CN215170646U - Piston type air compressor - Google Patents
Piston type air compressor Download PDFInfo
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- CN215170646U CN215170646U CN202121634662.6U CN202121634662U CN215170646U CN 215170646 U CN215170646 U CN 215170646U CN 202121634662 U CN202121634662 U CN 202121634662U CN 215170646 U CN215170646 U CN 215170646U
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Abstract
The application discloses piston air compressor machine relates to air compressor and makes technical field, and it includes the crankcase and the one-level cylinder body of being connected with the crankcase, the adaptation has the piston in the one-level cylinder body, install the connecting rod that is used for promoting piston reciprocating motion on the piston, compression chamber and exhaust chamber have been seted up in proper order to connecting rod one side dorsad from connecting rod one side to the one-level cylinder body along self axial, the exhaust chamber is located one side that the one-level cylinder body axial deviates from the connecting rod, be provided with first one-way discharge valve piece on the lateral wall between the exhaust chamber compression chamber, the inlet port has been seted up to the intermediate position of piston, one side fixed cover that the inlet port deviates from the connecting rod is equipped with first one-way air inlet valve piece, the air inlet has been seted up to the position that the crankcase lateral wall corresponds air inlet hole. This application has the loss speed that slows down each spare part in crankcase, the one-level cylinder body, extension air compressor machine life's effect.
Description
Technical Field
The application relates to the technical field of air compressor manufacturing, in particular to a piston type air compressor.
Background
An air compressor is a device for increasing the pressure of gas by compressing the gas. Among them, the reciprocating piston type air compressor is one of the most commonly used pneumatic transmission systems. The air is periodically expanded and reduced through the space formed by the piston and the cylinder in the crankcase, so that the periodic expansion, air suction, compression and exhaust are realized, and the required gas pressure is reached.
In related industries, a cylinder of a reciprocating piston type air compressor generally comprises a piston and a cylinder body, wherein the cylinder body is divided into a first cavity and a second cavity along the axial direction of the cylinder body, the first cavity is located on one side of the cylinder body, which is axially away from a crankcase, the first cavity is divided into an air inlet cavity and an air outlet cavity along any radial direction of the first cavity, and the air inlet cavity and the air outlet cavity are respectively provided with an air inlet valve plate and an air outlet valve plate; meanwhile, the piston is embedded in the second cavity and is in sliding fit with the side wall of the second cavity, and the matching relationship of the piston and the side wall of the second cavity is a tight fit connection relationship. When the air compressor runs, the motor drives the crank in the crank case to rotate, and the crank drives the connecting rod and the piston rod to do reciprocating motion, so that the periodic expansion and reduction of the space formed by the piston and the cylinder are completed; when the piston moves along the axis of the piston in the second cavity to the side away from the first cavity, the pressure of the air inlet cavity is smaller than the atmospheric pressure, the air suction valve is opened, and air enters the first cavity under the action of the atmospheric pressure to finish the air suction process; when the piston moves towards the opposite direction, the air suction valve is closed under the action of compressed air in the first cavity, the air in the first cavity is compressed, and a compression process is carried out; when the gas pressure in the first cavity rises to be slightly larger than the pressure in the gas pipe of the gas outlet cavity, the gas discharge valve plate is opened, compressed air enters the gas outlet cavity from the gas discharge valve plate and then enters other cylinder bodies or terminal equipment, and the 'gas discharge process' is completed.
In view of the above-mentioned related technologies, the inventor believes that, when the air compressor is used to compress air, the side wall and the piston of the cylinder body are subjected to a large pressure in the air suction process, the compression process and the exhaust process, and the crankcase and the cylinder body generate a large noise; meanwhile, due to the friction effect, after the air compressor works for a period of time, the temperature in the crank case and the cylinder body is continuously increased, the loss of parts in the crank case and the cylinder body is easily increased under the high-pressure, noise and high-temperature environment, the service life of the air compressor is further shortened, and the improvement part is provided.
SUMMERY OF THE UTILITY MODEL
In order to prolong the life of air compressor machine, this application provides a piston air compressor machine.
The application provides a piston air compressor machine adopts following technical scheme:
the utility model provides a piston air compressor, includes the crankcase and the one-level cylinder body of being connected with the crankcase, the adaptation has the piston in the one-level cylinder body, install the connecting rod that is used for promoting piston reciprocating motion on the piston, compression chamber and exhaust chamber have been seted up in proper order to one side of backing away from the connecting rod from connecting rod one side to the one side of one-level cylinder body along self axial to the one-level cylinder body, the chamber of exhausting is located one side that the one-level cylinder body axial deviates from the connecting rod, be provided with first one-way discharge valve piece between the intracavity compression chamber of exhausting, the inlet port has been seted up to the middle part position of piston, the inlet port deviates from one side fixed cover of connecting rod and is equipped with first one-way air inlet valve piece, the air inlet has been seted up to the position that the crankcase lateral wall corresponds air inlet hole.
By adopting the technical scheme, when the air compressor runs, gas is discharged into the crank case and the compression cavity through the air inlet, the space in the crank case is fixed, when the connecting rod drives the piston to move from the exhaust cavity to the compression cavity side in the compression cavity, the space in the compression cavity is extruded, the space of the crank case and the compression cavity, which is positioned at the side of the piston, which is far away from the exhaust cavity, is reduced, the gas pressure in the crank case and the compression cavity is increased, the first one-way air inlet valve plate is opened towards the side, which is close to the exhaust cavity, of the piston, and the gas is discharged into the space of the compression cavity, which is positioned at the side, which is far away from the connecting rod, so that the air suction process is completed; when the piston moves towards the opposite direction, the first one-way air inlet valve plate is closed, and the gas in the space of the compression cavity, which is positioned at the side of the piston, which is far away from the connecting rod is compressed to carry out the compression process; along with the reciprocating motion of the piston in the compression cavity, the gas pressure in the space of the compression cavity, which is positioned at the side of the piston, which is far away from the connecting rod continuously rises, and when the gas pressure in the space of the compression cavity, which is positioned at the side of the piston, which is far away from the connecting rod rises to be slightly greater than the gas pressure in the exhaust cavity, the first one-way exhaust valve plate is opened, compressed air is exhausted into the exhaust cavity, and then the exhaust process is completed.
When gas is introduced into the compression cavity from the crankcase, heat in the crankcase is transferred to the gas, so that the volume of the gas is further expanded, the gas pressure in the crankcase and the compression cavity is increased, the first one-way gas inlet valve plate is opened, and the gas is discharged into the compression cavity and is positioned on one side, away from the connecting rod, of the piston; meanwhile, the gas takes away most of heat and noise in the crankcase, so that the condition that the heat and the noise are accumulated in the crankcase is effectively reduced, and the condition that all parts in the crankcase are damaged is reduced; meanwhile, the side wall of the first-stage cylinder body and the piston only bear large pressure in the compression process and the exhaust process, the loss speed of each part in the crankcase is further reduced, and the service life of the air compressor is effectively prolonged.
Preferably, the air inlet is provided with a second one-way air inlet valve plate which is opened into the crankcase.
Through adopting above-mentioned technical scheme, gaseous back in letting in the crankcase with the air inlet play, when the connecting rod drives the piston in the compression chamber during from exhaust chamber side direction compression chamber one side motion, compression intracavity space is extruded, the increase of gas pressure in the crankcase, and the second check valve is closed, and the condition of effective less gas backward flow takes place, and then promotes the operating efficiency of breathing in.
Preferably, a separation blade is fixed to one side, which is axially away from the piston rod, of the piston, an air inlet is formed in the separation blade fixing cover, a plurality of first through holes are formed in the separation blade, the first one-way air inlet valve plate is fixed to one side, which is axially away from the piston rod, of the separation blade, and one-way air inlet valve plate is arranged at any one of the first through holes in a covering mode.
By adopting the technical scheme, the first one-way air inlet valve plate is covered at any through hole, the size of the single first one-way air inlet valve plate is reduced, the bearing capacity of the first one-way air inlet valve plate on the gas pressure in the compression cavity is increased, and the lifting range of the air compressor on the gas pressure is effectively expanded.
Preferably, a baffle is fixed on one side, away from the blocking piece, of the piston, of the first one-way air inlet valve plate, a plurality of first air outlet holes are formed in the baffle, and any one of the first air outlet holes is communicated with the first through hole.
Through adopting above-mentioned technical scheme, the baffle is used for prescribing a limit to the opening range of first one-way air inlet valve block, reduces to lead to the condition emergence that first one-way air inlet valve block drops from first through-hole department because of gas pressure is too big in the crankcase.
Preferably, a first avoidance groove is formed in the position, corresponding to any one of the first one-way air inlet valve plates, of the baffle, the bottom of the first avoidance groove is arc-shaped, and the first avoidance groove and the first air outlet are arranged at intervals.
By adopting the technical scheme, after the first one-way air inlet valve plate is opened, one side, deviating from the separation blade, of the first one-way air inlet valve plate abuts against the bottom of the first avoidance groove, the opening of the first one-way air inlet valve plate is opposite to the corresponding first through hole, compressed air is discharged into the exhaust cavity from the opening of the first one-way air inlet valve plate through the corresponding first through hole, and the discharging smoothness of the compressed air is effectively increased.
Preferably, a valve plate is arranged between the compression cavity and the exhaust cavity, a second through hole is formed in the valve plate, and the compression cavity is communicated with the exhaust cavity through the second through hole; the first one-way exhaust valve plate is arranged on one side, away from the blocking piece, of the valve plate, and one first one-way exhaust valve plate covers any one of the second through holes.
Through adopting above-mentioned technical scheme, separate compression chamber and exhaust chamber with the help of the valve plate, help promoting the fashioned convenience of one-level cylinder body machine to the convenience is installed first one-way exhaust valve piece.
Preferably, a lift limiter is further fixed on the valve plate, the lift limiter is arranged on one side, away from the valve plate, of the first one-way exhaust valve plate, a second air outlet hole is formed in the lift limiter, and the second air outlet hole is communicated with the second through hole.
By adopting the technical scheme, the lift limiter is used for limiting the opening range of the first one-way exhaust valve plate, and the situation that the first one-way exhaust valve plate falls off from the second through hole due to overlarge gas pressure in the compression cavity is reduced.
Preferably, a sealing groove is formed in the position, corresponding to the edge of the separation blade, of one side, axially departing from the crankcase, of the piston, a sealing ring is embedded in the sealing groove, and the bottom of the sealing groove is tightly abutted to the side wall of the separation blade.
Through adopting above-mentioned technical scheme, the sealing washer is used for sealing the position of installing the separation blade on the piston, reduces the condition emergence that compressed gas leaked from piston and separation blade junction among the air compressor machine operation process.
In summary, the present application includes at least one of the following beneficial technical effects:
the air inlet is formed in the crankcase, the air inlet is formed in the piston, and the first one-way air inlet valve plate is covered at the air inlet, so that the condition that heat, noise and the like are accumulated in the crankcase is effectively reduced, the loss speed of each part in the crankcase is reduced, and the service life of the air compressor is effectively prolonged;
the opening ranges of the first one-way air inlet valve plate and the second one-way air inlet valve plate are limited by the baffle plate arranged on the baffle plate and the lift limiter arranged on the valve plate, so that the condition that the first one-way air inlet valve plate and the second one-way air inlet valve plate fall off from the baffle plate and the valve plate due to overlarge gas pressure in a crankcase and a compression cavity is effectively reduced, and the normal operation of the air compressor is favorably ensured;
utilize seal groove and sealing washer to seal the piston, effectively reduce the compressed gas and take place from the condition that piston and separation blade junction leaked, help further guaranteeing the normal operating of air compressor machine.
Drawings
Fig. 1 is an axial schematic view of the piston air compressor according to the embodiment of the present application, which mainly shows the overall structure of the piston air compressor.
Fig. 2 is a sectional view of the piston type air compressor according to the embodiment of the present application, which mainly shows the overall structure of the piston type air compressor.
Fig. 3 is an enlarged view of a portion a in fig. 2, which mainly shows the installation position of the first one-way intake valve plate.
Fig. 4 is a partially enlarged schematic view mainly showing the opening position of the first air outlet in the embodiment of the present application.
Fig. 5 is an enlarged view of a portion B in fig. 2, which mainly shows the installation position of the first one-way vent valve plate.
Reference numerals: 1. a crankcase; 11. an air inlet; 12. a second one-way air inlet valve plate; 2. a primary cylinder body; 21. a compression chamber; 22. an exhaust chamber; 3. a piston; 31. an air inlet; 33. a sealing groove; 34. a seal ring; 4. a connecting rod; 5. a baffle plate; 51. a first through hole; 52. a first one-way air inlet valve plate; 6. a baffle plate; 61. a first avoidance slot; 62. a first air outlet hole; 7. a valve plate; 71. a second through hole; 72. a first one-way vent valve plate; 8. a lift limiter; 81. a second air outlet; 82. and a second avoidance groove.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses piston air compressor machine.
Referring to fig. 1 and 2, a piston air compressor comprises a crankcase 1 and a first-stage cylinder block 2 connected with the crankcase 1, wherein the first-stage cylinder block 2 is provided with a compression cavity 21 and an exhaust cavity 22 in sequence from one side of the crankcase 1 to the side away from the crankcase 1 along the self axial direction, and a first one-way exhaust valve plate 72 is arranged between the compression cavity 21 and the exhaust cavity 22 in the first-stage cylinder block 2; a piston 3 is adapted in the compression cavity 21, and a connecting rod 4 for pushing the piston 3 to reciprocate in the first-stage cylinder body 2 is arranged in the crankcase 1; the middle position of the piston 3 is provided with an air inlet 31 along the axial direction, a first one-way air inlet valve plate 52 is arranged on the piston 3 corresponding to the air inlet 31, an air inlet 11 is arranged on the crankcase 1 corresponding to the air inlet 31, and a second one-way air inlet valve plate 12 is arranged on the crankcase 1 at the position of the air inlet 11.
When the air compressor runs, gas is introduced into the crankcase 1 from the gas inlet 11, and the connecting rod 4 drives the piston 3 to do reciprocating linear motion in the compression cavity 21 along the axial direction of the piston 3; when the piston 3 moves from one side of the exhaust cavity 22 to one side of the crankcase 1, the second one-way air inlet valve plate 12 is closed, the air pressure in the crankcase 1 is increased, the first one-way exhaust valve plate 72 is opened, and air is introduced into the compression cavity 21 through the opening of the first one-way air inlet valve plate 52 and is positioned at one side of the piston 3, which is far away from the connecting rod 4, so that the air suction process is completed; when the piston 3 moves in the opposite direction, the first one-way air inlet valve plate 52 is closed, and the gas in the space of the compression cavity 21 on the side of the piston 3 departing from the connecting rod 4 is compressed to perform a compression process; along with the reciprocating motion of the piston 3 in the compression cavity 21, the gas pressure in the space of the compression cavity 21 on the side of the piston 3 away from the connecting rod 4 continuously rises, and when the gas pressure in the space of the compression cavity 21 on the side of the piston 3 away from the connecting rod 4 rises to be slightly greater than the gas pressure in the exhaust cavity 22, the first one-way exhaust valve sheet 72 is opened, compressed air is exhausted into the exhaust cavity 22, and then the exhaust process is completed.
Referring to fig. 3 and 4, in order to facilitate the installation of the first one-way air inlet valve plate 52, a blocking piece 5 is fixed on one side of the piston 3, which is axially away from the piston 3 rod, the blocking piece 5 is arranged in the air inlet 31, the blocking piece 5 is fixedly covered with the air inlet 31, a plurality of first through holes 51 are axially formed in the blocking piece 5 along the axial direction of the blocking piece, the first one-way air inlet valve plate 52 is fixed on one side of the blocking piece 5, which is away from the piston 3 rod, and one first one-way air inlet valve plate 52 is installed at any one first through hole 51; in order to reduce the leakage of compressed gas from the joint of the end face of the piston 3 and the baffle 5, a sealing groove 33 is formed in the end face of the piston 3, which is close to the baffle 5 in the axial direction, the sealing groove 33 is arranged corresponding to the edge of the baffle 5, a sealing ring 34 is embedded in the sealing groove 33, and the two sides of the sealing ring 34 are respectively abutted against the bottom of the sealing groove 33 and the side wall of the baffle 5.
Meanwhile, a baffle 6 is arranged on one side, close to the first one-way air inlet valve plate 52, of the baffle 5, the baffle 6 is fixed on one side, away from the baffle 5, of the first one-way air inlet valve plate 52, and the baffle 6 and the baffle 5 are arranged in parallel at intervals; a plurality of first avoiding grooves 61 are formed in one side, close to the blocking piece 5, of the baffle 6, and the first avoiding grooves 61 correspond to the first one-way air inlet valve plates 52 one by one; the bottom wall of the first avoiding groove 61 is arc-shaped, and when the first one-way air inlet valve plate 52 is opened, one side of the first one-way air inlet valve plate 52 close to the first avoiding groove 61 abuts against the bottom wall of the first avoiding groove 61; in addition, baffle 6 is gone up and is run through along self axis and has been seted up first venthole 62, and first venthole 62 is the interval with first groove 61 of dodging and sets up.
When the gas pressure in the crankcase 1 is greater than the gas pressure in the compression cavity 21, the first one-way air inlet valve plate 52 is opened towards one side of the compression cavity 21, and the valve plate of the first one-way air inlet valve plate 52 abuts against the bottom of the corresponding first avoidance groove 61; at this time, the opening of the first one-way intake valve plate 52 faces the corresponding first air outlet 62, and the compression cavity 21 forms a smooth passage between the crankcase 1 and the compression cavity 21 through the opening of the first one-way intake valve plate 52 and the first air outlet 62, so that the gas in the crankcase 1 can be discharged into the compression cavity 21 quickly.
Referring to fig. 4 and 5, in order to conveniently mount the first one-way exhaust valve plate 72, the valve plate 7 is mounted between the compression chamber 21 and the exhaust chamber 22, a plurality of second through holes 71 are formed in the valve plate 7, and the compression chamber 21 is communicated with the exhaust chamber 22 through the second through holes 71; the first one-way exhaust valve plates 72 are arranged on one side, away from the baffle 5, of the valve plate 7, and the first one-way exhaust valve plates 72 correspond to the second through holes 71 one by one; the valve plate 7 is further fixed with a lift limiter 8, the lift limiter 8 is arranged on one side, away from the valve plate 7, of the first one-way exhaust valve plate 72, a second air outlet hole 81 is formed in the lift limiter 8, and the second air outlet hole 81 is communicated with the second through hole 71.
In order to increase the smoothness of the compressed gas discharged from the compression cavity 21 into the exhaust cavity 22, the second avoiding grooves 82 are formed in one side, close to the valve plate 7, of the lift limiter 8, the second avoiding grooves 82 are arranged corresponding to the first one-way exhaust valve plate 72, and the second avoiding grooves 82 are arranged at intervals with the second through holes 71; the bottoms of the second avoiding grooves 82 are all arc-shaped, when the first one-way exhaust valve plate 72 is opened, one side, close to the lift limiter 8, of the first one-way exhaust valve plate 72 abuts against the bottom wall of the second avoiding groove 82, and the opening of the first one-way exhaust valve plate 72 faces the second through hole 71.
The implementation principle of piston air compressor machine of the embodiment of this application does: when the air compressor runs, gas is introduced into the crankcase 1 from the gas inlet 11, and the connecting rod 4 drives the piston 3 to do reciprocating linear motion in the compression cavity 21 along the axial direction of the piston 3; when the piston 3 moves from one side of the exhaust cavity 22 to one side of the crankcase 1, the second one-way air inlet valve plate 12 is closed, the first one-way exhaust valve plate 72 is opened, and air is exhausted into the compression cavity 21 through the opening of the first one-way air inlet valve plate 52 and the first air outlet hole 62 and is positioned at one side of the piston 3, which is far away from the connecting rod 4, so that the air suction process is finished; when the piston 3 moves in the opposite direction, the first one-way inlet valve plate 52 is closed, and the gas in the compression cavity 21 on the side of the piston 3 away from the connecting rod 4 is compressed, so that the compression process is performed.
Along with the reciprocating motion of the piston 3 in the compression cavity 21, the pressure intensity of the gas in the compression cavity 21 at the side of the piston 3 away from the connecting rod 4 is continuously increased, when the pressure intensity of the gas in the compression cavity 21 at the side of the piston 3 away from the connecting rod 4 is increased to be slightly larger than the pressure intensity of the gas in the exhaust cavity 22, the first one-way exhaust valve plate 72 is opened, and the compressed air is exhausted into the exhaust cavity 22 through the second air outlet 81, so that the exhaust process is completed. By adopting the mode, the accumulation of heat, noise and the like in the crankcase 1 and the primary cylinder body 2 is effectively reduced, meanwhile, the pressure born by the side wall of the primary cylinder body 2 and the piston 3 during the operation of the air compressor is reduced, the loss speed of each part in the crankcase 1 and the primary cylinder body 2 is effectively reduced, and the service life of the air compressor is further prolonged.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a piston air compressor machine, includes crankcase (1) and one-level cylinder body (2) be connected with crankcase (1), the adaptation has piston (3) in one-level cylinder body (2), install connecting rod (4) that are used for promoting piston (3) reciprocating motion on piston (3), its characterized in that: the first-stage cylinder body (2) is sequentially provided with a compression cavity (21) and an exhaust cavity (22) from one side of the connecting rod (4) to one side of the connecting rod (4) away from the connecting rod along the axial direction of the first-stage cylinder body (2), the exhaust cavity (22) is positioned on one side of the first-stage cylinder body (2) away from the connecting rod (4) in the axial direction, a first one-way exhaust valve plate (72) is arranged between the compression cavities (21) in the exhaust cavity (22), an air inlet hole (31) is formed in the middle of the piston (3), and a first one-way air inlet valve plate (52) is fixedly covered on one side of the air inlet hole (31) away from the connecting rod (4); and an air inlet (11) is formed in the side wall of the crankcase (1) at a position corresponding to the air inlet through hole.
2. The piston air compressor as claimed in claim 1, wherein: and a second one-way air inlet valve plate (12) is arranged at the air inlet (11).
3. The piston air compressor as claimed in claim 1, wherein: one side that piston (3) axial deviates from piston (3) pole is fixed with separation blade (5), inlet port (31) are established to separation blade (5) fixed cover, a plurality of first through-holes (51) have been seted up on separation blade (5), first one-way air inlet valve block (52) are fixed in one side that separation blade (5) deviate from piston (3) pole, just first one-way air inlet valve block (52) all cover in arbitrary first through-hole (51) department and are equipped with one.
4. A piston air compressor as claimed in claim 3, wherein: one side of the piston (3) which is located at the position where the first one-way air inlet valve plate (52) deviates from the baffle (5) is fixed with a baffle (6), the baffle (6) is provided with a plurality of first air outlet holes (62), and any one of the first air outlet holes (62) is communicated with the first through hole (51).
5. The piston air compressor as claimed in claim 4, wherein: the baffle (6) are provided with a first avoiding groove (61) corresponding to the position of any one of the first one-way air inlet valve plates (52), the bottom of the first avoiding groove (61) is arc-shaped, and the first avoiding groove (61) and the first air outlet (62) are arranged at intervals.
6. The piston air compressor as claimed in claim 1, wherein: a valve plate (7) is arranged between the compression cavity (21) and the exhaust cavity (22), a second through hole (71) is formed in the valve plate (7), and the compression cavity (21) is communicated with the exhaust cavity (22) through the second through hole (71); the first one-way exhaust valve plate (72) is arranged on one side, away from the blocking piece (5), of the valve plate (7), and one first one-way exhaust valve plate (72) is arranged at any one of the second through holes (71) in a covering mode.
7. The piston air compressor as claimed in claim 6, wherein: still be fixed with lift limiter (8) on valve plate (7), lift limiter (8) set up in one side that first one-way exhaust valve piece (72) deviate from valve plate (7), second venthole (81) have been seted up on lift limiter (8), second venthole (81) and second through-hole (71) intercommunication.
8. The piston air compressor as claimed in claim 1, wherein: seal groove (33) have been seted up to the position that one side that piston (3) axial deviates from crankcase (1) corresponds separation blade (5) edge, seal groove (33) are embedded to be equipped with sealing washer (34), sealing washer (34) support tight seal groove (33) tank bottom and separation blade (5) lateral wall setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634662.6U CN215170646U (en) | 2021-07-17 | 2021-07-17 | Piston type air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121634662.6U CN215170646U (en) | 2021-07-17 | 2021-07-17 | Piston type air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN215170646U true CN215170646U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121634662.6U Active CN215170646U (en) | 2021-07-17 | 2021-07-17 | Piston type air compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263723A (en) * | 2022-08-25 | 2022-11-01 | 瑞立集团瑞安汽车零部件有限公司 | Cylinder body, air compressor and commercial car |
-
2021
- 2021-07-17 CN CN202121634662.6U patent/CN215170646U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263723A (en) * | 2022-08-25 | 2022-11-01 | 瑞立集团瑞安汽车零部件有限公司 | Cylinder body, air compressor and commercial car |
| CN115263723B (en) * | 2022-08-25 | 2024-01-30 | 瑞立集团瑞安汽车零部件有限公司 | Cylinder body, air compressor and commercial vehicle |
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Address after: 201100 building 6, No.36 and 100, Lane 2868, Sanlu highway, Pujiang Town, Minhang District, Shanghai Patentee after: Shanghai Yusheng Compression Machinery Co.,Ltd. Address before: 201100 building 6, No.36 and 100, Lane 2868, Sanlu highway, Pujiang Town, Minhang District, Shanghai Patentee before: SHANGHAI YUSHENG COMPRESSION MACHINERY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |