CN103485948A - Protection high-pressure oil pipe - Google Patents
Protection high-pressure oil pipe Download PDFInfo
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- CN103485948A CN103485948A CN201310394640.0A CN201310394640A CN103485948A CN 103485948 A CN103485948 A CN 103485948A CN 201310394640 A CN201310394640 A CN 201310394640A CN 103485948 A CN103485948 A CN 103485948A
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- oil
- oil pipe
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- drain mast
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Abstract
The invention discloses a protection high-pressure oil pipe, comprising an oil drainage mechanism assembly, a pipe joint and a double-layer oil pipe, wherein the oil drainage mechanism assembly comprises an oil drainage pipe, a return oil joint which is arranged on the side wall of the oil drainage pipe and an oil drainage pipe pressing cap and an oil drainage pipe seal ring which are arranged on the two ends of the oil drainage pipe; the pipe joint comprises a connecting nut, a nut pressing cap, a nut seal ring and a nut packing washer; the nut pressing cap and the nut seal ring are arranged at the inner end of the connecting nut; the nut packing washer is arranged at the outer end of the connecting nut; the double-layer oil pipe is arranged in the oil drainage pipe in a penetrating way; the extending end of the double-layer oil pipe is in seal connection with an oil inlet connector of an oil atomizer or an oil outlet connector of an oil pump by the pipe joint. The protection high-pressure oil pipe is simple and reasonable in structure; the return oil joint is arranged on an oil drainage mechanism in the middle of the oil pipe, so that the axial length of the connecting nut at the end part of the high-pressure oil pipe is shortened, the convenience of the arrangement of the high-pressure oil pipe is improved, and the protection reliability of the high-pressure oil pipe is higher.
Description
Technical field
The present invention relates to engine art, particularly a kind of protective type high-pressure oil pipe.
Background technique
As shown in Figure 1, the protective type high-pressure oil pipe comprises at present: anti-leak oil revolving end pipe joint 1, double layer oil pipe 2 and back leakage connection 3.As shown in Figure 2, anti-leak oil revolving end pipe joint 1 comprises: attaching nut 11, packing washer 12, O RunddichtringO 13, cover ring member 14, shaft-use elastic gear ring 15, seal ring 16, pressure cap 17, outer layer sleeve 18, internal layer oil pipe 19 and back leakage connection 20.
Wherein, attaching nut 11 compresses packing washer 12, realizes the sealing of oil pipe termination and oil sprayer fuel inlet fitting or oil pump delivery connection, realizes the fuel oil with packing washer sealing internal layer tubing leak simultaneously.Pressure cap 17 is tightened on attaching nut 11 by screw thread, realizes the fuel oil of sealing internal layer tubing leak by press seal circle 16.If internal layer oil pipe 19 leaks, the fuel oil of leakage falls by back leakage connection 20 and through external oil pipe gets back to fuel tank safely, and can not leak into external engine, does not cause fire accident.
But the back leakage connection 20 of existing protective type high-pressure oil pipe is arranged on attaching nut 11 sidewall by cover ring member 14, make attaching nut 11 axial length longer, be unfavorable for its laying at space compacted locations such as oil sprayer fuel inlet fitting, oil pump delivery connection and suction tude.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, provides a kind of simple and reasonable, and it is convenient to lay, the high protective type high-pressure oil pipe of protection reliability.
For achieving the above object, according to the invention provides a kind of protective type high-pressure oil pipe, comprising:
The draining mechanism assembly, it comprises: drain mast and be laid in the back leakage connection on the drain mast sidewall, and the drain mast pressure cap and the drain mast seal ring that are laid in the drain mast two ends;
Pipe joint, it comprises: the attaching nut, and be laid in nut pressure cap, the nut seal circle of stating attaching nut the inner and the nut packing washer that is laid in the attaching nut outer end;
Double layer oil pipe, be located in drain mast, and external part is tightly connected by pipe joint and oil sprayer fuel inlet fitting or oil pump delivery connection.
In technique scheme, double layer oil pipe comprises: internal layer oil pipe and the outer layer sleeve that is set in the internal layer oil pipe outside.
In technique scheme, the drain mast pressure cap is screwed to the two ends of drain mast, and by compressing the fuel oil of drain mast seal ring sealing internal layer tubing leak.
In technique scheme, the nut pressure cap is screwed to attaching nut the inner.
In technique scheme, back leakage connection is arranged on the drain mast sidewall along orthogonal direction.
Compared with prior art, the present invention has following beneficial effect: this protective type high-pressure oil pipe is simple and reasonable, in the draining mechanism that back leakage connection is laid in to the oil pipe middle part, shortened end part of high-pressure oil pipe attaching nut's axial length, improved the convenience that high-pressure oil pipe is laid, the protection reliability of this high-pressure oil pipe is also higher simultaneously.
The accompanying drawing explanation
Fig. 1 is the structural representation of existing protective type high-pressure oil pipe;
Fig. 2 is the anti-leak oil revolving end pipe joint sectional structure schematic diagram of existing protective type high-pressure oil pipe;
The structural representation that Fig. 3 is protective type high-pressure oil pipe of the present invention;
The sectional structure schematic diagram that Fig. 4 is protective type high-pressure oil pipe of the present invention;
The use status architecture schematic diagram that Fig. 5 is protective type high-pressure oil pipe of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of embodiment.It will be appreciated that, mentioned in following mode of execution of the present invention " on ", D score, " left side ", " right side ", " front " and " reverse side " all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only for convenience of explanation, do not represent the restriction to the concrete technological scheme of the present invention.
Protective type high-pressure oil pipe of the present invention is simple and reasonable, in the draining mechanism that back leakage connection is laid in to the oil pipe middle part, shortened the attaching nut's who is positioned at end part of high-pressure oil pipe axial length, improved the convenience that high-pressure oil pipe is laid, the protection reliability of this high-pressure oil pipe is also higher simultaneously.
Below detailed description by way of example but unrestriced mode has illustrated the disclosure, should be understood that various aspect of the present disclosure can be by independent realization or the realization of being combined with other aspects.This specification clearly enables those skilled in the art to manufacture and uses us to believe for new and non-obvious improvement, describe some embodiments, alternative, modification, alternative and system applies, comprised the current best mode that is considered to carry out the inventive principle of describing in this specification.When describing element or feature and/or embodiment, be intended to expression titled with " one " " one " " be somebody's turn to do " and " described " and there are one or more in element or feature.Term " comprises " that " comprising " and " having " is intended to is comprising property, and also has extra element or feature beyond being illustrated in those specifically described elements or feature.
As shown in Figure 3 and Figure 4, the concrete structure of this protective type high-pressure oil pipe comprises: the draining mechanism assembly 4 and the pipe joint 5 that is positioned at two ends that are positioned at middle part, and the double layer oil pipe 6 that connects draining mechanism assembly and two ends pipe joint, wherein, pipe joint 5, for the sealing with oil sprayer fuel inlet fitting or oil pump delivery connection, is realized the fuel oil with packing washer sealing internal layer tubing leak simultaneously.Draining mechanism assembly 4 has back leakage connection, if the internal layer oil pipe leaks, the fuel oil of leakage falls by back leakage connection and through external oil pipe gets back to fuel tank safely, and can not leak into external engine, does not cause fire accident.Back leakage connection is integrated on the draining mechanism assembly 4 that is positioned at middle part, has shortened the attaching nut's who is positioned at end part of high-pressure oil pipe axial length, has improved the convenience that high-pressure oil pipe is laid, and the protection reliability of this high-pressure oil pipe is also higher simultaneously.
Double layer oil pipe 6 comprises: internal layer oil pipe 61 and outer layer sleeve 62, the whole drain mast by draining mechanism assembly 4 passes.
As shown in Figure 5, during use, pipe joint 5 is tightly connected with oil sprayer 7 fuel inlet fittings or oil pump 8 delivery connections, and get around suction tude 9, now, attaching nut 51 compresses gland nut seal ring 53, realizes the sealing of oil pipe termination and oil sprayer fuel inlet fitting or oil pump delivery connection, realizes the fuel oil with packing washer sealing internal layer tubing leak simultaneously.Drain mast seal ring 44 is arranged in drain mast pressure cap 43, and the two ends that are screwed to drain mast 41 by drain mast pressure cap 43 are located in the fuel oil of the interior double layer oil pipe 6 internal layer tubing leaks of drain mast 41 with sealing.Back leakage connection 42 orthogonal directions are arranged on drain mast 41 sidewalls, and the oil of internal layer tubing leak is got back to fuel tank safely through external oil pipe, and can not leak into external engine, do not cause fire accident.
To sum up, this protective type high-pressure oil pipe is simple and reasonable, in the draining mechanism that back leakage connection is laid in to the oil pipe middle part, has shortened end part of high-pressure oil pipe attaching nut's axial length, improved the convenience that high-pressure oil pipe is laid, the protection reliability of this high-pressure oil pipe is also higher simultaneously.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (5)
1. a protective type high-pressure oil pipe, is characterized in that, comprising:
The draining mechanism assembly, it comprises: drain mast and be laid in the back leakage connection on described drain mast sidewall, and the drain mast pressure cap and the drain mast seal ring that are laid in described drain mast two ends;
Pipe joint, it comprises: the attaching nut, and be laid in nut pressure cap, the nut seal circle of described attaching nut the inner and be laid in the nut packing washer of attaching nut outer end;
Double layer oil pipe, be located in described drain mast, and external part is tightly connected by described pipe joint and oil sprayer fuel inlet fitting or oil pump delivery connection.
2. protective type high-pressure oil pipe according to claim 1, it is characterized in that: described double layer oil pipe comprises: internal layer oil pipe and be set in the outer layer sleeve in the described internal layer oil pipe outside.
3. protective type high-pressure oil pipe according to claim 2, it is characterized in that: described drain mast pressure cap is screwed to the two ends of drain mast, and seals the fuel oil of described internal layer tubing leak by compressing the drain mast seal ring.
4. protective type high-pressure oil pipe according to claim 1, it is characterized in that: described nut pressure cap is screwed to attaching nut the inner.
5. according to the described protective type high-pressure oil pipe of any one in claim 1 to 4, it is characterized in that: described back leakage connection is arranged on described drain mast sidewall along orthogonal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394640.0A CN103485948A (en) | 2013-08-30 | 2013-08-30 | Protection high-pressure oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394640.0A CN103485948A (en) | 2013-08-30 | 2013-08-30 | Protection high-pressure oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103485948A true CN103485948A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310394640.0A Pending CN103485948A (en) | 2013-08-30 | 2013-08-30 | Protection high-pressure oil pipe |
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| Country | Link |
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| CN (1) | CN103485948A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676205A (en) * | 2017-09-30 | 2018-02-09 | 河北华北柴油机有限责任公司 | A kind of engine oil tube leakage protection system |
| CN113757473A (en) * | 2021-09-01 | 2021-12-07 | 江苏耀坤液压股份有限公司 | High-pressure-resistant steel oil pipe for engineering machinery |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286556B1 (en) * | 1999-05-14 | 2001-09-11 | Usui Kokusai Sangyo Kaisha Ltd | High-pressure fuel injection pipe for diesel engine |
| CN2591258Y (en) * | 2002-11-27 | 2003-12-10 | 山东龙口油管厂 | Diesel engine high pressure oil pipe with protection |
| US20100186829A1 (en) * | 2007-02-27 | 2010-07-29 | Thierry Guerineau | Device for collecting fuel leaks on the supply pipes of an interface |
| CN202012426U (en) * | 2011-03-14 | 2011-10-19 | 广西玉柴机器股份有限公司 | Oil transport pipe assembly for engine |
| TWM453728U (en) * | 2012-11-22 | 2013-05-21 | Shen S Glory Inc | Fuel supply device and oil reflow tee thereof |
| CN203404005U (en) * | 2013-08-30 | 2014-01-22 | 广西玉柴机器股份有限公司 | Protection type high-pressure oil pipe |
-
2013
- 2013-08-30 CN CN201310394640.0A patent/CN103485948A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286556B1 (en) * | 1999-05-14 | 2001-09-11 | Usui Kokusai Sangyo Kaisha Ltd | High-pressure fuel injection pipe for diesel engine |
| CN2591258Y (en) * | 2002-11-27 | 2003-12-10 | 山东龙口油管厂 | Diesel engine high pressure oil pipe with protection |
| US20100186829A1 (en) * | 2007-02-27 | 2010-07-29 | Thierry Guerineau | Device for collecting fuel leaks on the supply pipes of an interface |
| CN202012426U (en) * | 2011-03-14 | 2011-10-19 | 广西玉柴机器股份有限公司 | Oil transport pipe assembly for engine |
| TWM453728U (en) * | 2012-11-22 | 2013-05-21 | Shen S Glory Inc | Fuel supply device and oil reflow tee thereof |
| CN203404005U (en) * | 2013-08-30 | 2014-01-22 | 广西玉柴机器股份有限公司 | Protection type high-pressure oil pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676205A (en) * | 2017-09-30 | 2018-02-09 | 河北华北柴油机有限责任公司 | A kind of engine oil tube leakage protection system |
| CN113757473A (en) * | 2021-09-01 | 2021-12-07 | 江苏耀坤液压股份有限公司 | High-pressure-resistant steel oil pipe for engineering machinery |
| CN113757473B (en) * | 2021-09-01 | 2022-11-22 | 江苏耀坤液压股份有限公司 | High-pressure-resistant steel oil pipe for engineering machinery |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20140101 |