CN202812550U - Novel connecting pipe fitting - Google Patents
Novel connecting pipe fitting Download PDFInfo
- Publication number
- CN202812550U CN202812550U CN 201220399405 CN201220399405U CN202812550U CN 202812550 U CN202812550 U CN 202812550U CN 201220399405 CN201220399405 CN 201220399405 CN 201220399405 U CN201220399405 U CN 201220399405U CN 202812550 U CN202812550 U CN 202812550U
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- Prior art keywords
- pipe fitting
- welded
- connecting pipe
- novel connecting
- metal
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- Expired - Fee Related
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Abstract
The utility model discloses a novel connecting pipe fitting, and belongs to the technical field of diesel engine diesel fuel connecting fittings. The novel connecting pipe fitting is composed of metal pipes, a corrugated pipe and junction flange pieces. Two ends of the corrugated pipe are welded with two metal pipes, and the other two ends of the two metal pipes are welded with two junction flange pieces. The corrugated pipe is composed of metal sleeves and an expansion joint. Two ends of the expansion joint are welded with two metal sleeves, the two metal pipes are fixed through the two metal sleeves in a welded mode, and the corrugated pipe is formed by means of pressuring a thin-wall stainless steel tube to form a corrugation shape and is fixed through bolts. The expansion joint has the functions of compensating in axial direction, transverse direction and angle direction to the pipe fittings through stretching and bending, reducing the influences on pipelines caused by vibrating of a device and the like. The novel connecting pipe fitting is enlarged in pilling-out force, and therefore the reliability of connecting is greatly enhanced. Sealing property is enhanced and quality is stable, thus the novel connecting pipe fitting can adapt to higher pressure and wider temperature range, assembly matching is tighter, and the sealing property is effectively enhanced.
Description
Technical field
The utility model belongs to diesel engine diesel oil link technical field, is improvements over the prior art, is specifically related to a kind of Novel connecting pipe fitting.
Background technique
Return tube mainly be unspent fuel delivery in the oil spout guide rail in fuel tank, general return line and oil-feed and row pipeline are long, vapour lock appears summer easily, some is to change single oil pipe output into, on the fuel pump of oil return system in fuel tank, directly oil return has been shortened oil return time and distance in fuel tank on fuel pump, has greatly reduced the phenomenon of vapour lock.
In the diesel engine diesel oil connection pipe fitting technology, adopt a kind of linkage structure that is formed by (termination raises into stirrup) clamp, sebific duct, it is directly at ring-shaped stirrup of metallic steel pipe end moulding, and stirrup place cover has sebific duct, and there is head hoop the sebific duct outside that is enclosed within the annular protrusion section.It is simple in structure, easy to assembly for this linkage structure.But the performance of this linkage structure is stable not under high pressure, low-temperature condition, adopt single protruding mode in the present existing technology, sebific duct shrinks, the supporting the use of steel pipe and sebific duct, but in use, though it is capable of expansion and contraction that sebific duct can play, the advantages such as bending effect is good, but sebific duct uses for a long time, aging easily, Seepage appears in high pressure explosion easily.
Summary of the invention
In order to solve deficiency of the prior art, the utility model provides a kind of Novel connecting pipe fitting, has simple in structure, on the basis easy to assembly, can satisfy the more requirement of high pressure, and suitable worst cold case, improve simultaneously the tension of pipeline and take off and high sealing performance.
The utility model is to realize by following technological scheme:
Novel connecting pipe fitting, its structure is made of: metal tube, bellows, joint flange sheet, and wherein the two ends of bellows are welded with two metal tubes, and the in addition two ends of two metal tubes are welded with two joint flange sheets.
Described bellows, its structure is made of metallic sheath, slip joint, and wherein the two ends of slip joint are welded with two metallic sheaths, by two metallic sheaths two metal tubes is welded and fixed, bellows is to adopt thin-wall stainless steel to suppress into bellows-shaped, makes it have the Telescopic of certain flexibility.
Described joint flange sheet, its place, two ends is provided with two screws, is bolted.
Described slip joint, its have flexible, bending come to pipe fitting carry out axially, laterally, angular compensatory, reduce vibration equipment to the effects such as impact of pipeline.
Owing to adopted above technological scheme, be compared with existing technology, the beneficial effect that the utlity model has is:
1, the utility model pulling-out force increases, and the reliability of connection is strengthened;
2, sealing strengthens, thereby steady quality can adapt to higher pressure and wider temperature range.
3, the assembling cooperation is tightr, and sealability is effectively improved.
Description of drawings
Fig. 1, be structural representation of the present utility model.
Fig. 2, be the structural representation of bellows in the utility model.
Wherein: 1-screw, 2-metal tube, 3-bellows, 4-joint flange sheet, 31-slip joint, 32-metallic sheath.
Embodiment:
Below in conjunction with drawings and Examples structure of the present utility model and working procedure are described further:
As shown in Figure 1, 2, Novel connecting pipe fitting, its structure is made of: metal tube 2, bellows 3, joint flange sheet 4, and wherein the in addition two ends that are welded with 2, two metal tubes 2 of two metal tubes, the two ends of bellows 3 are welded with two joint flange sheets 4.
Described bellows 3, its structure is made of metallic sheath 32, slip joint 31, wherein the two ends of slip joint 31 are welded with two metallic sheaths 32, by two metallic sheaths 32 two metal tubes 2 are welded and fixed, bellows 3 is to adopt thin-wall stainless steel to suppress into bellows-shaped, makes it have the Telescopic of certain flexibility.
Described joint flange sheet 4, its place, two ends is provided with two screws 1, is bolted.
Described slip joint 31, its have flexible, bending come to pipe fitting carry out axially, laterally, angular compensatory, reduce vibration equipment to the effects such as impact of pipeline.
It should be noted that at last: above specification is only in order to illustrate the technical solution of the utility model and use characteristic, although this specification has been described in detail the utility model with reference to the above embodiments, but, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from technological scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (3)
1. Novel connecting pipe fitting, its structure is made of: metal tube (2), bellows (3), joint flange sheet (4), it is characterized in that: wherein the two ends of bellows (3) are welded with two metal tubes (2), and the in addition two ends of two metal tubes (2) are welded with two joint flange sheets (4).
2. Novel connecting pipe fitting as claimed in claim 1, it is characterized in that: described bellows (3), its structure is made of metallic sheath (32), slip joint (31), wherein the two ends of slip joint (31) are welded with two metallic sheaths (32), by two metallic sheaths (32) two metal tubes (2) are welded and fixed.
3. Novel connecting pipe fitting as claimed in claim 1 is characterized in that: described joint flange sheet (4), its place, two ends is provided with two screws (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399405 CN202812550U (en) | 2012-08-13 | 2012-08-13 | Novel connecting pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399405 CN202812550U (en) | 2012-08-13 | 2012-08-13 | Novel connecting pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812550U true CN202812550U (en) | 2013-03-20 |
Family
ID=47871420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220399405 Expired - Fee Related CN202812550U (en) | 2012-08-13 | 2012-08-13 | Novel connecting pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812550U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506619A (en) * | 2018-05-18 | 2018-09-07 | 江苏雪旺制冷科技有限公司 | A kind of scalable connecting tube |
| CN114713728A (en) * | 2022-03-30 | 2022-07-08 | 新疆大学 | Ultralow temperature plastic connection method and ultralow temperature plastic connection device for aluminum alloy thin-wall pipe and thin-wall flange |
| CN115899035A (en) * | 2022-12-07 | 2023-04-04 | 核工业理化工程研究院 | Omega-shaped metal ring for connecting thin-wall circular tube, omega-shaped metal ring and composite material thin-wall circular tube assembly and forming method thereof |
-
2012
- 2012-08-13 CN CN 201220399405 patent/CN202812550U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506619A (en) * | 2018-05-18 | 2018-09-07 | 江苏雪旺制冷科技有限公司 | A kind of scalable connecting tube |
| CN114713728A (en) * | 2022-03-30 | 2022-07-08 | 新疆大学 | Ultralow temperature plastic connection method and ultralow temperature plastic connection device for aluminum alloy thin-wall pipe and thin-wall flange |
| CN115899035A (en) * | 2022-12-07 | 2023-04-04 | 核工业理化工程研究院 | Omega-shaped metal ring for connecting thin-wall circular tube, omega-shaped metal ring and composite material thin-wall circular tube assembly and forming method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130813 |