Three-layer adjustable stepped centrifugal variable nozzle

Abstract

The invention discloses a three-layer adjustable stepped centrifugal variable spray head, and relates to the field of pesticide spraying, in particular to a centrifugal spray head device. Comprising a first-layer spraying opening, a second-layer spraying opening, a third-layer spraying opening, an electric push rod, a rotating shaft, a spraying core and a motor, the motor is a hollow shaft motor, the second-layer spraying opening and the third-layer spraying opening are provided with step-shaped structures, the second-layer spraying opening and the third-layer spraying opening and the first-layer spraying opening are connected to the electric push rod, the bottom end of the rotating shaft is connected with the spraying core, and the top end of the rotating shaft is connected with the motor. According to the technical scheme, the stepped structure is matched with the field environment with straw coverage and soil fertility difference after returning to the field, precise application of a decomposition agent, pesticide and chemical fertilizer is achieved through the centrifugal variable function, the problems that in the returning technology, spraying efficiency is low and nutrient matching is poor are solved, and the project is assisted to achieve the purposes of pesticide reducing, weight losing and environmental protection.

Description

Technical Field

[0001] This invention relates to the field of pesticide spraying, and more particularly to a centrifugal variable nozzle device adapted to the complex field environment after agricultural waste is returned to the field. Background Technology

[0002] With the development of the agricultural circular economy, agricultural waste return technology has become a core means to improve soil fertility. However, the field environment after return is unique: uneven distribution of waste leads to significant differences in soil fertility, the straw mulch layer on the surface changes the traditional field structure, and auxiliary substances such as composting agents and biological pesticides need to be sprayed, which significantly increases the requirements for the accuracy and adaptability of pesticide application.

[0003] Precision variable-rate application technology is a key direction for meeting this demand. Among them, centrifugal variable-rate nozzles use a high-speed rotating motor to atomize the pesticide solution. By adjusting the rotation speed and flow rate, variable-rate spraying can be achieved, which can solve the problem of low pesticide utilization rate of constant-volume spraying and is an important supporting equipment for the implementation of the return-to-field technology. However, existing centrifugal variable-rate nozzles cannot automatically adjust the spraying area. They can only be changed manually by changing the nozzle, which is cumbersome and difficult to adapt to scenarios with uneven fertility and large surface differences after returning to the field. For example, the spraying range needs to be expanded in areas with dense straw, while the spraying amount needs to be reduced in areas with rich nutrients. Traditional equipment cannot dynamically adapt, which restricts the nutrient utilization efficiency and ecological benefits of the return-to-field technology.

[0004] Therefore, it is necessary to design a three-layer adjustable stepped centrifugal variable nozzle to solve the problem that existing equipment cannot automatically adapt to the complex field environment after returning the soil to the field, and to provide support for the efficient implementation of the returning soil technology. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a three-layer adjustable stepped centrifugal variable spraying device to solve the problem that the existing centrifugal variable nozzles cannot automatically adjust the spraying area.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A three-layer adjustable stepped centrifugal variable nozzle, characterized in that it includes a first-layer spray nozzle, a second-layer spray nozzle, a third-layer spray nozzle, an electric push rod, a rotating shaft, a spray core, and a motor. The motor is a hollow shaft motor. The first-layer, second-layer, and third-layer spray nozzles are respectively connected to the electric push rod. The interiors of the second-layer and third-layer spray nozzles are stepped. The electric push rod has two telescopic mechanisms. The bottom end of the rotating shaft is connected to the spray core, and the top end is connected to the motor. The spray core has a flow guiding mechanism inside, which contains several fan-shaped blades and flow guiding cylinders. The flow guiding mechanism is connected to several water outlets.

[0008] The working principle of this technical solution is as follows:

[0009] The self-designed spray nozzle has three layers with a unique stepped structure. The first layer has the smallest radius, the second layer has a medium radius, and the third layer has the largest radius. Initially, the first layer spray nozzle is normally open, with the nozzle rotating to create a water droplet spray that passes through and is applied to the ground. When switched to the second setting, the electric actuator extends and retracts, bringing the connected first-layer spray nozzle to the second layer. Due to the stepped structure, this ensures a perfect fit, increasing the amount of pesticide sprayed and the sprayed area. The third setting works on a similar principle: the electric actuator extends and retracts, bringing the previously connected first and second-layer spray nozzles to the third layer, achieving a perfect fit and maximizing the amount of pesticide sprayed and the sprayed area.

[0010] The technical effects achieved by this invention are as follows:

[0011] (1) Under the action of the electric push rod, the first and second layer spray nozzles are driven to extend and retract upwards, realizing automatic adjustment of the spraying area. (2) The spray nozzles are set with a special stepped structure, so that the spray nozzles of each layer can be tightly connected, ensuring that the gaps at the joints do not affect the normal working state of the nozzles. (3) The spray nozzles are set with three adjustable levels. As the spray nozzle level increases, the amount of liquid sprayed and the spraying area increase, and the droplet size decreases, adapting to people's needs in different situations. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural diagram;

[0014] Figure 2 for Figure 1 A sectional view;

[0015] Figure 3 for Figure 1 The schematic diagram of the nozzle 3 structure is shown below;

[0016] Figure 4 for Figure 1 A cross-sectional view of the two-layer spray nozzle 5 shown;

[0017] Figure 5 for Figure 1 A cross-sectional view of the three-layer spray nozzle 6 shown;

[0018] In the diagram: 1. Hollow shaft motor; 2. Electric push rod; 3. Spray core; 4. First-layer spray nozzle; 5. Second-layer spray nozzle; 6. Third-layer spray nozzle; 7. Rotating shaft; 8. Stepped structure (second-layer spray nozzle); 9. Stepped structure (third-layer spray nozzle); 10. Guide cylinder; 11. Fan-shaped slice; 12. Water outlet. Detailed Implementation

[0019] A three-layer adjustable stepped centrifugal variable nozzle, characterized in that it includes a first-layer spray nozzle 4, a second-layer spray nozzle 5, a third-layer spray nozzle 6, an electric push rod 2, a rotating shaft 7, a spray core 3, and a motor 1. The motor 1 is a hollow shaft motor. The first-layer spray nozzle 4, the second-layer spray nozzle 5, and the third-layer spray nozzle 6 are respectively connected to the electric push rod 2. The second-layer spray nozzle 5 and the third-layer spray nozzle 6 are both stepped inside. The electric push rod 2 has two layers of telescopic mechanisms. The bottom end of the rotating shaft 7 is connected to the spray core 3, and the top end is connected to the motor 1. The spray core 3 is provided with a flow guiding mechanism. The flow guiding mechanism is provided with a plurality of fan-shaped slices 11 and a flow guiding cylinder 10. The flow guiding mechanism is connected to a plurality of water outlets 12.

[0020] The working principle is as follows: The self-designed spray nozzle has three layers, with a special stepped structure. The first-layer spray nozzle 4 has the smallest radius, the second-layer spray nozzle 5 is medium, and the third-layer spray nozzle 6 has the largest radius. Initially, the first-layer spray nozzle 4 is normally open. The spray core 3 rotates to form water droplets, which are then sprayed onto the ground through the first-layer spray nozzle 4. When switched to the second setting, the electric push rod 2 extends and retracts, causing the first-layer spray nozzle 4 to attach to the second-layer spray nozzle 5. Due to the special stepped structure 8 of the second-layer spray nozzle 5, such as... Figure 4 As shown, the first-layer spray nozzle 4 fits perfectly onto the second-layer spray nozzle 5. As the pressure increases, the amount of pesticide sprayed increases, and the spraying area also increases. The third setting works on a similar principle: the electric push rod 2 extends and retracts, causing the previously connected first-layer and second-layer spray nozzles 4 and 5 to fit onto the third-layer spray nozzle 6. Due to the special stepped structure 9 of the third-layer spray nozzle 6, such as... Figure 5 As shown, the previously attached first-layer spray nozzle 4 and second-layer spray nozzle 5 are completely attached to the third-layer spray nozzle 6, resulting in the maximum amount of liquid sprayed and the maximum spray area.

[0021] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A three-layer adjustable stepped centrifugal variable nozzle, characterized in that, It includes a first-layer spray nozzle, a second-layer spray nozzle, a third-layer spray nozzle, an electric push rod, a rotating shaft, a spray core, and a motor. The motor is a hollow shaft motor. The first-layer spray nozzle, the second-layer spray nozzle, and the third-layer spray nozzle are respectively connected to the electric push rod. The electric push rod has two telescopic mechanisms. The bottom end of the rotating shaft is connected to the spray core, and the top end is connected to the motor.

2. The three-layer adjustable stepped centrifugal variable nozzle according to claim 1, characterized in that, The nozzle core is equipped with a flow guiding mechanism, which contains several fan-shaped blades and a flow guiding cylinder. The flow guiding mechanism is connected to several water outlets.

3. A three-layer adjustable centrifugal variable nozzle according to claim 1, characterized in that, The first-layer spray nozzle is a conventional spray nozzle, while the second and third-layer spray nozzles are both designed with a stepped structure inside.

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