CN214577588U - Miniature oil-free air compressor - Google Patents
Miniature oil-free air compressor Download PDFInfo
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- CN214577588U CN214577588U CN202120346471.3U CN202120346471U CN214577588U CN 214577588 U CN214577588 U CN 214577588U CN 202120346471 U CN202120346471 U CN 202120346471U CN 214577588 U CN214577588 U CN 214577588U
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Abstract
The utility model discloses a micro oilless air compressor, which comprises a motor, a cylinder sleeve, a cylinder seat, a valve plate, a cylinder cover, an eccentric wheel and a piston, the piston is provided with a bearing body matched with the eccentric wheel, the eccentric wheel is provided with a shaft hole matched with a rotor shaft of the motor, the eccentric wheel is provided with a positioning hole, a jackscrew body used for fixing a rotor shaft of the motor is inserted into the positioning hole, the piston comprises a head part and a rod part fixedly connected with the head part, the top surface of the head part is provided with an inclined plane which corresponds to the air inlet valve plate of the valve and can form a space avoiding position with the valve plate when in work, an open slot matched with the cylinder sleeve is arranged on the cylinder seat and forms a C-shaped structure, a tooth edge body for supporting the cylinder sleeve is arranged on the slot wall of the open slot, and the valve plate and the cylinder cover are both connected with the cylinder seat through bolts; this miniature oil-free air compressor can effectually avoid the valve can strike the condition of piston when the air inlet process is opened.
Description
Technical Field
The utility model relates to a miniature oilless air compressor.
Background
Oil-free miniature air compressor belongs to air compression machinery, and oil-free air compressor need not to carry out the oiling lubrication to the piston, mainly satisfies life reliability by self-lubricating material's characteristic. The design of a sealing structure, a part matching structure, a material and the like is more exquisite. The sealing of the cylinder piston is realized, and the sealing is only realized by cylindrical surface or plane contact. The opening of the air inlet valve is not designed to be opened to a height clearance, the valve can knock a pressing plate of a piston when the air inlet process is opened, knocking sound is generated and the service life of the valve is influenced, meanwhile, a traditional air cylinder seat is solid and heavy, is not beneficial to aluminum alloy pressure casting, is easy to generate air holes and sand holes, influences the strength of a machine shell, and also increases useless material cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a can effectually avoid the valve can strike the miniature oil-free air compressor of the condition of piston when the air inlet process is opened.
In order to solve the above problem, the utility model adopts the following technical scheme:
a micro oilless air compressor comprises a motor, a cylinder sleeve, a cylinder seat, a valve plate, a cylinder cover, an eccentric wheel and a piston, wherein a bearing body matched with the eccentric wheel is arranged on the piston, the piston and the eccentric wheel are connected through the bearing body in a rotating mode, a shaft hole matched with a rotor shaft of the motor is formed in the eccentric wheel, a positioning hole is formed in the eccentric wheel, a jackscrew body used for fixing the rotor shaft of the motor is inserted into the positioning hole, the piston comprises a head and a rod portion fixedly connected with the head, the top surface of the head is provided with an inclined plane which corresponds to a valve air inlet valve block and can form a clearance space with the valve block during working, an open slot matched with the cylinder sleeve is formed in the cylinder seat and forms a C-shaped structure, a tooth edge body used for supporting the cylinder sleeve is arranged on the slot wall of the open slot, and the head is inserted into the cylinder sleeve, the valve plate and the cylinder cover are both connected with a cylinder block through bolts, the cylinder sleeve is fixedly connected with a motor, and a rotor shaft of the motor is provided with fan blades.
Preferably, the middle part of the top surface of the head part is provided with a tapered hole, the bottom of the tapered hole is provided with a first screw hole, the rod part is provided with a second screw hole corresponding to the first screw hole, a connecting bolt is inserted into the conical hole, the connecting bolt is screwed into the first screw hole and the second screw hole in sequence, the rod part is provided with a groove, the back of the head part is provided with a convex part matched with the groove, the groove is internally provided with a first sealing rubber ring, the convex part and the groove are sealed by a first sealing rubber ring, a leather cup is arranged between the head part and the rod part, the contact part of the back of the head part and the leather cup is provided with an annular pressing rib, the rod part is provided with an annular groove, the annular ribbing is located directly over the annular groove, and the leakproofness is good between head and the pole portion, disposes the leather cup simultaneously, can promote the stability between head and the cylinder jacket.
Preferably, the gear body is provided with more than one gear body, a first flow channel is formed between the gear bodies, a web plate is arranged in the cylinder seat, the web plate is fixedly connected with the cylinder seat, a second flow channel and a bearing chamber are arranged on the web plate, the second flow channel is distributed in an annular array mode by taking the bearing chamber as a center, a connecting lug body and a connecting footing are arranged on the cylinder seat, the connecting lug body and the connecting footing are fixedly connected with the cylinder seat, a mounting hole, an air chamber and an exhaust hole are formed in the cylinder seat, the exhaust hole is communicated with the air chamber, a U-shaped wire hole is formed in one side of the cylinder seat, and the heat dissipation of the motor is facilitated by the arrangement of the flow channels.
Preferably, a mesh enclosure is arranged on one side of the cylinder sleeve, a dovetail is arranged on the mesh enclosure, a dovetail groove matched with the dovetail is arranged in the air cavity, a buckle is arranged on the mesh enclosure, a clamping piece matched with the buckle is arranged on the air cylinder seat, the clamping piece and the air cylinder seat are arranged in an integrated mode, the fan blade is located in the air cavity, and a good protection effect can be achieved by arranging the mesh enclosure.
Preferably, the valve plate is provided with an annular groove matched with the cylinder sleeve, the valve plate and the cylinder sleeve are positioned through the annular groove, a second rubber sealing ring is arranged in the annular groove, and a good sealing effect is achieved between the valve plate and the cylinder sleeve.
Preferably, an intake chamber and an exhaust chamber are formed between the cylinder cover and the valve plate, an intake valve paired with the intake chamber is provided on the cylinder cover, and an exhaust valve paired with the exhaust chamber is provided on the cylinder cover.
The utility model has the advantages that: because the valve air inlet valve block on inclined plane and the valve plate part corresponds, form and keep away the vacancy, effectively avoid the valve block to strike the clamp plate, thereby reduce the noise, avoid appearing causing the condition of life-span decline because of strikeing, and through setting up the cylinder block into C type hollow structure, and the structure that has adopted the tooth limit body is held, through the model simulation, the structure of cylinder block has been simplified under the prerequisite of assurance intensity, and because the structure of cylinder block is simplified, be favorable to adopting aluminum alloy pressure casting, compare with the traditional cylinder block that adopts cast iron to make, influence intensity such as gas pocket sand hole can not produce.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a three-dimensional exploded view of a micro oilless air compressor of the present invention.
Fig. 2 is the schematic view of the local structure of a micro oilless air compressor of the present invention.
Fig. 3 is a schematic structural diagram of a piston of a micro oilless air compressor of the present invention.
Fig. 4 is a perspective view of a piston of a micro oilless air compressor according to the present invention.
Fig. 5 is a sectional view of a piston of a micro oilless air compressor according to the present invention.
Fig. 6 is a partial sectional view of a piston of a micro oilless air compressor according to the present invention.
Fig. 7 is a partial sectional view of a piston of a micro oilless air compressor according to the present invention.
Fig. 8 is a schematic structural view of a cylinder block of a micro oilless air compressor of the present invention.
Fig. 9 is a schematic structural view of a cylinder block of a micro oilless air compressor of the present invention.
Fig. 10 is a schematic structural view of a cylinder block of a micro oilless air compressor according to the present invention.
Fig. 11 is a schematic structural view of a cylinder block of a micro oilless air compressor of the present invention.
Fig. 12 is a schematic structural view of a cylinder block of a micro oilless air compressor according to the present invention.
Fig. 13 is a cross-sectional view of a cylinder block of a micro oilless air compressor according to the present invention.
Fig. 14 is a partial sectional view of a micro oilless air compressor according to the present invention.
In the figure:
1. a motor; 2. a cylinder liner; 3. a cylinder block; 4. a valve plate; 5. a cylinder head; 6. an eccentric wheel; 7. a piston; 8. a bearing body; 9. a head portion; 10. a rod portion; 11. a bevel; 12. an open slot; 13. a tooth edge body; 14. a fan blade; 15. a tapered hole; 16. a connecting bolt; 17. a groove; 18. a projection; 19. a first sealing rubber ring; 20. a leather cup; 21. annular ribbing; 22. An annular groove; 23. a first flow passage; 24. a web; 25. a second flow passage; 26. a bearing chamber; 27. A connecting ear body; 28. connecting bottom feet; 29. mounting holes; 30. a gas chamber; 31. an exhaust hole; 32. a U-shaped wire hole; 33. a dovetail groove; 34. a clamping piece; 35. an intake valve; 36. an exhaust valve; 37. avoiding the vacancy.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a conventional manner such as bolt fixing, pin shaft connecting, adhesive fixing, or rivet fixing, which is commonly used in the prior art, and therefore, the detailed description thereof will not be provided in the examples.
Example 1
As shown in fig. 1-12, a micro oil-free air compressor comprises a motor 1, a cylinder sleeve 2, a cylinder block 3, a valve plate 4, a cylinder cover 5, an eccentric wheel 6 and a piston 7, wherein the piston 7 is provided with a bearing body 8 matched with the eccentric wheel 6, the piston 7 is rotatably connected with the eccentric wheel 6 through the bearing body 8, the eccentric wheel 6 is provided with a shaft hole (not shown) matched with a rotor shaft of the motor 1, the eccentric wheel is provided with a positioning hole (not shown), a jackscrew (not shown) for fixing the rotor shaft of the motor 1 is inserted into the positioning hole, the piston 7 comprises a head 9 and a rod part 10 fixedly connected with the head 9, the top surface of the head 9 is provided with an inclined plane 11 corresponding to a valve air inlet valve plate and capable of forming a vacancy 37 with the valve plate when working, the cylinder block 3 is provided with an open slot 12 matched with the cylinder sleeve 2 and forms a C-shaped structure, the wall of the open slot 12 is provided with a tooth edge body 13 for supporting the cylinder sleeve 2, the head 9 is inserted into the cylinder sleeve 2, the valve plate 4 and the cylinder cover 5 are both connected with the cylinder block 3 through bolts, the cylinder sleeve 2 is fixedly connected with the motor 1, and a rotor shaft of the motor 1 is provided with a fan blade 14.
In this embodiment, a tapered hole 15 is provided in the middle of the top surface of the head portion 9, a first screw hole (not shown) is provided on the bottom of the tapered hole 15, a second screw hole corresponding to the first screw hole is provided on the rod portion 10, a connecting bolt 16 is inserted into the tapered hole 15, the connecting bolt 16 is sequentially screwed into the first screw hole and the second screw hole, a groove 17 is provided on the rod portion 10, a protruding portion 18 matching with the groove is provided on the back surface of the head portion 9, a first sealing rubber ring 19 is provided in the groove 17, the protruding portion 18 and the groove 17 are sealed by the first sealing rubber ring 19, a leather cup 20 is provided between the head portion 9 and the rod portion 10, an annular bead 21 is provided at the contact position of the back surface of the head portion 9 and the leather cup 20, an annular groove 22 is provided on the rod portion 10, the annular bead 21 is located right above the annular groove 22, the head part 9 and the rod part 10 have good sealing performance, and the leather cup 20 is arranged at the same time, so that the stability between the head part 9 and the cylinder sleeve 2 can be improved.
In this embodiment, the number of the gear body 13 is more than one, a first flow channel 23 is formed between the gear bodies 13, a web 24 is arranged in the cylinder block 3, the web 24 is fixedly connected with the cylinder block 3, a second flow channel 25 and a bearing chamber 26 are arranged on the web 24, the second flow channel 25 is distributed in an annular array by taking the bearing chamber 26 as a center, a connecting lug body 27 and a connecting footing 28 are arranged on the cylinder block 3, the connecting lug body 27 and the connecting footing 28 are both fixedly connected with the cylinder block 3, a mounting hole 29, an air chamber 30 and an exhaust hole 31 are arranged on the cylinder block 3, the exhaust hole 31 is communicated with the air chamber 30, and a U-shaped line hole 32 is arranged on one side of the cylinder block 3, so that the heat dissipation of the motor is facilitated by the arrangement of the flow channels.
In this embodiment, a mesh enclosure (not shown) is disposed on one side of the cylinder liner 2, a dovetail (not shown) is disposed on the mesh enclosure, a dovetail groove 33 matched with the dovetail is disposed in the air chamber 30, a buckle (not shown) is disposed on the mesh enclosure, a clamping piece 34 matched with the buckle is disposed on the cylinder block 3, the clamping piece 34 and the cylinder block 3 are integrally disposed, and the fan blade 14 is located in the air chamber 30 and can achieve a good protection effect by being provided with the mesh enclosure.
In this embodiment, an annular groove (not shown) paired with the cylinder liner 2 is formed in the valve plate 4, the valve plate 4 and the cylinder liner are positioned by the annular groove, a second rubber sealing ring (not shown) is arranged in the annular groove, and a good sealing effect is achieved between the valve plate and the cylinder liner.
In the present embodiment, an intake chamber (not shown) and an exhaust chamber (not shown) are formed between the cylinder head 5 and the valve plate 4, the cylinder head is provided with an intake valve 35 that mates with the intake chamber, and the cylinder head 5 is provided with an exhaust valve 36 that mates with the exhaust chamber.
The utility model has the advantages that: because the valve air inlet valve block on inclined plane and the valve plate part corresponds, form and keep away the vacancy, effectively avoid the valve block to strike the clamp plate, thereby reduce the noise, avoid appearing causing the condition of life-span decline because of strikeing, and through setting up the cylinder block into C type hollow structure, and the structure that has adopted the tooth limit body is held, through the model simulation, the structure of cylinder block has been simplified under the prerequisite of assurance intensity, and because the structure of cylinder block is simplified, be favorable to adopting aluminum alloy pressure casting, compare with the traditional cylinder block that adopts cast iron to make, influence intensity such as gas pocket sand hole can not produce.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention.
Claims (6)
1. A micro oilless air compressor comprises a motor, a cylinder sleeve, a cylinder seat, a valve plate, a cylinder cover, an eccentric wheel and a piston, wherein a bearing body matched with the eccentric wheel is arranged on the piston, the piston and the eccentric wheel are connected through the bearing body in a rotating mode, a shaft hole matched with a rotor shaft of the motor is formed in the eccentric wheel, a positioning hole is formed in the eccentric wheel, a jackscrew body used for fixing the rotor shaft of the motor is inserted into the positioning hole, the piston comprises a head and a rod portion fixedly connected with the head, the top surface of the head is provided with an inclined plane which corresponds to a valve air inlet valve block and can form a clearance space with the valve block during working, an open slot matched with the cylinder sleeve is formed in the cylinder seat and forms a C-shaped structure, a tooth edge body used for supporting the cylinder sleeve is arranged on the slot wall of the open slot, and the head is inserted into the cylinder sleeve, the valve plate and the cylinder cover are both connected with a cylinder block through bolts, the cylinder sleeve is fixedly connected with a motor, and a rotor shaft of the motor is provided with fan blades.
2. A micro oil-free air compressor as claimed in claim 1, wherein: the improved structure of the rubber cap is characterized in that a conical hole is formed in the middle of the top surface of the head, a first screw hole is formed in the bottom of the conical hole, a second screw hole corresponding to the first screw hole is formed in the rod, a connecting bolt is inserted into the conical hole and sequentially screwed into the first screw hole and the second screw hole, a groove is formed in the rod, a protruding portion which is matched with the groove is formed in the back surface of the head, a first sealing rubber ring is arranged in the groove, the protruding portion and the groove are sealed through the first sealing rubber ring, a rubber cup is arranged between the head and the rod, an annular pressing rib is arranged at the contact position of the back surface of the head and the rubber cup, an annular groove is formed in the rod, and the annular pressing rib is located right above the annular groove.
3. A micro oil-free air compressor as claimed in claim 2, wherein: the improved air cylinder is characterized in that the gear bodies are more than one, a first flow channel is formed between the gear bodies, a web plate is arranged in the air cylinder seat, the web plate is fixedly connected with the air cylinder seat, a second flow channel and a bearing chamber are arranged on the web plate, the second flow channel is distributed in an annular array mode by taking the bearing chamber as a center, a connecting lug body and a connecting bottom foot are arranged on the air cylinder seat, the connecting lug body and the connecting bottom foot are fixedly connected with the air cylinder seat, a mounting hole, an air chamber and an exhaust hole are formed in the air cylinder seat, the exhaust hole is communicated with the air chamber, a U-shaped wire hole is formed in one side of the air cylinder seat, and the fan blade is located in the air chamber.
4. A micro oil-free air compressor as claimed in claim 3, wherein: the improved cylinder cover is characterized in that a mesh cover is arranged on one side of the cylinder sleeve, a dovetail joint is arranged on the mesh cover, a dovetail groove matched with the dovetail joint is arranged in the air cavity, a buckle is arranged on the mesh cover, a clamping piece matched with the buckle is arranged on the cylinder block, and the clamping piece and the cylinder block are arranged in an integrated mode.
5. A micro oil-free air compressor as claimed in claim 4, wherein: the valve plate is provided with an annular groove matched with the cylinder sleeve, the valve plate and the cylinder sleeve are positioned through the annular groove, and a second rubber sealing ring is arranged in the annular groove.
6. A micro oil-free air compressor as claimed in claim 5, wherein: an air inlet chamber and an air outlet chamber are formed between the cylinder cover and the valve plate, an air inlet valve matched with the air inlet chamber is arranged on the cylinder cover, and an air outlet valve matched with the air outlet chamber is arranged on the cylinder cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120346471.3U CN214577588U (en) | 2021-02-05 | 2021-02-05 | Miniature oil-free air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120346471.3U CN214577588U (en) | 2021-02-05 | 2021-02-05 | Miniature oil-free air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214577588U true CN214577588U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120346471.3U Active CN214577588U (en) | 2021-02-05 | 2021-02-05 | Miniature oil-free air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214577588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151336A (en) * | 2021-12-17 | 2022-03-08 | 陈忠标 | Air compressor of oxygen generation and oxygen cabin system |
-
2021
- 2021-02-05 CN CN202120346471.3U patent/CN214577588U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151336A (en) * | 2021-12-17 | 2022-03-08 | 陈忠标 | Air compressor of oxygen generation and oxygen cabin system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Linbin Inventor after: Liang Guoliang Inventor before: Yang Linbin |
|
| CB03 | Change of inventor or designer information |