CN205978873U - Flexible pipe fitting of automobile - Google Patents
Flexible pipe fitting of automobile Download PDFInfo
- Publication number
- CN205978873U CN205978873U CN201620969672.8U CN201620969672U CN205978873U CN 205978873 U CN205978873 U CN 205978873U CN 201620969672 U CN201620969672 U CN 201620969672U CN 205978873 U CN205978873 U CN 205978873U
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- CN
- China
- Prior art keywords
- telescopic joint
- pipe fitting
- flexible pipe
- bellows
- automobile flexible
- Prior art date
- 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.)
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Abstract
The utility model discloses a flexible pipe fitting of automobile belongs to automobile spare and accessory part manufacturing field, including end cover and the endotheca that cup joints in proper order from inside to outside, bellows and outer net, two end covers have been cup jointed to the outside at outer net both ends, and the bellows has the fold structures who forms with the wave form, and the endotheca only includes the telescopic joint that twists and form through the spiral, and the telescopic joint includes the spire of two at least similar " is similar to " shapes, and the mutual lock of adjacent spire forms the recess, and telescopic joint length is the same with bellows length. The endotheca adopts the telescopic joint of novel structure, saves two intermediate members and relevant process, very big improvement efficiency, reduced material cost simultaneously, the outer net adopts mesh formula weaving manner, has not only saved the material, and completion that can also be timely is dispelled the heat, further optimizes the noise reduction effect. The bilge construction adopts the recessed bellows structure of intermediate part through optimizing the experiment in the bellows, and the noise reduction effect improves to some extent.
Description
Technical field
This utility model is related to auto-parts and manufactures field, the simple new automobile flexible pipe of more particularly, to a kind of structure
Part.
Background technology
Automobile flexible pipe fitting is a kind of compensation device being arranged between automobile engine to exhaust outlet and acoustic filter.Its master
In addition to the noise except reducing electromotor of syllabus, also it is used to compensate for automobile exhaust pipe and causes because expanding with heat and contract with cold in use
Axial displacement, and reduce automobile exhaustor in motor process and be given a shock the probability of damage.
At present, with the growth slowdown of China Auto Market, thus auto parts and components market is also into new normality.Due to
Cost pressure increases increasingly, optimizes component structural further, realizes cost efficiency on the premise of not reducing parts performance,
Increasingly become the inexorable trend of enterprise development.Chinese patent CN201410085210 discloses a kind of automobile flexible pipe fitting, such as
Shown in Fig. 1-Fig. 2, including corrugated tube 2, inner sleeve 1 (also known as linkage component) and outer net 3 (also known as braided members), wherein inner sleeve 1 by
Two intermediate members 11 at two ends and telescopic joint 12 after totally three parts sockets through being welded, there are the following problems：
Existing telescopic joint adopts the technique of plasma cutting mostly, easily forms larger end in telescopic joint two ends port
Difference, thus needing to carry out making up adjustment by respectively inserting and weld an intermediate member at telescopic joint two ends, and intermediate member
The other end and bellows-welding, in actual manufacture process, using manually welding, welding deformation is big, and weld exists
Problem of stress concentration, and the length dimension of manual welding is difficult to adjust and controls.The length of telescopic joint will be significantly less than corrugated tube
Length, thus also result in telescopic joint within the flexible pipe after assembling with respect to this flexible pipe two-port midpoint not
Symmetrically, the actually used of corrugated tube can to cause to perplex, for example, so that two under the use scene of some other devices of joint
Individual port does not enable to exchange replacement.
To sum up, existing automobile flexible pipe fitting complex procedures, properties of product undulatory property is big, also brings inconvenience to using.
Utility model content
Main purpose of the present utility model is to disclose a kind of automobile flexible pipe fitting, to change to existing flexible pipe
Enter.
For achieving the above object, this utility model provides a kind of automobile flexible pipe fitting, including end cap and from inside to outside according to
The inner sleeve of secondary socket, corrugated tube and outer net, the outside at described outer net two ends is socketed with two end caps, and described corrugated tube has with wave
The pleated structure that form is formed, described inner sleeve only includes the telescopic joint of formation that twists through spiral, and described telescopic joint includes at least two
The spire of individual similar " ∽ " shape, adjacent described spire mutually fastens and forms groove, described telescopic joint length and ripple
Length of tube is identical.Original inner sleeve is not only made up of three parts and is reduced to a part by this kind of structure, has saved material, has carried
High efficiency, and telescopic joint, using after the spire fastening structures of multiple similar " ∽ " shapes, not only ensure that telescopic joint
Flexibility, can preferably a part of noise closing of the formation of exhaust emissions be eliminated in " ∽ " shaped interior meanwhile.And it is described
Telescopic joint length is identical with the length of corrugated tube, can directly press or weld after socket.
Thereby, the automobile flexible pipe fitting in this utility model, inner sleeve saves two intermediate members, thus simplifying related work
Sequence, greatly improves efficiency, reduces material cost simultaneously, and the length of telescopic joint is identical with Bellows Length, is easy to both
Assembling, and also facilitate two ports to realize exchanging replacement.
Further, described telescopic joint both ends are provided with anti-release member, and the purpose of this kind of structure is fixing telescopic joint, prevents from stretching
Casing coupling is loose.
Further, described anti-release member is through merging, around the welding of telescopic joint end edge, the welding anti-release member being formed, should
The welding anti-release member planting technique formation achieves the loosening function of telescopic joint simple and practically.
Further, described outer be evenly equipped with braided mesh on the net, braided mesh can not only play fixation, and saves
Material, improves the radiating effect of pipe fitting, optimizes noise reduction further.
Further, the braided mesh of described outer net is in polygonized structure.
Further, described polygonized structure is hexagonal structure, and this kind of version can preferably save material, carry
High heat dispersion, also has higher intensity simultaneously.
Further, it is provided with a depression bellows portion with respect to adjacent part depression in the middle part of described corrugated tube, should
Plant the structure that corrugated tube is after optimizing, it is more excellent that it reduces the effect of noise.
Further, the 304 stainless steel material thickness that described corrugated tube, telescopic joint adopt are 0.1mm-0.3mm, Jing Guofang
True calculate, under this thickness, can take into account light-weighted on the basis of can guarantee that other performances such as intensity.Price is more cheap, and
Under this thickness, the properties of pipe fitting reach requirement, and meanwhile, this kind of material is stainless using 321 with respect to current corrugated tube
Steel material and 1.4828 materials of telescopic joint employing, with more cost advantage.
Further, the 304 stainless steel material thickness that described corrugated tube, telescopic joint adopt are 0.2mm, and this kind of thickness is city
Conventional material on field, it is easy to buying, can be taken into account cost and lightweight etc. simultaneously and require.
This utility model has the advantages that：
1st, inner sleeve adopts single formula telescopic joint, global formation, saves two intermediate members, greatly improves efficiency, with
When reduce material cost；
2nd, outer net adopt mesh-type weaving manner, not only save material, improve the pliable and tough compensation performance of pipe fitting moreover it is possible to
Timely complete to radiate, optimize noise reduction further.
3rd, through optimization experiment, using the bellows structure that pars intermedia is recessed, noise reduction increases bellows structure.
Below with reference to accompanying drawings, this utility model is described in further detail.
Brief description
The accompanying drawing constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used for explaining this utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is prior art automobile flexible fitting structure schematic diagram；
Fig. 2 is the inner sleeve structural representation of prior art automobile flexible pipe fitting；
Fig. 3 is automobile flexible fitting structure schematic diagram disclosed in this utility model preferred embodiment；
Fig. 4 is expansion joint structure schematic diagram disclosed in this utility model preferred embodiment；
Fig. 5 is telescopic joint spire structural representation disclosed in this utility model preferred embodiment
Specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model can be by right
The multitude of different ways limiting and covering is required to implement.
This utility model embodiment discloses a kind of automobile flexible pipe fitting first, as shown in Figure 3-Figure 5, including end cap 4 and from
Interior to the inner sleeve 1, corrugated tube 2 and the outer net 3 that are socketed successively outward, the outside at outer net 3 two ends is socketed with two end caps 4, and corrugated tube 2 has
The pleated structure being formed with wave pattern, inner sleeve 1 only include through spiral twist formation telescopic joint (for ease of description, such as no special
Do not declare, be subsequently directed to " inner sleeve " described by technical solutions of the utility model and be equivalent to " telescopic joint "), telescopic joint includes many
The spire 122 of individual similar " ∽ " shape, adjoining spiral portion mutually fastens and is formed groove 121, telescopic joint length and corrugated tube 2
Length is identical.Original inner sleeve 1 is not only made up of three parts and is reduced to a part by this kind of structure, has saved material, has carried
High efficiency, and telescopic joint, using after spire 122 fastening structures of multiple similar " ∽ " shapes, not only ensure that flexible
The flexibility of section, meanwhile, can preferably by exhaust emissions when a part of noise closing that formed eliminate in " ∽ " shaped interior, acquirement
Unexpected effect.And telescopic joint length is identical with the length of corrugated tube 2, can directly press after socket or weld.
Inner sleeve 1 length is identical with the length of corrugated tube 2, and in the present embodiment, anti-release member 13 is by melting in the welding in a week of its notching edge
Close the anti-DNA releaxed circular DNA of welding being formed, after simulation optimization, the 304 corrosion resistant plate materials using 0.2mm thickness make this inner sleeve 1,
Other performances such as intensity can be can guarantee that on the basis of taking into account lightweight target and cost.Price is more cheap, and in this thickness
Under, the properties of pipe fitting reach requirement, and meanwhile, this kind of material adopts 321 not with respect to corrugated tube 2 existing in documents
Rust Steel material and 1.4828 materials of inner sleeve 1 employing, with more cost advantage.Not only original inner sleeve is made up of three parts
It is reduced to a part, has saved material, improve efficiency, anti-release member can preferably make inner sleeve 1 form rock-steady structure simultaneously,
Will not be loose.In this utility model, above-mentioned corrugated tube 2 adopts hydraulic pressure mode by the 304 material pipe fitting extrusion moldings of 0.2mm, can
Choosing, other hydraulic way can be adopted, by plastic deformation mode molding.In the present embodiment, it is provided with the middle part of corrugated tube 2
One depression bellows portion with respect to adjacent part depression, this kind of corrugated tube 2 is the structure after optimizing, through test,
Effect using its reduction noise after this kind of structure is more excellent, achieves unexpected effect.Outer net 3 adopts generally in the art
Metal wire knitted technique completes, and the end cap at outer net 3 two ends can obtain this structure in the way of using punching press.In the present embodiment
In, outer net 3 is evenly equipped with braided mesh, outer net is fitted in the outside of corrugated tube 2, using the outer web frame of braided mesh, not only
Can material-saving, increase the flexible compensation ability of this automobile flexible pipe fitting, also allow for the heat in this flexible pipe simultaneously
Timely conduct in the air, increased its heat dispersion, and timely heat sinking function is more beneficial for the reality of decrease of noise functions raising
Existing.Preferably, the hexagonal structure of the braided mesh of outer net 3, this kind of structure is similar to honeycomb structure, is a kind of biomimetic features,
In the case of reducing weight, there is larger intensity.
Then, the utility model discloses the manufacture method of above-mentioned automobile flexible pipe fitting, comprise the following steps：
Inner sleeve 1 is cut using the cutting mode of laser and nitrogen protective gas, inner sleeve 1 flush edge after cutting
There is no burr, and greatly reduce the generation cutting dust, improve the working environment of working site, exactly because swashing yet
Light cutting can be accurately controlled the cutting accuracy of inner sleeve 1, end difference is stably controlled in target error, from without logical
Cross connect other intermediate members come to compensate ensure this automobile flexible pipe fitting end poor.
After dicing inner sleeve 1 two ends notching edge carry out within one week welding merge, the mode in conjunction with above-mentioned cut it is ensured that
Inner sleeve 1 fixing of edge and be difficult loose, thus we can remove original two intermediate member 11.Production process thus
Reduce, output increases, and is greatly improved production efficiency, thus reducing manufacturing cost.Simultaneously in final assembling, due to interior
Cover the neatly smooth of otch, greatly effectively poor in control port end；
Adopt pressing mode to fix both ends after end cap 4, inner sleeve 1, corrugated tube 2 and outer net 3 are socketed, form final producing
Product.
And in inner sleeve 1 molding procedure, as shown in figure 5, the present embodiment uses metallic plate twist through spiral
Molding mode, and two neighboring " ∽ " shape spire connects by the way of fastening, this kind of mode can form stable well
Interior nested structure, and possess larger flexibility.
After enforcement, output improves 2000/per tour up till now by 1800/per tour before to this utility model, real
Show the purpose of cost efficiency.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvement made etc., should be included within protection domain of the present utility model.
Claims (9)
1. a kind of automobile flexible pipe fitting, the inner sleeve being socketed from inside to outside including end cap and successively, corrugated tube and outer net, described outer net
The outside at two ends is socketed with two end caps, and described corrugated tube has the pleated structure being formed with wave pattern it is characterised in that described
Inner sleeve only includes the telescopic joint of formation that twists through spiral, and described telescopic joint includes the spire of at least two similar " ∽ " shapes,
Adjacent described spire mutually fastens and forms groove, and described telescopic joint length is identical with Bellows Length.
2. automobile flexible pipe fitting according to claim 1 is it is characterised in that described telescopic joint both ends are provided with anti-release member.
3. automobile flexible pipe fitting according to claim 2 is it is characterised in that described anti-release member is through around telescopic joint end
The welding anti-release member being formed is merged in edge welding.
4. automobile flexible pipe fitting according to claim 1 is it is characterised in that described outer be evenly equipped with braided mesh on the net.
5. automobile flexible pipe fitting according to claim 4 is it is characterised in that the braided mesh of described outer net is in polygon knot
Structure.
6. automobile flexible pipe fitting according to claim 5 is it is characterised in that described polygonized structure is hexagonal structure.
7. automobile flexible pipe fitting according to claim 1 is it is characterised in that be provided with one relatively in the middle part of described corrugated tube
Depression bellows portion in adjacent part depression.
8. automobile flexible pipe fitting according to claim 1 it is characterised in that described corrugated tube, telescopic joint adopt 304 not
Rust Steel material thickness is 0.1mm-0.3mm.
9. automobile flexible pipe fitting according to claim 8 it is characterised in that described corrugated tube, telescopic joint adopt 304 not
Rust Steel material thickness is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620969672.8U CN205978873U (en) | 2016-08-29 | 2016-08-29 | Flexible pipe fitting of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620969672.8U CN205978873U (en) | 2016-08-29 | 2016-08-29 | Flexible pipe fitting of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978873U true CN205978873U (en) | 2017-02-22 |
Family
ID=58037101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620969672.8U Expired - Fee Related CN205978873U (en) | 2016-08-29 | 2016-08-29 | Flexible pipe fitting of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978873U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195470A (en) * | 2016-08-29 | 2016-12-07 | 长沙成进汽车配件有限公司 | A kind of automobile flexible pipe fitting and manufacture method thereof |
| CN114341539A (en) * | 2019-08-28 | 2022-04-12 | 泰克尼普N电力公司 | Flexible pipe with radial gas channels, method for the production thereof and use thereof |
-
2016
- 2016-08-29 CN CN201620969672.8U patent/CN205978873U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195470A (en) * | 2016-08-29 | 2016-12-07 | 长沙成进汽车配件有限公司 | A kind of automobile flexible pipe fitting and manufacture method thereof |
| CN114341539A (en) * | 2019-08-28 | 2022-04-12 | 泰克尼普N电力公司 | Flexible pipe with radial gas channels, method for the production thereof and use thereof |
| CN114341539B (en) * | 2019-08-28 | 2023-04-04 | 泰克尼普N电力公司 | Flexible pipe with radial gas channels, method for the production thereof and use thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20210829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |