CN102410182A - Controllable pneumatic double diaphragm pump - Google Patents
Controllable pneumatic double diaphragm pump Download PDFInfo
- Publication number
- CN102410182A CN102410182A CN2011103816268A CN201110381626A CN102410182A CN 102410182 A CN102410182 A CN 102410182A CN 2011103816268 A CN2011103816268 A CN 2011103816268A CN 201110381626 A CN201110381626 A CN 201110381626A CN 102410182 A CN102410182 A CN 102410182A
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- China
- Prior art keywords
- slide plate
- air cavity
- diaphragm pump
- right sides
- balance
- 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
- 230000004888 barrier function Effects 0.000 claims description 19
- 238000005303 weighing Methods 0.000 claims description 15
- 239000004579 marble Substances 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 6
- 230000004807 localization Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 2
- 230000003584 silencer Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 16
- 239000012528 membrane Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 4
- 208000002925 dental caries Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
The invention relates to a double diaphragm pump, in particular to a controllable pneumatic double diaphragm pump, aiming to solve the problems that the traditional double diaphragm pump is inaccurate in guide rod control, complicated in design, high in loss of parts and high in repair rate. In order to realize the aim of solving the problems in the traditional double diaphragm pump, the controllable pneumatic double diaphragm pump comprises a left air cavity chamber, a right air cavity chamber and a middle actuating device, wherein the left air cavity chamber and the right air cavity chamber are connected with an upper discharge tube and a lower feed tube; diaphragms are respectively arranged in the left air cavity chamber and the right air cavity chamber and are connected through a center slide bar; the actuating device comprises a balance adjustment device, an exhaust silencer and a balance admission pipe, wherein the balance adjustment device is connected with the balance admission pipe and the exhaust silencer; and inner side walls of the left air cavity chamber and the right air cavity chamber are provided with airflow holes for communication of the actuating device. From the technical scheme, the actuating device adopts the balance adjustment device, the exhaust silencer and the balance admission pipe instead of parts such as the guide rod and the like in the prior art.
Description
Technical field
The present invention relates to a kind of two diaphragm pump, specially refer to pneumatic pair of film diaphragm pump of a kind of controllable type.
Background technique
Membrane pump with pneumatic drive is a kind of novel conveying mechanism, is a kind of pump class of present latest domestic grain husk.Employing pressurized air is power source, for various corrosive liquids, and the liquid of band particle, high viscosity, volatile, inflammable, hypertoxic liquid all can be taken out light and exhaust.It has four kinds of materials membrane pump with pneumatic drive: engineering plastics, aluminum alloy, cast iron, stainless steel.Membrane pump with pneumatic drive adopts nitrile butadiene rubber, neoprene, fluorine rubber, teflon respectively, gathers four or six ethene according to liquid mediums.To satisfy the needs of different user.Be placed in various special occasions, be used for pumping the medium that kind of conventional pumps can not be aspirated, all obtained satisfied effect.Owing to be used as power,, be suitable for the fluid of medium-high viscosity so flow is initiatively reconciled with the variation of back pressure (resistance to flow output) with atmosphere.And the operation point of centrifugal pump thereby water to be benchmark configure, if be used for the high slightly fluid of viscosity, then necessary supporting speed reducer or variable-frequency governor, cost are just progressive greatly, for gear pump also be difference so.Reliable and cost is low with pneumatic pump in inflammable and explosive environment, like the conveying of fuel, gunpowder, explosive, because: the first, not all rightly after the ground connection can produce spark; The second, empty calory produces in the work, and machine can be not overheated; Three, fluid can be not overheated because the stirring of membrane pump with pneumatic drive convection cell is minimum.The abominable central authorities in the building site, as build the discharge of wastewater of building site, industrial and mineral, because the impurity in the sewage is many and composition is huge, and pipeline is easy to infraction, like this electric pump is just formed the too high environment of load, the motor feels hot rapid wear.Membrane pump with pneumatic drive can be adjustable through particle and flow, initiatively prevents to sluggishness during the pipeline infraction.Other pneumatic diaphragm pump volume is easy to move for a short time, unnecessary ground, and occupation of land face is minimum, settles easy economy.Can be used as and move the formula material-handling pump.In the material that harmfulness, corruption property are arranged was handled, diaphragm pump can leave the material and the external world separated fully.Or assure and do not have the contaminating impurity raw material in some experiments.Can be used for carrying the more unsteady fluid of chemical temper, as: sensitive material, flocculation liquid etc.This is because the shearing force of diaphragm pump is low, and is little to the physical influence of material, because membrane pump with pneumatic drive has above characteristics, so membrane pump with pneumatic drive has just progressively been invaded the market of other pumps since being born, and occupies a part wherein in the world.As: spray paint, membrane pump with pneumatic drive has occupied absolute leading position in the ceramics, and in other some industries,, and have the irreplaceable status of other pumps as the market share that is enlarging it in environmental protection, waste water treatment, building, blowdown, the fine chemistry industry.
But the guide rod control problem inaccuracy of existing diaphragm pump, and complex design, the parts loss is high, the problem that anti-revisionist rate is high.
Summary of the invention
The present invention is for solving the deficiency of technology in the past; Providing a kind of controllable type pneumatic pair of film diaphragm pump, mainly is to solve the guide rod control problem inaccuracy of two diaphragm pump in the past, and complex design; The parts loss is high; The problem that anti-revisionist rate is high, this patent have thoroughly been broken away from the principle that the combination of using guide rod and air pressure in the technology in the past promotes barrier film, and this patent power only utilizes the ventilation change of air pressure can accomplish the function of entire product.
For accomplishing the foregoing invention purpose, the present invention is achieved in that pneumatic pair of film diaphragm pump of a kind of controllable type, and it is that left and right sides gas chamber constitutes with middle drive unit; Described left and right sides air cavity can be connected with following supply pipe by the top discharge pipe; Be provided with barrier film in the air cavity of the described left and right sides, connect through the center slide bar; It is characterized in that: said drive unit is to be made up of balance regulator, air exhaust muffler device, balance suction tude, and described balance regulator connects balance suction tude and venting gas appliance; The madial wall of described left and right sides gas chamber has airflow hole, the communicating of drive unit.Visible from above-mentioned technological scheme, this drive unit is by balance regulator, air exhaust muffler device, balance suction tude, and does not have to adopt the parts of some guide rods and so in the past.
Technique scheme is done further to improve: described balance regulator is perpendicular to left and right sides air cavity; Be placed between the air cavity of the left and right sides, described balance regulator is to be made up of enclosing cover, seal ring, active slide plate, isolation pad, driven slide plate and central shaft location card; Described central shaft location card and two slide plates and a middle pad through holding down bolt from the centre with its neat installation; Above active slide plate, isolation pad and driven slide plate, open and all have lifting hole(eyelet), pass, be fixed on outer covering by the suspention axle.
Be provided with ball seat, marble, strong spring between described driven slide plate and housing, ball seat is installed in housing, and spring is placed on the ball seat, and marble are seated on the spring; The another side of marble is pushed down by driven slide plate; And on driven slide plate, be provided with the marble chute, between the lower end of the slide plate and first slide plate, establish
Described holding down bolt and central shaft location card; The two ends of described central slide bar are provided with boss, and the central shaft location card is stuck in the middle of two boss; This part is mainly used in and lets two back and forth slips when empty at ball seat of initiatively slide plate and driven slide plate; Prevent to swing the boundary.
Between described active slide plate and driven slide plate, be provided with a weighing apparatus pressing spring and press positioning block with weighing apparatus, described weighing apparatus presses positioning block to be installed in the weighing apparatus pressing spring, is installed on the weighing apparatus pressing spring and is blocked and squeeze in the localization frame of two slide plates.This part mainly plays balanced action for slide plate in driving air cavity; Can be not unbalance when swinging.
On described driven slide plate, also be provided with slide block; This slide block is installed in the slide block localization frame on the driven slide plate, and the relief opening with inlet hole chamber, the left and right sides and air exhaust muffler device said slide block is corresponding.This slide block is swinging into, the suction port that communicates with chamber, the left and right sides and with relief opening that silencing apparatus communicates on slidably reciprocate; Constantly vent moves on to right chamber vent from left chamber, and is middle through relief opening.Because slide block horizontally slips, and makes left and right sides chamber is inflated from external gas from mutual alternative, thereby the barrier film that promotes in the chamber of the left and right sides moves around; And then drain and inspiration liquid.
Technique scheme is done further refinement, and described left and right sides gas chamber is by enclosing cover, the cavity shell, and connecting bolt, outer pad, outer seal ring, barrier film, interior seal ring, internal gasket, pneumatic throw-out collar and inner cap constitute; Described cavity shell is clamped in middle by enclosing cover and inner cap; Described outer pad, outer seal ring, barrier film, interior seal ring, internal gasket are passed fixing by connecting bolt successively from the center; The top of connecting bolt is connected with the central slide bar.This scheme closely cooperates through barrier film and two chambers; Thereby stop liquid to infilter the other end of barrier film; And then the drive part of pump damaged; Utilize the central slide bar to connect in the gas chamber of the left and right sides, two mutual only upright barrier films are linked into an integrated entity.
Technique scheme is done further to improve, and the upper end of the left air cavity in the described right side connects the top discharge pipe through non-return valve, and the lower end of described left and right sides air cavity connects supply pipe down through non-return valve.
Technique scheme is done further to improve, and the upper end of air cavity is connected with barometer in the left and right sides.Pressure in two air cavitys carries out self-regulation, and setting pressure etc.
Technique scheme is done further to improve, be provided with pressure controlled valve at the outlet end of pneumatic pair of film diaphragm pump of controllable type.Control for the liquid outlet quantity of outlet through pressure controlled valve, because therefore this patent, only through liquid outlet quantity is controlled, just can let miscellaneous part regulate automatically according to this water-outlet quantity through the air pressure realization.
Technique scheme is done further to improve, and described cavity shell is made up of a C shape fastening piece and lock ring screw, and described C shape fastening piece passes through behind the lock ring screw lock ring by the shell clamping of enclosing cover and drive unit.Can conveniently adjust the seal degree of air cavity through the fastening piece of C shape, use long-time after, tend to occur the situation of leakage, can regulate at any time through C shape fastening piece, can not dismantle any other parts.
Description of drawings
Fig. 1 is the ssembly drawing of patent of the present invention.
Fig. 2 is an air cavity inner piece ssembly drawing.
Fig. 3 is the connection diagram of two air cavitys.
Fig. 4 is the packing figure of drive unit.
Embodiment
For more concrete and detailed explanation structure of the present invention, do further to set forth below in conjunction with accompanying drawing.
As shown in the figure, this patent integral body is divided into five parts, is respectively left air cavity 1, drive unit 2, right air cavity 3, top discharge pipe 4, supply pipe 5 down; The outside of said left air cavity 1 and right air cavity 3 again respectively with the material loading pipeline section one 51 of supply pipe; Left side air cavity 1 and right air cavity 3 separate 31 by barrier film, are divided into two chambers, one be liquid container half be air chamber; Described barrier film is passed by connecting bolt by outer pad 32, outer seal ring and interior seal ring, internal gasket 37 clampings.The structure of two chambers is identical; The position is relative; Two chambers are that the shell edge by enclosing cover 11, cavity shell and drive unit constitutes jointly, and described cavity shell is to be made up of C shape fastening piece 12 and lock ring screw 13; The shell edge of described enclosing cover 11, cavity shell and drive unit has constituted gas chamber jointly; Through tightening of C shape fastening piece and lock ring screw, formation is sealed and matched with barrier film.Barrier film in two gas chamber connects through the center slide-bar.
Its whole separated into two parts of the drive unit of described intermediate portion, front half part is a balance regulator; And later half part is exhaust silencer 21 and balance suction tude; Described balance regulator is perpendicular to left and right sides air cavity; Be placed between the air cavity of the left and right sides, described balance regulator is to be made up of enclosing cover 22, seal ring 23, active slide plate 24, isolation pad, driven slide plate 25 and central shaft location card 26; Described central shaft location card and two slide plates and a middle pad through holding down bolt 27 from the centre with its neat installation; Above active slide plate 24, isolation pad and driven slide plate 25, open and all have lifting hole(eyelet), pass, be fixed on outer covering by suspention axle 29; On described driven slide plate 25, also be provided with slide block 28; This slide block 28 is installed in the slide block localization frame on the driven slide plate; Relief opening 203 with inlet hole 201,202 chamber, the left and right sides and air exhaust muffler device said slide block is corresponding.
Be provided with ball seat, marble, strong spring between described driven slide plate and housing, ball seat is installed in housing, and spring is placed on the ball seat, and marble are seated on the spring; The another side of marble is pushed down by driven slide plate; And on driven slide plate, being provided with the marble chute, is to make convenient between two pores, the moving about of slide block in such its main purpose of marble of establishing between the lower end of slide block and driven slide plate, prevent to be lived by air pressure gas, and immotile state.
Between described active slide plate and driven slide plate, be provided with a weighing apparatus pressing spring and press positioning block with weighing apparatus, described weighing apparatus presses positioning block to be installed in the weighing apparatus pressing spring, is installed on the weighing apparatus pressing spring and is blocked and squeeze in the localization frame of two slide plates; Owing to adorn the gas that is in the drive unit, therefore, in sliding process, unbalance situation can occur; And added said structure, the balance that will become of the slip between the slide plate so.
Following supply pipe is to be connected with the material loading pipeline section of two air cavity one through ball valve; A chamber is opened owing to air inlet so therein; In the time of will liquid outwards being squeezed, the ball valve of this chamber lower end can be closed under pressure naturally, prevents liquid return; And another cavity is fitted the chance exhaust; Inspiration liquid, and its lower end ball valve should be in open mode; Let liquid get in the cavity, this moment, the ball valve of upper outlet was in closed condition.The function of drawing liquid and discharge opeing has alternately just been accomplished on both sides each other like this.
Claims (7)
1. pneumatic pair of film diaphragm pump of a controllable type, it is that left and right sides gas chamber constitutes with middle drive unit; Described left and right sides air cavity can be connected with following supply pipe by the top discharge pipe; Be provided with barrier film in the air cavity of the described left and right sides, connect through the center slide bar; It is characterized in that: said drive unit is to be made up of balance regulator, air exhaust muffler device, balance suction tude, and described balance regulator connects balance suction tude and venting gas appliance; The madial wall of described left and right sides gas chamber has airflow hole, the communicating of drive unit.
2. pneumatic pair of film diaphragm pump of a kind of controllable type according to claim 1; It is characterized in that: described balance regulator is perpendicular to left and right sides air cavity; Be placed between the air cavity of the left and right sides, described balance regulator is to be made up of enclosing cover, seal ring, active slide plate, isolation pad, driven slide plate and central shaft location card; Described central shaft location card and two slide plates and a middle pad through holding down bolt from the centre with its neat installation; Above active slide plate, isolation pad and driven slide plate, open and all have lifting hole(eyelet), pass, be fixed on outer covering by the suspention axle;
Be provided with ball seat, marble, strong spring between described driven slide plate and housing, ball seat is installed in housing, and spring is placed on the ball seat, and marble are seated on the spring; The another side of marble is pushed down by driven slide plate; And on driven slide plate, be provided with the marble chute, between the lower end of the slide plate and first slide plate, establish
Described holding down bolt and central shaft location card; The two ends of described central slide bar are provided with boss, and the central shaft location card is stuck in the middle of two boss;
Between described active slide plate and driven slide plate, be provided with a weighing apparatus pressing spring and press positioning block with weighing apparatus, described weighing apparatus presses positioning block to be installed in the weighing apparatus pressing spring, is installed on the weighing apparatus pressing spring and is blocked and squeeze in the localization frame of two slide plates;
On described driven slide plate, also be provided with slide block; This slide block is installed in the slide block localization frame on the driven slide plate;
Relief opening with inlet hole chamber, the left and right sides and air exhaust muffler device said slide block is corresponding.
3. pneumatic pair of film diaphragm pump of a kind of controllable type according to claim 1 is characterized in that: described left and right sides gas chamber is by enclosing cover, the cavity shell, and connecting bolt, outer pad, outer seal ring, barrier film, interior seal ring, internal gasket, pneumatic throw-out collar and inner cap constitute; Described cavity shell is clamped in middle by enclosing cover and inner cap; Described outer pad, outer seal ring, barrier film, interior seal ring, internal gasket are passed fixing by connecting bolt successively from the center; The top of connecting bolt is connected with the central slide bar.
4. pneumatic pair of film diaphragm pump of a kind of controllable type according to claim 1 is characterized in that: the upper end of the left air cavity in the described right side connects the top discharge pipe through non-return valve, and the lower end of described left and right sides air cavity connects supply pipe down through non-return valve.
5. pneumatic pair of film diaphragm pump of a kind of controllable type according to claim 1, it is characterized in that: the upper end of air cavity is connected with barometer in the left and right sides.
6. pneumatic pair of film diaphragm pump of a kind of controllable type according to claim 1 is characterized in that: the outlet end at pneumatic pair of film diaphragm pump of controllable type is provided with pressure controlled valve.
7. according to wanting profit to require pneumatic pair of film diaphragm pump of 3 described a kind of controllable types; It is characterized in that: described cavity shell is made up of a C shape fastening piece and lock ring screw, described C shape fastening piece through behind the lock ring screw lock ring by the shell clamping of enclosing cover and drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110381626.8A CN102410182B (en) | 2011-11-28 | 2011-11-28 | Controllable pneumatic double diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110381626.8A CN102410182B (en) | 2011-11-28 | 2011-11-28 | Controllable pneumatic double diaphragm pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102410182A true CN102410182A (en) | 2012-04-11 |
| CN102410182B CN102410182B (en) | 2014-03-19 |
Family
ID=45912458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110381626.8A Expired - Fee Related CN102410182B (en) | 2011-11-28 | 2011-11-28 | Controllable pneumatic double diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410182B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018192031A1 (en) * | 2017-04-22 | 2018-10-25 | 李金权 | Multifunctional sewage pump device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378122A (en) * | 1993-02-16 | 1995-01-03 | Wilden Pump & Engineering Co. | Air driven diaphragm pump |
| CN1099103A (en) * | 1993-07-20 | 1995-02-22 | 格雷科有限公司 | Double diaphragm pump with two-stage air valve |
| US5667368A (en) * | 1995-12-01 | 1997-09-16 | Pulsafeeder, Inc. | Diaphragm metering pump including improved leak detection diaphragm |
| CN1373293A (en) * | 2001-01-23 | 2002-10-09 | Yts股份有限公司 | Restarting device of crossover valve for pump |
| US6644941B1 (en) * | 2002-04-18 | 2003-11-11 | Ingersoll-Rand Company | Apparatus and method for reducing ice formation in gas-driven motors |
| CN101449060A (en) * | 2006-04-19 | 2009-06-03 | 威尔顿泵业工程公司 | Air driven pump with performance control |
| CN201786618U (en) * | 2010-09-30 | 2011-04-06 | 潘万桑 | Pneumatic type double-diaphragm pump |
| CN202746157U (en) * | 2011-11-28 | 2013-02-20 | 陈昌金 | Controllable type pneumatic double diaphragm pump |
-
2011
- 2011-11-28 CN CN201110381626.8A patent/CN102410182B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378122A (en) * | 1993-02-16 | 1995-01-03 | Wilden Pump & Engineering Co. | Air driven diaphragm pump |
| CN1099103A (en) * | 1993-07-20 | 1995-02-22 | 格雷科有限公司 | Double diaphragm pump with two-stage air valve |
| US5667368A (en) * | 1995-12-01 | 1997-09-16 | Pulsafeeder, Inc. | Diaphragm metering pump including improved leak detection diaphragm |
| CN1373293A (en) * | 2001-01-23 | 2002-10-09 | Yts股份有限公司 | Restarting device of crossover valve for pump |
| US6644941B1 (en) * | 2002-04-18 | 2003-11-11 | Ingersoll-Rand Company | Apparatus and method for reducing ice formation in gas-driven motors |
| CN101449060A (en) * | 2006-04-19 | 2009-06-03 | 威尔顿泵业工程公司 | Air driven pump with performance control |
| CN201786618U (en) * | 2010-09-30 | 2011-04-06 | 潘万桑 | Pneumatic type double-diaphragm pump |
| CN202746157U (en) * | 2011-11-28 | 2013-02-20 | 陈昌金 | Controllable type pneumatic double diaphragm pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018192031A1 (en) * | 2017-04-22 | 2018-10-25 | 李金权 | Multifunctional sewage pump device |
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| Publication number | Publication date |
|---|---|
| CN102410182B (en) | 2014-03-19 |
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Effective date of registration: 20140123 Address after: Taizhou City, Zhejiang province 318057 Pengjie town Luqiao District Peng District 5 Building No. 28 vibration Applicant after: Chen Changjin Address before: Taizhou City, Zhejiang province 318057 Pengjie town Luqiao District Peng District 5 Building No. 28 vibration Applicant before: Chen Changjin Applicant before: Jin Bangzhong |
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Granted publication date: 20140319 Termination date: 20161128 |