公开(公告)号：EP3194082A4

公开(公告)日：2018-03-28

申请号：EP15830562

申请日：2015-08-03

申请人： SWISSMEX RAPID S A DE C V

发明人： LUCHSINGER PEDRO WIRZ

IPC分类号： B05B9/08 ,  B05C17/005

CPC分类号： B05B9/0877 ,  B05B9/0413 ,  F04B9/14 ,  F04B19/22 ,  F04B23/025 ,  F04B53/14 ,  F04B53/16

摘要： System to prevent leaks of liquids in a manual sprayer—insecticides, herbicides, fungicides—comprised by a large storing tank in which a recipient is installed under pressure. A pumping assembly, which is manually activated, is connected to the inferior part of the container under pressure and to the lower part of the tank. The pumping assembly is comprised of an alternative piston to extract the liquid from the storing tank and to pressurize it inside the container under pressure. The pressurized liquid is applied using a hose and a regulating valve attached to the container under pressure. The pumping ensemble is comprised as well by a double-walled piston and a barrier against leaks of the piston, formed by a flexible sealing accordion with four lobes or waves that avoid grazing the cylinder and that prevent leaking from taking place between the superior side of the piston and the inferior side of the piston chamber, thus blocking the exit of liquid and forcing it to stay at the collection chamber until it is once again emptied thanks to the descending movement of the piston. The liquid is therefore taken back from the collection chamber to the storing tank by means of a returning hose, of an internal duct and of a siphon that unloads above the liquid level.

公开(公告)号：EP2925455A4

公开(公告)日：2016-08-24

申请号：EP13861050

申请日：2013-03-12

申请人： SWISSMEX RAPID S A DE C V

发明人： LUCHSINGER PEDRO WIRZ

IPC分类号： B05B9/08 ,  A01M7/00

CPC分类号： A01M7/0046 ,  A01M7/0017 ,  B05B9/0877 ,  B05B15/04

摘要： Improvements in an agricultural manual sprayer for preventing leakage of fluids such as insecticides, herbicides or fungicides that comprises tank with a large storage capacity into which a pressure vessel is installed. A manually activated pumping assembly is connected with the inferior section of the pressure vessel and also with the inferior section of the tank. The pumping assembly comprises a reciprocating piston pump for extracting the fluid from the storage tank and pressurizing it within the pressure vessel. The pressurized fluid is applied with a hose and a throttle valve attached to the pressure vessel. The assembly also comprises a double walled piston and barrier against leakage consisting of a ring with interior lips which seal it against the cylinder preventing the exit of fluid, forcing it to remain in the collection chamber until it is emptied with the downward movement of the piston, returning the liquid from the collection chamber to the storage tank through a return hose and internal ducts.

摘要翻译： 农业手动喷雾器的改进，用于防止诸如杀虫剂，除草剂或杀真菌剂等流体泄漏，其包括具有大容量储罐的压力容器的安装位置。 手动激活的泵送组件与压力容器的下部部分以及罐的下部连接。 泵送组件包括用于从储罐中提取流体并在压力容器内对其进行加压的往复活塞泵。 加压流体被施加有附接到压力容器的软管和节流阀。 该组件还包括双壁活塞和防止泄漏的屏障，其包括具有内部唇部的环，该环具有内部唇缘，该环将其密封到气缸上，防止流体的排出，迫使其保持在收集室中，直到其被活塞向下移动 ，通过回流软管和内部管道将液体从收集室返回到储罐。