CN201415164Y - High-efficiency nozzle for knapsack sprayer - Google Patents

Abstract

The high-efficiency nozzle of the knapsack sprayer consists of: "T"-shaped three-way nozzle, two pneumatic spray nozzles, an infusion liquid pipe connected to the liquid outlet of the sprayer's medicine box, and a "T"-shaped three-way nozzle. The vertical pipe of the tube is connected with the nozzle assembly of the sprayer, the two ends of the horizontal pipe of the "T" shaped three-way nozzle are respectively connected with the pneumatic mist nozzle, and the infusion liquid pipe is respectively connected with the said sprayer through a three-way pipe. The liquid medicine input ports of the volume control valves of the two pneumatic spray nozzles are connected. Use the nozzle of the utility model to spray under the canopy on the side of the plant, and through the "pipe" formed by the gap between the rows of plants and the canopy, the powerful airflow generated by the motorized knapsack sprayer transports the mist to a far place , so that the sprayed pesticide droplets can be evenly distributed on the front and back of the leaves and stems at the lower part of the canopy; because the strong wind generated by the motorized knapsack sprayer is blown in two opposite directions in a balanced manner, the spray nozzle will not Deviation occurs to ensure the control effect.

Description

High-efficiency nozzle for knapsack sprayer

technical field

The utility model relates to a mist sprayer nozzle, in particular to a "T"-shaped two-way spray nozzle of a motorized knapsack sprayer, and belongs to the technical field of agricultural plant protection machinery.

Background technique

The motorized knapsack sprayer is a light, flexible and efficient power plant protection machine, which is used for the prevention and control of plant diseases and insect pests in large areas. But the existing motorized knapsack sprayer is only equipped with a one-way spray nozzle, which is used for horizontal drift spraying on the leaves of crops. The spraying distance is long, and the droplets move to the bottom of the crops by their own gravity. When the crops are small and the leaves have not blocked each other, the fog droplets can reach the lower part of the plants; but when the crops grow in the middle and late stages, the plants are large, with many leaves, and the leaves block each other, forming a canopy density on the upper part of the plants. High canopy, due to the blocking of the canopy, it is difficult for the pesticide droplets sprayed by the horizontal drift method to travel to the lower part of the plant canopy, which affects the control effect of diseases and insect pests that damage the lower parts of the plants. Although it is also possible to spray under the canopy by using accessories such as elbows and other motorized knapsack sprayers, the efficiency is reduced because it can only be sprayed in one direction. One direction, due to the reaction force, the one-way spray nozzle is extremely easy to deviate, which affects the control effect.

Contents of the invention

The purpose of this utility model is: aiming at the deficiency of the one-way spray nozzle of the existing knapsack sprayer above, a high-efficiency nozzle of the knapsack sprayer is proposed, which can realize two-way spraying under the canopy of the crop plants.

In order to achieve the above purpose: the utility model provides a high-efficiency spray head of a knapsack sprayer, which consists of: a pneumatic mist spray head, a medicine infusion tube connected to the liquid outlet of the medicine box of the sprayer, and the medicine infusion tube It communicates with the liquid medicine input port of the pneumatic mist spray nozzle adjustment valve, and is characterized in that it also includes a "T" shaped three-way nozzle and two pneumatic mist spray nozzles. The "T" shaped three-way nozzle The vertical pipe of the pipe is connected with the nozzle assembly of the sprayer, the two ends of the horizontal pipe of the "T" shaped three-way nozzle are respectively connected with the pneumatic mist nozzle, and the infusion liquid pipe is respectively connected to the three-way pipe through a three-way pipe. The liquid medicine input ports of the two pneumatic mist nozzle adjustment valves mentioned above are connected.

The working process of the utility model is as follows: the high-speed airflow entering the long nozzle of the motorized knapsack sprayer is equally divided into two airflows, and blows to the pneumatic mist spray nozzles placed at the two ends of the horizontal tube of the "T" shaped three-way nozzle; A three-way pipe connected to the infusion liquid pipe on the liquid outlet of the sprayer medicine box divides the liquid medicine into two streams and enters the volume control valve on the pipe wall of the mist nozzle, and then flows into the nozzle of the pneumatic mist nozzle. The liquid medicine flowing out from the small hole of the nozzle is blown into a fine mist by the powerful airflow in the nozzle, and sprayed to both sides.

The beneficial effects of the utility model are as follows: the nozzle of the utility model can spray under the canopy, and involves the crops planted in rows such as rice, cotton, corn, and wheat. In the middle and later stages of the growth of these crops, the plants are large, with many leaves, and the leaves cover each other, forming a canopy with a high canopy density on the upper part of the plants, but there is a large gap between the rows of plants below the canopy. The gaps and the canopy form a "pipeline". Using the "T"-shaped two-way spray nozzle of the utility model motorized knapsack sprayer, the spray is carried out under the canopy on the side of the plant, and the gap between the rows of plants is formed by the canopy. The powerful airflow generated by the motorized knapsack sprayer transports the droplets to farther places, so that the sprayed pesticide droplets can be evenly distributed on the front and back of the leaves and stems at the lower part of the canopy; due to the motorized The strong wind generated by the knapsack sprayer is evenly blown in two opposite directions, so that the spray nozzle will not deviate and ensure the control effect.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a schematic structural diagram of the front view of the high-efficiency nozzle of the knapsack sprayer of the present invention.

Fig. 2 is a front sectional view of the high-efficiency nozzle of the knapsack sprayer of the present invention.

Detailed ways

The high-efficiency nozzle of the knapsack sprayer of the present embodiment is shown in Fig. 1 and Fig. 2, and the high-efficiency nozzle of the knapsack sprayer comprises: pneumatic mist spray nozzles 31, 32, an output device connected to the liquid outlet of the sprayer medicine box. The liquid medicine pipe 4 and the liquid medicine infusion pipe 4 are in communication with the liquid medicine input ports 510, 520 of the pneumatic mist spray nozzles 31, 32, the regulating valves 51, 52, and the improvement is that it also includes a "T" shaped tee Nozzle 10, and two pneumatic mist nozzles 31, 32, the vertical pipe 1 of the "T" shaped three-way nozzle 10 is connected to the nozzle assembly of the sprayer, and the horizontal pipe 2 of the "T" shaped three-way nozzle 10 The two ends are respectively connected to the pneumatic mist spray nozzles 31, 32, and the liquid medicine infusion pipe 4 is respectively connected to the liquid medicine input ports 510, 510, and 520 Unicom.

As shown in Fig. 1 and Fig. 2, the vertical pipe 1 and the horizontal pipe 2 constitute the "T" shaped three-way nozzle 10 of the present utility model, and the "T" shaped three-way nozzle forms the high-efficiency The main body of the sprinkler.

In order to facilitate the airflow entering the vertical pipe 1 to be divided into two strands, and to blow smoothly to the pneumatic spray nozzles 31 and 32 at the two ends of the horizontal pipe 2, as shown in Figure 2, the middle part of the horizontal nozzle of the present invention has its section A flow-guiding partition 7 in the shape of a "herringbone", the ridge of the flow-guiding partition 7 is located in the middle of the vertical pipe 1 .

After the motorized knapsack sprayer is started, high-speed airflow is generated, and most of the airflow flows into the nozzle. When it flows through the vertical nozzle of the "T"-shaped three-way nozzle assembly, it is "human" in the horizontal tube of the "T"-shaped three-way nozzle. "The shape of the partition is evenly divided into two airflows, which flow to the pneumatic mist nozzle. A small part of the high-speed airflow generated after the motorized knapsack sprayer is started enters the medicine box, forcing the liquid medicine to flow into the infusion plastic tube, and the tee connected to the infusion plastic tube is divided into two streams to flow to the pneumatic mist nozzle, and from the nozzle small The liquid medicine flowing out of the small hole of the nozzle is blown into a fine mist by the powerful airflow in the nozzle, and sprayed to both sides. The "T"-shaped two-way spraying nozzle of the utility model is suitable for spraying pesticides under the canopy in the middle and late stages of the growth of crops planted in rows, has simple operation, improves work efficiency, and can better ensure the quality of pesticide application.

In addition to the above embodiments, the utility model can also have other implementations. All technical solutions in the form of equivalent replacement or equivalent transformation fall within the scope of protection required by the utility model.

Claims (3)

1. The high-efficiency nozzle of the knapsack sprayer, which consists of: a pneumatic mist nozzle, an infusion liquid pipe connected to the liquid outlet of the sprayer medicine box, the infusion liquid pipe and the pneumatic mist nozzle adjustment valve The liquid medicine input port is connected, and it is characterized in that it also includes a "T" shaped three-way nozzle and two pneumatic spray nozzles, the vertical pipe of the "T" shaped three-way nozzle is connected to the sprayer The two ends of the horizontal tube of the "T" shaped three-way nozzle are respectively connected to the pneumatic mist spray nozzle, and the infusion liquid pipe is respectively connected to the two pneumatic mist spray nozzles through a three-way pipe. The liquid medicine input port of the volume control valve of the mist spray head is connected. 2. The high-efficiency sprinkler head of a knapsack sprayer according to claim 1, characterized in that: the middle part of the horizontal tube has a diversion baffle whose cross-section is in the shape of a "herringbone", and the ridge of the diversion baffle is located in the vertical the middle of the tube. 3. The high-efficiency sprinkler head of a knapsack sprayer according to claim 2, characterized in that: the three-way pipe is connected in parallel with the liquid medicine input port of the volume control valve through the liquid medicine infusion pipe.

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