CN211118051U

CN211118051U - Plastic krah pipe

Info

Publication number: CN211118051U
Application number: CN201922193372.1U
Authority: CN
Inventors: 杨建华; 郭林; 冯海军
Original assignee: Sichuan Renzhi New Material Technology Co ltd
Current assignee: Sichuan Renzhi New Material Technology Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-28
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a plastics carat pipe, include: a pipe body; the utility model discloses a tubular structure, including the body, the body is equipped with the inner tube, the inner tube is equipped with the inner tube axial interval, the bead is followed, the supporting tube, its winding is fixed in on the body outer wall, the supporting tube includes outer tube, coaxial cover is located inner tube in the outer tube, edge inner tube axial interval set up in a plurality of beaded finish of inner tube inside, wherein, inner tube outer wall circumference is equipped with many beads, the bead is followed the radial cross-section of inner tube is similar isosceles trapezoid, the bead top is followed inner tube axial interval is equipped with a plurality of bumping posts, the bumping post top is fixed in on the outer tube inner wall, the beaded finish is. The utility model discloses have the beneficial effect that improves ring rigidity, compressive strength, the local compressive capacity of carat pipe.

Description

Plastic krah pipe

Technical Field

The utility model relates to a carat pipe field. More specifically, the utility model relates to a plastics carat pipe.

Background

The Krah pipe is a high-density polyethylene (HDPE) winding structure wall pipe formed by hot winding. The wall pipe is a special structure wall pipe with high external pressure resistance, which is prepared by taking high-density polyethylene resin as a main raw material, adopting a hot winding poplar type process and taking a polypropylene (PP) single-wall corrugated pipe as a supporting structure. The underground pipeline is widely used for urban water supply and drainage pipelines, is usually buried underground, needs to bear huge pressure due to the complex underground environment, particularly in the time of secondary construction of facilities, the appearance of the Clar pipe is damaged due to excavation collision, and the collision of partial positions can cause the breakage of collision positions in serious cases, thereby influencing the overall strength of the Clar pipe. Therefore, the ring stiffness, the compressive strength and the local compressive capacity of the Krah pipe need to be improved.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

The utility model discloses still another purpose provides a plastics carat pipe, can improve ring rigidity, compressive strength, the local compressive capacity of carat pipe.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a plastic krah pipe comprising:

a pipe body;

the utility model discloses a tubular structure, including the body, the body is equipped with the inner tube, the inner tube is equipped with the inner tube axial interval, the bead is followed, the supporting tube, its winding is fixed in on the body outer wall, the supporting tube includes outer tube, coaxial cover is located inner tube in the outer tube, edge inner tube axial interval set up in a plurality of beaded finish of inner tube inside, wherein, inner tube outer wall circumference is equipped with many beads, the bead is followed the radial cross-section of inner tube is similar isosceles trapezoid, the bead top is followed inner tube axial interval is equipped with a plurality of bumping posts, the bumping post top is fixed in on the outer tube inner wall, the beaded finish is.

Preferably, the number of the ribs is 8, and the included angle of the opposite side walls between two adjacent ribs is 60 degrees.

Preferably, a plurality of connecting bands are arranged between the opposite side walls of the two adjacent convex edges at intervals along the axial direction of the inner tube, and the Shore hardness value of each connecting band is smaller than that of each convex edge.

Preferably, the end of the connecting band is located at the middle point of the waist line of the rib along the radial section of the inner tube.

Preferably, the ratio of the radial length of the buffer column and the convex edge along the inner pipe, the inner diameter of the inner pipe and the inner diameter of the outer pipe is 1: 1.8-2: 8-10: 12-16.

Preferably, the Shore hardness values of the reinforcing ring, the inner pipe, the convex edge, the buffer column and the outer pipe are respectively 80-90D, 80-90A, 50-60D, 50-60A and 80-90D.

Preferably, the diameter of the top of the buffer column is smaller than that of the bottom thereof.

Preferably, disc-shaped fixed blocks are arranged at three top points of the reinforcing ring, the fixed blocks are fixed on the inner wall of the inner pipe, and the shore hardness value of the fixed blocks is between that of the reinforcing ring and that of the inner pipe.

The utility model discloses at least, include following beneficial effect:

first, adopt double-deck outer tube and the inner tube of establishing of cover, can increase the impaired performance of the resistance outward appearance of carat pipe.

And secondly, the convex ribs and the buffer columns are arranged to further enhance the connection relation between the outer pipe and the inner pipe, so that the ring rigidity of the carat pipe is improved, and the supporting effect of the carat pipe is improved.

Third, the setting of beaded finish mainly is the intensity of reinforcing inner tube, when guaranteeing the holistic pliability of carat pipe, reduces the deformation degree of inner tube to the realization bears strong exogenic action when carat pipe, and carat pipe part takes place to warp, damages, and has shortened life.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic axial cross-sectional view of the Krah pipe according to one embodiment of the present invention;

fig. 2 is a schematic radial cross-sectional view of the support tube according to one embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in FIGS. 1-2, the utility model provides a plastic krah pipe, include:

a pipe body 1; the inner surface is smooth, the water flow resistance is reduced, and the water flow conveying is facilitated.

Stay tube 2, its winding is fixed in on the 1 outer wall of body, stay tube 2 includes that outer tube 3, coaxial cover are located inner tube 4 in the outer tube 3, edge 4 axial intervals of inner tube set up in a plurality of beaded finish 5 of inner tube 4 inside, wherein, 4 outer wall circumference of inner tube are equipped with many beads 6, bead 6 is followed 4 radial cross-sections of inner tube are similar isosceles trapezoid, 6 tops of bead are followed 4 axial intervals of inner tube are equipped with a plurality of

bumping post

7, 7 tops of bumping post are fixed in on the 3 inner walls of outer tube, beaded finish 5 is triangle-shaped, three summit of beaded finish 5 is fixed in on 4 inner walls of inner tube.

In above-mentioned technical scheme, adopt outer tube 3 and inner tube 4 that double-deck cover was established, can increase the impaired performance of resistance outward appearance of carat pipe, the relation of connection between 3 and the inner tube 4 of outer tube of further reinforcing of setting of bead 6 and bumping post 7, improve the ring rigidity of carat pipe, thereby improve the supporting role of carat pipe, the setting of beaded finish 5 mainly is the intensity of reinforcing inner tube 4, when guaranteeing the holistic pliability of carat pipe, reduce the deformation degree of inner tube 4, thereby realize when the carat pipe bears strong exogenic action, carat pipe part takes place to warp, damage, and life has been shortened.

In another technical scheme, the number of the convex ribs 6 is 8, and the included angle of the opposite side walls between two adjacent convex ribs 6 is 60 degrees. The force bearing angle is beneficial to protecting the inner pipe 4.

In another technical scheme, a plurality of connecting bands 8 are arranged between the opposite side walls of two adjacent convex edges 6 at intervals along the axial direction of the inner tube 4, and the Shore hardness value of the connecting bands 8 is smaller than that of the convex edges 6. When subjected to multi-directional pressure, the connecting band 8 can transmit the pressure to the rest of the ribs 6, thereby enhancing the pressure resistance.

In another solution, the end of the connecting strip 8 is located at the middle point of the belt line of the radial section of the rib 6 along the inner tube 4. The weakest position in the isosceles trapezoid is at the waist line, and the connecting belt 8 is fixed at the position, so that the force transmission is facilitated, and the convex edge 6 is protected.

In another technical scheme, the ratio of the radial length of the buffer column 7 and the convex edge 6 along the inner pipe 4, the inner diameter of the inner pipe 4 and the inner diameter of the outer pipe 3 is 1: 1.8-2: 8-10: 12-16. The volume of the cavity in the supporting tube 2 can be maximized without affecting the rigidity of the ring, the weight of the Krah tube can be reduced, and the practical application in engineering can be facilitated.

In another technical scheme, Shore hardness values of the reinforcing ring 5, the inner pipe 4, the convex ribs 6, the buffer columns 7 and the outer pipe 3 are respectively 80-90D, 80-90A, 50-60D, 50-60A and 80-90D. Set up to the alternative form of hard and soft, be favorable to protecting rigid structure, can guarantee the toughness characteristic of carat pipe again.

In another technical scheme, the diameter of the top of the buffer column 7 is smaller than that of the bottom thereof. Is favorable for improving the radial pressure resistance of the carat pipe.

In another technical scheme, disc-shaped fixing blocks 9 are arranged at three vertexes of the reinforcing ring 5, the fixing blocks 9 are fixed on the inner wall of the inner tube 4, and the shore hardness value of the fixing blocks 9 is between the shore hardness values of the reinforcing ring 5 and the inner tube 4. It is advantageous to protect the inner tube 4 at the location where it is connected to the reinforcement ring 5.

The Shore hardness value refers to a reading obtained by measurement of a Shore durometer, D represents a reading obtained by measurement of a Shore durometer D, A represents a reading obtained by measurement of a Shore durometer A, and the units are degrees.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A plastic krah pipe, comprising:

a pipe body;

2. A plastic carat tube as claimed in claim 1, wherein the number of fins is 8, and the angle of the opposed side walls between two adjacent fins is 60 °.

3. A plastic carat tube as claimed in claim 2, wherein a plurality of connecting strips are provided at axially spaced intervals along the inner tube between opposite side walls of adjacent ribs, said connecting strips having a shore hardness value less than the shore hardness value of said ribs.

4. A plastic carat tube as claimed in claim 3, wherein the ends of the web are located at the mid-point of the waistline of a radial cross-section of the fin along the inner tube.

5. The plastic pipe as claimed in claim 1, wherein the ratio of the length of the bump stop and the ridge in the radial direction of the inner pipe to the inner diameter of the outer pipe is 1:1.8 to 2:8 to 10:12 to 16.

6. The plastic krah pipe as claimed in claim 1 wherein the shore hardness values of the reinforcing ring, the inner pipe, the ridge, the bumper post and the outer pipe are 80-90D, 80-90A, 50-60D, 50-60A and 80-90D respectively.

7. A plastic straw as claimed in claim 1, wherein the diameter of the top of the shock absorber column is smaller than the diameter of the bottom of the shock absorber column.

8. The plastic krah pipe as claimed in claim 1, wherein the reinforcing ring has a disc-shaped fixing block at three vertices, the fixing block is fixed on the inner wall of the inner pipe, and the shore hardness value of the fixing block is between the shore hardness values of the reinforcing ring and the inner pipe.