SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is to the problem that exists among the background art, provides a double-deck double bellows structure of MUPO that effectively improves structural strength and buries stability underground.
The technical scheme of the utility model is a MUPO double-layer double-wave tube structure, which comprises an inner tube and an outer tube;
the inner pipe and the outer pipe are of rotary structures, the outer pipe is coaxially arranged on the peripheral surface of the inner pipe and is wavy, the outer pipe is provided with a plurality of crest portions and a plurality of wave valley portions a, the crest portions are provided with wave valley portions b, and the wave valley portions b are circular.
Preferably, the inner diameter of the inner tube ranges from 195mm to 985mm, the outer diameter of the outer tube ranges from 219mm to 1141mm, and the inner diameter of the inner tube 1 is smaller than the outer diameter of the outer tube 2.
Preferably, the width of the wave crest part ranges from 18.60mm to 70.50mm, the distance between two adjacent wave crest parts ranges from 28.73mm to 114.93mm, and the width of the wave trough part a ranges from 6.50mm to 24.00 mm.
Preferably, the edges of the crest and trough portions a are provided with chamfers.
Preferably, the outer edge of the wave trough part a is U-shaped along the profile of the axial section.
Preferably, the outer edge of the outline of the wave trough part b along the axial section is in a convex shape with an outer end opening, and the inner end width of the wave trough part b is larger than the outer end width.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses a set up wave trough portion b on wave peak portion, trough portion an and the crest portion, form double-deck ripple structure for the structural strength of whole tubular product is effectively improved. When burying underground, earth is filled in trough a and trough b, and the pipeline is difficult for taking place deformation or offset, and stability is strong.
Detailed Description
Example one
As shown in fig. 1-2, the MUPO double-layered double-bellows structure proposed by the present invention is made of a nano-modified polyolefin composite Material (MUPO), and comprises an inner bellows 1 and an outer bellows 2; the inner tube 1 and the outer tube 2 are both of a rotary structure, the outer tube 2 is coaxially arranged on the outer peripheral surface of the inner tube 1, the outer tube 2 is in a wave shape, the outer tube 2 is provided with a plurality of crest portions 21 and a plurality of trough portions a22, the crest portions 21 are provided with trough portions b211, and the trough portions b211 are in a ring shape.
Example two
As shown in fig. 1-2, the present invention provides a MUPO double-layer dual-wave tube structure, the difference between the present embodiment and the first embodiment is that the edges of the crest portion 21 and the trough portion a22 are all provided with chamfers, so that the structure edges transition smoothly.
EXAMPLE III
The utility model provides a pair of MUPO double-deck double-wave tube structure compares in embodiment one, in this embodiment, trough a22 is "U" shape along axial cross-section's profile outward flange, and trough b211 is outer end open-ended "protruding" shape along axial cross-section's profile outward flange, and the inner width of trough b211 is greater than the outer end width, and to the mould that is used for producing double-deck double-wave tube structure, the mould is "protruding" shape in the fashioned position that is used for trough b211, is convenient for use milling cutter processing. When the pipeline is buried, soil is filled in the wave trough parts a22 and the wave trough parts b211, so that the pipeline is limited, and the pipeline is prevented from being displaced.
Example four
The utility model provides a pair of MUPO double-deck double-wave tube structure compares in embodiment one, and in this embodiment, 1 internal diameter of inner tube is less than 2 external diameters of outer tube, and 1 internal diameter of inner tube and 2 external diameter of outer tube of the double-deck double-wave tube of each model MUPO correspond to and are:
type 1: the inner diameter of the inner tube 1 is 195mm, the outer diameter of the outer tube 2 is 219mm, the width of the crest portion 21 is 19.10mm, the distance between two adjacent crest portions 21 (wave pitch) is 28.73mm, and the width of the trough portion a22 is 7 mm.
The model 2: the inner diameter of the inner tube 1 is 294mm, the outer diameter of the outer tube 2 is 332mm, the width of the crest portions 21 is 28.9mm, the distance between two adjacent crest portions 21 (wave pitch) is 43.1mm, and the width of the trough portion a22 is 10 mm.
Type 3: the inner diameter of the inner tube 1 is 392mm, the outer diameter of the outer tube 2 is 442mm, the width of the crest portion 21 is 39.8mm, the distance between two adjacent crest portions 21 (wave pitch) is 57.5mm, and the width of the trough portion a22 is 12 mm.
And model 4: the inner diameter of the inner tube 1 is 490mm, the outer diameter of the outer tube 2 is 552mm, the width of the crest 21 is 48.1mm, the distance between two adjacent crest 21 (wave pitch) is 69mm, and the width of the trough a22 is 14 mm.
Type 5: the inner diameter of the inner tube 1 is 588mm, the outer diameter of the outer tube 2 is 670mm, the width of the crest part 21 is 56.2mm, the distance (wave distance) between two adjacent crest parts 21 is 86.2mm, and the width of the trough part a22 is 20 mm.
Model 6: the inner diameter of the inner tube 1 is 195mm, the outer diameter of the outer tube 2 is 225mm, the width of the crest portion 21 is 18.6mm, the distance between two adjacent crest portions 21 (wave distance) is 28.73mm, and the width of the trough portion a22 is 6.50 mm.
And model 7: the inner diameter of the inner tube 1 is 294mm, the outer diameter of the outer tube 2 is 341mm, the width of the crest portion 21 is 25.1mm, the distance between two adjacent crest portions 21 (wave pitch) is 43.1mm, and the width of the trough portion a22 is 12 mm.
Model 8: the inner diameter of the inner tube 1 is 392mm, the outer diameter of the outer tube 2 is 456mm, the width of the crest 21 is 37.8mm, the distance between two adjacent crest 21 (wave distance) is 57.47mm, and the width of the trough a22 is 12 mm.
Type 9: the inner diameter of the inner tube 1 is 490mm, the outer diameter of the outer tube 2 is 572mm, the width of the crest 21 is 43.9mm, the distance between two adjacent crest 21 (wave pitch) is 68.96mm, and the width of the trough a22 is 15 mm.
The model number 10: the inner diameter of the inner tube 1 is 588mm, the outer diameter of the outer tube 2 is 686mm, the width of the crest part 21 is 55.6mm, the distance (wave distance) between two adjacent crest parts 21 is 86.2mm, and the width of the wave trough part a22 mm is 18 mm.
Model 11: the inner diameter of the inner pipe 1 is 785mm, the outer diameter of the outer pipe 2 is 919mm, the width of the crest portion 21 is 67.3mm, the distance (wave distance) between two adjacent crest portions 21 is 114.93mm, and the width of the crest portion a22 is 24.00 mm.
The model 12: the inner diameter of the inner pipe 1 is 985mm, the outer diameter of the outer pipe 2 is 1141mm, the width of the crest part 21 is 70.5mm, the distance (wave distance) between two adjacent crest parts 21 is 114.93mm, and the width of the crest part a22 is 24.00 mm.
The utility model discloses in, the double-deck double-corrugated pipe structure of MUPO of various models all has good structural performance, through wave crest portion 21, wave trough portion a22 and the wave trough portion b211 on the wave crest portion 21 of setting up, forms double-deck ripple structure for the structural strength of whole tubular product is effectively improved. When buried underground, the soil is filled in wave trough portion a22 and wave trough portion b211, and the pipeline is difficult for taking place deformation or offset, and stability is strong.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.