CN205226693U - Blast pipe lap joint flange connection structure for car - Google Patents
Blast pipe lap joint flange connection structure for car Download PDFInfo
- Publication number
- CN205226693U CN205226693U CN201521106979.7U CN201521106979U CN205226693U CN 205226693 U CN205226693 U CN 205226693U CN 201521106979 U CN201521106979 U CN 201521106979U CN 205226693 U CN205226693 U CN 205226693U
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- China
- Prior art keywords
- flange
- annular
- lap joint
- joint flange
- exhaust pipe
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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 provides a simple structure, the lower blast pipe lap joint flange connection structure for car of manufacturing cost, this connection structure set up the profile of tooth structure of interlock each other on flange and two annular terminal surfaces that pipeline tip arch was laminated mutually under the precondition of guaranteeing pipeline joint strength and leakproofness, this profile of tooth structure can be to the be connected positioning action of flange with the pipeline, effective ascension pipe flange joint's efficiency, the maintenance cost in reduction later stage.
Description
Technical field
The utility model belongs to automobile technical field, is specifically related to a kind of automobile exhaust pipe lap joint flange linkage structure.
Background technique
At present, the connection of automobile exhaust pipeline adopts Flange joint usually.Traditional Flange joint is disclosed in the Chinese utility model patent " Authorization Notice No.: CN204099778U; authorized announcement date: on 01 14th, 2015; name is called: a kind of gas exhaust tube flange structure and automobile ": the end of two pipelines is welded with a flange respectively, two flanges are bolted on together, complete the docking of two pipelines with this.It is simple that this Placement possesses structure, is easy to the advantage realized, but also there is linkage structure itself and cannot absorb assembly error, easily because to manufacture and assembly error causes exhaust gas leakage, and the defect that product manufacturing required precision is high.
Chinese utility model patent " Authorization Notice No.: CN203560628U, authorized announcement date: on 04 23rd, 2014, name was called: a kind of vacuum butterfly valve Flange joint guiding device " discloses a kind of lap joint flange linkage structure.This linkage structure, due to himself structure, under the prerequisite ensureing sealing and join strength, effectively can absorb assembling and foozle, reduce product to the requirement of accuracy of manufacturing, reduce manufacture cost.But the piping flange linkage structure of this structure still exist assembling consuming time, the defect that maintenance cost is high.
Chinese utility model patent " Authorization Notice No.: CN203835517U; authorized announcement date: on 09 17th, 2014; name is called: a kind of flange fixing device and automobile " discloses a kind of flange fixing device of clamp band type, and this device utilizes the clip be fastened on two flange peripheries to realize the connection of two flanges.It is convenient that this device possesses installation, and the advantage that manufacturing efficiency is high, but the feature being limited to clip self structure, exist sealing effect difference, cannot bear larger radial force, the shortcoming of fragile distortion.
Summary of the invention
The purpose of this utility model be for existing piping flange linkage structure under the condition ensureing sealing effect and join strength, the quick assembling of link cannot be realized, assemble consuming time, the defect that maintenance cost is high, there is provided a kind of structure simple, assembling is quick, manufactures maintenance cost low, join strength is high, the automobile exhaust pipe lap joint flange linkage structure of good sealing effect.
For achieving the above object, technical solution of the present utility model is:
A kind of automobile exhaust pipe lap joint flange linkage structure, comprise outlet pipe and the flange of kink connection, the end of described outlet pipe is provided with annular boss, the external diameter of described annular boss is greater than the diameter of pore in the middle part of the external diameter of outlet pipe body and described flange, described middle part pore is coaxially provided with near the aperture place of outlet pipe end the annular concave platform matched with annular boss, and two annular end faces that described annular concave platform and annular boss fit are corresponding is provided with the tooth-shape structure that can mutually be engaged.
Further, correspondingly on two annular end faces that described annular concave platform and annular boss fit more than the three groups double wedges and groove that can mutually be engaged are provided with.
Further, the double wedge in described tooth-shape structure and the equal decile of groove are distributed on the annular end face at its place.
Further, the groove depth of described tooth-shape structure is 0.5 millimeter ~ 2.0 millimeters.
Further, the degree of depth of described annular concave platform is less than or equal to the thickness of annular boss structure.
Further, on described flange, decile is distributed with plural attachment hole.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model provides the automobile exhaust pipe lap joint flange linkage structure that a kind of structure is simple, manufacture cost is lower, this linkage structure is under the precondition ensureing pipeline join strength and sealing, two annular end faces that flange and pipe end projection fit have additional the tooth-shape structure that can mutually be engaged, this tooth-shape structure can play a positioning action to the connection of flange and pipeline, can the efficiency of effective riser tubing Flange joint, reduce the maintenance cost in later stage;
2, flange is corresponding with on two annular end faces that pipe end projection fits is provided with more than the three groups double wedges and groove that can mutually be engaged, the position structure (single double wedge and single groove are one group) of more than three groups, effectively can ensure the coaxality of flange and pipeline, assembly error can be reduced further, ensure its sealability;
3, the degree of depth of annular concave platform is less than or equal to the thickness of annular boss structure, tights a bolt, and by the pretightening force of bolt, effectively can promote the sealing effect of docking pipeline.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the front view of flange;
Fig. 3 be in Fig. 2 A-A to sectional view;
Fig. 4 is sectional view of the present utility model;
Fig. 5 is the enlarged view at I place in Fig. 4;
In figure, outlet pipe 1, flange 2, attachment hole 3, flange body 4, tooth type structures 5, annular concave platform 6, outlet pipe body 7, annular boss 8.
Embodiment
Illustrate below in conjunction with accompanying drawing and with specific embodiment, the utility model to be described in further detail.
See Fig. 1 to Fig. 5, a kind of automobile exhaust pipe lap joint flange linkage structure, comprise outlet pipe 1 and the flange 2 of kink connection, the end of outlet pipe 1 is provided with annular boss 8, the flange body 4 of flange 2 generally adopts the thick steel plate materials punching press of 8-12mm or machining to make, the external diameter of annular boss 8 is greater than the diameter of pore in the middle part of the external diameter of outlet pipe body 7 and described flange 2, middle part pore is coaxially provided with the annular concave platform 6 matched with annular boss 8 near the aperture place of outlet pipe 1 end, annular concave platform 6 is corresponding with two annular end faces that annular boss 8 fits is provided with the tooth-shape structure 5 that can mutually be engaged.During use, annular boss 8 is placed in the annular concave platform 6 of flange 2, and the tooth-shape structure 5 of occlusion mutually can carry out spacing to flange 2 and exhaust pipe 7, makes the assembling of outlet pipe become more convenient.
As preferred technological scheme, annular concave platform 6 is corresponding with on two annular end faces that annular boss 8 fits is provided with more than the three groups double wedges and groove that can mutually be engaged.The limit structure (single double wedge and single groove are one group) of more than three groups can realize the co-axially align of flange and exhaust pipe 7 accurately, effectively can avoid the generation of assembly error.
As preferred technological scheme, the double wedge in tooth-shape structure 5 and the equal decile of groove are distributed on the annular end face at its place.Double wedge in tooth-shape structure 5 and groove also may correspond to the arbitrary position being arranged on two annular end faces, as long as it is spacing to realize flange 2 and pipeline.
As preferred technological scheme, the groove depth of tooth-shape structure 5 is 0.5 millimeter ~ 2.0 millimeters.
As preferred technological scheme, the degree of depth of annular concave platform 6 is less than or equal to the thickness of annular boss structure 8, and after two pipelines are connected, the pretightening force by bolt carrys out the sealing effect of riser tubing joint.
As preferred technological scheme, on flange 2, decile is distributed with plural attachment hole 3, and flange 2 can be holes flange, three-hole flange or four hole flanges etc.
Be sleeved on after on annular boss 8 until flange 2, utilize the bolt through attachment hole 3 to be connected with engine supercharger, catalytic muffler or second exhaust pipe by pipeline 1, make vent systems connect into an entirety.
Above content is the further description done the utility model in conjunction with embodiment; can not think that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; the simple replacement made, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. an automobile exhaust pipe lap joint flange linkage structure, comprise outlet pipe (1) and the flange (2) of kink connection, the end of described outlet pipe (1) is provided with annular boss (8), the external diameter of described annular boss (8) is greater than the external diameter of outlet pipe body (7) and the diameter of described flange (2) middle part pore, described middle part pore is coaxially provided with the annular concave platform (6) matched with annular boss (8) near the aperture place of outlet pipe (1) end, it is characterized in that: described annular concave platform (6) is corresponding with two annular end faces that annular boss (8) fits is provided with the tooth-shape structure (5) that can mutually be engaged.
2. a kind of automobile exhaust pipe lap joint flange linkage structure according to claim 1, is characterized in that: described annular concave platform (6) is corresponding with on two annular end faces that annular boss (8) fits is provided with more than the three groups double wedges and groove that can mutually be engaged.
3. a kind of automobile exhaust pipe lap joint flange linkage structure according to claim 1, is characterized in that: the double wedge in described tooth-shape structure (5) and the equal decile of groove are distributed on the annular end face at its place.
4. a kind of automobile exhaust pipe lap joint flange linkage structure according to claim 1, is characterized in that: the groove depth of described tooth-shape structure (5) is 0.5 millimeter ~ 2.0 millimeters.
5. a kind of automobile exhaust pipe lap joint flange linkage structure according to claim 1, is characterized in that: the degree of depth of described annular concave platform (6) is less than or equal to the thickness of annular boss (8).
6. a kind of automobile exhaust pipe lap joint flange linkage structure according to claim 1, is characterized in that: the upper decile of described flange (2) is distributed with plural attachment hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106979.7U CN205226693U (en) | 2015-12-25 | 2015-12-25 | Blast pipe lap joint flange connection structure for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106979.7U CN205226693U (en) | 2015-12-25 | 2015-12-25 | Blast pipe lap joint flange connection structure for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226693U true CN205226693U (en) | 2016-05-11 |
Family
ID=55901759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521106979.7U Expired - Fee Related CN205226693U (en) | 2015-12-25 | 2015-12-25 | Blast pipe lap joint flange connection structure for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757134A (en) * | 2018-05-14 | 2018-11-06 | 潍柴动力股份有限公司 | A kind of connection structure, diesel engine exhaust system and diesel engine |
-
2015
- 2015-12-25 CN CN201521106979.7U patent/CN205226693U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757134A (en) * | 2018-05-14 | 2018-11-06 | 潍柴动力股份有限公司 | A kind of connection structure, diesel engine exhaust system and diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190201 Address after: 441004 No. 19 Checheng Hubei Road, Xiangyang High-tech Zone, Hubei Province Patentee after: DONGFENG XIANGYANG TOURING CAR CO., LTD. Address before: 430056 Dongfeng Road, Wuhan economic and Technological Development Zone, Hanyang District, Wuhan, Hubei 10 Patentee before: Dongfeng Commercial Vehicle Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20191225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |