EP0230968A2 - Pulvérisateur de liquide actionné par de l'air comprimé - Google Patents

Pulvérisateur de liquide actionné par de l'air comprimé Download PDF

Info

Publication number
EP0230968A2
EP0230968A2 EP87100746A EP87100746A EP0230968A2 EP 0230968 A2 EP0230968 A2 EP 0230968A2 EP 87100746 A EP87100746 A EP 87100746A EP 87100746 A EP87100746 A EP 87100746A EP 0230968 A2 EP0230968 A2 EP 0230968A2
Authority
EP
European Patent Office
Prior art keywords
valve
container
compressed air
channel
spraying device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87100746A
Other languages
German (de)
English (en)
Other versions
EP0230968A3 (en
EP0230968B1 (fr
Inventor
Oskar Fröhlich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tunap Deutschland Vetriebs GmbH and Co KG
Original Assignee
Tunap Deutschland Vetriebs GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tunap Deutschland Vetriebs GmbH and Co KG filed Critical Tunap Deutschland Vetriebs GmbH and Co KG
Priority to AT87100746T priority Critical patent/ATE57628T1/de
Publication of EP0230968A2 publication Critical patent/EP0230968A2/fr
Publication of EP0230968A3 publication Critical patent/EP0230968A3/de
Application granted granted Critical
Publication of EP0230968B1 publication Critical patent/EP0230968B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
    • B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump
    • B05B9/0822—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump a discharge device being fixed to the container

Definitions

  • the invention relates to a compressed air-operated spraying device for liquids, with a container for holding liquid and a spray head which can be connected to the container and which has a pump device which can be actuated via a pusher and by means of which a higher air pressure than that of the surroundings in the container space can be built up above the liquid and which further has a riser tube connected to an outlet nozzle, which preferably extends into the vicinity of the bottom of the container.
  • Such a spraying device is generally known and has the disadvantage that at the end of the displacement path of the pusher, the pressure inside the container decreases, so that no uniform spray pattern is obtained and, in addition, drops form at the outlet nozzle.
  • the invention has for its object to develop a spraying device of the type mentioned so that you can work with a uniform spray pressure over a longer period.
  • the compressed air-operated spraying device for liquids according to the present invention is characterized in that a first valve, which only allows air to pass in the direction of the container, is arranged between the pumping device and the container, and in that a second valve is arranged between the outlet nozzle and the riser pipe the handle can be acted upon and brought into an open position.
  • a relatively high pressure in the container space above the liquid can thus first be generated via the first valve. If this high pressure is built up, the second valve can be opened by further displacement of the pusher so that the liquid present in the container can be sprayed through the outlet nozzle over a relatively long period of time. This period is longer than the period for a normal shift cycle of the handle.
  • the pusher is mounted on a ersprühkopfes connected to the container shaft of an angle-shaped V.
  • the shaft has a guide channel running inward from its side wall for receiving a guide rod, one end of which is connected to a handle bar to form the handle, a compression spring being arranged on the guide bar, which is supported on the handle bar and the inner end face of the guide channel , and wherein the handle bar is connected to a parallel to the guide rod pump rod, by means of which a piston is displaceable within a pressure cylinder arranged in the shaft of the spray head, the output of which is connected to the inlet of the first valve.
  • the guide rod which is displaceable within the guide channel, ensures reliable guidance of the grip bar, which in its rest position is pressed away from the shaft due to the compression spring on the guide rod.
  • the push rod lying parallel to the guide bar which is also fastened to the handle bar, is simultaneously displaced in order to move a piston arranged at its end within a pressure cylinder which is parallel to the guide channel.
  • the air compressed in the pressure cylinder by the piston passes through the first valve, which can be a check valve, for example, into the container space above the liquid, so that a higher pressure than the ambient pressure is built up there.
  • the first check valve is only opened when the pressure in the pressure cylinder has reached a minimum value.
  • the first valve can, for example, have a ball lying in a conical channel in front of a channel opening, which ball is pressed against the edge of the channel opening by a compression spring. Only when the pressure force inside the pressure cylinder is greater than the pressure force of the compression spring, the first valve opens.
  • the second valve can be moved into its open position by means of a switching rod which projects from the shaft in the region of the handle and can be displaced in the axial direction.
  • a switching rod which projects from the shaft in the region of the handle and can be displaced in the axial direction.
  • the control rod does not rest on the handle bar when it is in its rest position. Rather, the distance between the grip bar and the end of the shift rod protruding from the shaft is selected so that it corresponds at least approximately to the stroke of the piston in the pressure cylinder under the conditions mentioned.
  • the piston When the handle bar is actuated, the piston can therefore be moved back and forth practically in the entire pressure cylinder without the control bar being acted upon by the handle bar to open the second valve. Only when the handle bar is pushed completely through, is the shift rod in the second valve moved so that it is opened.
  • the second valve preferably has a ball located in a conical channel in front of a channel opening, which is pressed by a compression spring against the edge of the channel opening, the switching rod acting on the ball through the channel opening.
  • a first valve chamber of the second valve containing the ball is connected to the riser already mentioned, while a second valve chamber of the second valve, through which the switching rod passes, is connected to the outlet nozzle.
  • the first and second valve chambers of the second valve are formed by a blind hole drilled in the shaft parallel to the guide rod, an annular element being inserted in the central region of the blind hole to form the conical channel and the channel opening.
  • the spray head can preferably be made of plastic, for example a solid plastic blank, in the chambers for the first and second valve, a chamber for the pressure cylinder, the guide channel and connecting channels between the outlet nozzle and the second valve, the second valve and the riser pipe, the pressure cylinder and the first valve, and first valve and bottom of the spray head are introduced.
  • the grip bar can have several concave recesses on the outside, for example two or three pieces for holding fingers.
  • the compressed air-operated spraying device shown in the figure comprises a container 1, which can be designed, for example, as a can and serves to hold a liquid 2, for example paint or oil and the like.
  • the liquid 2 fills the container 1 only to such an extent that a free space 3 remains above the liquid 2 in its upper region.
  • the container 1 At the upper end of the container 1 has a nozzle 4, on which a spray head 5 can be placed.
  • the spray head 5 has on its lower shaft cite 6 an annular flange 7 which extends over the nozzle 4 engages, so that a gas and liquid-tight connection between the container 1 and spray head 5 is made.
  • sealing rings 8 can be located in the interior of the annular flange, which are pressed against the outer wall of the nozzle 4 when the spray head 5 is placed on it.
  • the end face of the connecting piece 4 opposite the lower shaft side 6 has two openings 9 and 10, through which a pressure supply pipe 11 and a riser pipe 12 each protrude. Both tubes 11 and 12 are firmly connected to the spray head 5.
  • the pressure supply pipe 11 projects so far beyond the lower shaft side 6 of the spray head 5 that it just extends through the upper end wall of the nozzle 4.
  • the pressure supply pipe 11 is not immersed in the liquid 2.
  • the riser pipe 12 below the lower shaft side 6 of the spray head 5 has such a length that it extends almost to the bottom 13 of the container 1.
  • the riser pipe 12 is connected to a filter 14, which prevents larger particles or assemblies from being transported upwards through the riser pipe 12, which would lead to the spray head 5 becoming blocked. So that after insertion of the riser pipe 12 through the opening 10 of the filter 14 can be connected to the lower end of the riser pipe 12, the nozzle 4 can be removed from the container 1, for example unscrewed.
  • the spray head 5 which is preferably at right angles, has a pusher 15 on the shaft 5 a or leg connected to the container 1, which is located below the shaft 5 b of the spray head 5 that is horizontal in the figure.
  • the pusher 15 comprises a grip strip 16, which preferably has a plurality of concave recesses (not shown) on the outside, into which the fingers of a user using the spraying device can be inserted.
  • the grip bar 16 is connected to a guide rod 17 which can be moved back and forth in the axial direction within a guide channel 18.
  • On the guide rod 17 is a compression spring 19, which is supported on the one hand on the handle bar 16 and on the other hand on the inner end face 20 of the guide channel 18.
  • the compression spring 19 causes the grip strip 16 to be moved back into its rest position after it has been actuated.
  • Guide rod 17, guide channel 18 and compression spring 19 are dimensioned so that a secure guidance of the handle bar 16 is possible.
  • those elements by which the grip strip 16 with the guide rod 17 and the compression spring 19 fall out of the guide channel 18 are not shown. These are generally known elements that can be used by the person skilled in the art if required.
  • the guide channel 18 preferably runs perpendicular to the outer wall of the shaft 5a and parallel to the horizontal shaft 5b and is designed as a cylindrical blind hole. Accordingly, the guide rod 17 has a circular cross section.
  • a pump rod 21 running parallel to the guide rod 17 is fixedly connected to the handle bar 16.
  • the opposite end of the pump rod 21 is a piston 22 which can be pushed back and forth in a pressure cylinder 23 when the handle 16 is actuated.
  • the pressure cylinder 23 is also designed as a cylindrical blind hole, the opening of which lies on the side of the shaft 5a which is below the horizontal shaft 5b.
  • the pressure cylinder 23 is parallel to the guide channel 18.
  • Pistons 22 and pressure cylinders 23 preferably have circular cross sections which are coordinated with one another in such a way that when the handle strip 16 is actuated, the air between the piston 22 and the rear end face 25 of the pressure cylinder 23 is compressed .
  • the piston 22 can also be covered with an elastic sealing plate 26 which, when the piston 22 moves in the direction of the rear end face 25, bears closely against the inner wall of the pressure cylinder 23.
  • the pressure cylinder 23 is connected to a pressure channel 27 which leads to the inlet of a first valve 28, the outlet of which is connected to the pressure supply pipe 11.
  • the first valve 28 is designed as a check valve and has a ball 31 located in a conical channel 29 in front of a channel opening 30, which ball is pressed against the edge of the channel opening 30 by a compression spring 32.
  • the conical passage 29 which opens in the direction of D ruckver- sorgungsrohres 11 is, in this case formed by an annular element 33 which is located within a cylindrical chamber 34 within the Versprühkopfes. 5
  • the compression spring 32 is supported on the ball 31 on the one hand and on the other hand on that wall the chamber 34 from which the pressure supply pipe 11 branches off.
  • a second valve 35 is arranged inside the spray head 5 above the guide channel 18.
  • This second valve 35 is connected on the inlet side to the riser pipe 12 via a corresponding channel 12a running inside the spray head 5 and on the outlet side via a channel 12b also running in the spray head 5 to an outlet nozzle 36, the nozzle diameter of which is adjustable.
  • the second valve 35 is formed by a blind hole 37, which has likewise been introduced into the shaft 5a of the spray head 5 from the side of the grip strip 16 and which runs parallel to the guide channel 18.
  • This second valve 35 also has a ball 40 located in a conical channel 38 in front of a channel opening 39, which is pressed by a compression spring 41 against the edge of the channel opening 39.
  • an annular element 42 lies in the central region of the blind hole 37 and coaxially therewith, the central opening 39 of which is conically widened in the direction of the rear face 43 of the blind hole 37.
  • the blind hole 37 is divided into a first and a second valve chamber 44 and 45 by the annular element 42.
  • the first valve chamber 44 is connected to the channel 12a to the riser pipe 12 and the second valve chamber 45 to the channel 12b to the outlet nozzle 36.
  • Ball 40 and compression spring 41 thus lie in the first valve chamber 44.
  • the compression spring 41 is supported on the ball 40 on the one hand and on the other hand on the rear face 43 of the blind hole 37.
  • the opening of the blind hole 37 located in the region of the grip strip 16 is sealed with a sealing element 46, which in turn has a central opening, through which a shift rod 47 projects.
  • This switching rod 47 passes through the second valve chamber 45 and has one end within the channel opening 39, while the other end protrudes from the shaft 5a of the spray head 5.
  • the shift rod 47 is displaceable in the axial direction so that the ball 40 can be moved by it against the force of the compression spring 41 in order to open the channel opening 39.
  • the axial displacement of the shift rod 47 takes place on the one hand with the aid of the grip bar 16 and on the other hand by the compression spring 41.
  • the length of the end of the shift rod 47 protruding from the shaft 5a is selected so that it is only then shifted to the ball 40 by the grip bar 16 when the grip bar 16 has been displaced in the direction of the shaft 5a over a predetermined distance.
  • This predetermined distance can, for example, correspond to a desired stroke of the piston 22 in the pressure cylinder 32.
  • An annular end plate 48 can be arranged in front of the sealing element 46, the space between the sealing element 46 and the shift rod 47 being sealed by an additional sealing ring 49.
  • the shift rod 47 has, as is to be mentioned, a diameter which is smaller than the inside diameter of the channel opening 39, so that in the open state of the second valve 35 liquid through the space between the annular element 42 and the shift rod 47 into the second valve chamber 45 can occur.
  • the switching rod 47 is also supported by the sealing element 46 and the annular element 42.
  • the first step is to generate a pressure in the free space 3 above the liquid 2 within the Container 1 actuated the handle bar 16.
  • the grip strip 16 is shifted one or more times by hand in the direction of the shaft 5a without it coming into contact with the shift rod 47.
  • the piston 22 is simultaneously displaced in the pressure cylinder 23, so that air is compressed by the pump device consisting of piston 22 and pressure cylinder 23.
  • the first valve 28 opens, so that the compressed air passes through the channel opening 30 and the pressure supply pipe 11 into the container 1.
  • the spray head 5 is preferably made of plastic, but can also be made of metal or another suitable material.
  • the spray head 5 can consist of a full plastic blank, in the chambers for the first and second valves 28, 35, a chamber for the pressure cylinder 23, the guide channel 18 and connecting channels 12b, 12a, 27 and 11 between outlet nozzle 36 and second valve 35, second valve 35 and riser pipe 12, pressure cylinder 23 and first valve 28 and first valve 28 and bottom side 6 of the spray head 5 are introduced.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP87100746A 1986-01-24 1987-01-20 Pulvérisateur de liquide actionné par de l'air comprimé Expired - Lifetime EP0230968B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100746T ATE57628T1 (de) 1986-01-24 1987-01-20 Druckluftbetriebene versprueheinrichtung fuer fluessigkeiten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8601783U DE8601783U1 (de) 1986-01-24 1986-01-24 Druckluftbetriebene Versprüheinrichtung für Flüssigkeiten
DE8601783U 1986-01-24

Publications (3)

Publication Number Publication Date
EP0230968A2 true EP0230968A2 (fr) 1987-08-05
EP0230968A3 EP0230968A3 (en) 1988-07-06
EP0230968B1 EP0230968B1 (fr) 1990-10-24

Family

ID=6790899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100746A Expired - Lifetime EP0230968B1 (fr) 1986-01-24 1987-01-20 Pulvérisateur de liquide actionné par de l'air comprimé

Country Status (3)

Country Link
EP (1) EP0230968B1 (fr)
AT (1) ATE57628T1 (fr)
DE (2) DE8601783U1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958754A (en) * 1989-03-01 1990-09-25 Continental Sprayers, Inc. Dispenser or sprayer with vent system
EP0460795A1 (fr) * 1990-06-05 1991-12-11 Tomei Sangyo Co., Ltd. Dispositif pour purifier un liquide avec une pompe à air incorporée dans le corps du couvercle d'un récipient
US5366122A (en) * 1991-08-27 1994-11-22 Ing. Erich Pfeiffer Gmbh & Co. Kg Dispenser for flowable media
US5480069A (en) * 1993-07-23 1996-01-02 Chesebrough-Pond's Usa Co. Aerosol dispensing device
ES2216726A1 (es) * 2004-04-30 2004-10-16 Goizper, S. Coop. Pulverizador manual para horticultura y similares.
CN103977924A (zh) * 2014-06-10 2014-08-13 浙江普莱得电器有限公司 一种喷枪
US11292020B2 (en) * 2018-06-29 2022-04-05 Aptar France Sas Fluid product dispenser

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2757786B1 (fr) * 1996-12-26 1999-03-26 Sanofi Sa Ensemble de conditionnement de liquide, notamment d'un produit cosmetique ou d'un medicament
CN102495001A (zh) * 2011-12-13 2012-06-13 无锡市新峰管业股份有限公司 渗透探伤着色液的喷涂装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1045066A (fr) * 1950-11-14 1953-11-24 Taehle K G G Pulvérisateur de iquides, en particulier d'encaustique
DE906200C (de) * 1951-12-30 1954-03-11 Max Symanzik Mittels Pressluft betriebener Handzerstaeuber, insbesondere fuer Fluessigkeiten
GB1217831A (en) * 1966-11-17 1970-12-31 Ass Sprayers Ltd Improvements in or relating to, pressurized liquid dispensers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1045066A (fr) * 1950-11-14 1953-11-24 Taehle K G G Pulvérisateur de iquides, en particulier d'encaustique
DE906200C (de) * 1951-12-30 1954-03-11 Max Symanzik Mittels Pressluft betriebener Handzerstaeuber, insbesondere fuer Fluessigkeiten
GB1217831A (en) * 1966-11-17 1970-12-31 Ass Sprayers Ltd Improvements in or relating to, pressurized liquid dispensers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958754A (en) * 1989-03-01 1990-09-25 Continental Sprayers, Inc. Dispenser or sprayer with vent system
EP0460795A1 (fr) * 1990-06-05 1991-12-11 Tomei Sangyo Co., Ltd. Dispositif pour purifier un liquide avec une pompe à air incorporée dans le corps du couvercle d'un récipient
US5120438A (en) * 1990-06-05 1992-06-09 Tomei Sangyo Co., Ltd Liquid purifying device incorporating air pumping means within container lid body
US5366122A (en) * 1991-08-27 1994-11-22 Ing. Erich Pfeiffer Gmbh & Co. Kg Dispenser for flowable media
US5480069A (en) * 1993-07-23 1996-01-02 Chesebrough-Pond's Usa Co. Aerosol dispensing device
ES2216726A1 (es) * 2004-04-30 2004-10-16 Goizper, S. Coop. Pulverizador manual para horticultura y similares.
WO2005105319A1 (fr) * 2004-04-30 2005-11-10 Goizper, S. Coop. Pulverisateur manuel pour l'horticulture ou analogues
CN1921951B (zh) * 2004-04-30 2011-05-18 高兹派尔有限公司 园艺及类似用途的手持喷雾器
CN103977924A (zh) * 2014-06-10 2014-08-13 浙江普莱得电器有限公司 一种喷枪
US11292020B2 (en) * 2018-06-29 2022-04-05 Aptar France Sas Fluid product dispenser

Also Published As

Publication number Publication date
ATE57628T1 (de) 1990-11-15
DE8601783U1 (de) 1986-06-05
EP0230968A3 (en) 1988-07-06
EP0230968B1 (fr) 1990-10-24
DE3765644D1 (de) 1990-11-29

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