CN116002380A - Plant protection machine powder medicament air flow precision conveying device - Google Patents

Abstract

The invention discloses an airflow precision conveying device for powdered medicament of a plant protection machine, comprising an air pipe and a material pipe; the air pipe is placed flat, one end is an air inlet, and the other end is an air outlet; It is fixedly connected with the upper side wall of the air pipe; the material pipe is inclined, and the upper end is inclined to the side where the air inlet is located; the lower end of the side wall of the material pipe near the air inlet extends into the inner cavity of the air pipe; further improvement lies in: the material pipe and the air pipe The inner wall of the air duct between the air inlets is provided with axial spiral grooves. The invention has high conveying precision, long conveying distance and uniform conveying.

Description

Plant protection machine powder medicament air flow precision conveying device

technical field

The invention relates to the technical field of agricultural machinery, in particular to a chemical delivery device for a plant protection machine.

Background technique

The plant protection machine is equipped with a medicament delivery device. The existing medicament delivery device generally includes an air duct and a material tube. The upper side wall is fixedly connected, the material pipe is inclined, and the upper end is inclined to the side where the air inlet is located. When in use, the powdered medicament falls from the material tube, the air is taken in from the air inlet, and the powdered medicament dropped from the material tube is blown out from the air outlet to complete the spraying operation. The defect of this medicament delivery device is that: when the air duct is blowing from the air inlet to the air outlet, part of the wind blows upward from the lower end of the material tube. Affects the accuracy of drug delivery. On the other hand, the air volume is shunted, the air velocity is reduced, and the delivery distance is short.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model proposes a powdered medicament air flow precision delivery device for plant protection machines that can significantly improve the delivery accuracy and delivery distance of the medicament.

The present invention achieves technical goals through the following technical solutions.

The plant protection machine powder medicament airflow precision conveying device includes an air pipe and a material pipe; the air pipe is placed horizontally, one end is an air inlet, and the other end is an air outlet; the material pipe runs through the upper side wall of the air pipe and is connected with the air The upper and side walls of the pipe are fixedly connected; the material pipe is inclined, and the upper end is inclined to the side where the air inlet is located; the improvement is that the lower end of the side wall of the material pipe near the air inlet extends into the inner cavity of the air pipe.

Preferably, the inner wall of the air pipe between the material pipe and the air inlet of the air pipe is provided with an axial spiral groove.

Compared with the prior art, the present invention has the following positive effects:

1. The lower end of the side wall of the material tube near the air inlet extends into the inner cavity of the air duct. In this way, the lower end of the side wall of the material tube extending into the inner cavity of the air duct covers part of the ventilation section and forms a closure. When blowing from the air inlet to the air outlet, the wind speed after closing the mouth is significantly enhanced. On the one hand, the conveying speed is significantly increased, and the conveying distance is significantly increased; on the other hand, the inner cavity of the air pipe at the lower end of the material pipe is not blocked by the side wall of the material pipe. The space blocked by the side wall of the material tube forms a large pressure difference, forming a siphon phenomenon, not only no wind blows upward from the lower end of the material tube, but also attracts the powdered drug to fall, thereby significantly improving the accuracy of drug delivery.

2. The inner wall of the air pipe between the material pipe and the air inlet of the air pipe is provided with an axial spiral groove. When blowing from the air inlet to the air outlet, a spiral wind belt is formed to increase the wind speed. On the one hand, the uniformity of conveying is significantly improved, and on the other hand On the one hand, the conveying distance is further increased.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a top view of Fig. 1 .

Fig. 3 is a cross-sectional view of A-A in Fig. 2 .

Fig. 4 is a schematic diagram of the three-dimensional structure of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in the accompanying drawing, the airflow precision conveying device for powdered medicament of the plant protection machine includes air duct 1 and material duct 2; The upper side wall is fixedly connected with the upper side wall of the air pipe 1; the inner wall of the air pipe 1 between the material pipe 2 and the air inlet 11 of the air pipe 1 is provided with an axial spiral groove; the material pipe 2 is inclined, and the upper end faces the air inlet 11 The side where it is located is inclined; the lower end of the side wall 21 on the side close to the air inlet 11 of the material pipe 2 extends into the inner cavity of the air pipe 1 .

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments do not exhaust all details nor limit the invention to only specific embodiments. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (2)

1. The utility model provides a plant protection machine powdery medicament air current precision conveying device, includes tuber pipe (1), material pipe (2); the air pipe (1) is horizontally arranged, one end of the air pipe is provided with an air inlet (11), and the other end of the air pipe is provided with an air outlet (12); the material pipe (2) penetrates through the upper side wall of the air pipe (1) and is fixedly connected with the upper side wall of the air pipe (1); the material pipe (2) is obliquely arranged, and the upper end of the material pipe is inclined towards one side where the air inlet (11) is arranged; the method is characterized in that: the lower end of the side wall (21) of the material pipe (2) close to one side of the air inlet (11) stretches into the inner cavity of the air pipe (1).

2. The plant protection machine powdery medicament airflow precise conveying device according to claim 1, wherein: an axial spiral groove is formed in the inner wall of the air pipe (1) between the material pipe (2) and the air inlet (11) of the air pipe (1).

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