CN208982813U

CN208982813U - PP cross-rib enhances PE helical bellows and profile

Info

Publication number: CN208982813U
Application number: CN201821352403.2U
Authority: CN
Inventors: 陈永委
Original assignee: GUANGDONG TONGSU PIPELINE CO Ltd
Current assignee: GUANGDONG TONGSU PIPELINE CO Ltd
Priority date: 2018-08-21
Filing date: 2018-08-21
Publication date: 2019-06-14
Anticipated expiration: 2028-08-21

Abstract

The utility model provides PP cross-rib enhancing PE helical bellows and profile, the bellows include the matrix made of PE band spiral winding and be helically wound it is adjacent squeeze out PE band clinch profile, profile includes PP skeleton and PE layers, PE layers are coated in PP framework, this set is conducive to the connection of profile and matrix, bellows structure is stablized, and can bear the biggish pressure from radial direction, be remarkably improved the ring stiffness of bellows.

Description

PP cross-rib enhances PE helical bellows and profile

Technical field

The utility model relates to municipal corrugated conduits, and in particular to PP cross-rib enhances PE helical bellows and profile.

Background technique

Helical bellows with reinforcing rib are widely used due to sharing effect and ring stiffness with good pipeclay In the construction of municipal blow-off line, application No. is CN201220283214.0, publication date is the patent text on January 16th, 2013 A kind of enhanced helical bellows of band internal-rib tubing, including inner layer tube wall and outer wall are disclosed in part, on outer wall It is formed with the hollow form fin of spiral；Tubing is equipped in hollow form fin, the cross section of tubing includes framework and is located in framework Cross rib and longitudinal rib at an angle to each other.The helical bellows structure of this utility model can bear biggish radial pressure, helicon The ring stiffness of line pipe is high.But this bellows its inner layer tube wall, outer wall and fin are all using HDPE material, tubing makes With PP material, after the tubing of the fin cladding PP material of HDPE material, the contact portion of the tubing of PP material is and HDPE material Outer wall contact, the tubing and outer wall of unlike material can not be fused into an entirety, be unfavorable for pipe structure Stabilization.

Summary of the invention

To solve problems of the prior art, the utility model provides PP cross-rib enhancing PE helical bellows and type Material, the bellows and profile of the utility model can further promote the ring stiffness of bellows, and the stable structure of bellows.

In order to achieve the above objectives, the utility model, which provides PP cross-rib, enhances PE helical bellows, including by PE band spiral shell The profile for revolving the matrix being entwined and being helically wound at the adjacent clinch for squeezing out PE band, the profile include PP skeleton and PE layers, PP skeleton includes PP cross-rib and the PP framework for being coated on PP cross-rib periphery, and PE layers are coated on PP framework On.

Arrangement above, profile are interior PP cross-rib, outer PP frame structure, and PP is rigidly good, and impact resistance is strong, this structure Profile structure is stablized, and can bear the biggish pressure from radial direction, be remarkably improved the ring stiffness of bellows；In PP framework PE layers of upper cladding, since matrix is formed by the band spiral winding of PE material, same material can mutually be fused into an entirety, The structure of bellows is more stable.

Further, PP framework cross section is polygon or semicircle, and this set can be such that PP frame structure stablizes, Further promote the non-deformability and ring stiffness of bellows.

Further, the profile is helically wound at the interconnecting piece of adjacent PE band, and this set can enhance Intensity at interconnecting piece enhances the structural stability of bellows.

Further, the PE band has clinch, and adjacent PE band is linked together by clinch, the type Material is helically wound at the clinch of adjacent PE band, latter circle PE band is overlapped on previous circle PE band, energy It bears to can effectively prevent MATRIX CRACKING than connecting bigger radial force between adjacent PE band by end face, enhance the structure of matrix Stability.

In order to achieve the above objectives, the utility model additionally provides PP cross-rib profile, including PP skeleton and PE layers, PP skeleton Including PP cross-rib and the PP framework for being coated on PP cross-rib periphery, PE layers are coated in PP framework.

Arrangement above, profile are interior PP cross-rib, outer PP frame structure, and PP is rigidly good, and impact resistance is strong, this structure Profile structure is stablized, and the biggish pressure from radial direction can be born；PE layers are coated in PP framework, since matrix is by PE The band spiral winding of material forms, and same material can mutually be fused into an entirety, and the structure of bellows is more stable.

Further, PP framework cross section is polygon or semicircle, stablizes PP frame structure.Further promoted The non-deformability and ring stiffness of bellows.

Detailed description of the invention

Fig. 1 is the cross-sectional structure schematic diagram of PP skeleton.

Fig. 2 is that adjacent PE band mutually overlaps the structural schematic diagram for having not gone through and rolling.

Fig. 3 is the cross-sectional structure schematic diagram of profile.

Specific embodiment

The utility model is described in further details with reference to the accompanying drawings and detailed description.

As shown in Figure 1 to Figure 3, PP cross-rib enhances PE helical bellows, including the base as made of 2 spiral winding of PE band Body 1 and the profile 3 being helically wound on matrix 1.

PE band 2 includes clinch 21, and adjacent PE band 2 is connected by clinch 21, in the molten state, by the The pressing of clinch 21 of adjacent PE band 2 is welded together by one pinch roller, forms integrated matrix 1, profile 3 is in a spiral manner It is wrapped at clinch 21.

Profile 3 includes PP skeleton 31 and PE layer 32, and PP skeleton 31 includes PP cross-rib 311 and is coated on PP cross-rib 311 The trapezoidal PP framework 312 of periphery, PE layer 32 are coated in trapezoidal PP framework 312,312 groups of PP cross-rib 311 and trapezoidal PP framework At 31 stable structure of PP skeleton, when having in external force to bellows, in PP cross-rib 311 and trapezoidal PP framework 312 Under interaction, bellows deformation can be effectively limited, to improve the utility model PP cross-rib enhancing PE helical corrugation The non-deformability of pipe, improves ring stiffness；In the external sheath PE layer 32 of trapezoidal PP framework 312, since matrix is by PE material The band spiral winding of matter forms, and after by 3 spiral winding of profile to the adjacent clinch 21 for squeezing out PE band 2, is melting Under state, profile 3 and matrix 1 are welded together by the second idler wheel, same material can mutually be fused into an entirety, due to Profile 3 and matrix 1 are the bottom surface and 1 welding of matrix by profile 3, and welding area is big, therefore profile 3 can be securely fixed in On matrix 1, it is not easy to be removed from matrix 1, therefore bellows structure is stablized.

As shown in figures 1 and 3, PP cross-rib profile, including PP skeleton 31 and PE layer 32, PP skeleton 31 include PP cross-rib The 311 trapezoidal PP frameworks 312 peripheral with PP cross-rib 311 is coated on, PE layer 32 are coated in trapezoidal PP framework 312, PP cross 31 stable structure of PP skeleton of muscle 311 and trapezoidal PP framework 312 composition, is unlikely to deform, at PE layers of external sheath of PP skeleton 31 32, since the matrix 1 of bellows is all that can be conducive to using PE material in the setting of the external sheath PE layer 32 of PP skeleton 31 The connection of profile 3 and matrix 1 because same material can mutually be fused into an entirety, on profile 3 spiral winding to matrix 1 after Bellows structure can be more stable.

Arrangement above, adjacent PE band 2 rolled again with the first pinch roller after mode connects by the way that overlapped it is smooth, due to wave Line pipe is mainly acted on by the power of radial direction when in use, and using overlapped, mode connects adjacent PE band 2, adjacent PE band The connection area of material 2 is big, when there is the power of radial direction to act on lap-joint, can make under one layer of 2 moment of PE band compression above One layer of face PE band 2 can effectively prevent the phenomenon that cracking at clinch, than more may be used using by connecting PE band 2 with side It leans on；In the external sheath PE layer 32 of PP skeleton 31, since the matrix 1 of bellows is all using PE material, in the outer of PP skeleton 31 The setting of layer cladding PE layer 32 can be conducive to the connection of profile 3 Yu matrix 1；Profile 3 is wrapped in adjacent extrusion PE band 2 At clinch 21, the connection at clinch 21 can be made stronger, in the molten state, profile 3 and matrix 1 are mutually fused into one Integrally, due to bottom surface and 1 welding of matrix that profile 3 and matrix 1 are by profile 3, welding area is big, therefore 3 energy of profile can It is fixed on matrix 1 by ground, therefore bellows structure is stablized, ring stiffness is high.

Claims

1.PP cross-rib enhances PE helical bellows, including the matrix as made of PE band spiral winding and is helically wound Profile on matrix, it is characterised in that: the profile includes PP skeleton and PE layers, and PP skeleton includes PP cross-rib and is coated on The PP framework of PP cross-rib periphery, PE layers are coated in PP framework.

2. PP cross-rib according to claim 1 enhances PE helical bellows, it is characterised in that: PP framework cross section For polygon or semicircle.

3. PP cross-rib according to claim 1 enhances PE helical bellows, it is characterised in that: the profile is with spiral side Formula is wrapped at the interconnecting piece of adjacent PE band.

4. PP cross-rib according to claim 3 enhances PE helical bellows, it is characterised in that: the PE band, which has, to be taken Socket part, adjacent PE band are linked together by clinch, and the profile is helically wound taking in adjacent PE band At socket part.

5.PP cross-rib profile, it is characterised in that: including PP skeleton and PE layers, PP skeleton includes PP cross-rib and is coated on PP ten The PP framework of word muscle periphery, PE layers are coated in PP framework.

6. PP cross-rib profile according to claim 5, it is characterised in that: PP framework cross section is polygon or half It is round.