CN204226936U - A kind of shockproof joint of pressure-reducing cushioning - Google Patents
A kind of shockproof joint of pressure-reducing cushioning Download PDFInfo
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- CN204226936U CN204226936U CN201420568170.5U CN201420568170U CN204226936U CN 204226936 U CN204226936 U CN 204226936U CN 201420568170 U CN201420568170 U CN 201420568170U CN 204226936 U CN204226936 U CN 204226936U
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- bellows
- pressure
- flange
- reducing cushioning
- stay bolt
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Abstract
The utility model discloses a kind of shockproof joint of pressure-reducing cushioning, comprise bellows and the flange being set in described bellows two ends, the end of described bellows has the double-deck flanging after through flange, and the body edge infolding be connected with this double-deck flanging is in described bellows; Be equipped with stay bolt between two flanges, the end of stay bolt is combined with gland nut, and being positioned at cover on the stay bolt between two flanges has pressure-reducing cushioning device.The utility model structure is simple, easy to use, adopts integrated bellows, solderless contact between bellows and flange, avoid the grain boundary corrosion that welding dissimilar materials causes, and pressure-reducing cushioning device is set, reduce the shrinkage amplitude of bellows during pressurized, reduce fatigue loss.
Description
Technical field
The utility model relates to a kind of flexible pipeline joint component, particularly relates to a kind of shockproof joint of pressure-reducing cushioning.
Background technique
Corrugated flexible metal tube is metallic hose series product one, corrugated flexible metal tube (abbreviation flexible pipe) is the flexible pipe of a kind of high-quality in modern industry pipeline, there is many characteristics such as good ductility, fatigue resistance and pressure-bearing are high, temperature tolerance good, corrosion-resistant, sealing is strong, more much higher than the life-span of other flexible pipe (rubber hose, plastic flexible pipe).It is widely used in the industries such as Aeronautics and Astronautics, oil, chemical industry, iron and steel, electric power, papermaking, building, rubber, textile printing and dyeing, medicine, food, communications and transportation.Along with the development of modern industry, can be increasing to the demand of high quality, high-performance corrugated flexible metal tube.
Shockproof joint is one of metal bellow series product, is mainly used in the import and export of pumping, for vibrations, the minimizing noise of absorptive pumping.If metal tube is directly connected with main frame belong to rigid connection, will makes when main frame vibrates pipeline that the destructions such as stretching occur, be flexible coupling with shockproof joint, can vibration be offset, protective conduit, reduce the power that alignment error produces equipment, conveniently install.
Shockproof joint comprises metal bellows and flange, and in order to reduce costs, most flange all adopts carbon steel material.Placement between existing corrugated stainless steel tubing and flange for welding, manufacturing efficiency is low, and due to flange and bellows be different materials, welding after weld joint can form electrochemical corrosion, accelerate stainless rate of corrosion.In addition, shockproof joint offsets vibration mainly through the flexible of bellows, and bellows can produce fatigue loss, and the bearing capacity suffered by dilatation reduces gradually, affects the working life of shockproof joint.
Model utility content
For overcoming problems of the prior art, the utility model provides the shockproof joint of a kind of structure pressure-reducing cushioning simple, easy to use, adopt integrated bellows, solderless contact between bellows and flange, avoid the grain boundary corrosion that welding dissimilar materials causes, and pressure-reducing cushioning device is set, reduce the shrinkage degree of bellows during pressurized, reduce the fatigue loss of bellows.
A shockproof joint for pressure-reducing cushioning, comprise bellows and the flange being set in described bellows two ends, the end of described bellows has the double-deck flanging after through flange, and the body edge infolding be connected with this double-deck flanging is in described bellows;
Be equipped with stay bolt between two flanges, the end of stay bolt is combined with gland nut, and being positioned at cover on the stay bolt between two flanges has pressure-reducing cushioning device.
In the utility model, the end of bellows forms double-deck flanging through after flange, has good structural strength, not yielding, for fixing and spacing flange, and in edge withdraw after bilayer is turned up and body, bellows periphery and flange are fitted closely, is conducive to the fixing of flange.
Bellows contract after shockproof joint pressurized, the pressure-reducing cushioning device of setting, after bellows compression one segment length, offsets extraneous pressure, reduces the shrinkage degree of bellows, avoids bellows excessive deformation to produce fatigue wear.
As improvement, the side of described flange props up described double-deck flanging, the bellows of opposite side is provided with the position limiting convex ring compressing described flange, by double-deck flanging and the position limiting convex ring of flange both sides, the position of fastening flange, make not need between bellows and flange to be welded and fixed, avoid the grain boundary corrosion that welding dissimilar materials causes.
In addition, the side of described flange props up described double-deck flanging, and opposite side is supported on the bellows segment of described bellows, and the side of flange directly can prop up bellows segment, relies on bellows segment to fix.
In the utility model, described pressure-reducing cushioning device comprises the elastic support member be set on stay bolt, by the elastic strain of elastic support member, slows down the bearing capacity suffered by shockproof joint.
As improvement, described elastic support member is at least two disc springs, and described disc spring side props up described flange, and opposite side props up the stop nut be set on stay bolt, arranging described disc spring is further four, and there is buffer gap between at least one pair of two adjacent disc spring.
The shape of disc spring is circular cone disk like, different from conventional springs, functionally has its special effect, and load is large and stroke is short, significantly can reduce the shrinkage degree of bellows, the buffer gap of setting, being stressed of available buffer disc spring after pressurized.
Under the occasion that some pressure-bearings are larger, described elastic support member is two groups that match with two flanges, is used for sharing the pressure suffered by shockproof joint simultaneously, for bellows provides sufficient protection.
The utility model structure is simple, easy to use, adopts integrated bellows, solderless contact between bellows and flange, avoid the grain boundary corrosion that welding dissimilar materials causes, and pressure-reducing cushioning device is set, reduce the shrinkage amplitude of bellows during pressurized, reduce fatigue loss.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the shockproof joint of pressure-reducing cushioning.
Fig. 2 is the enlarged view of part A in Fig. 1.
Embodiment
As depicted in figs. 1 and 2, a kind of shockproof joint of pressure-reducing cushioning, comprise the bellows 1 of stainless steel and be set in the flange 2 at bellows 1 two ends, the end of this bellows 1 has the double-deck flanging 9 after through flange 2, the body edge infolding be connected with this double-deck flanging 9 is in bellows 1, the side of flange 2 props up double-deck flanging 9, and opposite side is supported on the bellows segment 6 of bellows 1, fixing and spacing with this.
In the present embodiment, utilize polyurethane mould, when extruding, thickness flattens, external diameter increases, make it to expand with the steel pipe extruding the bellows straight section outside flange 2, use this internally pressuring shaping technique that bellows 1 circumferential wave (namely above-mentioned double-deck flanging) that expands is connected with flange 2, and then bellows 1 and flange 2 are fixed the circumferential wave mould flattening outside flange 2, make bellows 1 and flange 2 joint solderless contact, MEDIA FLOW is all stainless steel through contact area, avoid the grain boundary corrosion that welding dissimilar materials causes, extend product working life.
Be equipped with stay bolt 3 between two flanges 2, the end of stay bolt 3 is combined with gland nut 5, and being positioned at cover on the stay bolt 3 between two flanges 2 has pressure-reducing cushioning device 4, and each flange 2 correspondence is provided with one group of pressure-reducing cushioning device 4.Pressure-reducing cushioning device 4 comprises and being set on stay bolt 3 and the elastic support member be made up of four disc springs 8, disc spring 8 side props up flange 2, opposite side props up the stop nut 7 be set on stay bolt 3, and there is buffer gap between at least one pair of two adjacent disc spring 8.The load of disc spring 8 is large, stroke is short, significantly can reduce the shrinkage degree of bellows 1, the buffer gap of setting after pressurized, the pressurized amplitude of available buffer disc spring 8.
The foregoing is only better implementation example of the present utility model, be not limited to the utility model, all within the utility model spirit and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. the shockproof joint of a pressure-reducing cushioning, comprise bellows and the flange being set in described bellows two ends, it is characterized in that, the end of described bellows has the double-deck flanging after through flange, and the body edge infolding be connected with this double-deck flanging is in described bellows;
Be equipped with stay bolt between two flanges, the end of stay bolt is combined with gland nut, and being positioned at cover on the stay bolt between two flanges has pressure-reducing cushioning device.
2. the shockproof joint of pressure-reducing cushioning as claimed in claim 1, it is characterized in that, the side of described flange props up described double-deck flanging, and the bellows of opposite side is provided with the position limiting convex ring compressing described flange.
3. the shockproof joint of pressure-reducing cushioning as claimed in claim 1, it is characterized in that, the side of described flange props up described double-deck flanging, and opposite side is supported on the bellows segment of described bellows.
4. the shockproof joint of pressure-reducing cushioning as claimed in claim 1, it is characterized in that, described pressure-reducing cushioning device comprises the elastic support member be set on stay bolt.
5. the shockproof joint of pressure-reducing cushioning as claimed in claim 4, it is characterized in that, described elastic support member is at least two disc springs, and described disc spring side props up described flange, and opposite side is close to the stop nut be set on stay bolt.
6. the shockproof joint of pressure-reducing cushioning as claimed in claim 5, it is characterized in that, described disc spring is four, and there is buffer gap between at least one pair of two adjacent disc spring.
7. the shockproof joint of pressure-reducing cushioning as claimed in claim 6, is characterized in that, described elastic support member is two groups corresponding with two flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568170.5U CN204226936U (en) | 2014-09-29 | 2014-09-29 | A kind of shockproof joint of pressure-reducing cushioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568170.5U CN204226936U (en) | 2014-09-29 | 2014-09-29 | A kind of shockproof joint of pressure-reducing cushioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226936U true CN204226936U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420568170.5U Active CN204226936U (en) | 2014-09-29 | 2014-09-29 | A kind of shockproof joint of pressure-reducing cushioning |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750680A (en) * | 2018-06-26 | 2018-11-06 | 安徽星马专用汽车有限公司 | A kind of bulk powder goods tanker and its adjustable interior drawing mechanism |
| CN108895227A (en) * | 2018-09-13 | 2018-11-27 | 北京城建集团有限责任公司 | The vertical soft binding structure of air hose with shock insulation compensation function |
| CN109000056A (en) * | 2018-08-16 | 2018-12-14 | 江苏双益给排水有限公司 | A kind of secondary water-supply flow-monitoring device |
-
2014
- 2014-09-29 CN CN201420568170.5U patent/CN204226936U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750680A (en) * | 2018-06-26 | 2018-11-06 | 安徽星马专用汽车有限公司 | A kind of bulk powder goods tanker and its adjustable interior drawing mechanism |
| CN109000056A (en) * | 2018-08-16 | 2018-12-14 | 江苏双益给排水有限公司 | A kind of secondary water-supply flow-monitoring device |
| CN108895227A (en) * | 2018-09-13 | 2018-11-27 | 北京城建集团有限责任公司 | The vertical soft binding structure of air hose with shock insulation compensation function |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |