CN2748708Y - Funnel-shaped oil-free lubricating air compressor connecting rod piston - Google Patents
Funnel-shaped oil-free lubricating air compressor connecting rod piston Download PDFInfo
- Publication number
- CN2748708Y CN2748708Y CN 200420045395 CN200420045395U CN2748708Y CN 2748708 Y CN2748708 Y CN 2748708Y CN 200420045395 CN200420045395 CN 200420045395 CN 200420045395 U CN200420045395 U CN 200420045395U CN 2748708 Y CN2748708 Y CN 2748708Y
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- CN
- China
- Prior art keywords
- connecting rod
- piston head
- leather cup
- piston
- air compressor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a funnel-shaped oil-free lubricating air compressor connecting rod piston, comprising a connecting rod assembly and a piston head connected with the connecting rod assembly. The utility model is characterized in that the connecting rod assembly comprises a circular thimble with embeded shaft bearing; the piston head and the circular thimble are connected through a cone-shaped funnel rod; the top plane of the piston head is provided with a circular flange; a loaded leather cup is fixed at the upper part of the piston head through a fastening screw and the press plate of the leather cup; the bottom surface of the press plate of the leather cup is matched with the concave surface of the upper part of the piston head. The structure is beneficial to resist the piston force, to strengthen the fatigue strength of the connecting rod, to enhance the reliability of the compressor. The utility model has the advantages of easy manufacturing and easy installation.
Description
Technical field
The utility model is applicable to the connecting rod piston of non-lubricated air compressor.
Background technique
Pendulum type piston rod compressor is a kind of more old-fashioned and practical compressor compresses gas drive manner; It is applied to air compressor and vacuum pump field usually.As application number be 96244010, the applying date is that November 14, denomination of invention in 1996 are the patent application of the employed piston of air compressor, it comprises bolt, air inlet sheet, whorl, piston head, airtight plate, airtight plate pad, piston guide rod, it is characterized in that external thread length is fixed on the described bolt; Described air inlet sheet is flat disk, and there is a circular hole in central authorities, and periphery is established several inlet holes; Described whorl is a helical spring; Described piston head is with the integrated piston head of Furtulon (TEFLON) material, have interior circular groove and hollow wall, the nose circle face that upper and lower two different-diameters are arranged, outer wall is the inclined-plane slightly, the air inlet sheet lies in piston head hollow wall top, whorl is embedded in the interior circular groove of piston head, keeps a gap between the bottom of piston head and the top plan of piston guide rod, places an airtight plate and airtight plate pad in the gap; Described airtight plate is the disk that the very high elastic material of fatigue resistance is made, and central authorities establish a circular hole, and normality is recessed curved arc shape; Described airtight plate pad is a flat disk, and central authorities establish a circular hole, places the airtight plate bottom; Described piston guide rod is with bolt air inlet sheet, piston head, airtight plate and airtight plate pad all to be locked in the top protuberance.The defective of said structure is, complex structure, and inconvenience, rate of fault height are installed in assembling.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned connecting rod piston complex structure, the deficiency inconvenient, that rate of fault is high is installed in assembling, and provide a kind of intake efficiency height, sound construction, processing simple, the connecting rod piston of easy for installation, reliable non-lubricated air compressor.
The utility model is realized above-mentioned purpose by following proposal: this funnel shaped non-lubricated air compressor connecting rod piston is made of with the piston head that is connected with link assembly link assembly, link assembly comprises the circular capel of inlaying bearing in one, and piston head and circular capel link together by the conical hopper bar; The plane, top of piston head is provided with round flange, and piston head top is fixed with by screw, leather cup pressing plate and compresses leather cup, and the bottom surface of leather cup pressing plate cooperates with the concave surface on piston head top and adapts.
As the further improvement of such scheme, conical hopper bar of the present utility model also is provided with plurality of strengthening ribs outward; This stiffening rib links together circular capel, conical hopper bar and piston head.
The top of described leather cup pressing plate is a plane, forms a compression chamber between it and the cylinder cover inner hole bottom surface; There is a conical surface hole at the middle part of leather cup pressing plate, and this conical surface hole contacts with the screw head conical surface of fastening screw trip bolt;
Described conical hopper bar is the V-shape structure, and inside is solid construction; Piston head also is the V-shape structure, and the centre is a hollow-core construction;
Leather cup is an annulus, and circle is corresponding with the cylindrical of leather cup pressing plate bottom in it.
Advantage of the present utility model is:
1, by pressing plate pressure type leather cup assembling and circular capel with bearing fixing on connecting rod; By conical hopper and stiffening rib piston bucket and circular capel are linked together, the structure of this conical hopper bar helps resisting piston force, and increases the fatigue strength of connecting rod, increases the reliability of compressor.
2, connecting rod and bearing be will be when injection moulding in the lump pressure injection come out, utilize the circular capel of connecting rod that bearing is tightly fixed on the connecting rod.Processing is simple, and is easy for installation.
3, there is round flange on the plane, top of piston head, the effect of this flange is to prevent that after the leather cup pressing plate compresses leather cup loosening phenomenon from appearring in leather cup when motion, there is a conical surface hole at the middle part of leather cup pressing plate simultaneously, this conical surface hole contacts with the screw head conical surface of tapping screw, increase lifting surface area, make tapping screw press very tightly, more reliable.Thereby the utility model structure is more firm.
Description of drawings:
Fig. 1 is the assembling perspective view of the utility model piston rod;
Fig. 2 is the sectional arrangement drawing of the utility model piston rod and cylinder liner, cylinder head;
Fig. 3 is the assembling sectional structure schematic representation of the utility model piston rod.
Specific embodiment
As shown in Figure 1-Figure 3, the utility model funnel shape connecting rod piston is made of with the piston head 7 that is connected with link assembly link assembly 20, piston top is provided with leather cup 15, it is combined itself and connecting rod 20 by T type leather cup pressing plate 3, its working principle is to drive eccentric wheel by electric motor to rotatablely move, thereby by bearing connection eccentric wheel and connecting rod the connecting rod piston assembly is pumped along cylinder liner internal wall, the pressurized gas acting.
Specifying of piston connecting rod structure of the present utility model is as follows:
Piston rod part is specifically by forming with lower member: the composition of connecting rod (20) is shock-resistant, resistant to elevated temperatures a kind of new polyester engineering plastics, and the composition of connecting rod (20) comprises a circular capel (9); It is inlaying a bearing (10) inside, and this structure directly once creates when injection moulding, has not still made things convenient for assembling like this, and has guaranteed concentricity and perpendicularity; Conical hopper bar (11) and stiffening rib (8) link together piston head (7) and circular capel (9), can help resisting piston force like this and increase connecting rod strength; This conical hopper bar (11) is a V-shape structure, is inside solid construction; Piston head (7) also is a V-shape structure, the centre is a hollow-core construction, the similar shrinkage pool (14) of (16) shape size bottom leather cup pressing plate (3), shrinkage pool (14) bottom surface is a plane, there is a circular hole (6) centre, this hole is that tapping screw (1) usefulness is installed, there are two round flanges (12) and (13) in the plane, top of piston head, the effect of these two flanges is to prevent that after leather cup pressing plate (3) compresses leather cup (15) loosening phenomenon from appearring in leather cup (15) when motion, thereby influences the performance of compressor.
Leather cup (15) is an annulus, and interior circle (4) is corresponding with the cylindrical (21) of leather cup pressing plate bottom, is convenient to install, and leather cup cylindrical (5) is to design its size according to piston in the pivot angle and the sealing of cylinder liner internal wall; The top of leather cup pressing plate (3) also is a plane, forms a compression chamber (100) between it and the cylinder cover inner hole bottom surface, and compression chamber (100) is located in the compression support 19, as shown in Figure 2; There is a conical surface hole (2) at the middle part of leather cup pressing plate (3), and this conical surface hole (2) contacts with the screw head conical surface (18) of tapping screw (1), increases lifting surface area, makes tapping screw (1) press very tightly, more reliable.
The assemblying body that piston rod links together leather cup pressing plate (3), leather cup (15) and link assembly (20) by tapping screw (1) exactly.
Claims (6)
1, a kind of novel funnel shaped non-lubricated air compressor connecting rod piston, constitute with the piston head that is connected with link assembly by link assembly, it is characterized in that this link assembly comprises the circular capel of inlaying bearing in one, piston head and circular capel link together by the conical hopper bar; The plane, top of piston head is provided with round flange, and piston head top is fixed with by fastening screw trip bolt, leather cup pressing plate and compresses leather cup, and the bottom surface of leather cup pressing plate cooperates with the concave surface on piston head top and adapts.
2, novel funnel shaped non-lubricated air compressor connecting rod piston according to claim 1, it is characterized in that: described conical hopper bar also is provided with plurality of strengthening ribs outward; This stiffening rib links together circular capel, conical hopper bar and piston head.
3, novel funnel shaped non-lubricated air compressor connecting rod piston according to claim 1, it is characterized in that: the top of described leather cup pressing plate is a plane; There is a conical surface hole at the middle part of leather cup pressing plate, and this conical surface hole contacts with the screw head conical surface of fastening screw trip bolt.
4, novel funnel shaped non-lubricated air compressor connecting rod piston according to claim 1, it is characterized in that: described conical hopper bar is the V-shape structure, inside is solid construction; Piston head also is a V-shape structure, and the centre is a hollow-core construction.
5, novel funnel shaped non-lubricated air compressor connecting rod piston according to claim 1, it is characterized in that: leather cup is an annulus, circle is corresponding with the cylindrical of leather cup pressing plate bottom in it.
6, novel funnel shaped non-lubricated air compressor connecting rod piston according to claim 1, it is characterized in that: the round flange on the plane, top of described piston head is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045395 CN2748708Y (en) | 2004-04-30 | 2004-04-30 | Funnel-shaped oil-free lubricating air compressor connecting rod piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045395 CN2748708Y (en) | 2004-04-30 | 2004-04-30 | Funnel-shaped oil-free lubricating air compressor connecting rod piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748708Y true CN2748708Y (en) | 2005-12-28 |
Family
ID=35720199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420045395 Expired - Lifetime CN2748708Y (en) | 2004-04-30 | 2004-04-30 | Funnel-shaped oil-free lubricating air compressor connecting rod piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748708Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224540A (en) * | 2016-07-22 | 2016-12-14 | 佛山市顺德区键合电子有限公司 | A kind of triple-folding type piston component |
| CN107174730A (en) * | 2017-07-27 | 2017-09-19 | 深圳开立生物医疗科技股份有限公司 | Couplant extrusion device and ultrasonic diagnostic equipment |
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
-
2004
- 2004-04-30 CN CN 200420045395 patent/CN2748708Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| CN106224540A (en) * | 2016-07-22 | 2016-12-14 | 佛山市顺德区键合电子有限公司 | A kind of triple-folding type piston component |
| CN107174730A (en) * | 2017-07-27 | 2017-09-19 | 深圳开立生物医疗科技股份有限公司 | Couplant extrusion device and ultrasonic diagnostic equipment |
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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: 20140430 Granted publication date: 20051228 |