Injecting device for fruit trees in test field

Abstract

The invention relates to an injection device for fruit trees in a test field. The device comprises a rack, a blending mechanism, a stirring mechanism and a spraying mechanism, the blending mechanism is installed on the rack, quantitative feeding can be conducted through the blending mechanism, and therefore it is guaranteed that the concentration and dosage of a blended preparation meet the use requirements; the stirring mechanism is mounted on the rack, the stirring mechanism is connected with the blending mechanism, and materials supplied by the blending mechanism can be uniformly stirred through the stirring mechanism; the spraying mechanism is mounted on the rack and connected with the stirring mechanism, and an atomizing nozzle in the spraying mechanism can be driven by the driving mechanism to regularly swing, so that the spraying direction of the atomizing nozzle is continuously changed. According to the scheme provided by the invention, on-site allocation can be carried out according to the follow-up injection requirement, time and labor are saved, and moreover, the spraying uniformity of the preparation can be improved through the spraying mechanism, so that the follow-up injection effect is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery and equipment, and in particular to a top-dressing device for fruit trees in experimental fields. Background Art

[0002] Experimental fields are important bases for agricultural scientific research and production practice. Through experiments on fruit tree planting, fertilization, irrigation, pest and disease control, etc., they can provide scientific basis and technical support for agricultural production.

[0003] Among them, conducting control experiments is one of the methods to study the best planting pattern for fruit trees. The specific approach is: when injecting preparations (including medicines and nutrients) to the same variety of fruit trees, by changing the content of a certain substance, and then studying the effect of the substance on the growth of the fruit trees, through the study of the characteristics of various substances, summarize the preparation formula that is most conducive to the growth of this variety of fruit trees, and finally promote it to improve the economic benefits of the orchard.

[0004] In actual operation, researchers usually use backpack manual sprayers to perform follow-up injections of preparations on fruit trees, which is labor-intensive. In addition, since the ratios of various substances in the preparations need to be adjusted frequently, researchers need to frequently travel back and forth between the test fields and the mixing room, further increasing the workload. Furthermore, manual spraying has poor uniformity, which can easily lead to a large amount of preparation on the leaves in some areas and a small amount on the leaves in some areas, or even dead corners for spraying, which affects the effect of the follow-up injection and thus the final statistical data. Summary of the invention

[0005] In order to solve or partially solve the problems existing in the related technology, the present application provides a follow-up injection device for fruit trees in experimental fields. The device can be prepared on-site according to the follow-up injection needs, saving time and effort. In addition, the spraying mechanism can improve the uniformity of the preparation during spraying, thereby ensuring the follow-up injection effect.

[0006] The present application provides a device for adding fertilizer to fruit trees in an experimental field, comprising:

[0007] frame;

[0008] A mixing mechanism, which is mounted on the frame and can be used to perform quantitative feeding, thereby ensuring that the concentration and dosage of the prepared preparation meet the use requirements;

[0009] A stirring mechanism; the stirring mechanism is installed on the frame, and the stirring mechanism is connected to the mixing mechanism, and the material supplied by the mixing mechanism can be mixed evenly through the stirring mechanism;

[0010] Spraying mechanism; the spraying mechanism is installed on the frame, and the spraying mechanism is connected to the stirring mechanism. The spraying mechanism includes a vertical pole, a movable plate, an atomizing nozzle, and a sliding rod. A plurality of movable plates are hingedly installed on the vertical pole at equal intervals. The movable plates are connected by connecting rods so that the movement trends of the movable plates remain consistent. Atomizing nozzles are fixedly installed on the movable plates. A sliding rod corresponding to the lowest movable plate is also installed on the frame. The sliding rod can be driven to reciprocate vertically through a driving mechanism, and then the movable plate is lifted back and forth, so that the movable plate is continuously rotated along its hinge, thereby changing the spraying direction of the atomizing nozzle continuously.

[0011] Optionally, in some embodiments, the driving mechanism includes a transmission shaft and wheels, the transmission shaft is rotatably mounted at the bottom of the frame, and wheels are fixedly connected to both ends of the transmission shaft, and an eccentrically arranged annular groove is provided on the side of the wheel on the side where the spraying mechanism is installed.

[0012] Optionally, in some embodiments, a limiting frame is fixedly connected to the frame, the sliding rod is slidably connected in the limiting frame, a limiting column is provided at one end of the sliding rod, the limiting column is slidably connected in the annular groove, and a roller corresponding to the bottom movable plate is provided at the other end of the sliding rod. A spring is also connected between the limiting frame and the bottom movable plate, and the spring can ensure that the roller and the bottom movable plate are always in close contact.

[0013] Optionally, in some embodiments, the stirring mechanism includes a rotating shaft and stirring blades. The rotating shaft is rotatably installed on the frame along the vertical axis. A first gear is fixedly connected to the bottom end of the rotating shaft, and a second gear meshing with the first gear is fixedly connected to the transmission shaft. The rotating shaft can be driven to rotate by the transmission shaft, and a stirring blade corresponding to the stirring tank is fixedly installed on the top end of the rotating shaft.

[0014] Optionally, in some embodiments, the stirring tank is in a U-shaped structure, and the rotating shaft passes through the center of the stirring tank. The bottom of the stirring tank is connected to the liquid supply tank through a discharge pipe, and a third valve is installed on the discharge pipe. The outlet of the liquid supply tank is connected to the liquid supply pipe through a booster pump, and the liquid supply pipe is connected to a hose corresponding to each atomizing nozzle.

[0015] Optionally, in some embodiments, the mixing mechanism includes a water pump, a liquid feeding mechanism, and a solid feeding mechanism. The water pump is fixedly mounted on a frame, one end of the water pump is connected to a water tank, and the other end is connected to a mixing tank through a water inlet pipe, and a first flow meter is also installed on the water inlet pipe; the frame is also equipped with a liquid feeding mechanism and a solid feeding mechanism.

[0016] Optionally, in some embodiments, the liquid feeding mechanism includes a base, a liquid storage tank, and a liquid outlet pipe. The base is a triangular structure, which is lower on the side close to the stirring tank and higher on the side away from the stirring tank. A liquid storage tank is placed on the base, and the lower side of the liquid storage tank is connected to the stirring tank through the liquid outlet pipe. A second flow meter and a first valve are also provided on the liquid outlet pipe. The installation height of the base is higher than the stirring tank, so that the liquid in the liquid storage tank can automatically flow into the stirring tank.

[0017] Optionally, in some embodiments, the solid feeding mechanism includes a fixed frame, a hopper, a storage box, and a weighing device. The hopper is fixedly mounted on the frame via the fixed frame, and a second valve is provided at the discharge port of the hopper. A weighing device is also installed on the fixed frame, and a storage box corresponding to the discharge port of the hopper is placed on the weighing device.

[0018] Optionally, in some embodiments, a universal wheel is installed at the rear end of the frame, and the universal wheel cooperates with the wheel to facilitate the movement of the frame.

[0019] Optionally, in some embodiments, a push handle is fixedly connected to the rear end of the frame.

[0020] The technical solution provided by this application may have the following beneficial effects:

[0021] The present application can prepare the preparation on site through the preparation mechanism, saving time and effort; the stirring mechanism can ensure the uniformity of the preparation to prevent the leaves from being burned due to excessively high concentration, or the concentration from being too low, which affects the follow-up injection effect; and stirring can be achieved in the process of pushing the device to move, without providing an additional power source, which is convenient and practical; by setting up a continuously up and down swinging atomizing nozzle, not only can the spraying coverage be expanded, but also the front and back sides of the fruit tree leaves can be evenly adhered to the preparation, reducing dead angles of spraying, thereby improving the uniformity of the preparation on the leaves and ensuring the follow-up injection effect.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0024] Figure 1 It is a schematic diagram of the overall structure of this application;

[0025] Figure 2 It is a schematic diagram of the overall structure of this application from another perspective;

[0026] Figure 3It is a partial structural diagram of this application;

[0027] Figure 4 It is a cross-sectional view of the local structure of the present application;

[0028] Figure 5 It is a structural schematic diagram of the spraying mechanism of the present application;

[0029] Figure 6 This application Figure 5 Schematic diagram of the structure of the middle A area;

[0030] Figure 7 This application Figure 5 Schematic diagram of the structure of the middle B area;

[0031] Figure 8 It is a side view of the partial structure of the spraying mechanism of the present application.

[0032] Reference numerals:

[0033] 1-frame, 11-first bracket, 12-second bracket, 13-push handle, 14-limiting rod;

[0034] 2-dispensing mechanism, 21-water tank, 22-water pump, 221-first flow meter, 222-water inlet pipe, 23-liquid feeding mechanism, 231-base, 232-liquid storage tank, 233-liquid outlet pipe, 234-second flow meter, 235-first valve, 24-solid feeding mechanism, 241-fixed frame, 242-hopper, 243-second valve, 244-storage box, 245-weigher;

[0035] 3-stirring mechanism, 31-stirring tank, 32-top cover, 33-discharge pipe, 34-third valve, 35-liquid supply box, 36-rotating shaft, 37-first gear, 38-stirring blade, 39-boosting pump;

[0036] 4-spraying mechanism, 41-side frame, 42-vertical pole, 43-movable plate, 431-connecting rod, 44-atomizing nozzle, 45-hose, 46-liquid supply pipe, 47-sliding rod, 471-limiting column, 472-roller, 48-limiting frame, 49-spring;

[0037] 5-driving mechanism, 51-transmission shaft, 52-second gear, 53-wheel, 54-annular groove;

[0038] 6-Universal wheels. DETAILED DESCRIPTION

[0039] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0040] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0041] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] See also Figure 1-8 , a device for adding water to fruit trees in experimental fields, comprising:

[0044] The frame 1 is made of square steel welded and has a rectangular structure as a whole. In order to facilitate the placement or installation of other components on the frame 1, a thin steel plate is laid on the top surface of the frame 1. The first bracket 11 and the second bracket 12 are fixedly installed on the frame 1, and the top surface of the first bracket 11 is higher than the top surface of the second bracket 12, so as to facilitate the use of gravity for feeding;

[0045] The mixing mechanism 2 is installed at the first bracket 11, and quantitative feeding can be performed through the mixing mechanism 2, so as to ensure that the concentration and dosage of the prepared preparation meet the use requirements;

[0046] Stirring mechanism 3; the stirring mechanism 3 is installed at the second bracket 12, and the stirring mechanism 3 is connected to the dispensing mechanism 2. The stirring mechanism 3 can stir the material supplied by the dispensing mechanism 2 evenly to ensure the uniformity of the preparation, avoid too high concentration of the preparation, burn the leaves of the fruit tree, or too low concentration of the preparation, affect the effect of the follow-up injection;

[0047] Spraying mechanism 4; The spraying mechanism 4 is installed on the frame 1, and the spraying mechanism 4 is connected to the stirring mechanism 3. The spraying mechanism 4 includes a vertical rod 42, a movable plate 43, an atomizing nozzle 44, and a sliding rod 47. A side frame 41 is fixedly connected to the side of the front end of the frame 1. A vertical rod 42 is fixedly arranged on the side frame 41. A plurality of movable plates 43 are hingedly installed on the vertical rod 42 at equal intervals. The movable plate is eccentrically hinged. With the hinge as the boundary, one end of the movable plate 43 is longer than the hinge point, and the other end is shorter, so that in a natural state, the movable plate 43 will naturally fall to the longer end under the action of gravity. The number of movable plates 43 can be increased or decreased according to demand. In this embodiment, four movable plates 43 are provided, and the movable plates 43 are connected by connecting rods 431, and each movable plate 43 is hingedly connected to the connecting rod 431, so that the movement trend of each movable plate 43 remains consistent. Atomizing nozzles 44 are fixedly mounted on each movable plate 43. When the movable plate 43 rotates, the atomizing nozzles 44 can be driven to rotate together, thereby changing the spraying direction of the atomizing nozzles 44, preventing the atomizing nozzles 44 from always spraying the preparation in the same direction, and expanding the preparation coverage. In order to control the regular movement of the movable plate 43, a slide bar 47 corresponding to the lowest movable plate 43 is also installed on the frame 1. The slide bar 47 can be driven to reciprocate vertically through the driving mechanism 5, and then the movable plate 43 is lifted back and forth, so that the movable plate 43 is continuously rotated along its hinge, so that the spraying direction of the atomizing nozzle 44 is continuously and regularly changed.

[0048] Among them, the driving mechanism 5 includes a transmission shaft 51 and a wheel 53. The transmission shaft 51 is rotatably installed at the bottom of the front end of the frame 1, and both ends of the transmission shaft 51 are fixedly connected to the wheels 53. An eccentrically arranged annular groove 54 is opened on the side of the wheel 53 on the side where the spraying mechanism 4 is installed.

[0049] See also Figure 5-8 A limiting frame 48 is fixedly connected to the side frame 41, and the slide rod 47 is slidably connected in the limiting frame 48. The limiting frame 48 allows the slide rod 47 to only slide up and down vertically. A limiting column 471 is provided at one end of the slide rod 47, and the limiting column 471 is slidably connected in the annular groove 54. The other end of the slide rod 47 is provided with a roller 472 corresponding to the lowest movable plate 43.

[0050] When in use, the frame 1 is pushed to rotate the wheel 53, driving the limiting column 471 to slide in the annular groove 54, so that the slide bar 47 makes a reciprocating motion vertically. When the limiting column 471 is located at the lowest point in the annular groove 54, the slide bar 47 is at the lowest height. At this time, the movable plate 43 is in contact with the slide bar 47 at one end lower and the other end higher, so that the nozzle of the atomizing nozzle 44 is tilted upward to spray the back of the fruit tree leaves; when the limiting column 471 moves from the lowest point to the highest point of the annular groove 54, the slide bar 47 gradually rises, and the end of the movable plate 43 in contact with the slide bar 47 is gradually lifted up, until the limiting column 471 reaches the highest point, the end of the movable plate 43 in contact with the slide bar 47 is pushed to the highest point. At this time, the movable plate 43 is in contact with the slide bar 47 at one end higher and the other end lower, so that the nozzle of the atomizing nozzle 44 is tilted downward to spray the front of the fruit tree leaves. Furthermore, when in use, with the fruit tree to be followed up with injection as the center, the staff pushes the device to move around the fruit tree, thereby spraying the fruit tree in all directions, ensuring the uniformity of the spraying of the preparation, thereby ensuring the effect of the follow-up injection.

[0051] It should be noted that the method of relying solely on gravity to make the movable plate 43 close to the roller 472 is not stable enough during operation, which may easily cause the movable plate 43 to not rotate properly, affecting the effect of the drug injection. Therefore, in some embodiments, a spring 49 is connected between the limit frame 48 and the bottom movable plate 43, and the spring 49 is always in a stretched state. The spring 49 can keep the roller 472 and the bottom movable plate 43 in close contact, so that the movable plate 43 and the slide rod 47 can keep moving synchronously.

[0052] See also Figure 2 , 4 The stirring mechanism 3 includes a rotating shaft 36 and stirring blades 38. A limit rod 14 is welded and fixed on the frame 1. The rotating shaft 36 is rotatably mounted on the limit rod 14 along the vertical axis, thereby ensuring the stability of the rotating shaft 36 during rotation. A first gear 37 is fixedly connected to the bottom end of the rotating shaft 36, and a second gear 52 meshing with the first gear 37 is fixedly connected to the transmission shaft 51. The rotating shaft 36 can be driven to rotate through the transmission shaft 51, and the stirring blades 38 corresponding to the stirring tank 31 are fixedly mounted on the top of the rotating shaft 36. When the frame 1 is pushed to move, the wheel 53 will drive the transmission shaft 51 to rotate, thereby driving the rotating shaft 36 to rotate, and then the stirring blades 38 will stir and mix the materials in the stirring tank 31.

[0053] Since the rotating shaft 36 needs to pass through the mixing tank 31, the method of using a seal to seal the contact position between the rotating shaft 36 and the mixing tank 31 is feasible, but this will increase the manufacturing cost and maintenance cost, and it is difficult to ensure the sealing effect after long-term use. Therefore, in some embodiments, the mixing tank 31 is a U-shaped structure with a through hole at the center, which is not only convenient for the rotating shaft 36 to pass through, but also can cooperate with the limit rod 14 to position the rotating shaft 36, reducing the radial shaking of the rotating shaft 36 when rotating. The bottom of the mixing tank 31 is connected to the liquid supply box 35 through the discharge pipe 33. The liquid supply box 35 is used to temporarily store the evenly stirred preparation, thereby freeing up space in the mixing tank 31 to facilitate the mixing tank 31 to mix the preparation next time. A third valve 34 is installed on the discharge pipe 33. The third valve 34 only needs to realize the opening and closing function and does not need to control the flow rate. A solenoid valve or a manual valve can be selected. The outlet of the liquid supply box 35 is connected to the liquid supply pipe 46 through a booster pump 39. The liquid supply pipe 46 is connected to a hose 45 corresponding to the atomizing nozzle 44 one by one.

[0054] See also Figure 1-3 The mixing mechanism 2 includes a water pump 22, a liquid feeding mechanism 23, and a solid feeding mechanism 24. The water pump 22 is fixedly installed on the first bracket 11, and a water tank 21 is fixedly installed on the frame 1. One end of the water pump 22 is connected to the water tank 21 through a pipeline, and the other end is connected to the stirring tank 31 through a water inlet pipe 222. A first flow meter 221 is also installed on the water inlet pipe 222, and the water supply is monitored by the first flow meter 221; a liquid feeding mechanism 23 and a solid feeding mechanism 24 are also installed on the first bracket 11. The liquid feeding mechanism 23 is used to hold liquid preparation raw materials, and the solid feeding mechanism 24 is used to hold granular or powdered solid preparation raw materials.

[0055] The liquid feeding mechanism 23 includes a base 231, a liquid storage tank 232, and a liquid outlet pipe 233. The base 231 is a triangular structure, and the side close to the stirring tank 31 is lower, and the side away from the stirring tank 31 is higher. The liquid storage tank 232 is placed on the base 231, and the lower side of the liquid storage tank 232 is connected to the stirring tank 31 through the liquid outlet pipe 233. A second flow meter 234 and a first valve 235 are also provided on the liquid outlet pipe 233. The supply amount of the liquid raw material is monitored by the second flow meter 234, and the opening and closing of the liquid outlet pipe 233 is controlled by the first valve 235. Among them, the second flow meter 234 uses an electronic flow meter, and the first valve 235 uses an electromagnetic valve. The second flow meter 234 and the first valve 235 are both connected to the controller, and the connection method and control method are conventional technologies in this field, which will not be repeated here. When in use, by setting the supply amount of the liquid raw material, the controller opens the first valve 235, and when the supply amount reaches the required value, the controller closes the first valve 235. It should be noted that the installation height of the base 231 is higher than the height of the feeding position of the stirring tank 31 , so that the liquid in the liquid storage tank 232 can automatically flow into the stirring tank 31 .

[0056] The solid feeding mechanism 24 includes a fixed frame 241, a hopper 242, a storage box 244, and a weighing device 245. The fixed frame 241 is fixedly installed on the first bracket 11. The hopper 242 is fixedly connected to the fixed frame 241, and a second valve 243 is arranged at the discharge port of the hopper 242. The second valve 243 only needs to realize the opening and closing function, and there is no need to control the flow rate. A solenoid valve or a manual valve can be selected. A weighing device 245 is also installed on the fixed frame 241, and a storage box 244 corresponding to the discharge port of the hopper 242 is placed on the weighing device 245. When in use, the second valve 243 is opened, and the solid raw materials slide from the hopper 242 to the storage box 244 under the action of gravity and are weighed by the weighing device 245. If there is too much solid raw material, the excess part can be poured back into the hopper 242. When the weight reaches the required amount, the second valve 243 is closed, and the worker opens the top cover 32 of the mixing tank 31 and pours the solid raw materials into it.

[0057] A universal wheel 6 is also installed at the rear end of the frame 1. The universal wheel 6 cooperates with the wheel 53 to facilitate the movement of the frame 1, and the universal wheel 6 facilitates the staff to control the frame 1 to turn. Further, a push handle 13 is also fixedly connected to the rear end of the frame 1.

[0058] Specific working process:

[0059] Solid raw materials are added to the hopper, liquid raw materials are added to the liquid storage tank 232, and clean water is added to the water tank 21. The three are quantitatively added to the mixing tank 31 according to the needs, and the frame 1 is pushed to move to the fruit tree to be injected. During the movement, the wheel 53 will drive the rotating shaft 36 to rotate continuously, so that the materials in the mixing tank 31 are mixed evenly through the stirring blade 38. At the same time, it can also prevent the uneven concentration distribution of the preparation in the mixing tank 31 after a long period of static, thereby ensuring the uniformity of the preparation. After arriving at the fruit tree to be injected, the third valve 34 is opened to discharge the preparation in the mixing tank 31 into the liquid supply tank 35, and the preparation required for subsequent injection is reconfigured, and the booster pump is started to spray the preparation in the liquid supply tank 35 from the atomizing nozzle 44, and the frame 1 is pushed to move around the fruit tree. During the movement, not only can the preparation required for subsequent use be stirred, but also, driven by the slide bar 47, the atomizing nozzle 44 can change the spraying direction regularly, thereby ensuring the uniformity of spraying and completing the injection operation.

[0060] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A device for additional injection of fruit trees in experimental fields, characterized in that: include Rack (1); A mixing mechanism (2), wherein the mixing mechanism (2) is mounted on the frame (1), and quantitative feeding can be performed through the mixing mechanism (2), thereby ensuring that the concentration and dosage of the prepared preparation meet the use requirements; A stirring mechanism (3); the stirring mechanism (3) is mounted on the frame (1), and the stirring mechanism (3) is connected to the mixing mechanism (2), and the material supplied by the mixing mechanism (2) can be evenly stirred by the stirring mechanism (3); A spraying mechanism (4); the spraying mechanism (4) is mounted on a frame (1), and the spraying mechanism (4) is connected to a stirring mechanism (3). The spraying mechanism (4) comprises a vertical rod (42), a movable plate (43), an atomizing nozzle (44), and a sliding rod (47). A plurality of movable plates (43) are hingedly mounted on the vertical rod (42) at equal intervals. The movable plates (43) are connected by connecting rods (431) so that the movement trends of the movable plates (43) are consistent. The atomizing nozzle (44) is fixedly mounted on the movable plates (43). The frame (1) is also equipped with a sliding rod (47) corresponding to the lowest movable plate. The driving mechanism (5) can drive the sliding rod (47) to reciprocate vertically, thereby lifting the movable plate (43) back and forth, so that the movable plate (43) is continuously rotated along its hinge, thereby causing the spraying direction of the atomizing nozzle (44) to continuously change.

2. The additional injection device for fruit trees in experimental fields according to claim 1, characterized in that: The driving mechanism (5) comprises a transmission shaft (51) and a wheel (53); the transmission shaft (51) is rotatably mounted on the bottom of the frame (1); and both ends of the transmission shaft (51) are fixedly connected to the wheels (53); and an eccentrically arranged annular groove (54) is provided on the side of the wheel (53) on the side where the spraying mechanism (4) is mounted.

3. The additional injection device for fruit trees in experimental fields according to claim 2, characterized in that: The frame (1) is fixedly connected to a limit frame (48), the slide bar (47) is slidably connected in the limit frame (48), one end of the slide bar (47) is provided with a limit column (471), the limit column (471) is slidably connected in the annular groove (54), and the other end of the slide bar (47) is provided with a roller (472) corresponding to the bottom movable plate (43), and a spring (49) is further connected between the limit frame (48) and the bottom movable plate (43), and the spring (49) can ensure that the roller (472) and the bottom movable plate (43) are always in close contact.

4. The additional injection device for fruit trees in experimental fields according to claim 2, characterized in that: The stirring mechanism (3) comprises a rotating shaft (36) and a stirring blade (38). The rotating shaft (36) is rotatably mounted on the frame (1) along a vertical axis. A first gear (37) is fixedly connected to the bottom end of the rotating shaft (36). A second gear (52) meshing with the first gear (37) is fixedly connected to the transmission shaft (51). The rotating shaft (36) can be driven to rotate via the transmission shaft (51). A stirring blade (38) corresponding to the stirring tank (31) is fixedly mounted on the top end of the rotating shaft (36).

5. The additional injection device for fruit trees in experimental fields according to claim 4, characterized in that: The stirring tank (31) is in a U-shaped structure, and the rotating shaft (36) passes through the center position of the stirring tank (31). The bottom of the stirring tank (31) is connected to a liquid supply box (35) through a discharge pipe (33), and a third valve (34) is installed on the discharge pipe (33). The outlet of the liquid supply box (35) is connected to a liquid supply pipe (46) through a booster pump (39), and the liquid supply pipe (46) is connected to a hose (45) corresponding to the atomizing nozzle (44) one by one.

6. The additional injection device for fruit trees in experimental fields according to claim 5, characterized in that: The mixing mechanism (2) comprises a water pump (22), a liquid feeding mechanism (23), and a solid feeding mechanism (24); the water pump (22) is fixedly mounted on the frame (1); one end of the water pump (22) is connected to a water tank (21), and the other end is connected to a stirring tank (31) via a water inlet pipe (222); a first flow meter (221) is also mounted on the water inlet pipe (222); the liquid feeding mechanism (23) and the solid feeding mechanism (24) are also mounted on the frame (1).

7. The additional injection device for fruit trees in experimental fields according to claim 6, characterized in that: The liquid supply mechanism (23) comprises a base (231), a liquid storage tank (232), and a liquid outlet pipe (233). The base (231) is a triangular structure, with a side close to the stirring tank (31) being lower and a side away from the stirring tank (31) being higher. The liquid storage tank (232) is placed on the base (231), and the lower side of the liquid storage tank (232) is connected to the stirring tank (31) via the liquid outlet pipe (233). A second flow meter (234) and a first valve (235) are also arranged on the liquid outlet pipe (233); wherein the installation height of the base (231) is higher than that of the stirring tank (31), so that the liquid in the liquid storage tank (232) can automatically flow into the stirring tank (31).

8. The additional injection device for fruit trees in experimental fields according to claim 6, characterized in that: The solid feeding mechanism (24) comprises a fixed frame (241), a hopper (242), a storage box (244), and a weighing device (245); the hopper (242) is fixedly mounted on the frame (1) via the fixed frame (241), and a second valve (243) is provided at the discharge port of the hopper (242); a weighing device (245) is also installed on the fixed frame (241), and a storage box (244) corresponding to the discharge port of the hopper (242) is placed on the weighing device (245).

9. The additional injection device for fruit trees in experimental fields according to claim 2, characterized in that: A universal wheel (6) is installed at the rear end of the frame (1), and the frame (1) can be easily moved by the cooperation between the universal wheel (6) and the wheel (53).

10. The additional injection device for fruit trees in experimental fields according to claim 9, characterized in that: The rear end of the frame (1) is fixedly connected with a push handle (13).

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