CN212028784U

CN212028784U - HDPE high strength hollow tube

Info

Publication number: CN212028784U
Application number: CN202020561128.6U
Authority: CN
Inventors: 陆维嘉
Original assignee: Huzhou Co He Pipe Co ltd
Current assignee: Zhejiang Gonghe Industrial Co.,Ltd.
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-27
Anticipated expiration: 2030-04-15

Abstract

The utility model relates to a HDPE tubular product technical field, in particular to HDPE high strength hollow tube, including the pipe body, the pipe body contains outer body and inlayer body at least, outer body sets up with the axle center with the inlayer body, be provided with the brace rod between outer body and the inlayer body, the brace rod is along the central line circumference evenly distributed of pipe body, forms the hollow groove that the axial runs through the siphunculus body between two adjacent brace rods of circumference, the inner wall of outer body is provided with the rib to protruding to the hollow inslot of inboard, the rib is located between two adjacent brace rods of circumference. The utility model discloses a weak position at outer body sets up the rib, avoids this position to reduce compressive property because of lacking the support of brace rod, has improved the whole compressive capacity of hollow tube.

Description

HDPE high strength hollow tube

Technical Field

The utility model relates to a HDPE tubular product technical field, in particular to HDPE high strength hollow tube.

Background

The double-layer axial hollow plastic pipe is widely applied to the fields of municipal water supply, drainage, chemical engineering, industrial acid-base liquid conveying and the like. The hollow layer of the current double-layer axial hollow plastic pipe mostly uses the supporting ribs which are vertically connected to support the inner pipe and the outer pipe, in order to meet the requirement of use strength, the wall thickness of the inner pipe and the wall thickness of the outer pipe are generally increased, the thickness is increased, the weight of the whole pipe is increased, the manufacturing cost is increased, and the transportation cost is correspondingly increased.

The utility model discloses a chinese utility model patent that publication number is CN209414784U discloses an axial cavity wall plastic tubing, including the body, the body contains outer body and inlayer body, outer body and inlayer body set up with the axle center, are equipped with the brace rod between outer body and the inlayer body, arbitrary two adjacent brace rods are "V" style of calligraphy and set up, and this plastic tubing is equipped with the brace rod although between outer body and inlayer body, nevertheless compares in the pipe body, and the wall thickness of outer body is less, and consequently the position between two adjacent brace rods is because the wall thickness is little and lead to the compressive capacity poor, and the atress takes place to warp easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a HDPE high strength hollow tube solves the poor problem of hollow tube compressive capacity among the prior art.

The above object of the present invention can be achieved by the following technical solutions: the utility model provides a HDPE high strength hollow tube, includes the pipe body, the pipe body contains outer body and inlayer body at least, outer body sets up with the axle center with the inlayer body, be provided with the brace rod between outer body and the inlayer body, the brace rod is along the central line circumference evenly distributed of pipe body, forms the hollow groove that the axial runs through the siphunculus body between two adjacent brace rods of circumference, the inner wall of outer body is provided with the bellied reinforcing part to the hollow inslot in inboard, strengthen between two adjacent brace rods of position in circumference.

Preferably, the thickness of the reinforcing part gradually increases from both sides to the middle.

Preferably, the reinforcing portion has an inwardly convex arc structure.

Preferably, two ends of the reinforcing part are connected with two circumferentially adjacent support ribs.

Preferably, the wall thickness of the outer tubular body is greater than the wall thickness of the inner tubular body.

Preferably, the thickness of the reinforcing part is smaller than the width of the gap between the outer-layer pipe body and the inner-layer pipe body.

Preferably, the cross section of the support rib is in a T shape or an I shape.

Preferably, two circumferentially adjacent support ribs are distributed in a V-shape.

The utility model has the advantages that:

1. the utility model arranges the reinforcing part at the weak part of the outer pipe body, thereby avoiding the reduction of the compression resistance of the weak part due to the lack of the support rib, and improving the overall compression resistance of the hollow pipe;

2. the thickness of rib is crescent to the centre by both sides, has both guaranteed that the position of keeping away from the brace rod of outer body has sufficient compressive capacity, reduces the material quantity that can the rib again, has alleviateed the whole weight of hollow tube.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;

in the figure: 1-a pipe body, 2-an outer layer pipe body, 3-an inner layer pipe body, 4-a support rib, 5-a hollow groove and 6-a reinforcing part.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the claims of the present invention.

Example 1: as shown in figure 1, a HDPE high strength hollow tube, including pipe body 1, pipe body 1 contains outer body 2 and inlayer body 3, and outer body 2 sets up with inlayer body 3 coaxial axle center, and outer body 2 sets up with inlayer body 3 interval, and all gapped between the two, and the width in clearance can be adjusted according to actual conditions. Be provided with brace rod 4 between outer body 2 and inlayer body 3, brace rod 4 is connected at outer body 2 and inlayer body 3, and the three is as an organic whole and is connected.

The supporting ribs 4 are evenly distributed along the circumference of the central line of the pipe body 1, a hollow groove 5 is formed between two circumferentially adjacent supporting ribs 4, and the hollow groove 5 axially penetrates through the pipe body 1. The weight of the pipe body 1 is greatly reduced by the hollow groove 5, and production raw materials are reduced.

The inner wall of outer body 2 is provided with the rib 6 of protruding to hollow groove 5 inboard, and rib 6 is located between two adjacent brace rods 4 of circumference, and two adjacent brace rods 4 of circumference link to each other at the both ends of rib 6. Wherein, the reinforcing part 6 is a strip structure, extends along the axial direction of the pipe body 1 and is integrally connected with the outer layer pipe body 2.

The cross-sectional structure of the reinforcing part 6 is a circular arc and protrudes inward (i.e., toward the direction close to the inner pipe body 3). In the circumferential direction, the thickness of the reinforcing portion 6 gradually increases from both sides toward the middle, that is, gradually increases from both ends near the support rib 4 toward the middle of the reinforcing portion 6. Because be close to brace rod 4 position, outer body 2 receives the supporting role of brace rod 4 and compressive capacity is strong, and the position of keeping away from brace rod 4 is because the wall thickness is little, and compressive capacity is weak, therefore the structure of rib 6 can be according to the thickness of the compressive capacity adjustment rib 6 of outer body 2 to save manufacturing raw materials, alleviate the dead weight.

In the present embodiment, the thickness of the reinforcing portion 6 is smaller than the width of the gap between the outer tubular body 2 and the inner tubular body 3, that is, the reinforcing portion 6 does not contact the outer surface of the inner tubular body 3, thereby reducing the weight of the tubular body as much as possible.

Since the inner pipe 3 receives the outside pressure cage, the wall thickness of the outer pipe 2 is greater than that of the inner pipe 3, thereby improving the resistance of the pipe body 1 to the outside pressure.

Example 2: as shown in figure 2, a HDPE high strength hollow tube, including pipe body 1, pipe body 1 contains outer body 2 and inlayer body 3, and outer body 2 sets up with inlayer body 3 coaxial axle center, and outer body 2 sets up with inlayer body 3 interval, and all gapped between the two, and the width in clearance can be adjusted according to actual conditions. Be provided with brace rod 4 between outer body 2 and inlayer body 3, brace rod 4 is connected at outer body 2 and inlayer body 3, and the three is as an organic whole and is connected. The cross section of the support rib 4 is T-shaped, the end with the larger width of the support rib 4 is connected to the inner wall of the outer pipe body 2, and the end with the smaller width of the support rib 4 is connected to the outer wall of the inner pipe body 3, so that the support range of the support rib 4 to the outer pipe body 2 is enlarged.

The supporting ribs 4 are evenly distributed along the circumference of the central line of the pipe body 1, a hollow groove 5 is formed between two circumferentially adjacent supporting ribs 4, and the hollow groove 5 axially penetrates through the pipe body 1.

Example 3: as shown in figure 3, a HDPE high strength hollow tube, including pipe body 1, pipe body 1 contains outer body 2 and inlayer body 3, and outer body 2 sets up with inlayer body 3 coaxial axle center, and outer body 2 sets up with inlayer body 3 interval, and all gapped between the two, and the width in clearance can be adjusted according to actual conditions. Be provided with brace rod 4 between outer body 2 and inlayer body 3, brace rod 4 is connected at outer body 2 and inlayer body 3, and the three is as an organic whole and is connected. Wherein the cross section of the support rib 4 is I-shaped.

Example 4: the utility model provides a HDPE high strength hollow tube, includes pipe body 1, and pipe body 1 contains outer body 2 and inlayer body 3, and outer body 2 sets up with the axle center with inlayer body 3, and outer body 2 sets up with 3 intervals of inlayer body, all gapped between the two, and the width in clearance can be adjusted according to actual conditions. Be provided with brace rod 4 between outer body 2 and inlayer body 3, brace rod 4 is connected at outer body 2 and inlayer body 3, and the three is as an organic whole and is connected.

In this embodiment, two circumferentially adjacent support bars 4 are distributed in a V shape, the included angle between the two support bars is 30 degrees to 60 degrees, the V-shaped openings of the two support bars 4 face the outer pipe body 2, and the reinforcing part 6 is located in the V-shaped openings of the two support bars 4.

Claims

1. The utility model provides a HDPE high strength hollow tube, includes pipe body (1), pipe body (1) contains outer body (2) and inlayer body (3) at least, outer body (2) and inlayer body (3) set up with the axle center, be provided with brace rod (4) between outer body (2) and inlayer body (3), brace rod (4) are along the central line circumference evenly distributed of pipe body (1), form hollow groove (5) that the axial runs through siphunculus body (1) between two adjacent brace rod (4) of circumference, its characterized in that: the inner wall of the outer pipe body (2) is provided with a reinforcing part (6) protruding to the inner side of the hollow groove (5), and the reinforcing part (6) is located between two circumferentially adjacent supporting ribs (4).

2. The high-strength HDPE hollow pipe according to claim 1, wherein: the thickness of the reinforcing part (6) is gradually increased from two sides to the middle.

3. The high-strength HDPE hollow pipe of claim 2, wherein: the reinforcing part (6) is of an arc structure protruding towards the inner side.

4. The high-strength HDPE hollow pipe according to claim 3, wherein: two ends of the reinforcing part (6) are connected with two circumferentially adjacent support ribs (4).

5. The high-strength HDPE hollow pipe according to claim 1, wherein: the wall thickness of the outer layer pipe body (2) is larger than that of the inner layer pipe body (3).

6. The high-strength HDPE hollow pipe according to claim 1, wherein: the thickness of the reinforcing part (6) is smaller than the width of a gap between the outer-layer pipe body (2) and the inner-layer pipe body (3).

7. The high-strength HDPE hollow pipe according to claim 1, wherein: the cross section of the support rib (4) is T-shaped or I-shaped.

8. The high-strength HDPE hollow pipe according to claim 1, wherein: two circumferentially adjacent support ribs (4) are distributed in a V shape.