CN110329653A - Foam pump with breathing piece - Google Patents
Foam pump with breathing piece Download PDFInfo
- Publication number
- CN110329653A CN110329653A CN201910659039.7A CN201910659039A CN110329653A CN 110329653 A CN110329653 A CN 110329653A CN 201910659039 A CN201910659039 A CN 201910659039A CN 110329653 A CN110329653 A CN 110329653A
- Authority
- CN
- China
- Prior art keywords
- main valve
- piece
- valve stem
- breathing
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 49
- 239000006260 foam Substances 0.000 title claims abstract description 43
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 20
- 238000005187 foaming Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000010926 purge Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
- B05B7/0025—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam with a compressed gas supply
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
Abstract
A kind of foam pump with breathing piece, is made of nozzle pressing head, bung flange lid and the pump housing, and middle pump body includes pump housing shell, feed liquor check valve, big piston, main valve stem, needle, bar bottom piston, spring, fixed card ring composition.Its unique design breathing chip architecture is matched by breathing piece, main valve stem and big piston three, and air inlet is more smooth, and the pressure of inlet chamber is bigger, can generate bigger interior pressure, gas-liquid mixed is uniform, foaming abundancy.
Description
Technical field
The present invention relates to a kind of pump class, especially a kind of foam pump with breathing piece.
Background technique
Foam pump also makes blistering pump, and is usually used on the container packages such as hand cleanser, dish washing liquid, Mo Si, hair jelly, in mouth cylindrical part
Divide and be connected with a liquid pump, liquid pump is nearby provided with inlet chamber, after highly pressurised liquid and compressed air mix, very by mesh
Close foam screen generates a large amount of foams, flows out from the spout of press head.
Such as patent No. CN201110128683.5 " a kind of foam pump with external spring ", the spiral shell pressure of liquid container is set
Gai Zhong, foam pump with external spring liquid container when specifically used are provided with liquid, and user should by pressing
The mode of foam pump with external spring is by the extraction of the liquid quantitative in the liquid container, in the process for completing extraction liquid movement
In, extracted liquid-to-air is mixed by the foam pump with external spring, which includes
Drawing liquid chamber, inlet chamber and liquid gas mixing chamber.Wherein, which waits extracted liquid to accommodate, which uses
Mixed air is needed to provide, the mixed air of the needs for waiting the extracted liquid and the inlet chamber to provide exists
It is mixed, is finally discharged outside the foam pump with external spring in the liquid gas mixing chamber, returning spring is arranged in the inlet chamber
In.
Present foam pump sucking air with when compressed air using the air valve of similar piston, using similar to inflator
Mode provides compressed air, and when big piston and connection cover fit together, intake valve is closed, intake valve when separation
It opens；Purge valve is beaten when purge valve closes the two separation when pull rod valve plate and connecting rod valve plate fit together
It opens.Being related to inlet chamber needs above-mentioned big piston, connection cover, pull rod valve plate, connecting rod knot valve plate structure complex.And in air inlet
When with blowing, negative pressure can be generated to intake valve and purge valve respectively, after inlet chamber internal pressure increases, will lead to intake valve
Also it can be opened, eventually lead to the reduction of inlet chamber internal pressure, the air pressure that purge valve generates is limited, cannot generate in higher closing
Pressure.
In addition, the expanding foam solution in mixing chamber is possible to flow back into inlet chamber along intake valve when foam pump resets
It is interior.Make a part of expanding foam solution of residual in inlet chamber, reduces the space of the available gas exchange of inlet chamber.Also be unfavorable for generating into
Task under air cavity.Therefore when quickly pressing nozzle in multiple times, blebbing effect is worse and worse.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of foam pump with breathing chip architecture, breathing piece is utilized
Respiration, realize the ventilation operation of inlet chamber, structure is simpler, easy for installation, and can improve the internal pressure of inlet chamber,
More atmospheric pressure is generated in mixing chamber, blebbing is uniform, foaming abundancy and persistence is more preferable.
The present invention solves the above problems used technical solution: a kind of foam pump with breathing piece, by nozzle pressing
Head, bung flange lid and pump housing composition, middle pump body include pump housing shell, feed liquor check valve, big piston, main valve stem, needle, the work of bar bottom
Plug, spring, fixed card ring composition；Constitute inlet chamber between big piston and pump housing shell, between feed liquor check valve and needle for into
Sap cavity, main valve stem and big piston upper section constitute high pressure sap cavity, are provided with mixing chamber above big piston, mixing chamber is provided with foaming
Net.It is provided with elastic bracket on the main valve stem, is connected on the outside of elastic bracket and lifts ring, lift ring and breathes the outer rim of piece
It is in contact, elastic bracket withstands on the inner wall bottom of big piston by piece is breathed；Multiple rosettes are provided on the inside of breathing piece, are breathed
Piece is arranged on elastic bracket, and breathes a part of piece clamped by the bracket of main valve stem and big piston；Below rosette
Main valve pole support on be provided with expiration valve opening, the top of rosette is exhaling hole and high pressure draught channel on big piston；It is high
It calms the anger circulation road and high pressure sap cavity, is communicated with mixing chamber.
Further, the breathing piece and matched ring of lifting are round or regular polygon.
Further, locating plate is provided on the main valve stem, locating plate cooperation breathes between the rosette on the inside of piece
Gap, limitation breathing piece rotation.
Further, the pump housing shell is covered tightly with bung flange is solidly connected, and is slidably connected between bung flange lid and nozzle pressing head,
The pressing of bung flange lid limits nozzle and big piston, main valve stem moving direction, move up and down it can only along central axis.
Further, bar bottom piston is arranged between main valve stem and needle, and be allowed to main valve stem and needle it
Between slide up and down, the inner wall sliding friction of bar bottom piston and admission chamber.When main valve stem moves down, bar bottom piston is with respect on needle
It moves, exposes needle inner hole；When main valve stem moves up, bar bottom piston closes needle inner hole with respect to needle downlink.
Further, the high pressure draught channel is by the gap institute structure between the inner wall of big piston and the top of main valve stem
At the exhaling hole of main valve stem is communicated with high pressure draught channel.
Further, the admission chamber check valve is made of steel ball, bellmouth and anticreep bayonet.
Further, the top of the pump housing shell is provided with air equalizer opening, when big piston is located at extreme lower position
It waits, air equalizer opening communicates outside air with air in bottle.
Compared with prior art, present invention employs breathing chip architectures to control inlet chamber, the advantage is that: its pump housing is set
It is equipped with elasticity breathing piece, exhales a suction to control by breathe piece one, it, can be complete with preferable rhythm as human body respiration
Air inlet and outlet at inlet chamber, air-breathing is smooth, and breath pressure is big.
When nozzle pressing head is by spring reset, breathes the rosette on the inside of piece and close, the Liquid Residue in mixing chamber will not
It is inhaled into inlet chamber.
It breathes piece, main valve stem using breathing chip intake method compared to the air inlet cavity configuration in documents and lives greatly
Plug matches, and air inlet is more smooth, and the pressure of inlet chamber is bigger, can generate bigger interior pressure, gas-liquid mixed is uniform, and foam is rich
It is rich.When inlet chamber air-breathing, rosette is withstood completely by the pressure difference between the negative pressure in atmosphere and inlet chamber, will not be leaked
Gas；When inlet chamber outlet, breathing is pushed down by the downside of big piston and the pressure-air of inlet chamber and extraneous pressure difference
The outer rim of piece and ring is lifted, gas leakage will not occur.
It avoids the high pressure gas for sealing inlet chamber by the way of wall friction in piston and the pump housing in the prior art, several
The high pressure gas leakage in inlet chamber is not generated.Mixing chamber is set to generate biggish air pressure and stronger throughput, foam
Abundant, uniform, foam state is held time persistently.
Piece is breathed when foam pump resets, rosette can stop expanding foam solution to flow back, and avoid expanding foam solution from entering inlet chamber, because
Quickly repeatedly pressing foam pump, foaming effect are still fine for this.
Detailed description of the invention
Fig. 1 is outside drawing.
Fig. 2 is cross-sectional view of the present invention along nozzle direction.
Fig. 3 is state diagram when the present invention resets.
Fig. 4 is the state diagram of present invention pressure nozzle pressing head.(compared to Fig. 3, section is around 30 degree of center axis rotation).
Fig. 5 is enlarged drawing at the A of Fig. 3.
Fig. 6 is enlarged drawing at the B of Fig. 4.
Fig. 7 is the top view for breathing piece.
Fig. 8 is the upper structure perspective view of main valve stem.
Fig. 9 is the lower structure perspective view of main valve stem.
Figure 10 is enlarged drawing at the C of Fig. 2.
Figure 11 is enlarged drawing at the D of Fig. 4.
Wherein 1 is nozzle pressing head, and 2 be bung flange lid, and 3 be the pump housing, and 4 be mixing chamber, and 5 be main valve stem, and 6 be breathing piece, and 7 are
Big piston, 8 be needle, and 9 be bar bottom piston, and 10 be sealing-plug, and 11 be steel ball, and 12 be bellmouth, and 13 be anticreep bayonet, and 14 be gas
Press balance hole.
51 be elastic bracket, and 52 be expiration valve opening, and 53 be locating plate, and 54 is lift ring, and 61 be rosette, and 62 be breathing piece
Outer rim, 71 be suction hole, and 72 be exhaling hole, and 81 be needle inner hole.
101 be admission chamber, and 102 be inlet chamber, and 103 be mixing chamber, and 104 be high pressure sap cavity, and 105 be high pressure draught channel.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing.
A kind of foam pump with breathing piece, as shown in Figure 1 to Figure 2, it is by nozzle pressing head, bung flange lid and pump housing group
At middle pump body includes pump housing shell, feed liquor check valve, big piston, main valve stem, needle, bar bottom piston, spring, fixed card ring
Composition；Inlet chamber is constituted between big piston and pump housing shell, is admission chamber between feed liquor check valve and needle, main valve stem is lived with big
Section constitutes high pressure sap cavity beyond the Great Wall, is provided with mixing chamber above big piston, mixing chamber is provided with foam screen.It is set on the main valve stem
It is equipped with elastic bracket, is connected on the outside of elastic bracket and lifts ring, the outer rim for lifting ring and breathing piece is in contact, and elastic bracket will
Breathing piece withstands on the inner wall bottom of big piston；Multiple rosettes are provided on the inside of breathing piece, breathing piece is arranged in elastic bracket
On, and a part of piece is breathed clamped by the bracket of main valve stem and big piston；It is set on main valve pole support below rosette
It is equipped with expiration valve opening, the top of rosette is exhaling hole and high pressure draught channel on big piston；High pressure draught channel and high pressure
Sap cavity is communicated with mixing chamber.
Breathing piece and matched ring of lifting are round or regular polygon, and embodiment uses circular design.
The rosette needs for breathing on piece are corresponding with the outlet valve hole site on main valve stem.Limitation breathing piece in order to prevent
Rotation avoids misplacing between breathing piece and expiration valve opening, and locating plate is provided on main valve stem, and locating plate cooperation breathes on the inside of piece
Gap between rosette, when breathe piece and it is matched lift ring using regular polygon design when, positioning can not be used
Chip architecture, and breathing piece rotation is limited with other locating slot modes.
Pump housing shell is covered tightly with bung flange to be solidly connected, and is slidably connected between bung flange lid and nozzle pressing head, the limitation spray of bung flange lid
Mouth pressing and big piston, main valve stem moving direction, move up and down it can only along central axis.
Bar bottom piston is arranged between main valve stem and needle, and is allowed to slide up and down between main valve stem and needle, bar
The inner wall sliding friction of bottom piston and admission chamber.When main valve stem moves down, bar bottom piston is moved up with respect to needle, is exposed in needle
Hole；When main valve stem moves up, bar bottom piston closes needle inner hole with respect to needle downlink.
Gap between the big inner wall of piston and the top of main valve stem constitutes high pressure draught channel, the gas hole of main valve stem
It is communicated with the high pressure draught channel.
Admission chamber check valve is made of steel ball, bellmouth and anticreep bayonet, and anticreep bayonet avoids steel ball from deviating from bellmouth.
The top of pump housing shell is provided with air equalizer opening, and outside air in the air equalizer opening and bottle by communicating.
The both ends of mixing chamber are provided with highly dense foam screen, under high pressure draught promotion, a large amount of foams can be generated, into nozzle
Press head.
When depressing nozzle pressing head, big piston is pushed down in the lower end of nozzle pressing head, big piston driving main valve stem synchronizes down
Row is lifted ring on the outside of breathing piece at this time and is scheduled on the inner wall of big piston, DL synchronization；It and is to exhale above the rosette of inside
Hole after air pressure is increased, breathes the rosette on the inside of piece and is pushed by the high pressure gas in inlet chamber, and elastic deformation occurs for rosette,
Exhalation passages are formed, the pressure-air in inlet chamber is along the expiration valve opening on main valve stem, by exhalation passages and high pressure draught
Channel, referred to as exhalation process intracavitary into gas-liquid mixed；As main valve stem moves down, bar bottom piston due to admission chamber friction
It makes a concession upwards, concedes the feed pathway of needle, the liquid in admission chamber also enters mixing chamber.
Expanding foam solution and pressure-air are mixed in mixing chamber, and by producing after the mixing chamber up and down highly dense mesh of two sides
Raw a large amount of foams, spray along the inner passage of nozzle pressing head.
When big piston reaches downward range, the piston wall of big piston declines, the air pressure balance on pump housing shell
Hole is opened, and gas is communicated with atmosphere in bottle, realizes ventilation.
After unclamping nozzle pressing head, under the upwards thrust of spring, main valve stem drives big piston reset uplink, exhales at this time
Rosette on the inside of suction piece is withstood by main valve stem, simultaneously because for negative pressure and outside air, there are pressure differences in inlet chamber, is exhaled
Valve opening is covered by rosette, and exhalation passages completely close；Pressure due to being negative pressure in inlet chamber, in ambient pressure and inlet chamber
Differential pressure compels breathing piece outer rim, and drive is lifted to be deformed under circumferential direction, and deformation occurs for elastic bracket, shape between expiration piece outer rim and big piston
At air intake passage, it is full of air in inlet chamber, which is referred to as breathing process.
In breathing process, for needle with main valve stem uplink, bar bottom piston cuts off the internal channel of needle, and feed liquor cavity space increases
Generate negative pressure, in bottle expanding foam solution along suction pipe, push steel ball open, stored along entering in admission chamber after check valve.
In breathing process, main valve stem uplink pushes the rosette on the inside of breathing piece, closes exhaling hole, it is possible to prevente effectively from
Expanding foam solution is inhaled into inlet chamber.
After air-breathing, big piston reset blocks air equalizer opening, and the expanding foam solution in bottle is avoided to leak.
Claims (8)
1. a kind of foam pump with breathing piece, is made of, middle pump body includes outside the pump housing nozzle pressing head, bung flange lid and the pump housing
Shell, feed liquor check valve, big piston, main valve stem, needle, bar bottom piston, spring, fixed card ring composition；Big piston and pump housing shell
Between constitute inlet chamber, be admission chamber between feed liquor check valve and needle, main valve stem and big piston upper section constitute high pressure sap cavity,
It is provided with mixing chamber above big piston, mixing chamber is provided with foam screen, it is characterised in that: flexible support is arranged on the main valve stem
Frame is connected on the outside of elastic bracket and lifts ring, lifts ring and breathes the outer rim of piece and is in contact, and elastic bracket is withstood on piece is breathed
The inner wall bottom of big piston；Multiple rosettes are provided on the inside of breathing piece, breathing piece is arranged on elastic bracket, and breathes
A part of piece is clamped by the bracket of main valve stem and big piston；Outlet valve is provided on main valve pole support below rosette
Hole, the top of rosette are exhaling hole and high pressure draught channel on big piston；High pressure draught channel and high pressure sap cavity, with it is mixed
Chamber is closed to communicate.
2. the foam pump according to claim 1 with breathing piece, it is characterised in that: the breathing piece and matched
Ring is lifted as round or regular polygon.
3. the foam pump according to claim 1 with breathing piece, it is characterised in that: be provided with positioning on the main valve stem
Piece, locating plate cooperation breathe the gap between the rosette on the inside of piece, limitation breathing piece rotation.
4. the foam pump according to claim 1 with breathing piece, it is characterised in that: the pump housing shell is covered tightly with bung flange
It is solidly connected, is slidably connected between bung flange lid and nozzle pressing head, the pressing of bung flange lid limits nozzle and big piston, main valve stem movement side
To moving up and down it can only along central axis.
5. the foam pump according to claim 1 with breathing piece, it is characterised in that: bar bottom piston is arranged in main valve
It between bar and needle, and is allowed to slide up and down between main valve stem and needle, the inner wall sliding of bar bottom piston and admission chamber rubs
It wipes；When main valve stem moves down, bar bottom piston is moved up, and exposes needle inner hole；When main valve stem moves up, bar bottom piston is closed in needle
Hole.
6. the foam pump according to claim 1 with breathing piece, it is characterised in that: the high pressure draught channel is by living greatly
Gap between the inner wall of plug and the top of main valve stem is constituted, and the exhaling hole of main valve stem is communicated with high pressure draught channel.
7. the foam pump according to claim 1 with breathing piece, it is characterised in that: the admission chamber check valve is by steel
Pearl, bellmouth and anticreep bayonet composition.
8. the foam pump according to claim 1 with breathing piece, it is characterised in that: the top of the pump housing shell is arranged
There is air equalizer opening, when big piston is located at extreme lower position, air equalizer opening communicates outside air with air in bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659039.7A CN110329653A (en) | 2019-07-22 | 2019-07-22 | Foam pump with breathing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659039.7A CN110329653A (en) | 2019-07-22 | 2019-07-22 | Foam pump with breathing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110329653A true CN110329653A (en) | 2019-10-15 |
Family
ID=68146850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910659039.7A Pending CN110329653A (en) | 2019-07-22 | 2019-07-22 | Foam pump with breathing piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110329653A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320060A (en) * | 2020-11-03 | 2021-02-05 | 温州联豪化妆品有限公司 | Glass bead extrusion type foam pump and method for generating foam by foam pump |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10324357A (en) * | 1997-05-26 | 1998-12-08 | Daiwa Can Co Ltd | Pump system bubbling container |
| US20080257911A1 (en) * | 2007-04-17 | 2008-10-23 | Choi Hee Jin | Airless dispensing pump container with an airtight push down type nozzle head |
| CN102204796A (en) * | 2011-05-18 | 2011-10-05 | 梅元红 | Foam pump with external spring |
| US20120241477A1 (en) * | 2011-03-22 | 2012-09-27 | Daiwa Can Company | Foam-Dispensing Pump Container |
| US8360283B1 (en) * | 2011-08-17 | 2013-01-29 | Zhejiang JM Industry Co., Ltd | Liquid foaming pump |
| JP2015202903A (en) * | 2014-04-16 | 2015-11-16 | 株式会社ダイゾー | Spray product |
| CN105923253A (en) * | 2016-05-20 | 2016-09-07 | 正庄发展有限公司 | Press-type foam pump and discharge rate control method thereof |
| CN205554988U (en) * | 2016-04-14 | 2016-09-07 | 宁波圣捷喷雾泵有限公司 | Push type emulsion pump |
| CN206954844U (en) * | 2017-06-06 | 2018-02-02 | 余姚市宝明日用品有限公司 | Foam pump |
| CN210311612U (en) * | 2019-07-22 | 2020-04-14 | 沈利庆 | Foam pump with breathing sheet |
-
2019
- 2019-07-22 CN CN201910659039.7A patent/CN110329653A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10324357A (en) * | 1997-05-26 | 1998-12-08 | Daiwa Can Co Ltd | Pump system bubbling container |
| US20080257911A1 (en) * | 2007-04-17 | 2008-10-23 | Choi Hee Jin | Airless dispensing pump container with an airtight push down type nozzle head |
| US20120241477A1 (en) * | 2011-03-22 | 2012-09-27 | Daiwa Can Company | Foam-Dispensing Pump Container |
| CN102204796A (en) * | 2011-05-18 | 2011-10-05 | 梅元红 | Foam pump with external spring |
| US8360283B1 (en) * | 2011-08-17 | 2013-01-29 | Zhejiang JM Industry Co., Ltd | Liquid foaming pump |
| JP2015202903A (en) * | 2014-04-16 | 2015-11-16 | 株式会社ダイゾー | Spray product |
| CN205554988U (en) * | 2016-04-14 | 2016-09-07 | 宁波圣捷喷雾泵有限公司 | Push type emulsion pump |
| CN105923253A (en) * | 2016-05-20 | 2016-09-07 | 正庄发展有限公司 | Press-type foam pump and discharge rate control method thereof |
| CN206954844U (en) * | 2017-06-06 | 2018-02-02 | 余姚市宝明日用品有限公司 | Foam pump |
| CN210311612U (en) * | 2019-07-22 | 2020-04-14 | 沈利庆 | Foam pump with breathing sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320060A (en) * | 2020-11-03 | 2021-02-05 | 温州联豪化妆品有限公司 | Glass bead extrusion type foam pump and method for generating foam by foam pump |
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