CN217683868U

CN217683868U - Novel expansion and contraction structure for 3PE steel-plastic conversion

Info

Publication number: CN217683868U
Application number: CN202220125787.4U
Authority: CN
Inventors: 张伟; 池永生
Original assignee: Cangzhou Mingzhu Plastic Co ltd
Current assignee: Cangzhou Mingzhu Plastic Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-10-28
Anticipated expiration: 2032-01-18

Abstract

The utility model relates to the technical field of gas pipeline systems, in particular to a novel expansion and contraction structure for 3PE steel-plastic conversion, which improves the connection strength of the device, increases the use safety, improves the impact resistance and increases the connection precision; the seamless steel pipe heat-shrinkable sleeve is sleeved on the outer wall of the joint of the seamless steel pipe and the PE pipe, and the locking ring is installed at the joint of the seamless steel pipe and the PE pipe.

Description

Novel expansion and contraction structure for 3PE steel-plastic conversion

Technical Field

The utility model relates to a gas piping system's technical field especially relates to a novel throat structure that expands of conversion is moulded to 3PE steel.

Background

The main steel-plastic conversion structure for the gas pipeline system comprises a PE part, a steel pipe section part, a rigid inner insert or a locking ring, wherein a PE pipe is produced according to the market at present, the length of the steel pipe is customized by customers according to geographical positions, construction conditions and the like, the steel pipe part tends to an integrated steel pipe section without welding seams, and the risk of welding seam defects existing in the welding of the steel pipe is avoided.

The steel-plastic conversion is mainly an assembly design of an assembly reducing combination part, the quality of the design of the part determines the sealing property, the drawing resistance and the shearing resistance of a pipe fitting, the structural form in the current market is that the reducing part is an injection molding PE end type and a welded bellmouth steel pipe type, wherein the injection molding PE end type has the problems that the PE end length cannot be adjusted and the reducing part is easy to break and the impact resistance is weak due to the injection molding process, and the welded bellmouth steel pipe type has the problems that the assembly root is easy to shear and a welded mouth exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an improve device joint strength increases the safety in utilization, improves shock resistance, increases the novel throat structure that expands of conversion is moulded to 3PE steel of connection precision.

The utility model discloses a novel throat structure that expands of conversion is moulded to 3PE steel, including seamless steel pipe, PE pipe, locking ring and thermal shrinkage bush, PE pipe right-hand member suit is at seamless steel pipe left end, and the thermal shrinkage bush suit is on seamless steel pipe and PE union coupling department outer wall, and the locking ring is installed in seamless steel pipe and PE union coupling department.

The utility model discloses a novel throat structure that expands of conversion is moulded to 3PE steel, seamless steel pipe left end has set gradually the tensile district of pulling out, sealing area and transition zone.

The utility model discloses a novel mouth structure that contracts that expands of conversion is moulded to 3PE steel still fills the cushion and installs at the tensile district angle alveolus inside including filling cushion and O type circle, fills the cushion and pulls out, and O type circle is installed at sealing area inslot portion.

The utility model discloses a novel mouth structure that contracts that expands of conversion is moulded to 3PE steel still includes seamless steel pipe outer wall spraying and has the epoxy coating.

The utility model discloses a novel expansion and contraction mouth structure of conversion is moulded to 3PE steel still includes that the seamless steel pipe right-hand member sets up to weld end or screw thread.

Compared with the prior art, the beneficial effects of the utility model are that: the device has the advantages of improving the connection strength, increasing the use safety, improving the impact resistance and increasing the connection precision.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic axial view of the components of the present invention;

FIG. 3 is an enlarged schematic view of the components of the present invention;

in the drawings, the reference numbers: 1. seamless steel pipes; 2. a PE pipe; 3. locking ring; 4. thermal shrinkage sleeving; 5. a drawing-resistant area; 6. a sealing zone; 7. a transition zone; 8. filling a rubber pad; 9. an O-shaped ring; 10. and (4) epoxy coating.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 3, the novel 3PE steel-plastic conversion expansion and contraction structure of the present invention comprises a seamless steel pipe 1, a PE pipe 2, a locking ring 3 and a heat shrinkable sleeve 4, wherein the right end of the PE pipe 2 is sleeved on the left end of the seamless steel pipe 1, the heat shrinkable sleeve 4 is sleeved on the outer wall of the joint of the seamless steel pipe 1 and the PE pipe 2, and the locking ring 3 is installed at the joint of the seamless steel pipe 1 and the PE pipe 2; the connecting strength of the device is improved, the use safety is improved, the impact resistance is improved, and the connecting precision is increased.

The utility model discloses a novel flaring and necking structure for 3PE steel-plastic conversion, wherein the left end of a seamless steel pipe 1 is provided with a drawing-resistant area 5, a sealing area 6 and a transition area 7 in sequence; the connection strength of the seamless steel pipe 1 and the PE pipe 2 is increased through the anti-drawing zone 5, the connection tightness is increased through the sealing zone, and the connection convenience of the seamless steel pipe 1 and the PE pipe 2 is increased through the transition zone.

The utility model discloses a novel mouth expanding and contracting structure for 3PE steel-plastic conversion, which also comprises a filling rubber pad 8 and an O-shaped ring 9, wherein the filling rubber pad 8 is arranged inside a 5-angle tooth socket of a drawing-resistant area, and the O-shaped ring 9 is arranged inside a 6-angle groove of a sealing area; the connection strength and the tightness of the seamless steel pipe 1 and the PE pipe 2 are further improved by filling the rubber mat 8 and the O-shaped ring 9.

The utility model discloses a novel expansion and contraction mouth structure for 3PE steel-plastic conversion, which also comprises an epoxy coating 10 sprayed on the outer wall of a seamless steel pipe 1; the corrosion resistance of the seamless steel pipe 1 is improved.

The utility model discloses a novel expansion and contraction mouth structure for 3PE steel-plastic conversion, which also comprises a weldable end socket or a thread arranged at the right end of the seamless steel pipe 1; and the splicing is convenient.

The utility model discloses a novel throat structure that expands of conversion is moulded to 3PE steel, it is at the during operation, at first a safety valve block production punching press mechanism, later according to the thermoforming requirement of steel pipe fitting, the steel pipe is by behind the superaudio frequency heating, according to different specification demands, uses pipe contracting machine or the shaping of pipe expanding machine to the reducing port, goes out seal groove and bamboo joint position through lathe processing again, assembles together with PE tubular product and locking ring behind the spraying epoxy powder.

The utility model discloses a novel throat structure that expands of conversion is moulded to 3PE steel, its mounting means, connected mode or set up the mode and be common mechanical system, as long as can reach all can implement of its beneficial effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a novel throat structure that expands that conversion is moulded to 3PE steel, a serial communication port, including seamless steel pipe (1), PE pipe (2), locking ring (3) and thermal shrinkable sleeve (4), PE pipe (2) right-hand member suit is at seamless steel pipe (1) left end, and thermal shrinkable sleeve (4) suit is on seamless steel pipe (1) and PE pipe (2) junction outer wall, and the locking ring (3) are installed in seamless steel pipe (1) and PE pipe (2) junction.

2. The novel 3PE steel-plastic conversion flaring and necking structure as claimed in claim 1, wherein a pulling-resistant area (5), a sealing area (6) and a transition area (7) are sequentially arranged at the left end of the seamless steel pipe (1).

3. A novel 3PE steel-plastic conversion flaring structure as claimed in claim 1, further comprising a filling rubber gasket (8) and an O-ring (9), wherein the filling rubber gasket (8) is installed inside the corner tooth socket of the anti-pulling area (5), and the O-ring (9) is installed inside the groove of the sealing area (6).

4. The novel 3PE steel-plastic conversion flaring and necking structure according to claim 1, further comprising an epoxy coating (10) sprayed on the outer wall of the seamless steel pipe (1).

5. The novel expansion and contraction structure for steel-plastic conversion of 3PE steel according to claim 1, further comprising a weldable end or a thread at the right end of the seamless steel pipe (1).