CN2186839Y - Polytetrafluorethylene corrugated hose assembly - Google Patents
Polytetrafluorethylene corrugated hose assembly Download PDFInfo
- Publication number
- CN2186839Y CN2186839Y CN 94227831 CN94227831U CN2186839Y CN 2186839 Y CN2186839 Y CN 2186839Y CN 94227831 CN94227831 CN 94227831 CN 94227831 U CN94227831 U CN 94227831U CN 2186839 Y CN2186839 Y CN 2186839Y
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- CN
- China
- Prior art keywords
- hose assembly
- flexible pipe
- reinforcing material
- teflon
- utility
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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 - Fee Related
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Abstract
The utility model relates to a polytetrafluorethylene corrugated hose assembly, which is used for the hydraulic system and the pneumatic system of an aerial aircraft. The corrugation of the hose is the helical sine corrugation. The reinforcing material is coated out of the hose. The reinforcing material is made of the fibre glass, the glass cloth, the chemical fibre, the stainless steel wire, the fire-proofing rubber, etc. The utility model has high temperature resistance, high pliability, high dielectric property, high corrosion resistance and outstanding surface property and is an ideal pressure-proof hose assembly for the hydraulic system and the pressure system of the aviation.
Description
The utility model relates to a kind of hydraulic pressure of aviation aircraft, pressure hose assembly of pressure system of being used for.
As everyone knows, along with developing rapidly of high-performance aviation aircraft, more and more higher to the requirement of the pressure hose assembly of its hydraulic pressure, pressure system.Characteristics such as the performance that is the pressure hose assembly should have light weight, volume is little, high temperature resistant, corrosion-resistant, ageing-resistant, flexural property is good and easy for installation.The past tradition is used rubber hose and metallic hose.The rubber hose quality is heavy, volume is big, flexural property is poor, and " drum is quick-fried " phenomenon easily takes place, and working life is short.Shortcomings such as metallic hose then has quality overweight, and is not corrosion-resistant.Therefore, no matter be the requirement that rubber hose or metallic hose all can not reach novel aviation aircraft.The teflon hose of Cai Yonging afterwards, though it can satisfy light weight, requirement such as high temperature resistant, corrosion-resistant, ageing-resistant and easy for installation, but its flexural property is not ideal enough, the hydraulic pressure of novel high-performance flight device that therefore neither be desirable, the pressure hose assembly of pressure system.
The purpose of this utility model provides a kind of hydraulic pressure of aviation aircraft, teflon corrugated flexible hose assembly of pressure system of being used for.It has light weight, withstand voltage, high temperature resistant, corrosion-resistant, ageing-resistant, flexural property is good and characteristics such as easy for installation.
The utility model is achieved in that the characteristics of the teflon corrugated flexible hose assembly of this hydraulic pressure that is used for aviation aircraft, pressure system are that the ripple of flexible pipe is the helical sine bellows, the outer looping reinforcing material of flexible pipe.The ripple struction of flexible pipe is relevant with the flexural property of flexible pipe, and longitudinal plane is square, during ripple such as trapezoidal, and is because of there being sharp point, withstand voltage relatively poor.When longitudinal plane is sine bellows, can satisfy requirement of withstand voltage, and flexural property is good.The outer looping reinforcing material of flexible pipe can strengthen withstand voltage, the resistance to deflection performance of flexible pipe, to satisfy the needs of specific use.
The utility model is to adopt polytetrafluoroethyldispersion dispersion resin by the paste extrusion modling, make the teflon shell, then the external mold that match each other and the core spiral forming formed of teflon shell by having sine bellows is molded as polytetrafluoroethylbellows bellows.As flexible pipe, outside looping reinforcing material promptly becomes the pressure hose assembly that is used for hydraulic air, pressure system with this polytetrafluoroethylbellows bellows--teflon corrugated flexible hose assembly.
The external diameter of corrugated flexible hose of the present utility model is φ 10～φ 24mm, and internal diameter is φ 6.5～φ 20mm, and wall thickness is 0.65～1mm, and pitch is 3～6mm.The flexural property of flexible pipe is relevant with wall thickness and pitch, and the inside and outside footpath of corrugated flexible hose of the present utility model and pitch dimension can make flexible pipe have best flexural property.
The reinforcing material of the outer looping of flexible pipe of the present utility model is: a, fiberglass braided reinforcing material.B, the outer looping chemical fibre braid reinforcement of glass cloth.C, the outer looping Stainless Steel Wire braid reinforcement of glass cloth.D, the outer looping Stainless Steel Wire braid reinforcement of glass cloth be the anti-caoutchouc of outsourcing again.Reinforcing materials such as above-mentioned glass fibre, glass cloth, chemical fibre, Stainless Steel Wire and anti-caoutchouc can improve withstand voltage, high temperature resistant, corrosion-resistant, the ageing-resistant performance of flexible pipe.
Metal connecting piece is equipped with at bellows component of the present utility model two ends, makes things convenient for the installation of all lengths flexible pipe.
The utility model teflon corrugated flexible hose assembly combines the excellent combination property of teflon and the high flexural property of ripple struction, advantage with four high spies, be high temperature tolerance, high flexibility, high dielectric property, high rotproofness and outstanding surface property, make it be adapted at the application of special dimension.Teflon has better temperature tolerance than general plastics, and the serviceability temperature scope is at-60 ℃～250 ℃, and therefore, teflon corrugated flexible hose assembly not only can be made the high temperature media pipeline, also is applicable to cryogenic engineering.Teflon corrugated flexible hose assembly has better flexural property than general flexible pipe, and the dislocation that therefore can be used for various pipelines connects, and makes things convenient for piping erection; And can eliminate and force the Installation Stress of installing and producing, to the redeeming of expanding with heat and contract with cold of pipeline.Teflon also has excellent fire retardant, and it has high dielectric strength and low dielectric loss angle tangent, and its high temperature, high frequency performance are better, and therefore, the utility model can be used as the cable sleeve of special dimension, as the cable sleeve on the aircraft motor.Teflon is the best a kind of material of chemical stability in known plastic, precious metal (gold and platinum), glass, pottery, special steel and alloy material have been surpassed, the strongest chemical substance of corrosivity such as concentrated acid, high alkali liquid, strong oxidizer, hydrogen cloride etc. are not had an effect under normal temperature and high temperature, therefore, the utility model can be used as the pipeline of anticorrosion pipeline and production high purity reagent.Teflon has special surface property, and promptly viscosity not can not produce " incrustation scale " as steam line, and therefore, the utility model can greatly improve working life as platen-press steam and cooling water pipeline, reduces the device maintenance expense.
Now in conjunction with the accompanying drawings embodiment of the present utility model is specified.
Fig. 1 is a sectional drawing of the present utility model.
Fig. 2 is the enlarged view of I among Fig. 1.
Fig. 3 is sectional drawing of the present utility model (the outer fiberglass braided reinforcing material of looping of flexible pipe).
Fig. 4 is sectional drawing of the present utility model (the outer looping glass cloth of flexible pipe outward looping chemical fibre braid reinforcement) again.
Fig. 5 is sectional drawing of the present utility model (the outer looping Stainless Steel Wire braid reinforcement of the outer looping glass cloth of flexible pipe is the anti-caoutchouc of outsourcing again).
Number in the figure is represented:
The 1-flexible pipe, the 2-reinforcing material, the fiberglass braided reinforcing material of 3-, 4-chemical fibre braid reinforcement, the 5-glass cloth, 6-Stainless Steel Wire braid reinforcement, 7-prevents caoutchouc, the 8-link.
The ripple of the flexible pipe ［ 1 ］ of the teflon corrugated flexible hose assembly of this hydraulic pressure that is used for aviation aircraft, pressure system is helical sine bellows (referring to Fig. 1, Fig. 2, Fig. 3), the fiberglass braided reinforcing material of the outer looping of flexible pipe ［ 1 ］ ［ 3 ］.The external diameter of flexible pipe ［ 1 ］ is φ 16mm, and internal diameter is φ 12mm, and pitch is 3.55mm, and aluminum alloy link ［ 8 ］ is equipped with at the hose two ends.This corrugated flexible hose assembly is used for aerating system on certain aircraft, and is functional.
The ripple of the flexible pipe ［ 1 ］ of teflon corrugated flexible hose assembly is helical sine bellows (referring to Fig. 4), the outer looping glass cloth of flexible pipe ［ 1 ］ ［ 5 ］, outer again looping chemical fibre braid reinforcement ［ 4 ］.The external diameter of flexible pipe ［ 1 ］ is φ 18mm, and internal diameter is φ 14mm, and pitch is 4.5mm, and aluminum alloy link ［ 8 ］ is equipped with at the hose two ends.This corrugated flexible hose assembly is used for oil-fired system on certain aircraft, and is functional.
Except the looping glass cloth of flexible pipe ［ 1 ］ ［ 5 ］, outside the outer again looping Stainless Steel Wire braid reinforcement ［ 6 ］, other technologies feature and purposes are all with embodiment 2.
The ripple of the flexible pipe ［ 1 ］ of teflon corrugated flexible hose assembly is helical sine bellows (referring to Fig. 5), the outer looping glass cloth of flexible pipe ［ 1 ］ ［ 5 ］, outer again looping Stainless Steel Wire braid reinforcement ［ 6 ］, the anti-caoutchouc ［ 7 ］ of outsourcing again.The external diameter of flexible pipe ［ 1 ］ is φ 20mm, and internal diameter is φ 16mm, and pitch is 3.5mm.Stainless steel adapting piece ［ 8 ］ is equipped with at the hose two ends.This corrugated flexible hose assembly is used for lubricating oil system on certain aircraft, and is functional.
Claims (4)
1, a kind of hydraulic pressure that is used for aviation aircraft, the teflon corrugated flexible hose assembly of pressure system, the ripple that it is characterized in that flexible pipe [1] is the helical sine bellows, the outer looping reinforcing material of flexible pipe [1] [2].
2, teflon corrugated flexible hose assembly as claimed in claim 1, the external diameter that it is characterized in that flexible pipe ［ 1 ］ is φ 10～φ 24mm, and internal diameter is φ 6.5～φ 20mm, and wall thickness is 0.65～1mm, and pitch is 3～6mm.
3, teflon corrugated flexible hose assembly as claimed in claim 1 is characterized in that the reinforcing material of the outer looping of flexible pipe ［ 1 ］ is:
A, fiberglass braided reinforcing material ［ 3 ］;
B, glass cloth ［ 5 ］ outer looping chemical fibre braid reinforcement ［ 4 ］;
C, glass cloth ［ 5 ］ outer looping Stainless Steel Wire braid reinforcement ［ 6 ］;
D, glass cloth ［ 5 ］ outer looping Stainless Steel Wire braid reinforcement ［ 6 ］, the anti-caoutchouc ［ 7 ］ of outsourcing again.
4, teflon corrugated flexible hose assembly as claimed in claim 1 is characterized in that corrugated flexible hose assembly two ends are equipped with metal connecting piece ［ 8 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227831 CN2186839Y (en) | 1994-03-12 | 1994-03-12 | Polytetrafluorethylene corrugated hose assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227831 CN2186839Y (en) | 1994-03-12 | 1994-03-12 | Polytetrafluorethylene corrugated hose assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186839Y true CN2186839Y (en) | 1995-01-04 |
Family
ID=33840495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94227831 Expired - Fee Related CN2186839Y (en) | 1994-03-12 | 1994-03-12 | Polytetrafluorethylene corrugated hose assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186839Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1906439B (en) * | 2004-03-26 | 2010-10-06 | 日立金属株式会社 | Flexible pipe |
| CN102661456A (en) * | 2012-05-08 | 2012-09-12 | 临海市澳法管业有限公司 | Method for preparing polytetrafluoroethylene corrugated hose for returning oil by pressurizer |
| CN105823363A (en) * | 2016-05-31 | 2016-08-03 | 江苏金由新材料有限公司 | Vibration reducing pipe |
-
1994
- 1994-03-12 CN CN 94227831 patent/CN2186839Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1906439B (en) * | 2004-03-26 | 2010-10-06 | 日立金属株式会社 | Flexible pipe |
| CN102661456A (en) * | 2012-05-08 | 2012-09-12 | 临海市澳法管业有限公司 | Method for preparing polytetrafluoroethylene corrugated hose for returning oil by pressurizer |
| CN105823363A (en) * | 2016-05-31 | 2016-08-03 | 江苏金由新材料有限公司 | Vibration reducing pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |