EP0245319A1 - Vorrichtung zum fördern von viskosen materialien, wie flüssigkeiten, creme, pasten oder dergleichen aus einem vorratsbehälter. - Google Patents
Vorrichtung zum fördern von viskosen materialien, wie flüssigkeiten, creme, pasten oder dergleichen aus einem vorratsbehälter.Info
- Publication number
- EP0245319A1 EP0245319A1 EP86906280A EP86906280A EP0245319A1 EP 0245319 A1 EP0245319 A1 EP 0245319A1 EP 86906280 A EP86906280 A EP 86906280A EP 86906280 A EP86906280 A EP 86906280A EP 0245319 A1 EP0245319 A1 EP 0245319A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- piston rod
- ring seal
- pump
- cylinder
- 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
Links
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
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
Definitions
- the invention relates to a device according to the preamble of claim 1.
- the object of the invention is to improve a device of the type specified in the preamble of claim 1 in such a way that a higher degree of security when sealing the ventilation duct is achieved with simple means.
- the embodiment according to claim 4 has the advantage that the outlet of the piston pump is only open when substances are conveyed by means of the piston pump, but otherwise the aforementioned outlet is blocked by means of the ring seal tightly fitting against the piston, so that when not in use the device no medium can pass the outlet line.
- the suction line is additionally blocked when the piston rod is pressed into the cylinder.
- the piston rod can be locked in its end positions only by turning the piston rod about its longitudinal axis, so that an unintentional actuation of the piston pump is prevented.
- the end position of the piston rod can also be positively fixed, in which the suction line is also blocked.
- Figure 1 shows a device for conveying viscous substances from a storage container in the starting position, in the front view, partially in longitudinal section.
- Fig. 7 shows another embodiment, partially in longitudinal section.
- This device essentially comprises a piston pump, which is held on a screw cap 1, by means of which the piston pump can be attached to the mouth of a storage container (not shown) in such a manner that the suction pipe 5 of the piston pump extends into the storage container .
- the piston pump consists of a cylinder 2, a piston rod 9, a piston 16, a return spring 17 and two valves 6 and 29, each closing against the direction of delivery by gravity.
- Closing springs can also be assigned to the valves. Furthermore, the piston rod 9 is penetrated by a delivery channel 11 extending in its longitudinal extent. The piston rod 9 is longitudinally adjustable in a bore 32 of the screw cap cover. From the inside of the screw cap 1 strives for a coaxial arrangement with the bore 32, the same width in the clear width
- a ventilation opening 24 is arranged in the cylinder 2 between its upper mouth and the piston 16 standing in the upper end position (FIG. 1).
- a circumferential shoulder 30 is formed, which is blown into an undercut of a cover part connected to the screw cap 1.
- the piston 16 is fastened to the piston rod 9 and has a molded-on, relatively soft, cuff-like ring seal 19, which rests tightly against the inside of the cylinder 2 under elastic prestressing and which is formed by the
- Piston 16 still strives for a relatively soft seal 21 which is smaller in diameter than the diameter of cylinder 2 and is designed as a sleeve and which, in the upper end position of piston 16 (FIG. 1), tightly closes socket 8 and thus the air gap 10 closes.
- the screw cap 1 is preferably assembled from two individually prefabricated parts which are connected to one another by means of a corner connection secured by catches.
- a piston pump is held on a screw cap 1 for detachable and tight connection of a storage container, not shown, flowable medium, for example perfume or cream, whose cylinder 2 is smaller in diameter than that clear width of the screw cap 1 is.
- the piston pump is also arranged coaxially with the screw cap 1.
- the cylinder 2, which is open at the top, is closed by means of an end wall 3 which is connected to the screw cap 1 by means of a plug-in connection secured by detents.
- a connecting piece 4 is formed, in which a suction line 5 engages tightly.
- a valve body 6, which automatically closes by gravity against the conveying direction of the medium, is arranged, which cooperates with a valve seat 7 arranged in the connecting piece 4.
- a guide bushing 8 is formed which is directed into the cylinder's displacement
- the piston rod 9 is penetrated by a channel 11 forming the outlet line of the piston pump.
- a pin 12 is frictionally inserted.
- a longitudinal groove 14 is arranged in the pin 12, which opens on the one hand into the channel 11 at the top, and on the other hand into a lateral one
- the piston 16 of the piston pump is mounted such that it can be adjusted axially to a limited extent, which is in tight contact with the ring seal 13 in one end position and in the
- the piston rod 9 is assigned a return spring 17 which is arranged with a prestress and is located on the one hand on the pin 12 and on the other hand
- the piston 16 has an integrally formed, collar-like ring seal 19 which interacts with the cylinder 2 and strives from the piston end face facing the suction line 5.
- a connecting piece 20 encompassing the piston rod is formed on the other side of the piston.
- a cuff-like ring seal 21 is formed on the piston coaxially with this, which comprises the guide bushing 8.
- Two annular, raised sealing seats 22 and 23, which are arranged one behind the other at an axial distance, are formed on the outside of the latter.
- a ventilation opening 24 is provided in cylinder 2, above piston 16.
- a cam 25 strives from the inside of the guide bushing 8 and engages in an adjustable manner in a longitudinal groove 26 of the piston rod 9.
- the groove 26 has at both end parts a groove extension 27 running in the circumferential direction, the lengths of which correspond at least to the width of the cam 25.
- the channel 11 is also blocked in the lower piston end position because the ring seal 13 plunges tightly into a sealing seat 28 formed in the cylinder 2.
- the latter can optionally be fixed relative to the cylinder 2, for which purpose only the piston rod 9 has to be rotated about its longitudinal axis until the cam 25 engages in one of the groove extensions 27 extending in the circumferential direction.
- any excess pressure which may arise in the container provided with the device produces an improved seal with respect to the ventilation line, since the seal 21 is pressed against the sealing seat 22 or 23 corresponding to the position.
- FIG. 6 shows a view of the latching connection of piston rod 9 and guide bush 8.
- the piston rod 9 can be axially displaced in accordance with the longitudinal groove 26 via the cam 25 striving from the guide bush 8, while in the lower and upper end position there is a rotation in the radial direction through the groove extensions 27 for the purpose of locking under spring tension can.
- All parts of the device, with the exception of the return spring 17, are preferably made of plastic and are produced by archiving. If, according to FIG. 7, material to be conveyed has been sucked into the displacement 31 and the piston rod 9 is pressed down against the force of the spring element 17, the piston 16, which is axially limitedly adjustable on the piston rod 9, is axially supported on a shoulder 33 of the piston rod 9 and becomes taken away from the latter.
- Ventilation opening 24 can flow into the container, not shown, connected to the screw cap 1.
- the force of the spring element 17 first re-applies the lip seal 13 to the piston 16, the piston rod 9 leading over the piston 16, and then adjusting the piston 16 to its above starting position.
- the supply of atmospheric air through the ventilation opening 24 is maintained until shortly before the latter is reached, so that material to be conveyed is sucked into the displacement 31 again, the valve 6 opening automatically.
Landscapes
- Reciprocating Pumps (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86906280T ATE47987T1 (de) | 1985-11-06 | 1986-11-04 | Vorrichtung zum foerdern von viskosen materialien, wie fluessigkeiten, creme, pasten oder dergleichen aus einem vorratsbehaelter. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8531330U | 1985-11-06 | ||
DE8531330U DE8531330U1 (de) | 1985-11-06 | 1985-11-06 | Vorrichtung zum Fördern von viskosen Materialien, wie Flüssigkeiten, Creme, Pasten oder dgl. aus einem Vorratsbehälter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0245319A1 true EP0245319A1 (de) | 1987-11-19 |
EP0245319B1 EP0245319B1 (de) | 1989-11-15 |
Family
ID=6786974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86906280A Expired EP0245319B1 (de) | 1985-11-06 | 1986-11-04 | Vorrichtung zum fördern von viskosen materialien, wie flüssigkeiten, creme, pasten oder dergleichen aus einem vorratsbehälter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0245319B1 (de) |
DE (2) | DE8531330U1 (de) |
WO (1) | WO1987002976A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5405057A (en) * | 1993-10-21 | 1995-04-11 | Moore; David G. | Manually actuated pump |
DE19756442A1 (de) * | 1997-12-18 | 1999-06-24 | Pfeiffer Erich Gmbh & Co Kg | Spender für Medien |
CN100494008C (zh) * | 2006-06-15 | 2009-06-03 | 丁要武 | 弹簧外置式乳液泵 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1415269A (fr) * | 1963-11-30 | 1965-10-22 | Petite pompe à piston en matière plastique pour vider un récipient muni de cette pompe | |
US3359917A (en) * | 1966-03-01 | 1967-12-26 | Calmar Inc | Liquid dispenser |
ES409434A1 (es) * | 1971-12-16 | 1976-01-01 | Pfeiffer Kunststofftech Gmbh | Perfeccionamientos en los dispositivos para emitir liquidoso productos pastosos o cremosos. |
IT1134954B (it) * | 1981-01-07 | 1986-08-20 | Sar Spa | Pompa ad azionamento manuale per la erogazione sotto pressione di sostanze liquide e/o dense racchiuse in un contenitore sul quale la pompa e' montata |
DE3225910A1 (de) * | 1982-07-10 | 1984-01-12 | Pfeiffer Zerstäuber Vertriebsgesellschaft mbH & Co KG, 7760 Radolfzell | Zerstaeuber- oder dosierpumpe |
-
1985
- 1985-11-06 DE DE8531330U patent/DE8531330U1/de not_active Expired
-
1986
- 1986-11-04 WO PCT/DE1986/000438 patent/WO1987002976A1/de active IP Right Grant
- 1986-11-04 DE DE8686906280T patent/DE3666942D1/de not_active Expired
- 1986-11-04 EP EP86906280A patent/EP0245319B1/de not_active Expired
Non-Patent Citations (1)
Title |
---|
See references of WO8702976A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0245319B1 (de) | 1989-11-15 |
DE3666942D1 (en) | 1989-12-21 |
WO1987002976A1 (en) | 1987-05-21 |
DE8531330U1 (de) | 1986-03-06 |
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