JP2013086875A - Container and nozzle for uniformly spraying liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a means capable of performing uniform spraying by canceling labor or spraying non-uniformity caused by forcibly applying pressure to a spray container body in a conventional liquid spray container or the like, or by installing an air release fine tube within the spray container or by providing an air hole on the bottom part or side part of the spray container body, and by canceling pressure reduction caused by spray that may occur in a container provided with the air release fine tube or the air hole.SOLUTION: An air hole 3 is provided in the vicinity of a connecting part 2 between a liquid spray container body 1 and a nozzle portion 4, thereby maintaining fixed pressure until a liquid level reaches the air hole 3.

Description

  The present invention relates to a spray container for uniformly spraying diluted liquids of agricultural chemicals and fertilizers.

  Currently, pesticides and fertilizers that can be sprayed as they are in a bottle-shaped container are sold so that users do not touch them. Many of these containers have a mechanism in which a discharge plug is provided with an inner stopper provided with a hollow hole that reaches several holes and the bottom of the container, and the bottle is tilted to spray a chemical solution like a watering can. However, in the container with this mechanism, when the chemical solution is sufficiently filled in the container, the chemical solution is smoothly diffused from the discharge port. It will not spread. Therefore, in the second half of spraying, it is necessary to spray the container by hand to make up for the pressure. In addition, a utility model in which an air hole is provided at a position away from the discharge port of the spray container body is registered.

  In addition, there are used hand spray types that are used under pressure and small-capacity containers that are used to discharge chemicals by pushing the containers themselves. For granular agricultural chemicals, there has been proposed a spray container having a flat trapezoidal spray head for the purpose of maintaining the uniformity of the spray amount and spray width.

  Registered Utility Model No. 3002158   Registered Utility Model No. 3007633   JP 10-324376 A

  For pesticides and fertilizers, it is an important factor from the standpoint of the effect and safety that the drug is uniformly applied per area. However, it is difficult to drop the chemical solution uniformly in the current container in which the pressure of the chemical solution exiting the container changes with time. In addition, when using a hand spray type that is pressurized or a small-capacity container that pushes the container itself to discharge the chemical solution, intermittent spraying is unavoidable, making it difficult to uniformly drop the chemical solution per area. Therefore, there is a need for containers and nozzles that do not require dilution, improve the change in the discharge rate of the chemical solution over time in the chemical solution spray container that sprays agricultural chemicals and fertilizers as it is and the reduction in the spray width, and enable simple and uniform spraying. It has been.

  The liquid spraying container main body and the nozzle part of the present invention are characterized in that an air hole is provided in the vicinity of the connection part between the nozzle part in which the discharge ports are arranged with a spraying width required in advance and the container main body.

  Since the container body is sealed and there is a certain distance between the discharge port and air hole of the nozzle part, when spraying with the container body turned upside down, it applies to the water pressure applied to the discharge port and the air hole above the discharge port By causing a difference in water pressure, air flows in from the upper air hole and liquid is discharged from the discharge port.

  Since the discharge amount is controlled by the inflow of air due to this pressure difference, when the container body is turned upside down, the air level is not affected by the height of the liquid level remaining in the container body at the top of the air hole. The liquid is discharged at a constant pressure up to the position of the hole. At this time, since the pressure applied to the air hole is smaller than the pressure applied to the discharge port, liquid leakage from the air hole does not occur.

  In addition, the discharge pressure varies depending on the distance between the air hole and the discharge port, and considering the container capacity at the same time, the distance between the air hole and the discharge port is 10 to 200 mm, preferably 20 to 100 mm. The capacity of the container body is preferably 1.0 to 5.0 L.

  The shape of the nozzle portion connected to the container body can be a flat trapezoidal shape as well as a hemispherical shape or a semi-elliptical spherical shape used in a general watering can. In the case of a flat trapezoidal nozzle portion, it is possible to efficiently and easily spray a certain amount to a portion that requires a certain amount by providing a discharge port corresponding to the required spray width and discharge amount. The short diameter and long diameter of the hemispherical or semi-elliptical spherical nozzle discharge part are 50 to 100 mm, and the long side of the flat trapezoidal nozzle discharge part is 50 to 300 mm. The interval between the discharge ports provided in the discharge unit is 3 to 15 mm, and the diameter of the hole is 0.5 to 2.0 mm.

  The nozzle portion can be integrally formed with the container body, but a hard metal or synthetic resin can be formed and attached to the container. In the case of a synthetic resin, since the shape is maintained by water pressure from the inside, it can be molded from a soft material such as thin film polyethylene or rubber as long as it can withstand the water pressure. When a soft material is used, it can be folded, so that even a large nozzle portion can be stored compactly.

  When the container body and the nozzle portion are not integrally molded, the nozzle portion can be screwed into the container body, or can be inserted into the container body by molding with a stretchable resin, rubber or the like. In addition, when molded from a soft material such as thin film polyethylene or rubber, it can be easily connected to the container body with a binding band or the like. The air hole is better in terms of product management because there is no fear of liquid leakage or the like in the nozzle part from the container body side.

  An air hole is provided in the vicinity of the connection portion between the nozzle portion of the liquid spraying container and the container body to adjust the liquid spraying amount to be constant. Moreover, uniform and efficient spraying is possible by using a flat trapezoidal nozzle part together.

The perspective view of one Example of the liquid spraying container of this invention

1. Container body 2. Connection between the container body and the nozzle part Air hole 4. 4. Nozzle part Discharge port 6. Handle

  Hereinafter, embodiments of the present invention will be described based on Test Example 1 and Example 1.

(Test Example 1) Relationship between the position of the air hole and the water pressure to be discharged A discharge port having a diameter of 0.5 mm was provided on the lowermost side surface by covering the top and bottom of a vinyl chloride pipe having a diameter of 15 mm and a length of 500 mm. Furthermore, by providing an air hole with a diameter of 0.5 mm on the uppermost side of the cylinder or the upper side of 30 mm of the discharge port and filling it with water, and measuring the distance of water flying horizontally every 10 seconds after opening the air hole The change in the water pressure discharged in each case was observed. As a result, when an air hole was provided on the uppermost side of the cylinder, the water that had been flying 60 cm in the horizontal direction at the beginning of the observation gradually decreased the distance, and became 15 cm in the horizontal direction after 60 seconds. On the other hand, when an air hole is provided on the lower side surface of the cylinder, the momentum of water discharged from the beginning of observation until the water surface reaches the air hole is constant, and the water flies in the horizontal direction every 10 seconds from the beginning of observation to 60 seconds later. The distance was 15 cm.

Relationship between the Material of the Nozzle Part and the Discharge Rate A total of four nozzle parts having a flat trapezoidal shape with long sides of 150 mm and 300 mm made of polyethylene having a thickness of 0.01 mm and 0.1 mm in the shape shown in FIG. As for the discharge port, holes with a diameter of 2 mm were arranged on a straight line at intervals of 20 mm, and the interval between the discharge port and the air holes with a diameter of 2 mm was set to 100 mm. A spraying experiment was carried out by attaching a nozzle part prepared from a commercially available 2 L container (product of grass extermination shower, Sumitomo Chemical Gardening Co., Ltd.) to which the inner plug with an outer diameter of 34 mm attached with a ventilated thin tube was removed. The volume of water discharged every 10 seconds up to 90 seconds out of 100 seconds until the water in the container disappears when spraying using a nozzle with a width of 150 mm is measured by separating the water discharged every 10 seconds. All were 200 ml each. In addition, when spraying using a nozzle with a width of 300 mm, the volume of water discharged every 10 seconds up to 40 seconds out of 50 seconds until the water in the container runs out is 450 ml, and a constant discharge amount is obtained in any experiment. Maintained and ensured uniform spreading width.

Claims (2)

  A liquid spraying container in which a nozzle portion is connected to an opening of a container body into which liquid is placed, and a hole for taking in air for discharging the liquid in the container is provided in the vicinity of the connection portion between the nozzle portion and the container body.   2. A nozzle portion according to claim 1, wherein the nozzle portion connected to the opening of the container body into which the liquid is placed is a flat trapezoidal shape, and holes are provided so as to have a spraying width and a discharge amount required for the trapezoid long side portion. A liquid spray container.

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