CN103671035B - A kind of noise reduction valve plate and air pump - Google Patents
A kind of noise reduction valve plate and air pump Download PDFInfo
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- CN103671035B CN103671035B CN201310512134.7A CN201310512134A CN103671035B CN 103671035 B CN103671035 B CN 103671035B CN 201310512134 A CN201310512134 A CN 201310512134A CN 103671035 B CN103671035 B CN 103671035B
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- 230000009467 reduction Effects 0.000 title claims abstract description 26
- 238000010943 off-gassing Methods 0.000 claims abstract description 3
- 239000010409 thin film Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 2
- 210000003437 trachea Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 210000004712 air sac Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
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Abstract
The invention discloses a kind of noise reduction valve plate and air pump, this valve block have at least two can the blade of elastics wing, this valve block also has at least one mounting post, and the root of each blade is connected with mounting post respectively；This mounting post at least end face is provided with some air drains for diffusing air current.This air pump is provided with above-mentioned noise reduction valve plate, and this noise reduction valve plate is matched with in air pump as the outgassing nonreturn valve of air pump.The structure of valve block is improved by the present invention, utilizes its air drain that air-flow is dispersed into some little airflows, makes air velocity reduce, and reduces pneumatic noise, reduces the purpose of air pump noise.
Description
Technical field
The present invention relates to air pump field, particularly relate to a kind of noise reduction valve plate and air pump.
Background technology
At present, the air pump of prior art generally use valve block as shown in Figure 1 as unidirectional flow distribution apparatus of giving vent to anger, this valve block
Overall rounded structure, its have three can blade 1 ＇ of elastics wing, and these three blade 1 ＇ are by three muscle being radially arranged
Bar 2 ＇ separates, and the two ends in each blade 1 ＇ circumferentially direction integrally connect with rib 2 ＇ respectively.In the middle part of the end face of this valve block also
Having mounting post 3 ＇, the end face of this mounting post 3 ＇ is plane.This valve block, in air pump, is to utilize its each blade 1 ＇
Elastics wing up and down open or block correspondence venthole, form unidirectional flow, specifically, each blade 1 ＇ is at air-flow
Be swung up under pressure effect, make venthole corresponding in air pump open, then air-flow is by venthole and via mounting post end face stream
To the exhaustor of air pump.Owing to the mounting post end face of valve block is planar structure, when causing the mounting post end face of airflow passes valve block,
Its circulation area is relatively big, and air-flow velocity is very fast, thus produces bigger pneumatic noise, and this operation noise resulting in air pump is relatively big,
Noise pollution can be brought to the life of people.
Summary of the invention
It is an object of the invention to overcome the deficiency of prior art, it is provided that a kind of noise reduction valve plate and air pump, it can effectively reduce gas
Stream noise, reduces the purpose of air pump noise.
The technical solution adopted for the present invention to solve the technical problems is: a kind of noise reduction valve plate, this valve block has at least two can
The blade of elastics wing, this valve block also has at least one mounting post, and the root of each blade is connected with mounting post respectively；This installation
Post at least end face is provided with some air drains for diffusing air current.
Further, described each air drain is arranged along the radial direction of described mounting post respectively, and described at least two blades are respectively provided with
At least one air drain corresponds.
Further, the two ends of described each air drain opening respectively.
Further, separated by the rib radially arranged between each blade of described valve block, the inner end of rib and mounting post
Side integrally connects；Each blade is respectively equipped with a buffer structure for the end being connected with rib, and the assembling extruding to each blade carries
For deformation cushion space.
Further, described buffer structure is breach of stepping down.
Further, described buffer structure is thin film.
Further, the quantity of described blade and rib is respectively three, and described each blade divides along the circumference of described valve block respectively
Cloth.
A kind of air pump, this air pump is provided with noise reduction valve plate as above, and this noise reduction valve plate is joined as the outgassing nonreturn valve of air pump
Together in air pump.
Further, described air pump also include having exhaustor and the upper cover of air inlet pipe, air chamber, at least two breather check valves,
There is the piston of at least two air bags, cylinder, base, linkage and motor；One is had for installing described valve block in the middle part of air chamber
Receiving chamber, and there is at the bottom of the chamber in this receiving chamber the venthole that at least two is corresponding with each blade of described valve block, described valve block
Being installed in this receiving chamber by its mounting post, and its each blade is attached at the venthole of correspondence respectively, upper cover is the most right with air chamber
Should coordinate, and form inlet chamber spaced apart from each other and outlet chamber between air chamber, inlet chamber is connected with the air inlet pipe of upper cover, gives vent to anger
Chamber is connected with the exhaustor of upper cover and the receiving chamber of air chamber；The outer border of air chamber is additionally provided with what at least two groups were connected with inlet chamber
Air inlet, and the air inlet of each group comprises at least one air inlet respectively；Each breather check valve is installed on air chamber, opens for unidirectional
That opens or block air chamber respectively organizes air inlet；Piston tip, cylinder, base are in turn secured to air chamber bottom, each Air sac cover of piston
Being loaded in cylinder, linkage and motor are respectively arranged in base, and the drive shaft of motor is in transmission connection mutually with linkage, even
Linkage becomes socket to coordinate with the balloon-shaped of piston；Each venthole of air chamber and each group of air inlet are respectively with each air bag of piston one by one
Corresponding.
Further, described linkage includes that eccentric, draw point and connecting rod rack, described motor are installed on described base
Bottom, eccentric is installed in described base, and the drive shaft of described motor stretches in described base, and with eccentric Joint；
Eccentric is connected with connecting rod rack by draw point；Connecting rod rack is provided with at least two through hole, and at least two through hole of this connecting rod rack divides
Do not socket-connect with at least two air bags of described piston and coordinate；Described breather check valve is beveled structure.
The invention has the beneficial effects as follows:
1, at least air drain is set at the end face of the mounting post of valve block due to it so that during airflow passes mounting post end face, can be by gas
Groove is dispersed into some little airflows, makes air velocity reduce, thus reduces pneumatic noise, makes air pump reach the purpose of noise reduction；
2, preferably it makes each air drain be distributed along the radial direction of mounting post as a kind of, and make each blade at least air drain with
Corresponding, and the two ends of each air drain respectively opening, this can well utilize each air drain that air-flow is carried out water conservancy diversion and shunting, enter
One step reduces air velocity, thus reduces pneumatic noise further；
3, it is respectively equipped with a buffer structure, to each blade due to each blade of its valve block for the outer end being connected with rib
Assembling extruding provide deformation cushion space so that the valve block of the present invention in an assembling process, when its blade is squeezed and occurs
Buffer structure can be utilized during deformation to discharge its deformation, thus avoid blade generation arching phenomenon, and ensure the air-tightness of air pump；
4, as a kind of preferred, its buffer structure uses thin film to realize, and is possible not only to the extruding of the assembling to each blade and provides shape
Become cushion space, it is also possible to strengthen the intensity of each blade, thus improve gas pump performance.
Below in conjunction with drawings and Examples, the present invention is described in further detail；But a kind of noise reduction valve plate of the present invention and air pump
It is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the valve block of prior art；
Fig. 2 is the structural representation of the valve block of embodiment one present invention；
Fig. 3 is the decomposing schematic representation of the air pump of embodiment one present invention；
Fig. 4 is the generalized section of the air pump of embodiment one present invention；
Fig. 5 is the structural representation of the valve block of embodiment two present invention.
Detailed description of the invention
Embodiment one:
Shown in Figure 2, a kind of noise reduction valve plate of the present invention, this valve block 1 have three can elastics wing blade 11,
Three ribs radially arranged 12 and the mounting post 13 of a middle top surface being located at valve block 1；Three blades of this valve block 1
11 is circumferentially distributed, is totally similar to circular configuration, and every two adjacent blades 11 are separated by rib 12 respectively；Each blade 11
Root be integrally connected with mounting post 13 respectively.
The mounting post 13 of above-mentioned valve block 1 is in similar triangular structure, and the bottom surface of valve block 1 is provided with one and leads to its mounting post 13
Internal installing hole 16(is as shown in Figure 5).The inner end of each rib 12 of valve block 1 respectively with the side one of this mounting post 13
Body connects.It is that say can also be in other positions of mounting post 13 that this mounting post 13 at least end face is provided with some air drain 15(" at least "
Putting, such as side arranges air drain), specifically the air drain 15 of this mounting post 13 end face has six (quantity of certain air drain 15 is not
It is confined to six), different in size, area of section is also not quite similar, and these six air drains 15 divide along the radial direction of mounting post 13 respectively
Cloth, wherein three air drains are arranged along the direction of three angles of mounting post 13, and its excess-three bar air drain is respectively along being perpendicular to
The direction on three limits of mounting post 13 is arranged.Opening, the i.e. two ends of these six air drains 15 divide respectively at these six air drain 15 two ends
Do not close, the gas channel formed, and make the inner end of each air drain be interconnected respectively.
Preferred as one, above-mentioned each blade 11 is respectively equipped with a buffer structure for the outer end being connected with rib 12,
Here, buffer structure is breach 14 of stepping down, and provides deformation cushion space for extruding the assembling of each blade 11.
A kind of air pump of the present invention, this air pump is provided with noise reduction valve plate 1 as above, and this valve block 1 is as the list of giving vent to anger of air pump
It is matched with in air pump to valve.
Specifically, as shown in Figure 3, Figure 4, above-mentioned air pump also includes having the upper cover 2 of exhaustor 21 and air inlet pipe 22, air chamber
4, three breather check valves 3, there is the piston 5 of three air bags 51, cylinder 6, base 10, linkage and motor 101；
Have one for installing the receiving chamber 41 of above-mentioned valve block 1 in the middle part of air chamber 4, and there is at the bottom of the chamber in this receiving chamber 41 three and valve block
The venthole that each blade 11 of 1 is corresponding, above-mentioned valve block 1 is installed in this receiving chamber 41 (specifically this bottom surface, receiving chamber 41
Middle part is provided with an installation axle, and this installation axle is fixed in installing hole 16 grafting of valve block 1), and its each blade 11 is attached at respectively
Corresponding venthole, upper cover 2 and air chamber about 4 corresponding matching, and form inlet chamber spaced apart from each other between air chamber 4 and give vent to anger
Chamber, inlet chamber is connected with the air inlet pipe 22 of upper cover 2, outlet chamber and the exhaustor 21 of upper cover 2 and the receiving chamber of air chamber 4
41 are connected；The outer border of air chamber 4 be additionally provided with three groups be connected with inlet chamber and with the three of piston corresponding entering of air bag 51
Pore (air inlet often organized includes at least an air inlet, and in this embodiment, the air inlet often organized comprises six air inlets),
Each breather check valve 3 is in beveled structure, and is installed on air chamber 4, respectively organizes air inlet for unidirectional unlatching or closure air chamber 4；
Piston tip, cylinder 6, base 10 use screw to be fixed on air chamber 4 bottom successively, and each air bag 51 of piston 5 is set in gas
In cylinder 6, linkage and motor 101 are respectively arranged in base 10, and the drive shaft of motor 101 and linkage phase transmission
Connecting, linkage forms socket with the air bag 51 of piston 5 and coordinates；Each venthole of air chamber 4 and each group of air inlet respectively with
Each air bag 51 of piston 5 is corresponding, and i.e. each venthole of air chamber 4 and each group of air inlet are in the on state, respectively with corresponding
Piston airbag is connected.
Aforementioned link mechanism includes eccentric 9, draw point 8 and connecting rod rack 7, and said motor 101 is installed on the end of base 10
End, eccentric 9 is installed in base 10, and the drive shaft of motor 101 stretches in base 10, and with eccentric 9 Joint；
Eccentric 9 is connected with connecting rod rack 7 by draw point 8；Connecting rod rack 7 is provided with three through holes 71, this connecting rod rack 7
Each through hole 71 socket-connects one by one with each air bag 51 of piston 5 respectively and coordinates.
A kind of air pump of the present invention, after installing above-mentioned valve block 1, exports certain torque and angular velocity after the energising of its motor 101,
And drive eccentric 9 to rotate, then it is the straight of piston 5 by draw point 8, connecting rod rack 7 by the convert rotational motion of eccentric 9
Line moves back and forth, thus realizes air-breathing and the exhaust event of air pump, makes air pump export certain flow and pressure.At eccentric 9
During rotating a circle, three air bags 51 of piston 5 are respectively completed an air-breathing and exhaust event: the air bag 51 of piston 5
During air-breathing, gas arrives inlet chamber from the air inlet pipe 22 of upper cover 2, and makes breather check valve 34 occur elastic deformation to open gas
Three groups of air inlets of room 4, make gas enter in the air bag 51 of piston 5, then the air bag 51 of piston 5 changes from small to big, it is achieved inhale
Gas process.During each air bag 51 aerofluxus of piston 5, each breather check valve 3 resets and blocks three groups of air inlets of air chamber 4,
Gas acts on each blade 11 of valve block 1, makes each blade 11 of valve block 1 by gas pressure effect upwards elastic deformation
Open each venthole of air chamber 4, then gas enters and accommodates chamber 41, and flows to each gas of mounting post 13 end face of valve block 1
Groove 15；When gas flows through each air drain 15 of mounting post 13 end face of valve block, due to each air drain 15 cross-sectional area relatively
Little, and the length of each air drain is different in size, thus the flow velocity of gas can reduce, and it is dispersed into the little airflow of different in flow rate, make
Pneumatic noise is minimized, even if also the noise of air pump is minimized.Finally, each little airflow is from exhaustor 21 row of upper cover 2
Go out, and input corresponding Pneumatic actuator.During Gai, the air bag 51 of piston 5 from large to small, completes exhaust process.
A kind of air pump of the present invention, after it uses above-mentioned valve block 1, due to this valve block 1 each blade 11 and rib 12 it
Between there is breach 14 of stepping down, thus, when this valve block 1 assembles, each blade 11 the most all will not occur assemble squeeze
After compressive strain, that is the assembling of each blade 11, arching phenomenon will not occur, each blade 11 still can adhere well to gas
Each venthole of room 4, it is ensured that the air-tightness of air pump is unaffected.This is because the breach 14 of stepping down at each blade 11 two ends
Provide the Free up Memory (or relatively cushion space) of a deformation for blade 11, make blade 11 there is no the possibility of crimp.
A kind of air pump of the present invention, its structure is not limited to above-described embodiment, and such as, the number of its piston airbag 51 is not limited to
In three, i.e. the number of its piston airbag 51 can also be two or four etc.；It is except can be from the air inlet pipe of upper cover 2
Outside 22 air inlets, it is also possible to use other air intake structure, such as from the gap air inlet between base 10 and cylinder 6.
Embodiment two:
Shown in Figure 5, a kind of noise reduction valve plate of the present invention, it is with the difference of embodiment one: this valve block 1 slow
Rushing structure is thin film 15, between two ends and the corresponding rib 12 of each blade 11 circumference that this thin film 15 is connected to valve block 1.
A kind of noise reduction valve plate of the present invention, it uses thin film 15 as buffer structure, except having above-mentioned advantage, is blade
Outside 11 cushion spaces that assembling crimp is provided, also have another advantage that the intensity that can strengthen each blade 11, improve
Gas pump performance.
This valve block described in embodiment two can be applied equally in air pump.
A kind of noise reduction valve plate of the present invention, its buffer structure is not limited to above two embodiment, that is, every effect with
Other structure that the buffer structure of the present invention is identical, each falls within protection scope of the present invention；The structure of its valve block is not limited to
Stating embodiment, such as, the number of the blade of valve block is not limited to 3, and the shape that each blade of valve block surrounds is also not limited to
Circular, it is also possible to be sector etc.；The peripheral border of valve block can also connect ring segment structure by rib, and (this ring segment structure can
To design the unidirectional blade of air inlet further), but with or without arranging ring segment structure, as long as this valve block have above-mentioned blade,
Rib and buffer structure, each fall within protection scope of the present invention.
Above-described embodiment is only used for further illustrating a kind of noise reduction valve plate and the air pump of the present invention, but the invention is not limited in reality
Execute example, every any simple modification, equivalent variations and modification above example made according to the technical spirit of the present invention, all
Fall in the protection domain of technical solution of the present invention.
Claims (9)
1. a noise reduction valve plate, this valve block have at least two can the blade of elastics wing, this valve block also has at least
One mounting post, the root of each blade is connected with mounting post respectively；It is characterized in that: this mounting post at least end face is provided with
Some air drains for diffusing air current；
Separated by the rib radially arranged between each blade of described valve block, the inner end of rib and the side one of mounting post
Body connects；Each blade is respectively equipped with a buffer structure for the end being connected with rib, and the assembling extruding to each blade carries
For deformation cushion space.
Noise reduction valve plate the most according to claim 1, it is characterised in that: described each air drain is respectively along described mounting post
Radial direction arrange, described at least two blades are respectively provided with at least one air drain and correspond.
Noise reduction valve plate the most according to claim 1 and 2, it is characterised in that: the two ends of described each air drain are opened respectively
Mouthful.
Noise reduction valve plate the most according to claim 1, it is characterised in that: described buffer structure is breach of stepping down.
Noise reduction valve plate the most according to claim 1, it is characterised in that: described buffer structure is thin film.
Noise reduction valve plate the most according to claim 1, it is characterised in that: the quantity of described blade and rib is respectively
Three, described each blade circumferentially distributed along described valve block respectively.
7. an air pump, it is characterised in that: this air pump is installed just like the noise reduction according to any one of claim 1-6
Valve block, this noise reduction valve plate is matched with in air pump as the outgassing nonreturn valve of air pump.
Air pump the most according to claim 7, it is characterised in that: described air pump also includes having exhaustor and enter
The upper cover of trachea, air chamber, at least two breather check valves, there is the piston of at least two air bags, cylinder, base, connecting rod
Mechanism and motor；Have one for installing the receiving chamber of described valve block in the middle part of air chamber, and have at the bottom of the chamber in this receiving chamber to
Few two ventholes corresponding with each blade of described valve block, described valve block is installed on this receiving chamber by its mounting post
In, and its each blade is attached at the venthole of correspondence, upper cover and the upper and lower corresponding matching of air chamber, and shape between air chamber respectively
Inlet chamber spaced apart from each other and outlet chamber, inlet chamber is become to be connected with the air inlet pipe of upper cover, outlet chamber and the aerofluxus of upper cover
The receiving chamber of pipe and air chamber is connected；The outer border of air chamber is additionally provided with the air inlet that at least two groups are connected with inlet chamber,
And the air inlet respectively organized comprises at least one air inlet respectively；Each breather check valve is installed on air chamber, for unidirectional unlatching
Or closure air chamber respectively organize air inlet；Piston tip, cylinder, base are in turn secured to air chamber bottom, each gas of piston
Cuff is loaded in cylinder, and linkage and motor are respectively arranged in base, and the drive shaft of motor passes on from one to another with linkage
Being dynamically connected, linkage becomes socket to coordinate with the balloon-shaped of piston；Each venthole of air chamber and each group of air inlet respectively with
Each air bag one_to_one corresponding of piston.
Air pump the most according to claim 8, it is characterised in that: described linkage includes eccentric, draw point
And connecting rod rack, described motor is installed on the bottom of described base, and eccentric is installed in described base, described motor
Drive shaft stretch in described base, and with eccentric Joint；Eccentric is connected with connecting rod rack by draw point；
Connecting rod rack is provided with at least two through hole, at least two through hole of this connecting rod rack respectively with at least two air bag phases of described piston
Socket coordinates；Described breather check valve is beveled structure.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512134.7A CN103671035B (en) | 2013-10-25 | 2013-10-25 | A kind of noise reduction valve plate and air pump |
| JP2015560544A JP6045724B2 (en) | 2013-10-25 | 2014-10-24 | Valve plate and air pump having the same |
| EP14855232.6A EP3093492B1 (en) | 2013-10-25 | 2014-10-24 | Valve clack and air pump having same |
| PCT/CN2014/089475 WO2015058717A1 (en) | 2013-10-25 | 2014-10-24 | Valve plate and air pump having same |
| US15/031,909 US10415564B2 (en) | 2013-10-25 | 2014-10-24 | Valve clack and air pump having same |
| US14/775,311 US10267307B2 (en) | 2013-10-25 | 2014-10-27 | Valve clack and air pump having same |
| EP14855806.7A EP3061971B1 (en) | 2013-10-25 | 2014-10-27 | Valve plate and air pump provided with same |
| JP2015560545A JP6053967B2 (en) | 2013-10-25 | 2014-10-27 | Valve plate and air pump having the same |
| PCT/CN2014/089585 WO2015058728A1 (en) | 2013-10-25 | 2014-10-27 | Valve plate and air pump provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512134.7A CN103671035B (en) | 2013-10-25 | 2013-10-25 | A kind of noise reduction valve plate and air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671035A CN103671035A (en) | 2014-03-26 |
| CN103671035B true CN103671035B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310512134.7A Active CN103671035B (en) | 2013-10-25 | 2013-10-25 | A kind of noise reduction valve plate and air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671035B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015058717A1 (en) * | 2013-10-25 | 2015-04-30 | 厦门科际精密器材有限公司 | Valve plate and air pump having same |
| CN109386458B (en) * | 2017-08-02 | 2024-08-23 | 厦门科际精密器材有限公司 | Air pump |
| CN111810388B (en) * | 2020-08-11 | 2025-08-29 | 深圳市龙壹科技有限公司 | Micro vacuum air pump |
| CN113482885A (en) * | 2021-07-27 | 2021-10-08 | 胡小林 | Valve for piston compressor |
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| US5289847A (en) * | 1992-11-23 | 1994-03-01 | Dresser-Rand Company | Plate-type valve for a pressured-fluid machine, and a valving plate assembly therefor |
| CN202718845U (en) * | 2012-08-10 | 2013-02-06 | 厦门科际精密器材有限公司 | Low vibration micropump |
| CN102926976A (en) * | 2012-09-17 | 2013-02-13 | 厦门科际精密器材有限公司 | Micropump being easy to assemble |
| CN202789442U (en) * | 2012-09-17 | 2013-03-13 | 厦门科际精密器材有限公司 | Easily-assembled micro pump |
| CN203023011U (en) * | 2013-01-29 | 2013-06-26 | 宁波博技机械有限公司 | Valve plate of multi-cylinder double-row refrigeration compressor |
| CN203239517U (en) * | 2013-03-11 | 2013-10-16 | 厦门科际精密器材有限公司 | Micro air pump |
| CN203627154U (en) * | 2013-10-25 | 2014-06-04 | 厦门科际精密器材有限公司 | Noise reduction valve plate and air pump |
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2013
- 2013-10-25 CN CN201310512134.7A patent/CN103671035B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5289847A (en) * | 1992-11-23 | 1994-03-01 | Dresser-Rand Company | Plate-type valve for a pressured-fluid machine, and a valving plate assembly therefor |
| CN202718845U (en) * | 2012-08-10 | 2013-02-06 | 厦门科际精密器材有限公司 | Low vibration micropump |
| CN102926976A (en) * | 2012-09-17 | 2013-02-13 | 厦门科际精密器材有限公司 | Micropump being easy to assemble |
| CN202789442U (en) * | 2012-09-17 | 2013-03-13 | 厦门科际精密器材有限公司 | Easily-assembled micro pump |
| CN203023011U (en) * | 2013-01-29 | 2013-06-26 | 宁波博技机械有限公司 | Valve plate of multi-cylinder double-row refrigeration compressor |
| CN203239517U (en) * | 2013-03-11 | 2013-10-16 | 厦门科际精密器材有限公司 | Micro air pump |
| CN203627154U (en) * | 2013-10-25 | 2014-06-04 | 厦门科际精密器材有限公司 | Noise reduction valve plate and air pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671035A (en) | 2014-03-26 |
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