CN102673902B - Foam pump and liquid distributing ejector with same - Google Patents
Foam pump and liquid distributing ejector with same Download PDFInfo
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- CN102673902B CN102673902B CN201210149735.1A CN201210149735A CN102673902B CN 102673902 B CN102673902 B CN 102673902B CN 201210149735 A CN201210149735 A CN 201210149735A CN 102673902 B CN102673902 B CN 102673902B
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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
The suction cylinder that existing foam pump is communicated by outlet and suction fluid cylinder form, wherein, suction cylinder consists of cylinder block and piston, on fluid cylinder, be with liquid in-out check valve, the piston of suction cylinder is connected with the piston that aspirates fluid cylinder, presses piston and the piston synchronous work of aspirating fluid cylinder that pressure head makes to aspirate cylinder during use, and suction fluid cylinder sucks, aspirates cylinder by air intake by container breast essence, then emulsion is mixed mutually in exit with air and is become foam ejection, but this infrastructure cost is high.
In addition, patent No. ZL2005200636954 discloses the foam pump of another kind of type, comprise cylinder body, head, plug pipe and spring, be characterized in being provided with in cylinder body coaxial fluid cylinder and cylinder, under fluid cylinder, be positioned at the central authorities of cylinder body, cylinder is positioned at the periphery of fluid cylinder, the annular wing of cylinder and head bottom matches, fluid cylinder matches with the external diameter of plug pipe end, limited post spacing ring matches with the spacing button of plug pipe, the inlet of the head of limited post bottom and fluid cylinder bottom forms feed liquor check valve, limited post bottom is provided with barb and catches on inlet, spool forms fluid check valve with plug pipe, plug pipe, between spool and fluid cylinder, surround suction sap cavity, between plug pipe and head, with valve seat, is connected, spring is located between valve seat and cylinder, and cylinder, plug are managed, surround suction air cavity between valve seat, and valve seat lower end is provided with radially-protruding annular lower disc, valve block in 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., be 00809356.3 to disclose a kind of eductor of dispense liquid of being applied for by Airspray N.V., especially the eductor of form of foam liquid, which comprises at least a liquid container and at least with the coupled allocation component of liquid-tight mode, this allocation component comprises that one has liquor pump and a driving head of a liquid inlet and a liquid outlet, this driving head comprises the distribution openings of an escape route and a dispense liquid, this driving head also comprises the circumference over cap of a sealing simultaneously, this eductor also comprises a circumferential groove that can move into for over cap, this groove comprises the inwall of a sealing, one outer wall and a bottom, near the bottom of groove, there is one or more outlet, wherein, the shape of groove is made: make the side away from bottom of inwall be stamped a radial distance p to protection, this is greater than common clearance distance between over cap and inwall apart from p.That is,, when the internal diameter of the over cap of driving head is greater than the external diameter of existing piston pump, like this, anti-sealing infiltrates through pump very effectively.Same company discloses another kind of eductor in the US Patent of US6053364A, and it is that the closing appliance of economic benefits and social benefits is set when liquid gas mixes.
On July 1st, 2011, applied for the foam pump patent that application number is 201110183814.X, this invention relates to a kind of foam pump, in order to draw the liquid in container and to make this liquid spray foam from nozzle, by pressure head, spiral cover and cylinder form shell, in shell, sequentially comprise pressure head, air valve, principal post, large piston, spiral cover, pipe link, valve piston, cylinder, spring and valve, 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 pressure head faucet pipe from below, the lower end of webmaster is communicated with air valve, at least at webmaster arrival end, be provided with filter screen, air valve is tubular structure, and middle part is provided with periphery downwards and with the annulus of convex edge, pressure head is against 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 is placed in the air chamber of cylinder, stop itself and the contacting of chemical substance, prevent that spring from getting rusty; Because large valve piston can not link, provide leak tightness again, the design of webmaster in addition, the foam of ejection is more even.
But there is following problem in above-mentioned foam pump:
First: between liquid supplying passage and liquid chamber, discharge valve is set, mixed liquid can remain in longer liquid supplying passage, easily causes thus pollution.
Then, existing webmaster in/out end can be provided with filter screen, and filter screen generally adopts 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 is arranged space waste greatly, another kind is that filter screen film is square, adopt the mode of screen cloth processing, be fitted on support, this type exists the screen cloth of laminating to hold caducous technical matters.
Summary of the invention
The first object of the present invention is to provide a kind of foam pump, and to solve prior art in the situation that whole foam pump height is limited, the height of leaving gas-liquid mixed chamber for is just very limited, affects the problem of blebbing performance
A foam pump, in order to draw the liquid in container and to make this liquid spray foam from nozzle, comprises liquid chamber pump unit, air-chamber pump unit, formation of foam device and actuating device, wherein:
Described formation of foam device at least comprises one or more screen cloth and the gas-liquid mixed chamber being arranged on escape route, for air and liquid, after mix gas-liquid mixed chamber, then forms exportable foam by screen cloth;
Liquid chamber pump unit comprises liquid chamber and liquid chamber linkage, and liquid chamber linkage for being delivered to described gas-liquid mixed chamber by the liquid of liquid chamber by liquid supplying passage under the interlock of actuating device;
Air-chamber pump unit comprises air chamber and air chamber linkage, and air chamber connecting device for being delivered to the air of air chamber described gas-liquid mixed chamber under the effect of actuating device;
Wherein, at least comprise reset unit, described reset unit is set directly in air chamber, directly do not contact with liquid chamber and liquid supplying passage,
Liquid chamber linkage comprises discharge valve, and described discharge valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber.
Liquid chamber linkage comprises:
One principal post, for being the body of hollow structure, the top of body and air valve below pipeline connection, on body, collar extension arranges a bleeder valve doorway interior week;
One large piston, is arranged on and is enclosed between principal post and air valve;
One upperpush rod, it penetrates in the body of principal post, the outer rim of its upper end and described bleeder valve doorway match, under actuating device suppressing action state, on the upper end outer rim of upperpush rod and principal post, the bleeder valve doorway of collar extension open to form a clearance channel, and discharge valve is opened, in actuating device not under suppressing action state, the bleeder valve doorway of collar extension laminating on the upper end outer rim of upperpush rod and principal post, discharge valve is closed.
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 is placed in pipe link bottom, and is connected in described stop portion;
One cylinder, be sheathed on large piston and valve piston periphery and be a up big and down small perforation tubular body, upper large portion can pump within it for large piston, valve piston can pump in the lower little portion of cylinder, the bottom of cylinder arranges the standpipe that can be communicated with liquid container, and a valve is set between standpipe and valve piston.
Reset unit comprises a spring, and a described spring is arranged on the outside of principal post, and is positioned at the upper large portion of cylinder, and one end is butted on mutually cylinder inner wall or is butted on mutually cylinder inner wall by back-up ring, and the other end is arranged on the bottom of large portion on large piston.
Large piston is also as the significant components parts of air chamber linkage, and described air chamber linkage also comprises:
Upper air valve: in tubular construction, middle part is provided with periphery downwards and with the annulus of convex edge, pressure head in actuating device is against 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 that bulge loop mate with faucet pipe inwall ring groove or draw-in groove and the mutual buckle that is socketed is fixed, and, the oblique seal ring that has of described large piston inner wall, is also provided with pore and air drain on large piston.
In the pressure head of actuating device, spray orifice is set, described air valve is arranged on the below of spray orifice, forms a hydrojet passage between spray orifice and air valve, and air valve can arrange filter screen bracket in entrance and/or the outlet of hydrojet passage, and the opening of sieve on described filter screen bracket is hexagonal hole shape.
Air valve arranges described filter screen bracket in the outlet of hydrojet passage and comprises the support ring that is arranged on air valve outer wall, is sticked at inwall unit and the filter screen unit of air valve inwall, support ring connects inwall unit, filter screen unit is positioned on inwall unit, and with hydrojet channel vertical.
The filter screen that described filter screen unit adopts is fie screen, and described support ring, inwall unit and filter screen unit are made into integration by Shooting Technique.
Air valve arranges described filter screen bracket at the entrance of hydrojet passage and comprises side wall ring and bottom screen unit, and described filter screen unit is arranged on the below of side wall ring.
Described bottom screen unit adopts coarse strainer, and described side wall ring and bottom screen unit are that Shooting Technique is made into integration.
Opening of sieve on described filter screen bracket is to be uniformly distributed.
In the pressure head of actuating device, spray orifice is set, described air valve is arranged on the below of spray orifice, between spray orifice and air valve, form a hydrojet passage, described filter screen bracket is arranged in 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 is between upper end and bottom, towards the opposite to upper end and bottom of its setting party, and laterally support and be located in hydrojet passage, between the part hydrojet passage of leaving a blank in upper end and intermediate mass, form a first passage, between the part hydrojet passage of leaving a blank in bottom and intermediate mass, form second channel, hybrid chamber respectively with first passage, second channel connects by filter screen.
Hybrid chamber and first passage connect by fie screen.
Hybrid chamber and second channel connect by coarse strainer.
Upper end, intermediate mass and bottom be semicircular in shape or arc respectively, to match with hydrojet passage.
Intermediate mass is connected with upper end, bottom respectively by a side stand.
Upper and lower upside beam column and the downside beam column of arranging respectively of intermediate mass, described upside beam column, downside beam column are separately positioned in first passage and second channel, and flush with upper end and bottom respectively.
A dispense liquid eductor, wraps foam pump described above and liquid container, and foam pump is installed on described liquid container.
Compared with prior art, the present invention has the following advantages:
(1) due to discharge valve, be arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber, like this, liquid can directly enter gas-liquid mixed chamber by liquid supplying passage, can directly not remain in longer liquid supplying passage, easily causes thus pollution.
(2) existing webmaster in/out end can be provided with filter screen, and filter screen generally adopts filter screen film.Filter screen film of the present invention adopts hex hole conventionally, and hex hole has foam quality capitally.And can overcome the circular inhomogeneous and not good technical matters of net intensity, and promoting the degree of utilization that area is arranged space, the filter screen laminating that has yet overcome square opening is not closely and the high shortcoming of cost.In the present invention, can go out end or entrance selects a filter screen wherein to make hex hole at webmaster, also can all make hex hole, this need to realize according to concrete product requirement simultaneously.
(3) filter screen film can be made by injection moulding, one-shot forming, and cost is low, process velocity is fast.
Accompanying drawing explanation
Fig. 1, Fig. 2 are respectively under example one foam pump use state and the structure cut-away view under reset condition;
Fig. 3 is that example one shell inner structure is cutd open schematic diagram;
Fig. 4 is the three-dimensional exploded view of example one.
Fig. 5 is that the shell inner structure of example two is cutd open schematic diagram;
Fig. 6 (a), (b) are respectively lateral plan, the birds-eye view of coarse strainer example;
Fig. 7 (a), (b) are respectively lateral plan, the birds-eye view of fie screen example;
Fig. 8 is the lateral plan of example two air valves;
Fig. 9 A-Fig. 9 C is block diagram and the section drawing that is respectively the filter screen bracket of example three of the present invention;
Figure 10 is the cut-away view of example four filter screen pipe examples.
The specific embodiment
According to accompanying drawing, illustrate the present invention below.
A foam pump, in order to draw the liquid in container and to make this liquid spray foam from nozzle, comprises liquid chamber pump unit, air-chamber pump unit, formation of foam device and actuating device, wherein:
Described formation of foam device at least comprises one or more screen cloth and the gas-liquid mixed chamber being arranged on escape route, for air and liquid, after mix gas-liquid mixed chamber, then forms exportable foam by screen cloth;
Liquid chamber pump unit comprises liquid chamber and liquid chamber linkage, and liquid chamber linkage for being delivered to described gas-liquid mixed chamber by the liquid of liquid chamber by liquid supplying passage under the interlock of actuating device;
Air-chamber pump unit comprises air chamber and air chamber linkage, and air chamber connecting device for being delivered to the air of air chamber described gas-liquid mixed chamber under the effect of actuating device;
Wherein, comprise reset unit, described reset unit is set directly in air chamber, does not directly contact with liquid chamber and liquid supplying passage.
Liquid chamber pump unit, air-chamber pump unit, formation of foam 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; the reset unit resetting for air chamber linkage is not set directly at liquid chamber or liquid supplying passage, all should fall into protection scope of the present invention.
At present, dispense liquid eductor generally comprises foam pump and liquid container, the liquid of liquid container in advance suction liquid chamber, after actuating device is applied, the liquid of liquid chamber arrives gas-liquid mixed chamber by liquid supplying passage, air chamber is opened gas passage by air Injection air-flow blending box simultaneously, reach after the effect of gas-liquid mixed, then by formation of foam device, foam is discharged by escape route.When actuating device is not done the used time, the discharge valve that liquid chamber arrives on this path of gas-liquid mixed chamber by liquid supplying passage is closed, and meanwhile, the gas passage of air Injection air-flow blending box is also closed.In addition, the liquid of liquid container is again by suction liquid chamber.
Liquid chamber linkage comprises discharge valve, and described discharge valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber.Mutual place can be interpreted as: discharge 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 discharge valve has very many, as long as realize its effect of opening bleeder valve doorway and closing bleeder valve doorway of liquid chamber linkage interlock, just should fall into protection scope of the present invention.
This design can bring following benefit: because discharge valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber, liquid can directly enter gas-liquid mixed chamber by liquid supplying passage, can directly not remain in longer liquid supplying passage, easily cause thus pollution.
Example one
Refer to Fig. 1-Fig. 4, a kind of foam pump, in order to draw the liquid in container and to make this liquid spray foam from nozzle, actuating device is pressure head, and formation of foam device comprises one or more screen cloth and the gas-liquid mixed chamber being arranged on escape route, and liquid chamber pump unit comprises principal post 5, large piston 6, upperpush rod 17, pipe link 8, valve piston 9, cylinder 10, reset attachment comprises spring 11, air chamber linkage, except comprising large piston 6, also comprises air valve 4, following casehistory.
By enclosing cover 1, pressure head 2, spiral cover 7 and cylinder 10, form shell, in shell, sequentially comprise pressure head 2, spiral cover 7, filter screen pipe 3, air valve 4, large piston 6, upperpush rod 17, principal post 5, ring washer 14, valve piston 9, pipe link 8, cylinder 10, spring 11 and valve 12, at pressure head 2 and 4, air valve, filter screen pipe 3 is set, spring 11 is located at outside principal post 5, wherein:
One pressure head 2, which is provided with nozzle 201 for foam ejection, and a wide diameter portion is arranged at pressure head 2 faucet pipe bottoms, at wide diameter portion inwall, is provided with annular recess or draw-in groove, and forms convex annular rank at wide diameter portion section start;
One air valve 4 is tubular structure, middle part can be provided with periphery downwards and with the annulus of convex edge, pressure head 2 is against 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, the tube wall external diameter of air valve 4 tops mates with faucet pipe inwall and is mutually fixed by socket, the interior spray orifice that arranges of described pressure head 2, described air valve 4 is arranged on the below of spray orifice, between spray orifice and air valve 4, form a hydrojet passage, air valve 4 can arrange filter screen bracket 15 in entrance and/or the outlet of hydrojet passage, 16, described filter screen bracket 15, opening of sieve on 16 can be 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 by body; ring portion upper surface is provided with the back-up ring 501 that is trapped among cannula portion periphery; cannula portion and air valve 4 below pipeline connections; in pipe, form blending box 502, and on body, collar extension arranges a bleeder valve doorway interior week;
One large piston 6, is arranged on and is enclosed between principal post 5 and air valve 4;
One upperpush rod 17; it penetrates in the body of principal post 5; the outer rim of its upper end and described bleeder valve doorway match, and under actuating device suppressing action state, on the upper end outer rim of upperpush rod 17 and principal post, do not fit in the bleeder valve doorway of collar extension; can open a passage; be that discharge valve is opened, in actuating device not under suppressing action state, the bleeder valve doorway of collar extension laminating on the upper end outer rim of upperpush rod 17 and principal post 5; close this passage, this discharge valve is closed;
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 is placed in pipe link 8 bottoms, and is connected in described stop portion;
One cylinder 10, be sheathed on large piston 6 and valve piston 9 peripheries and be a up big and down small perforation tubular body, upper large portion can pump within it for large piston 6, valve piston 9 can pump in the lower little portion of cylinder 10, the bottom of cylinder 10 arranges the standpipe that can be communicated with liquid container, one valve 12 is set between standpipe and valve piston, and this valve can be a ball float.
Reset unit comprises spring 11, and described spring 11 is arranged on the outside of principal post 5, and is positioned at the upper large portion of cylinder 10, and one end is butted on mutually cylinder 10 inwalls or is butted on mutually cylinder inner wall by back-up ring, and the other end is arranged on the bottom of large piston.
When extrusion head 2 down moves, drive air inlet valve 4 to move together with principal post 5, pipe link 8 can stop upperpush rod 17 to move downward, discharge valve 1301 is opened gradually, the air inlet duct 401 being positioned on air inlet valve 4 is closed gradually, seal ring 601 departs from gradually back-up ring 501 and exhaust passage is opened, and in the process constantly pressing down, the gas of cylinder 10 Inner is entered to air discharge duct 402 from cylinder 10 through the gap between back-up ring 501 and seal ring 601, then enter gas-liquid mixed chamber 502, with with pressing down in process the liquid that enters blending box 502 through discharge valve 1301, mix, then webmaster 3 produces foam after filtration, and extrude from pressure head nozzle 201.
When unclamping pressure head 2, owing to being subject to spring 11 reset response power effects, make principal post 5 up motion together with air inlet valve 4, now large piston 6 is subject to cylinder 10 tube wall frictional force transfixions with valve piston 9, this rear connecting rod 8 can first stop upperpush rod 17 upward movements, thereby upperpush rod 17 place's discharge valves 1301 are closed gradually, air inlet duct 401 between large piston 6 and air inlet valve 4 is opened, pathway closure between back-up ring 501 and piston packing ring 601, and make seal ring 601 hold air inlet valve 4 tightly, make its sealing, with principal post 5 and constantly up motion of upperpush rod 17, drive large piston 6, upperpush rod 17, pipe link 8 and valve piston 9 up move, use respectively the air chamber 1001 in cylinder 10 to increase with the volume of liquid chamber 1002, thereby extraneous air is sucked from air inlet duct 401, through setting and pore 602 and air drain 603 on large piston 6, enter air chamber 1001, material body in bottle device is inhaled into liquid chamber 1002 through valve 12, for next stock is prepared.
Liquid chamber linkage comprises discharge valve, and described discharge valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber.Mutual place can be interpreted as: discharge 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 discharge valve has very many, as long as realize its effect of opening bleeder valve doorway and closing bleeder valve doorway of liquid chamber linkage interlock, just should fall into protection scope of the present invention.
This design can bring following benefit: because discharge valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber, between liquid supplying passage and liquid chamber, just do not need to consider like this design of valve, like this, the mutual place of liquid supplying passage and liquid chamber can only realize it and be communicated with effect, therefore the height at mutual place can design very littlely, thus by can be in the situation that whole height be constant, liquid chamber linkage can down move and vacate the space of more gas-liquid mixed chamber, accomplishes that gas-liquid mixes more fully.
Example two
Refer to again Fig. 5 to Fig. 8, a kind of foam pump, in order to draw the liquid in container and to make this liquid spray foam from nozzle, comprise pressure head, air valve and filter screen bracket, spray orifice is set in pressure head, and air valve is arranged on the below of spray orifice, forms a hydrojet passage between spray orifice and air valve, air valve can arrange filter screen bracket in entrance and/or the outlet of hydrojet passage, and the opening of sieve on filter screen bracket is hexagonal hole shape.
Air valve arranges described filter screen bracket in the outlet of hydrojet passage and comprises the support ring 32 that is arranged on air valve outer wall 41, is sticked at 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 inwall unit 34, and with hydrojet channel vertical.
In this example, the filter screen that filter screen unit can adopt is coarse strainer, and support ring 32, inwall unit 34 and filter screen unit 33 can be made into integration by Shooting Technique, and cost is low.Certainly, also can adopt hypracoustic mode to make.In addition, the shape of filter screen unit 33 as far as possible with hydrojet passage with coincide, or cross-sectional area smaller and hydrojet passage.Like this, the area of foams mix is just larger, better effects if.It is hexagonal hole shape that each opening of sieve of filter screen unit adopts, and the foam effect that this structure arranges is better, and can promote the degree of utilization that face is only arranged 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 entrance 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 principal post wall 51.This design is only by the fixing use of filter screen bracket, and this structure can be various.Same, design can be also multiple sample in the filter screen bracket structure of outlet.Existing webmaster in/out end can be provided with filter screen, and filter screen generally adopts filter screen film.
Certainly, bottom screen unit 1401 can adopt fie screen, and described side wall ring 1402 can, for Shooting Technique is made into integration, can be also that ultrasonic technique is made with bottom screen unit 1402.
Opening of sieve on above-mentioned described filter screen bracket is preferably uniformly distributed, easier like this mixing material, and mix.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 the degree of utilization in space, the filter screen laminating that has yet overcome square opening is not closely and the high shortcoming of cost.In this practical example, can go out end or entrance selects a filter screen wherein to make hex hole at webmaster, also can all make hex hole, this need to realize according to concrete product requirement simultaneously.
Example three
Filter screen bracket also can adopt following structure to realize.Refer to Fig. 9 A, Fig. 9 B, Fig. 9 C, filter screen bracket comprises upper end 231, intermediate mass 233 and bottom 232, wherein, 231He bottom, upper end 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 is between 231He bottom, upper end 232, towards the opposite to upper end and bottom of its setting party, and laterally support and be located in hydrojet passage, between the part hydrojet passage of leaving a blank in upper end and intermediate mass, form a first passage, between the part hydrojet passage of leaving a blank in bottom and intermediate mass 233, form second channel, hybrid chamber respectively with first passage, second channel connects by filter screen.
Hybrid chamber and first passage connect by fie screen 2302.Hybrid chamber and second channel connect by 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 hydrojet passage.Intermediate mass 233 is connected with upper end, bottom respectively by a side stand 234.In addition, upper and lower upside beam column 235 and the downside beam column 236 of arranging respectively of intermediate mass 233, upside beam column 235, downside beam column 236 are separately positioned in first passage and 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, only need to be once when this structure design makes high temperature scald filter screen, the time is short, and very convenient.
Example four
Refer to 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, towards jet hole direction, is being provided with side exit, and fie screen 302 is located at side exit place.
Wherein, webmaster 3 is outer also can not establish bulge loop 303, and webmaster 3 is directly supported pressure head 2 interior conduit tops.
Compare with other several schemes, outside the webmaster 3 in this example, be provided with bulge loop 303, towards jet hole direction, be provided with side exit, fie screen 302 is located at side exit place, and this set is also a kind of implementation of webmaster.
Disclosed is above only the application's a specific embodiment, but the application is not limited thereto, and the changes that any person skilled in the art can think of, all should drop in the application's protection domain.
Claims (16)
1. a foam pump, in order to draw the liquid in container and to make this liquid spray foam from nozzle, is characterized in that, comprises liquid chamber pump unit, air-chamber pump unit, formation of foam device and actuating device, wherein:
Described formation of foam device at least comprises one or more screen cloth and the gas-liquid mixed chamber being arranged on escape route, for air and liquid, after mix gas-liquid mixed chamber, then forms exportable foam by screen cloth;
Liquid chamber pump unit comprises liquid chamber and liquid chamber linkage, and liquid chamber linkage for being delivered to described gas-liquid mixed chamber by the liquid of liquid chamber by liquid supplying passage under the interlock of actuating device;
Air-chamber pump unit comprises air chamber and air chamber linkage, and air chamber linkage for being delivered to the air of air chamber described gas-liquid mixed chamber under the effect of actuating device;
Wherein, at least comprise reset unit, described reset unit is set directly in air chamber, directly do not contact with liquid chamber and liquid supplying passage,
Liquid chamber linkage comprises:
Discharge valve, described discharge valve is arranged on the mutual place of liquid supplying passage and gas-liquid mixed chamber;
One principal post, for being the body of hollow structure, the top of body and air valve below pipeline connection, on body, collar extension arranges a bleeder valve doorway interior week;
One large piston, is arranged on and is enclosed between principal post and air valve;
One upperpush rod, it penetrates in the body of principal post, the outer rim of its upper end and described bleeder valve doorway match, under actuating device suppressing action state, on the upper end outer rim of upperpush rod and principal post, the bleeder valve doorway of collar extension open to form a clearance channel, and discharge valve is opened, in actuating device not under suppressing action state, the bleeder valve doorway of collar extension laminating on the upper end outer rim of upperpush rod and principal post, discharge valve is closed;
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 at least one axial guide channel, forms liquid supplying passage;
One valve piston, is placed on pipe link bottom, movable with the activity of described pipe link, and is connected in described stop portion;
One cylinder, be sheathed on large piston and valve piston periphery and be a up big and down small perforation tubular body, upper large portion pumps within it for large piston, valve piston pumps in the lower little portion of cylinder, the bottom of cylinder arranges the standpipe that can be communicated with liquid container, and a valve is set between standpipe and valve piston.
2. foam pump as claimed in claim 1, is characterized in that, reset unit comprises a spring, a described spring is arranged on the outside of principal post, and be positioned at the upper large portion of cylinder, and one end is butted on mutually cylinder inner wall or is butted on mutually cylinder inner wall by back-up ring, and the other end is arranged on the bottom of large portion on large piston.
3. foam pump as claimed in claim 1, is characterized in that, large piston is also as the significant components parts of air chamber linkage, and described air chamber linkage also comprises:
Air valve: in tubular construction, middle part is provided with periphery downwards and with the annulus of convex edge, pressure head in actuating device is against 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 that bulge loop mate with faucet pipe inwall ring groove or draw-in groove and the mutual buckle that is socketed is fixed, and, the oblique seal ring that has of described large piston inner wall, is also provided with pore and air drain on large piston.
4. foam pump as claimed in claim 3, it is characterized in that, in the pressure head of actuating device, spray orifice is set, described air valve is arranged on the below of spray orifice, between spray orifice and air valve, form a hydrojet passage, air valve arranges filter screen bracket in entrance and/or the outlet of hydrojet passage, and the opening of sieve on described filter screen bracket is hexagonal hole shape.
5. foam pump as claimed in claim 4, it is characterized in that, air valve arranges described filter screen bracket in the outlet of hydrojet passage and comprises the support ring that is arranged on air valve outer wall, is sticked at inwall unit and the filter screen unit of air valve inwall, support ring connects inwall unit, filter screen unit is positioned on inwall unit, and with hydrojet channel vertical.
6. foam pump as claimed in claim 5, is characterized in that, the filter screen that described filter screen unit adopts is fie screen, and described support ring, inwall unit and filter screen unit are made into integration by Shooting Technique.
7. foam pump as claimed in claim 4, is characterized in that, air valve arranges described filter screen bracket at the entrance of hydrojet passage and comprises side wall ring and bottom screen unit, and described filter screen unit is arranged on the below of side wall ring.
8. foam pump as claimed in claim 7, is characterized in that, described bottom screen unit adopts coarse strainer, and described side wall ring and bottom screen unit are that Shooting Technique is made into integration.
9. the foam pump as described in claim 6 or 8, is characterized in that, the opening of sieve on described filter screen bracket is to be uniformly distributed.
10. foam pump as claimed in claim 2, it is characterized in that, in the pressure head of actuating device, spray orifice is set, described air valve is arranged on the below of spray orifice, between spray orifice and air valve, form a hydrojet passage, in described hydrojet passage, a filter screen bracket is set, 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, along laterally occupying part hydrojet passage, form a hybrid chamber, intermediate mass is between upper end and bottom, towards the opposite to upper end and bottom of its setting party, and laterally support and be located in hydrojet passage, between the part hydrojet passage of leaving a blank in upper end and intermediate mass, form a first passage, between the part hydrojet passage of leaving a blank in bottom and intermediate mass, form second channel, hybrid chamber respectively with first passage, second channel connects by filter screen.
11. foam pump as claimed in claim 10, is characterized in that, hybrid chamber and first passage connect by fie screen.
12. foam pump as claimed in claim 10, is characterized in that, hybrid chamber and second channel connect by coarse strainer.
13. foam pump as claimed in claim 10, is characterized in that, upper end, intermediate mass and bottom be semicircular in shape or arc respectively, to match with hydrojet passage.
14. foam pump as claimed in claim 10, is characterized in that, intermediate mass is connected with upper end, bottom respectively by a side stand.
15. foam pump as claimed in claim 10, it is characterized in that, upper and lower upside beam column and the downside beam column of arranging respectively of intermediate mass, described upside beam column, downside beam column are separately positioned in first passage and second channel, and flush with upper end and bottom respectively.
16. 1 kinds of dispense liquid eductors, comprise foam pump and liquid container described in 1-15 any one, and foam pump is installed on described 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 |
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| 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 CN102673902A (en) | 2012-09-19 |
| CN102673902B true 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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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013170445A1 (en) * | 2012-05-15 | 2013-11-21 | Wang Ya-Tsan | Foam pump and liquid distributing ejector comprising foam pump |
| CN104955737B (en) * | 2013-01-31 | 2017-06-13 | 株式会社吉野工业所 | Foam discharge device |
| JP6556498B2 (en) * | 2015-05-29 | 2019-08-07 | 株式会社吉野工業所 | Pump type dispenser |
| CN205738707U (en) * | 2016-07-05 | 2016-11-30 | 广东中凯塑业有限公司 | A kind of foam pump |
| 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 |
| CN111907913B (en) * | 2020-08-10 | 2022-01-18 | 广州伍星塑料制品有限责任公司 | Liquid cosmetic packaging bottle extrusion structure |
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| CN102673902A (en) | 2012-09-19 |
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