Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1001—Piston pumps
  • B05B11/1015—Piston pumps actuated without substantial movement of the nozzle in the direction of the pressure stroke

Definitions

• the invention relates to a swirl atomizer pump, in which a one-way valve is arranged in the conveying direction behind the pump device in the liquid supply channel to the swirl chamber with the atomizer nozzle, which closes the channel in the depressurized state and opens under pump pressure.
• Swirl atomizer pumps of this type are used for conveying liquids from containers and for atomizing or spraying one metered each Amount of liquid.
• These atomizer pumps which can generally be placed on the container with their housing, are mechanically or the like from the outside via lever handles. actuated, which act on a wide variety of pumping devices.
• a riser pipe which, after renewed pressure on the pump piston, is pressed via a liquid supply channel to a swirl chamber, from which the liquid is then sprayed out through a nozzle due to the swirl effect.
• Such a swirl atomizer pump with a piston pump device in which the liquid sucked into the piston chamber is guided to the swirl chamber through a tubular liquid supply channel arranged perpendicular to the riser pipe.
• This liquid supply channel is arranged parallel to the direction of movement of the external operating lever, via which the respective ventilation of the container is controlled.
• a one-way valve is arranged at the beginning of the liquid supply channel, i.e. behind the pump device, which closes the channel in the depressurized state and opens under pump pressure. It is about thereby a spring valve with a valve pin which is pressed by a compression spring into a corresponding valve seat in the supply channel.
• the outlet nozzle of the swirl chamber is additionally closed from the outside with a hinged cover.
• the object of the invention is to propose a swirl atomizer pump of the type mentioned at the outset, in which an outflow or evaporation of liquid located in the feed channel is largely prevented and additional closures at the nozzle outlet are avoided.
• the object of the invention is achieved with a swirl atomizer pump of the type mentioned at the outset, which is characterized by an annular feed channel, on the inner wall of which delimits the annular space, a circumferential lip seal is arranged shortly before entry into the swirl chamber, which acts on the outer wall of the annular space due to its own preload .
• the lip seal is integrally formed on the outside of a hollow cylinder that delimits the annular space on the inside.
• the swirl chamber is sealed by the lip seal / so that any liquid remaining in the feed channel can neither escape nor evaporate.
• the construction according to the invention is simple and inexpensive in contrast to the additionally necessary and to be assembled parts of corresponding one-way valves in the known construction described.
• the invention is explained in more detail below on the basis of an illustrated exemplary embodiment.
• the illustration shows a longitudinal section through a swirl atomizer pump.
• the entire plastic housing of the swirl atomizer pump shown bears the number 1. At its lower section, a nozzle 11 is formed, in which a connector 4 is inserted. On the outwardly projecting flange 41 of this connector 4, a cap 3 is placed, with which the housing can be screwed onto a container (not shown). Through the tubular connector protrudes a molded in the housing duct 15 in which the riser 24 forms the extension down.
• This riser pipe is held in a nozzle 23, which in turn is fastened in the duct nozzle 15.
• the upper end of this nozzle 23 forms the valve seat 22, which forms a check valve 2 with a ball 21.
• a receptacle 16 for the pump arrangement is formed transversely to the channel 13.
• the pump cylinder 18 In the bore 17 of this pump receptacle 16, the pump cylinder 18 is formed, in which a piston 19 can be moved over the shaft 191 projecting outwards.
• the shaft 191 is actuated via the handle 192, which is guided on the housing 1.
• the piston 19 is automatically reset via the helical compression spring 8.
• This annular feed channel 14 is connected to the channel 13. It leads to a swirl chamber 6 formed at the end of the tubular housing extension 12.
• This swirl chamber is on a plug-like insert 5 formed, which is inserted sealed from the outside in the tubular housing extension 12.
• the outlet nozzle 51 is provided centrally in this insert.
• a lip seal 72 is formed on the insert cylinder 7 in a ring shape, which due to its internal stress acts against the wall 121 of the feed channel 14. In the depressurized state, this feed channel 14 is therefore sealed off from the swirl chamber 6 or the nozzle 51.
• This lip seal 72 opens under the pressure of the actuated piston 19 of the pump, so that the liquid to be ejected or sprayed can reach the swirl chamber or to the outside in a metered amount.
• the lip seal in turn closes the channel 14 immediately before entering the swirl chamber, so that any liquid remaining in the channel 14 can no longer escape or evaporate.

Landscapes

• Reciprocating Pumps (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Closures For Containers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6759840

Family Applications (1)

Country Status (5)

Cited By (3)

Citations (2)

• 1983
  • 1983-12-14 DE DE19838335863U patent/DE8335863U1/de not_active Expired
• 1984
  • 1984-11-30 WO PCT/DE1984/000256 patent/WO1985002562A1/de unknown
  • 1984-11-30 EP EP85900049A patent/EP0164373A1/de not_active Withdrawn
  • 1984-12-13 ES ES1984283392U patent/ES283392Y/es not_active Expired
  • 1984-12-14 IT IT24064/84A patent/IT1196370B/it active

Patent Citations (2)

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