CN102673902A - Foam pump and liquid distributing ejector with same - Google Patents
Foam pump and liquid distributing ejector with same Download PDFInfo
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- CN102673902A CN102673902A CN2012101497351A CN201210149735A CN102673902A CN 102673902 A CN102673902 A CN 102673902A CN 2012101497351 A CN2012101497351 A CN 2012101497351A CN 201210149735 A CN201210149735 A CN 201210149735A CN 102673902 A CN102673902 A CN 102673902A
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Abstract
The invention discloses a foam pump which comprises a liquid chamber pump unit, an air chamber pump unit, a foam forming device and a driving device, wherein the foam forming device comprises one or a plurality of screen nets arranged on a discharge channel and an air-liquid mixing chamber; the liquid chamber pump unit comprises a liquid chamber and a liquid chamber linking device; the liquid chamber linking device is used for conveying liquid from the liquid chamber to the air-liquid mixing chamber through a liquid conveying channel under the linkage of the driving device; the air chamber pump unit comprises an air chamber and an air chamber linking device; the air chamber linking device is used for conveying air from the air chamber to the air-liquid mixing device under the action of the driving device; the the air chamber pump unit comprises a resetting unit which is directly arranged in the air chamber; the liquid chamber linking device comprises a material discharge valve which is arranged at the interaction part of the liquid conveying channel and the air-liquid mixing chamber. Because the material discharge valve is arranged at the interaction part of the liquid conveying channel and the air-liquid mixing chamber, the liquid can directly enter the air-liquid mixing chamber through the liquid conveying channel, and can not be directly remained in a longer liquid conveying channel, and pollution is not caused.
Description
Technical field
The present invention relates to a kind of foam pump, relate in particular to a kind of dispense liquid eductor that comprises this foam pump.
Background technology
Existing foam pump is made up of with the suction fluid cylinder the suction cylinder that outlet communicates, and wherein, the suction cylinder is made up of cylinder block and piston; Bring the fluid check valve on the fluid cylinder into; The piston of suction cylinder links to each other with the piston of suction fluid cylinder, pushes pressure head during use the piston that aspirates cylinder is synchronoused working with the piston of suction fluid cylinder, and the suction fluid cylinder sucks the pure suction of container breast, suction cylinder with air; Emulsion and air mix mutually in the exit and become the foam ejection then, but this infrastructure cost is high.
In addition, patent No. ZL2005200636954 discloses the foam pump of another kind of type, comprises cylinder body, head, plug pipe and spring; Be characterized in being provided with coaxial fluid cylinder and cylinder in the cylinder body, be positioned at the central authorities of cylinder body, the periphery that cylinder is positioned at fluid cylinder under the fluid cylinder, the annular wing of cylinder and head bottom matches; Fluid cylinder matches with the external diameter of plug pipe end; The limited post spacing ring matches with the spacing button of plug pipe, and the inlet of the head of limited post bottom and fluid cylinder bottom constitutes the feed liquor check valve, and the limited post bottom is provided with barb and catches on inlet; Spool is formed the fluid check valve with the plug pipe, surrounds the suction sap cavity between plug pipe, spool and the fluid cylinder; Is connected with valve seat between plug pipe and the head, spring is located between valve seat and the cylinder, and cylinder, plug are managed, surround the suction air cavity between the valve seat, and the valve seat lower end is provided with radially-protruding annular lower disc, valve block on the annular that stretch out vertically on valve seat top; The outlet of outgassing nonreturn valve and fluid check valve is communicated with the nozzle of head.
In the patent No. is 00809356.3 to disclose a kind of eductor of the dispense liquid by Airspray N.V. application; Especially the eductor of form of foam liquid; Which comprises at least a liquid container and at least with the coupled allocation component of the close mode of liquid; This allocation component comprises that one has the liquid pump and a driving head of a liquid inlet and a liquid outlet, and this driving head comprises the distribution openings of an escape route and a dispense liquid, and this driving head also comprises an osed top circumference over cap simultaneously; This eductor comprises that also one can supply the circumferential groove of over cap immigration; This groove comprises an osed top inwall, an outer wall and a bottom, one or more outlet is arranged, wherein near the bottom of groove; The shape of groove is processed: what make inwall is stamped a radial distance p away from a side of bottom to protection, this apart from p greater than clearance distance common between over cap and the inwall.That is,, like this, can prevent that very effectively sealing infiltrates through pump when the internal diameter of the over cap of driving head external diameter greater than existing piston pump.Same company discloses another kind of eductor in the US Pat of US6053364A, it is the closing appliance that economic benefits and social benefits are set when liquid gas mixes.
Applied for that on July 1st, 2011 application number is the foam pump patent of 201110183814.X; This invention relates to a kind of foam pump, in order to draw the liquid in the container and to make this liquid spray foam from nozzle, constitutes shell by pressure head, spiral cover and cylinder; Comprise pressure head, air valve, principal post, big piston, spiral cover, pipe link, valve piston, cylinder, spring and valve in the shell in regular turn; Between pressure head and air valve, be provided with webmaster, spring is located between principal post and air cylinder base, wherein: a webmaster stretches in the pressure head faucet pipe from the below; The lower end of webmaster is communicated with air valve, is provided with filter screen at the webmaster arrival end at least; Air valve is a tubular structure, and the middle part is provided with periphery downwards and the annulus of band convex edge, and pressure head is against the annulus top, and circle ring inner wall is established air inlet duct, and air valve below inside pipe wall is provided with air discharge duct.Because spring places in the air chamber of cylinder, stop itself and the contacting of chemical substance, prevent that spring from getting rusty; Because big valve piston can not link, leak tightness is provided again, the design of webmaster in addition, the foam of ejection is more even.
But there is following problem in above-mentioned foam pump:
At first: the discharging valve is set between liquid supplying passage and liquid chamber, and mixed liquid can remain in the long liquid supplying passage, causes pollution thus easily.
Then, existing webmaster goes out/go into end can be provided with filter screen, and filter screen generally adopts the filter screen film.A kind of employing circular port of existing filter screen film; Not only net intensity is inhomogeneous and not good but also area arrangement space waste is big; Another kind is that the filter screen film is square; Promptly adopt the mode of screen cloth processing, it is fitted on the support, the technical matters that this type exists the screen cloth of applying to come off easily.
Summary of the invention
First purpose of the present invention is to provide a kind of foam pump, and to solve prior art under whole foam pump height condition of limited, the height of leaving the gas-liquid mixed chamber for is just very limited, influences the problem of blebbing performance
A kind of foam pump in order to draw the liquid in the container and to make this liquid spray foam from nozzle, comprises that liquid chamber pump unit, air-chamber pump unit, foam form device and actuating device, wherein:
Said foam forms device and comprises one or more screen cloth and the gas-liquid mixed chamber that is arranged on the escape route at least, is used for air and liquid after mix the gas-liquid mixed chamber, forms exportable foam through screen cloth again;
Liquid chamber pump unit comprises liquid chamber and liquid chamber linkage, and the liquid chamber linkage is used under the interlock of actuating device the liquid of liquid chamber is delivered to said gas-liquid mixed chamber through liquid supplying passage;
The air-chamber pump unit comprises air chamber and air chamber linkage, and the air chamber connecting device is used under the effect of actuating device the air of air chamber is delivered to said gas-liquid mixed chamber;
Wherein, comprise reset unit at least, said reset unit is set directly in the air chamber, with liquid chamber and liquid supplying passage direct contact not,
The liquid chamber linkage comprises the discharging valve, and said discharging valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber.
The liquid chamber linkage comprises:
One principal post, for being the body of hollow structure, the top of body and air valve below pipeline connection, collar extension is provided with a bleeder valve doorway interior week on the body;
One big piston is arranged on and is enclosed between principal post and the air valve;
One upperpush rod, it penetrates in the body of principal post, and the outer rim of its upper end and said bleeder valve doorway are complementary; Under the actuating device suppressing action state; The bleeder valve doorway of collar extension open to form a clearance channel on the upper end outer rim of upperpush rod and the principal post, and the discharging valve open is in actuating device not under the suppressing action state; On the upper end outer rim of upperpush rod and the principal post fit in the bleeder valve doorway of collar extension, the discharging valve closing.
The liquid chamber linkage also comprises:
One pipe link, its epimere portion penetrates the tube of principal post and is connected interlock with upperpush rod, and its hypomere portion is the stop portion of a ring-type, and the outer rim of upperpush rod and pipe link is provided with one and more than one axial guide channel, forms liquid supplying passage;
One valve piston, movable sleeve place the pipe link bottom, and are connected in said stop portion;
One cylinder; Be sheathed on big piston and valve piston periphery and be a up big and down small perforation tubular body; Going up big portion can supply big piston to pump within it; Valve piston can pump in following little of cylinder, and the bottom of cylinder is provided with the standpipe that can be communicated with liquid container, and a valve is set between standpipe and the valve piston.
Reset unit comprises a spring, and a said spring is arranged on the outside of principal post, and is positioned at the last big portion of cylinder, and an end is butted on cylinder inner wall mutually or is butted on cylinder inner wall mutually through back-up ring, and the other end is arranged on the bottom of big portion on the big piston.
Big piston is also as the significant components parts of air chamber linkage, and said air chamber linkage also comprises:
Upper air valve: in tubular construction, the middle part is provided with periphery downwards and the annulus of band convex edge, and the pressure head in the actuating device is against the annulus top; Circle ring inner wall is established air inlet duct; Air valve below inside pipe wall is provided with air discharge duct, and the tube wall external diameter of air valve top is provided with bulge loop and faucet pipe inwall ring groove or draw-in groove coupling and mutual socket snap fit, and; The oblique seal ring that has of said big piston inwall also is provided with pore and air drain on the big piston.
In the pressure head of actuating device spray orifice is set, said air valve is arranged on the below of spray orifice, forms a hydrojet passage between spray orifice and the air valve, and air valve can be provided with filter screen bracket in the inlet and/or the outlet of hydrojet passage, and the opening of sieve on the said filter screen bracket is the hexagonal hole shape.
Air valve is provided with said filter screen bracket in the outlet of hydrojet passage and comprises the support ring that is arranged on the air valve outer wall, is sticked at the inwall unit and the filter screen unit of air valve inwall; Support ring connects the inwall unit; Filter screen unit is positioned on the inwall unit, and with the hydrojet channel vertical.
The filter screen that said filter screen unit adopts is a fie screen, and said support ring, inwall unit and filter screen unit are made into integration through Shooting Technique.
Air valve is provided with said filter screen bracket at the inlet of hydrojet passage and comprises side wall ring and bottom screen unit, and said filter screen unit is arranged on the below of side wall ring.
Said bottom screen unit adopts coarse strainer, and said side wall ring and bottom screen unit are that Shooting Technique is made into integration.
Opening of sieve on the said filter screen bracket is a rectangular distribution.
In the pressure head of actuating device spray orifice is set, said air valve is arranged on the below of spray orifice, forms a hydrojet passage between spray orifice and the air valve; Said filter screen bracket is arranged in the hydrojet passage, and filter screen bracket comprises upper end, intermediate mass and bottom, wherein; Upper end and bottom same towards, and lay respectively at the above and below of hydrojet passage, laterally account for and establish part hydrojet passage and form a hybrid chamber; Intermediate mass is between upper end and bottom; It is provided with direction and upper end and bottom towards on the contrary, and laterally support and be located in the hydrojet passage, form a first passage between part hydrojet passage of leaving a blank in the upper end and the intermediate mass; Form second channel between part hydrojet passage of leaving a blank in the bottom and the intermediate mass, hybrid chamber connects through filter screen with first passage, second channel respectively.
Hybrid chamber and first passage connect through fie screen.
Hybrid chamber and second channel connect through coarse strainer.
Upper end, intermediate mass and bottom be semicircular in shape or arc respectively, to match with the hydrojet passage.
Intermediate mass is connected with upper end, bottom respectively through a side stand.
Upper and lower upside beam column and the downside beam column of being provided with respectively of intermediate mass, said upside beam column, downside beam column are separately positioned in first passage and the second channel, and flush with upper end and bottom respectively.
A kind of dispense liquid eductor is wrapped and is stated said foam pump and liquid container, and foam pump is installed on the said liquid container.
Compared with prior art, the present invention has the following advantages:
(1) because the discharging valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber; Like this; Liquid can directly get into the gas-liquid mixed chamber through liquid supplying passage, can directly not remain in the long liquid supplying passage, causes pollution thus easily.
(2) existing webmaster goes out/goes into end and can be provided with filter screen, and filter screen generally adopts the filter screen film.Filter screen film of the present invention adopts hex hole usually, and hex hole has foam quality capitally.And can overcome the circular inhomogeneous and not good technical matters of net intensity, and promote area and arrange utilization of space, also overcome the tight and high shortcoming of cost of filter screen applying of square opening.Among the present invention, can go out end or enter the mouth to select a filter screen wherein to process hex hole at webmaster, also can all make hex hole simultaneously, this need realize according to concrete product requirement.
(3) the filter screen film can be processed through injection moulding, one-shot forming, and cost is low, process velocity is fast.
Description of drawings
Fig. 1, Fig. 2 are respectively the structure cut-away view that reaches under the instance one foam pump running condition under the reset condition;
Fig. 3 cuts open scheme drawing for instance one shell inner structure;
Fig. 4 is the three-dimensional exploded view of instance one.
Fig. 5 cuts open scheme drawing for the shell inner structure of instance two;
Fig. 6 (a) and (b) are respectively lateral plan, the birds-eye view of coarse strainer instance;
Fig. 7 (a) and (b) are respectively lateral plan, the birds-eye view of fie screen instance;
Fig. 8 is the lateral plan of instance two air valves;
Fig. 9 A-Fig. 9 C is block diagram and the section drawing that is respectively the filter screen bracket of instance three of the present invention;
Figure 10 is the cut-away view of instance four filter screen pipe instances.
The specific embodiment
Below according to accompanying drawing, specify the present invention.
A kind of foam pump in order to draw the liquid in the container and to make this liquid spray foam from nozzle, comprises that liquid chamber pump unit, air-chamber pump unit, foam form device and actuating device, wherein:
Said foam forms device and comprises one or more screen cloth and the gas-liquid mixed chamber that is arranged on the escape route at least, is used for air and liquid after mix the gas-liquid mixed chamber, forms exportable foam through screen cloth again;
Liquid chamber pump unit comprises liquid chamber and liquid chamber linkage, and the liquid chamber linkage is used under the interlock of actuating device the liquid of liquid chamber is delivered to said gas-liquid mixed chamber through liquid supplying passage;
The air-chamber pump unit comprises air chamber and air chamber linkage, and the air chamber connecting device is used under the effect of actuating device the air of air chamber is delivered to said gas-liquid mixed chamber;
Wherein, comprise reset unit, said reset unit is set directly in the air chamber, with liquid chamber and liquid supplying passage direct contact not.
Liquid chamber pump unit, air-chamber pump unit, foam form device and actuating device can have very many structures to go to realize; But core of the present invention will be protected be said structure howsoever; As long as its reset unit is set directly at air chamber; Be used for the reset unit that the air chamber linkage resets and be not set directly at liquid chamber or liquid supplying passage, all should fall into protection scope of the present invention.
At present; The dispense liquid eductor generally comprises foam pump and liquid container; The liquid of liquid container in advance the suction liquid chamber, after actuating device is applied, the liquid of liquid chamber arrives the gas-liquid mixed chamber through liquid supplying passage, air chamber is opened gas passage air is injected the air-flow blending box simultaneously; After reaching the effect of gas-liquid mixed, form device through foam again foam is discharged through escape route.When actuating device is not done the time spent, liquid chamber is closed through the discharging valve that liquid supplying passage arrives on this path of gas-liquid mixed chamber, and simultaneously, air injects the gas passage of air-flow blending box and also closes.In addition, the liquid of liquid container is again with the suction liquid chamber.
The liquid chamber linkage comprises the discharging valve, and said discharging valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber.Mutual place can be interpreted as: the discharging valve can be arranged on the cephalic par of liquid supplying passage, also can be arranged on the tail end of gas-liquid mixed chamber, and the portion that interconnects of liquid supplying passage and gas-liquid mixed chamber also can be set.The structure of discharging valve has very many, and it opens bleeder valve doorway and the effect of closing the bleeder valve doorway as long as realize liquid chamber linkage interlock, just should fall into protection scope of the present invention.
This design can bring following benefit: because the discharging valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber; Liquid can directly get into the gas-liquid mixed chamber through liquid supplying passage; Can directly not remain in the long liquid supplying passage, cause pollution thus easily.
Instance one
See also Fig. 1-Fig. 4, a kind of foam pump is in order to draw the liquid in the container and to make this liquid spray foam from nozzle; Actuating device is a pressure head, and foam forms device and comprises one or more screen cloth and the gas-liquid mixed chamber that is arranged on the escape route, and liquid chamber pump unit comprises principal post 5, big piston 6, upperpush rod 17, pipe link 8, valve piston 9, cylinder 10; Reset attachment comprises spring 11; The air chamber linkage also comprises air valve 4 except comprising big piston 6, following casehistory.
Constitute shell by enclosing cover 1, pressure head 2, spiral cover 7 and cylinder 10; Comprise pressure head 2, spiral cover 7, filter screen pipe 3, air valve 4, big piston 6, upperpush rod 17, principal post 5, ring washer 14, valve piston 9, pipe link 8, cylinder 10, spring 11 and valve 12 in the shell in regular turn; At pressure head 2 and 4 in air valve filter screen pipe 3 is set; Spring 11 is located at outside the principal post 5, wherein:
One pressure head 2 which is provided with nozzle 201 and supplies the foam ejection, and a wide diameter portion is arranged at pressure head 2 faucet pipe bottoms, is provided with annular recess or draw-in groove at the wide diameter portion inwall, and forms convex annular rank at the wide diameter portion section start;
One air valve 4 is a tubular structure, and the middle part can be provided with periphery downwards and the annulus of band convex edge, and pressure head 2 is against the annulus top; Circle ring inner wall is established air inlet duct 401; Air valve 4 below inside pipe walls are provided with air discharge duct 402, and the tube wall external diameter of air valve 4 tops and faucet pipe inwall coupling and mutual socket are fixed, and in the said pressure head 2 spray orifice are set; Said air valve 4 is arranged on the below of spray orifice; Form a hydrojet passage between spray orifice and the air valve 4, air valve 4 can be provided with filter screen bracket 15,16 in the inlet and/or the outlet of hydrojet passage, and the opening of sieve on the said filter screen bracket 15,16 can be the hexagonal hole shape;
One principal post 5; For being the body of hollow structure, the ring portion downward by a periphery is divided into cannula portion and tube with body, and the ring portion upper surface is provided with the back-up ring 501 that is trapped among the cannula portion periphery; Cannula portion and air valve 4 below pipeline connections; Form blending box 502 in the pipe, and collar extension is provided with a bleeder valve doorway interior week on the body;
One big piston 6 is arranged on and is enclosed between principal post 5 and the air valve 4;
One upperpush rod 17, it penetrates in the body of principal post 5, and the outer rim of its upper end and said bleeder valve doorway are complementary; Under the actuating device suppressing action state, on the upper end outer rim of upperpush rod 17 and the principal post do not fit in the bleeder valve doorway of collar extension, can open a passage; Be the discharging valve open, be in actuating device not under the suppressing action state, on the upper end outer rim of upperpush rod 17 and the principal post 5 fit in the bleeder valve doorway of collar extension; Close this passage, this discharging valve closing;
One pipe link 8, its epimere portion penetrates the tube of principal post 5 and is connected interlock with upperpush rod 17, and its hypomere portion is the stop portion of a ring-type, and the outer rim of upperpush rod 17 and pipe link 8 is provided with one and more than one axial guide channel, forms liquid supplying passage;
One valve piston 9, movable sleeve place pipe link 8 bottoms, and are connected in said stop portion;
One cylinder 10; Be sheathed on big piston 6 and valve piston 9 peripheries and be a up big and down small perforation tubular body; Go up big portion and can supply big piston 6 to pump within it, valve piston 9 can pump in following little of cylinder 10, and the bottom of cylinder 10 is provided with the standpipe that can be communicated with liquid container; One valve 12 is set between standpipe and the valve piston, and this valve can be a ball float.
Reset unit comprises spring 11, and said spring 11 is arranged on the outside of principal post 5, and is positioned at the last big portion of cylinder 10, and an end is butted on cylinder 10 inwalls mutually or is butted on cylinder inner wall mutually through back-up ring, and the other end is arranged on the bottom of big piston.
When the extrusion head 2 down movement, driven by the intake valve 4 and the main column 5 with the movement, connecting rods 8 prevents the lever 17 downward movement resorted to gradually open the valve 1301 is located on the intake valve 4 gradually into the gas tank 401 is closed, sealing ring 601 moving away from the exhaust gas passage 501 opens and the process will continue under the pressure of the gas cylinder 10 from the cylinder 10 through the ring 501 and the seal 601 into the gap between the exhaust ducts 402, and then into the gas-liquid mixing chamber 502, and under the pressure of the process with the feed valve 1301 through the mixing chamber 502 into the liquid mixture is then filtered foam network 3 and of the pressure head extrusion nozzle 201.
When unclamping pressure head 2,, make principal post 5 and air inlet valve 4 up motion together owing to receive spring 11 reset response power effects; This moment, big piston 6 received cylinder 10 tube wall frictional force transfixions with valve piston 9, and this rear connecting rod 8 can stop upperpush rod 17 upward movements earlier, thereby upperpush rod 17 places discharging valve 1301 is closed gradually; Air inlet duct 401 between big piston 6 and the air inlet valve 4 is opened, the pathway closure between back-up ring 501 and the piston packing ring 601, and make seal ring 601 hold air inlet valve 4 tightly; Make its sealing,, drive big piston 6 with principal post 5 and constantly up motion of upperpush rod 17; Upperpush rod 17, pipe link 8 up move with valve piston 9, uses the volume increase of air chamber 1001 and liquid chamber 1002 in the cylinder 10 respectively; Thereby extraneous air is sucked from air inlet duct 401; Pore 602 on setting and big piston 6 gets into air chambers 1001 with air drain 603, and the interior material body of bottle device is inhaled into liquid chamber 1002 through valve 12, for next stock is prepared.
The liquid chamber linkage comprises the discharging valve, and said discharging valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber.Mutual place can be interpreted as: the discharging valve can be arranged on the cephalic par of liquid supplying passage, also can be arranged on the tail end of gas-liquid mixed chamber, and the portion that interconnects of liquid supplying passage and gas-liquid mixed chamber also can be set.The structure of discharging valve has very many, and it opens bleeder valve doorway and the effect of closing the bleeder valve doorway as long as realize liquid chamber linkage interlock, just should fall into protection scope of the present invention.
This design can bring following benefit: because the discharging valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber; Between liquid supplying passage and liquid chamber, just need not consider the design of valve like this; Like this; The mutual place of liquid supplying passage and liquid chamber can only realize that it is communicated with effect, and therefore the height at mutual place can design very for a short time, thus by can be under whole height unmodified situation; The liquid chamber linkage can down move and vacate the space of more gas-liquid mixed chamber, accomplishes that gas-liquid mixes more fully.
Instance two
See also Fig. 5 to Fig. 8 again, a kind of foam pump is in order to draw the liquid in the container and to make this liquid spray foam from nozzle; Comprise pressure head, air valve and filter screen bracket; Spray orifice is set in the pressure head, and air valve is arranged on the below of spray orifice, forms a hydrojet passage between spray orifice and the air valve; Air valve can be provided with filter screen bracket in the inlet and/or the outlet of hydrojet passage, and the opening of sieve on the filter screen bracket is the hexagonal hole shape.
Air valve is provided with said filter screen bracket in the outlet of hydrojet passage and comprises the support ring 32 that is arranged on the air valve outer wall 41, is sticked at the inwall unit 34 and the filter screen unit 33 of air valve inwall; Support ring 34 connects inwall unit 34; Filter screen unit 33 is positioned on the inwall unit 34, and with the hydrojet channel vertical.
In this example, the filter screen that filter screen unit can adopt is a coarse strainer, and support ring 32, inwall unit 34 and filter screen unit 33 can be made into integration through Shooting Technique, and cost is low.Certainly, also can adopt the hypracoustic mode to make.In addition, the shape of filter screen unit 33 as far as possible with the hydrojet passage with coincide or cross-sectional area smaller and the hydrojet passage.Like this, the area of foams mix is just bigger, better effects if.It is the hexagonal hole shape that each opening of sieve of filter screen unit adopts, and the foam effect that this structure is provided with is better, and the face that can promote only arranges utilization of space, and cost is low, the filter screen that has also overcome square opening untight shortcoming of fitting.
Air valve can comprise side wall ring 1402 and bottom screen unit 1401 at the filter screen bracket of the inlet setting of hydrojet passage, and bottom screen unit 1401 can be arranged on the below of side wall ring 1402.Bottom screen unit 1401 can be positioned on the principal post wall 51.The usefulness that this design is only fixing with filter screen bracket, this structure can be various.Same, design also can be multiple appearance in the filter screen bracket structure of outlet.Existing webmaster goes out/go into end can be provided with filter screen, and filter screen generally adopts the filter screen film.
Certainly, bottom screen unit 1401 can adopt fie screen, and said side wall ring 1402 can also can be that ultrasonic technique is processed for Shooting Technique is made into integration with bottom screen unit 1402.
Opening of sieve on the above-mentioned said filter screen bracket is rectangular distribution preferably, so easier mixing material, and mix.The filter screen film can adopt hex hole in this example; Hex hole has foam quality capitally; Can certainly adopt circular port; But adopt hex hole and can overcome the circular inhomogeneous and not good technical matters of net intensity, promote area and arrange utilization of space, the filter screen that has also overcome square opening is fitted closely and the high shortcoming of cost.In this practical example, can go out end or enter the mouth to select a filter screen wherein to process hex hole at webmaster, also can all make hex hole simultaneously, this need realize according to concrete product requirement.
Instance three
Filter screen bracket also can adopt following structure to realize.See also Fig. 9 A, Fig. 9 B, Fig. 9 C; Filter screen bracket comprises upper end 231, intermediate mass 233 and bottom 232, wherein, upper end 231 and bottom 232 same towards; And lay respectively at the above and below of hydrojet passage; Laterally account for and establish part hydrojet passage and form a hybrid chamber, intermediate mass 233 between upper end 231 and bottom 232, its be provided with direction and upper end and bottom towards on the contrary; And laterally to being located in the hydrojet passage; Form a first passage between part hydrojet passage of leaving a blank in the upper end and the intermediate mass, form second channel between part hydrojet passage of leaving a blank in the bottom and the intermediate mass 233, hybrid chamber connects through filter screen with first passage, second channel respectively.
Hybrid chamber and first passage connect through fie screen 2302.Hybrid chamber and second channel connect through coarse strainer 2301.
For better leak tightness, upper end 231, intermediate mass 233 and bottom 232 be semicircular in shape or arc respectively, to match with the hydrojet passage.Intermediate mass 233 is connected with upper end, bottom respectively through a side stand 234.In addition, intermediate mass 233 upper and lower upside beam column 235 and the downside beam columns 236 of being provided with respectively, upside beam column 235, downside beam column 236 are separately positioned in first passage and the second channel, and flush with upper end 2231 and bottom 233 respectively.Gas and liquid can mix at first passage, second channel and hybrid chamber comprehensively, form extraordinary foam, and this structure design makes only to be needed when high temperature scalds filter screen once to get final product, and the time is short, and very convenient.
Instance four
See also Figure 10, the arrival end of a webmaster 3 is established outside coarse strainer 301,0 webmasters 3 and is provided with bulge loop 303, is being provided with side exit towards the jet hole direction, and fie screen 302 is located at the side exit place.
Wherein, also can not establish bulge loop 303 outside the webmaster 3, webmaster 3 is directly replaced pressure head 2 interior conduit tops.
Compare with other several schemes, be provided with bulge loop 303 outside the webmaster 3 in this instance, be provided with side exit towards the jet hole direction, fie screen 302 is located at the side exit place, and this set also is a kind of implementation of webmaster.
More than a disclosed specific embodiment that is merely the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.
Claims (18)
1. a foam pump in order to draw the liquid in the container and to make this liquid spray foam from nozzle, is characterized in that, comprises that liquid chamber pump unit, air-chamber pump unit, foam form device and actuating device, wherein:
Said foam forms device and comprises one or more screen cloth and the gas-liquid mixed chamber that is arranged on the escape route at least, is used for air and liquid after mix the gas-liquid mixed chamber, forms exportable foam through screen cloth again;
Liquid chamber pump unit comprises liquid chamber and liquid chamber linkage, and the liquid chamber linkage is used under the interlock of actuating device the liquid of liquid chamber is delivered to said gas-liquid mixed chamber through liquid supplying passage;
The air-chamber pump unit comprises air chamber and air chamber linkage, and the air chamber connecting device is used under the effect of actuating device the air of air chamber is delivered to said gas-liquid mixed chamber;
Wherein, comprise reset unit at least, said reset unit is set directly in the air chamber, with liquid chamber and liquid supplying passage direct contact not,
The liquid chamber linkage comprises the discharging valve, and said discharging valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber.
2. foam pump as claimed in claim 1 is characterized in that, the liquid chamber linkage comprises:
One principal post, for being the body of hollow structure, the top of body and air valve below pipeline connection, collar extension is provided with a bleeder valve doorway interior week on the body;
One big piston is arranged on and is enclosed between principal post and the air valve;
One upperpush rod, it penetrates in the body of principal post, and the outer rim of its upper end and said bleeder valve doorway are complementary; Under the actuating device suppressing action state; The bleeder valve doorway of collar extension open to form a clearance channel on the upper end outer rim of upperpush rod and the principal post, and the discharging valve open is in actuating device not under the suppressing action state; On the upper end outer rim of upperpush rod and the principal post fit in the bleeder valve doorway of collar extension, the discharging valve closing.
3. foam pump as claimed in claim 2 is characterized in that, the liquid chamber linkage also comprises:
One pipe link, its epimere portion penetrates the tube of principal post and is connected interlock with upperpush rod, and its hypomere portion is the stop portion of a ring-type, and the outer rim of upperpush rod and pipe link is provided with one and more than one axial guide channel, forms liquid supplying passage;
One valve piston, movable sleeve place the pipe link bottom, and are connected in said stop portion;
One cylinder; Be sheathed on big piston and valve piston periphery and be a up big and down small perforation tubular body; Going up big portion can supply big piston to pump within it; Valve piston can pump in following little of cylinder, and the bottom of cylinder is provided with the standpipe that can be communicated with liquid container, and a valve is set between standpipe and the valve piston.
4. foam pump as claimed in claim 3 is characterized in that reset unit comprises a spring; A said spring is arranged on the outside of principal post; And be positioned at the last big portion of cylinder, and an end is butted on cylinder inner wall mutually or is butted on cylinder inner wall mutually through back-up ring, and the other end is arranged on the bottom of big portion on the big piston.
5. foam pump as claimed in claim 1 is characterized in that, big piston is also as the significant components parts of air chamber linkage, and said air chamber linkage also comprises:
Upper air valve: in tubular construction, the middle part is provided with periphery downwards and the annulus of band convex edge, and the pressure head in the actuating device is against the annulus top; Circle ring inner wall is established air inlet duct; Air valve below inside pipe wall is provided with air discharge duct, and the tube wall external diameter of air valve top is provided with bulge loop and faucet pipe inwall ring groove or draw-in groove coupling and mutual socket snap fit, and; The oblique seal ring that has of said big piston inwall also is provided with pore and air drain on the big piston.
6. like claim 1 or 5 described foam pump; It is characterized in that; In the pressure head of actuating device spray orifice is set, said air valve is arranged on the below of spray orifice, forms a hydrojet passage between spray orifice and the air valve; Air valve can be provided with filter screen bracket in the inlet and/or the outlet of hydrojet passage, and the opening of sieve on the said filter screen bracket is the hexagonal hole shape.
7. foam pump as claimed in claim 6; It is characterized in that; Air valve is provided with said filter screen bracket in the outlet of hydrojet passage and comprises the support ring that is arranged on the air valve outer wall, is sticked at the inwall unit and the filter screen unit of air valve inwall; Support ring connects the inwall unit, and filter screen unit is positioned on the inwall unit, and with the hydrojet channel vertical.
8. foam pump as claimed in claim 7 is characterized in that, the filter screen that said filter screen unit adopts is a fie screen, and said support ring, inwall unit and filter screen unit are made into integration through Shooting Technique.
9. foam pump as claimed in claim 6 is characterized in that, air valve is provided with said filter screen bracket at the inlet of hydrojet passage and comprises side wall ring and bottom screen unit, and said filter screen unit is arranged on the below of side wall ring.
10. foam pump as claimed in claim 9 is characterized in that, said bottom screen unit adopts coarse strainer, and said side wall ring and bottom screen unit are that Shooting Technique is made into integration.
11., it is characterized in that the opening of sieve on the said filter screen bracket is a rectangular distribution like claim 8 or 10 described foam pump.
12. foam pump as claimed in claim 1 is characterized in that, in the pressure head of actuating device spray orifice is set; Said air valve is arranged on the below of spray orifice, forms a hydrojet passage between spray orifice and the air valve, and said filter screen bracket is arranged in the hydrojet passage; Filter screen bracket comprises upper end, intermediate mass and bottom, wherein, upper end and bottom same towards; And lay respectively at the above and below of hydrojet passage; Laterally account for and establish part hydrojet passage and form a hybrid chamber, intermediate mass between upper end and bottom, its be provided with direction and upper end and bottom towards on the contrary; And laterally to being located in the hydrojet passage; Form a first passage between part hydrojet passage of leaving a blank in the upper end and the intermediate mass, form second channel between part hydrojet passage of leaving a blank in the bottom and the intermediate mass, hybrid chamber connects through filter screen with first passage, second channel respectively.
13. foam pump as claimed in claim 12 is characterized in that, hybrid chamber and first passage connect through fie screen.
14. foam pump as claimed in claim 12 is characterized in that, hybrid chamber and second channel connect through coarse strainer.
15. foam pump as claimed in claim 12 is characterized in that, upper end, intermediate mass and bottom be semicircular in shape or arc respectively, to match with the hydrojet passage.
16. foam pump as claimed in claim 12 is characterized in that, intermediate mass is connected with upper end, bottom respectively through a side stand.
17. foam pump as claimed in claim 12; It is characterized in that; Upper and lower upside beam column and the downside beam column of being provided with respectively of intermediate mass, said upside beam column, downside beam column are separately positioned in first passage and the second channel, and flush with upper end and bottom respectively.
18. a dispense liquid eductor comprises said foam pump of 1-17 and liquid container, foam pump is installed on the said liquid container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149735.1A CN102673902B (en) | 2012-05-15 | 2012-05-15 | Foam pump and liquid distributing ejector with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210149735.1A CN102673902B (en) | 2012-05-15 | 2012-05-15 | Foam pump and liquid distributing ejector with same |
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| Publication Number | Publication Date |
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| CN102673902A true CN102673902A (en) | 2012-09-19 |
| CN102673902B CN102673902B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210149735.1A Active CN102673902B (en) | 2012-05-15 | 2012-05-15 | Foam pump and liquid distributing ejector with same |
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| CN (1) | CN102673902B (en) |
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| WO2013170445A1 (en) * | 2012-05-15 | 2013-11-21 | Wang Ya-Tsan | Foam pump and liquid distributing ejector comprising foam pump |
| CN104955737A (en) * | 2013-01-31 | 2015-09-30 | 株式会社吉野工业所 | Foam discharge device |
| WO2018006464A1 (en) * | 2016-07-05 | 2018-01-11 | 吴婉媚 | Foam pump |
| CN107614389A (en) * | 2015-05-29 | 2018-01-19 | 株式会社吉野工业所 | Pump type outpours device |
| CN111907913A (en) * | 2020-08-10 | 2020-11-10 | 武汉亿维登科技发展有限公司 | Liquid cosmetic packaging bottle extrusion structure |
| CN113371329A (en) * | 2020-03-10 | 2021-09-10 | 广州凡而芳香日用品有限公司 | Fluid pump |
| CN114340773A (en) * | 2020-04-15 | 2022-04-12 | 小卫（上海）生物科技有限公司 | Integrated diaphragm pump |
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| CN114340773A (en) * | 2020-04-15 | 2022-04-12 | 小卫（上海）生物科技有限公司 | Integrated diaphragm pump |
| CN111907913A (en) * | 2020-08-10 | 2020-11-10 | 武汉亿维登科技发展有限公司 | Liquid cosmetic packaging bottle extrusion structure |
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|---|---|
| CN102673902B (en) | 2014-08-06 |
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Effective date of registration: 20170623 Address after: No. 128 Road Development Private Town Haimen city of Jiangsu city of Nantong Province Patentee after: Plastic packaging Co., Ltd. Jiangsu Germany Jin Address before: Room 20, building 2008, Jardine House, 1 Kangle Plaza, central, Hongkong, China Patentee before: De Jin (Hongkong) Holding Limited |