CN207975349U - A kind of novel double-wall bellows - Google Patents
A kind of novel double-wall bellows Download PDFInfo
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- CN207975349U CN207975349U CN201820057527.1U CN201820057527U CN207975349U CN 207975349 U CN207975349 U CN 207975349U CN 201820057527 U CN201820057527 U CN 201820057527U CN 207975349 U CN207975349 U CN 207975349U
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- wall
- wave crest
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- novel double
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a kind of novel double-wall bellows, include the outer wall of smooth inner wall and annular corrugated structure, outer wall includes wave crest section and trough section, and cavity structure is formed between wave crest section and inner wall, and the circumferencial direction of wave crest section is equipped with multiple axially extending grooves along outer wall.Groove provides radial supporting point for cavity structure, increases the ring stiffness of wave crest section, improves the bearing capacity of wave crest section, to strengthen the ring stiffness and bearing capacity of double-wall corrugated pipe on the whole.The groove of booster action has been arranged in the utility model on the outer wall, rather than in the reinforcement structure of wave crest intersegmental part setting circumferential ribs or reinforcing rib etc, reduce molding or the fusion bonding process of reinforcement structure when production, and without making wave crest section be positioned with reinforcement structure, facilitate production, improves production efficiency.
Description
Technical field
The utility model belongs to Bellows Technology field, and in particular to a kind of novel double-wall bellows.
Background technology
The structure that existing double-wall corrugated pipeline is interior walls be smooth, outer wall is corrugated shape, the trough section and inner wall of outer wall
Between by high temperature extrusion fusion be integrated, form cavity between wave crest section and inner wall, with formed part flexible connection to
Adapt to the ground potential condition to rise and fall.When special engineering middle ring rigidity requirement is higher, the wave crest section of the double-wall corrugated pipe of this structure
It is easy to be crushed, cannot be satisfied engine request.
Patent《A kind of plastic double-wall corrugated pipeline of band reinforcing rib in length and breadth》(application No. is CN201220412307.9), it is public
A kind of plastic double-wall corrugated pipeline of band reinforcing rib in length and breadth, the axial table in the wave crest section and/or trough section of ripple outer wall are opened
Face is equipped with transverse stiffener rib and radial circumference face is equipped with the longitudinal rein forcement intersected with transverse stiffener rib, makes the ring stiffness of entire pipeline
It greatly enhances, fully meets the needs of special engineering is high to plastic cement pipeline ring stiffness requirement.But reinforcing rib is set to outside ripple
The wave crest section of wall and/or the surface of trough section, destroy original surface texture of ripple outer wall, are unfavorable for counting when engineering design
It calculates, the caliber of selection bellows, while the reinforcing rib for protruding from ripple outer wall is not readily transportable and installs.
Patent《A kind of Enhanced type double-wall corrugated pipe》(application No. is CN201220202902.X) discloses a kind of reinforced
Double-wall corrugated pipe is provided with ring stiffener in the wave crest of undulatory outer wall.Due in the every of corrugated outer wall
It is provided with ring stiffener in a wave crest, the whole ring stiffness of tubing, anti-twist and anti-breaking force is made to be greatly improved.But
It is that ring stiffener is arranged inside wave crest, when production increases molding or the fusion bonding process of ring stiffener, and needs
So that wave crest section is accurately positioned with ring stiffener, otherwise can cause ring stiffener that cannot be covered by wave crest because deviation is accumulated
Lid, is not easy to produce, reduces production efficiency very much.
Utility model content
The purpose of this utility model is to provide a kind of novel double-wall bellows, and ring stiffness is high, and easy to produce, transport and
Installation.
The utility model provides the following technical solution：
A kind of novel double-wall bellows, includes the outer wall of smooth inner wall and annular corrugated structure, and outer wall includes wave crest
Section and trough section, form cavity structure between wave crest section and inner wall, the circumferencial direction of wave crest section is equipped with multiple axis along outer wall
To the groove of extension.
Preferably, further include steel screen layer, steel screen layer is set between inner wall and outer wall.
Preferably, the bottom of groove includes the first bottom wall and the second bottom wall from outside to inside, and the first bottom wall is located at trough section
In same level, the second bottom wall abuts steel screen layer.
Preferably, reinforcing rib is equipped in groove.
Preferably, multiple grooves press linear arrangement on the outer wall, and reinforcing rib is extended in the axial direction of outer wall with linear.
Preferably, the height of reinforcing rib is less than or equal to the height of wave crest section.
The utility model has the beneficial effects that：The groove of booster action has been set on the outer wall, rather than in wave crest section
The circumferential ribs of portion's setting either the reinforcement structure production of reinforcing rib etc when reduce the molding or welding of reinforcement structure
Process, and without making wave crest section be positioned with reinforcement structure, facilitate production, improve production efficiency；Since groove has radial direction
Support construction, therefore increase the ring stiffness of the utility model；Reinforcing rib is set in groove, further improves the ring of bellows
To rigidity, reinforcing rib is axially disposed in groove, without being disposed in the cavity structure of wave crest section, convenient for molding and detection
The forming quality of reinforcing rib.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic cross-sectional view of A-A in Fig. 1；
Fig. 3 is the enlarged diagram of part B in Fig. 2.
In figure label for：1. inner wall；21. wave crest section；211. groove；212. first bottom walls；213. second bottom walls；22. wave
Paddy section；3. steel screen layer；4. reinforcing rib.
Specific implementation mode
As shown in Figure 1 to Figure 3, a kind of novel double-wall bellows, including smooth inner wall 1 and annular corrugated structure are outer
Wall, outer wall include wave crest section 21 and trough section 22, and cavity structure, the circumference of wave crest section 21 are formed between wave crest section 21 and inner wall 1
Direction is equipped with multiple axially extending grooves 211 along outer wall.Groove 211 provides radial supporting point for cavity structure,
The ring stiffness for increasing wave crest section 21 improves the bearing capacity of wave crest section 21, to strengthen double-wall corrugated pipe on the whole
Ring stiffness and bearing capacity.
Preferably, further include steel screen layer 3, steel screen layer 3 is set between inner wall 1 and outer wall, is further improved double
The ring stiffness and bearing capacity of wall bellows.
Preferably, the bottom of groove 211 includes the first bottom wall 212 and the second bottom wall 213, the first bottom wall 212 from outside to inside
It is located in same level with trough section 22, the second bottom wall 213 abuts steel screen layer 3, to steel screen layer after 211 stress of groove
3 transmit pressure.
Preferably, reinforcing rib 4 is equipped in groove 211.Since the first bottom wall 212 is located at same level with trough section 22
On, so that reinforcing rib 4 is continuously provided on the first bottom wall 212 and trough section 22, centre increases reinforcing rib 4 without aerial section
Bonding strength.
Preferably, as shown in Figure 1, multiple grooves 211 are in line on the outer wall, shape arranges, axial direction of the reinforcing rib 4 in outer wall
On extended with linear, be conducive to the axial strength, the anti-twist and anti-breaking force that improve double-wall corrugated pipe, and it is easy to process.
Preferably, as shown in figure 3, the height of reinforcing rib 4 is less than or equal to the height of wave crest section 21, make reinforcing rib 4 not
Outer wall is protruded from, is readily transported and installs.
The production method of the double-wall corrugated pipe of the utility model is：Inner wall is squeezed out with A extruders, is squeezed out with B extruders
Outer wall；Then after inner and outer wall flows through same mold, the effect of the forming module equipped with convex structure on high temperature and wave crest
Under so that it is mutually fused together, double-wall corrugated pipe is formed after cooling and shaping, convex structure is correspondingly formed the groove on outer wall
211.For the double-wall corrugated pipe equipped with reinforcing rib 4, the forming module of one and 4 structure matching of reinforcing rib can be increased, and set
It is placed on C extruders, flows through same mold after inner wall, outer wall and reinforcing rib layer are squeezed out, mutually fuse together at high temperature,
The double-wall corrugated pipe with reinforcing rib is formed after cooling and shaping.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (6)
1. a kind of novel double-wall bellows, includes the outer wall of smooth inner wall and annular corrugated structure, the outer wall includes wave
Crest segment and trough section form cavity structure between the wave crest section and the inner wall, which is characterized in that the circumference of the wave crest section
Direction is equipped with multiple axially extending grooves along the outer wall.
2. novel double-wall bellows according to claim 1, which is characterized in that further include steel screen layer, the steel wire
Layer is set between the inner wall and the outer wall.
3. novel double-wall bellows according to claim 2, which is characterized in that the bottom of the groove includes from outside to inside
First bottom wall and the second bottom wall, first bottom wall are located at the trough section in same level, and second bottom wall abuts
State steel screen layer in residence.
4. novel double-wall bellows according to claim 1, which is characterized in that be equipped with reinforcing rib in the groove.
5. novel double-wall bellows according to claim 4, which is characterized in that multiple grooves are pressed on the outer wall
Linear array, the reinforcing rib are extended in the axial direction of the outer wall with linear.
6. novel double-wall bellows according to claim 4, which is characterized in that the height of the reinforcing rib is less than or waits
In the height of the wave crest section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820057527.1U CN207975349U (en) | 2018-01-12 | 2018-01-12 | A kind of novel double-wall bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820057527.1U CN207975349U (en) | 2018-01-12 | 2018-01-12 | A kind of novel double-wall bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975349U true CN207975349U (en) | 2018-10-16 |
Family
ID=63768950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820057527.1U Active CN207975349U (en) | 2018-01-12 | 2018-01-12 | A kind of novel double-wall bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975349U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654308A (en) * | 2019-01-25 | 2019-04-19 | 东南大学 | A kind of corrugated culvert with the enhancing of setback floor |
| CN112762247A (en) * | 2021-01-27 | 2021-05-07 | 广东永高塑业发展有限公司 | Outer impeller-shaped reinforced composite pipe |
| CN113431961A (en) * | 2021-05-24 | 2021-09-24 | 黄宝明 | Double-wall HDPE corrugated pipe with inner support reinforced framework |
-
2018
- 2018-01-12 CN CN201820057527.1U patent/CN207975349U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654308A (en) * | 2019-01-25 | 2019-04-19 | 东南大学 | A kind of corrugated culvert with the enhancing of setback floor |
| CN109654308B (en) * | 2019-01-25 | 2024-03-29 | 东南大学 | Corrugated pipe culvert with corrugated rib plate reinforcement |
| CN112762247A (en) * | 2021-01-27 | 2021-05-07 | 广东永高塑业发展有限公司 | Outer impeller-shaped reinforced composite pipe |
| CN113431961A (en) * | 2021-05-24 | 2021-09-24 | 黄宝明 | Double-wall HDPE corrugated pipe with inner support reinforced framework |
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