A liquid fertilizer high-efficiency spraying device for plant planting

Abstract

The present invention relates to the field of agricultural machinery production, and more specifically, to a highly efficient liquid fertilizer spraying device for plant planting, comprising a spraying vehicle, wherein the spraying vehicle is provided with a liquid storage tank. The present invention forms an all-round fertilizer spraying system by arranging and designing an upper spraying frame and a lower spraying frame, and distributing a first spray head, a second spray head and a third spray head at specific angles. The upper spraying frame is arranged at an angle of forty-five degrees, and its spray head sprays obliquely upward, so that the fertilizer can be accurately delivered to the middle and upper branches and leaves of taller plants. The lower spraying frame is distributed at an angle of thirty degrees, and the corresponding spray head sprays obliquely downward, so that the rear of shorter herbaceous flowers and the lower part of taller shrubs can be taken care of. In addition, a third spray head located on the side wall below the lower spraying frame sprays obliquely downward, and is responsible for spraying the fertilizer to areas close to the ground, such as the roots of taller plants and the bottom of shorter plants, thereby avoiding the uneven fertilization caused by the height difference of plants in traditional devices.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery production, in particular to a liquid fertilizer high-efficiency spraying device for plant planting. Background Art

[0002] In modern agriculture, the degree of intensive plant cultivation is becoming increasingly higher, which puts higher requirements on crop yield, quality and production efficiency. In the process of plant growth, the role of fertilizer can effectively promote leaf growth and chlorophyll synthesis, making the leaves appear emerald green and tender in texture, and play a positive role in fruit development, which helps to increase fruit yield. In view of the generally large scale of modern plant cultivation, if liquid fertilizer is manually irrigated one by one, the efficiency is extremely low. Therefore, it is necessary to use high-efficiency spraying devices to cover a large area of ​​planting area in a short time, thereby significantly speeding up the rate of fertilization operations and meeting the fertilization needs of large-scale cultivation in modern agriculture.

[0003] Traditional liquid fertilizer spraying devices have certain defects in the spraying process: in flower planting areas with uneven heights or areas where tall and short plants are mixed, the heights of plants are uneven. When the angle of the nozzle is fixed, the direction and range of the fertilizer spraying are fixed. For taller plants, the fertilizer sprayed by the nozzle will be concentrated on the upper part of the plant, such as the upper part of the leaves and branches, while the lower part, especially the area close to the roots and the part blocked by the branches and leaves above, will hardly receive enough fertilizer, resulting in uneven fertilization and affecting the growth effect of the plants. Secondly, the nozzle in a fixed position cannot be moved to a more suitable position accordingly to ensure accurate fertilization of the changed plants, and cannot make targeted position adjustments according to the dynamic changes in the growth form of the plants, making it difficult to meet the requirements of the complex and changeable plant growth conditions for the fertilization position.

[0004] Therefore, it is necessary to propose a liquid fertilizer efficient spraying device for plant planting to solve the above technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a high-efficiency liquid fertilizer spraying device for plant planting, which solves the technical problem that traditional liquid fertilizer spraying devices have a fixed nozzle angle and a fixed position, cannot adapt to the height differences and growth form changes of plants in areas with uneven heights or mixed tall and short plants, resulting in uneven fertilization and difficulty in accurately positioning fertilization, thus affecting plant growth.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The technical solution adopted by the present invention to solve the technical problem is: a high-efficiency liquid fertilizer spraying device for plant planting, comprising a spraying vehicle, a liquid storage tank is arranged on the spraying vehicle, a pump body is arranged at the outlet end of the liquid storage tank, a spraying seat is arranged at the front end of the spraying vehicle, a push seat moving along the up and down direction is arranged on the spraying seat, a liquid separation seat connected to the pump body through a pipeline is arranged on the push seat, and a plurality of first spray heads are arranged on the push seat; A first main support is vertically arranged on a side of the push seat away from the spraying vehicle; An upper spray rack is arranged on the top of the first main bracket, and a plurality of the first spray heads are fixedly connected to the upper spray rack, and the upper spray rack and the liquid dispensing seat are fixedly connected through a pipeline; A second main bracket is disposed inside the push seat in a manner that it can move in an up-down direction, and the first main bracket is disposed on top of the second main bracket; A lower spray rack is arranged on one side of the second main bracket, and the lower spray rack and the liquid dispensing seat are fixedly connected through a pipeline; The second spray head is at least one in number and is fixedly installed on one side of the lower spray rack; An adjusting assembly is arranged on the second main bracket and is used to drive the upper spraying frame and the lower spraying frame to extend and retract from the first main bracket and the second main bracket respectively; The jet expansion component is arranged below the spraying vehicle and is used to increase the spraying areas of the second spray head and the third spray head.

[0007] Preferably, a telescopic seat is connected to the front end of the first main bracket and the lower part of the upper spraying rack through a slide rail, and a limit seat is installed at the left and right ends below the telescopic seat. The left and right ends of the telescopic seat are provided with a limit groove slidably connected to the limit seat, and the opposite ends of the two limit seats slide through the outside of the limit groove and are installed with a moving part. The adjustment component includes: There are two first inclined plates, which are symmetrically distributed at the left and right ends of the second main bracket; There are two second inclined plates, which are symmetrically arranged at the left and right ends of the first main bracket, and the second inclined plates are fixedly connected to the moving member on the first main bracket; There are two movable plates, and the front end thereof is fixedly connected to the first inclined plate, and the rear end thereof is fixedly connected to the upper part of the movable member of the second main bracket; Compression springs, two of which are provided, and upper and lower ends of which are rotatably connected to the second inclined plate and the second main bracket through rotating shafts respectively; A rotating assembly is arranged inside the first main bracket and the second main bracket, and is used to drive the upper spray rack and the lower spray rack to automatically rotate during the extension and retraction process; The locking assembly is arranged on the first main bracket and is used to control the moving stroke of the moving plate.

[0008] Preferably, the upper spray rack is distributed at an angle of forty-five degrees on the first main support, and the lower spray rack is distributed at an angle of thirty degrees on the upper spray rack.

[0009] Preferably, a plurality of third spray heads are fixedly connected to the lower side wall of the lower spray rack, and a barrier assembly is provided below the front end of the second main support.

[0010] Preferably, the enclosure assembly comprises: There are two rotating plates, which are rotatably connected below the front end of the second main support and are obliquely distributed on the second main support; A telescopic spring plate, which is fixedly connected to one end of the two rotating plates away from the second main bracket; A control seat, which has a slot inside and is installed obliquely above the telescopic spring plate; The control block is in a concave structure, the upper vertical end of which is connected in the notch by means of a slide rail, and the lower vertical end of which is fixedly connected to the telescopic end of the telescopic spring plate; The torsion rod is threadedly connected to the vertical end located above the control block and is used to control the control block to be fixed in the control seat.

[0011] Preferably, the locking assembly comprises: A concave block fixedly mounted above the moving member located on the second main support; A spring plunger, the top end of which slides through the top of the concave block and the bottom end of which slides through the bottom of the moving member of the second main bracket; A fixing ring, which is fixedly connected to the middle of the spring plug rod and inside the concave block; A pull plate, which is fixedly mounted on the top of the spring plug rod; There is at least one jack, which is opened on the top of the second main bracket, and one end of the spring plug rod is inserted into one of the jacks.

[0012] Preferably, one end of the upper spray rack and the lower spray rack are rotatably connected to the first main bracket and the second main bracket respectively, and the rotating assembly includes: A support plate, which is mounted on an end of the first main support away from the moving member; There are two worm gears, one of which is mounted on an end of the upper spray rack close to the first main bracket, and the other is mounted on an end of the lower spray rack close to the second main bracket; There are two groups of rollers, each group consists of two rollers, and the rollers in one group are rotatably connected inside the support plate; There are two worms, one end of which is fixedly connected to a roller wheel near the worm wheel and meshes with the worm wheel, and one end of the two worms away from the roller wheel is rotatably connected to the inner side of the first main bracket and the second main bracket respectively; There are two conveyor belts, which are respectively connected to the outer sides of the two sets of worm gears; The passive gears are provided with two and are fixedly mounted on the roller wheel on the side away from the worm gear; A linkage groove is provided inside the first main bracket and the second main bracket, and a rack plate meshing with the roller is installed on the inner side wall of the linkage groove.

[0013] Preferably, a through hole is provided in the middle of the spraying vehicle for the spraying seat to rotate up and down through, and the jet expansion component includes: The fixing seat is in a concave structure and is fixedly mounted on the spraying vehicle, and the rear end of the spraying seat is rotatably connected inside the fixing seat; A triangular plate, which is installed below the rear end of the spray seat; A motor, which is mounted under the spraying vehicle through a motor mount; A support frame is installed under the spraying vehicle and is fixedly connected to the output end of the motor; A turntable, which is rotatably connected to one side of the support frame and fixedly connected to the output shaft of the motor; A matching rod, which is arranged on the turntable; An extrusion seat is rotatably connected to the matching rod away from the turntable; There are two slide seats, which are fixedly connected to the spraying vehicle on both sides of the through hole, and a slide rod is installed inside the slide seat; The sliders are provided in two and are symmetrically fixedly mounted on the left and right ends of the extrusion seat. The end of the slider away from the extrusion seat is slidably connected to the slide rod in the slider seat.

[0014] Preferably, an adjustment seat is installed on the side wall of the turntable, and the adjustment seat is a concave structure. An adjustment rod is threadedly connected between the two vertical ends of the adjustment seat. The rear end of the adjustment rod is rotatably connected to an adjustment block that is connected to the inside of the adjustment seat through a slide rail. The matching rod is rotatably connected through a rotating shaft at the end of the adjustment block away from the adjustment seat.

[0015] Preferably, arc-shaped limit covers are installed at the left and right ends of the through hole, a curved spring rod is installed inside the arc-shaped limit cover, and curved blocks slidably connected inside the curved spring rod are installed at the left and right ends of the spray seat.

[0016] The present invention has achieved the following beneficial effects: (1) The present invention forms an all-round fertilizer spraying system by setting up and designing an upper spray rack and a lower spray rack, and distributing the first spray head, the second spray head and the third spray head at specific angles. The upper spray rack is set at a 45-degree angle, and its spray head sprays obliquely upward, which can accurately deliver fertilizer to the middle and upper branches and leaves of taller plants. The lower spray rack is distributed at a 30-degree angle, and the corresponding spray head sprays obliquely downward, which can take care of the back of shorter herbaceous flowers and the lower part of taller shrubs. There is also a third spray head located on the side wall below the lower spray rack, which sprays obliquely downward and is responsible for spraying fertilizer to areas close to the ground, such as the roots of taller plants and the bottom of shorter plants. This avoids the uneven fertilization caused by the height difference of plants in traditional devices, ensures that plants at different heights can obtain appropriate fertilizer supply from the top to the root, realizes accurate fertilization, and effectively guarantees the healthy growth of plants and full absorption of nutrients.

[0017] (2) The present invention is designed with an adjustment component. When the plants grow taller or shorter or the planting layout changes, the movable plate and other components can be driven by external force to move in conjunction, thereby driving the upper spray rack and the lower spray rack to flexibly extend and retract, so that the nozzle can be adjusted to the appropriate height and position in time, accurately adapting to the dynamic changes of the growth forms of different plants, ensuring that the fertilizer is accurately sprayed on all parts of the plant, overcoming the limitation of traditional fixed-position nozzles that are difficult to adjust as needed, and effectively improving the accuracy of fertilization.

[0018] (3) The present invention provides a rotating assembly so that the upper spray rack and the lower spray rack can rotate automatically during the extension and retraction process. The upper spray rack rotates forward when moving upward, while the lower spray rack rotates reversely. The two rotate in opposite directions. This ingenious design can dynamically adjust the spraying angle according to the actual height changes of the plants. Whether it is a tall plant or a relatively short plant, the fertilizer can be sprayed more accurately on different parts such as the upper branches and leaves, the sides, and around the roots. This effectively overcomes the blind spot problem of fertilization caused by the difference in plant height, realizes the height adaptation to plants of different heights, and greatly improves the accuracy of fertilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a right side view of the structure of the present invention; Figure 3 A schematic diagram of a first main bracket and a second main bracket of the present invention; Figure 4 This is an exploded view of the first main support of the present invention; Figure 5 It is a schematic diagram of the adjustment component of the present invention; Figure 6It is a schematic diagram of the enclosure assembly of the present invention; Figure 7 for Figure 4 A partial enlarged view of middle A; Figure 8 It is a partial cross-sectional view of the first main support of the present invention; Fig. 9 It is a schematic diagram of the jet expansion component of the present invention; Fig.10 for Fig. 9 A partial enlarged view of B.

[0021] Numbers in the figure: 1, spraying vehicle; 11, liquid storage tank; 111, first main bracket; 1111, telescopic seat; 1112, limit seat; 1113, moving part; 112, upper spray rack; 113, second main bracket; 114, lower spray rack; 115, second spray head; 116, third spray head; 117, enclosure assembly; 1171, rotating plate; 1172, telescopic spring plate; 1173, control seat; 1174, control block; 1175, torsion rod; 12, pump body; 13, spray seat; 14, push seat; 15, liquid separation seat; 16, first spray head; 2, adjustment assembly; 21, first inclined plate; 22, second inclined plate; 23, moving plate; 241, concave block; 2 42. Spring rod; 243. Fixing ring; 244. Pull plate; 245. Socket; 24. Compression spring; 211. Rotating assembly; 212. Support plate; 213. Worm gear; 214. Roller; 215. Worm; 216. Conveyor belt; 217. Passive gear; 218. Rack plate; 311. Jet expansion assembly; 312. Fixed seat; 313. Triangular plate; 314. Motor; 315. Support frame; 316. Turntable; 3161. Adjusting seat; 3162. Adjusting rod; 3163. Adjusting block; 317. Matching rod; 318. Extrusion seat; 319. Sliding seat; 3191. Sliding block; 321. Arc limit cover; 322. Curved spring rod; 323. Curved block. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 3As shown, a liquid fertilizer efficient spraying device for plant planting comprises a spraying vehicle 1, wherein the spraying vehicle 1 is provided with a liquid storage tank 11, wherein the outlet end of the liquid storage tank 11 is provided with a pump body 12, wherein a spraying seat 13 is provided at the front end of the spraying vehicle 1, wherein a push seat 14 moving along the up and down direction is provided on the spraying seat 13, wherein a liquid separation seat 15 connected to the pump body 12 through a pipeline is provided on the push seat 14, wherein a plurality of first spray heads 16 are provided on the push seat 14; a first main bracket 111, which is vertically arranged on a side of the push seat 14 away from the spraying vehicle 1; an upper spraying frame 112, which is arranged on the top of the first main bracket 111, wherein a plurality of the first spray heads 16 are fixedly connected to the upper spraying frame 112, wherein the upper spraying frame 112 It is fixedly connected to the liquid separation seat 15 through a pipeline; the second main bracket 113 is arranged inside the push seat 14 in a manner that it can be moved in the up and down directions, and the first main bracket 111 is arranged on the top of the second main bracket 113; the lower spray rack 114 is arranged on one side of the second main bracket 113, and the lower spray rack 114 and the liquid separation seat 15 are fixedly connected through a pipeline; the second spray head 115, the number of which is at least one, and is fixedly installed on one side of the lower spray rack 114, the upper spray rack 112 is distributed at a forty-five degree angle on the first main bracket 111, and the lower spray rack 114 is distributed at a thirty degree angle on the upper spray rack 112, and a plurality of third spray heads 116 are fixedly connected to the lower side wall of the lower spray rack 114.

[0024] It should be noted that the fertilizer is pre-stored in the liquid storage tank 11 of the spraying vehicle 1. When spraying is required, the pump body 12 is started, and the pump body 12 extracts the liquid fertilizer in the liquid storage tank 11 and transports it to the liquid separation seat 15 through a pipeline. The liquid separation seat 15 diverts the fertilizer, and a part of the fertilizer is transported to the upper spraying rack 112 through a pipeline. Since the upper spraying rack 112 is distributed on the first main bracket 111 at a 45-degree angle, and the first main bracket 111 is vertically arranged on the side of the push seat 14 away from the spraying vehicle 1, when the fertilizer is sprayed from the first spray head 16, it will be sprayed at a certain oblique upward angle. This angle design is conducive to spraying fertilizer to the middle and upper branches and leaves of taller plants, so that the upper part of the taller plants can fully absorb nutrients. Another part of the fertilizer is transported to the lower spray rack 114 through a pipeline. The lower spray rack 114 is distributed on the second main bracket 113 at an angle of thirty degrees. When the fertilizer is sprayed from the second spray head 115, it will be sprayed at a relatively downward angle, which can spray the fertilizer to the back of shorter herbaceous flowers and the lower area of ​​taller shrubs. A portion of the fertilizer in the lower spray rack 114 is transported to the third spray head 116. Since the third spray head 116 is located on the lower side wall of the lower spray rack 114, its spray direction is obliquely downward. When facing the plant planting area with uneven heights, it is mainly responsible for spraying the fertilizer to the area closer to the ground, such as around the roots of taller plants and the bottom of shorter plants. It cooperates with the upward inclined spray of the upper spray rack 112 and the downward inclined spray of the second spray head 115 on the side of the lower spray rack 114 to form a full-range fertilizer spraying system, ensuring that plants at different heights, from the top branches and leaves to the root area, can receive fertilizer.

[0025] The present invention designs upper and lower spray racks 114 for plants of different heights, and distributes the first spray head 16 and the second spray head 115 at specific angles, respectively, so that fertilizer can be accurately applied to different areas such as the upper and lower parts of taller plants and the rear part of shorter plants, thereby avoiding the problem of uneven fertilization caused by the height difference of plants caused by the traditional fixed-angle spray heads, so that each plant can get the appropriate fertilizer supply, which is conducive to the healthy growth of the plants and the full absorption of nutrients; It is worth noting that a first detection sensor is installed on the first main bracket 111, using a laser radar or an ultrasonic sensor, and a first electric push rod is installed on the spraying seat 13 and inside the pushing seat 14, which is used for moving the pushing seat 14 forward and backward and moving the second main bracket 113 up and down respectively. When the control system receives the data from the first detection sensor, it will analyze and start the first electric push rod according to the preset program and algorithm, so that the pushing seat 14 and the second main bracket 113 are moved to a suitable height for the plants, ensuring that the fertilizer can evenly cover the plants within the lateral range.

[0026] like Figure 2-Figure 5As shown, the front end of the first main bracket 111 and the lower part of the upper spray rack 112 are connected with a telescopic seat 1111 through a slide rail, and the left and right ends of the lower part of the telescopic seat 1111 are installed with limited seats 1112. The left and right ends of the telescopic seat 1111 are provided with limited grooves slidably connected with the limited seats 1112. The opposite ends of the two limited seats 1112 slide through the outside of the limited groove and are installed with a moving part 1113, an adjustment component 2, which is arranged on the second main bracket 113, and is used to drive the upper spray rack 112 and the lower spray rack 114 to extend and retract from the first main bracket 111 and the second main bracket 113 respectively; the adjustment component 2 The joint assembly 2 includes: a first inclined plate 21, of which there are two and are symmetrically distributed at the left and right ends of the second main bracket 113; a second inclined plate 22, of which there are two and are symmetrically distributed at the left and right ends of the first main bracket 111, and the second inclined plate 22 is fixedly connected to the moving part 1113 on the first main bracket 111; a moving plate 23, of which there are two and the front end of which is fixedly connected to the first inclined plate 21, and the rear end of which is fixedly connected to the upper part of the moving part 1113 of the second main bracket 113; a compression spring 24, of which there are two and the upper and lower ends are rotatably connected to the second inclined plate 22 and the second main bracket 113 through a rotating shaft respectively.

[0027] It should be noted that when the positions of the upper spray rack 112 and the lower spray rack 114 need to be adjusted to adapt to the changes in plant growth morphology, the external force pushes the moving plate 23 to move forward, and the movement of the moving plate 23 drives the first inclined plate 21 to move forward and the moving member 1113 of the second main bracket 113 to move upward, and the moving members 1113 on the first main bracket 111 and the second main bracket 113 respectively drive the limit seat 1112 connected thereto to move. The position slots are slidably connected. When the limit seat 1112 moves, the telescopic seat 1111 is driven to extend or retract from the first main bracket 111 and the second main bracket 113. When the telescopic seat 1111 extends, the upper spray rack 112 is driven to move upward and the lower spray rack 114 is driven to move downward, thereby realizing the telescopic action of the upper spray rack 112 and the lower spray rack 114 from the first main bracket 111 and the second main bracket 113 respectively. In the whole process, the compression spring 24 plays the role of buffering and auxiliary reset; This technical solution can effectively solve the problem that traditional fixed-position sprinklers are difficult to adjust the fertilization position according to the dynamic changes in plant growth morphology. Through the ingenious design of the adjustment component 2, the upper sprinkler rack 112 and the lower sprinkler rack 114 can be flexibly extended and moved. Regardless of whether the plants grow taller or shorter, or the planting layout changes, the sprinkler can be adjusted to the appropriate height and position in time to ensure that the fertilizer is accurately sprayed on all parts of the plant, thereby improving the accuracy and effectiveness of fertilization and being beneficial to the healthy growth of plants.

[0028] like Figure 3 and Figure 6 As shown, a barrier assembly 117 is provided below the front end of the second main bracket 113, and the barrier assembly 117 includes: two rotating plates 1171, which are rotatably connected below the front end of the second main bracket 113 and are obliquely distributed on the second main bracket 113; a telescopic spring plate 1172, which is fixedly connected to one end of the two rotating plates 1171 away from the second main bracket 113, and a second electric push rod for driving the telescopic spring plate 1172 to rotate is rotatably connected below the second main bracket 113; a control seat 1173, which has a notch inside and is installed obliquely above the telescopic spring plate 1172; a control block 1174, which is a concave structure, the vertical end above which is connected in the notch by a slide rail, and the vertical end below which is fixedly connected to the telescopic end of the telescopic spring plate 1172; a torsion rod 1175, which is threadedly connected to the vertical end above the control block 1174, and is used to control the control block 1174 to be fixed in the control seat 1173.

[0029] It should be noted that a second detection sensor is installed below the second main bracket 113, which detects the plant area below and activates the second electric push rod to push the telescopic spring plate 1172 to rotate to a suitable angle, accurately controlling the flow direction and coverage of the fertilizer sprayed by the third spray head 116, ensuring that the fertilizer accurately acts on the part of the plant that needs fertilization; By precisely controlling the position of the control block 1174 on the control seat 1173, and then accurately adjusting the extended length of the telescopic spring plate 1172, adjusting it to a suitable position and locking the control block 1174 by torsion rod 1175, the stability of the enclosure can be maintained during the fertilization process, and the length of the enclosure assembly 117 can be flexibly changed according to factors such as the growth morphology changes, height differences, and planting density of different plants.

[0030] It is worth noting that the tail end of the telescopic spring plate 1172 is arranged in a hook shape to guide the flow of the fertilizer and prevent the fertilizer from being excessively sprayed onto areas other than the green plants.

[0031] like Figure 4 and Figure 5As shown, the lock assembly is arranged on the first main bracket 111 and is used to control the movement stroke of the moving plate 23. The lock assembly includes: a concave block 241, which is fixedly installed above the moving member 1113 located on the second main bracket 113; a spring plug rod 242, whose top end slides through the top of the concave block 241 and whose bottom end slides through the bottom of the moving member 1113 of the second main bracket 113; a fixing ring 243, which is fixedly connected to the middle of the spring plug rod 242 and inside the concave block 241; a pull plate 244, which is fixedly installed on the top of the spring plug rod 242; and a plug hole 245, which is at least one and is opened at the top of the second main bracket 113, and one end of the spring plug rod 242 is inserted into one of the plug holes 245.

[0032] It should be noted that: the bottom end of the spring rod 242 is inserted into the socket 245 under the action of the spring, locking the relative position of the concave block 241 and the moving part 1113 of the second main bracket 113, and limiting the movement of the moving plate 23. When adjustment is required, the pull plate 244 is pulled up to release the bottom end of the spring rod 242 from the socket 245 and unlock, and the moving plate 23 is pushed to drive the relevant parts to move to adjust the position of the upper and lower spray racks 114. After reaching the position, the pull plate 244 is released, and the spring rod 242 rebounds and inserts into the corresponding socket 245 to be locked again, so as to accurately adjust the telescopic position of the upper spray rack 112 and the lower spray rack 114, which enables the device to accurately spray fertilizer to specific parts of the plant according to the height of different plants, planting layout, etc.

[0033] like Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, one end of the upper spray rack 112 and the lower spray rack 114 are rotatably connected to the first main bracket 111 and the second main bracket 113 respectively, and the rotating assembly 211 is arranged inside the first main bracket 111 and the second main bracket 113, and is used to drive the upper spray rack 112 and the lower spray rack 114 to rotate automatically during the extension and retraction process; the rotating assembly 211 includes: a support plate 212, which is installed at one end of the first main bracket 111 away from the moving part 1113; a worm gear 213, which is provided with two, one of which is installed at one end of the upper spray rack 112 close to the first main bracket 111, and the other is installed at one end of the lower spray rack 114 close to the second main bracket 113; a roller wheel 214, which is provided with two groups, one group is Two, one group of rollers 214 are rotatably connected inside the support plate 212; two worms 215 are provided, one end of which is fixedly connected to the roller 214 close to the worm gear 213 and meshed with the worm gear 213, and the ends of the two worms 215 away from the roller 214 are rotatably connected inside the first main bracket 111 and the second main bracket 113 respectively; two conveyor belts 216 are provided, and are respectively connected to the outer sides of the two groups of worm gears 213 for transmission; two passive gears 217 are provided, and are fixedly installed on the roller 214 away from the worm gear 213; linkage grooves are opened inside the first main bracket 111 and the second main bracket 113, and rack plates 218 meshing with the roller 214 are installed on the inner side walls of the linkage grooves.

[0034] It should be noted that: when the telescopic seat 1111 is extended, the support plate 212 connected to the telescopic seat 1111 also moves accordingly, thereby causing the passive gear 217 to roll and rotate along the rack plate 218, and the passive gear 217 drives the coaxial roller 214 to rotate, and through the transmission of the conveyor belt 216, another group of rollers 214 rotate synchronously, and the worm 215 connected to the roller 214 rotates accordingly, and because the worm 215 is engaged with the worm gear 213 at the ends of the upper spraying frame 112 and the lower spraying frame 114, the worm 215 rotates to drive the worm gear 213 to rotate, thereby driving the upper spraying frame 112 and the lower spraying frame 114 to rotate, and the upper spraying frame 112 rotates forward when moving upward, and the lower spraying frame 114 rotates in the opposite direction, so as to meet the fertilization needs of plants at different heights and expand the coverage and angle of fertilizer spraying; In the present invention, the upper spray rack 112 and the lower spray rack 114 automatically rotate during the extension and retraction process, and can dynamically adjust the spraying angle according to the change of plant height. For taller plants, the fertilizer can be better and more evenly sprayed on the upper branches and leaves, sides and around the roots, thereby improving the adhesion rate of fertilizer on different parts of the plant, making fertilization more accurate and efficient, promoting the absorption and utilization of nutrients by plants, and improving plant growth quality and yield.

[0035] like Figure 1 and Fig. 9 As shown, a through hole is provided in the middle of the spraying vehicle 1 for the spraying seat 13 to rotate up and down through, and a jet range expansion component 311 is arranged below the spraying vehicle 1 to increase the spraying area of ​​the second spray head 115 and the third spray head 116. The jet range expansion component 311 includes: a fixed seat 312, which is a concave structure and is fixedly installed on the spraying vehicle 1. The rear end of the spraying seat 13 is rotatably connected inside the fixed seat 312; a triangular plate 313, which is installed below the rear end of the spraying seat 13; a motor 314, which is installed below the spraying vehicle 1 through the motor 314 seat; a support frame 315, which is installed below the spraying vehicle 1, and It is fixedly connected to the output end of the motor 314; a turntable 316, which is rotatably connected to one side of the support frame 315 and is fixedly connected to the output shaft of the motor 314; a matching rod 317, which is arranged on the turntable 316; an extrusion seat 318, which is rotatably connected to the matching rod 317 away from the turntable 316; a sliding seat 319, which is provided with two in number and is fixedly connected to the spraying vehicle 1 on both sides of the through hole, and a sliding rod is installed inside the sliding seat 319; a sliding block 3191, which is provided with two in number and is symmetrically fixedly installed at the left and right ends of the extrusion seat 318, and the end of the sliding block 3191 away from the extrusion seat 318 is slidably connected to the sliding rod in the sliding seat 319.

[0036] It should be noted that after the motor 314 is started, its output shaft drives the turntable 316 to rotate. The matching rod 317 on the turntable 316 makes a circular motion as the turntable 316 rotates. The matching rod 317 is connected to the extrusion seat 318 during the motion, thereby pushing the extrusion seat 318 to move. Since the left and right ends of the extrusion seat 318 are slidably connected to the sliding rod in the sliding seat 319 through the slider 3191, this limits the extrusion seat 318 to only make a linear reciprocating motion along the direction of the sliding rod. When the extrusion seat 318 reciprocates in a linear manner, it will periodically squeeze and push the triangular plate 313, thereby driving the spray seat 13 to reciprocate around the connection point with the fixed seat 312 as the axis. The first spray head 16 on the upper spray frame 112, the second spray head 115 on the lower spray frame 114, and the third spray head 116 on the side wall below the lower spray frame 114 will change the spray direction as the spray seat 13 reciprocates, thereby expanding the spray area of ​​the fertilizer in the horizontal direction and achieving the range expansion effect of the spray area.

[0037] like Fig. 9 and Fig.10As shown, an adjustment seat 3161 is installed on the side wall of the turntable 316, and the adjustment seat 3161 is a concave structure. An adjustment rod 3162 is threadedly connected between the two vertical ends of the adjustment seat 3161, and the rear end of the adjustment rod 3162 is rotatably connected to an adjustment block 3163 connected through a slide rail inside the adjustment seat 3161, and the matching rod 317 is rotatably connected through a rotating shaft at the end of the adjustment block 3163 away from the adjustment seat 3161.

[0038] It should be noted that by rotating the adjusting rod 3162, which is threadedly connected to the adjusting seat 3161 and has the adjusting block 3163 at the rear end, the adjusting block 3163 moves along the slide rail of the adjusting seat 3161, thereby changing the length of the force arm connected to the matching rod 317. The force arm becomes longer, and when the turntable 316 rotates, the matching rod 317 pushes the extrusion seat 318 to increase its stroke, the rotation angle range of the spray seat 13 becomes larger, and the spraying area is expanded; when the force arm becomes shorter, the opposite is true, thereby achieving precise adjustment of the spraying area.

[0039] like Fig. 9 As shown, arc-shaped limit covers 321 are installed at the left and right ends of the through hole, and curved spring rods 322 are installed inside the arc-shaped limit covers 321. Curved blocks 323 slidably connected inside the curved spring rods 322 are installed at the left and right ends of the spray seat 13.

[0040] It should be noted that when the spray seat 13 rotates, the curved blocks 323 at both ends thereof slide in the curved spring rods 322 in the arc-shaped limit cover 321, and the curved spring rods 322 use their own elasticity to limit and buffer the curved blocks 323 to prevent the spray seat 13 from rotating too much. Moreover, when not in use, the curved spring rods 322 will release the stored spring potential energy, and exert a corresponding force on the spray seat 13 through interaction with the curved blocks 323, thereby driving the spray seat 13 to maintain a relatively balanced state on the spray vehicle 1, so that the first detection sensor and the second detection sensor can avoid problems such as sensor detection angle deviation and inaccurate data caused by the imbalance of the spray seat 13 in the later stage.

[0041] The working principle of the present invention is as follows: the liquid fertilizer high-efficiency spraying device for plant planting, when in use: the fertilizer is stored in the liquid storage tank 11 of the spraying vehicle 1, the pump body 12 works to pump the fertilizer to the liquid dispensing seat 15 for diversion, the liquid dispensing seat 15 distributes the fertilizer to the upper spraying rack 112, which is distributed at a 45-degree angle on the first main bracket 111, the first spray head 16 sprays obliquely upward, which is used for fertilizing the upper branches and leaves of taller plants, and the fertilizer is sent to the lower spraying rack 114, which is distributed at a 30-degree angle on the second main bracket 113, the second spray head 115 sprays obliquely downward, and the third spray head 116 sprays obliquely downward to cover shorter plants and the lower part and root area of ​​taller plants; The moving plate 23 is pushed by an external force, which drives the front end of the first inclined plate 21 to move horizontally and the moving member 1113 of the second main bracket 113 to move upward. The two moving members 1113 move the limit seat 1112. Since the limit seat 1112 is slidably connected with the limit groove of the telescopic seat 1111, the telescopic seat 1111 is driven to extend. When the upper spraying frame 112 is extended, the lower spraying frame 114 moves downward. The compression spring 24 buffers and assists in resetting. When the telescopic seat 1111 is extended, the support plate 212 is driven to move, so that the passive gear 217 rolls and rotates along the rack plate 218, and the passive gear 217 drives the coaxial roller 214 to rotate, and the other set of rollers 214 are driven to rotate synchronously through the transmission belt 216, so that the connected worm 215 rotates, and the worm 215 drives the worm wheel 213 to rotate, driving the upper spraying frame 112 to rotate in the forward direction and the lower spraying frame 114 to rotate in the reverse direction, so as to adapt to the change of plant height and expand the coverage and angle of fertilizer spraying; The motor 314 drives the turntable 316 to rotate, and the circular motion of the matching rod 317 pushes the extrusion seat 318 to reciprocate in a straight line. The extrusion seat 318 pushes the triangular plate 313 to make the spray seat 13 reciprocate, driving each spray head to change the spray direction and expand the horizontal spray area. When the adjusting rod 3162 is rotated, due to the threaded connection and the slide rail matching, the adjusting block 3163 will move along the slide rail of the adjusting seat 3161, changing the length of the force arm connected to the matching rod 317. The force arm becomes longer, and when the turntable 316 rotates, the stroke of the matching rod 317 pushing the extrusion seat 318 increases, the rotation angle range of the spray seat 13 becomes larger, and the spray area is expanded; when the force arm becomes shorter, the stroke of the matching rod 317 pushing the extrusion seat 318 decreases, the rotation angle range of the spray seat 13 becomes smaller, and the spray area is reduced accordingly, thereby realizing precise adjustment of the spray area.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A liquid fertilizer high-efficiency spraying device for plant planting, comprising a spraying vehicle (1), characterized in that: The spraying vehicle (1) is provided with a liquid storage tank (11), the outlet end of the liquid storage tank (11) is provided with a pump body (12), the front end of the spraying vehicle (1) is provided with a spraying seat (13), the spraying seat (13) is provided with a push seat (14) movable in an up-and-down direction, the push seat (14) is provided with a liquid dispensing seat (15) connected to the pump body (12) via a pipeline, and the push seat (14) is provided with a plurality of first spray heads (16); A first main support (111) is vertically arranged on a side of the push seat (14) away from the spraying vehicle (1); An upper spray rack (112) is arranged on the top of the first main bracket (111), and a plurality of the first spray heads (16) are fixedly connected to the upper spray rack (112); the upper spray rack (112) and the liquid dispensing seat (15) are fixedly connected via a pipeline; A second main bracket (113) is arranged inside the push seat (14) in a manner that it can move in an up-down direction, and the first main bracket (111) is arranged on top of the second main bracket (113); A lower spray rack (114) is arranged on one side of the second main bracket (113), wherein the lower spray rack (114) and the liquid dispensing seat (15) are fixedly connected via a pipeline; The second spray head (115) is at least one in number and is fixedly installed on one side of the lower spray frame (114); An adjustment assembly (2) disposed on the second main support (113) and used to drive the upper spraying frame (112) and the lower spraying frame (114) to extend and retract from the first main support (111) and the second main support (113), respectively; A jet range expansion component (311) is arranged below the spraying vehicle (1) and is used to increase the spraying areas of the second spray head (115) and the third spray head (116).

2. A liquid fertilizer high-efficiency spraying device for plant planting according to claim 1, characterized in that; A telescopic seat (1111) is connected to the front end of the first main support (111) and the lower part of the upper spraying frame (112) through a slide rail, and limit seats (1112) are installed at the left and right ends below the telescopic seat (1111). The left and right ends of the telescopic seat (1111) are provided with limit slots slidably connected to the limit seats (1112), and the opposite ends of the two limit seats (1112) slide through the outside of the limit slots and are installed with moving parts (1113). The adjustment component (2) comprises: Two first inclined plates (21) are provided and are symmetrically distributed at the left and right ends of the second main bracket (113); Two second inclined plates (22) are provided and are symmetrically disposed at the left and right ends of the first main bracket (111), and the second inclined plates (22) are fixedly connected to the moving member (1113) on the first main bracket (111); Two movable plates (23) are provided, and the front end thereof is fixedly connected to the first inclined plate (21), and the rear end thereof is fixedly connected to the upper portion of the movable member (1113) of the second main bracket (113); Compression springs (24), of which two are provided, and upper and lower ends are rotatably connected to the second inclined plate (22) and the second main bracket (113) via rotating shafts respectively; A rotating assembly (211), which is disposed inside the first main support (111) and the second main support (113), and is used to drive the upper spraying frame (112) and the lower spraying frame (114) to automatically rotate during the extension and retraction process; A locking assembly is arranged on the first main bracket (111) and is used to control the moving stroke of the moving plate (23).

3. The liquid fertilizer high-efficiency spraying device for plant planting according to claim 1, characterized in that; The upper spray rack (112) is distributed on the first main support (111) at an angle of forty-five degrees, and the lower spray rack (114) is distributed on the upper spray rack (112) at an angle of thirty degrees.

4. The liquid fertilizer high-efficiency spraying device for plant planting according to claim 1, characterized in that: A plurality of third spray heads (116) are fixedly connected to the lower side wall of the lower spray frame (114), and a barrier assembly (117) is provided below the front end of the second main support (113).

5. A liquid fertilizer high-efficiency spraying device for plant planting according to claim 4, characterized in that; The enclosure assembly (117) comprises: There are two rotating plates (1171) which are rotatably connected below the front end of the second main support (113) and are obliquely distributed on the second main support (113); A telescopic spring plate (1172) fixedly connected to one end of the two rotating plates (1171) away from the second main support (113); A control seat (1173) is provided with a slot therein and is installed obliquely above the telescopic spring plate (1172); The control block (1174) is in a concave structure, the upper vertical end of which is connected in the slot by means of a slide rail, and the lower vertical end of which is fixedly connected to the telescopic end of the telescopic spring plate (1172); The torsion rod (1175) is threadedly connected to the vertical end located above the control block (1174) and is used to control the control block (1174) to be fixed in the control seat (1173).

6. A liquid fertilizer high-efficiency spraying device for plant planting according to claim 2, characterized in that; The lock assembly comprises: A concave block (241) fixedly mounted above a moving member (1113) located on the second main support (113); A spring rod (242), the top end of which slides through the top of the concave block (241), and the bottom end of which slides through the bottom of the moving member (1113) of the second main bracket (113); A fixing ring (243) fixedly connected to the middle of the spring plug rod (242) and inside the concave block (241); A pull plate (244) fixedly mounted on the top of the spring plug rod (242); There is at least one insertion hole (245) disposed on the top of the second main support (113), and one end of the spring insertion rod (242) is inserted into one of the insertion holes (245).

7. A liquid fertilizer high-efficiency spraying device for plant planting according to claim 2, characterized in that; One end of the upper spray rack (112) and the lower spray rack (114) are rotatably connected to the first main bracket (111) and the second main bracket (113), respectively, and the rotating assembly (211) comprises: A support plate (212) mounted on an end of the first main support (111) away from the moving member (1113); There are two worm wheels (213), one of which is installed at one end of the upper spray rack (112) close to the first main bracket (111), and the other is installed at one end of the lower spray rack (114) close to the second main bracket (113); The rollers (214) are provided in two groups, each group having two rollers, and the rollers (214) in one group are rotatably connected inside the support plate (212); There are two worms (215), one end of which is fixedly connected to a roller (214) close to the worm wheel (213) and meshes with the worm wheel (213); one end of the two worms (215) away from the roller (214) is rotatably connected to the inner side of the first main bracket (111) and the second main bracket (113); There are two conveyor belts (216) which are respectively connected to the outer sides of the two sets of worm gears (213); Two passive gears (217) are provided and fixedly mounted on the roller (214) at a side away from the worm gear (213); The first main bracket (111) and the second main bracket (113) are provided with linkage grooves inside, and the inner side walls of the linkage grooves are provided with rack plates (218) meshing with the rollers (214).

8. The liquid fertilizer high-efficiency spraying device for plant planting according to claim 1, characterized in that: A through hole is provided in the middle of the spraying vehicle (1) for the spraying seat (13) to rotate up and down through, and the jet range expansion component (311) comprises: A fixed seat (312) having a concave structure and fixedly mounted on the spraying vehicle (1), wherein the rear end of the spraying seat (13) is rotatably connected to the inner side of the fixed seat (312); A triangular plate (313) mounted below the rear end of the spray seat (13); A motor (314) is mounted below the spraying vehicle (1) via a motor (314) seat; A support frame (315) is installed below the spraying vehicle (1) and is fixedly connected to the output end of the motor (314); A turntable (316) is rotatably connected to one side of the support frame (315) and fixedly connected to the output shaft of the motor (314); A matching rod (317) disposed on the rotating disk (316); An extrusion seat (318) is rotatably connected to the matching rod (317) away from the rotating disk (316); Two slide seats (319) are provided and fixedly connected to the spraying vehicle (1) at both sides of the through hole, and a slide rod is installed inside the slide seat (319); The sliders (3191) are provided in two numbers and are symmetrically fixedly mounted at the left and right ends of the extrusion seat (318). The end of the slider (3191) away from the extrusion seat (318) is slidably connected to a slide rod in the slide seat (319).

9. The liquid fertilizer high-efficiency spraying device for plant planting according to claim 8, characterized in that: An adjustment seat (3161) is installed on the side wall of the turntable (316), and the adjustment seat (3161) is in a concave structure. An adjustment rod (3162) is threadedly connected between the two vertical ends of the adjustment seat (3161), and the rear end of the adjustment rod (3162) is rotatably connected to an adjustment block (3163) that is connected to the adjustment seat (3161) through a slide rail. The matching rod (317) is rotatably connected to the end of the adjustment block (3163) away from the adjustment seat (3161) through a rotating shaft.

10. The liquid fertilizer high-efficiency spraying device for plant planting according to claim 8, characterized in that: The left and right ends of the through hole are provided with arc-shaped limit covers (321), the interior of the arc-shaped limit covers (321) is provided with curved spring rods (322), and the left and right ends of the spray seat (13) are provided with curved blocks (323) slidably connected inside the curved spring rods (322).

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