CN114517776A - Portable mini-air compression pump for medical oxygen generator - Google Patents
Portable mini-air compression pump for medical oxygen generator Download PDFInfo
- Publication number
- CN114517776A CN114517776A CN202210110187.5A CN202210110187A CN114517776A CN 114517776 A CN114517776 A CN 114517776A CN 202210110187 A CN202210110187 A CN 202210110187A CN 114517776 A CN114517776 A CN 114517776A
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- Prior art keywords
- valve plate
- air inlet
- pump
- piston
- assembly
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Classifications
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- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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- 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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/02—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders arranged oppositely relative to main shaft
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/005—Pulsation and noise damping means with direct action on the fluid flow using absorptive materials
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a miniature air compression pump for a portable medical oxygen generator, belonging to air and belonging to an injection pump. The device comprises a pump shell, a cylinder assembly, a piston assembly, a connecting rod assembly and a motor; the pump shell consists of a pump body (5) and an end cover (11), the cylinder assembly consists of the pump shell, a cylinder sleeve (3), a valve plate assembly and a cylinder cover (1), and the valve plate assembly consists of an exhaust reed valve plate (16) which is fixed on an exhaust valve plate (2) and seals an exhaust valve hole (9); the piston assembly consists of a piston body (10), an air inlet valve plate (15), a leather cup (17) and an air inlet reed valve plate (14); the connecting rod assembly consists of two connecting rods (6) respectively connected with the two piston bodies (10) and an eccentric wheel (7) connected with the two connecting rods (6), and air inlet channels (18) are arranged in the two connecting rods (6); the motor (4) is fixedly connected with the eccentric wheel (7).
Description
Technical Field
The invention relates to an air compression pump, in particular to a miniature air compression pump for a portable medical oxygen generator, belonging to an injection pump.
Background
The air compression pump of the portable medical oxygen generator is usually of a single-cylinder structure due to the restriction of factors such as space, weight, volume and the like. The working principle is that the motor is rigidly connected with the eccentric wheel, the valve plate is provided with the air inlet reed valve block and the air outlet reed valve block, the cylinder cover is provided with the air inlet and the air outlet, the connecting rod and the piston are driven by the motor shaft to reciprocate, the volume of the cylinder is periodically changed, the air entering from the air inlet valve is compressed, and then the air is output through the air outlet valve. The air compression pump has the problems of incompact structure, small flow, low efficiency, large noise and vibration and the like.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the miniature air compression pump for the portable medical oxygen generator, which has the advantages of compact structure, large flow, high efficiency and low noise and vibration.
In order to achieve the purpose, the invention adopts the following technical scheme: the piston type air pump comprises air cylinder assemblies respectively fixed at two ends of a pump shell, piston assemblies positioned in the air cylinder assemblies, connecting rod assemblies connected with the two piston assemblies, and a motor fixed on the pump shell and driving the connecting rod assemblies to move.
The pump shell is composed of a pump body with an air inlet on the front surface and an end cover fixed at the bottom of the pump body in a sealing manner. The air cylinder assembly comprises a cylinder sleeve which is in butt joint communication with the end face of the pump shell and a cylinder cover which seals and compresses one end of the cylinder sleeve through a valve plate assembly, and the valve plate assembly comprises an exhaust valve plate and an exhaust reed valve plate, wherein the surface of the exhaust valve plate is provided with an exhaust valve hole, and the exhaust reed valve plate is fixed on the exhaust valve plate and seals the exhaust valve hole. The piston assembly is composed of a piston body which is positioned in the cylinder sleeve and is of a bowl-shaped structure, a leather cup which is tightly pressed on the end face of the piston body through an air inlet valve plate with four air inlet valve holes, and an air inlet reed valve plate which is fixed on the air inlet valve plate and blocks the four air inlet valve holes. The connecting rod assembly consists of two connecting rods which are positioned in the cavity of the pump shell and are respectively fixedly connected with the piston bodies into a whole, and eccentric wheels which are respectively connected with the two connecting rods through bearings, and air inlet channels which are communicated with the concave cavities of the piston bodies are arranged in the two connecting rods. The motor is fixedly connected with the eccentric wheel.
In the technical scheme, the surface of the air inlet reed valve plate is provided with two transverse grooves and two longitudinal grooves, and the intersection of the two transverse grooves and the two longitudinal grooves is provided with a notch.
In the above technical solution, the intake reed valve plate may also be a cross-shaped structure.
In the above technical solution, a filter is fixed in the air inlet.
In the above technical scheme, the eccentric wheel is provided with a balancing weight which is connected with the eccentric wheel into a whole.
Compared with the prior art, the invention has the following advantages due to the adoption of the technical scheme:
1) the double-cylinder structure with two rows of cylinders arranged oppositely is adopted, so that the balance of reciprocating inertia force can be effectively ensured, the vibration during operation is reduced, the air compression flow can be increased, and the working efficiency is improved.
2) Four air inlet valve holes which are uniformly distributed are adopted on the air inlet valve plate, so that the defects that the valve plate is large in opening degree and easy to touch with the exhaust valve plate when a single valve hole is used for air inlet can be overcome. And two transverse grooves and two longitudinal grooves are cut on the surface of the air inlet valve plate, and a notch is formed at the intersection of the transverse grooves and the longitudinal grooves in a punching mode, so that the deformation factors restricting the longitudinal direction and the transverse direction can be eliminated, the air inlet valve plate can be uniformly deformed in the longitudinal direction and the transverse direction, and the opening degree of the valve plate in each direction is moderate.
3) The air inlet channel is arranged in the connecting rod, so that the structure can be simplified, the volume can be reduced, and the weight can be reduced.
Drawings
FIG. 1 is an exploded view of the assembly of the present invention;
FIG. 2 is a schematic view of the assembly structure of the connecting rod assembly in combination with the cylinder liner of the present invention;
FIG. 3 is an exploded view of the assembly of the connecting rod assembly of the present invention;
FIG. 4 is a schematic structural view of the intake reed valve of the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a cross-sectional view B-B of FIG. 4;
FIG. 7 is a schematic structural view of another embodiment of the intake reed valve of the present invention;
fig. 8 is a schematic perspective view of the pump body of the present invention.
In the figure: the air filter comprises a cylinder cover 1, an exhaust valve plate 2, a cylinder sleeve 3, a motor 4, a pump body 5, a connecting rod 6, an eccentric wheel 7, a fastening screw 8, an exhaust valve hole 9, a piston body 10, an end cover 11, a supporting bearing 12, a balancing weight 13, an air inlet reed valve plate 14, an air inlet valve plate 15, an exhaust reed valve plate 16, a leather cup 17, an air inlet channel 18, a concave cavity 19, an air inlet valve hole 20, a transverse groove 21, a notch 22, a longitudinal groove 23, an air inlet 24, a filter 25, a spigot 26 and a cavity 27.
Detailed Description
The invention is further described below with reference to the drawings and the specific examples.
As shown in FIGS. 1-8: the invention comprises cylinder assemblies respectively fixed at the left end and the right end of a pump shell, piston assemblies positioned in the cylinder assemblies, connecting rod assemblies connected with the two piston assemblies, and a motor fixed on the pump shell and driving the connecting rod assemblies to move.
The pump shell is composed of a pump body 5 with a front surface provided with an air inlet 24 and an end cover 11 fixed at the bottom of the pump body in a sealing way, wherein the air inlet 24 is communicated with a cavity 27 of the pump body 5. The cylinder assembly is composed of cylinder sleeves 3 which are respectively in butt joint communication with a spigot 26 on the left end face and a spigot 26 on the right end face of the pump body 5, and a cylinder cover 1 which seals and presses one end of each of the two cylinder sleeves 3 on the pump body 5 through a valve plate assembly, wherein the valve plate assembly is composed of an exhaust valve plate 2 with an exhaust valve hole 9 formed in the surface, and an exhaust reed valve plate 16 which is fixed on the exhaust valve plate and seals the exhaust valve hole 9. An exhaust nozzle (not shown) fixed on the cylinder head 1 is communicated with the cavity 27 through the exhaust valve hole 9 and the cylinder sleeve 3 in sequence. The piston assembly is composed of a piston body 10 which is positioned in the cylinder sleeve 3 and is in a bowl-shaped structure, a leather cup 17 which is tightly pressed on the end surface of the piston body 10 through an air inlet valve plate 15 with four air inlet valve holes 20, and an air inlet reed valve plate 14 which is fixed on the air inlet valve plate 15 and seals the four air inlet valve holes 20. The connecting rod assembly consists of two connecting rods 6 which are positioned in the cavity 27 and are respectively fixedly connected with the piston bodies 10 into a whole, and eccentric wheels 7 which are respectively connected with the two connecting rods 6 through bearings (not marked in the figure), and air inlet channels 18 which are communicated with the cavities 19 of the piston bodies 10 are respectively arranged in the two connecting rods 6. The motor 4 fixed on the top of the pump body 5 is connected with the eccentric wheel 7 through a rotating shaft thereof in an interference fit mode and is further locked and fixed by a fastening screw 8.
In order to prevent the rotation shaft of the electric motor 4 from swinging, a support bearing 12 is fixed to the end cover 11, and the rotation shaft of the electric motor 4 is fixed in the support bearing 12 through the two connecting rod holes and the eccentric 7.
In the air intake process, the intake reed valve sheet 14 (with a thickness of 0.076 mm) is deformed in four directions, namely, the up-down direction, the left-right direction and opened under the action of the air flow in the four intake valve holes 20. However, due to the influence of many factors such as material uniformity, processing errors, uneven airflow size of the four intake valve holes 20, and mutual reinforcement when the four corner positions of the intake reed valve plate 14 are turned outwards at the same time, the deformation amounts of the intake reed valve plate 14 in the up, down, left and right directions are different, so that the opening of the intake reed valve plate 14 in a certain direction is increased, and the opening of the intake reed valve plate 14 in a certain direction is decreased. The frequent and non-uniform deformation mode not only easily causes fatigue of the intake reed valve plate 14 at the deformation position to influence the service life, but also easily causes the intake reed valve plate 14 to touch the exhaust valve plate 2 by large-angle opening, thereby generating noise and abnormal sound. In order to eliminate the mutual reinforcing effect formed at the corner position when the intake reed valve sheet 14 is turned over in four directions simultaneously, ensure the uniform deformation in four directions, ensure the valve sheet to be opened or closed freely and reliably, reduce noise and prolong the service life of the valve sheet, two transverse grooves 21 and two longitudinal grooves 23 are arranged on the surface of the intake reed valve sheet 14, and a notch 22 is arranged at the intersection of the two transverse grooves 21 and the two longitudinal grooves 23. The width and depth of the transverse grooves 21 and the longitudinal grooves 23 are both 0.5 mm and 0.03 mm.
In order to simplify the processing process, the intake reed valve plate 14 may also adopt a cross-shaped structure (see fig. 8).
In order to keep the cylinder interior clean, a filter 25 is fixed in the intake port 24.
In order to reduce vibrations, the eccentric 7 has a weight 13 connected to it.
The working principle is as follows: under the drive of the motor 4, the connecting rod assembly drives the piston assembly to do reciprocating linear motion in the cylinder sleeve 3 (see fig. 1 and 2). When the left piston assembly moves rightwards, the left exhaust valve plate 2 closes the left exhaust hole 9; air enters the cavity 27 from the air inlet 24 and then enters the cavity 19 through the air inlet 18 to push open the left air inlet valve plate 14 to enter the cylinder sleeve 3, and air suction is completed. When the left piston assembly moves to the left, the left air inlet valve plate 14 closes the air inlet hole 20; the air in the cylinder sleeve 3 pushes the left exhaust valve plate 2 open due to the compression, and the air in the cylinder sleeve 3 enters the cylinder cover 1 through the left exhaust hole 9 and is exhausted from the exhaust nozzle to finish the exhaust.
Claims (5)
1. A miniature air compression pump for a portable medical oxygen generator comprises air cylinder assemblies respectively fixed at two ends of a pump shell, piston assemblies positioned in the air cylinder assemblies, connecting rod assemblies connected with the two piston assemblies, and a motor fixed on the pump shell and driving the connecting rod assemblies to move; the method is characterized in that:
the pump shell consists of a pump body (5) with an air inlet (24) on the front surface and an end cover (11) fixed at the bottom of the pump body in a sealing way;
the air cylinder assembly is composed of a cylinder sleeve (3) which is in butt joint communication with the end face of the pump shell and a cylinder cover (1) which seals and compresses one end of the cylinder sleeve through a valve plate assembly, and the valve plate assembly is composed of an exhaust valve plate (2) the surface of which is provided with an exhaust valve hole (9) and an exhaust reed valve plate (16) which is fixed on the exhaust valve plate and blocks the exhaust valve hole (9);
the piston assembly is composed of a piston body (10) which is positioned in the cylinder sleeve (3) and is of a bowl-shaped structure, a leather cup (17) which is tightly pressed on the end surface of the piston body (10) through an air inlet valve plate (15) with four air inlet valve holes (20), and an air inlet reed valve plate (14) which is fixed on the air inlet valve plate (15) and blocks the four air inlet valve holes (20);
the connecting rod assembly consists of two connecting rods (6) which are positioned in a pump shell cavity (27) and are respectively fixedly connected with each piston body (10) into a whole and eccentric wheels (7) which are respectively connected with the two connecting rods (6) through bearings, and air inlet channels (18) which are communicated with cavities (19) of the piston bodies (10) are respectively arranged in the two connecting rods (6);
the motor (4) is fixedly connected with the eccentric wheel (7).
2. The miniature air compressor pump for a portable medical oxygen generator as set forth in claim 1, wherein: two transverse grooves (21) and two longitudinal grooves (23) are formed in the surface of the air inlet reed valve plate (14), and notches (22) are formed in the intersection of the two transverse grooves (21) and the two longitudinal grooves (23).
3. The miniature air compressor pump for a portable medical oxygen generator as set forth in claim 1, wherein: the air inlet reed valve plate (14) is in a cross-shaped structure.
4. The miniature air compressor pump for a portable medical oxygen generator as set forth in claim 1, wherein: a filter (25) is fixed in the air inlet (24).
5. The miniature air compressor pump for a portable medical oxygen generator as set forth in claim 1, wherein: the eccentric wheel (7) is provided with a counterweight block (13) which is connected with the eccentric wheel into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210110187.5A CN114517776A (en) | 2022-01-29 | 2022-01-29 | Portable mini-air compression pump for medical oxygen generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210110187.5A CN114517776A (en) | 2022-01-29 | 2022-01-29 | Portable mini-air compression pump for medical oxygen generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114517776A true CN114517776A (en) | 2022-05-20 |
Family
ID=81596211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210110187.5A Pending CN114517776A (en) | 2022-01-29 | 2022-01-29 | Portable mini-air compression pump for medical oxygen generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114517776A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980007A (en) * | 2018-09-05 | 2018-12-11 | 宁德职业技术学院 | A kind of novel duplex air pump |
| CN116696718A (en) * | 2023-07-29 | 2023-09-05 | 佛山市鼎聿精密科技有限公司 | Novel double-connecting-rod efficient linear motion piston structure, compressor and vacuum pump |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614200A (en) * | 2009-07-17 | 2009-12-30 | 合肥通用机械研究院 | Oil-free compressor used in locomotive |
| CN202284663U (en) * | 2011-09-06 | 2012-06-27 | 浙江宏竹塑胶五金有限公司 | Spiral tuyere |
| CN202811257U (en) * | 2012-09-11 | 2013-03-20 | 佛山市广顺电器有限公司 | Cross internal gas-intake compressor |
| CN104696193A (en) * | 2015-02-11 | 2015-06-10 | 合肥通用机械研究院 | Combined piston for air compressor |
| CN106224201A (en) * | 2016-08-31 | 2016-12-14 | 温州品达机车部件有限公司 | Vacuum pump of electric automobile |
| CN108105063A (en) * | 2018-02-26 | 2018-06-01 | 浙江北上新能源科技股份有限公司 | Huge discharge compressor and the mechanized equipment with the huge discharge compressor |
| CN207513773U (en) * | 2017-10-25 | 2018-06-19 | 江苏昊泰康医疗器械有限公司 | A kind of reciprocating piston pump of built-in vent channel |
| CN207906020U (en) * | 2018-02-26 | 2018-09-25 | 浙江北上新能源科技股份有限公司 | Huge discharge compressor and mechanized equipment with the huge discharge compressor |
| CN108775278A (en) * | 2018-04-23 | 2018-11-09 | 贵州华烽汽车零部件有限公司 | Portable oxygen generator compressor |
| CN208734512U (en) * | 2018-08-14 | 2019-04-12 | 珩隆(厦门)机械设备有限公司 | Compressor air suction valve block |
| CN211474286U (en) * | 2019-09-04 | 2020-09-11 | 广东广顺新能源动力科技有限公司 | Piston structure with variable cross-section sealing leather cup structure |
| CN112081726A (en) * | 2020-09-22 | 2020-12-15 | 合肥安信通用阀片制造有限公司 | Air suction valve plate and manufacturing method thereof |
| CN213684445U (en) * | 2020-11-12 | 2021-07-13 | 浙江万安其弗汽车零部件有限公司 | Compressor piston comprising an air inlet valve |
| CN214789225U (en) * | 2020-12-23 | 2021-11-19 | 加西贝拉压缩机有限公司 | Novel valve plate structure of refrigeration compressor |
-
2022
- 2022-01-29 CN CN202210110187.5A patent/CN114517776A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614200A (en) * | 2009-07-17 | 2009-12-30 | 合肥通用机械研究院 | Oil-free compressor used in locomotive |
| CN202284663U (en) * | 2011-09-06 | 2012-06-27 | 浙江宏竹塑胶五金有限公司 | Spiral tuyere |
| CN202811257U (en) * | 2012-09-11 | 2013-03-20 | 佛山市广顺电器有限公司 | Cross internal gas-intake compressor |
| CN104696193A (en) * | 2015-02-11 | 2015-06-10 | 合肥通用机械研究院 | Combined piston for air compressor |
| CN106224201A (en) * | 2016-08-31 | 2016-12-14 | 温州品达机车部件有限公司 | Vacuum pump of electric automobile |
| CN207513773U (en) * | 2017-10-25 | 2018-06-19 | 江苏昊泰康医疗器械有限公司 | A kind of reciprocating piston pump of built-in vent channel |
| CN108105063A (en) * | 2018-02-26 | 2018-06-01 | 浙江北上新能源科技股份有限公司 | Huge discharge compressor and the mechanized equipment with the huge discharge compressor |
| CN207906020U (en) * | 2018-02-26 | 2018-09-25 | 浙江北上新能源科技股份有限公司 | Huge discharge compressor and mechanized equipment with the huge discharge compressor |
| CN108775278A (en) * | 2018-04-23 | 2018-11-09 | 贵州华烽汽车零部件有限公司 | Portable oxygen generator compressor |
| CN208734512U (en) * | 2018-08-14 | 2019-04-12 | 珩隆(厦门)机械设备有限公司 | Compressor air suction valve block |
| CN211474286U (en) * | 2019-09-04 | 2020-09-11 | 广东广顺新能源动力科技有限公司 | Piston structure with variable cross-section sealing leather cup structure |
| CN112081726A (en) * | 2020-09-22 | 2020-12-15 | 合肥安信通用阀片制造有限公司 | Air suction valve plate and manufacturing method thereof |
| CN213684445U (en) * | 2020-11-12 | 2021-07-13 | 浙江万安其弗汽车零部件有限公司 | Compressor piston comprising an air inlet valve |
| CN214789225U (en) * | 2020-12-23 | 2021-11-19 | 加西贝拉压缩机有限公司 | Novel valve plate structure of refrigeration compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980007A (en) * | 2018-09-05 | 2018-12-11 | 宁德职业技术学院 | A kind of novel duplex air pump |
| CN116696718A (en) * | 2023-07-29 | 2023-09-05 | 佛山市鼎聿精密科技有限公司 | Novel double-connecting-rod efficient linear motion piston structure, compressor and vacuum pump |
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