CN113389952A

CN113389952A - Reinforced heat-resistant flame-retardant PE pipe with steel ring layer inside

Info

Publication number: CN113389952A
Application number: CN202110545235.9A
Authority: CN
Inventors: 陈兆刚; 叶鲲; 吴昊; 吴彬; 王晓; 帅娟
Original assignee: Jiangsu Jinhuai Plastic Industry Co ltd
Current assignee: Jiangsu Jinhuai Plastic Industry Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-09-14

Abstract

The invention relates to the technical field of PE pipes, in particular to a reinforced heat-resistant flame-retardant PE pipe with a steel ring layer inside, which comprises an outer pipe and an inner pipe, wherein a plurality of splicing holes are formed in the circumference of the outer pipe, the lower ends of the splicing holes are provided with limiting grooves, elastic antifriction devices are spliced in the splicing holes, a part of each elastic antifriction device extends out of the outer pipe, a fixing device is spliced in the outer pipe, a reinforcing device is spliced in the outer pipe, the reinforcing device is uniformly sleeved on the inner pipe, positioning holes are symmetrically formed in the inner pipe, a connecting and fixing device is spliced in the positioning holes, the PE pipe is arranged into the outer pipe and the inner pipe, a reinforcing steel ring is sleeved between the inner pipe and the outer pipe, the reinforcing steel ring can reinforce the PE pipe, reinforcing rods are arranged between the steel rings, and the strength of the whole PE pipe is higher by matching with the support of the reinforcing rods, and the steel ring is convenient to install.

Description

Reinforced heat-resistant flame-retardant PE pipe with steel ring layer inside

Technical Field

The invention relates to the technical field of PE (polyethylene) pipes, in particular to a reinforced heat-resistant flame-retardant PE pipe with a steel ring layer inside.

Background

PE is polyethylene plastic, the most basic plastic, plastic bags, preservative films and the like are PE, the PE pipe comprises a medium-density polyethylene pipe and a high-density polyethylene pipe, the former is suitable for conveying gaseous artificial gas, natural gas and liquefied petroleum gas, the latter is mainly used for conveying natural gas and is compared with a steel pipe, the construction process is simple, the PE pipe has certain flexibility, and more importantly, the PE pipe does not need to be subjected to corrosion prevention treatment, a large number of working procedures are saved, but the PE pipe in the prior art has the advantages of heat resistance and flame retardance, but after long-time use or use in some special environments, the strength of the PE pipe is insufficient due to the fact that the PE pipe is made of plastic materials, the PE pipe can be damaged possibly, the surface wear resistance of the PE pipe is poor, the PE pipe cannot be used, and stable use of facilities or equipment is affected.

Therefore, the reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside is provided to solve the defects.

Disclosure of Invention

The invention aims to provide a reinforced heat-resistant flame-retardant PE pipe with a steel ring layer inside, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a heat-resisting fire-retardant PE pipe of strenghthened type that inside has steel ring layer, includes outer tube and inner tube, a plurality of spliced eyes have been seted up to the circumference on the outer tube, the spacing groove has been seted up to the lower extreme of spliced eye, and has pegged graft in the spliced eye and have elasticity antifriction device, elasticity antifriction device has partly to stretch out outside the outer tube, it has fixing device to peg graft in the outer tube, fixing device's inside is pegged graft and is had reinforcing apparatus, reinforcing apparatus evenly cup joints on the inner tube, the symmetry has seted up the locating hole on the inner tube, it has connection fixing device to peg graft in the locating hole, connection fixing device sets up on reinforcing apparatus.

Preferably, the elastic anti-friction device is an elliptical elastic sheet and a convex block, the elliptical elastic sheet is inserted into the limiting groove, the convex block is welded and fixed on the elliptical elastic sheet, and the upper end of the convex block is provided with an arc surface.

Preferably, the fixing device is a fixing sleeve, the fixing sleeve is inserted into the outer pipe and is in clearance fit with the outer pipe, a plurality of release holes are formed in the fixing sleeve in a circumferential manner, and the number of the release holes is the same as that of the insertion holes.

Preferably, the reinforcing device is a steel ring, four fixing holes are formed in the upper surface of the circumference of the steel ring at ninety degrees, moving holes are formed in the lower ends of two symmetrical fixing holes, and connecting and fixing devices are installed in the moving holes.

Preferably, matching grooves are formed in two sides of the steel ring, four connecting holes are formed in the matching grooves in the circumferential direction, the two symmetrical connecting holes penetrate through the moving hole, the annular device is connected in the matching grooves in an inserted mode, and the auxiliary reinforcing device is connected between the steel ring in an inserted mode.

Preferably, the connecting and fixing device is a positioning ball, the positioning ball is inserted into the moving hole, the diameter of the positioning ball is equal to the diameter of the moving hole and larger than the diameter of the connecting hole, the diameter of the positioning ball is smaller than the depth of the moving hole, and the positioning ball is inserted into the positioning hole in a working state.

Preferably, the annular device is a front fixing ring and a rear fixing ring, the circumference of the front fixing ring is provided with a connecting hole, the plugboard on the front fixing ring is provided with a conical groove, the plugboard is plugged in the through hole on the steel ring, the front fixing ring is plugged in the matching groove on one side, the circumference of the rear fixing ring is provided with a connecting hole, the plugboard on the rear fixing ring is provided with a conical groove, the plugboard is plugged in the through hole on the steel ring, and the rear fixing ring is plugged in the matching groove on the other side.

Preferably, the front fixing ring and the rear fixing ring are inserted into the through hole and then tightly matched together, and the tapered groove forms a tapered hole.

Preferably, the auxiliary reinforcing device is a reinforcing rod, the reinforcing rod is inserted into the connecting hole and connected with a steel ring on the inner pipe, and two ends of the reinforcing rod are fixed by threaded sleeves respectively.

Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:

1. the PE pipe is arranged into the outer pipe and the inner pipe, the reinforcing steel ring is sleeved between the inner pipe and the outer pipe, the PE pipe can be reinforced, the reinforcing rods are arranged between the steel rings, and the reinforcing rods are matched with the steel rings to support the reinforcing rods, so that the strength of the whole PE pipeline is larger, and the installation of the steel rings is convenient.

2. Under the action of the steel ring, the lug protrudes out of the outer ring, so that the PE pipe is anti-friction;

3. the connection among the outer pipe, the steel ring and the inner pipe is firmer and more stable under the action of the oval elastic sheet and the positioning ball.

Drawings

FIG. 1 is an exploded schematic view of a PE tube;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic half-section of an outer tube;

FIG. 4 is a schematic view of a half-section structure of the steel ring;

fig. 5 is a half-sectional view of the retainer ring assembly.

In the figure: 1. an outer tube; 2. fixing a sleeve; 3. steel rings; 4. an inner tube; 5. a reinforcing bar; 6. a threaded sleeve; 7. a front retaining ring; 8. a rear fixing ring; 9. a positioning ball; 10. inserting holes; 11. an elliptical spring plate; 12. a bump; 13. a circular arc surface; 14. a release aperture; 15. positioning holes; 16. a mating groove; 17. moving the hole; 18. a fixing hole; 19. connecting holes; 20. a limiting groove; 21. a tapered groove; 22. and (4) a tapered hole.

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.

Referring to fig. 1 to 5, the present invention provides a technical solution:

the utility model provides an inside has heat-resisting fire-retardant PE pipe of strenghthened type on steel ring layer, including outer tube 1 and inner tube 4, a plurality of spliced eyes 10 have been seted up to the circumference on the outer tube 1, spacing groove 20 has been seted up to the lower extreme of spliced eye 10, and the grafting has elasticity antifriction device in spliced eye 10, elasticity antifriction device has partly stretch out the outer tube 1 outer and elasticity antifriction device be oval shell fragment 11 and lug 12, oval shell fragment 11 pegs graft in spacing groove 20, lug 12 welded fastening is at oval shell fragment 11, and the upper end of lug 12 is provided with arc surface 13 and is in the outside of outer tube 1 all the time, and the direction of arc surface 13 is parallel with the central line direction of outer tube 1.

The fixing device is inserted in the outer tube 1 and is a fixing sleeve 2, the fixing sleeve 2 is inserted in the outer tube 1 and is in clearance fit with the outer tube 1, a plurality of release holes 14 are formed in the circumference of the fixing sleeve 2, the number of the release holes 14 is the same as that of the insertion holes 10, and the central lines of the release holes 14 and the central lines of the insertion holes 10 are aligned in the working state.

Fixing device's inside is pegged graft and is had reinforcing apparatus, reinforcing apparatus evenly cup joints on inner tube 4, locating hole 15 has been seted up to the symmetry on inner tube 4, it has connection fixing device to peg graft in locating hole 15, connection fixing device sets up on reinforcing apparatus and reinforcing apparatus is steel ring 3, four fixed orificess 18 have been seted up to the circumference upper surface of steel ring 3 ninety degrees, and wherein the lower extreme of two symmetry fixed orificess 18 has seted up removal hole 17, and remove and do not communicate between hole 17 and the fixed orificess 18, and install in the removal hole 17 and connect fixing device and be locating ball 9, locating ball 9 pegs graft in removal hole 17, and the diameter of locating ball 9 equals the diameter that removes hole 17 and is greater than the diameter of connecting hole 19, and its diameter is less than the degree of depth that removes hole 17, and locating ball 9 pegs graft in locating hole 15 under operating condition.

The both sides of steel ring 3 have seted up cooperation groove 16, and four connecting holes 19 have been seted up to the circumference in the cooperation groove 16, and wherein two connecting holes 19 of symmetry pass and remove hole 17, and peg graft in the cooperation groove 16 and have had annular device, and peg graft between the steel ring 3 and have supplementary reinforcing apparatus.

The annular device is preceding solid fixed ring 7 and back solid fixed ring 8, connecting hole 19 has been seted up to the circumference on the preceding solid fixed ring 7, and seted up on the plugboard on the preceding solid fixed ring 7 conical groove 21, and the plugboard pegs graft in the through-hole on steel ring 3, and preceding solid fixed ring 7 pegs graft in the cooperation groove 16 of one side, connecting hole 19 has been seted up to the circumference on the back solid fixed ring 8, and seted up conical groove 21 on the plugboard on the back solid fixed ring 8, and the plugboard pegs graft in the through-hole on steel ring 3, and back solid fixed ring 8 pegs graft in the cooperation groove 16 of opposite side.

The front fixing ring 7 and the rear fixing ring 8 are inserted into the through hole and then tightly matched together, the tapered groove 21 forms a tapered hole 22, the end with the large diameter of the tapered hole 22 faces the moving hole 17, and the diameter of the end with the small diameter is smaller than that of the positioning ball 9.

The auxiliary reinforcing device is a reinforcing rod 5, the reinforcing rod 5 is inserted into the connecting hole 19 and connected with the steel ring 3 on the inner pipe 4, and two ends of the reinforcing rod 5 are fixed by threaded sleeves 6 respectively.

The working principle is as follows: the positioning ball 9 is inserted into the moving hole 17, then the front and rear fixing rings are fixedly connected in the matching groove 16 on the steel ring 3, at this time, the positioning ball 9 is installed on the steel ring 3, namely, the connecting holes 19 on the front and rear fixing rings are aligned with the central line of the connecting hole 19 on the steel ring 3 during installation, the taper hole 22 is positioned right below the moving hole 17, at this time, the positioning ball 9 leaks out of one part of the fixing rings, at this time, when the steel ring 3 is sleeved on the inner pipe 4, the positioning ball 9 can be extruded into the moving hole 17 under the extrusion of the inner pipe 4, then the steel ring 3 is smoothly sleeved on the inner pipe 4, then the positioning ball 9 is inserted into the positioning hole 15, at this time, the reinforcing rod 5 sequentially passes through the connecting holes 19 on the steel ring 3, so that the reinforcing rod 5 connects the steel rings 3, and two reinforcing rods 5 pass through the moving hole 17, so that the reinforcing rod 5 is abutted against the upper end of the positioning ball 9, the positioning ball 9 can only be inserted in the positioning hole 15 and can not move upwards, so that the fixed connection between the steel ring 3 and the inner pipe is realized, the positioning of the steel ring 3 on the inner pipe 4 is realized, then the outer pipe 1 is sleeved on the steel ring 3, the fixing sleeve 2 is inserted in the outer pipe 1 before the positioning, the release hole 14 and the insertion hole 10 are in a dislocation state, so that the elliptical elastic sheet 11 in the fixing sleeve is in a compressed state, the convex block 12 extends to the outside of the outer pipe 1 to the maximum extent, then when the outer pipe 1 is sleeved on the steel ring 3, the fixing hole 18 on the steel ring 3 is aligned with the insertion hole 10, then the fixing sleeve 2 is rotated to align the central line of the release hole 14 on the fixing sleeve 2 with the central line of the insertion hole 10, so that the elliptical elastic sheet 11 loses support and enters the fixing hole 18 under the action of elastic force, and the elliptical elastic sheet 11 is clamped in the fixing hole 18 due to the small opening of the fixing hole 18 and the large inside, and still be in the state of compression this moment, just so make oval shell fragment 11 tightly fix in fixed orifices 18, and lug 12 moves towards the inside of outer tube 1, only arc surface 13 is in the outside of outer tube this moment, just so when installing the PE pipe it is that outer tube 1 outside arc surface 13 contacts rather than the object on every side, just so the direct contact of pipeline and external object has been avoided, the friction of pipeline has been avoided, the safety of pipeline has been guaranteed, and the fixed connection of outer tube 1 and steel ring 3 has been realized under the effect of oval shell fragment 11 and lug 12, make the rigidity of PE pipe strengthen under the effect of steel ring 3 and stiffener 5, unusual practicality.

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 an inside has heat-resisting fire-retardant PE pipe of strenghthened type on steel ring layer, includes outer tube (1) and inner tube (4), its characterized in that: the anti-friction and anti-wear joint is characterized in that a plurality of inserting holes (10) are formed in the outer pipe (1) in a circumferential mode, a limiting groove (20) is formed in the lower end of each inserting hole (10), an elastic anti-friction device is inserted in each inserting hole (10), one part of each elastic anti-friction device extends out of the outer pipe (1), a fixing device is inserted in the outer pipe (1), a reinforcing device is inserted in the fixing device, the reinforcing device is evenly sleeved on the inner pipe (4), positioning holes (15) are symmetrically formed in the inner pipe (4), a connecting and fixing device is inserted in each positioning hole (15), and the connecting and fixing device is arranged on the reinforcing device.

2. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 1, characterized in that: the elastic anti-friction device comprises an elliptical elastic sheet (11) and a convex block (12), the elliptical elastic sheet (11) is inserted into the limiting groove (20), the convex block (12) is fixed on the elliptical elastic sheet (11) in a welding mode, and an arc surface (13) is arranged at the upper end of the convex block (12).

3. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 1, characterized in that: the fixing device is a fixing sleeve (2), the fixing sleeve (2) is inserted in the outer pipe (1) in a plugging mode and is in clearance fit with the outer pipe (1), a plurality of release holes (14) are formed in the circumference of the fixing sleeve (2), and the number of the release holes (14) is the same as that of the plugging holes (10).

4. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 1, characterized in that: the reinforcing device is a steel ring (3), four fixing holes (18) are formed in the upper surface of the circumference of the steel ring (3) at an angle of ninety degrees, moving holes (17) are formed in the lower ends of two symmetrical fixing holes (18), and connecting and fixing devices are installed in the moving holes (17).

5. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 4, wherein: the steel ring reinforcing device is characterized in that matching grooves (16) are formed in two sides of the steel ring (3), four connecting holes (19) are formed in the matching grooves (16) in the circumferential direction, the two symmetrical connecting holes (19) penetrate through the moving holes (17), an annular device is inserted into the matching grooves (16), and an auxiliary reinforcing device is inserted between the steel ring (3).

6. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 1, characterized in that: the connecting and fixing device is a positioning ball (9), the positioning ball (9) is inserted in the moving hole (17), the diameter of the positioning ball (9) is equal to the diameter of the moving hole (17) and larger than the diameter of the connecting hole (19), the diameter of the positioning ball is smaller than the depth of the moving hole (17), and the positioning ball (9) is inserted in the positioning hole (15) in a working state.

7. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 5, wherein: the annular device is characterized in that the annular device comprises a front fixing ring (7) and a rear fixing ring (8), a connecting hole (19) is formed in the circumference of the front fixing ring (7), a tapered groove (21) is formed in an insertion plate on the front fixing ring (7), the insertion plate is inserted into a through hole in the steel ring (3), the front fixing ring (7) is inserted into a matching groove (16) in one side, the connecting hole (19) is formed in the circumference of the rear fixing ring (8), the tapered groove (21) is formed in the insertion plate on the rear fixing ring (8), the insertion plate is inserted into the through hole in the steel ring (3), and the rear fixing ring (8) is inserted into the matching groove (16) in the other side.

8. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 7, wherein: the front fixing ring (7) and the rear fixing ring (8) are inserted into the through hole and then tightly matched together, and the tapered groove (21) forms a tapered hole (22).

9. The reinforced heat-resistant flame-retardant PE pipe with the steel ring layer inside according to claim 5, wherein: the auxiliary reinforcing device is a reinforcing rod (5), the reinforcing rod (5) is inserted into the connecting hole (19) and connected with the steel ring (3) on the inner pipe (4), and two ends of the reinforcing rod (5) are fixed by threaded sleeves (6) respectively.