CN110282243A - A kind of pressing liquid foam dispensing device and container - Google Patents
A kind of pressing liquid foam dispensing device and container Download PDFInfo
- Publication number
- CN110282243A CN110282243A CN201910471521.8A CN201910471521A CN110282243A CN 110282243 A CN110282243 A CN 110282243A CN 201910471521 A CN201910471521 A CN 201910471521A CN 110282243 A CN110282243 A CN 110282243A
- Authority
- CN
- China
- Prior art keywords
- liquid
- foam
- dispensing device
- sealing member
- air
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2547/00—Closures with filling and discharging, or with discharging, devices
Abstract
The present invention provides a kind of pressing liquid foam dispensing device, the button including being equipped with foam inlet and outlet, for mixing liquid and gas and hybrid junctioin one end for generating foam is run through after retaining collar and is connect with button；Liquid sealing member is connect after running through air seal component with the hybrid junctioin other end；Sealing connecting rod one end is in liquid sealing member and affixed with liquid sealing member, and sheathed spring outside sealing connecting rod, both ends of the spring is connected on liquid sealing member and sealing connecting rod respectively；The top of cylinder body covers outside liquid sealing member and gas seal member and surrounds air chamber, and the lower part of cylinder body is equipped with the fluid passage penetrated through with liquid sealing member inner cavity, and the sealing connecting rod other end is inserted into fluid passage.The present invention also provides a kind of pressing liquid foams to distribute container, is made of pressing liquid foam dispensing device and container bottle sealed connection.Device sealing effect provided by the invention is good, and foam is careful abundant, presses smooth, easy to use, energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of liquid foam distributor, especially a kind of pressing liquid foam dispensing device and container.
Background technique
Liquid dispensing apparatus is widely used in distribution liquid, and the content of part distribution is non-foam shape (such as liquid or glue
Body shape), the content that pumps out of such as dish washing liquid used in everyday or hand cleanser, this liquid dispensing apparatus is easy to be lost,
It cannot sufficiently be contacted with object when use, so that cannot make full use of.
In the prior art, it joined blowing activator in partially liq, bubble generated in the mixed process of liquid and gas
Foam carries out foaming distribution by liquid pump with the liquid foam distributor of this cooperation, but there are the following problems:
1, the conduit between the cylinder body and piston of piston pump can aging over time, to reduce piston pump
Function.The decrease of such conduit intensity, also results in leakage air, so that pumped air amount is few, leads to foam
Shape is unstable, and the mixing ratio of air and liquid reduces.
2, between the cylinder body and piston of piston pump, cooperation sealing is too tight, unsmooth so as to cause shuttling movement above and below piston
Smooth, the strength for needing user to press piston in this way is very big, while in release, rebound has some setbacks.Because of cylinder sidewall
Have an air balance hole, seals will with this balance hole of cylinder interference fit seal, to guarantee that product is not let out in transit
Dew.Only interference fit is big, the hydraulic seal that can have just had.It results in air seal component to be oriented to up and down in this way to have some setbacks
Freely.
3, existing liquid foam distributor can issue sharp noise of uttering long and high-pitched sounds when in use.
4, existing liquid foam distributor is in use, is easy to appear liquid and is leaked in cylinder body container, thus shadow
Ring product function.
5, the foam that existing liquid foam distributor generates is not careful abundant enough.
Summary of the invention
The technical problem to be solved by the present invention is the sealing effect for how improving liquid foam dispensing device is good, make its bubble
Foam is abundant, and presses smooth.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is to provide a kind of pressing liquid foam dispensing device,
It is characterized by comprising the button for being equipped with foam inlet and foam outlet and for mixing liquid and gas and generate the mixed of foam
Connector is closed, described hybrid junctioin one end is connect after running through retaining collar with the foam inlet of the button；
Liquid sealing member is connect after running through air seal component with the other end of the hybrid junctioin；Sealing connecting rod one end is same
It is located in the liquid sealing member and affixed with the liquid sealing member, sheathed spring outside the sealing connecting rod, institute
It states spring one end to be connected on the liquid sealing member, the spring other end is connected in the sealing connecting rod；
The top of cylinder body is covered in the liquid sealing member and the air seal component outer, the top of the cylinder body, described
Air chamber is surrounded between liquid sealing member, the air seal component, the lower part of the cylinder body is equipped with and the hydraulic seal
The fluid passage of member lumens perforation, the sealing connecting rod other end are inserted into the fluid passage.
Preferably, the foam inlet junction of the hybrid junctioin and the button is equipped with mesh porous member.
Preferably, the seal member on and off fluid passage is equipped in the fluid passage of the cylinder body, it is described
The seal member on and off fluid passage also is provided in hybrid junctioin.
Preferably, the sealing connecting rod other end connection lock, for spring pocket in sealing connecting rod, spring one end is connected to institute
It states on liquid sealing member, spring other end connection lock.
Preferably, the fluid passage bottom connected sucking pipe of the cylinder body.
Preferably, hydraulic seal lip, air seal lip are successively arranged by centre to two sides on the air seal component
Side and outer wall upper-lower seal lip are equipped with bleeder port between the air seal lip and the hydraulic seal lip；It is described
Outer wall upper-lower seal lip is the arc of indent, is formed between the outer wall upper-lower seal lip and the upper inside wall of the cylinder body
The lubricant reservoir slot of one indent.
Preferably, the air chamber is equipped with atmospheric equilibrium stomata, is equipped on the inside of the atmospheric equilibrium stomata flexible close
Seal ring；The atmospheric equilibrium stomata is described when the sealing ring, which is squeezed, to be pressed off under natural conditions by the sealing ring seal
Air in air chamber is flowed out by the atmospheric equilibrium stomata.
Preferably, the hybrid junctioin bottom centre is equipped with air inlet passage, and the air inlet passage top connects
Mixing chamber is connect, the mixing chamber top is equipped with return flow line, and the return flow line connects the foam inlet of the button.
The present invention also provides a kind of pressing liquid foams to distribute container, it is characterised in that: presses hydraulic fluid including such as above-mentioned
Body foam-dispensing device and container bottle for holding liquid, the retaining collar of the pressing liquid foam dispensing device with it is described
Container bottle is tightly connected.
It is highly preferred that the top open part of the container bottle is set to the retaining collar of the pressing liquid foam dispensing device
Between cylinder body, the top open part of the container bottle is threadedly coupled with the retaining collar.
Pressing liquid foam dispensing device provided by the invention in use, by hold in a reservoir hand cleanser, shampoo,
Perfume, beverage or various liquid, final output is foam-like liquid, simple and convenient.
When pressed by a user, since liquid sealing member and hybrid junctioin link together, the two one
It rises and moves down, air inlet passage is closed, and liquid rising passway is opened, and air and liquid are just distributed into hybrid junctioin
It is mixed, is then flowed out by return flow line.It is further mixed by mesh porous member, to promote careful abundant
The formation of foam.
When the button is released, liquid sealing member will be pushed back its initial position by spring, and sealing connecting rod seals liquid and rises
Channel, the decline of liquid cavity pressure, seal member ball rise, and lower end fluid passage is opened, and liquid suction passage rises to liquid
Channel；The air inlet passage of air seal simultaneously is opened, and air enters air chamber.When button is to initial position, seal member
Ball hangs down under the effect of gravity, seals liquid reflux channel, bleed passage is closed in the sealing lip frontier juncture of air seal component.
As above by ceaselessly push button, constantly the liquid in container can be pumped into and form foam ejection.Together
When also reduce the dosage of water, reached energy-saving and environment-friendly technical effect.
Compared with prior art, pressing liquid foam dispensing device provided by the invention has the following beneficial effects:
1, environmentally-friendly plastic can be used in whole components in the present apparatus, is renewable recycling using material, does not need to do any
Deconsolidation process.After use, it can directly recycle, material can reuse, high-efficiency environment friendly.
2, using simple, conveniently, noiseless.
3, due to using mesh porous member, foam can be more careful abundant.
4, since air seal component is equipped with an outer wall upper-lower seal lip, setting forms an indent in the lip
Lubricant reservoir slot is lubricated so as to distribute lubricant, further reduced air seal component leakproofness and
With the frictional resistance of cylinder interior, user can easily be pressed, and be oriented to up and down smooth.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pressing liquid foam dispensing device provided in this embodiment；
Fig. 2 is the structural schematic diagram of mesh porous member；
Fig. 3 is the structural schematic diagram of air seal component；
Fig. 4 is the structural schematic diagram of cylinder body；
Fig. 5 is the structural schematic diagram of hybrid junctioin；
Fig. 6 is the structural schematic diagram of sealing connecting rod；
Fig. 7 is the structural schematic diagram of liquid sealing member；
Fig. 8 is the structural schematic diagram for pressing liquid foam distribution container.
Specific embodiment
Fig. 1 is the structural schematic diagram of pressing liquid foam dispensing device provided in this embodiment, the pressing fluid bubble
Foam distributor includes that button 1, a retaining collar 2, one equipped with foam inlet and foam outlet is used to generate careful foam
Mesh porous member 3, one for mixing liquid and gas and the hybrid junctioin 4 for generating foam, 4 upper end of hybrid junctioin
It is connect through retaining collar 2 and with button 1, mesh porous member 3 is connected in hybrid junctioin 4 and is installed in button 1
At foam inlet.In button 1, connected between foam inlet and foam outlet by foam passages 101.
Liquid sealing member 6 runs through air seal component 5, and connect with 4 lower end of hybrid junctioin；8 upper end of sealing connecting rod
It is same to be located in inside liquid sealing member 6 and affixed with 6 upper end of liquid sealing member.8 lower end of sealing connecting rod connection lock 9, bullet
10 sets of spring in sealing connecting rod 8,10 one end of spring is connected on liquid sealing member 6,10 other end of spring connection lock 9.
It further include the cylinder body 7 for being respectively equipped with fluid passage and gas passage；The liquid that sealing connecting rod 8 is inserted into cylinder body 7 is logical
To which the liquid for forming sealing pumps out channel and an air flow passage in road.
7 sets of cylinder body outside liquid sealing member 6 and gas seal member 5,7 upper inside wall of cylinder body, liquid sealing member 6
Surround air chamber 71 between outer wall, 5 inner wall of air seal component, 7 lower part of cylinder body is equipped with to be penetrated through with 6 inner cavity of liquid sealing member
Fluid passage 72.8 lower end of sealing connecting rod is inserted into the fluid passage 72 of cylinder body 7.
A sealing for being used on and off fluid passage 72 is equipped in the present embodiment, in the fluid passage 72 of cylinder body 7
Part-ball 11.One also is provided in hybrid junctioin 4 for closing or being connected seal member-pearl ball 11 of fluid passage.
The 72 bottom connected sucking pipe 13 of fluid passage of cylinder body 7.
In conjunction with Fig. 2, mesh porous member 3 includes cylindrical body 31, and the both ends of cylindrical body 31 are provided at least
One layer of fine and close gauze 32.
In conjunction with Fig. 3, hydraulic seal lip 51, air seal lip are successively arranged by centre to two sides on air seal component 5
Side 52 and outer wall upper-lower seal lip 54 are equipped with bleeder port 53 between air seal lip 52 and hydraulic seal lip 51,
Outer wall upper-lower seal lip 54 is the arc of indent, lower on the outer wall to form one between sealing 54 extension of lip and 7 inner wall of cylinder body
The lubricant reservoir slot 55 of a indent.
In conjunction with Fig. 4, cylinder body 7 includes upper cylinder 701 and lower cylinders 702, and the diameter of upper cylinder 701 is greater than lower part cylinder
Body 702, lower cylinders 702 are connect with 701 bottom centre of upper cylinder, and upper cylinder 701 is extended at the top of lower cylinders 702
It is interior, it is fluid passage 72 in lower cylinders 702.The lower edge of upper cylinder 701 is equipped with atmospheric equilibrium stomata 703, atmospheric equilibrium
Sealing ring 14 is equipped at stomata 703.703 nature of atmospheric equilibrium stomata be it is closed by sealing ring 14, when sealing ring 14
It is squeezed when pressing off, the air of air chamber will be flowed out by atmospheric equilibrium stomata 703.
In conjunction with Fig. 5,4 bottom centre of hybrid junctioin and the buckle of air seal component 5 form air inlet passage 41, air
Mixing chamber is connected into 41 top of channel, mixing chamber periphery connects initial foam assignment channel 42, and mixing chamber top is equipped with reflux
Channel 43.Air mixes at mixing chamber with liquid, generates foam.
In conjunction with Fig. 6, sealing connecting rod 8 is made of the upper end body of rod 81 and the connection of the lower end body of rod 82, and the outer diameter of the upper end body of rod 81 is big
In the outer diameter of the lower end body of rod 82.
In conjunction with Fig. 7, liquid sealing member 6 includes the upper seal 61 and lower guide member 62 interconnected, and top is close
The top bending outward of 61 bottom extension of sealing, forms air inlet port 63.It is set in upper seal 61 and lower guide member 62
There is the liquid rising passway 64 of perforation.
Above-mentioned pressing liquid foam dispensing device is tightly connected with the container bottle 15 for holding liquid, that is, forms a pressing
Liquid foam distributes container, as shown in Figure 8.
In the present embodiment, the top open part periphery of container bottle 15 is equipped with external screw thread, and 2 inner wall of retaining collar is equipped with interior spiral shell
The top open part of line, container bottle 15 is threadedly coupled with retaining collar 2, and edge and fixing sleeve on the top open part of container bottle 15
Gasket seal 12 is equipped between ring 2.
In use, containing liquid in container bottle 15, suction pipe 13 immerses in liquid pressing liquid foam distribution container, pressing
Button 1, hybrid junctioin 4, liquid sealing member 6 and gas seal member 5 move down, and air inlet passage 41 is closed,
Gap between bleed passage 16(liquid sealing member 6 and air seal component 5) it opens, liquid rising passway (sealing connecting rod 8
With the gap between liquid sealing member 6) it opens, the air of air chamber 71 and the liquid of fluid passage 72 just distribute to mixing and connect
The mixing chamber for connecing device 4 is further mixed by mesh porous member 3, to promote the formation of foam.Finally, foam is from pressing
Foam passages 101 in button 1 flow out.
When release button 1, liquid sealing member 6 will push back to initial position by spring 10.In liquid sealing member 6
During returning to initial position, sealing connecting rod 8 seals liquid rising passway, and the pressure of fluid passage 72 declines (less than 1
Atmospheric pressure), ball 11 rises, and the fluid passage of lower end is opened, and liquid suction passage 13 rises to fluid passage, while gas
The air inlet passage 41 of sealing is opened, and air enters air chamber 71, and when button 1 returns to initial position, ball 11 is made in gravity
Sagging under, return flow line 43, bleed passage 16 are closed.
In use, the closed return flow line 43 of ball 11 of top, the sealing lip frontier juncture of air seal component 5, which is closed, lets out
Gas channel, two seals flow back into air chamber and lead to gas to effectively barrier mixing chamber and foam assignment channel residual liquid
The problem of seal member 5 and the up and down motion of 7 inner wall of cylinder body have some setbacks (lubricant is rinsed by residual liquid).
In order to reduce the risk of function deterioration, also for being obtained between air seal component 5 and cylinder body 7 generally more
Good guidance, is arranged lubricant reservoir slot 55 on air seal component 5, which borrows over time
Distribution is helped to be open, to distribute the lubricant of such as silicone oil etc, which can improve the inner wall of piston seal and air cylinder 7
Between guidance.
Pressing liquid foam provided in this embodiment distribution container using when there is no noise, and the foam generated is careful rich
It is rich.
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that under the premise of not departing from the method for the present invention, can also be made for those skilled in the art
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are equivalent embodiment of the invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution of any equivalent variations made by above-described embodiment, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of pressing liquid foam dispensing device, it is characterised in that: the button (1) including being equipped with foam inlet and foam outlet
With for mixing liquid and gas and generate the hybrid junctioin (4) of foam, fixing sleeve is run through in described hybrid junctioin (4) one end
Ring (2) is connect with the foam inlet of the button (1) afterwards；
Liquid sealing member (6) is connect with the other end of the hybrid junctioin (4) afterwards through air seal component (5)；Sealing
Connecting rod (8) one end is located in together in the liquid sealing member (6) and, the sealing affixed with the liquid sealing member (6)
The external sheathed spring (10) of connecting rod (8), described spring (10) one end are connected on the liquid sealing member (6), the spring
(10) other end is connected on the sealing connecting rod (8)；
The top of cylinder body (7) covers, the cylinder body (7) external in the liquid sealing member (6) and the air seal component (5)
Top, the liquid sealing member (6), surround air chamber (71) between the air seal component (5), the cylinder body (7)
Lower part be equipped with the fluid passage (72) that penetrate through with the liquid sealing member (6) inner cavity, sealing connecting rod (8) other end is slotting
Enter in the fluid passage (72).
2. a kind of pressing liquid foam dispensing device as described in claim 1, it is characterised in that: the hybrid junctioin (4)
Mesh porous member (3) are equipped with the foam inlet junction of the button (1).
3. a kind of pressing liquid foam dispensing device as described in claim 1, it is characterised in that: the liquid of the cylinder body (7)
It is equipped with the seal member on and off fluid passage in channel (72), also is provided with being used in the hybrid junctioin (4)
The seal member of on and off fluid passage.
4. a kind of pressing liquid foam dispensing device as described in claim 1, it is characterised in that: the sealing connecting rod (8) is another
One end connection lock (9), spring (10) cover on sealing connecting rod (8), and spring (10) one end is connected to the liquid sealing member
(6) on, spring (10) other end connection lock (9).
5. a kind of pressing liquid foam dispensing device as described in claim 1, it is characterised in that: the liquid of the cylinder body (7)
Channel (72) bottom connected sucking pipe (13).
6. a kind of pressing liquid foam dispensing device as described in claim 1, it is characterised in that: the air seal component
(5) hydraulic seal lip (51), air seal lip (52) and outer wall upper-lower seal lip are successively arranged by centre to two sides on
Side (54) is equipped with bleeder port (53) between the air seal lip (52) and the hydraulic seal lip (51)；The outer wall
Upper-lower seal lip (54) is the arc of indent, the upper inside wall of the outer wall upper-lower seal lip (54) and the cylinder body (7)
Between formed an indent lubricant reservoir slot (55).
7. a kind of pressing liquid foam dispensing device as described in claim 1, it is characterised in that: set on the air chamber (71)
Have atmospheric equilibrium stomata (703), is equipped with sealing ring flexible (14) on the inside of the atmospheric equilibrium stomata (703)；The atmosphere is flat
Stomata (703) are weighed under natural conditions by the sealing ring (14) closing, when the sealing ring (14), which is squeezed, to be pressed off, the sky
Air in air cavity (71) is flowed out by the atmospheric equilibrium stomata (703).
8. a kind of pressing liquid foam dispensing device as described in claim 1, it is characterised in that: the hybrid junctioin (4)
Bottom centre is equipped with air inlet passage (41), air inlet passage (41) the top connection mixing chamber, on the mixing chamber
Portion is equipped with return flow line (43), and the return flow line (43) connects the foam inlet of the button (1).
9. a kind of pressing liquid foam distributes container, it is characterised in that: described in any item by hydraulic fluid including such as claim 1 ~ 8
Body foam-dispensing device and container bottle (15) for holding liquid, the retaining collar of the pressing liquid foam dispensing device
(2) it is tightly connected with the container bottle (15).
10. a kind of pressing liquid foam as claimed in claim 9 distributes container, it is characterised in that: the container bottle (15)
Top open part is set between the retaining collar (2) and cylinder body (7) of the pressing liquid foam dispensing device, the container bottle
(15) top open part is threadedly coupled with the retaining collar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471521.8A CN110282243A (en) | 2019-05-31 | 2019-05-31 | A kind of pressing liquid foam dispensing device and container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471521.8A CN110282243A (en) | 2019-05-31 | 2019-05-31 | A kind of pressing liquid foam dispensing device and container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110282243A true CN110282243A (en) | 2019-09-27 |
Family
ID=68003187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910471521.8A Pending CN110282243A (en) | 2019-05-31 | 2019-05-31 | A kind of pressing liquid foam dispensing device and container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110282243A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09183451A (en) * | 1997-01-07 | 1997-07-15 | Yoshino Kogyosho Co Ltd | Foam jetting pumping container |
| CN101284262A (en) * | 2007-04-10 | 2008-10-15 | 崔喜真 | Foam pump dispenser having leakage prevention function against reverse flow |
| CN101492109A (en) * | 2008-01-24 | 2009-07-29 | 高爽工业公司 | Foam pump with improved piston structure |
| CN202704238U (en) * | 2012-08-16 | 2013-01-30 | 上海保柏日化有限公司 | Improved pressing liquid foam distribution device and container |
| CN105054840A (en) * | 2015-08-17 | 2015-11-18 | 厦门建霖工业有限公司 | Foaming soap dispensing pump and foaming soap dispensing device and method using same |
| CN207242445U (en) * | 2017-09-26 | 2018-04-17 | 珠海市华迅塑料泵业有限公司 | A kind of external spring foam pump |
-
2019
- 2019-05-31 CN CN201910471521.8A patent/CN110282243A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09183451A (en) * | 1997-01-07 | 1997-07-15 | Yoshino Kogyosho Co Ltd | Foam jetting pumping container |
| CN101284262A (en) * | 2007-04-10 | 2008-10-15 | 崔喜真 | Foam pump dispenser having leakage prevention function against reverse flow |
| CN101492109A (en) * | 2008-01-24 | 2009-07-29 | 高爽工业公司 | Foam pump with improved piston structure |
| CN202704238U (en) * | 2012-08-16 | 2013-01-30 | 上海保柏日化有限公司 | Improved pressing liquid foam distribution device and container |
| CN105054840A (en) * | 2015-08-17 | 2015-11-18 | 厦门建霖工业有限公司 | Foaming soap dispensing pump and foaming soap dispensing device and method using same |
| CN207242445U (en) * | 2017-09-26 | 2018-04-17 | 珠海市华迅塑料泵业有限公司 | A kind of external spring foam pump |
Non-Patent Citations (1)
| Title |
|---|
| 陈著声: "介绍一种新型鼻药瓶──手压喷雾式鼻药瓶" * |
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