CN108468637A - A kind of curtain bellowspump - Google Patents
A kind of curtain bellowspump Download PDFInfo
- Publication number
- CN108468637A CN108468637A CN201810112127.0A CN201810112127A CN108468637A CN 108468637 A CN108468637 A CN 108468637A CN 201810112127 A CN201810112127 A CN 201810112127A CN 108468637 A CN108468637 A CN 108468637A
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- CN
- China
- Prior art keywords
- curtain
- connecting rod
- pump
- bellows
- valve
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000005213 imbibition Methods 0.000 claims description 43
- 239000012530 fluid Substances 0.000 claims description 27
- 238000010079 rubber tapping Methods 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/084—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular member being deformed by stretching or distortion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of curtain bellowspumps.Pump case open side of the present invention is fixed at pump head one side, and working chamber is formed between pump case and pump head；Curtain bellows is fixed in working chamber, and curtain bellows open side is fixed at pump head side, and pump chamber is formed between pump head；The bottom of curtain bellows is fixedly installed flanged plate.One end of upper connecting rod and one end of lower connecting rod are separately positioned on pump head both ends, are axially arranged in the outer working chamber of pump chamber, the other end for being vertically connected with bar is fixed by screws on left flanged plate.The present invention is several to hanging ring by being extended outward in the peak valley position of curtain bellows axial direction, hanging ring hang in connecting rod and can sliding axially along connecting rod, realize the radial constraint of bellows, improve bellows pressure resistance and ability of anti-deformation.The movement of a pair of of curtain bellows is linked by being vertically connected with bar, realizes the function of curtain bellowspump uninterrupted pumping liquid to be transferred.
Description
Technical field
The invention belongs to bellowspump technical fields, are related to a kind of curtain bellowspump.
Background technology
Existing bellowspump changes the volume of pump chamber using the stretching of bellows, to realize the pump of liquid with contraction
Send transport；Live load is larger and is also easiest to the component of damage as bellows.In bellows telescopic process its side due to
The asymmetry that operating pressure and bellows itself are processed will produce indent deformation, while adjoint stress concentration phenomenon, these
All accelerate the damage of bellows.
It is mostly at present to be to increase the service life of bellows as disclosed in document CN105971860A and CN103477074A
Bellows is improved by changing bellows form, increasing bellows sidewall thickness or increasing reinforcing ring in the middle part of bellows
Pressure-resistant performance, to inhibit it to generate bad deformation.If improving intensity such as above-mentioned increase bellows wall thickness, it can increase and stretch
The resistance of contracting bellows, to influence the efficiency of pump；Or increase reinforcing ring among bellows as above-mentioned, then it can increase wave
The manufacturing cost of line pipe can also increase the axial dimension of bellows, to increase the size of whole pump.Therefore the present invention proposes
The New type corrugated tube pump that a kind of resistance to pressure is high and whole pump size is small.
Invention content
It is an object of the invention to provide a kind of curtain bellowspumps.
The present invention includes pump head, pump case, curtain bellows, flanged plate, tapping valve, liquid sucting valve and connecting rod；Its feature exists
In：The pump case is fixed at pump head one side, and working chamber is formed between pump case and pump head；Curtain bellows is fixedly installed
In working chamber, it is fixed at pump head side, forms pump chamber between pump head；The bottom of curtain bellows is configured with flange
Plate；Upper connecting rod is arranged outside pump chamber with lower connecting rod in working chamber, and one end of upper connecting rod and one end of lower connecting rod are distinguished
, can axially movable across pump head, the other end for being vertically connected with bar is fixed on flanged plate；Pump case bottom setting working fluid enters
Mouthful；
The pump head central axes are provided with the imbibition runner and drain runner of transfering fluid, imbibition runner and drain runner
Middle part separates；Imbibition flow channel entry point is as liquid sucting port, and drain runner exit is as leakage fluid dram；Imbibition is set at the top of imbibition runner
Tapping valve is arranged in valve, drain runner bottom；It is connect at the top of imbibition valve inlet and imbibition runner, imbibition valve outlet is placed in pump chamber；
Drain valve inlet is placed in pump chamber, and drain valve outlet is connect with drain runner bottom；One end of upper connecting rod and lower connecting rod
One end is each passed through pump head, non-interference with imbibition runner and drain flow channel space, can be vertically connected with bar and pump axially movable
The sealing of head junction；Tapping valve, liquid sucting valve are check valve；
The curtain bellows side wall periodically bends waviness or zigzag, waveform or zigzag top in an axial direction
Portion is wave crest, and bottom is trough；In curtain ripple pipe outer wall and it is vertically connected with bar relative position, is fixedly installed up and down at wave crest
Hanging ring；Upper lower lift ring is hung on upper connecting rod and lower connecting rod, can vertically connecting rod slide axially.
The present invention can also be including pump head, left and right pump case, left and right curtain bellows, left and right flanged plate, left and right tapping valve,
Left and right liquid sucting valve and connecting rod；It is characterized in that：The left and right pump case is fixed at pump head two sides, left and right pump case and pump
Left and right working chamber is formed between head；Left and right curtain bellows is respectively fixedly disposed in the working chamber of left and right, left and right curtain bellows
Pump head two sides are respectively fixedly disposed at, shape or so is at pump chamber between pump head；The bottom of left and right curtain bellows is configured with a left side
Right flanged plate；It is vertically connected with bar to be axially arranged in the outer left and right working chamber of left and right pump chamber, one end of upper connecting rod and lower connection
One end of bar is fixed by screws in respectively on left flanged plate, and the other end for being vertically connected with bar is separately fixed on right flanged plate；
Left and right Working-fluid intaking is arranged in left and right pump case bottom；
The pump head central axes are provided with the imbibition runner and drain runner of transfering fluid, imbibition runner and drain runner
Middle part separates；Imbibition flow channel entry point is as liquid sucting port, and drain runner exit is as leakage fluid dram；Setting left and right is inhaled at the top of imbibition runner
Left and right tapping valve is arranged in liquid valve, drain runner bottom；It is connect at the top of left and right imbibition valve inlet and imbibition runner, left and right liquid sucting valve goes out
Mouth is respectively placed in the pump chamber of left and right；Left and right drain valve inlet is respectively placed in pump chamber, left and right drain valve outlet and drain runner bottom
Portion connects；It is vertically connected with bar and passes axially through pump head, it is non-interference with imbibition runner and drain flow channel space；It can transport in an axial direction
It is dynamic, it is vertically connected with bar and is sealed with pump head junction；Tapping valve, liquid sucting valve are check valve；
The left and right curtain bellows side wall periodically bends waviness or zigzag, waveform or sawtooth in an axial direction
It is wave crest at the top of shape, bottom is trough；Curtain bellows side wall and it is vertically connected with bar relative position in left and right, it is symmetrical at wave crest
Lower lift ring in fixed setting；Upper lower lift ring is hung on upper connecting rod and lower connecting rod, is capable of the axial direction of vertically connecting rod
Sliding.
The connecting rod at least has upper and lower two.
The upper lower lift ring is provided with multipair, and uniformly set is connected to and is vertically connected on bar.
Preferably, the curtain bellows, pump case are side bottomed cylindrical.
Preferably, the upper connecting rod, lower connecting rod and pump head junction are sealed by elastic seal ring.
Preferably, being provided with reversal valve between the left and right pump case bottom Working-fluid intaking.
Preferably, selecting in Working-fluid intaking input service fluid or being stretched with push-down actuating structure driving bellows
Contracting.
The hanging ring is integrally formed with curtain bellows.
Present invention employs the curtain bellowss for having hanging ring, are not increasing axial dimension and working resistance, are not reducing
In the case of the working efficiency of curtain bellowspump, there is excellent pressure resistance and anti-deformation, greatly improve bellowspump
The service life of easily worn part.The movement of a pair of of curtain bellows is linked by being vertically connected with bar, when the curtain of one end
When bellows is driven by working fluid and is shunk, the curtain bellows elongation of the other end.A pair of of curtain bellows alternating
Ground carries out stretching motion, the final function of realizing curtain bellowspump uninterrupted pumping liquid to be transferred.
Description of the drawings
Fig. 1 is the overhead sectional view of the embodiment of the present invention；
Fig. 2 is the elevational cross-sectional view of the embodiment of the present invention；
Fig. 3 is a kind of sectional view of curtain bellows in the embodiment of the present invention；
Fig. 4 is the sectional view of another curtain bellows in the embodiment of the present invention.
Specific implementation mode
As illustrated in fig. 1 and 2, the present embodiment is by taking duplex pump as an example, a kind of curtain bellowspump, including pump head 1, pump case 2a
(2b), curtain bellows 3a (3b), flanged plate 4a (4b), tapping valve 5a (5b), liquid sucting valve 6a (6b) and connecting rod 7a (7b).Row
Liquid valve, liquid sucting valve are check valve.
Pump head 1 is configured at the center of curtain bellowspump, a pair of of left pump case 2a and right pump case 2b of side bottomed cylindrical with
The opposite mode of open side is respectively fixedly disposed at 1 both sides of pump head, and left work is formed between left pump case 2a, right pump case 2b and pump head 1
Make chamber 9a and right working chamber 9b, left curtain bellows 3a and right curtain bellows 3b are respectively fixedly disposed at left working chamber 9a and the right side
In working chamber 9b.
Left curtain bellows 3a and right curtain bellows 3b is side bottomed cylindrical, by be open it is opposite in a manner of fix and set
It sets in 1 both sides of pump head, forms left pump chamber 8a and right pump chamber 8b between pump head 1, the bottom of left and right curtain bellows is fixed respectively
It is provided with left flanged plate 4a and right flanged plate 4b.Pump head 1 is passed through in the middle part of upper connecting rod 7a and lower connecting rod 7b, is axially arranged on
Outside left pump chamber 8a and right pump chamber 8b, in left working chamber 9a and right working chamber 9b, the both ends for being vertically connected with bar are fixed by screw 12
On left flanged plate 4a and right flanged plate 4b.Elastic seal ring is arranged in upper connecting rod 7a, lower connecting rod 7b and 1 junction of pump head
15 so that between being still maintained in left working chamber 9a and right working chamber 9b when being vertically connected with bar and occurring mobile relative to pump head 1
It is sealed against one another.
1 central axes of pump head are provided with the imbibition runner and drain runner of transfering fluid, imbibition runner and drain runner middle part
Partition；Imbibition flow channel entry point is as liquid sucting port 16, and drain runner exit is as leakage fluid dram 17.Left imbibition is set at the top of imbibition runner
Left tapping valve 5a and right tapping valve 5b is arranged in valve 6a and right liquid sucting valve 6b, drain runner bottom.Left and right imbibition valve inlet and imbibition
Connection, left and right imbibition valve outlet are respectively placed in left pump chamber 8a and right pump chamber 8b at the top of runner；Left and right drain valve inlet is set respectively
In in left pump chamber 8a and right pump chamber 8b, drain valve outlet in left and right is connect with drain runner bottom.
It is vertically connected with bar and passes axially through pump head 1, it is non-interference with imbibition runner and drain flow channel space, and will be described
The movement linkage of a pair of of curtain bellows is got up.When the curtain bellows of one end is driven by working fluid and is shunk,
The curtain bellows of the other end extends.A pair of of curtain bellows is alternately carried out stretching motion, final to realize curtain bellowspump
The function of uninterrupted pumping liquid to be transferred.The quantity of connecting rod is not fixed, at least has 2 up and down, it is expected that being arranged multiple
When connecting rod, the symmetrical pump head of connecting rod is arranged around curtain bellows, but it's not necessary.
Left and right Working-fluid intaking is arranged in left and right pump case bottom, using gas as the work in working fluid source in the present embodiment
Fluid.Reversal valve 18 is set between left and right pump case bottom or so Working-fluid intaking, controls reversal valve 18 as needed by compressed gas
The flowing whereabouts of body switches between left working chamber 9a and right working chamber 9b.
Illustrate the construction of the curtain bellows by taking left curtain bellows 3a as an example：
As shown in figure 3, its side periodically bends waviness or zigzag in an axial direction, make a reservation for respectively in described axial
Position integrally extends outward several hanging rings 10, and hanging ring 10 hangs on upper connecting rod 7a and lower connecting rod 7b, vertically connects
The axially free sliding of extension bar forms hanging ring-guide rod structure of similar curtain.Hanging ring is integrally formed with curtain bellows.
As shown in figure 4, curtain bellows can be evenly spaced apart to configure multipair hanging ring in centre position.Multipair hanging ring covers
It is connected in connecting rod, is conducive to further suppress the bad deformation of radial direction occurred when bellows stretches.
Operation principle is as follows：When compressed air stream working chamber to the left, the pressure in left working chamber rises, and pressure acts on
Left pump chamber pushes the left left flanged plate in pump chamber bottom to be moved to pump head, and left curtain bellows shortens；Pressure in left pump chamber rises,
And then left liquid sucting valve is made to close, left tapping valve is opened, and liquid to be transferred is discharged by left tapping valve from leakage fluid dram from left pump chamber.
On the other hand, left and right curtain bellows is linked together due to being vertically connected with bar, right curtain bellows is made to extend, so as to cause
Pressure in right pump chamber declines, and then right liquid sucting valve is made to open, and right tapping valve is closed, and liquid to be transferred is by liquid sucting valve from suction
Liquid mouth imports right pump chamber.As above-mentioned, the flow direction of compressed air is cut between the working chamber of left and right using reversal valve
It changes so that left and right curtain bellows alternately and repeatedly stretches, and realizes that pump chamber continuously imbibition in left and right is acted with drain.It should refer to
Go out, the use of compressed air stream filling working chamber is a kind of mode for driving curtain bellows flexible, work is filled using liquid flow
Make chamber, or the push-down actuating structure driven using external action source can also drive bellows flexible.
According to the construction of curtain bellows, when curtain bellows is flexible, the hanging ring of curtain bellows is hung with similar curtain
Along the axial of connecting rod opposite sliding occurs for the mode of ring, since connecting rod limits moving radially for curtain ripple pipe pendant,
Therefore the bad deformation of radial direction of curtain bellows is inhibited, and is conducive to the service life for improving curtain bellows.On the other hand, curtain
Bellows does not increase the working resistance and axial dimension of bellows relative to the hanging ring structure that common bellows introduces, and does not reduce
The working efficiency of curtain bellowspump.
Claims (9)
1. a kind of curtain bellowspump, including pump head, pump case, curtain bellows, flanged plate, tapping valve, liquid sucting valve and connecting rod；
It is characterized in that：The pump case is fixed at pump head one side, and working chamber is formed between pump case and pump head；Curtain bellows
It is fixed in working chamber, is fixed at pump head side, forms pump chamber between pump head；The bottom of curtain bellows configures
There is flanged plate；Upper connecting rod is arranged outside pump chamber with lower connecting rod in working chamber, one end of upper connecting rod and the one of lower connecting rod
End is each passed through pump head, can axially movable, and the other end for being vertically connected with bar is fixed on flanged plate；Work is arranged in pump case bottom
Fluid inlet；
The pump head central axes are provided with the imbibition runner and drain runner of transfering fluid, imbibition runner and drain runner middle part
Partition；Imbibition flow channel entry point is as liquid sucting port, and drain runner exit is as leakage fluid dram；Liquid sucting valve, row are set at the top of imbibition runner
Tapping valve is arranged in liquid stream road bottom；It is connect at the top of imbibition valve inlet and imbibition runner, imbibition valve outlet is placed in pump chamber；Tapping valve
Entrance is placed in pump chamber, and drain valve outlet is connect with drain runner bottom；One end of upper connecting rod and one end of lower connecting rod point
Not Chuan Guo pump head, it is non-interference with imbibition runner and drain flow channel space, can be vertically connected with bar axially movable and be connect with pump head
Place's sealing；Tapping valve, liquid sucting valve are check valve；
The curtain bellows side wall periodically bends waviness or zigzag in an axial direction, is at the top of waveform or zigzag
Wave crest, bottom are trough；In curtain ripple pipe outer wall and it is vertically connected with bar relative position, is fixedly installed at wave crest and hangs up and down
Ring；Upper lower lift ring is hung on upper connecting rod and lower connecting rod, can vertically connecting rod slide axially.
2. a kind of curtain bellowspump, including pump head, left and right pump case, left and right curtain bellows, left and right flanged plate, left and right drain
Valve, left and right liquid sucting valve and connecting rod；It is characterized in that：The left and right pump case is fixed at pump head two sides, left and right pump case
Left and right working chamber is formed between pump head；Left and right curtain bellows is respectively fixedly disposed in the working chamber of left and right, left and right curtain wave
Line pipe is respectively fixedly disposed at pump head two sides, and shape or so is at pump chamber between pump head；The bottom of left and right curtain bellows configures
There is left and right flanged plate；It is vertically connected with bar to be axially arranged in the outer left and right working chamber of left and right pump chamber, one end of upper connecting rod is under
One end of connecting rod is fixed by screws in respectively on left flanged plate, and the other end for being vertically connected with bar is separately fixed at right flanged plate
On；Left and right Working-fluid intaking is arranged in left and right pump case bottom；
The pump head central axes are provided with the imbibition runner and drain runner of transfering fluid, imbibition runner and drain runner middle part
Partition；Imbibition flow channel entry point is as liquid sucting port, and drain runner exit is as leakage fluid dram；Left and right imbibition is set at the top of imbibition runner
Left and right tapping valve is arranged in valve, drain runner bottom；It is connect at the top of left and right imbibition valve inlet and imbibition runner, left and right imbibition valve outlet
It is respectively placed in the pump chamber of left and right；Left and right drain valve inlet is respectively placed in pump chamber, left and right drain valve outlet and drain runner bottom
Connection；It is vertically connected with bar and passes axially through pump head, it is non-interference with imbibition runner and drain flow channel space；Can axially movable,
Bar is vertically connected with to seal with pump head junction；Tapping valve, liquid sucting valve are check valve；
The left and right curtain bellows side wall periodically bends waviness or zigzag, waveform or zigzag top in an axial direction
Portion is wave crest, and bottom is trough；Curtain bellows side wall and it is vertically connected with bar relative position in left and right, is symmetrically fixed at wave crest
Lower lift ring in setting；Upper lower lift ring is hung on upper connecting rod and lower connecting rod, can vertically connecting rod slide axially.
3. a kind of curtain bellowspump as claimed in claim 1 or 2, it is characterised in that：The connecting rod at least has upper
Lower two.
4. a kind of curtain bellowspump as claimed in claim 1 or 2, it is characterised in that：The upper lower lift ring is provided with more
Right, uniformly set, which is connected to, is vertically connected on bar.
5. a kind of curtain bellowspump as claimed in claim 1 or 2, it is characterised in that：The curtain bellows, pump case are equal
For side bottomed cylindrical.
6. a kind of curtain bellowspump as claimed in claim 1 or 2, it is characterised in that：The upper connecting rod, lower connecting rod
It is sealed by elastic seal ring with pump head junction.
7. a kind of curtain bellowspump as claimed in claim 2, it is characterised in that：The left and right pump case bottom working fluid
Reversal valve is provided between entrance.
8. a kind of curtain bellowspump as claimed in claim 1 or 2, it is characterised in that：It selects and is inputted in Working-fluid intaking
Working fluid is flexible with push-down actuating structure driving bellows.
9. a kind of curtain bellowspump as claimed in claim 1 or 2, it is characterised in that：The hanging ring and curtain bellows
It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810112127.0A CN108468637B (en) | 2018-02-05 | 2018-02-05 | Curtain type corrugated pipe pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810112127.0A CN108468637B (en) | 2018-02-05 | 2018-02-05 | Curtain type corrugated pipe pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108468637A true CN108468637A (en) | 2018-08-31 |
| CN108468637B CN108468637B (en) | 2023-12-08 |
Family
ID=63266079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810112127.0A Active CN108468637B (en) | 2018-02-05 | 2018-02-05 | Curtain type corrugated pipe pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108468637B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294204A (en) * | 2021-12-29 | 2022-04-08 | 上海至纯精密制造有限公司 | Multi-phase electric air sac pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091970U (en) * | 1991-01-21 | 1992-01-01 | 曹吉祥 | Corrugated pipe pump with convex ring |
| EP0879961A1 (en) * | 1997-05-23 | 1998-11-25 | Kremlin | Reciprocating piston pump with sealing bellows |
| JP2007315295A (en) * | 2006-05-25 | 2007-12-06 | Ckd Corp | Bellows type pump |
| CN102325999A (en) * | 2009-02-24 | 2012-01-18 | 日本皮拉工业株式会社 | Bellows pump |
| CN103477074A (en) * | 2011-03-30 | 2013-12-25 | 株式会社易威奇 | Bellows pump |
-
2018
- 2018-02-05 CN CN201810112127.0A patent/CN108468637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2091970U (en) * | 1991-01-21 | 1992-01-01 | 曹吉祥 | Corrugated pipe pump with convex ring |
| EP0879961A1 (en) * | 1997-05-23 | 1998-11-25 | Kremlin | Reciprocating piston pump with sealing bellows |
| JP2007315295A (en) * | 2006-05-25 | 2007-12-06 | Ckd Corp | Bellows type pump |
| CN102325999A (en) * | 2009-02-24 | 2012-01-18 | 日本皮拉工业株式会社 | Bellows pump |
| CN103477074A (en) * | 2011-03-30 | 2013-12-25 | 株式会社易威奇 | Bellows pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294204A (en) * | 2021-12-29 | 2022-04-08 | 上海至纯精密制造有限公司 | Multi-phase electric air sac pump |
| CN114294204B (en) * | 2021-12-29 | 2024-01-05 | 上海至纯洁净系统科技股份有限公司 | Multi-phase electric air bag pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108468637B (en) | 2023-12-08 |
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