Corn breeding, cultivation and spraying nozzle device

Abstract

The utility model relates to the technical field of corn breeding, concretely is corn breeding cultivation sprays nozzle device. Including infusion pipeline, the outside thread of infusion pipeline is installed with installation pipe, and the connecting place of installation pipe and infusion pipeline is installed with sealing ring, the outside of installation pipe is opened with air inlet through -hole, the one end of installation pipe is rotatably installed with the air cap of infusion pipeline, and the inside of air cap is installed with the impeller of axle center, the one end of installation pipe is threadedly installed with nozzle cap close to air cap, and the inside of nozzle cap is installed with the pressing plate, the inside of pressing plate is installed with spiral spring periphery, and the axle center of pressing plate is installed with the thimble, and the end of thimble is opened with drainage through -hole. After the spray is completed, the pressing plate resets under the drive of spiral spring, and the thimble contracts, and the thimble that contracts carries out the cleaning to nozzle cap, and the residual liquid medicine in nozzle cap and installation pipe can be discharged through drainage through -hole, and the crystallization blockage problem caused by residual liquid medicine can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of maize breeding technology, specifically to a nozzle device for spraying pesticides in maize breeding and cultivation. Background Technology

[0002] In corn breeding and seedling cultivation, precise, uniform, and safe pesticide spraying is crucial for ensuring seedling health and the accuracy of experimental data. Seedling spraying often involves wettable powders and suspensions, which are prone to settling. The nozzle orifices are tiny and highly susceptible to clogging. Although some nozzles are equipped with self-cleaning pins that clean the orifices during opening and closing, they are ineffective at removing residual pesticides from the nozzle's internal flow channels. The crystallization of residual pesticides after evaporation is the primary cause of chronic nozzle clogging.

[0003] There is an urgent need in the current technology for a spray nozzle device with highly efficient self-cleaning capabilities that can fundamentally prevent internal clogging. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a spray nozzle device for corn breeding and cultivation, which has a high degree of self-cleaning ability and can fundamentally prevent internal clogging.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a nozzle device for spraying pesticides in corn breeding and cultivation, comprising an infusion pipeline, an installation tube threaded on the outer side of the infusion pipeline, and a sealing ring installed at the connection between the installation tube and the infusion pipeline, an air inlet hole opened on the outer side of the installation tube, and a pinhole cap threaded on the upper part of the air inlet hole, a wind cap rotatably installed at the end of the installation tube away from the infusion pipeline, and an impeller installed at the axis of the wind cap, a nozzle cap threaded on the end of the installation tube near the wind cap, a pressure plate installed on the inner side of the nozzle cap, a helical spring circumferentially installed on the inner side of the pressure plate, and a pin installed at the axis of the pressure plate, with a drain hole opened at the end of the pin.

[0006] To facilitate air intake: As a further improvement to the above technical solution: there are two air inlet holes symmetrically arranged about the centerline of the mounting pipe.

[0007] The beneficial effects of this improvement are as follows: after the liquid medicine is delivered by the water pump and enters the installation pipe through the infusion pipeline, due to the Venturi effect, the gas mixes with the liquid medicine after passing through the pinhole cap and the air inlet. The symmetrically arranged air inlets can facilitate the atomization of the liquid medicine.

[0008] To facilitate the rotation of the hood: As a further improvement to the above technical solution: a sliding groove is provided on the mounting pipe near the wind cap, and the wind cap and the mounting pipe form a locking and rotating mounting structure through the sliding groove.

[0009] The beneficial effect of this improvement is that the rotation of the wind cap can be made more reliable and stable by using the slide groove.

[0010] To facilitate a more refined mixing of gas and liquid medicine: As a further improvement to the above technical solution: the wind cap is provided with a through hole in the circumferential direction.

[0011] As a further improvement to the above technical solution: the end of the impeller away from the wind cap is fixed to the mounting pipe by a support ring.

[0012] The beneficial effects of this improvement are: the mixture of gas and liquid is sheared and refined by the rotation of the wind cap and impeller, which can produce smaller and more uniform droplets; and the impeller rotation can be made more reliable and stable by the support ring.

[0013] To facilitate the ejection of the ejector pin: As a further improvement to the above technical solution: the pressure plate and the nozzle cap are arranged with their axes coincident.

[0014] As a further improvement to the above technical solution: a ring is provided in the middle part of the ejector pin.

[0015] The beneficial effects of this improvement are: the contact between the liquid medicine and the pressure plate and the ring, the liquid medicine pushes the pressure plate to squeeze the spiral spring, and the ejector pin extends out from the nozzle cap.

[0016] To facilitate the spraying of the medicine: As a further improvement to the above technical solution: the cross-section at the end of the ejector pin is set in a spindle shape.

[0017] The beneficial effects of this improvement are: the spindle-shaped ejector pin can facilitate cleaning of the nozzle cap, and the spindle-shaped ejector pin can cooperate with the nozzle cap to facilitate the liquid to be sprayed out through the gap between the ejector pin and the nozzle cap nozzle.

[0018] The beneficial effects of this utility model are as follows: 1. After the liquid medicine is delivered by the water pump and enters the installation pipe through the infusion pipeline, due to the Venturi effect, the gas mixes with the liquid medicine after passing through the pinhole cover and the air inlet. The liquid medicine passes through the impeller, which is driven by the water flow to rotate the air cap. The rotation of the air cap and the impeller performs secondary shearing and refining of the gas-liquid mixture, which can produce smaller and more uniform droplets.

[0019] 2. The liquid medicine comes into contact with the pressure plate and the ring. The liquid medicine pushes the pressure plate to squeeze the spiral spring. The ejector pin extends out from the nozzle cap. The liquid medicine can be sprayed out through the gap between the ejector pin and the nozzle cap nozzle, spraying onto the corn seedlings.

[0020] 3. After spraying is completed, the pressure plate is reset under the action of the spiral spring, and the ejector pin retracts accordingly. The retracted ejector pin cleans the nozzle cap. The residual liquid in the nozzle cap and the installation tube can be discharged through the drain hole, which can effectively avoid the problem of crystallization and blockage caused by residual liquid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall isometric structure.

[0022] Figure 2 This is a schematic diagram of the overall isometric exploded structure.

[0023] Figure 3 This is a schematic diagram of the overall isometric sectional view.

[0024] Figure 4 This is a schematic diagram of the overall main view sectional structure.

[0025] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Infusion pipeline; 2. Installation pipe; 21. Sealing ring; 22. Air inlet; 23. Needle cap; 24. Air cap; 25. Impeller; 3. Nozzle cap; 31. Pressure plate; 32. Helical spring; 33. Pin; 34. Drainage hole. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0028] like Figure 1-5As shown, a spray nozzle device for corn breeding and cultivation includes an infusion pipe 1. An installation pipe 2 is threaded onto the outer side of the infusion pipe 1, and a sealing ring 21 is installed at the connection between the installation pipe 2 and the infusion pipe 1. An air inlet hole 22 is opened on the outer side of the installation pipe 2, and a pinhole cap 23 is threaded onto the upper part of the air inlet hole 22. A wind cap 24 is rotatably installed at the end of the installation pipe 2 away from the infusion pipe 1, and an impeller 25 is installed at the axis of the wind cap 24. A nozzle cap 3 is threaded onto the end of the installation pipe 2 near the wind cap 24. Furthermore, a pressure plate 31 is installed on the inner side of the nozzle cap 3, and a helical spring 32 is installed circumferentially on the inner side of the pressure plate 31. A pin 33 is installed at the axis of the pressure plate 31, and a drain hole 34 is opened at the end of the pin 33. Two air inlets 22 are symmetrically arranged about the centerline of the mounting pipe 2. After the liquid medicine enters the mounting pipe 2 through the infusion pipe 1 under the delivery of the water pump, due to the Venturi effect, the gas mixes with the liquid medicine after passing through the pinhole cap 23 and the air inlets 22. The symmetrically arranged air inlets 22 can facilitate the atomization of the liquid medicine. A groove is provided near the air cap 24 on the mounting pipe 2, and the air cap 24 and the mounting pipe 2 are connected by the groove to form a locking and rotating mounting structure. The groove makes the rotation of the air cap 24 more reliable and stable. The air cap 24 has a through hole in the circumferential direction. The end of the impeller 25 away from the air cap 24 is fixed to the mounting pipe 2 by a support ring. The rotation of the air cap 24 and the impeller 25 performs secondary shearing and refining of the gas and liquid mixture, which can produce smaller and more uniform droplets. The support ring makes the rotation of the impeller 25 more reliable and stable. Reliable and stable, the pressure plate 31 and the nozzle cap 3 are arranged with their axes coincident. The middle part of the ejector pin 33 is provided with a ring. When the liquid medicine contacts the pressure plate 31 and the ring, the liquid medicine pushes the pressure plate 31 to squeeze the spiral spring 32, and the ejector pin 33 extends out from the nozzle cap 3. The end of the ejector pin 33 is designed with a spindle shape. The spindle-shaped ejector pin 33 can facilitate the cleaning of the nozzle cap 3, and the spindle-shaped ejector pin 33 can cooperate with the nozzle cap 3 to facilitate the liquid medicine to be sprayed out through the gap between the ejector pin 33 and the nozzle cap 3 nozzle.

[0029] The working principle of this invention is as follows: When using the device, the nozzle cap 3 is screwed onto the mounting tube 2, and then the mounting tube 2 is screwed onto the infusion pipe 1. The liquid medicine, transported by the water pump, enters the mounting tube 2 through the infusion pipe 1. Due to the Venturi effect, the gas mixes with the liquid medicine after passing through the pinhole cap 23 and the air inlet 22. The liquid medicine then passes through the impeller 25, which, driven by the water flow, rotates the air cap 24. The rotation of the air cap 24 and the impeller 25 performs secondary shearing and refinement of the gas-liquid mixture, producing a smaller and more uniform mist. When the liquid medicine comes into contact with the pressure plate 31 and the ring, the liquid medicine pushes the pressure plate 31 to squeeze the spiral spring 32, and the ejector pin 33 extends out from the nozzle cap 3. The liquid medicine can be sprayed out through the gap between the ejector pin 33 and the nozzle cap 3, spraying onto the corn seedlings. After spraying, the pressure plate 31 is reset under the action of the spiral spring 32, and the ejector pin 33 retracts. The retracted ejector pin 33 cleans the nozzle cap 3. The liquid medicine remaining in the nozzle cap 3 and the installation tube 2 can be discharged through the drain hole 34, which can effectively avoid the problem of crystallization and blockage caused by liquid medicine residue.

[0030] It should be noted that, in this document, 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 process, method, article, or apparatus.

[0031] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A nozzle device for spraying pesticides in maize breeding and cultivation, characterized in that: The device includes an infusion pipe (1), an installation pipe (2) is threaded on the outside of the infusion pipe (1), and a sealing ring (21) is installed at the connection between the installation pipe (2) and the infusion pipe (1). An air inlet hole (22) is opened on the outside of the installation pipe (2), and a pin hole cap (23) is threaded on the top of the air inlet hole (22). A wind cap (24) is rotatably installed at the end of the installation pipe (2) away from the infusion pipe (1), and an impeller (25) is installed at the axis of the wind cap (24). A nozzle cap (3) is threaded on the end of the installation pipe (2) near the wind cap (24), and a pressure plate (31) is installed on the inner side of the nozzle cap (3). A helical spring (32) is circumferentially installed on the inner side of the pressure plate (31), and a pin (33) is installed at the axis of the pressure plate (31). A drain hole (34) is opened at the end of the pin (33).

2. The nozzle device for spraying pesticides in maize breeding and cultivation according to claim 1, characterized in that: The air inlet (22) is symmetrically arranged with respect to the centerline of the mounting pipe (2).

3. The nozzle device for spraying pesticides in maize breeding and cultivation according to claim 1, characterized in that: The mounting tube (2) has a groove near the wind cap (24), and the wind cap (24) and the mounting tube (2) are connected by the groove to form a locking and rotating mounting structure.

4. The nozzle device for spraying pesticides in maize breeding and cultivation according to claim 1, characterized in that: The wind cap (24) has a through hole in the circumferential direction.

5. The nozzle device for spraying pesticides in maize breeding and cultivation according to claim 1, characterized in that: The end of the impeller (25) away from the wind cap (24) is fixed to the mounting pipe (2) by a support ring.

6. The nozzle device for spraying pesticides in maize breeding and cultivation according to claim 1, characterized in that: The pressure plate (31) and the nozzle cap (3) are arranged with their axes aligned.

7. The nozzle device for spraying pesticides in maize breeding and cultivation according to claim 1, characterized in that: A ring is provided in the middle part of the ejector pin (33).

8. The nozzle device for spraying pesticides in maize breeding and cultivation according to claim 1, characterized in that: The end section of the ejector pin (33) is shaped like a shuttle.

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