CN209115820U - Double-wall corrugated pipe connection and plastic double-walled corrugated pipe with flaring - Google Patents
Double-wall corrugated pipe connection and plastic double-walled corrugated pipe with flaring Download PDFInfo
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- CN209115820U CN209115820U CN201821765024.6U CN201821765024U CN209115820U CN 209115820 U CN209115820 U CN 209115820U CN 201821765024 U CN201821765024 U CN 201821765024U CN 209115820 U CN209115820 U CN 209115820U
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- corrugated pipe
- flaring
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- wall corrugated
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Abstract
The utility model discloses a kind of plastic double-walled corrugated pipe with flaring and double-wall corrugated pipe connections, plastic double-walled corrugated pipe with flaring includes double-wall corrugated pipe main body and the flaring for being integrally formed at double-wall corrugated pipe main body one end, double-wall corrugated pipe main body, flaring, double-wall corrugated pipe undertaking body include inner and outer wall, double-wall corrugated pipe main body, double-wall corrugated pipe undertaking body outer wall be equipped with wave crest and trough；Flaring includes changeover portion and inserting section, one end of changeover portion is connect with double-wall corrugated pipe main body, the other end of changeover portion is connect with inserting section, double-wall corrugated pipe undertaking body and inserting section grafting, inserting section is provided with eccentric segment close to the free end of flaring, the caliber of eccentric segment is equal to the caliber of inserting section, and eccentric segment is connect with inserting section rounding off, and eccentric segment has to the interior protuberance of convex and the male part of convex.The utility model has the advantages that easy to install, anti-disconnection, and is flared after installing not easy to crack.
Description
Technical field
The utility model belongs to plastic pipe technical field, and in particular to a kind of HDPE plastic with flaring is double-wall corrugated
Pipe and double-wall corrugated pipe connection.
Background technique
HDPE full name in English: " High Density Polyethylene ", Chinese is high density polyethylene (HDPE), is one
Kind of crystallinity is high, nonpolar thermoplastic resin, is that plastic tube made of raw material has that connection is reliable, low temperature impact HDPE
Hitting property is good, anti-stress cracking is good, chemical corrosion resistance is good, ageing-resistant performance is good, wearability is good, good toughness, high pressure resistant and make
With the service life it is long the advantages that.The HDPE plastic pipe tubing traditional with coating steel pipe etc. with cast iron pipe is compared, and has light-weight, corrosion resistant
Erosion, small flow resistance is energy saving, and simple installation is rapid, and the more low significant advantage of cost receives the happiness of pipeline engineering circle
Love, and gradually replace traditional piping material.
Common connection type between plastic pipe has: clamping hoop type, hot melten type, online single layer flared type, above-mentioned connection
Mode has the following deficiencies:
1, clamping hoop type connection is the pipeline connected will to be needed to be connected together using clip, although the stability of clamp connection
And good airproof performance, but the single parts price of clip is higher.
2, hot melten type connection is with hot-melting tool that outer pipe wall surface and the pipe fitting inner wall surface with taper internal diameter is same
When be heated to molten condition, then according to the socket joint depth of regulation, tubing is squeezed into inside pipe fitting, forms interference pressure difference, is generated
Pressure of seam, so that being closed tubing and pipe fitting becomes an entirety.Although hot melten type connection has high fusion compactness and strong
Degree, connection protection is high, but attended operation is more complicated, and construction efficiency is low.
3, the flaring of online single layer flaring and pipeline are integrally formed, and production cost is relatively low, but single layer is flared wall thickness
Thin, intensity is low, is easily deformed, or even scraps.
Also there are the plastic double-walled corrugated pipe with flaring that fraction integrally produces online, but existing band currently on the market
There is the plastic double-walled corrugated pipe of flaring in grafting tubing, it is not easy to install, and be easy to appear tubing after grafting combination and disconnect, is close
The problems such as the problem of seal falls off and flaring cracking, to prevent, flaring and tubing disconnect some, flaring is cracked, it is also necessary to be flared
It is circumferential install fastener additional, cause link cost to increase.
Utility model content
First technical problem to be solved in the utility model is to provide a kind of plastic double-walled corrugated pipe double-layer flaring tool
There is the advantages of easy to install, anti-disconnection, and be flared not easy to crack after installing, without increasing fastener, reduces link cost.
As the same technical concept, second technical problem to be solved in the utility model is to provide a kind of double-walled wave
Bellows joint device.
In order to solve the first technical problem mentioned above, the utility model takes following technical scheme:
Plastic double-walled corrugated pipe with flaring, comprising: double-wall corrugated pipe main body and be integrally formed at it is described double-wall corrugated
The flaring of pipe main body one end, the double-wall corrugated pipe main body, the flaring include inner and outer wall, the double-wall corrugated pipe master
The outer wall of body is equipped with wave crest and trough, and the flaring includes changeover portion and inserting section, one end of the changeover portion and the double-walled
The connection of bellows main body, the other end of the changeover portion are connect with the inserting section；
The inserting section is provided with eccentric segment close to the free end of the flaring, and the caliber of the eccentric segment is equal to described insert
The caliber of section is connect, the eccentric segment connect the interior protuberance and convex to be formed with to convex with the inserting section rounding off
Male part.
Preferably, the outer surface of the flaring outer wall is equipped with the reinforcing rib of annular.
Preferably, the changeover portion is set as taper type, and frustum osculum end is connect with the double-wall corrugated pipe main body, frustum
Big opening end is connect with the inserting section.
To solve above-mentioned second technical problem, the utility model takes following technical scheme:
Double-wall corrugated pipe connection, including double-wall corrugated pipe undertaking body and with the plastic double-walled corrugated pipe of flaring, institute
The plastic double-walled corrugated pipe with flaring is stated to include double-wall corrugated pipe main body and be integrally formed at the double-wall corrugated pipe main body one
The flaring at end, the double-wall corrugated pipe main body, the flaring, the double-wall corrugated pipe undertaking body include inner and outer wall, institute
State double-wall corrugated pipe main body, the outer wall of the double-wall corrugated pipe undertaking body is equipped with wave crest and trough；The flaring includes transition
Section and inserting section, one end of the changeover portion connect with the double-wall corrugated pipe main body, the other end of the changeover portion with it is described
Inserting section connection, the double-wall corrugated pipe undertaking body and the inserting section grafting；
The inserting section is provided with eccentric segment close to the free end of the flaring, and the caliber of the eccentric segment is equal to described insert
Connect the caliber of section, the eccentric segment is connect with the inserting section rounding off, the eccentric segment have to convex interior protuberance and
The male part of convex；The eccentric segment relative to the inserting section eccentricity be less than or equal to the inserting section internal diameter with
Outer diameter at the double-wall corrugated pipe undertaking body wave crest is poor；
Sealing ring is equipped between the inner surface of the inserting section inner wall and the outer wall trough of the double-wall corrugated pipe undertaking body.
Compared with prior art, the utility model has the beneficial effects that
The free end of flaring is provided with eccentric segment in inserting section, eccentric segment connect to form tool with inserting section rounding off
The interior protuberance of oriented convex and the male part of convex, outside protrusion are being inserted into the double-wall corrugated pipe undertaking body for being cased with sealing ring
Be easily accessible when flaring, and double-wall corrugated pipe undertaking body insertion flaring after, to interior protuberance again can prevent be inserted into sealing ring from
Abjection in flaring, and then the disconnection of 2-section pipe material is prevented, connection reliably no longer needs to increase fastener in flaring periphery, is guaranteeing to apply
Cost is reduced while working medium amount.
In addition, the flaring of the plastic double-walled corrugated pipe with flaring is made of inner and outer wall, double-layer structure makes to be flared
Wall thickness thicken, intensity increase, be flared outer wall outer surface be equipped with annular reinforcing rib prevent flaring with double-wall corrugated pipe accept
It cracks after body grafting.
In conclusion the double-wall corrugated pipe connection of the utility model and plastic double-walled corrugated pipe and tool with flaring
There is the advantages of easy to install, anti-disconnection, and be flared not easy to crack after installing, without increasing fastener, reduces link cost.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this plastic double-walled corrugated pipe with flaring；
Fig. 2 is the schematic cross-sectional view in Fig. 1 at A-A；
Fig. 3 is the schematic diagram of double-wall corrugated pipe undertaking body and the plastic double-walled corrugated pipe grafting with flaring (big flaring)；
Fig. 4 is the schematic diagram of double-wall corrugated pipe undertaking body and the plastic double-walled corrugated pipe grafting with flaring (small flaring)；
In figure: a- inner wall, b- outer wall, 1- double-wall corrugated pipe main body, 2- flaring, 21- changeover portion, 22- inserting section, 23- are inclined
Heart section, 231- interior protuberance, 232- male part, 24- ring stiffener, δ-eccentricity, the internal diameter and double-wall corrugated pipe of m- inserting section
Outer diameter at undertaking body wave crest is poor, 3- double-wall corrugated pipe undertaking body, 31- wave crest, 32- trough, 4- sealing ring, 5- double-wall corrugated pipe
Undertaking body, 51- wave crest, 52- trough, 53- wave crest, the T- pitch of waves, the T1- pitch of waves.
Specific embodiment
Technical solutions of the utility model are described in detail in the following with reference to the drawings and specific embodiments, with further
Understand the purpose of this utility model, scheme and effect, but is not intended as the limit of the appended claims for the utility model protection scope
System.
As Fig. 1 and Fig. 2 jointly shown in, the plastic double-walled corrugated pipe with flaring include: double-wall corrugated pipe main body 1 and one
It is set to the flaring 2 of 1 one end of double-wall corrugated pipe main body, double-wall corrugated pipe main body 1, flaring 2 include inner wall a and outer wall b, double-walled
The outer wall b of bellows main body 1 is equipped with wave crest and trough, and flaring 2 includes 21 sections of transition and inserting section 22, one end of changeover portion 21 with
Double-wall corrugated pipe main body 1 connects, and the other end of changeover portion 21 is connect with inserting section 22.Inserting section 22 is close to the free end of flaring 2
It is provided with eccentric segment 23, the caliber of eccentric segment 23 is equal to the caliber of inserting section 22, and eccentric segment 23 and 22 rounding off of inserting section connect
Connecing to be formed has to the interior protuberance 231 of convex and the male part 232 of convex.
It is by reducing molding machine production in manufacture flaring 2 during plastic double-walled corrugated pipe of the production with flaring
Speed, or increase the extrusion output of extruder, make the meter Chong great of inner wall pipe, outer wall pipe when producing double-wall corrugated pipe main body
Meter Chong, achieve the effect that increase flaring 2 wall thickness.To further strengthen the ring stiffness for being flared 2, in the outer surface for being flared 2 outer walls
Reinforcing rib 24 equipped with annular.Flaring and double-walled can be effectively prevented in the reinforcing rib 24 that the outer surface for being flared 2 outer walls sets annular
It cracks after bellows undertaking body grafting.
Changeover portion 21 is set as taper type, and frustum osculum end is connect with double-wall corrugated pipe main body 1, frustum big opening end and grafting
Section 22 connects, and since double-wall corrugated pipe main body 1 and flaring 2 are integrally formed, changeover portion 21 plays good transition connection function,
So that the whole uniform wall thickness of tube body, avoids flaring 2 from concentrating and frangibility with 1 intersection stress of double-wall corrugated pipe main body.
Double-wall corrugated pipe connection, including double-wall corrugated pipe undertaking body and the above-mentioned plastic double-wall ripple with flaring
Pipe, as shown in figure 3, the schematic diagram of double-wall corrugated pipe undertaking body 3 and the plastic double-walled corrugated pipe grafting with flaring (big flaring),
Double-wall corrugated pipe main body 1, flaring 2 and double-wall corrugated pipe undertaking body 3 include inner wall a and outer wall b, double-wall corrugated pipe main body 1, double
The outer wall of wall bellows undertaking body 3 is equipped with wave crest 31 and trough 32, and flaring 2 includes changeover portion 21 and inserting section 22, changeover portion
21 one end is connect with double-wall corrugated pipe main body 1, and the other end of changeover portion 21 is connect with inserting section 22, double-wall corrugated pipe undertaking body
3 with 22 grafting of inserting section.Inserting section 22 is provided with eccentric segment 23 close to the free end of flaring 2, and the caliber of eccentric segment 23, which is equal to, to be inserted
Connect the caliber of section 22, eccentric segment 23 is connect with 22 rounding off of inserting section, eccentric segment 23 have to convex interior protuberance 231 and to
The male part 232 of evagination；Eccentric segment 23 is less than or equal to the internal diameter and double-walled of inserting section 22 relative to the eccentricity δ of inserting section 22
31 outer diameter difference m at 3 wave crest of bellows undertaking body.Prevent the eccentricity of eccentric segment 22 because it is excessive when, double-wall corrugated pipe undertaking body 3
When can not be inserted into, while the bias of eccentric segment 22 need to be avoided too small, anti-off effect is not had.
Sealing ring 4 is equipped between the inner surface of 22 inner wall of inserting section and the outer wall trough 32 of double-wall corrugated pipe undertaking body 3.
Eccentric segment 23 is easily accessible double-wall corrugated pipe undertaking body when being inserted into flaring, and double-wall corrugated pipe undertaking body
After insertion flaring, the disconnection of 2-section pipe material is prevented.Concrete principle is as follows:
Double-wall corrugated pipe undertaking body 3 is set at the trough 32 of 3 outer wall b of double-wall corrugated pipe undertaking body before insertion flaring 2
There is sealing ring 4, at the insertion of double-wall corrugated pipe undertaking body 3 flaring 2, sealing ring 4 proceeds to partially in double-wall corrugated pipe undertaking body 3
When at heart section 23, the male part 232 of convex makes sealing ring 4 be easy to pass through.When the insertion of double-wall corrugated pipe undertaking body 3 flaring 2
Afterwards, it if applying pulling force in the axial direction of pipeline or having the power being rotated about axis, is flared even if double-wall corrugated pipe undertaking body 3 is opposite
2 retreat a part, when double-wall corrugated pipe undertaking body 3 retreats at eccentric pipe 23 with sealing ring 4, to convex interior protuberance 231 again
Energy baffle seal circle 4 continues to retreat, to prevent the abjection out of flaring of sealing ring 4, and then prevents double-wall corrugated with what is be flared
The disconnection of pipe and double-wall corrugated pipe undertaking body 2-section pipe material, connection is reliable, no longer needs to increase fastener in 2 peripheries of flaring, protect
Cost is reduced while demonstrate,proving construction quality.
In addition, the utility model uses easily disassembled maintenance when connecting tubing of the plastic double-walled corrugated pipe with flaring.When
When needing to dismantle, junction portion need to be only lifted first for the axial pulling of double-wall corrugated pipe undertaking body 3, then accepts double-wall corrugated pipe
Body 3 break downwards (sealing ring 4 at 3 trough of double-wall corrugated pipe undertaking body arrived after eccentric segment 23 can be prevented from continuing it is outer de-, thus
Apply downward power, undertaking body 3 can be made to cross the blocking of eccentric segment 23 with dynamic seal ring 4), thus by double-wall corrugated pipe undertaking body
3 successfully remove from flaring.
The double-wall corrugated pipe that can be also used for connection customization when being flared 2 size reduction, as shown in figure 4, double-wall corrugated
The schematic diagram of pipe undertaking body and the plastic double-walled corrugated pipe grafting with flaring (small flaring), the double-wall corrugated pipe with flaring
Structure is basically unchanged, the size reduction at flaring 2, but double-wall corrugated pipe undertaking body 5 be flared 2 wave crests 51 of linkage section connecting
Height it is different with the height of wave crest 53 of its main paragraph, the pitch of waves of adjacent peaks (or trough) is also unequal, double-walled wave
The pitch of waves that line pipe accepts the main part of tube body 5 is T, and the pitch of waves of tube body 5 is accepted with the double-wall corrugated pipe of 2 coupling parts of flaring
For T1.
The utility model is not limited to the above embodiment, all design, principle, structure and sides based on the utility model
Method, the various improvement made, is within the protection scope of the utility model.
Claims (4)
1. a kind of plastic double-walled corrugated pipe with flaring, comprising: double-wall corrugated pipe main body and be integrally formed at the double-walled wave
The flaring of line pipe main body one end, the double-wall corrugated pipe main body, the flaring include inner and outer wall, the double-wall corrugated pipe
The outer wall of main body is equipped with wave crest and trough, and the flaring includes changeover portion and inserting section, one end of the changeover portion and described double
The connection of wall bellows main body, the other end of the changeover portion are connect with the inserting section；It is characterized in that,
The inserting section is provided with eccentric segment close to the free end of the flaring, and the caliber of the eccentric segment is equal to the inserting section
Caliber, the eccentric segment, which connect to be formed with the inserting section rounding off, to be had to the interior protuberance of convex and the evagination of convex
Portion.
2. the plastic double-walled corrugated pipe as described in claim 1 with flaring, which is characterized in that the appearance of the flaring outer wall
Face is equipped with the reinforcing rib of annular.
3. the plastic double-walled corrugated pipe as described in claim 1 with flaring, which is characterized in that the changeover portion is set as boring
Platform shape, frustum osculum end are connect with the double-wall corrugated pipe main body, and frustum big opening end is connect with the inserting section.
4. double-wall corrugated pipe connection, described including double-wall corrugated pipe undertaking body and with the plastic double-walled corrugated pipe of flaring
Plastic double-walled corrugated pipe with flaring includes double-wall corrugated pipe main body and is integrally formed at double-wall corrugated pipe main body one end
Flaring, the double-wall corrugated pipe main body, it is described flaring, the double-wall corrugated pipe undertaking body include inner and outer wall, it is described
Double-wall corrugated pipe main body, the double-wall corrugated pipe undertaking body outer wall be equipped with wave crest and trough；The flaring includes changeover portion
And inserting section, one end of the changeover portion are connect with the double-wall corrugated pipe main body, the other end of the changeover portion is inserted with described
Connect section connection, the double-wall corrugated pipe undertaking body and the inserting section grafting；It is characterized in that,
The inserting section is provided with eccentric segment close to the free end of the flaring, and the caliber of the eccentric segment is equal to the inserting section
Caliber, the eccentric segment connect with the inserting section rounding off, and the eccentric segment has the interior protuberance and outward to convex
Convex male part；The eccentric segment relative to the inserting section eccentricity be less than or equal to the inserting section internal diameter with it is described
Outer diameter at double-wall corrugated pipe undertaking body wave crest is poor；
Sealing ring is equipped between the inner surface of the inserting section inner wall and the outer wall trough of the double-wall corrugated pipe undertaking body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821765024.6U CN209115820U (en) | 2018-10-29 | 2018-10-29 | Double-wall corrugated pipe connection and plastic double-walled corrugated pipe with flaring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821765024.6U CN209115820U (en) | 2018-10-29 | 2018-10-29 | Double-wall corrugated pipe connection and plastic double-walled corrugated pipe with flaring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115820U true CN209115820U (en) | 2019-07-16 |
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ID=67202834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821765024.6U Active CN209115820U (en) | 2018-10-29 | 2018-10-29 | Double-wall corrugated pipe connection and plastic double-walled corrugated pipe with flaring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719112A (en) * | 2022-03-31 | 2022-07-08 | 公元股份有限公司 | Bellmouth structure of corrugated pipe |
| CN115521531A (en) * | 2021-06-24 | 2022-12-27 | 江西蕴德新材料有限公司 | Modified corrugated pipe, corrugated pipe production method and corrugated pipe structure |
-
2018
- 2018-10-29 CN CN201821765024.6U patent/CN209115820U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521531A (en) * | 2021-06-24 | 2022-12-27 | 江西蕴德新材料有限公司 | Modified corrugated pipe, corrugated pipe production method and corrugated pipe structure |
| CN115521531B (en) * | 2021-06-24 | 2024-05-24 | 江西蕴德新材料有限公司 | Modified corrugated pipe, corrugated pipe production method and corrugated pipe structure |
| CN114719112A (en) * | 2022-03-31 | 2022-07-08 | 公元股份有限公司 | Bellmouth structure of corrugated pipe |
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