CN203036119U - Welding-free insulating joint - Google Patents

Welding-free insulating joint Download PDF

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Publication number
CN203036119U
CN203036119U CN 201320022227 CN201320022227U CN203036119U CN 203036119 U CN203036119 U CN 203036119U CN 201320022227 CN201320022227 CN 201320022227 CN 201320022227 U CN201320022227 U CN 201320022227U CN 203036119 U CN203036119 U CN 203036119U
Authority
CN
China
Prior art keywords
welding
insulating joint
free insulating
joint
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.)
Active
Application number
CN 201320022227
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Chinese (zh)
Inventor
董一凡
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.)
SHENYANG YONGYE INDUSTRY Co Ltd
Original Assignee
SHENYANG YONGYE 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 SHENYANG YONGYE INDUSTRY Co Ltd filed Critical SHENYANG YONGYE INDUSTRY Co Ltd
Priority to CN 201320022227 priority Critical patent/CN203036119U/en
Application granted granted Critical
Publication of CN203036119U publication Critical patent/CN203036119U/en
Anticipated expiration legal-status Critical
Active legal-status Critical Current

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Abstract

The utility model discloses a welding-free insulating joint, and relates to the welding-free insulating joint which is suitable for a small-caliber pipeline. The structure of the welding-free insulating joint comprises a left flange with taper threads and a right flange with taper threads, and the taper threads are coated with insulating coatings. When the welding-free insulating joint is assembled, the left flange and the right flange are screwed tightly and forcibly. The insulating coatings produce double effects of sealing and insulation, the product structure is simplified, a welding step is not needed, and the problems that a sealing ring is damaged and therefore the seal ring loses effects or service life is reduced due to welding are solved. The welding-free insulating joint is simple and easy to assembly, and is especially suitable for the pipe line with the caliber less than DN 50 and the using environmental pressure range less than PN 1.6 MPa.

Description

Exempt from the welding insulation joint
Technical field
The utility model relates to a kind of insulating joint, and what especially be applicable to small pipe-line exempts from the welding insulation joint.
Background technique
Insulating joint is requisite important pressure elements in the steel pipe cathodic protection system, and it is widely used in the cathodic protection system of steel pipe.Its effect is mainly: metallic conduit is realized electrical insulation before and after making it, is equivalent to the purpose that pipeline satisfies fed sheet of a media simultaneously.Conventional insulating joint structure is as shown in Figure 1: by left flange 1, right flange 2, collude circle 3, O RunddichtringO 4, insulating sealer 5, stuffing box packing 6 and forms, must weld together and could use colluding circle 3 and left flange 1 during assembling.During welding, the O RunddichtringO 4 that too high temperature is easy to cause rubber material to be made damages, thereby loses seal action, influences working life.
Summary of the invention
In order to solve the technical problem of above-mentioned existence, the utility model provides a kind of simple in structure, ease of assembly, long service life exempt from the welding insulation joint.
The purpose of this utility model is achieved through the following technical solutions: exempt from the welding insulation joint, comprise left and right flanges, it is characterized in that: described left and right flanges is provided with tapered thread, and described tapered thread is provided with insulation coating.
The beneficial effects of the utility model: the utility model adopts said structure, directly left and right sides flange is connected by tapered thread, at tapered thread insulation coating is set, and plays the double effects of sealing and insulation, simplifies product structure; This product need not to weld link, has solved in working process because welding causes seal ring to damage, and has lost efficacy or reduce the problem in working life.And simple and convenient assembly is easily gone, and is particularly useful for the following pipeline of bore DN50, practical external pressure scope: below the PN1.6MPa.
Description of drawings
Fig. 1 is the structural representation of existing welded joint.
Fig. 2 is structural representation of the present utility model.
Embodiment
Exempt from the welding insulation joint, comprise the left flange 1, the right flange 2 that have tapered thread, be provided with insulation coating 7 at tapered thread.Described insulation coating is made by polytetrafluoro, directly left and right sides flange is firmly screwed during assembling to get final product.

Claims (1)

1. exempt from the welding insulation joint, comprise left and right flanges, it is characterized in that: described left and right flanges is provided with tapered thread, and described tapered thread is provided with insulation coating.
CN 201320022227 2013-01-16 2013-01-16 Welding-free insulating joint Active CN203036119U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320022227 CN203036119U (en) 2013-01-16 2013-01-16 Welding-free insulating joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320022227 CN203036119U (en) 2013-01-16 2013-01-16 Welding-free insulating joint

Publications (1)

Publication Number Publication Date
CN203036119U true CN203036119U (en) 2013-07-03

Family

ID=48688248

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320022227 Active CN203036119U (en) 2013-01-16 2013-01-16 Welding-free insulating joint

Country Status (1)

Country Link
CN (1) CN203036119U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179846A (en) * 2015-10-14 2015-12-23 沈阳永业实业有限公司 Rigid insulating joint manufacturing method
CN106090486A (en) * 2016-08-29 2016-11-09 赛洛克流体设备成都有限公司 The circular pipe insulating joint that a kind of dismountable is mechanically connected
CN111102408A (en) * 2019-12-23 2020-05-05 北京航空航天大学 Cathode pipeline insulating sealing joint of electric propulsion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179846A (en) * 2015-10-14 2015-12-23 沈阳永业实业有限公司 Rigid insulating joint manufacturing method
CN105179846B (en) * 2015-10-14 2019-10-18 沈阳永业实业有限公司 Rigid insulation connector manufacturing method
CN106090486A (en) * 2016-08-29 2016-11-09 赛洛克流体设备成都有限公司 The circular pipe insulating joint that a kind of dismountable is mechanically connected
CN111102408A (en) * 2019-12-23 2020-05-05 北京航空航天大学 Cathode pipeline insulating sealing joint of electric propulsion engine

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