Large-lift plant protection air-assisted spraying machine

Abstract

The large-lift plant protection air supply sprayer comprises a front wind tower box and a rear wind tower box which are oppositely and fixedly arranged, a left upper air supply opening is formed in the upper portion of the left side of the front wind tower box, a right lower air supply opening is formed in the lower portion of the right side of the front wind tower box, a left lower air supply opening is formed in the lower portion of the left side of the rear wind tower box, and a right upper air supply opening is formed in the upper portion of the right side of the rear wind tower box. The left upper air supply outlet and the left lower air supply outlet form left side comprehensive air supply, and the right upper air supply outlet and the right lower air supply outlet form right side comprehensive air supply; a front draught fan is installed on the front side wall of the front wind tower box, and a rear draught fan is installed on the rear wind tower box. The air supply capacity is high, the spraying lift is large, and spraying on the two sides is even.

Description

Technical Field

[0001] The utility model relates to a sprayer, in particular to a large-lift air-conveying sprayer for plant protection. Background Art

[0002] Air-blast plant protection sprayers primarily use fan wind power to spread spray from the nozzle onto plants. They are widely used in fields such as large-scale orchard pesticide application and are currently the sprayers with the best spraying effects. Patents such as "A Dual-Air-Channel Orchard Sprayer Device" with publication number "CN103891698B" and "A Trapezoidal Air-blast Electrostatic Sprayer for Orchards" with publication number "CN110393179B" are examples of this type of sprayer. However, in actual use, it has been found that most of these sprayers have a symmetrical structure, with relatively weak outlet wind force, a small spray lift, and differences in wind force and spray lift on both sides. This results in droplets mainly adhering to the sides of the plant when spraying large plants or plants with lush branches and leaves. The amount of spray in the middle of the plant is significantly less, and there is a difference in the sprayed area on both sides, which affects the spraying effect. For this reason, improvements to the sprayer are needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a large-lift plant protection air-conveying sprayer which has strong air supply capacity, large spray lift and uniform spraying on both sides.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a large-lift plant protection air-supply sprayer, comprising a relatively fixed front wind tower box and a rear wind tower box, the upper left side of the front wind tower box is provided with an upper left air supply port and the lower right side is provided with a lower right air supply port, the lower left side of the rear wind tower box is provided with a lower left air supply port and the upper right side is provided with an upper right air supply port, the upper left air supply port and the lower left air supply port form a full air supply on the left side, and the upper right air supply port and the lower right air supply port form a full air supply on the right side; a front fan is installed on the front side wall of the front wind tower box, and a rear fan is installed on the rear wind tower box.

[0005] As an optimal technical solution, a front upper guide plate is provided in the front wind tower box between the upper edge of the upper left air supply outlet and the upper edge of the lower right air supply outlet, and a front lower guide plate is provided in the front wind tower box between the lower edge of the upper left air supply outlet and the lower edge of the lower right air supply outlet.

[0006] As an optimal technical solution, a rear upper guide plate is provided in the rear wind tower box between the upper edge of the lower left air supply outlet and the upper edge of the upper right air supply outlet, and a rear lower guide plate is provided in the front wind tower box between the lower edge of the lower left air supply outlet and the lower edge of the upper right air supply outlet.

[0007] As an optimal technical solution, a number of wind gathering partition structures are respectively provided at the upper left air supply outlet, the lower right air supply outlet, the lower left air supply outlet and the upper right air supply outlet, and wind gathering air supply outlets are formed between adjacent wind gathering partition structures. The cross-section of the wind gathering air supply outlets is gradually reduced from the inside to the outside.

[0008] As a preferred technical solution, the inner end of the wind-gathering partition structure is integrally connected with a wind-gathering guide plate extending inward.

[0009] As an optimal technical solution, the rear side wall of the front wind tower box also serves as the front side wall of the rear wind tower box.

[0010] As a preferred technical solution, spray assemblies are respectively provided at the upper left air supply outlet, the lower right air supply outlet, the lower left air supply outlet and the upper right air supply outlet.

[0011] As a preferred technical solution, the front fan and the rear fan are both axial flow fans, and the rotation directions of the blades of the front fan and the rear fan are opposite.

[0012] As a preferred technical solution, the fan blade shafts of the front fan and the rear fan are coaxially arranged, and a reversing transmission is provided between the fan blade shafts of the front fan and the rear fan.

[0013] Due to the adoption of the above technical solution, a large-lift plant protection air-supply sprayer includes a relatively fixed front wind tower box and a rear wind tower box, wherein the upper left portion of the front wind tower box is provided with an upper left air supply port and the lower right portion is provided with a lower right air supply port, and the lower left portion of the rear wind tower box is provided with a lower left air supply port and the upper right portion is provided with an upper right air supply port, the upper left air supply port and the lower left air supply port form a full left air supply, and the upper right air supply port and the lower right air supply port form a full right air supply; a front fan is installed on the front side wall of the front wind tower box, and a rear fan is installed on the rear wind tower box. The utility model provides two wind tower boxes and arranges them front and back, with independent airflow in each wind tower box and an oblique airflow channel formed inside. The windflow is supplied to the middle of the windflow channel by a fan, and the windflow flows along the channel directly to the air supply ports at both ends to form an outlet. This structure allows the airflow toward the air outlet to easily follow the direction of the air supply, making the airflow more concentrated and reducing wind resistance. Under the same power, the outlet wind force is greater, thus increasing the spray head. The air outlets on each side of the two wind tower boxes form full air supply coverage in the vertical direction, and both are a combination of upward and downward airflow from their respective fans, so the spray is evenly distributed on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 yes Figure 1 Schematic diagram of AA structure;

[0017] Figure 3 yes Figure 1 Schematic diagram of BB structure;

[0018] Figure 4 It is a structural principle diagram of the reversing transmission of two fans in an embodiment of the present utility model.

[0019] In the figure: 1-front wind tower box; 11-upper left air supply outlet; 12-lower right air supply outlet; 13-front upper guide plate; 14-front lower guide plate; 2-rear wind tower box; 21-lower left air supply outlet; 22-upper right air supply outlet; 23-rear upper guide plate; 24-rear lower guide plate; 3-spray assembly; 4-front fan; 5-rear fan; 6-reversing drive; 7-wind gathering partition structure; 71-wind gathering air supply outlet; 72-wind gathering guide plate. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0021] like Figures 1 to 4 As shown together, the large-lift plant protection air-conveying sprayer includes a relatively fixed front wind tower box 1 and a rear wind tower box 2, and the spaces inside the two wind tower boxes are independent. The front wind tower box 1 is provided with an upper left air supply port 11 on the upper left side and a lower right air supply port 12 on the lower right side, and the rear wind tower box 2 is provided with a lower left air supply port 21 on the lower left side and an upper right air supply port 22 on the upper right side. As a result, oblique air flow channels are formed in the front wind tower box 1 and the rear wind tower box 2, and the air flow channels in the two wind tower boxes form an approximately X-shape in the front-to-back direction.

[0022] Preferably, a front upper deflector 13 is provided in the front wind tower box 1 between the upper edge of the upper left air supply port 11 and the upper edge of the lower right air supply port 12, and a front lower deflector 14 is provided in the front wind tower box 1 between the lower edge of the upper left air supply port 11 and the lower edge of the lower right air supply port 12, thereby forming a smoother air flow channel in the front wind tower box 1, which is conducive to reducing resistance along the way and promoting improved wind power utilization. Similarly, a rear upper deflector 23 is provided in the rear wind tower box 2 between the upper edge of the lower left air supply port 21 and the upper edge of the upper right air supply port 22, and a rear lower deflector 24 is provided in the front wind tower box 1 between the lower edge of the lower left air supply port 21 and the lower edge of the upper right air supply port 22.

[0023] The "front", "back", "left", "right", "up" and "down" involved in this embodiment are all defined to adapt to the front, back, left, right, up and down positions of the equipment during operation. The purpose is to provide a clearer explanation of the structural principles of this embodiment, and is not to limit the scope of protection.

[0024] The upper left air supply port 11 and the lower left air supply port 21 form full air supply on the left side, and the upper right air supply port 22 and the lower right air supply port 12 form full air supply on the right side. Full air supply here does not mean that the air supply ports must be continuous in the up and down directions, but means that the upper and lower air supply ports enable the upper and lower spray ranges on this side to be continuous.

[0025] A front fan 4 is installed on the front side wall of the front wind tower box 1, and a rear fan 5 is installed on the rear wind tower box 2. For the upper and lower guide plates set in each wind tower box in this embodiment, each fan is basically located near the middle of the airflow channel between the corresponding upper and lower guide plates.

[0026] Conventionally, a spray assembly 3 is provided at the upper left air outlet 11, the lower right air outlet 12, the lower left air outlet 21, and the upper right air outlet 22, respectively. The spray assembly 3 includes a spray head, and the droplets sprayed by the spray head are sprayed on the relevant plants by wind. The spray assembly 3 is well known in the art and will not be described in detail here.

[0027] Preferably, the front blower 4 and the rear blower 5 are both axial flow fans, and the blades of the front blower 4 and the rear blower 5 are arranged in opposite directions of rotation. The airflow blown into the corresponding wind tower box by the axial flow fan has a certain rotation direction. In this embodiment, each wind tower box is separately equipped with a blower. The airflow blown into the blower in each wind tower box does not have wind interference, that is, the airflow is independent, and the oblique air flow channels in each wind tower box allow the blown airflow with a rotation direction to be ejected toward the air outlets at both ends along the air flow channel, with little resistance along the way and concentrated airflow. Under the same power, the wind force out of the air outlet is greater and the spray head is large. The two wind tower boxes use the upper and lower air outlets on each side to form a comprehensive air supply combination, so that each side can form a comprehensive large-head spray in the upper and lower directions. Since the spray on both sides is composed of upper and lower sprays, and the airflow in the front and rear wind tower boxes 2 is basically symmetrical, the spray intensity on both sides is basically equal and the spray is uniform.

[0028] Preferably, the blade shafts of the front fan 4 and the rear fan 5 are coaxially arranged, and a reversing transmission 6 is provided between the blade shafts of the front fan 4 and the rear fan 5. The reversing transmission 6 is used to achieve the purpose of the two fans rotating in opposite directions, and the positions of the two fans are formed to be equal in their respective airflow channel positions, which is further conducive to equal spray intensity on both sides and promotes uniform spraying on both sides. In addition, the two fans share one power, which is conducive to simplifying the power structure layout. Among them, the reversing transmission 6 adopts bevel gears installed at the proximal ends of the blade shafts of the two fans, and an intermediate bevel gear that is constantly meshed with these two bevel gears is installed in the reversing transmission 6, which can achieve the purpose of constant speed reverse transmission.

[0029] Preferably, the rear side wall of the front wind tower box 1 also serves as the front side wall of the rear wind tower box 2, so that the upper and lower air supply outlets on each side are basically close to each other, and the upper and lower air supply outlets on each side approximately form a line. During operation, a wind force can be formed in the upper and lower directions, and the branches and leaves of the plant in a certain vertical direction can be blown and sprayed at the same time. Based on its high wind force and large lift, large plants or plants with lush branches and leaves can be fully sprayed inside and outside, and the spraying effect is good.

[0030] Preferably, a plurality of air-collecting partition structures 7 are provided at the upper left air outlet 11, the lower right air outlet 12, the lower left air outlet 21, and the upper right air outlet 22. Air-collecting air outlets 71 are formed between adjacent air-collecting partition structures 7. The cross-section of each air-collecting air outlet 71 gradually decreases from the inside to the outside. This further enhances the strength of the wind force at each air outlet, thereby further increasing the spray force and lift while ensuring full coverage in the upper and lower directions.

[0031] Preferably, the inner end of the wind-collecting partition structure 7 is integrally connected to an inwardly extending wind-collecting guide plate 72, and adjacent wind-collecting guide plates 72 form a wind-collecting guide channel. The provision of the wind-collecting guide plates 72 allows the wind-collecting outlets 71 that are farther away from their respective fans to be smoothly distributed with the desired wind force, thereby promoting reasonable wind force distribution at each wind-collecting outlet 71.

[0032] 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 merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. High-lift air-assisted plant protection sprayer, characterized by: It includes a relatively fixed front wind tower box and a rear wind tower box, the upper left part of the front wind tower box is provided with an upper left air supply port and the lower right part is provided with a lower right air supply port, the lower left part of the rear wind tower box is provided with a lower left air supply port and the upper right part is provided with an upper right air supply port, the upper left air supply port and the lower left air supply port form a full air supply on the left side, and the upper right air supply port and the lower right air supply port form a full air supply on the right side; a front fan is installed on the front side wall of the front wind tower box, and a rear fan is installed on the rear wind tower box.

2. The high-lift air-assisted plant protection sprayer according to claim 1, characterized in that: A front upper guide plate is provided in the front wind tower box between the upper edge of the upper left air supply port and the upper edge of the lower right air supply port, and a front lower guide plate is provided in the front wind tower box between the lower edge of the upper left air supply port and the lower edge of the lower right air supply port.

3. The high-lift air-assisted plant protection sprayer according to claim 1, characterized in that: A rear upper guide plate is provided in the rear wind tower box between the upper edge of the lower left air supply port and the upper edge of the upper right air supply port, and a rear lower guide plate is provided in the front wind tower box between the lower edge of the lower left air supply port and the lower edge of the upper right air supply port.

4. The high-lift air-assisted plant protection sprayer according to claim 1, characterized in that: A plurality of wind gathering partition structures are respectively provided at the upper left air supply outlet, the lower right air supply outlet, the lower left air supply outlet and the upper right air supply outlet, and wind gathering air supply outlets are formed between adjacent wind gathering partition structures. The cross section of the wind gathering air supply outlets is gradually reduced from the inside to the outside.

5. The high-lift air-assisted plant protection sprayer according to claim 4, characterized in that: The inner end of the wind-gathering partition structure is integrally connected with a wind-gathering guide plate extending inward.

6. The high-lift air-assisted plant protection sprayer according to claim 1, characterized in that: The rear side wall of the front wind tower box also serves as the front side wall of the rear wind tower box.

7. The high-lift air-assisted plant protection sprayer according to claim 1, characterized in that: The upper left air supply port, the lower right air supply port, the lower left air supply port and the upper right air supply port are respectively provided with spray assemblies.

8. The high-lift air-assisted plant protection sprayer according to claim 1, characterized in that: The front fan and the rear fan are both axial flow fans, and the rotation directions of the blades of the front fan and the rear fan are opposite.

9. The high-lift air-assisted plant protection sprayer according to claim 8, characterized in that: The fan blade rotating shafts of the front fan and the rear fan are coaxially arranged, and a reversing transmission is provided between the fan blade rotating shafts of the front fan and the rear fan.

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