CN2723733Y - Two purpose pump for air extracting and pressurizing - Google Patents
Two purpose pump for air extracting and pressurizing Download PDFInfo
- Publication number
- CN2723733Y CN2723733Y CN 200420053151 CN200420053151U CN2723733Y CN 2723733 Y CN2723733 Y CN 2723733Y CN 200420053151 CN200420053151 CN 200420053151 CN 200420053151 U CN200420053151 U CN 200420053151U CN 2723733 Y CN2723733 Y CN 2723733Y
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- pump
- pump chamber
- air
- suction
- barrier film
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Abstract
The utility model relates to a two purpose pump for air extracting and pressurizing, belonging to a bellows pump with at least two pump chambers. An electric motor is arranged at the external side of the bottom of a casing whose upper end is open; the output shaft of the electric motor extends into the casing and is connected with an actuator capable of changing the rotatory movement of the electric motor output shaft into an up-and-down reciprocating movement of the drive end of every pump chamber; a diaphragm compression section is correspondingly connected with the upper end of the casing; the drive end of every pump chamber is respectively connected with the up-and-down reciprocating movement components of the actuator; an air accumulating part capable of unitedly transferring compressed gas to the outside through an air exhaust nozzle is fixed on the diaphragm compression section and comprises the air exhaust valves of every pump chamber; the inside of the air exhaust nozzle of the air accumulating part is provided with a constant staticizer; the air admission valves of every pump chamber of the diaphragm compression section are connected with the outside by an air suction part capable of unitedly sucking air from the outside by an air suction nozzle. The utility model solves the problem of the single use of the prior art and has small noise.
Description
Technical field
The utility model relates to mechanical pump, particularly relates to the diaphragm pump with at least two pump chambers.
Technical background
In food service industry and medical and health industry, the operation of often using diaphragm pump to bleed or pressurize.But the diaphragm pump of typical better performances all has at least two pump chambers, and they are designed to the operation of can only bleeding usually, perhaps the operation that can only pressurize.Such as, the diaphragm pump with four pump chambers shown in Figure 8 is with regard to the operation that only is suitable for pressurizeing.Section shown in Figure 8 has two pump chambers, and the section of vertical drawing has two other pump chamber.The case shell 2 that this diaphragm pump has a upper-end surface to open wide, case shell 2 bottom center have a through hole 21, and case shell 2 bottom peripheries have four suction ports 22 that lead to through hole 21; A motor 1 is installed in case shell 2 bottom outside, and the through hole 21 that its output shaft 11 passes case shell 2 bottoms stretches into connection driving mechanism 3 in the case shell 2.Driving mechanism 3 is made up of a crank platform 31, steel ball 32, a live axle 33 and a umbrella shape driving body 34, is arranged in the case shell 2.The output shaft 11 of blind hole 312 fixedly connected motor 1 is done by crank platform 31 lower end surface central authorities; An off-centered inclined hole 311 has been done in crank platform 31 upper-end surfaces, and steel ball 32 is placed in inclined hole 311 bottoms, and live axle 33 upper ends are fixedly mounted on the shank of umbrella shape driving body 34, and live axle 33 lower ends are inserted in crank platform 31 inclined holes 311 obliquely.Case shell 2 upper ends butt joint barrier film press part 4.Cylinder shell that barrier film press part 4 is opened wide by a lower end surface 41, diaphragm main body 42, a valve cover 43 and four outlet valves 44 are formed.The upper-end surface of cylinder shell 41 has four pump chamber holes 411 and four inlet holes 412 of supplying gas to corresponding pump chamber symmetrically; End periphery on 41 times end periphery butt joints of cylinder shell case shell 2.Flat diaphragm main body 42 forms the diaphragm portion 422 of four formation pump chambers 421 symmetrically downwards, each diaphragm portion 422 bottom extends to form drive end 422a respectively downwards, and the inlet hole 412 of supplying gas to each pump chamber on the diaphragm main body 42 corresponding cylinder shell 41 has been made four suction valves 423.Diaphragm main body 42 correspondences are installed on the upper-end surface of cylinder shell 41, and four diaphragm portions 422 of diaphragm main body 42 fall into four pump chamber holes 411 of cylinder shell 41 respectively, and four suction valves 423 of diaphragm main body 42 hide four inlet holes 412 of cylinder shell 41 respectively; The drive end 422a of four diaphragm portion 422 bottoms of diaphragm main body 42 is separately fixed on the Umbrella face 34a of umbrella shape driving body 34.Corresponding four pump chambers 421 in valve cover 43 lower end surfaces and suction valve 423 thereof are respectively equipped with gas guide groove 431, and valve cover 43 corresponding four pump chambers 421 are respectively equipped with exhaust port 432, and each exhaust port 432 is installed an outlet valve 44.Valve cover 43 is fixedly mounted on the cylinder shell 41, and sealing and clamping diaphragm main body 42, four suction valves 423 of diaphragm main body 42 are communicated with corresponding pump chamber 421 through the gas guide groove 431 of valve cover 43 lower end surface correspondences respectively.Four exhaust ports 432 and outlet valve 44 lay respectively at pump chamber 421 tops of diaphragm main body 42 correspondences on the valve cover 43.Gas collection portion 5 is installed in barrier film press part 4 tops.An air chamber 51 is arranged at gas collection portion 5 bottoms, and top is shrunk to the exhaust nozzle 52 of a connection air chamber 51.Gas collection portion 5 is installed on the valve cover 43, and air chamber 51 contains on the valve covers 43 four exhaust ports 432 and outlet valve 44.The exhaust nozzle 52 of gas collection portion 5 flexible pipe of can pegging graft connects external container.
When the output shaft 11 of motor 1 drives 31 rotations of crank platform, the live axle 33 of oblique cutting is promoted to rotate around live axle 11 by crank platform 31 in the inclined hole 311 of crank platform 31, live axle 33 fixedly connected umbrella shape driving body 34 because the drive end 422a of four diaphragm portion 422 bottoms of the fixedly connected diaphragm main body 42 of Umbrella face 34a makes umbrella shape driving body 34 be limited and can not rotate with live axle 33; Thereby force live axle 33 to rotate relative to the inclined hole 311 of crank platform 31, steel ball 32 reduces pivoting friction at inclined hole 311 bottom pushing tow live axles 33; And the Umbrella face 34a of umbrella shape driving body 34 swings when live axle 11 rotates, and the drive end 422a of four diaphragm portion 422 bottoms of traction does and pumps.Any one drive end 422a descends, and the volume of corresponding pump chamber 421 will increase, and this pump chamber 421 is negative pressure state opens suction valve 423, and outside air enters this pump chamber 421 from inlet hole 412; This drive end 422a rises, corresponding pump chamber 421 volumes will reduce and air pressures in the pump chamber 421 increase, suction valve 423 sealings, this pressure is increased to a certain limit, pressurized air in the pump chamber 421 backs down outlet valve 44 and delivers to the pressurized external container space through the flexible pipe that exhaust nozzle 52 enters grafting from air chamber 51, external container is realized the operation of pressurization.
Conclusion is got up, and this diaphragm pump comprises case shell that a motor 1, upper-end surface open wide 2, one rotatablely moving of motor output shaft turned to driving mechanism that the drive end of each pump chamber pumps 3, a barrier film press part 4 and the gas collection portion 5 by exhaust nozzle 52 unified outside transporting compressed gas bodies with four pump chambers 421.Motor 1 is installed in case shell 2 bottom outside, and its output shaft 11 stretches into and connects driving mechanism 3 in the case shell 2; Barrier film press part 4 fixedly is docked at the upper end of case shell 2, and the drive end 422a of its each pump chamber 421 connects the parts 34a that pumps of driving mechanism 3 respectively, and the suction valve 423 of its each pump chamber 421 is in communication with the outside through case shell 2; Gas collection portion 5 is fixed on the barrier film press part 4 and contains the outlet valve 44 of each pump chamber 421.The drive end 422a that the parts 34a that pumps of motor 1 drive transmission device 3 drives barrier film press part 4 each pump chamber 421 pumps, it is that the extending section of this pump chamber is opened suction valve 423 from external world's suction gas that each pump chamber 421 of barrier film press part 4 alternately move downward at the drive end 422a of this pump chamber, move upward at the drive end 422a of this pump chamber and to close 423 pairs of gases of suction valve after promptly entering compressing section and compress at this pump chamber, open outlet valve 44 to gas collection portion 5 transporting compressed gas bodies, close outlet valve 44 at last and enter next circulation.
Each outlet valve of this diaphragm pump can produce the noise of similar whistle when gas collection portion transporting compressed gas body, can cause user's dislike.In addition, in the time of need bleeding operation to external container, such as the operation that the aluminium film package bag of filling tealeaves is vacuumized, because four suction ports of this diaphragm pump are opened in case shell bottom periphery, do not provide one to be communicated with the suction nozzle of four suction ports, and be difficult to use so that the grafting flexible pipe connects external container-package bag.
Summary of the invention
The utility model aims to provide a kind of diaphragm pump of eliminating the whistle noise, and it can be used for arbitrarily external container done and bleed or the two-purpose pump of bleeding, pressurize of pressurized operation by the user.
The technical solution of the utility model method is: the two-purpose pump of bleeding, pressurize comprises case shell that a motor, upper-end surface open wide, one rotatablely moving of motor output shaft is converted into driving mechanism, a barrier film press part with at least two pump chambers and gas collection portion by the unified outside transporting compressed gas body of exhaust nozzle that each pump chamber drive end pumps; Motor mounting is in case shell bottom outside, and its output shaft stretches in the case shell and connects driving mechanism; The barrier film press part fixedly is docked at the upper end of case shell, and the drive end of its each pump chamber connects the parts that pump of driving mechanism respectively; Gas collection portion is fixed on the barrier film press part and contains the outlet valve of each pump chamber; It is characterized in that: in the described gas collection portion exhaust nozzle current stabilizer is housed; The suction valve of described each pump chamber of barrier film press part is in communication with the outside by the unified suction unit that outwards sucks gas of air absorbing mouth through one.
Described current stabilizer is box-like that an end opens wide, and opening end is towards the exhaust nozzle outlet side; The current stabilizer bottom surface has a plurality of through holes of annular spread.
And then, the plasticity damper of a umbrella shape is installed in the described current stabilizer, its umbrella cover portion is facing to each through hole of current stabilizer bottom surface, and its shank is fixed on the center of current stabilizer bottom surface.
Described suction unit comprises air absorbing mouth, breather line and suction chamber; Air absorbing mouth be located at gas collection portion and exhaust nozzle arranged side by side, breather line is located at the barrier film press part, is communicated with air absorbing mouth and suction chamber; Suction chamber also is located at the barrier film press part, contains the suction valve of each pump chamber.
Be provided with safety check between described breather line and the suction chamber.
Describedly rotatablely moving of motor output shaft turned to the driving mechanism that each pump chamber drive end pumps comprise a crank platform, an axle sleeve, a rolling bearing, a steel ball, a live axle and a umbrella shape driving body; The output shaft of a fixedly connected motor of blind hole is done by crank platform lower end surface central authorities; An off-centered ladder inclined hole has been done in crank platform upper-end surface, and axle sleeve is placed in the aperture of ladder inclined hole bottom, and steel ball is placed in the axle sleeve and the bottom surface of contact ladder inclined hole; Rolling bearing is placed in the macropore on ladder inclined hole top, and the live axle bottom wears rolling bearing and axle sleeve, live axle lower end surface contact steel ball; The live axle upper end is fixedly mounted on the shank of umbrella shape driving body, fixes the drive end of each pump chamber on the Umbrella face of umbrella shape driving body respectively.
Two-purpose pump is bled, pressurizeed to the utility model on the basis of existing barrier film compression pump with at least two pump chambers, adorns a current stabilizer in gas collection portion exhaust nozzle inboard and eliminate the noise that each outlet valve produces when gas collection portion transporting compressed gas body; Again the suction valve of each pump chamber of barrier film press part is in communication with the outside by the unified suction unit that outwards sucks gas of air absorbing mouth through one, it is arranged side by side with exhaust nozzle that air absorbing mouth is located at gas collection portion, makes things convenient for the user freely to select the mode of use.Current stabilizer adopts box-like that an end opens wide, the bottom surface has the plasticity damper that a umbrella shape is installed in a plurality of through holes of annular spread and the current stabilizer, its umbrella cover portion is facing to each through hole of current stabilizer bottom surface, its shank is fixed on the structural type of the center of current stabilizer bottom surface, simple in structure, the de-noising sound is effective.Install axle sleeve and rolling bearing between the inclined hole of crank platform and the live axle additional, reduced the inclined hole of crank platform and the friction noise that the wearing and tearing between the live axle also can reduce them.Be provided with safety check between the breather line of suction unit and the suction chamber, can improve the degree of vacuum of bleeding.Because it and the barrier film compression pump similarity degree height of prior art, a lot of component can be used and exchange, and additional cost of production is low, also are convenient to keep in repair.
Description of drawings
Fig. 1 is the utility model bleed, pressurize deployed configuration schematic representation of two-purpose pump embodiment one.
Fig. 2 is Fig. 1 embodiment's the deployed configuration schematic representation that looks up the end of from.
Fig. 3 is Fig. 1 embodiment's a plan structure schematic representation.
Fig. 4 is the N-N cross-sectional view of Fig. 3.
Fig. 5 is the P-P cross-sectional view of Fig. 3.
Fig. 6 is the utility model bleed, pressurize perspective view of current stabilizer of two-purpose pump embodiment two.
Fig. 7 is the utility model bleed, pressurize perspective view of damper of two-purpose pump embodiment two.
Fig. 8 is the cross-sectional view of prior art diaphragm pump.
Specific embodiment
One, embodiment one
The utility model bleed, pressurize deployed configuration of two-purpose pump embodiment one, shown in Fig. 1-5, it comprise case shell that a motor 10, upper-end surface open wide 20, one with rotatablely moving of motor output shaft be converted into barrier film press part 40, one that driving mechanism that each pump chamber drive end pumps 30, one have four pump chambers by the gas collection portion 50 of the unified outside transporting compressed gas body of exhaust nozzle and one by the unified suction unit 60 that outwards sucks gas of air absorbing mouth.
Flat diaphragm main body 402 usefulness rubber materials are made, and its periphery forms the diaphragm portion 4022 of four formation pump chambers 4021 symmetrically downwards, and each diaphragm portion 4022 bottom extends to form drive end 4022a respectively downwards.Diaphragm main body 402 central authorities are provided with the middle part via hole 6022 of the breather line 602 of suction unit 60, and the upper end of via hole 6022 is provided with the safety check 604 between breather line 602 and the suction chamber 603.The periphery of via hole 6022 is respectively equipped with the suction valve 4023 of each inlet hole 4012 on four corresponding cylinder shell 401.Diaphragm main body 402 correspondences are installed on the upper-end surface of cylinder shell 401, four diaphragm portions 4022 of diaphragm main body 402 fall into four pump chamber holes 4011 of cylinder shell 401 respectively, the middle part via hole 6022 of diaphragm main body 402 central authorities is facing to the bottom via 6021 of the upper-end surface central authorities of cylinder shell 401, and four suction valves 4023 of diaphragm main body 402 hide four inlet holes 4012 of cylinder shell 401 respectively.The Umbrella face 304a that the drive end 4022a of four diaphragm portion 4022 bottoms of diaphragm main body 402 is fixed on umbrella shape driving body 304 respectively goes up in the corresponding draw-in groove.
Valve cover 403 is plastic square plates, and its central authorities are provided with the top via hole 6023 of the breather line 602 of suction unit 60, and top via hole 6023 is facing to the middle part via hole 6022 of diaphragm main body 402 central authorities, and shrink its bottom, is hidden by safety check 604; Corresponding four pump chambers 4021 in valve cover 403 lower end surfaces and suction valve 4023 thereof are respectively equipped with gas guide groove 4031, and valve cover 403 corresponding four pump chambers 4021 are respectively equipped with exhaust port 4032, and each exhaust port 4032 is installed an outlet valve 404.403 4 side central authorities of valve cover are respectively equipped with bolt hole 4033, and stay bolt passes bolt hole 4033 is fixedly mounted on the cylinder shell 401 valve cover 403, valve cover 403 sealing diaphragm main bodies 402, and with cylinder shell 401 clamping diaphragm main bodies 402.Four suction valves 4023 of diaphragm main body 402 are communicated with corresponding pump chamber 4021 through the gas guide groove 4031 of valve cover 403 lower end surface correspondences respectively.Four exhaust ports 4032 and outlet valve 404 lay respectively at pump chamber 4021 tops of diaphragm main body 402 correspondences on the valve cover 403.
When the output shaft 101 of motor 10 drives 301 rotations of crank platform, the live axle 303 of oblique cutting is promoted to rotate around live axle 101 by crank platform 301 in the sloping step hole of crank platform 301, live axle 303 fixedly connected umbrella shape driving body 304 because the drive end 4022a of four diaphragm portion 4022 bottoms of the fixedly connected diaphragm main body 402 of Umbrella face 304a makes umbrella shape driving body 304 be limited and can not rotate with live axle 303; Thereby force live axle 303 to drive the rolling bearing 305 in the sloping step hole of crank platforms 301 and rotate relative to axle sleeve 306, steel ball 302 is pushing tow live axle 303 bottom the sloping step hole; And the Umbrella face 304a of umbrella shape driving body 304 swings when live axle 101 rotates, and the drive end 4022a of four diaphragm portion 4022 bottoms of traction does and pumps.Any one drive end 4022a descends, and the volume of corresponding pump chamber 4021 will increase, and this pump chamber 4021 is negative pressure state opens corresponding suction valve 4023, and the air in the suction chamber 603 of suction unit 60 enters this pump chamber 4021 from inlet hole 4012; Be negative pressure state in the suction chamber 603 safety check 604 is opened, air enters suction chamber 603 from the air absorbing mouth 601 of suction unit 60.This drive end 4022a rises, corresponding pump chamber 4021 volumes will reduce and air pressures in the pump chamber 4021 increase, suction valve 4023 sealings, this pressure is increased to a certain limit, and the pressurized air in the pump chamber 4021 backs down outlet valve 404 and delivers to exhaust nozzle 502 from air chamber 501 through current stabilizer 503.The noise that current stabilizer 503 produced in the time of can eliminating pressurized air and flow through outlet valve 404.If with exhaust nozzle 502 grafting soft pipe connection external containers, and air absorbing mouth 601 is opened wide, this pump is realized the operation of pressurization to external container.If with air absorbing mouth 601 grafting soft pipe connection external containers, and exhaust nozzle 502 is opened wide the operation that realization is bled to external container of this pump.When bleeding operation, suction chamber 603 cooperates with safety check 604, but gas clean-up.
Two, embodiment two
The utility model bleed, pressurize structure of two-purpose pump embodiment two, basic identical with last embodiment, do not give unnecessary details; Difference be current stabilizer 503 ' bottom surface of embodiment two have 6 through holes 5031 that circularize arrangement ' and shoulder hole 5032 that is positioned at the central position ', the plasticity damper 504 of a umbrella shape has been installed in current stabilizer 503 ' inside, its umbrella cover portion 5041 facing to each through hole 5031 of current stabilizer 503 ' bottom surface ', its shank 5042 be fixed on the shoulder hole 5032 of the center of current stabilizer 503 ' bottom surface ' in, shown in Fig. 6-7.Flow through each through hole 5031 of current stabilizer 503 ' bottom surface ' blow to the umbrella cover portion 5041 of damper 504 of pressurized air, the effect that abates the noise is more obvious.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, the i.e. equivalence of doing according to the utility model claim and description changes and modifies, for example use the barrier film press part of two or three pump chambers, the structure of conversion suction valve and outlet valve all should still belong in the scope that the utility model patent contains.
Claims (6)
1. the two-purpose pump of bleeding, pressurize comprises case shell that a motor, upper-end surface open wide, one rotatablely moving of motor output shaft is converted into driving mechanism, a barrier film press part with at least two pump chambers and gas collection portion by the unified outside transporting compressed gas body of exhaust nozzle that each pump chamber drive end pumps; Motor mounting is in case shell bottom outside, and its output shaft stretches in the case shell and connects driving mechanism; The barrier film press part fixedly is docked at the upper end of case shell, and the drive end of its each pump chamber connects the parts that pump of driving mechanism respectively; Gas collection portion is fixed on the barrier film press part and contains the outlet valve of each pump chamber; It is characterized in that: in the described gas collection portion exhaust nozzle current stabilizer is housed; The suction valve of described each pump chamber of barrier film press part is in communication with the outside by the unified suction unit that outwards sucks gas of air absorbing mouth through one.
2. the two-purpose pump of bleeding, pressurize according to claim 1 is characterized in that: described current stabilizer is box-like that an end opens wide, and opening end is towards the exhaust nozzle outlet side; The current stabilizer bottom surface has a plurality of through holes of annular spread.
3. the two-purpose pump of bleeding, pressurize according to claim 2 is characterized in that: the plasticity damper of a umbrella shape is installed in the described current stabilizer, and its umbrella cover portion is facing to each through hole of current stabilizer bottom surface, and its shank is fixed on the center of current stabilizer bottom surface.
4. according to claim 1 or the 2 or 3 described two-purpose pumps of bleeding, pressurize, it is characterized in that: described suction unit comprises air absorbing mouth, breather line and suction chamber; Air absorbing mouth be located at gas collection portion and exhaust nozzle arranged side by side, breather line is located at the barrier film press part, is communicated with air absorbing mouth and suction chamber; Suction chamber also is located at the barrier film press part, contains the suction valve of each pump chamber.
5. the two-purpose pump of bleeding, pressurize according to claim 4 is characterized in that: be provided with safety check between described breather line and the suction chamber.
6. according to claim 1 or the 2 or 3 described two-purpose pumps of bleeding, pressurize, it is characterized in that: describedly rotatablely moving of motor output shaft turned to the driving mechanism that each pump chamber drive end pumps comprise a crank platform, an axle sleeve, a rolling bearing, a steel ball, a live axle and a umbrella shape driving body; The output shaft of a fixedly connected motor of blind hole is done by crank platform lower end surface central authorities; An off-centered ladder inclined hole has been done in crank platform upper-end surface, and axle sleeve is placed in the aperture of ladder inclined hole bottom, and steel ball is placed in the axle sleeve and the bottom surface of contact ladder inclined hole; Rolling bearing is placed in the macropore on ladder inclined hole top, and the live axle bottom is set in rolling bearing and the axle sleeve, live axle lower end surface contact steel ball; Live axle top is fixedly mounted on the shank of umbrella shape driving body, fixes the drive end of each pump chamber on the Umbrella face of umbrella shape driving body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053151 CN2723733Y (en) | 2004-08-16 | 2004-08-16 | Two purpose pump for air extracting and pressurizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420053151 CN2723733Y (en) | 2004-08-16 | 2004-08-16 | Two purpose pump for air extracting and pressurizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723733Y true CN2723733Y (en) | 2005-09-07 |
Family
ID=35037360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420053151 Expired - Lifetime CN2723733Y (en) | 2004-08-16 | 2004-08-16 | Two purpose pump for air extracting and pressurizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723733Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536754A (en) * | 2010-11-30 | 2012-07-04 | Ulvac机工株式会社 | Pump device and pump system |
| CN103174617A (en) * | 2011-12-21 | 2013-06-26 | 邓闵键 | Booster pumping structure |
| CN103671079A (en) * | 2013-10-25 | 2014-03-26 | 厦门科际精密器材有限公司 | Air pump with improved air tightness |
| CN104047832A (en) * | 2013-03-11 | 2014-09-17 | 厦门科际精密器材有限公司 | Miniature air pump |
| CN106989001A (en) * | 2017-03-15 | 2017-07-28 | 深圳市联康医疗技术有限公司 | High-flow low-noise micro air pump |
| CN107120260A (en) * | 2014-08-13 | 2017-09-01 | 耐斯特恩公司 | The off-axis formula driver of inclination for quiet pneumatic pumping |
| CN114183330A (en) * | 2021-12-14 | 2022-03-15 | 广州大学 | Eccentric wheel transmission device and diaphragm air pump comprising same |
-
2004
- 2004-08-16 CN CN 200420053151 patent/CN2723733Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536754A (en) * | 2010-11-30 | 2012-07-04 | Ulvac机工株式会社 | Pump device and pump system |
| CN102536754B (en) * | 2010-11-30 | 2015-08-26 | Ulvac机工株式会社 | Pump-unit and pumping system |
| CN103174617A (en) * | 2011-12-21 | 2013-06-26 | 邓闵键 | Booster pumping structure |
| CN104047832A (en) * | 2013-03-11 | 2014-09-17 | 厦门科际精密器材有限公司 | Miniature air pump |
| CN104047832B (en) * | 2013-03-11 | 2016-08-24 | 厦门科际精密器材有限公司 | Micro air pump |
| CN103671079A (en) * | 2013-10-25 | 2014-03-26 | 厦门科际精密器材有限公司 | Air pump with improved air tightness |
| CN103671079B (en) * | 2013-10-25 | 2016-02-03 | 厦门科际精密器材有限公司 | A kind of tightness improved type air pump |
| CN107120260A (en) * | 2014-08-13 | 2017-09-01 | 耐斯特恩公司 | The off-axis formula driver of inclination for quiet pneumatic pumping |
| CN106989001A (en) * | 2017-03-15 | 2017-07-28 | 深圳市联康医疗技术有限公司 | High-flow low-noise micro air pump |
| CN106989001B (en) * | 2017-03-15 | 2019-12-10 | 深圳市联康医疗技术有限公司 | High-flow low-noise miniature air pump |
| CN114183330A (en) * | 2021-12-14 | 2022-03-15 | 广州大学 | Eccentric wheel transmission device and diaphragm air pump comprising same |
| CN114183330B (en) * | 2021-12-14 | 2024-03-01 | 广州大学 | Eccentric wheel transmission device and diaphragm air pump comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140816 Granted publication date: 20050907 |