CN206072600U - A kind of pipe joint sealing structure with flange - Google Patents
A kind of pipe joint sealing structure with flange Download PDFInfo
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- CN206072600U CN206072600U CN201620771568.8U CN201620771568U CN206072600U CN 206072600 U CN206072600 U CN 206072600U CN 201620771568 U CN201620771568 U CN 201620771568U CN 206072600 U CN206072600 U CN 206072600U
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- flange
- pipe
- enlarging
- ring flange
- sealing structure
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Abstract
This utility model is related to a kind of pipe joint sealing structure with flange, including：Ring flange and the pipe being connected with the ring flange, the mouth of pipe of the pipe is provided with the flange of pipe enlarging and doubling, described flange includes the plane of flattening vertical with tube center axis and face of turning back, and described ring flange is provided with the ring flange enlarging matched with the pipe enlarging and the groove matched with flange.This utility model is using double-deck overlapping flange, with the housing collective effect of ring flange and external structure, define elastic hard sealing, and be between ring flange and the mouth of pipe, to form interference fit, further seal, make sealing effectiveness more preferably, the welded seal between conventional flange disk and pipe, stress concentration and deformation that welding is caused are eliminated, sealing is more consolidated effective.
Description
Technical field
This utility model is related to a kind of pipe joint sealing structure with flange, is a kind of sealing for pipe joint position
Attachment structure, is the mechanical connecting structure of a kind of pipe and ring flange, is that one kind is applied to oil return pipe of supercharger and waste gas recirculation
The attachment structure of pipe and ring flange in the pipeline of system.
Background technology
For lubricating oil is back in oil sump, one end of oil return pipe of supercharger leads to Diesel engine oil return pipe of supercharger
Cross flange to be connected with supercharger, the other end inserts the oilhole of engine cylinder-body.Existing oil return pipe of supercharger, majority are by flange
Welded with oil return tube body, which increased the cost of erection welding, will to the roughness and flatness of flange sealing surface
Ask high, it is difficult to control.And need to increase pad to meet seal request, high cost.Also have oil return pipe sheet in current technology
Body flange and flange connection, but, on the one hand, flange of the prior art is monolayer flange, on the other hand, for convenience of assembling,
There is certain interval between flange and pipeline body, when electromotor runs, in the dither, oil return tube body is turned over pipeline
Stress concentration can be formed at side, causes oil return tube body to rupture.The pressurizer oil composite pipe tightness of both structures is not enough, intensity
Not enough, and high cost.
The content of the invention
In order to overcome problem of the prior art, the utility model proposes a kind of pipe joint sealing structure with flange.Institute
The sealing structure shown has abandoned the welding manner of conventional flange disk and pipe joint structure, takes the cooperation of interference, sealing effectiveness
More preferably.
What the purpose of this utility model was realized in：A kind of pipe joint sealing structure with flange, including：Ring flange and
The pipe being connected with the ring flange, the mouth of pipe of the pipe are provided with the flange of pipe enlarging and doubling, described flange include with
The vertical plane of flattening of tube center axis and face of turning back, described ring flange are provided with the ring flange enlarging matched with the pipe enlarging
And the groove matched with flange.
Further, described pipe enlarging and ring flange enlarging interference fit.
Further, described ring flange enlarging is rounding enlarging, and described pipe enlarging is tapered enlarging.
Further, the taper of described conical taper is：2 °～10 °.
Further, thickness of the depth of described groove less than flange.
Further, the described plane of flattening is contacted with bottom portion of groove.
Further, described face of turning back is contacted with bottom portion of groove.
This utility model produce beneficial effect be：This utility model using double-deck overlapping flange, with ring flange and outward
The housing collective effect of portion's structure, defines elastic hard sealing, and makes interference fit is formed between ring flange and the mouth of pipe, further
Sealing, makes sealing effectiveness more preferably, the welded seal between conventional flange disk and pipe, eliminate the stress concentration that causes of welding and
Deformation, makes sealing more consolidate effective.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of sealing structure described in embodiment of the present utility model；
Fig. 2 is flaring structure schematic diagram described in embodiment of the present utility model, three, it is shown that ring flange and pipe point
From state, be the enlargement decomposition of A points in Fig. 1；
Fig. 3 is flaring structure schematic diagram described in embodiment of the present utility model three, it is shown that ring flange and pipe assembling
State together, is the enlarged drawing of A points in Fig. 1；
Fig. 4 is the structural representation of flange described in embodiment of the present utility model eight.
Specific embodiment
Embodiment one：
The present embodiment is a kind of pipe joint sealing structure with flange, as shown in Figure 1, 2, 3.The present embodiment includes：Flange
Disk 1 and the pipe 2 being connected with the ring flange, the mouth of pipe of the pipe are provided with pipe enlarging 201 and flange 202, described flange
Including the plane of flattening 2021 vertical with tube center axis and face 2022 of turning back, described ring flange is provided with and the pipe enlarging phase
The ring flange enlarging 101 matched somebody with somebody and the groove 102 matched with flange.
Pipe joint described in the present embodiment is a kind of sealing structure with ring flange, i.e.,：Pipe is combined into ring flange
Integrally, ring flange is bolted on the outer structural parts such as the shell of supercharger or heat exchanger again, or is managed with other
The structural member 3 of the joint flange disk connection of son（See Fig. 1）On.
Pipe described in the present embodiment is hard tube, is that one kind can tolerate high moderate pressure, and has good ductility
With the metal pipe of certain elasticity, it can be the metal pipe of the materials such as steel, copper, aluminum.
Described ring flange be all metal material composition, can it is identical from the material of pipe can also be different.Such as：Ring flange
Steel are adopted, and pipe adopts copper material.
To solve the sealing between the mouth of pipe and outer structural parts（This is critical seal）, in the case of particularly having pressure in pipe
Sealing, the present embodiment take a kind of sealing of squash type, and this is a kind of hard sealing with metallic elastic deformation.In ring flange
The upper annular groove for arranging sealing, this annular groove are centered around through around the hole of the mouth of pipe.Flange is set on the mouth of pipe.
Flange is two-layer, and one layer is that enlarging is turned-out, is translated in the plane vertical with the gyration central axis of enlarging, forms the plane of flattening
Flange, then again to turning in, turns to parallel with the plane of flattening, and formation is turned back the flange in face, at this moment the flange of the plane of flattening and face of turning back
Flange overlap, formed two-layer flange.In assembling, two-layer flange is entered in the annular groove of ring flange.Pass through in ring flange
When being bolted on outer structural parts, the housing of outer structural parts forms pressure to the two-layer flange in ring flange cannelure
Power, makes two-layer flange produce elastic deformation, forms sealing.Two-layer flange can form bilevel convex when turning over processed
Rise, i.e. plane is without very flat, but some are raised, the opposite direction of elastic deformation is pointed in raised direction, to produce more
Elastic deformation space.
Two-layer flange has two kinds of selections：Turn over upwards and turn over downwards.Specifically：Turn over upwards and refer to, face pressure of turning back is being prolonged
On developable surface；Turn over downwards and refer to, the plane of flattening is pressed on the face of turning back.
To make sealing more efficient, the present embodiment also takes a kind of auxiliary seal mode：Arrange in the mouth of pipe of pipe and expand
Mouthful, ring flange is also provided with corresponding enlarging, and the enlarging of ring flange is interference fit with the enlarging of the mouth of pipe, to closed ring flange and
Gap between the mouth of pipe, prevents liquid or the micro leakage of gas.
Embodiment two：
The improvement of the present embodiment above-described embodiment, is refinement of the above-described embodiment with regard to enlarging sum.Described in the present embodiment
Pipe enlarging and ring flange enlarging interference fit.
Interference fit described in the present embodiment has two kinds, and a kind of is the enlarging in shape complete of ring flange and the mouth of pipe
Cause, interference fit is formed simply by the tolerance dimension of interference.Another kind is that the flare form of ring flange and the mouth of pipe is inconsistent, example
Such as：The enlarging of ring flange is rounding, the enlarging of the mouth of pipe be it is tubaeform, two kinds of flare forms it is inconsistent, form rounding to loudspeaker
The interference of the squash type of shape.Two ways can play good sealing effectiveness.
Embodiment three：
The improvement of the present embodiment above-described embodiment, is refinement of the above-described embodiment with regard to enlarging sum.Described in the present embodiment
Ring flange enlarging is rounding enlarging 101, and described pipe enlarging is tapered enlarging 201, as shown in Figure 2.
The rounding enlarging of ring flange is formed to pipe enlarging and is extruded, as shown in figure 3, similar to interference, making the micro change of pipe enlarging
Shape, forms sealing.
Example IV：
The present embodiment is three improvement of embodiment, is refinement of the embodiment three with regard to cone.Circle described in the present embodiment
The taper of taper enlargingαFor：2 °～10 °, as shown in Figure 2.
According to the diameter of pipe, the chamfering radius of ring flange, interference, the size of taper requires etc. that factor determines.
Embodiment five：
The present embodiment is the improvement of above-described embodiment, is refinement of the above-described embodiment with regard to groove.Described in the present embodiment
Thickness of the depth of groove less than flange.
So-called groove refers to, passes through the annular groove around the through hole of pipe, or be commonly called as step on ring flange.Groove can
To accommodate two flange stacked together, and be two side flangings in the pre-assembly slightly raised above groove some, so could be in dress
When being fitted in external structure, make the housing of external structure by two flange elasticity of compression deformations stacked together, formed close
Envelope.
Embodiment six：
The present embodiment is the refinement of embodiment five, is refinement of the embodiment five with regard to flange.Flange described in the present embodiment
The plane of flattening is contacted with bottom portion of groove.
After this is the enlarging outward flanging of a kind of mode of turning back of flange, i.e. pipe, it is to turn over upwards and turn back when turning back,
Its result is to turn back face pressure on the plane of flattening.During assembling, face of turning back is contacted with the housing of external structure, and the plane of flattening and groove
Base contacts, as shown in Figure 1, 2, 3.
Embodiment eight：
The present embodiment is the refinement of embodiment five, is refinement of the embodiment five with regard to flange.Flange described in the present embodiment
Face of turning back is contacted with bottom portion of groove, as shown in Figure 4.
After this is the enlarging outward flanging of the mode of turning back of another kind of flange, i.e. pipe, it is to turn over downwards and roll over when turning back
Return, its result is that the plane of flattening is pressed on the face of turning back.During assembling, the plane of flattening is contacted with the housing of external structure, and turn back face with it is recessed
The base contact of groove.
Finally it should be noted that above only unrestricted to illustrate the technical solution of the utility model, although with reference to compared with
Good arrangement has been described in detail to this utility model, it will be understood by those within the art that, can be to this reality
With new technical scheme（The shape of such as ring flange and pipe, shape of flange etc.）Modify or equivalent, and
Without departing from the spirit and scope of technical solutions of the utility model.
Claims (7)
1. a kind of pipe joint sealing structure with flange, including：Ring flange and the pipe being connected with the ring flange, its feature are existed
In the mouth of pipe of the pipe is provided with the flange of pipe enlarging and doubling, and described flange includes vertical with tube center axis prolonging
Developable surface and turn back face, described ring flange is provided with the ring flange enlarging that matches with the pipe enlarging and recessed with what flange matched
Groove.
2. sealing structure according to claim 1, it is characterised in that described pipe enlarging is matched somebody with somebody with ring flange enlarging interference
Close.
3. sealing structure according to claim 2, it is characterised in that described ring flange enlarging is rounding enlarging, described
Pipe enlarging be tapered enlarging.
4. sealing structure according to claim 3, it is characterised in that the taper of described taper enlarging is：2 °～10 °.
5. the sealing structure according to one of claim 1-4, it is characterised in that the depth of described groove is less than flange
Thickness.
6. sealing structure according to claim 5, it is characterised in that the described plane of flattening is contacted with bottom portion of groove.
7. sealing structure according to claim 5, it is characterised in that described face of turning back is contacted with bottom portion of groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620771568.8U CN206072600U (en) | 2016-07-21 | 2016-07-21 | A kind of pipe joint sealing structure with flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620771568.8U CN206072600U (en) | 2016-07-21 | 2016-07-21 | A kind of pipe joint sealing structure with flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206072600U true CN206072600U (en) | 2017-04-05 |
Family
ID=58425911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620771568.8U Active CN206072600U (en) | 2016-07-21 | 2016-07-21 | A kind of pipe joint sealing structure with flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206072600U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206626A (en) * | 2019-06-26 | 2019-09-06 | 东风汽车股份有限公司 | Self sealss structure and flange adjustable engine exhaust pipe |
| CN110220062A (en) * | 2019-04-17 | 2019-09-10 | 余姚市电波机械有限公司 | Pipe fitting connects sealing structure |
| CN110479864A (en) * | 2019-08-28 | 2019-11-22 | 成都雅恒制冷配件有限公司 | A kind of copper elbow crimping processing technology of heat exchanger of wall-hanging boiler |
| CN111166485A (en) * | 2018-11-13 | 2020-05-19 | 重庆金山医疗机器人有限公司 | Surgical auxiliary robot instrument long rod end fixing structure, instrument and fixing method |
| CN113523716A (en) * | 2021-06-22 | 2021-10-22 | 浙江中财管道科技股份有限公司 | Cold rolling device and cold rolling welding method for main pipe and branch pipe of stainless steel water separator |
| CN111166485B (en) * | 2018-11-13 | 2024-04-30 | 重庆金山医疗机器人有限公司 | Surgical auxiliary robot instrument long rod end fixing structure, instrument and fixing method |
-
2016
- 2016-07-21 CN CN201620771568.8U patent/CN206072600U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166485A (en) * | 2018-11-13 | 2020-05-19 | 重庆金山医疗机器人有限公司 | Surgical auxiliary robot instrument long rod end fixing structure, instrument and fixing method |
| CN111166485B (en) * | 2018-11-13 | 2024-04-30 | 重庆金山医疗机器人有限公司 | Surgical auxiliary robot instrument long rod end fixing structure, instrument and fixing method |
| CN110220062A (en) * | 2019-04-17 | 2019-09-10 | 余姚市电波机械有限公司 | Pipe fitting connects sealing structure |
| CN110206626A (en) * | 2019-06-26 | 2019-09-06 | 东风汽车股份有限公司 | Self sealss structure and flange adjustable engine exhaust pipe |
| CN110479864A (en) * | 2019-08-28 | 2019-11-22 | 成都雅恒制冷配件有限公司 | A kind of copper elbow crimping processing technology of heat exchanger of wall-hanging boiler |
| CN113523716A (en) * | 2021-06-22 | 2021-10-22 | 浙江中财管道科技股份有限公司 | Cold rolling device and cold rolling welding method for main pipe and branch pipe of stainless steel water separator |
| CN113523716B (en) * | 2021-06-22 | 2022-06-17 | 浙江中财管道科技股份有限公司 | Cold rolling device and cold rolling welding method for main pipe and branch pipe of stainless steel water separator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100124 Chen Jialin, 9 hospital, eight Li Zhuang village, Gaobeidian Township, Chaoyang District, Beijing, 7 floor 705, 706 rooms, building 1, Patentee after: Beijing United Bridge Technology Group Co., Ltd. Address before: 100025 room 709, block A, Hua Ting Century Park, Chen Jialin 9, eight Li Zhuang, Chaoyang District, Beijing. Patentee before: Meilianqioa Sci. & Tech. Development Co., Ltd., Beijing |
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| CP03 | Change of name, title or address |