CN202719303U - Flat welding flange - Google Patents

Flat welding flange Download PDF

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Publication number
CN202719303U
CN202719303U CN 201220400326 CN201220400326U CN202719303U CN 202719303 U CN202719303 U CN 202719303U CN 201220400326 CN201220400326 CN 201220400326 CN 201220400326 U CN201220400326 U CN 201220400326U CN 202719303 U CN202719303 U CN 202719303U
Authority
CN
China
Prior art keywords
flange
face
connecting body
pipeline connecting
annular flange
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.)
Expired - Fee Related
Application number
CN 201220400326
Other languages
Chinese (zh)
Inventor
黄荣国
邹继全
李增卡
王慕亮
金杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang FeiTing special materials Polytron Technologies Inc
Original Assignee
ZHEJIANG FEITING TUBE INDUSTRY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG FEITING TUBE INDUSTRY Co Ltd filed Critical ZHEJIANG FEITING TUBE INDUSTRY Co Ltd
Priority to CN 201220400326 priority Critical patent/CN202719303U/en
Application granted granted Critical
Publication of CN202719303U publication Critical patent/CN202719303U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a flat welding flange which comprises a cylindrical pipeline connecting body. The pipeline connecting body is provided with a through hole for a pipeline to insert. The side wall of the pipeline connecting body extends outward to be provided with an annular flange. A locating hole is arranged on the annular flange. An end face of one side of the annular flange and an end face of the pipeline are arranged in an aligned mode. The end face of the annular flange and the end face of the pipeline connecting body which are aligned are connected to form a flat end face. The end face of the pipe connecting corresponding to the flat end face extends out of the annular flange. The flat end face extends along a circumferential direction of the through hole and forms an annular locating convex table. The external diameter of the annular locating convex table is larger than the diameter of the pipeline connecting body. The scheme is adopted and the flat welding flange can guarantee that when two pipelines are connected, location of a sealing ring placed on a connecting opening position of the two pipelines is stable and deviation cannot occur, and therefore the phenomenon of medium leakage from the connecting opening position of the two pipelines can be effectively avoided.

Description

A kind of welded flange
Technical field
The utility model relates to the flange field, particularly a kind of welded flange.
Background technique
Existing a kind of welded flange, include the cylindrical pipe connecting body, described pipeline connecting body is provided with the through hole that inserts for pipeline, be outward extended with annular flange flange on the sidewall of described pipeline connecting body, described annular flange flange is provided with positioning hole, the setting of aliging with the end face of pipeline connecting body of the end face of loop wire flange one side, annular flange flange connects into planar end surface with the end face that the pipeline connecting body aligns, the end face that the pipeline connecting body is relative with planar end surface extends to outside the annular flange flange, general flange uses in pairs, when two pipelines to be connected are connected, only two pipelines need to be inserted respectively in the through hole of pipeline connecting body, again the planar end surface of two flanges is fitted, pass the connection that can realize two pipelines in the positioning hole of two annular flange flange by positioning screwn at last, in order to prevent that two pipe joint places from producing leakage phenomenon, usually between two flanges, seal ring is set, although seal ring is axially positioned by two flanges, but, seal ring is not radially located, the position of seal ring produces skew easily, thereby cause two pipe joint places to produce the medium phenomenon that leaks, and then cause unnecessary trouble.
Summary of the invention
The purpose of this utility model: in order to overcome the defective of prior art, the utility model provides a kind of welded flange, and in the time of guaranteeing that two pipelines connect, the seal ring location that is positioned at two pipe joint places is firm, can not produce skew, thereby can prevent effectively that two pipe joint places from producing the medium phenomenon that leaks.
The technical solution of the utility model: a kind of welded flange, include the cylindrical pipe connecting body, described pipeline connecting body is provided with the through hole that inserts for pipeline, be outward extended with annular flange flange on the sidewall of described pipeline connecting body, described annular flange flange is provided with positioning hole, the setting of aliging with the end face of pipeline connecting body of the end face of loop wire flange one side, annular flange flange connects into planar end surface with the end face that the pipeline connecting body aligns, the end face that the pipeline connecting body is relative with planar end surface extends to outside the annular flange flange, it is characterized in that: circumferentially be outward extended with the circular orientation boss along through hole on the described planar end surface, the external diameter of described circular orientation boss is greater than the diameter of pipeline connecting body.
Adopt technique scheme, when two pipelines to be connected are connected, only the seal ring between two flanges need to be set on the described circular orientation boss, seal ring is axially positioned by two flanges like this, is radially located by the circular orientation boss, therefore, the welded flange of this structure, in the time of guaranteeing that two pipelines connect, the seal ring location that is positioned at two pipe joint places is firm, can not produce skew, thereby can prevent effectively that two pipe joint places from producing the medium phenomenon that leaks.
Further setting of the present utility model: is connected through arc-shaped transitional surface between the end face that extends to the outer pipeline connecting body of annular flange flange and the annular flange flange, described arc-shaped transitional surface is crooked setting to the inside.
Adopt above-mentioned further setting, by the arc-shaped transitional surface that arranges, so that it is little to extend to annular flange flange outer pipeline connecting body and the stress between the annular flange flange, thereby can effectively prevent the annular flange flange fracture.
Again further setting of the present utility model: the week of the both sides end face of described annular flange flange upwards is equipped with chamfering, and described chamfering is 45 degree.
Adopt above-mentionedly further to arrange, 45 degree chamferings of setting can prevent that the circumferential corner angle of the both sides end face of annular flange flange from stabbing the staff again.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment.
Specific embodiment
As shown in Figure 1, a kind of welded flange, include cylindrical pipe connecting body 1, described pipeline connecting body 1 is provided with the through hole 11 that inserts for pipeline, be outward extended with annular flange flange 2 on the sidewall of described pipeline connecting body 1, pipeline connecting body 1, annular flange flange 2 is stainless steel and makes, described annular flange flange 2 is provided with positioning hole 21, the setting of aliging with the end face of pipeline connecting body 1 of the end face 22 of loop wire flange 2 one sides, the end face that annular flange flange 2 is alignd with pipeline connecting body 1 connects into planar end surface 3, pipeline connecting body 1 and planar end surface 3 relative end faces 12 extend to outside the annular flange flange 2, circumferentially be outward extended with circular orientation boss 4 along through hole 11 on the described planar end surface 3, the external diameter of described circular orientation boss 4 is greater than the diameter of pipeline connecting body 1.
As shown in Figure 1, in the utility model specific embodiment, is connected the to the inside bending setting of described arc-shaped transitional surface 5 through arc-shaped transitional surface 5 between the end face 12 that extends to the outer pipeline connecting body 1 of annular flange flange 2 and the annular flange flange 2.
As shown in Figure 1, in the utility model specific embodiment, the both sides end face 22 of described annular flange flange 2,23 week upwards be equipped with chamfering 6, described chamfering 6 is 45 degree.

Claims (3)

1. welded flange, include the cylindrical pipe connecting body, described pipeline connecting body is provided with the through hole that inserts for pipeline, be outward extended with annular flange flange on the sidewall of described pipeline connecting body, described annular flange flange is provided with positioning hole, the setting of aliging with the end face of pipeline connecting body of the end face of loop wire flange one side, annular flange flange connects into planar end surface with the end face that the pipeline connecting body aligns, the end face that the pipeline connecting body is relative with planar end surface extends to outside the annular flange flange, it is characterized in that: circumferentially be outward extended with the circular orientation boss along through hole on the described planar end surface, the external diameter of described circular orientation boss is greater than the diameter of pipeline connecting body.
2. welded flange according to claim 1 is characterized in that: is connected through arc-shaped transitional surface between the end face that extends to the outer pipeline connecting body of annular flange flange and the annular flange flange, described arc-shaped transitional surface is crooked setting to the inside.
3. welded flange according to claim 1 and 2, it is characterized in that: the week of the both sides end face of described annular flange flange upwards is equipped with chamfering, and described chamfering is 45 degree.
CN 201220400326 2012-08-13 2012-08-13 Flat welding flange Expired - Fee Related CN202719303U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220400326 CN202719303U (en) 2012-08-13 2012-08-13 Flat welding flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220400326 CN202719303U (en) 2012-08-13 2012-08-13 Flat welding flange

Publications (1)

Publication Number Publication Date
CN202719303U true CN202719303U (en) 2013-02-06

Family

ID=47621127

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220400326 Expired - Fee Related CN202719303U (en) 2012-08-13 2012-08-13 Flat welding flange

Country Status (1)

Country Link
CN (1) CN202719303U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106078314A (en) * 2016-08-24 2016-11-09 浙江省平湖市工具厂 A kind of fixing base plate used by the automatic charging device of milling machine
CN106979403A (en) * 2016-03-14 2017-07-25 江阴市诺普得机械有限公司 Downhand welding formula flange

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106979403A (en) * 2016-03-14 2017-07-25 江阴市诺普得机械有限公司 Downhand welding formula flange
CN106078314A (en) * 2016-08-24 2016-11-09 浙江省平湖市工具厂 A kind of fixing base plate used by the automatic charging device of milling machine

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20170217

Address after: Ruian City, Wenzhou City, Zhejiang province 325000 Feiyun Economic Development Zone District (Sha Yuan Cun)

Patentee after: Zhejiang FeiTing special materials Polytron Technologies Inc

Address before: 325200 Binjiang Road, Ruian Economic Development Zone, Zhejiang, China, No. 1366, No.

Patentee before: Zhejiang Feiting Tube Industry Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130206

Termination date: 20190813

CF01 Termination of patent right due to non-payment of annual fee