CN1317082C - Distribution pump for a liquid product - Google Patents
Distribution pump for a liquid product Download PDFInfo
- Publication number
- CN1317082C CN1317082C CNB038085615A CN03808561A CN1317082C CN 1317082 C CN1317082 C CN 1317082C CN B038085615 A CNB038085615 A CN B038085615A CN 03808561 A CN03808561 A CN 03808561A CN 1317082 C CN1317082 C CN 1317082C
- Authority
- CN
- China
- Prior art keywords
- piston
- pump
- pump housing
- convex shoulder
- distribution locations
- 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.)
- Expired - Fee Related
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Images
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
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1019—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element the inlet valve moving concurrently with the controlling element during whole pressure and aspiration strokes, e.g. a cage for an inlet valve ball being part of the controlling element
-
- 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
-
- 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
- B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
- B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
Abstract
The invention relates to a manually actuated distribution pump for a liquid product, said pump comprising a housing (10) and a piston (50) which slides in a sealed manner inside said housing (10), between a normal position and a distribution position. Said piston (50) comprises at least one lower sealing lip (51) which is in contact with the pump housing (10) in a sealed manner, and the pump housing (10) has a shoulder which extends radially inwards (11) and co-operates with the lower sealing lip (51) of the piston (50) in order to form an abutment for the piston (50) and to define its distribution position. The inventive distribution pump (10) is characterised in that the pump housing comprises an axial annular cut-away part (15) in the region of the radial shoulder (11), which causes the active sealing part (53) of the lower lip (51) to be at a distance from the radial shoulder (11) in the distribution position of the piston (50), such that no axial force is exerted on said external part (53).
Description
Technical field
The present invention relates to a manual operated fluid product dispensing pump, and comprise the fluid product dispensing device of described pump.
Background technology
As everyone knows, pump has a pump housing usually, and piston slippage between a resting position and a distribution locations is arranged in the described pump housing, and the user pushes described piston to its distribution locations, to distribute the product in the described pump, in for example pump chamber.Pump generally includes the device that can determine resting position and the device that can determine the piston distribution locations.Described device generally is embodied as the stop shape, and described stop has been determined the end position of piston.A known convex shoulder that utilizes in the pump housing, the stop of distribution locations is determined in enforcement, and like this, when piston abuts was on described convex shoulder, piston can't move with respect to the pump housing again, and this has promptly determined the starting end position or the distribution locations of piston.
But there is a defective in described enforcement.Therefore, during each operating pumps, the piston seal lip, the movable part of especially described sealing lip promptly forms the part of sealing contact between the sealing lip and the pump housing, is resisted against radially on the convex shoulder, and like this, described movable part branch meets with stresses or axial force.The multi-pass operation of pump process, the piston seal lip, especially its movable sealing part can be out of shape or damage, thereby causes the reduction of pump performance.Equally, when pump was installed, by mounter, piston was often shifted to its distribution locations.Described mobile embodiment is more fierce relatively, in any case, much violent when all using pump than the user.In the case, when the assembling pump, the lower seal lip is quite fiercely by hitting on the radially convex shoulder of the pump housing.Therefore, from pump is installed, the piston seal lip just is damaged or damages.
Summary of the invention
The object of the present invention is to provide a fluid product dispensing pump that does not have above-mentioned defective.
Therefore, the object of the present invention is to provide a fluid product dispensing pump, described pump can be protected piston, avoids reducing any possibility of pump performance, thereby prolongs the service life of described pump.
The present invention also aims to provide the fluid product dispensing pump of described type, the production of described pump and installation were both simple, and cost is also low.
The objective of the invention is to propose a manual operated fluid product dispensing pump, described pump comprises a pump housing and a piston, described piston with sealing means in the described pump housing, slippage between a resting position and a distribution locations, described piston comprises at least one lower seal lip that contacts with described pump housing sealing, the described pump housing comprises an inside radially convex shoulder, the lower seal lip cooperation of described convex shoulder and described piston, form a stop of described piston, and definite its distribution locations, it is characterized in that, the described pump housing has an axial annular recess at described radially convex shoulder place, like this, the movable sealing part of lower seal lip can not have any contact with the described radially convex shoulder on the piston distribution locations, like this, does not have any axial force and is applied on the described movable part.
Advantageously, the axial lower edge of piston lower seal lip tilts, and like this, in the time of on being in the piston distribution locations, the non-movable part of lower edge is resisted against on the described radially convex shoulder of the pump housing, and the movable sealing part is then extended in described cannelure.
The present invention also aims to propose to comprise the fluid product dispensing device of said pump.
Description of drawings
Further feature of the present invention and advantage more clearly embody in will be below being described in detail for example with reference to accompanying drawing, with non-limiting way.In the accompanying drawing:
-Fig. 1 is the diagrammatic cross-sectional view according to a fluid product dispensing pump of the present invention; And
-Fig. 2 is the amplification sketch of a part among Fig. 1, shows of the present invention one and optimizes embodiment.
The specific embodiment
Fig. 1 simply illustrates and has used a fluid product dispensing pump of the present invention.But certainly, the present invention only is confined to pump shown in Figure 1, and can be applicable to all pumps---piston slippage in the pump housing is arranged in the described pump, and the starting end position or the distribution locations of piston are determined by a stop of cooperating with the sealing lip of piston.
Pump among Fig. 1 has a pump housing 10, first piston 50 slippage in the described pump housing, and described piston preferably connects starting handle 60, forms a single piece, and advantageously, described starting handle is a hollow, and a playpipe 61 is arranged.The pump of embodiment also has second piston 55 among Fig. 1, the slippage in the reduced part of the pump housing of described piston.Between the described two-piston 50,55 and enter between valve 30 and the delivery valve 40, determined a pump chamber 20.When pump operated, because the diameter difference, second piston 55 moves sooner than first piston, and when the impulse stroke of piston 50 finished, second piston 55 was mechanically opened delivery valve 40.In addition, ring 80 also is fitted in the upper limb of the pump housing 10, to determine the resting position of piston 50, pump shown in the figure can utilize retainer ring 1, be assemblied on the container (not shown), described retainer ring can be arbitrarily, but especially for that can screw, that can inlay or ratchet is brake type.As everyone knows, neck sealing gasket 5 generally is inserted between retainer ring 1 and the container upper limb (not shown).After each operation, spring 70 can be returned to pump on its resting position automatically.
Fig. 2 shows object of the present invention.Can find out that schematic diagram 2 is very simple, exaggerate some shape or distortion among the figure, figure with convenient.
According to the present invention, the pump housing 10 comprises an inside radially convex shoulder 11, and described convex shoulder has been determined the distribution locations of piston 50.For avoiding damaging the sealing lip 51 of piston 50, the movable sealing part 53 of especially described sealing lip 51, the pump housing has an axial annular recess 15 at described radially convex shoulder 11 places.Therefore, when piston 50 is on the distribution locations, i.e. position as shown in Figure 2, the movable sealing part 53 of lower seal lip 51 can not contact with convex shoulder 11 radially, and in 15 li extensions of described axial annular recess, like this, do not have any power or axial stress and be applied on the described movable part 53.Therefore, when the described distribution locations 50 of piston arrives, described movable part neither can deform, and also can not be damaged.When assembling, operating pumps, promptly be like this.
As shown in simple among Fig. 2, the lower edge 54 of the lower seal lip 51 of piston 50 can tilt, like this, the non-movable part of lower edge 54 contacts on the described radially convex shoulder 11 that is resisted against on the described distribution locations, and movable sealing part 53 does not reach described radially convex shoulder, and in 15 li extensions of described axial groove.On rest position, movable part 53 promptly forms the part that seals, when not touching the end of described axial groove 15, and the radial dimension of described cannelure 15 and/or the degree of depth, but the F-SP of the lower edge 54 of the lower seal lip 51 of fitting piston 50.
Therefore, by the danger of eliminating any damage or the lower edge of piston 50 lower seal lips 51, especially its movable sealing partly being out of shape, the present invention can avoid damaging pump performance, thereby can prolong the service life of described pump.
Although the description of this invention is with reference to according to of the present invention one special embodiment, certainly, those skilled in the art still can carry out any modification to it, and this does not exceed the definite scope of the present invention of the appended attached claim in back.
Claims (3)
1. manual operated fluid product dispensing pump; Described pump comprises a pump housing (10) and a piston (50); Described piston with sealing means in the described pump housing (10), between a static position and a distribution locations, slide; Described piston (50) comprises at least one lower sealing lip (51) that contacts with the described pump housing (10) sealing; The described pump housing (10) comprises an inside radial convex shoulder (11); Described protruding shoulder cooperates with the lower sealing lip (51) of described piston (50); In order to form a spacing device of described piston (50); And definite its distribution locations
It is characterized in that, the described pump housing (10) has been located an axial annular recess (15) at described radially convex shoulder (11), thereby, the movable sealing part (53) of described lower seal lip (51) can not have any contact with the described radially convex shoulder (11) on described piston (50) distribution locations, and then, do not have any axial force and be applied on the described movable part (53).
2. according to the described pump of claim 1, it is characterized in that, the axial lower edge (53) of the lower seal lip (51) of described piston (50) tilts, thereby, when described piston (50) is on the distribution locations, the non-movable part (54) of described lower edge is resisted against on the described radially convex shoulder (11) of the described pump housing (10), and described movable sealing part (53) is then extended in described cannelure (15).
3. device fluid dispensing product is characterized in that, it comprises according to each pump in the aforesaid right requirement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR02/04811 | 2002-04-17 | ||
| FR0204811A FR2838785B1 (en) | 2002-04-17 | 2002-04-17 | FLUID PRODUCT DELIVERY PUMP |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1646232A CN1646232A (en) | 2005-07-27 |
| CN1317082C true CN1317082C (en) | 2007-05-23 |
Family
ID=28686137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038085615A Expired - Fee Related CN1317082C (en) | 2002-04-17 | 2003-04-14 | Distribution pump for a liquid product |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1497038B1 (en) |
| JP (1) | JP2005527354A (en) |
| CN (1) | CN1317082C (en) |
| AU (1) | AU2003262155A1 (en) |
| DE (1) | DE60302057T2 (en) |
| FR (1) | FR2838785B1 (en) |
| WO (1) | WO2003086649A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2913731B1 (en) * | 2007-03-12 | 2013-08-09 | Valois Sas | FLUID PRODUCT DELIVERY PUMP AND DISPENSER HAVING SUCH A PUMP |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0346167A1 (en) * | 1988-05-10 | 1989-12-13 | Lindal Verpackungstechnik Gmbh | Spray pump, which produces pressure before spraying |
| US5207659A (en) * | 1991-04-05 | 1993-05-04 | Societe Technique De Pulverisation - S.T.E.P. | Device for dispensing drops of small volume, in particular for ophthalmological care |
| CN1233579A (en) * | 1998-04-30 | 1999-11-03 | 卡尔玛－蒙图拉斯公司 | Fluid pump dispenser |
-
2002
- 2002-04-17 FR FR0204811A patent/FR2838785B1/en not_active Expired - Lifetime
-
2003
- 2003-04-14 WO PCT/FR2003/001181 patent/WO2003086649A1/en active IP Right Grant
- 2003-04-14 AU AU2003262155A patent/AU2003262155A1/en not_active Abandoned
- 2003-04-14 DE DE60302057T patent/DE60302057T2/en not_active Expired - Lifetime
- 2003-04-14 JP JP2003583648A patent/JP2005527354A/en not_active Withdrawn
- 2003-04-14 CN CNB038085615A patent/CN1317082C/en not_active Expired - Fee Related
- 2003-04-14 EP EP03740603A patent/EP1497038B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0346167A1 (en) * | 1988-05-10 | 1989-12-13 | Lindal Verpackungstechnik Gmbh | Spray pump, which produces pressure before spraying |
| US5207659A (en) * | 1991-04-05 | 1993-05-04 | Societe Technique De Pulverisation - S.T.E.P. | Device for dispensing drops of small volume, in particular for ophthalmological care |
| CN1233579A (en) * | 1998-04-30 | 1999-11-03 | 卡尔玛－蒙图拉斯公司 | Fluid pump dispenser |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2838785B1 (en) | 2005-09-09 |
| EP1497038A1 (en) | 2005-01-19 |
| FR2838785A1 (en) | 2003-10-24 |
| AU2003262155A1 (en) | 2003-10-27 |
| CN1646232A (en) | 2005-07-27 |
| WO2003086649A1 (en) | 2003-10-23 |
| JP2005527354A (en) | 2005-09-15 |
| DE60302057T2 (en) | 2006-08-03 |
| DE60302057D1 (en) | 2005-12-01 |
| EP1497038B1 (en) | 2005-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |