CN87104268A

CN87104268A - Donor

Info

Publication number: CN87104268A
Application number: CN87104268.1A
Authority: CN
Inventors: 阿尔弗莱德·万·舒克曼
Original assignee: Mega Plast Product-U Verpackungsentwicklung Marketing Bmbh & Co
Current assignee: Mega Plast Product-U Verpackungsentwicklung Marketing Bmbh & Co
Priority date: 1986-06-21
Filing date: 1987-06-18
Publication date: 1987-12-30
Also published as: ATE55968T1; DE3764547D1; BR8703087A; ZA874438B; EP0250965B1; ES2017673B3; DE3620897A1; KR890000160A; PT85101B; EP0250965A1; JPS6312461A; PT85101A; CN1007419B

Abstract

A kind of donor (or distributing box) of pressing component output fluid and soft paste, this donor has an output unit that is contained on the bottleneck (3), a delivery valve (V2) and the manipulation head (16) that delivery port is arranged.This manipulation head (16) is in the top of flexible pump chamber wall, and passes pump chamber (10) by sleeve (N) guiding of pump chamber (10) bottom (8).Being characterized as of this donor: the sleeve wall that sealing ground constitutes the pump chamber base plate extends to pump intake valve chamber (35) to bottle interior, handling head (16), to be positioned at the part of sleeve star-shaped, and the narrow rib that has a star rib (19) at least by a stop protrusion (20) of sleeve (N) upper limb spacing.

Description

Donor

The present invention relates to be used for donor by deal output fluid and soft paste, this donor has an output unit that is contained on bottleneck or the analogue.This device has a delivery valve and the manipulation head that the side delivery orifice is arranged.Handle the top that head is in flexible pump chamber wall, and in the sleeve that forms at the bottom of the pump chamber, walk by pump chamber.

This class donor is by known in the european patent application 0035588.The sleeve that head is handled in guiding has spoke, and they distribute along the whole transverse width of cylindrical donor shell.Handle the sealing tubule of the bar that an is guided formation towards outer casing bottom.There are some holes at tubule pipe end place separated by a distance therewith, and output goes to tubule inside by these holes, output there after the delivery orifice of side go out.These holes and be to play valve round their internal surface of sleeve pipe hermetically at home position, they have constituted described delivery valve.When pressing down, open in these holes at output unit.At this moment the medium that extrudes is gone into the inside of bar by orifice flow, last forced stroke by described pioneer set follow liquid level and the unidirectional pressure base plate that ends that changes is limited.Because rod end oppositely moves with it, so between at the bottom of pressure base plate and the unlimited pump chamber, stay the more residue output that can not discharge.

Task of the present invention is a kind of this type of technology of design donor simple, easy to use, can accomplish the material that the ground discharge of essentially no residue is packed into.

The invention described by claim 1 realizes this task.

Dependent claims is the detailed structure that donor of the present invention has various advantages.

The donor of this structure has improved in-use performance, and material storing room and pump chamber obviously separate.No longer stay the discharge neutralizing zone of some levels size.Medium directly arrives pump chamber through sleeve with straight-though approach, shifts arduously so eliminated the medium that when ointment shape material, occurs especially, but by pump district moving linearly.This simple in structure, suitable.Particular case is: the sleeve wall that sealing ground constitutes the pump chamber base plate extends to the pump intake valve chamber to bottle interior, it is star-shaped to handle a part that is positioned at sleeve, and has at least the narrow rib of a star rib spacing by the following institute of a stop protrusion of sleeve upper limb.In addition, these measures are fairly simple in configuration aspects, and sealing is reliable, and taking out under situation easy and simple to handle to the greatest extent of helping accomplishing being sought.Especially to inhaling Cheng Eryan best precondition is arranged.In addition, adopt the truncated cone shape bellows to make the pump chamber wall and also proved advantageous.This flexible pump chamber wall reduces owing to produce uniform volume, so off normal can not occur according to the ripple bending.At the pressurization controlsurface hour, power is distributed on the whole bellows body.At the bottom of the pipe of bellows towards bottleneck.By outputting material on purpose under the situation that prevents to rotate between a star rib and the sleeve stop protrusion at least.Helping stressed collet structure is to obtain like this, and promptly the star rib comes to a point towards an end of bottle, that is its back shovel is cut into mountain valley shape.This causes forming in the center of handling head rod a clearance envelope that allows elastic deformation on the one hand, but economical with materials on the other hand, and this point is still currently to be concerned about.The star rib is from handling the cross wall of head, and this structurally is advantageous, extends a pump output valve chamber on cross wall, and it makes the part of adjoining each other form a mutual stable structure.The present invention also advises in addition, and the pressure surface that adds of handling head is made of a wall that snaps in spring collet, the delivery valve spring be connected in it below.Therefore it has multiple function: constitute add pressure surface, as the lid of this spring housing, and inconjunction with delivery valve spring.The shortcoming that spring is separated with it is, can be because of the carelessness neglected loading when assembling pump assembly.At last, the present invention advises that also the diapire of pump intake valve chamber extends into the connector bushing of suction hose.Thisly be called the suction hose of pipette even can directly form, thereby can further reduce number of parts by sleeve pipe.At last, what have advantage is, the pump chamber base plate is provided with induction opening towards the output unit sidewall of bottle interior one side, extend a valve seat areal of support in outside separated by a distance with it, induction opening front, bellows leans against on this face towards the end face outer rim of bottle one side, this outer rim is one freely stretches out, but when air sucks at interval annular chamber the out-of-position boss.Consider that the pump output unit is to be chosen to be axially symmetric structure, set a plurality of holes can be along the circumference rectangular distribution.

Content of the present invention further specifies by means of pictorial embodiment.Wherein:

Lateral plan when Fig. 1 donor is in home position,

The top view of Fig. 2 donor,

When Fig. 3 donor is in home position, press the section-drawing of Fig. 2 III-III line,

Fig. 4 and Fig. 3 corresponding view, but at this moment pump is in control position,

Fig. 5 presses the section-drawing of V among Fig. 3-V line.

The output device 1 that is designed to measuring pump is contained on the neck 2 of bottle 3, and they link by screw thread. Neck 2 at bottle has corresponding external screw thread 4 for this reason, and the internal thread 5 on the threaded cover is screwed in above the external screw thread. The outside of its cylindrical cap cover wall 6 is shaped with the axial groove 7 that improves frictional force.

The top cover of threaded cover is the partition wall of the pump chamber 10 of the material storing room 9 of bottle 3 and output device above it 1.

The central authorities of pump chamber base plate 8 form the sleeve N of a cylindrical and axle collar shape. It links to each other with the extension 11 of base plate 8 towards bottleneck, and extends towards material storing room 9 and pump chamber 10 both directions with respect to pump chamber base plate 8. Here form a narrow annular chamber 12 between the outer surface of said extension 11 and sleeve N. From then on sleeve N rises at the end of extension 11, with same internal diameter up and down both direction extend axially identical length. Its length in fact internal diameter with extension 11 is identical.

Base plate 8 towards the extended surface of bottleneck along bottleneck end face 2 ' the direction transition be annular wall 13, be transformed into cylindrical cap cover wall 6 in order to work therefrom the horizontal annular step that forms a sensing outside, and by the projection of the wall of corresponding position consisted of a sealing convex shoulder 13 '.

Annular wall 13 then develops into flange 15 in another direction, and it is upwards also slightly outside from pump chamber base plate 8. The bellows B that consists of flexible pump chamber wall is clipped on the flange 15 towards the termination of bottle one side. Bellows is contained in the manipulation 16 of output device 1 towards the other end of top, and it just in time is inserted in the annular chamber 17. Certainly also can use the connection form of collet herein.

Handling 16 can move in sleeve N, and axial retention is arranged.Its bottom extends to the cross-sectional plane of star, and especially the criss cross bar 18.Spacing as under the extended state is the narrow rib 19 that makes at least one star rib 19 ' stopped by the following of a stop protrusion 20 of sleeve N upper limb inboard.With stop protrusion 20 cooperative stop convex shoulders 21 on bar, be by radially widen when the home position narrow rib 19 below the stop protrusion 20 ' adjacent country formation.This spring collet technology of all in the present embodiment narrow ribs 19 ' all adopt.

As shown in Figure 3, right side star rib 19 is made the bigger star shadow rib 19 of width at the cross-sectional plane at place, stop protrusion 20 places.Sleeve N then is cut open in this district, and switches to the root of extension 11 always, has formed a shaft orientation opening groove 22 from top to bottom, and the part 19 that star rib 19 is radially outward widened at this place ' insertion wherein.Thereby prevented handle 16 and sleeve N between relatively rotate.In for example considering the operating handle that is contained on the bottle, be provided with and be used for preventing that corresponding the rotation from being necessary when handling this output unit of a delivery channel 23 16 side direction discharges, the beak-like discharge orifice.Discharge orifice represents that with label 24 it is in outside the bottle maximum cross section, and this just allows the object in the destination use bottle.

Star rib 19 comes to a point towards bottle one end, and is promptly cut from the central cross core of bar 18 itself.Thereby improved elasticity, the star rib can flexibly radially inwardly be dodged.The grooving 25 that upwards diminishes gradually of wedge shape is higher than the upper limb of sleeve.The core of bar is then from oppositely exceeding the lower end of star rib 19.Cut sth. askew in the outer rib end of star rib 19, stop protrusion 20 more easily is inserted in when making assembling.Antithesis, barre then must add bigger pulling force when sleeve unloads.This structure also can be designed to non-disconnectable.

On the top of bar 18, handle chamber 26 of 16 formations.The latter is used for settling a pump delivery valve V2.Its valve seat areal of support 27 is positioned on the cross wall 28, and star rib 19 is from the downside of cross wall.Valve disc 14 is spherical, and its handle that makes progress is a criss cross.Vertical wall of handle is guided on the wall of chamber 26.Valve hole 29 reaches in the pump district of cross bar 18 always.The diameter in hole is greater than the thickness of star rib 19, thereby forms a good window.

Pump delivery valve V2 receives spring force.Spring 30 is annular solids, and the bottom of the wall 31 that links to each other with chamber 26 of formation.The latter is a lid that snaps in by elasticity, it top basically with handle 16 above flush, handle a part of 16 thereby constituted.

Delivery channel 23 feeds the chamber 26 of flowing through medium from the side.

Output unit 1 forms a connector bushing 32 towards an end of bottle interior, be used to connect arrive always a bottle end 3 ' suction hose 33.It will be designed to or cut in the hole of bottom it can not be sealed by the bottle diapire.Need not thisly be inserted in the suction hose 33 that also is called pipette in the sleeve pipe of sleeve N lower end, also can directly form suction tube 33 by sleeve pipe.

On the top of this locations of structures, sleeve forms a chamber 35 that is used to install pump intake valve V1 at a cross-sectional plane reduced area 34.The structure of this valve is the same with that valve that is arranged in chamber 26.

Valve seat areal of support 36 is equally on the cross wall shape boss of a diapire that forms by constricted cross section 37.Align with the internal diameter of suction hose 33 in valve hole 38.

For pump intake valve V1 can not being slipped into from chamber 35 upward movements be adjacent and go the bigger sleeve cavity of cross-sectional plane, so the annular convex shoulder 39 that has a cross-sectional plane that makes pump intake valve V1 place chamber to dwindle slightly in transition region.

For the volume that can come compensation medium to be sucked out with the air of outside, on the columned annular wall 13 of threaded cover, below pump chamber base plate 8, that side of promptly aiming at material storing room 9 is provided with an induction opening 40 at least.Establish three in the present embodiment along circumference well-distributed hole.Before induction opening 40, extend outward a valve seat areal of support 41 with it separated by a distancely.It is the sidewall that is designed to outward-dipping groove in circular groove 42, that is it is continuously to rising.On it, placing the lateral surface 43 of bellows towards bottle one end with slight predetermincd tension.The downward marginarium of this of flexible bellow is corresponding bigger toroidal cavity 44 skews of size in the circular groove 42 when aspirated air.Obviously, the cross-sectional plane of this marginarium is reduced, and has therefore formed the flexible lip L that dodges.

The section thickness of the bellows lower end annular protrusion that elasticity snaps in the circular groove of flange 15 is bigger than the general thickness of the truncated cone shape bellows body that constitutes the pump chamber wall.As shown in the figure, pressing under the home position of Fig. 3, be enclosed within the end folding 45 of the ripple 45 on flange 15 outer rims ' upwards carried.When control position, ripple 45 contacts with each other (being flattened), and this gyroscopic movement is being followed with a pressure that has improved the antelabium L of bellows lower edge and is pressed on the valve seat areal of support 41.

Service condition is as follows: along the direction of arrow P, handle crown face 16 ' on add a power, thereby the volume of pump chamber 10 is reduced.Since previous operation and in this chamber through accurately determining the output of dosage, on the situation that delivery valve V2 rises, through valve hole 29, by chamber 26 to delivery orifice 24.The pressure that exists in pump chamber 10 is closed pump intake valve V1 on the other hand.So can not squeeze back or be back in the material storing room 9 at the medium to the pump chamber at the bottom of the sleeve and go through suction hose 33.

After output a part of amount, unclamp the manipulation 16 o'clock of output unit 1 again, just in pump chamber 10, form low-pressure state, thereby open pump intake valve V1, close pump delivery valve V2.Medium enters pump chamber through the access valve V1 that has opened, when bar 18 arrives the terminal location of its stop till.At this moment just can carry out the output next time of medium.

Bellows B is as the retracing spring that causes getting back to home position all the time again.

Handle 16 and move up, make antelabium L leave its valve seat areal of support 41, the medium of taking-up is compensated by the air that enters material storing room 9 through induction opening 40.The elastic construction of antelabium L can prevent that medium flows out when the bottle overturning.

All touch upon in this manual and in the drawings the expression new feature, even do not have in the claims lay special stress on they, also all are main inventions.

Claims

1, donor by deal output fluid and soft paste has an output unit that is contained on bottleneck or the analogue, this device has the manipulation head of a delivery valve and a band side delivery orifice, handle the top that head is in flexible pump chamber wall, and in the sleeve that forms at the bottom of the pump chamber, walk by pump chamber, it is characterized by: the sleeve wall of osed top pump chamber base plate (8) extends to pump intake valve chamber (35) to bottle interior, handle the part that head (16) is positioned at sleeve (N) and be star, and the narrow rib (19 ') of at least one star rib (19) following spacing by a stop protrusion (20) of sleeve (N) upper limb.

2, according to the described donor of claim 1, it is characterized by: adopt truncated cone shape bellows (B) to make the pump chamber wall.

3, according to the described donor of the one or several claims of aforementioned all claims, it is characterized by: between a star rib (19) and sleeve (N) stop protrusion (20), prevent from least to rotate.

4, according to the described donor of the one or several claims of aforementioned all claims, it is characterized by: star rib (19) comes to a point towards an end of bottle.

5, according to the described donor of the one or several claims of aforementioned all claims, it is characterized by: star rib (19) extends a pump output valve chamber (26) from handling the cross wall (28) of head (16) on cross wall.

6, according to the described donor of the one or several claims of aforementioned all claims, it is characterized by: the pressure surface (16 ') that adds of handling head (16) is made of a wall (31) that snaps in spring collet, the spring (30) of delivery valve (V2) be connected in it below.

7, according to the described donor of the one or several claims of aforementioned all claims, it is characterized by: the diapire (37) of pump intake valve chamber (35) extends into the connector bushing (32) of suction hose.

8, according to the described donor of the one or several claims of aforementioned all claims, it is characterized by: pump chamber base plate (8) is provided with induction opening (40) towards output unit (1) sidewall (13) of bottle interior one side, extend a valve seat areal of support (41) in outside separated by a distance with it, induction opening front, bellows (B) leans against on this face towards the end face outer rim of bottle one side, this outer rim is one can freely stretch out, when air suck at interval annular chamber (44) but the time out-of-position antelabium (L).