CN212080485U

CN212080485U - Steel-plastic composite pipe with axial reinforcing structure at pipe end

Info

Publication number: CN212080485U
Application number: CN202020702232.2U
Authority: CN
Inventors: 董晓峰
Original assignee: Jiangsu Qinfeng Pipe Industry Co ltd
Current assignee: Jiangsu Qinfeng Pipe Industry Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-04
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a steel-plastic composite pipe with axial reinforcement structure at the pipe end, which belongs to the technical field of steel-plastic composite pipes, and comprises a plastic pipe inner wall, a plastic pipe outer wall, a steel-plastic reinforcement pipe, a reinforcement convex ring, a reinforcement convex block, a screw hole, an annular plastic boss, a connecting ring, a screw hole and an internal thread sleeve, wherein the right ends of the plastic pipe inner wall and the plastic pipe outer wall are respectively connected with the annular plastic boss, the steel-plastic reinforcement comprises the steel-plastic reinforcement pipes arranged at the inner sides of the plastic pipe inner wall and the plastic pipe outer wall, the arrangement of the connecting ring and a tension bolt can further enhance the axial force resistance of the pipe, the thread sleeves at the reinforcement convex ring and the connecting ring outer wall are provided with the internal thread sleeve, the main function of the internal thread sleeve is to protect the connection part, the axial force, mainly to increase the resistance to rotation of the coupling ring and thus the resistance to axial forces through the tube.

Description

Steel-plastic composite pipe with axial reinforcing structure at pipe end

Technical Field

The utility model relates to a compound pipe technical field is moulded to steel, specifically is a compound pipe is moulded to steel that pipe end has axial reinforcing structure.

Background

A steel skeleton plastic composite pipe is a novel composite pipe product with excellent comprehensive performance, two steel-plastic materials are compounded in a structural composite mode, the steel skeleton plastic composite pipe/pipe fitting is mature in production and processing technology and can be applied to various fields, flange connection is mostly adopted during pipeline connection, however, the axial force resistance of the pipe fitting and the flange connection position is poor, the pipe fitting is easy to damage after long-time use, and therefore the steel-plastic composite pipe with the axial reinforcing structure at the pipe end is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipe end has compound pipe is moulded to steel of axial reinforcing structure to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a steel-plastic composite pipe with an axial reinforcing structure at the pipe end comprises a plastic pipe inner wall, a plastic pipe outer wall, a steel-plastic reinforcing part, steel-plastic reinforcing pipes, reinforcing convex rings, reinforcing convex blocks, screw holes, annular plastic bosses, connecting rings, screw holes and an internal thread sleeve, wherein the annular plastic bosses are connected to the right ends of the plastic pipe inner wall and the plastic pipe outer wall towards the outer wall, the steel-plastic reinforcing part is arranged on the inner sides of the plastic pipe inner wall and the plastic pipe outer wall, the steel-plastic reinforcing part comprises the steel-plastic reinforcing pipes arranged on the inner sides of the plastic pipe inner wall and the plastic pipe outer wall, the reinforcing convex rings are welded at the right ends of the steel-plastic reinforcing pipes and are positioned on the inner sides of two groups of annular plastic bosses, four groups of screw holes are arranged in an annular array on the outer side of the joint of the reinforcing convex rings, the fixed cover in left side of plastics pipe outer wall and cyclic annular plastics boss junction is equipped with the go-between, go-between left side outer wall annular array is equipped with the screw hole that link up about four groups, screw hole and screw internal thread cover are equipped with tie-bolt.

Furthermore, the outer diameter of the reinforcing convex ring is larger than that of the annular plastic boss, external threads are arranged on the outer walls of the reinforcing convex ring and the connecting ring, and an internal thread sleeve is sleeved on the outer walls of the reinforcing convex ring and the connecting ring.

Furthermore, four groups of reinforcing lugs are arranged on the circumferential inner wall and the circumferential outer wall of the steel-plastic reinforced pipe in an annular array mode, the reinforcing lugs are arranged at equal intervals left and right, and the distance between every two adjacent groups of reinforcing lugs is two to three centimeters.

Further, circular arc-shaped flanges are symmetrically arranged at the connecting positions of the outer walls of the left side and the right side of the connecting ring and the outer wall of the plastic pipe.

Furthermore, a circular truncated cone-shaped reinforcing layer is welded on the joint of the outer circumferential wall of the outer wall of the plastic pipe, the connecting ring and the annular plastic boss in a surfacing mode.

Furthermore, the connecting ring is uniformly provided with bulges towards the inner wall, and the outer wall of the plastic pipe is uniformly provided with slots matched with the bulges.

Compared with the prior art, the beneficial effects of the utility model are that: go-between left side outer wall annular array is equipped with the screw hole that link up about four groups, screw hole and screw internal thread cover are equipped with tie bolt, the go-between can strengthen the anti axial force's of pipe fitting performance with tie bolt's setting by one step, reinforcing bulge loop and go-between outer wall thread cover are equipped with the internal thread sleeve pipe, the main effect that sets up the internal thread sleeve pipe is protected the junction, when improving the anti axial force performance of pipe fitting, avoid the junction to receive the impact, the security performance that the improvement pipe fitting used, go-between hoop inner wall evenly is equipped with the arch, it is mainly the resistance that the increase go-between rotation received, thereby the performance through the anti axial.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is the structure schematic diagram of the steel-plastic reinforcement of the utility model.

In the figure: 1. the inner wall of the plastic pipe; 2. an outer wall of the plastic tube; 3. a steel-plastic reinforcement; 31. a steel-plastic reinforced pipe; 32. a reinforcing convex ring; 33. reinforcing the bumps; 34. a screw hole; 4. an annular plastic boss; 5. a connecting ring; 6. a screw hole; 7. an internally threaded sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a technical scheme: a steel-plastic composite pipe with an axial reinforcing structure at the pipe end is disclosed, please refer to fig. 1-2, which comprises a plastic pipe inner wall 1, a plastic pipe outer wall 2, a steel-plastic reinforcing member 3, a steel-plastic reinforcing pipe 31, a reinforcing convex ring 32, a reinforcing convex block 33, screw holes 34, an annular plastic boss 4, a connecting ring 5, screw holes 6 and an internal thread sleeve 7, wherein the annular plastic boss 4 is connected with the right end of the annular outer wall of the plastic pipe inner wall 1 and the plastic pipe outer wall 2, the steel-plastic reinforcing member 3 is arranged at the inner side of the plastic pipe inner wall 1 and the plastic pipe outer wall 2, the steel-plastic reinforcing member 3 is a framework, the performance of the pipe fitting for reinforcing the axial force resistance is enhanced, the steel-plastic reinforcing member 3 comprises the steel-plastic reinforcing pipe 31 arranged at the inner side of the plastic pipe inner wall 1 and the plastic pipe outer wall 2, the reinforcing convex ring 32 is welded at the right end of the steel-plastic reinforcing pipe, the reinforcing convex ring 32 is connected with a flange of a used pipe fitting, the outer wall of the annular plastic boss 4 is provided with a through hole matched with the screw hole 34, the outer wall 2 of the plastic pipe, the inner wall 1 of the plastic pipe and the annular plastic boss 4 are matched with the steel-plastic reinforcing pipe 31 through a model for casting forming, the inner wall 1 of the plastic pipe and the outer wall 2 of the plastic pipe are left on the outer wall of the steel-plastic reinforcing pipe 31 by a lower die after forming, the left side of the joint of the outer wall 2 of the plastic pipe and the annular plastic boss 4 is fixedly sleeved with a connecting ring 5, four groups of screw holes 6 which are communicated left and right are annularly arrayed on the outer wall on the left side of the connecting ring 5, tensioning bolts are sleeved in;

referring to fig. 1-2, the outer diameter of the reinforcing convex ring 32 is larger than the outer diameter of the annular plastic boss 4, the reinforcing convex ring 32 and the connecting ring 5 are both provided with external threads on the outer walls, the reinforcing convex ring 32 and the connecting ring 5 are provided with the internal thread sleeve 7 in a threaded sleeve manner, and the internal thread sleeve 7 is arranged to protect the joint, so that the axial force resistance of the pipe fitting is improved, meanwhile, the impact on the joint is avoided, and the safety performance of the pipe fitting in use is improved;

referring to fig. 2, four sets of reinforcing protrusions 33 are arranged on the circumferential inner wall and the circumferential outer wall of the steel-plastic reinforced pipe 31 in an annular array, the reinforcing protrusions 33 are arranged at equal intervals from left to right, the distance between two adjacent sets of reinforcing protrusions 33 on the left and right is two to three centimeters, and the reinforcing protrusions 33 increase the friction coefficient between the steel-plastic reinforced pipe 31 and the outer wall 2 and the inner wall 1 of the plastic pipe, so that the axial force resistance of the pipe fitting is enhanced;

referring to fig. 1, circular arc-shaped flanges are symmetrically arranged at the joints between the outer walls of the left side and the right side of the connecting ring 5 and the outer wall 2 of the plastic pipe, so that the contact area between the connecting ring 5 and the outer wall 2 of the plastic pipe is increased, and the connecting ring 5 can be conveniently welded on the outer wall 2 of the plastic pipe through plastic due to the existence of the flanges;

referring to fig. 1, a truncated cone-shaped reinforcing layer is welded on the joint of the annular outer wall 2 of the plastic pipe and the connecting ring 5 and the annular plastic boss 4, so that the connection strength between the protruding part (the annular plastic boss 4) of the pipe fitting and the pipe fitting is improved;

referring to fig. 1, the connecting ring 5 is uniformly provided with protrusions on the inner circumferential wall, the outer wall of the plastic tube outer wall 2 is uniformly provided with slots matched with the protrusions, the bottom of the connecting ring 5 is matched and molded with the outer wall 2 of the plastic tube through a mold, and then the outer part of the connecting ring 5 is welded and fixed through plastic welding, so that the resistance of the connecting ring 5 to rotation is mainly increased, and the performance of resisting axial force through a pipe fitting is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tubular end has compound pipe of steel-plastic of axial reinforcing structure, includes that plastic tubing inner wall (1), plastic tubing outer wall (2), steel-plastic reinforcement (3), steel-plastic reinforcement pipe (31), reinforcing bulge loop (32), reinforcing lug (33), screw (34), cyclic annular plastics boss (4), go-between (5), screw hole (6), internal thread sleeve pipe (7), its characterized in that: the right-hand member of plastic pipe inner wall (1) and plastic tubing outer wall (2) hoop outer wall all is connected with cyclic annular plastics boss (4), it is inboard at plastic pipe inner wall (1) and plastic tubing outer wall (2) that steel-plastic reinforcement (3) set up, steel-plastic reinforcement (3) is including setting up steel-plastic reinforcement pipe (31) inboard at plastic pipe inner wall (1) and plastic tubing outer wall (2), steel-plastic reinforcement pipe (31) right-hand member welding has reinforcing bulge loop (32), reinforcing bulge loop (32) are located two sets of cyclic annular plastics boss (4) inboards, reinforcing bulge loop (32) left side outer wall is equipped with four group screw (34) with the outside annular array of steel-plastic reinforcement pipe (31) junction, cyclic annular plastics boss (4) outer wall is equipped with the through-hole with screw (34) matched with, the fixed cover in left side of plastic pipe outer wall (2) and cyclic annular plastics boss (4) junction is equipped with go-between, go up go-between (5) left side outer wall annular array and be equipped with screw hole (6) that link up about four groups, screw hole (6) and screw (34) internal thread cover are equipped with tie-bolt.

2. The steel-plastic composite pipe with the pipe end provided with the axial reinforcing structure as claimed in claim 1, wherein: the outer diameter of the reinforcing convex ring (32) is larger than that of the annular plastic boss (4), external threads are arranged on the outer walls of the reinforcing convex ring (32) and the connecting ring (5) in the circumferential direction, and an internal thread sleeve (7) is arranged on the outer walls of the reinforcing convex ring (32) and the connecting ring (5) in a thread sleeved mode.

3. The steel-plastic composite pipe with the pipe end provided with the axial reinforcing structure as claimed in claim 1, wherein: the steel-plastic reinforced pipe (31) is characterized in that four groups of reinforced lugs (33) are arranged on the circumferential inner wall and the circumferential outer wall of the steel-plastic reinforced pipe in an annular array mode, the reinforced lugs (33) are arranged at the left side and the right side at equal intervals, and the reinforced lugs (33) are adjacent to each other in the left side and the right side at intervals of two to three centimeters.

4. The steel-plastic composite pipe with the pipe end provided with the axial reinforcing structure as claimed in claim 1, wherein: circular arc-shaped flanges are symmetrically arranged at the connecting positions of the outer walls of the left side and the right side of the connecting ring (5) and the outer wall (2) of the plastic pipe.

5. The steel-plastic composite pipe with the pipe end provided with the axial reinforcing structure as claimed in claim 1, wherein: and a circular truncated cone-shaped reinforcing layer is welded on the joint of the outer wall (2) of the plastic pipe, the outer wall, the connecting ring (5) and the annular plastic boss (4) in an overlaying manner.

6. The steel-plastic composite pipe with the pipe end provided with the axial reinforcing structure as claimed in claim 1, wherein: the annular inner wall of the connecting ring (5) is uniformly provided with bulges, and the outer wall of the outer wall (2) of the plastic pipe is uniformly provided with slots matched with the bulges.