CN102767621A - Irregular packing - Google Patents
Irregular packing Download PDFInfo
- Publication number
- CN102767621A CN102767621A CN2012102866495A CN201210286649A CN102767621A CN 102767621 A CN102767621 A CN 102767621A CN 2012102866495 A CN2012102866495 A CN 2012102866495A CN 201210286649 A CN201210286649 A CN 201210286649A CN 102767621 A CN102767621 A CN 102767621A
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- packing
- isosceles trapezoid
- section
- cross
- face
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Abstract
Disclosed is an irregular packing. The packing comprises a band-shaped body and is characterized in that the cross section of the body, which is perpendicular to the length direction of the body is an isosceles trapezoid, the lower base of the isosceles trapezoid corresponds to the outer side surface of the body, the upper base of the isosceles trapezoid corresponds to the inner side surface of the body, and two sides of the isosceles trapezoid respectively correspond to the upper end face and the lower end face of the body. Compared with the prior art, the packing has the advantages that after the packing with the isosceles trapezoid cross section is bent to form an annular shape, an outer ring is extruded towards an inner ring, the upper end face and the lower end face become a plane surface, the cross section of the whole body becomes a rectangle, and the packing is hermetically sealed and the leakage is avoided when plane surfaces are attached to one another closely.
Description
Technical field
The present invention relates to a kind of packing, belong to the Sealing technical field.
Background technique
Packing (packing) also named stuffing box packing, formed by soft thread braiding usually, and sectional area is that square or rectangular, circular bar are filled in the seal chamber usually, thereby realizes sealing.Packing seal is in leakage way, to stop flow to be leaked with fiber plug such as linen-cottons the earliest, and mainly the axle as water lifting machinery seals.Because fill source is extensive, easy processing is cheap, and sealing is reliable, and is simple to operate, so use till today.Now packing is widely used in rotating shaft sealing, reciprocating pump, the reciprocal compressor of centrifugal pump, compressor, vacuum pump, stirrer and propeller for vessels, the reciprocating shaft envelope of refrigerator, and the turn sealing of various valve rods etc.
Like the patent No. is the Chinese utility model patent " a kind of packing " (notice of authorization number for CN2521444Y) of ZL01254937.1, can also referenced patent number is the Chinese utility model patent " wear-resisting packing " (notice of authorization number be CN201843561U) etc. of ZL201020611578.8.
But existing this packing cross section is adopted square or rectangular, circle basically; The packing in this cross section is bent to form after the ring-type because squeezing action makes packing inner ring both sides to outer lug, forms irregular surface; This irregular surface is close to when arranging each other; Tend to cause sealing unreal, cause leakage, need to improve for this reason.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of packing to be bent to form the special-shaped packing that the ring-type trailing flank is a burnishing surface to the above-mentioned state of the art.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: a kind of special-shaped packing; Comprise the body that is banded; The cross section that it is characterized in that the vertical body length direction of said body is an isosceles trapezoid; The outer side surface of the corresponding body of going to the bottom that these isosceles are trapezoidal, the inner side surface of the corresponding body of upper base, two waists are the upper-end surface and the lower end surface of corresponding body respectively.
Further, high isometric with isosceles trapezoid of going to the bottom of said isosceles trapezoid.
Further, the base angle angle of said isosceles trapezoid is 74～78 °.
Compared with prior art; The invention has the advantages that: the packing in the cross section of employing isosceles trapezoid is after being bent to form ring-type, and the outer ring is pushed to inner ring, just in time upper-end surface and lower end surface is become burnishing surface; Make whole cross section become rectangle; Even curface is close to when arranging each other like this, can guarantee closely knitly, is difficult for leaking.
Description of drawings
Fig. 1 is the example structure schematic representation.
Fig. 2 is the structural representation in embodiment cross section.
Fig. 3 is bent to form the structural representation of ring-type for embodiment.
Fig. 4 is the three-dimensional cutaway view of Fig. 3.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2; The abnormity packing comprises the body 1 that is banded, and the cross section of body 1 vertical body length direction is an isosceles trapezoid, the outer side surface of the 11 corresponding bodies of going to the bottom that these isosceles are trapezoidal; The inner side surface of upper base 12 corresponding bodies, two waists are the upper-end surface and the lower end surface of corresponding body respectively.As shown in Figure 2, high isometric with isosceles trapezoid of going to the bottom of isosceles trapezoid, the base angle of isosceles trapezoid is 74～78 °, is the best with 76 °.
Because the packing applied environment there are differences, the radius during use after the bending also there are differences, so according to actual conditions, the isosceles trapezoid in cross section is high, corresponding variation can be done in the base angle.
Like Fig. 3 and shown in Figure 4, the packing in cross section that adopts isosceles trapezoid after being bent to form ring-type, the pushing of outer ring to inner ring; Just in time upper-end surface and lower end surface are become burnishing surface, make whole cross section become rectangle, even curface is close to when arranging each other like this; Can guarantee closely knitly, be difficult for leak.
Claims (3)
1. special-shaped packing; Comprise the body that is banded, the cross section that it is characterized in that the vertical body length direction of said body is an isosceles trapezoid, the outer side surface of the corresponding body of going to the bottom that these isosceles are trapezoidal; The inner side surface of the corresponding body of upper base, two waists are the upper-end surface and the lower end surface of corresponding body respectively.
2. special-shaped packing according to claim 1 is characterized in that high isometric with isosceles trapezoid of going to the bottom of said isosceles trapezoid.
3. special-shaped packing according to claim 2, the base angle angle that it is characterized in that said isosceles trapezoid is 74～78 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102866495A CN102767621A (en) | 2012-08-13 | 2012-08-13 | Irregular packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102866495A CN102767621A (en) | 2012-08-13 | 2012-08-13 | Irregular packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102767621A true CN102767621A (en) | 2012-11-07 |
Family
ID=47095131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102866495A Pending CN102767621A (en) | 2012-08-13 | 2012-08-13 | Irregular packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767621A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211320U (en) * | 1988-01-08 | 1988-12-28 | 吴树济 | Sealing element made from metal and expanding graphite composite packing |
| US5171022A (en) * | 1991-03-09 | 1992-12-15 | Werner & Pfleiderer Gmbh | Shaft seal of a mixing and kneading machine |
| JPH0539871A (en) * | 1991-08-02 | 1993-02-19 | Nippon Valqua Ind Ltd | Braided packing and manufacture thereof |
| CN2230377Y (en) * | 1995-09-07 | 1996-07-03 | 唐荣波 | Multi-layer-liquid pressure-conducting disk root |
| US5695201A (en) * | 1994-10-28 | 1997-12-09 | The Texacone Company | Packing member with reduced friction |
| CN2554338Y (en) * | 2002-05-18 | 2003-06-04 | 大庆联创石油工具制造有限公司 | Ring type sealing packing |
| JP2005121186A (en) * | 2003-10-20 | 2005-05-12 | Yasuhiro Mori | Leak preventing packing |
| CN201195114Y (en) * | 2008-04-02 | 2009-02-18 | 上海皇恒化工科技有限公司 | Echelon formed positive wave grille stuffing |
| CN202732942U (en) * | 2012-08-13 | 2013-02-13 | 慈溪博格曼密封材料有限公司 | Special-shaped packing |
-
2012
- 2012-08-13 CN CN2012102866495A patent/CN102767621A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211320U (en) * | 1988-01-08 | 1988-12-28 | 吴树济 | Sealing element made from metal and expanding graphite composite packing |
| US5171022A (en) * | 1991-03-09 | 1992-12-15 | Werner & Pfleiderer Gmbh | Shaft seal of a mixing and kneading machine |
| JPH0539871A (en) * | 1991-08-02 | 1993-02-19 | Nippon Valqua Ind Ltd | Braided packing and manufacture thereof |
| US5695201A (en) * | 1994-10-28 | 1997-12-09 | The Texacone Company | Packing member with reduced friction |
| CN2230377Y (en) * | 1995-09-07 | 1996-07-03 | 唐荣波 | Multi-layer-liquid pressure-conducting disk root |
| CN2554338Y (en) * | 2002-05-18 | 2003-06-04 | 大庆联创石油工具制造有限公司 | Ring type sealing packing |
| JP2005121186A (en) * | 2003-10-20 | 2005-05-12 | Yasuhiro Mori | Leak preventing packing |
| CN201195114Y (en) * | 2008-04-02 | 2009-02-18 | 上海皇恒化工科技有限公司 | Echelon formed positive wave grille stuffing |
| CN202732942U (en) * | 2012-08-13 | 2013-02-13 | 慈溪博格曼密封材料有限公司 | Special-shaped packing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121107 |