CN205716154U

CN205716154U - One can coil plastic composite pipe pipe jointing

Info

Publication number: CN205716154U
Application number: CN201620661908.1U
Authority: CN
Inventors: 张鹏; 赵成春
Original assignee: HEBEI YUTONG SPECIAL RUBBER HOSE CO Ltd
Current assignee: HEBEI YUTONG SPECIAL RUBBER HOSE CO Ltd
Priority date: 2016-06-29
Filing date: 2016-06-29
Publication date: 2016-11-23
Anticipated expiration: 2026-06-29

Abstract

This utility model belongs to pipe interconnection technique field, discloses one and can coil plastic composite pipe pipe jointing.Its main technical schemes: include by inside and outside plastic pipe layer and be sandwiched in that enhancement layer between the two constitutes can coiling plastic composite pipe, stage casing is provided with tool card face, both sides lateral surface is provided with the core pipe of step, described step is fixed with external lock control sheath so that form grafting between described core pipe and described external lock control sheath and can coil the cylinder ring of plastic composite pipe.This pipe jointing has the simple feature with connection good sealing effect of attachment structure；It is capable of between tube and tube, manages and be connected with multiple between flange.

Description

Connecting joint of plastic composite pipe capable of being coiled

Technical Field

The utility model belongs to the technical field of the pipeline connection, specific saying relates to a can coil compound union coupling of plastics that uses to connect between the liquid pipeline and connect.

Background

At present, coiled plastic composite pipes used for conveying liquids such as petroleum, water and the like are connected by welding or screwing whether the pipes are connected or the pipes are connected with flanges. Because the structure of the coiled plastic composite pipe consists of the inner plastic pipe layer, the outer plastic pipe layer and the reinforcing layer clamped between the inner plastic pipe layer and the outer plastic pipe layer, the welding temperature is very easy to cause structural shape change between the inner plastic layer and the outer plastic layer when welding connection is adopted, and phenomena such as welding missing, welding dislocation and the like are formed, or welding sand holes are formed, so that the failure of pipe connection is caused; when the screw thread connection is adopted, the used sealing washer is wrinkled, so that the connection leakage between pipelines is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compound union coupling of tub of plastics that can coil that simple structure, connection are sealed effectual.

In order to achieve the above object, the utility model adopts the following technical scheme:

the plastic composite pipe connecting joint capable of being coiled is characterized in that: the winding machine comprises a core pipe, wherein a tool clamping surface is arranged on the middle section of the core pipe, steps are arranged on the outer side surfaces of the two sides of the core pipe, and an outer locking pipe control sheath is fixed on the steps, so that a cylindrical ring which is inserted and coiled with a plastic composite pipe is formed between the core pipe and the outer locking pipe control sheath.

In the structure constituting the above-mentioned one coilable plastic composite pipe coupling joint,

-the end of the outer locking tube sheath is retracted to the end of the core tube;

a sealing ring groove is formed in the outer wall of the core pipe in the barrel ring;

a plurality of pawl mechanisms are arranged on the inner wall of the outer lock tube control sheath in the cylinder ring;

the middle section of the core tube is provided with a fixed ring groove in which the outer lock tube control sheath is clamped.

The plastic composite pipe connecting joint capable of being coiled is characterized in that: comprises a core tube with a tool clamping surface arranged at the middle section; the outer side surface of one side of the core pipe is provided with a step, and an outer lock pipe control sheath is fixed on the step, so that a cylinder ring which is inserted and can be wound with a plastic composite pipe is formed between the core pipe and the outer lock pipe control sheath; the other side of the core tube is provided with a connecting bobbin; wherein,

the end part of the outer lock tube protecting sleeve is contracted to the end part of the core tube;

a sealing ring groove is arranged on the inner wall of the outer lock tube protecting sleeve in the barrel ring;

and a fixing ring groove in which the outer lock pipe control sheath is clamped is arranged on the middle section of the core pipe.

In the structure of the coilable plastic composite pipe connecting joint, a convex ring mechanism for sleeving a flange is arranged at the end part of the connecting pipe of the core pipe.

The utility model provides a can coil compound union coupling of plastics and connect compares with prior art, has following advantage: the hose joint is composed of a metal connecting core pipe with one end capable of being inserted into a plastic pipe layer in the coiled plastic composite pipe and a steel sheath which is fixed on the metal connecting core pipe and has an integral structure with the metal connecting core pipe, so that the hose joint has the characteristics of simple connecting structure and good connecting and sealing effects; second, since the connection joint includes the metallic connection core pipe that can be connected to a member such as a flange, various connections between pipes and flanges can be realized.

Drawings

FIG. 1 is a schematic view of a coilable plastic composite pipe coupling;

fig. 2 is a schematic view of a second coilable plastic composite pipe coupling.

Detailed Description

The structure of the pipe joint according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the coilable plastic composite pipe connection joint according to the present invention. The structure of the pipe connection joint comprises a core pipe 3, wherein a tool clamping surface 1 is arranged at the middle section of the core pipe, steps 21 and 22 are arranged on the outer side surfaces of the left side and the right side of the core pipe, and outer locking pipe control sheaths 51 and 52 are respectively connected to the steps on the two sides through screw ports 4 (or welded), so that cylinder rings 71 and 72 which are inserted and can coil plastic composite pipes 61 and 62 are formed between the core pipe and the outer locking pipe control sheaths.

When in use, the plastic composite pipes 61 and 62 which can be coiled are directly inserted into the cylinder rings 71 and 72 at the two ends, and then the pipe contracting mechanism is used for locking the outer locking pipe control sheaths 51 and 52.

to prevent the shrink tube mechanism from locking the outer lock tube control sheaths 51, 52, the coilable plastic composite tubes 61, 62 are flattened, i.e. the end portions 53, 54 of the outer lock tube control sheaths are shrunk to the end portions 31, 32 of the core tube;

in order to further improve the sealing effect of the pipe connecting joint, a sealing ring groove 8 for fixing a sealing ring 9 is arranged on the inner wall of the outer locking pipe control protective sleeve in the barrel ring;

the inner wall of the outer lock tube protecting sleeve in the cylinder ring (or the outer wall of the core tube) is provided with a plurality of pawl mechanisms 10, so that the connecting effect of the connecting joint can be further improved;

the middle section of the core tube is provided with a fixing ring groove 11 into which the outer lock tube control sheath is clamped, namely the outer lock tube control sheath is clamped into the fixing ring groove, so that the fixing strength of the core tube and the outer lock tube control sheath can be improved.

Fig. 2 is a schematic structural view of another coilable plastic composite pipe joint according to the present invention. Comprises a core tube 3 with a tool clamping surface 1 arranged at the middle section; the outer side surface of the left side of the core tube is provided with a step 2, and an outer lock tube control sheath 5 is fixed on the step, so that a tube ring 7 which is inserted and can be wound with a plastic composite tube 6 is formed between the core tube and the outer lock tube control sheath; the right side of the core pipe is provided with a connecting bobbin 12 which is of an integrated structure, and the connecting bobbin can be welded with a steel pipe to form a pipe connecting joint pipe which is connected with a plastic composite pipe at one side and can be coiled; in the structure of the connection joint, the end 53 of the outer lock tube sheath 5 is contracted to the end 31 of the core tube; a sealing ring groove 8 for fixing a sealing ring 9 is arranged on the outer wall of the core pipe in the cylinder ring; a plurality of pawl mechanisms 10 are arranged on the inner wall (or/H and the outer wall of the core tube) of the outer lock tube control sheath in the barrel ring.

When the pipe joint is used for connecting a coilable plastic composite pipe and a flange, a convex ring mechanism 14 for sleeving a flange 13 is provided at the end of a connecting bobbin of a core pipe.

Claims

1. The plastic composite pipe connecting joint capable of being coiled is characterized in that: the winding machine comprises a core pipe, wherein a tool clamping surface is arranged on the middle section of the core pipe, steps are arranged on the outer side surfaces of the two sides of the core pipe, and an outer locking pipe control sheath is fixed on the steps, so that a cylindrical ring which is inserted and coiled with a plastic composite pipe is formed between the core pipe and the outer locking pipe control sheath.

2. A coilable plastic composite pipe connection joint as claimed in claim 1, wherein: the end part of the outer lock tube protecting sleeve is contracted to the end part of the core tube.

3. A coilable plastic composite pipe connection joint as claimed in claim 1, wherein: and a sealing ring groove is arranged on the outer wall of the core pipe in the barrel ring.

4. A coilable plastic composite pipe connection joint as claimed in claim 1, wherein: and a plurality of pawl mechanisms are arranged on the inner wall of the outer lock tube control sheath in the cylinder ring.

5. A coilable plastic composite pipe connection joint as claimed in claim 1, wherein: and a fixing ring groove in which the outer lock pipe control sheath is clamped is arranged on the middle section of the core pipe.

6. The plastic composite pipe connecting joint capable of being coiled is characterized in that: comprises a core tube with a tool clamping surface arranged at the middle section; the outer side surface of one side of the core pipe is provided with a step, and an outer lock pipe control sheath is fixed on the step, so that a cylinder ring which is inserted and can be wound with a plastic composite pipe is formed between the core pipe and the outer lock pipe control sheath; the other side of the core tube is provided with a connecting bobbin; wherein,

7. A coilable plastic composite pipe connection joint as claimed in claim 6, wherein: and a convex ring mechanism for sleeving a flange is arranged at the end part of the connecting bobbin of the core tube.