CN211118211U

CN211118211U - Connecting joint of HDPE double-wall corrugated pipe

Info

Publication number: CN211118211U
Application number: CN201921987873.0U
Authority: CN
Inventors: 方文学; 李明
Original assignee: Anhui Wanfang Pipe Industry Group Co ltd
Current assignee: Anhui Wanfang Pipe Industry Group Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-28
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses a connected node of HDPE double-walled bellows, including first bellows, the second bellows, sealing washer and fixing clip strip, first bellows, the second bellows is by the binding off end, the flaring end, and double-walled pipe body is constituteed, the binding off end, the flaring end sets up the both ends at the double-walled pipe body respectively, the binding off end, be provided with tubulose holding end on the flaring end terminal surface respectively, tubulose flaring end, the tubulose holding end block of second bellows is in the tubulose flaring end of first bellows, the sealing washer block is between the binding off end of second bellows and the flaring end of first bellows, the fixing clip strip sets up in the junction periphery of first bellows and second bellows, and pass through the bolt fastening. The utility model discloses the connected node of HDPE double-walled bellows, simple and practical, the leakproofness is high, and the fastness is good, reliable and stable, and live time is long, and is not fragile, convenient to use.

Description

Connecting joint of HDPE double-wall corrugated pipe

Technical Field

The utility model relates to the technical field of pipelines, specifically be a connected node of HDPE double-walled bellows.

Background

HDPE double-walled bellows, a new kind of light tubular material taking high density polyethylene as raw materials, have light in weight, high pressure resistant, toughness good, construction fast, long-lived characteristic, its excellent pipe wall structural design, compare with tubular material of other structures, because its excellent performance and relatively economic fabrication cost, and because connect convenient, reliable, get the extensive application at home and abroad, substitute concrete pipe and cast iron pipe in a large number.

At present, HDPE double-walled bellows generally adopts the mode of hot melt connection in the in-service use installation, links together two sections double-walled bellows, and no matter be electric smelting link up, socket joint formula hot melt link up, direct hot melt link up etc. all need use special hot melt instrument in the installation linking process, higher to technical requirement moreover, need professional technical personnel to install the operation, the installation is comparatively complicated. Particularly, in the field, narrow environment and other operation places, the hot melting is very inconvenient, and the difficulty of installation and connection is increased. Meanwhile, due to the difficulty of hot melting operation, the problems of instable installation and untight sealing are easily caused in the process of connecting and installing the double-wall corrugated pipe, the leakage of substances in the pipeline is easily caused after the double-wall corrugated pipe is installed and used, and the maintenance and the replacement are frequent.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: a connection node of HDPE double-wall corrugated pipe is provided to solve the above defects.

In order to achieve the above object, the present invention provides the following technical solutions:

a connecting joint of HDPE double-wall corrugated pipes comprises a first corrugated pipe, a second corrugated pipe, a sealing ring and a fixing clamping strip which are used for connecting the first corrugated pipe and the second corrugated pipe, the first corrugated pipe and the second corrugated pipe are respectively composed of a closing end, a flaring end and a double-wall pipe body, the closing-in end and the flaring end are respectively arranged at two ends of the double-wall pipe body, the end surfaces of the closing-in end and the flaring end are respectively provided with a tubular closing-in end and a tubular flaring end, the tubular closing end of the second corrugated pipe is clamped in the tubular flaring end of the first corrugated pipe, the sealing ring is clamped between the closing end of the second corrugated pipe and the flaring end of the first corrugated pipe, the fixing clamping strip is arranged on the periphery of the joint of the first corrugated pipe and the second corrugated pipe, and is fixed on the closing-in end head of the second corrugated pipe and the flaring end head of the first corrugated pipe through bolts.

Preferably, the inside of the closing-up end and the flaring end are both provided with annular reinforcing ribs, the peripheries of the closing-up end and the flaring end are provided with a plurality of blind holes, and the bottoms of the blind holes are arranged on the annular reinforcing ribs.

Preferably, the sealing ring is a T-shaped annular rubber sealing ring, and the T-shaped lower end of the T-shaped annular rubber sealing ring is arranged in a gap at the joint of the tubular flared end of the first corrugated pipe and the closed end of the second corrugated pipe; the T upper end of the T-shaped annular rubber sealing ring is annular and strip-shaped and wraps the periphery of the joint of the first corrugated pipe and the second corrugated pipe.

Preferably, the fixing clamp strip is provided with a plurality of, the fixing clamp strip is arranged on the outer side of the T-shaped annular rubber sealing ring, the two ends of the fixing clamp strip are respectively fixed in the peripheral blind holes of the closing-up end and the flaring end through bolts, and the front ends of the bolts are meshed on the annular reinforcing ribs.

Preferably, double-walled pipe body includes wave HDPE outer wall pipe layer, rubber inner wall pipe layer, interior wall pipe supporting layer and interior wall pipe waterproof anticorrosive coating that outside-in set gradually, be provided with a plurality of annular protruding ridges on the rubber inner wall pipe layer, the protruding ridge of annular is fixed one by one with the trough department on wave HDPE outer wall pipe layer.

Preferably, a plurality of annular convex reinforcing ribs corresponding to the annular convex ridges one by one are arranged on the inner wall pipe supporting layer.

Preferably, the wave trough of the wavy HDPE outer wall pipe layer is provided with an annular limiting reinforcing rib.

Preferably, two ends of the inner wall tube supporting layer of the double-wall tube body are respectively fixed on the annular reinforcing ribs at the closing-up end and the flaring end.

The beneficial effects of the utility model reside in that:

the utility model discloses a device, through set up binding off end, flaring end respectively at first bellows, second bellows both ends, be provided with tubulose hold-in end, tubulose flaring end respectively on binding off end, the flaring end terminal surface, the tubulose hold-in end block of second bellows is in the tubulose flaring end of first bellows, realizes that the interlock of two bellows head and the tail is fixed; a sealing ring and a fixing clamping strip are arranged between the first corrugated pipe and the second corrugated pipe and are fixed through bolts, so that the sealing is firm and reliable; the rigidity of the closing-in end and the flaring end is enhanced and the stability of bolt fixation is improved by arranging the annular reinforcing ribs in the closing-in end and the flaring end; the two ends of the inner wall pipe supporting layer of the double-wall pipe body are respectively fixed on the annular reinforcing ribs of the closing-in end and the flaring end, so that the reliability of connection between the double-wall pipe body and the closing-in end and the flaring end at the two ends is improved. The utility model discloses the connected node of HDPE double-walled bellows, simple and practical, the leakproofness is high, and the fastness is good, reliable and stable, and live time is long, and is not fragile, convenient to use.

Drawings

FIG. 1: the utility model has a schematic structure;

FIG. 2: the utility model discloses a department's structure schematic diagram.

Detailed Description

The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1-2:

as shown in fig. 1 and 2, a connection node of HDPE double-wall corrugated pipe comprises a first corrugated pipe 1, a second corrugated pipe 2, and a sealing ring 7 and a fixing clamping strip 8 for connecting the first corrugated pipe 1 and the second corrugated pipe 2. The first corrugated pipe 1 and the second corrugated pipe 2 are composed of a closing-up end 3, a flaring end 4 and a double-wall pipe body 5, and the closing-up end 3 and the flaring end 4 are respectively arranged at two ends of the double-wall pipe body 5.

The double-wall pipe body 5 comprises a wavy HDPE outer wall pipe layer 51, a rubber inner wall pipe layer 52, an inner wall pipe supporting layer 53 and an inner wall pipe waterproof and anticorrosive layer 54 which are sequentially arranged from outside to inside, wherein a plurality of annular raised ridges 521 are arranged on the rubber inner wall pipe layer 52, and the annular raised ridges 521 are fixed with the wave troughs of the wavy HDPE outer wall pipe layer 51 one by one; a plurality of annular convex reinforcing ribs 531 which correspond to the annular convex ridges 521 one by one are arranged on the inner wall pipe supporting layer 53; the wave trough of the wave-shaped HDPE outer wall pipe layer 51 is provided with an annular limiting reinforcing rib 511.

Close up end 3, be provided with tubulose hold-in end 31 on the 4 terminal surfaces in flaring end, tubulose flaring end 41, the tubulose hold-in end 31 block of second bellows 2 is in the tubulose flaring end 41 of first bellows 1, sealing washer 7 block is between the close up end 3 of second bellows 2 and the flaring end 4 of first bellows 1, fixed card strip 8 sets up on the junction periphery of first bellows 1 and second bellows 2, and fix on the close up end 3 of second bellows 2 and the flaring end 4 of first bellows 1 through bolt 9.

The sealing ring 7 is a T-shaped annular rubber sealing ring, and the T-shaped lower end of the T-shaped annular rubber sealing ring 7 is arranged in a gap at the joint of the tubular flared end 41 of the first corrugated pipe 1 and the closed end 3 of the second corrugated pipe 2; the T-shaped upper end of the T-shaped annular rubber sealing ring 7 is in an annular belt shape and wraps the periphery of the joint of the first corrugated pipe 1 and the second corrugated pipe 2.

Close up end 3, flaring end 4 inside all be provided with annular strengthening rib 6, be provided with a plurality of blind hole on the periphery of close up end 3, flaring end 4, the bottom setting of blind hole is on annular strengthening rib 6. Fixing clip strip 8 is provided with a plurality of, and fixing clip strip 8 sets up in the outside of T type annular rubber material sealing washer 7, and all fixes respectively in the periphery blind hole of binding off end 3, flaring end 4 through bolt 9 at its both ends, and the front end interlock of bolt 9 is on annular strengthening rib 6. Two ends of an inner wall tube supporting layer 53 of the double-wall tube body 5 are respectively fixed on the annular reinforcing ribs 6 of the closing-up end 3 and the flaring end 4.

The utility model discloses the connected node of HDPE double-walled bellows, simple and practical, the leakproofness is high, and the fastness is good, reliable and stable, and live time is long, and is not fragile, convenient to use.

The above description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the method and the technical solution of the present invention are not substantially improved or directly applied to other occasions without improvement, and are all within the protection scope of the present invention.

Claims

1. The utility model provides a connected node of HDPE double-walled bellows, its characterized in that includes first bellows (1), second bellows (2), and sealing washer (7) and fixed card strip (8) of connecting first bellows (1) and second bellows (2), first bellows (1), second bellows (2) comprise closing up end (3), flaring end (4) and double-walled pipe body (5), closing up end (3), flaring end (4) set up respectively at the both ends of double-walled pipe body (5), be provided with tubulose closing up end (31), tubulose flaring end (41) on closing up end (3), flaring end (4) terminal surface respectively, tubulose closing up end (31) of second bellows (2) block is in tubulose flaring end (41) of first bellows (1), sealing washer (7) block is in closing up end (3) of second bellows (2) and the end (1) of first bellows (1) 4) The fixing clamping strip (8) is arranged on the periphery of the joint of the first corrugated pipe (1) and the second corrugated pipe (2) and is fixed on the closing-in end (3) of the second corrugated pipe (2) and the flaring end (4) of the first corrugated pipe (1) through bolts (9).

2. The connection node of HDPE double-wall corrugated pipe according to claim 1, wherein the inside of each of the closing end (3) and the flaring end (4) is provided with an annular reinforcing rib (6), the outer peripheries of the closing end (3) and the flaring end (4) are provided with a plurality of blind holes, and the bottoms of the blind holes are arranged on the annular reinforcing ribs (6).

3. The connection node of HDPE double-wall corrugated pipe according to claim 2, wherein the sealing ring (7) is a T-shaped annular rubber sealing ring, and the T-shaped lower end of the T-shaped annular rubber sealing ring (7) is arranged in a gap at the joint of the tubular flared end (41) of the first corrugated pipe (1) and the closed end (3) of the second corrugated pipe (2); the T upper end of the T-shaped annular rubber sealing ring (7) is in an annular belt shape and wraps the periphery of the joint of the first corrugated pipe (1) and the second corrugated pipe (2).

4. The connection node of HDPE double-wall corrugated pipe according to claim 3, wherein a plurality of fixing clamping strips (8) are provided, the fixing clamping strips (8) are provided outside the T-shaped annular rubber sealing ring (7), and both ends of the fixing clamping strips are respectively fixed in the peripheral blind holes of the closing-in end (3) and the flaring end (4) through bolts (9), and the front ends of the bolts (9) are engaged on the annular reinforcing ribs (6).

5. The connection node of HDPE double-wall corrugated pipe according to claim 2, wherein the double-wall pipe body (5) comprises a wavy HDPE outer wall pipe layer (51), a rubber inner wall pipe layer (52), an inner wall pipe support layer (53) and an inner wall pipe waterproof and anticorrosive layer (54) which are arranged from outside to inside in sequence, a plurality of annular raised ridges (521) are arranged on the rubber inner wall pipe layer (52), and the annular raised ridges (521) are fixed with the wave troughs of the wavy HDPE outer wall pipe layer (51) one by one.

6. The connection node of HDPE double-wall corrugated pipe according to claim 5, wherein the inner wall pipe support layer (53) is provided with a plurality of annular convex reinforcing ribs (531) corresponding to the annular convex ridges (521) one by one.

7. A connection node of HDPE double-wall corrugated pipe according to claim 5, characterized in that the wave trough of the wavy HDPE outer wall pipe layer (51) is provided with an annular limiting reinforcing rib (511).

8. The connection node of HDPE double-wall corrugated pipe according to claim 5, wherein the two ends of the inner wall pipe support layer (53) of the double-wall pipe body (5) are respectively fixed on the annular reinforcing ribs (6) of the closing end (3) and the flaring end (4).