CN110822201A

CN110822201A - Double-layer sealed flexible stainless steel composite pipe joint

Info

Publication number: CN110822201A
Application number: CN201911223879.5A
Authority: CN
Inventors: 王涛
Original assignee: Ningbo Mueller Pipeline Technology Co Ltd
Current assignee: Ningbo Mueller Pipeline Technology Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-02-21

Abstract

The invention discloses a double-layer sealing flexible stainless steel composite pipe joint in the technical field of pipeline equipment, which comprises a joint structure, a connecting structure and a pipe body, wherein the joint structure comprises a first joint and a connecting ring, the connecting ring is welded on the outer part of the right side of the first joint, a sealing ring is arranged in the connecting ring, and a pipe passing thread of the connecting structure is in threaded connection with the connecting ring; this compound coupling of double-deck sealed flexible stainless steel's setting, structural design is reasonable, it has a clamp ring to inlay in the inside of second connector, the inside wall of clamp ring has outstanding buckle, the recess cooperation of buckle and bellows lateral wall, with the intensity that improves body and joint structural connection, and install sealing washer and PE mount pad respectively in the inside and the outside of second connecting seat, thereby the clamp ring, thereby sealing washer and PE mount pad mutually support the leakproofness that uses can effectual improvement body and joint structural connection.

Description

Double-layer sealed flexible stainless steel composite pipe joint

Technical Field

The invention relates to the technical field of pipeline equipment, in particular to a double-layer sealed flexible stainless steel composite pipe joint.

Background

The stainless steel composite pipe is a new material compounded by two metal materials of stainless steel and carbon structural steel synchronously by lossless pressure, and has the advantages of corrosion resistance, wear resistance, excellent appearance, good bending strength and impact resistance of the carbon steel. The existing stainless steel composite pipe joint has a serious problem that the sealing structure of the joint is less when the joint is used, so that the sealing performance of the joint can be reduced, and therefore a double-layer sealing flexible stainless steel composite pipe joint is provided.

Disclosure of Invention

The invention aims to provide a double-layer sealing flexible stainless steel composite pipe joint to solve the problem that the sealing performance of the joint is reduced because the sealing structure of the joint is less when the stainless steel composite pipe joint provided in the background art is used.

In order to achieve the purpose, the invention provides the following technical scheme: a double-layer sealed flexible stainless steel composite pipe joint comprises a joint structure, a connecting structure and a pipe body, the joint structure includes a first joint head and a coupling ring welded to a right outer portion of the first joint head, a sealing ring is arranged inside the connecting ring, the through pipe thread of the connecting structure is in threaded connection with the connecting ring, the connecting structure comprises a second connector and a PE mounting seat, the second connector is embedded in the left side of the inner cavity of the PE mounting seat, a clamp ring is arranged in the second connector, a protruding buckle extends from the inner side wall of the clamp ring, the pipe body penetrates through the PE mounting seat and extends to an inner cavity of the first connector, the pipe body comprises a conveying pipe and a corrugated pipe, the conveying pipe is fixedly connected with the corrugated pipe in an integrated injection molding mode, and the clamping groove in the outer side wall of the corrugated pipe is connected with the protruding buckle in the inner side wall of the compression ring in a matched mode.

Preferably, the left side of the inner side wall of the first connecting head is provided with a thread groove.

Preferably, the outer side wall of the conveying pipe is sleeved with a plastic coating layer, and the outer side wall of the conveying pipe is in contact with the inner side wall of the PE mounting seat.

Preferably, the material of the sealing ring is PE.

Compared with the prior art, the invention has the beneficial effects that: this compound coupling of double-deck sealed flexible stainless steel's setting, structural design is reasonable, it has a clamp ring to inlay in the inside of second connector, the inside wall of clamp ring has outstanding buckle, the recess cooperation of buckle and bellows lateral wall, with the intensity that improves body and joint structural connection, and install sealing washer and PE mount pad respectively in the inside and the outside of second connecting seat, thereby the clamp ring, thereby sealing washer and PE mount pad mutually support the leakproofness that uses can effectual improvement body and joint structural connection.

Drawings

FIG. 1 is a schematic view of the internal cross-sectional structure of the present invention.

In the figure: joint structure 100, first connector 110, thread groove 111, connecting ring 120, sealing ring 121, connecting structure 200, second connector 210, clamp ring 211, PE mount 220, tube 300, delivery tube 310, bellows 320.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention provides a double-layer sealed flexible stainless steel composite pipe joint for improving the sealing performance of the connection between a pipe body and a joint structure, please refer to fig. 1, which includes a joint structure 100, a connecting structure 200 and a pipe body 300.

Referring to fig. 1 again, the joint structure 100 includes a first connector 110 and a connecting ring 120, the connecting ring 120 is welded to the right outer portion of the first connector 110, a sealing ring 121 is disposed inside the connecting ring 120, and the first connector 110, the connecting ring 120 and the sealing ring 121 are used for communicating the pipe body 300 with an external pipeline.

Referring to fig. 1 again, the connection structure 200 is in threaded connection with the connection ring 120 through a pipe thread, the connection structure 200 includes a second connector 210 and a PE mount pad 220, the second connector 210 is embedded in the left side of the inner cavity of the PE mount pad 220, a clamp ring 211 is placed inside the second connector 210, a protruding buckle extends from the inner side wall of the clamp ring 211, the second connector 210 and the PE mount pad 220 are used for improving the sealing performance of the connector, and the clamp ring 211 is used for fixing the position of the bellows 320.

Referring to fig. 1 again, the tube 300 penetrates the PE mounting base 220 and extends to the inner cavity of the first connector 110, the tube 300 includes a delivery tube 310 and a bellows 320, the delivery tube 310 and the bellows 320 are fixedly connected by integral injection molding, a slot on the outer side wall of the bellows 320 is connected with a protruding snap fit on the inner side wall of the clamp ring 211, and the tube 300 is used for delivering liquid or gas.

Referring to fig. 1 again, in order to improve the connection strength between the external pipe and the first connector 110, a thread groove 111 is formed on the left side of the inner sidewall of the first connector 110, and the external pipe is not shown to be connected to the first connector 110 through a thread.

Referring to fig. 1 again, in order to improve the connection strength between the delivery pipe 310 and the PE mount 220, the outer sidewall of the delivery pipe 310 is sleeved with a plastic-coated layer, and the outer sidewall of the delivery pipe 310 contacts the inner sidewall of the PE mount 220, the inner sidewall of the PE mount 220 is heated and melted by a heater, then the delivery pipe 310 is inserted into the PE mount 220, the outer wall of the delivery pipe 310 contacts the melted PE mount 220, and the PE mount 220 is cooled and then connected with the outer wall of the delivery pipe 310.

Referring to fig. 1 again, in order to improve the sealing performance inside the joint, the material of the sealing ring 121 is PE.

The working principle is as follows: the sealing ring 121 is inserted into the connecting ring 120, the clamp ring 211 is placed inside the second connector 210, the second connector 210 is installed outside the connecting ring 120, the PE mounting base 220 is sleeved outside the second connector 210, the PE mounting base 220 is heated by a heater (not shown in the figure) to melt the inner side wall of the PE mounting base 220, the pipe body 300 is inserted into the connecting ring 120 from right to left until the left side wall of the conveying pipe 310 contacts with the right side wall of the second connector 210, the clamp ring 211 fixes the position of the bellows 320, the inner side wall of the molten PE mounting base 220 is cooled and then fixed with the conveying pipe 310, and an external pipeline (not shown in the figure) is connected with the first connector 110 through threads to contact with the left end of the bellows 320, thereby completing the connection between the pipeline and the connector.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a double-deck flexible stainless steel composite pipe joint that seals which characterized in that: including joint design (100), connection structure (200) and body (300), joint design (100) includes first connector (110) and connecting ring (120), connecting ring (120) weld in the right side outside of first connector (110), sealing washer (121) have been placed to the inside of connecting ring (120), connection structure (200) siphunculus screw thread with connecting ring (120) threaded connection, connection structure (200) include second connector (210) and PE mount pad (220), second connector (210) inlay in the left side of PE mount pad (220) inner chamber, clamp ring (211) have been placed to the inside of second connector (210), the inside wall of clamp ring (211) extends there is outstanding buckle, body (300) run through PE mount pad (220) extend to the inner chamber of first connector (110), the pipe body (300) comprises a conveying pipe (310) and a corrugated pipe (320), the conveying pipe (310) is fixedly connected with the corrugated pipe (320) in an integrated injection molding mode, and a clamping groove in the outer side wall of the corrugated pipe (320) is connected with a clamping buckle protruding from the inner side wall of the compression ring (211) in a matched mode.

2. The double-layer sealed flexible stainless steel composite pipe joint according to claim 1, wherein: the left side of the inner side wall of the first connecting head (110) is provided with a thread groove (111).

3. The double-layer sealed flexible stainless steel composite pipe joint according to claim 1, wherein: the outer side wall of the conveying pipe (310) is sleeved with a plastic coating layer, and the outer side wall of the conveying pipe (310) is in contact with the inner side wall of the PE mounting seat (220).

4. The double-layer sealed flexible stainless steel composite pipe joint according to claim 1, wherein: the sealing ring (121) is made of PE.