CN206246866U - A kind of petroleum pipeline box cupling - Google Patents

A kind of petroleum pipeline box cupling Download PDF

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Publication number
CN206246866U
CN206246866U CN201621292565.2U CN201621292565U CN206246866U CN 206246866 U CN206246866 U CN 206246866U CN 201621292565 U CN201621292565 U CN 201621292565U CN 206246866 U CN206246866 U CN 206246866U
Authority
CN
China
Prior art keywords
box cupling
petroleum pipeline
annular flange
protective cover
ring
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
CN201621292565.2U
Other languages
Chinese (zh)
Inventor
沈金章
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.)
Wuxi Jinding Oil Pipe Fittings Co Ltd
Original Assignee
Wuxi Jinding Oil Pipe Fittings 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 Wuxi Jinding Oil Pipe Fittings Co Ltd filed Critical Wuxi Jinding Oil Pipe Fittings Co Ltd
Priority to CN201621292565.2U priority Critical patent/CN206246866U/en
Application granted granted Critical
Publication of CN206246866U publication Critical patent/CN206246866U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of petroleum pipeline box cupling, including box cupling body, the box cupling inner surface of tube body is provided with the internal thread being engaged with external screw thread petroleum pipeline, and it is separately installed with protective cover ring at box cupling body two ends, an annular flange is equipped with protective cover, one end that petroleum pipeline is connected with box cupling body is provided with three road annular grooves, annular flange and annular groove clamping, elastic seal ring is additionally provided with box cupling body, elastic seal ring is located at annular flange near the side of box cupling body, and elastic seal ring is in close contact with the petroleum pipeline.The box cupling that petroleum pipeline in the utility model is used includes protective cover ring, protective cover ring plays the effect sealed with petroleum pipeline, wherein, annular flange and annular groove clamping, when annular flange departs from an annular groove, another annular groove will be entered, can so be increased the service life, the setting of sealing ring in addition also enhances sealing effectiveness.

Description

A kind of petroleum pipeline box cupling
Technical field
The utility model is related to petroleum pipeline technical field, more particularly to a kind of petroleum pipeline box cupling.
Background technology
Pipeline is that carried of crude oil is most economical, a kind of rational means of transportation.Pipeline crude oil, the company between oil pipe The mode of connecing is typically with tubing coupling and is attached, and tubing coupling has tubulose box cupling body, and the two ends of box cupling body have Connection internal thread, during using tubing coupling connected pipes, internal thread is connected tubing coupling is screwed into externally threaded oil pipe It is interior, oil continuative transport pipeline is formed with this, realize the continuative transport of oil.Above-mentioned tubing coupling of the prior art and oil pipe Between connection sealing be usually first to wind glass fiber or the rope made of hemp in the external screw thread of oil pipe, afterwards being tied with glass fiber or the rope made of hemp Oil pipe is screwed into tubing coupling, and the problem that above-mentioned seal form is present is:One is that oil pipe and tubing coupling install relatively cumbersome, Needs get out glass fiber or the rope made of hemp in advance, and the rope made of hemp or the elastic or thickness of glass fiber winding can also influence sealing effectiveness in addition, It is whard to control;Two is practice have shown that carrying out oil pipe and tubing coupling sealing, sealing effect in the form of glass fiber or rope made of hemp winding It is really bad, easily there is crude oil Seepage during use.
Utility model content
In order to overcome the problem of existing technical deficiency, the utility model provides a kind of petroleum pipeline box cupling.
What the technical solution of the utility model was realized in:A kind of petroleum pipeline box cupling, including box cupling body, it is described Box cupling inner surface of tube body is provided with the internal thread being engaged with external screw thread petroleum pipeline, and in box cupling body two ends difference Protective cover ring is installed, an annular flange is equipped with the protective cover, the petroleum pipeline be connected with box cupling body one End is provided with three road annular grooves, the annular flange and annular groove clamping, and elastic seal ring is additionally provided with the box cupling body, The elastic seal ring is located at the annular flange near the side of box cupling body, the elastic seal ring and the petroleum pipeline It is in close contact.
Preferably, the 1/3 of the box cupling body width and the box cupling pipe welding.
Preferably, the length of the annular flange is equal with the vertical range of protective cover ring inwall to annular groove.
The utility model beneficial effect is:The box cupling that petroleum pipeline in the utility model is used includes protective cover ring, prevents Shroud ring plays the effect sealed with petroleum pipeline, wherein, annular flange and annular groove clamping, when annular flange departs from one During annular groove, another annular groove will be entered, can so increased the service life, the setting of sealing ring in addition also strengthens Sealing effectiveness.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model petroleum pipeline box cupling;
Fig. 2 is the sectional view of protective cover ring in the utility model;
In figure:1 box cupling body, 2 protective cover rings, 3 annular flanges, 4 elastic seal rings.
Specific embodiment
The utility model is described further in conjunction with the accompanying drawings and embodiments.
As shown in Figure 1, 2, a kind of petroleum pipeline box cupling, including box cupling body, the box cupling inner surface of tube body be provided with With the internal thread that external screw thread petroleum pipeline is engaged, and protective cover ring is separately installed with the box cupling body two ends, it is described An annular flange is equipped with protective cover, one end that the petroleum pipeline is connected with box cupling body is provided with three road annular grooves, The annular flange and annular groove clamping, are additionally provided with elastic seal ring on the box cupling body, the elastic seal ring is located at The annular flange is in close contact near the side of box cupling body, the elastic seal ring with the petroleum pipeline.
The 1/3 of the width of box cupling body described in the utility model and the box cupling pipe welding, it is ensured that the fastening of connection Type, in addition, the length of the annular flange is equal with the vertical range of protective cover ring inwall to annular groove, such annular flange End be connected to the bottommost of annular groove, enhance sealing effectiveness.
The box cupling that petroleum pipeline in the utility model is used includes protective cover ring, and protective cover ring plays close with petroleum pipeline The effect of envelope, wherein, annular flange and annular groove clamping, when annular flange departs from an annular groove, will enter another One annular groove, can so increase the service life, and the setting of sealing ring in addition also enhances sealing effectiveness.
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still can be with Various modifications and alterations are made without departing from spirit and scope of the present utility model.Therefore, specification is considered as illustrative And it is nonrestrictive.

Claims (3)

1. a kind of petroleum pipeline box cupling, including box cupling body, it is characterised in that the box cupling inner surface of tube body is provided with and has The internal thread that external screw thread petroleum pipeline is engaged, and it is separately installed with protective cover ring, the protection at the box cupling body two ends An annular flange is equipped with cover, one end that the petroleum pipeline is connected with box cupling body is provided with three road annular grooves, described Annular flange and annular groove clamping, are additionally provided with elastic seal ring on the box cupling body, the elastic seal ring is located at described Annular flange is in close contact near the side of box cupling body, the elastic seal ring with the petroleum pipeline.
2. petroleum pipeline box cupling according to claim 1, it is characterised in that 1/3 and institute of the box cupling body width State box cupling pipe welding.
3. petroleum pipeline box cupling according to claim 1, it is characterised in that the length and protective cover of the annular flange The vertical range of ring inwall to annular groove is equal.
CN201621292565.2U 2016-11-29 2016-11-29 A kind of petroleum pipeline box cupling Expired - Fee Related CN206246866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621292565.2U CN206246866U (en) 2016-11-29 2016-11-29 A kind of petroleum pipeline box cupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621292565.2U CN206246866U (en) 2016-11-29 2016-11-29 A kind of petroleum pipeline box cupling

Publications (1)

Publication Number Publication Date
CN206246866U true CN206246866U (en) 2017-06-13

Family

ID=59003070

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621292565.2U Expired - Fee Related CN206246866U (en) 2016-11-29 2016-11-29 A kind of petroleum pipeline box cupling

Country Status (1)

Country Link
CN (1) CN206246866U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402526A (en) * 2016-11-29 2017-02-15 无锡金顶石油管材配件制造有限公司 Coupling for petroleum pipeline

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402526A (en) * 2016-11-29 2017-02-15 无锡金顶石油管材配件制造有限公司 Coupling for petroleum pipeline

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170613

Termination date: 20171129