CN204962079U - PVC double -walled bellows - Google Patents
PVC double -walled bellows Download PDFInfo
- Publication number
- CN204962079U CN204962079U CN201520754089.0U CN201520754089U CN204962079U CN 204962079 U CN204962079 U CN 204962079U CN 201520754089 U CN201520754089 U CN 201520754089U CN 204962079 U CN204962079 U CN 204962079U
- Authority
- CN
- China
- Prior art keywords
- straight tube
- internal layer
- double
- bellows
- inlayer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Diaphragms And Bellows (AREA)
Abstract
The utility model discloses a PVC double -walled bellows, including inlayer straight tube and outer bellows, outer bellows is the heliciform and sets up outside the inlayer straight tube, is provided with complex heliciform steel band with it in the outer bellows, and the cross -section of steel band is M shape, and is gapped between two adjacent steel bands to the width in clearance is less than the width on the vice limit of shaping steel band, outer bellows is provided with the wearing layer outward, and the wearing layer is provided with sun -proof layer outward, the right -hand member of the inlayer straight tube outside is equipped with the U -shaped draw -in groove more than two, and the right -hand member inboard of inlayer straight tube is equipped with the annular groove, and inlayer straight tube left end is equipped with the buckle with U -shaped draw -in groove complex triangle -shaped, the left end inboard of inlayer straight tube be equipped with with annular groove complex bulge loop. This novel structural design is reasonable, and it is convenient to connect, few power that saves time, and can play the sealed effect that prevents water, rigidity and intensity are high, can carry out appropriate crooked construction, have sun -proof, anticorrosive and wear -resisting function, it is not fragile, ageing resistance, long service life.
Description
Technical field
The utility model relates to a kind of Bellows Technology field, specifically a kind of Double-wall PVC bellows.
Background technique
Double-wall corrugated pipe is not only applied in buried draining, drainage pipeline aspect; in other different fields, application is also more and more extensive; as cable protection double-wall corrugated pipe, field irrigation or water drainage double-wall corrugated pipe, the double-wall corrugated pipe of old urban area gaspipe network transformation and subway ventilation, mine ventilation double-wall corrugated pipe etc.; but present double-wall corrugated pipe structural rigidity is poor; poor toughness, connect difficulty large, link cost is high; easily aging, be easily corroded.
Model utility content
The purpose of this utility model is to provide a kind of Double-wall PVC bellows, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
A kind of Double-wall PVC bellows, comprise internal layer straight tube and outer bellows, described outer bellows is arranged at outside internal layer straight tube in the shape of a spiral, the helical steel band coordinated with it is provided with in described outer bellows, the cross section of described steel band is M shape, have gap between adjacent two steel bands, and the width in gap is less than the width of the secondary of shaped-steel strip; Described outer bellows is outside equipped with wearing layer, and described wearing layer is outside equipped with sun-proof layer; Plural U-shaped draw-in groove is provided with outside the right-hand member of described internal layer straight tube, the opening of described U-shaped draw-in groove be provided with inside inclination card point, annular groove is provided with inside the right-hand member of described internal layer straight tube, described internal layer straight tube left end is provided with the triangle buckle coordinated with U-shaped draw-in groove, is provided with the bulge loop coordinated with annular groove inside the left end of described internal layer straight tube; The inwall of described internal layer straight tube is provided with anticorrosive coat.
As further program of the utility model: the top of described steel band adopts arc transition structure, and the edge of described secondary has rounded feature.
As the utility model further scheme: described wearing layer is that polyurethane elastomer is made.
As the utility model further scheme: described sun-proof layer is that reflective fiber is made, and the mode that described sun-proof layer is pasted by adhesive is attached on wearing layer.
As the utility model further scheme: described anticorrosive coat is that silica gel matter lubricating grease is made.
As the utility model further scheme: be provided with seal ring in described annular groove.
Compared with prior art, the beneficial effects of the utility model are: arrange U-shaped draw-in groove and triangle buckle, facilitate the connection between body, save time few power, and coordinating of annular groove and bulge loop, be provided with seal ring in described groove, therefore can play sealing, prevent the effect of leaking; The cross section of steel band adopts M type, and compared with the U-shaped design adopted with traditional scheme, Rigidity and strength is higher; Have gap in vain between adjacent two steel bands, and clearance distance is less than the secondary width of steel band, this structure does not affect the bulk strength of outer bellows, can carry out suitable bending construction according to the needs of certain applications simultaneously; In addition, the secondary of steel band adopts rounded feature, can prevent body in BENDING PROCESS due to steel band secondary with sharp edges damage outer bellows, increase the service life; Sun-proof layer can prevent the outer bellows of direct sunlight, effectively delays the aging of outer bellows, increases the service life; Anticorrosive coat is set, utilizes silica gel matter fat to completely cut off the inner side of internal layer straight tube, prevent the inner side of internal layer straight tube from directly contacting with conveying water or air, avoid internal layer straight tube to be corroded, improve working life; Wearing layer is set to increase the wear resistance of outer bellows.
In sum, this new structural design is reasonable, and easy to connect, save time few power, and can play the effect sealing and prevent from leaking; Rigidity and strength is high, can carry out suitable bending construction; There is sun-proof, anticorrosion and wear-resisting functions, not fragile, anti-aging, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of Double-wall PVC bellows.
Fig. 2 is the partial enlarged drawing at A place in Double-wall PVC bellows.
In figure: 1-internal layer straight tube, the outer bellows of 2-, 21-steel band, 22-secondary, 23-wearing layer, the sun-proof layer of 24-, 3-triangle buckle, 4-U shape draw-in groove, 5-card point, 6-bulge loop, 7-groove, 8-anticorrosive coat.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-2, a kind of Double-wall PVC bellows, comprise internal layer straight tube 1 and outer bellows 2, described outer bellows 2 is arranged at outside internal layer straight tube 1 in the shape of a spiral, the helical steel band 21 coordinated with it is provided with in described outer bellows 2, the cross section of described steel band 21 is M shape, have gap, and the width in gap is less than the width of the secondary 22 of shaped-steel strip 21 between adjacent two steel bands 21; Described outer bellows 2 is outside equipped with wearing layer 23, and described wearing layer 23 is outside equipped with sun-proof layer 24; Plural U-shaped draw-in groove 4 is provided with outside the right-hand member of described internal layer straight tube 1, the opening of described U-shaped draw-in groove 4 be provided with inside inclination card point 5, annular groove 7 is provided with inside the right-hand member of described internal layer straight tube 1, described internal layer straight tube 1 left end is provided with the triangle buckle 3 coordinated with U-shaped draw-in groove 4, is provided with the bulge loop 6 coordinated with annular groove 7 inside the left end of described internal layer straight tube 1; The inwall of described internal layer straight tube 1 is provided with anticorrosive coat 8.
Working principle of the present utility model is: arrange U-shaped draw-in groove 4 and triangle buckle 3, facilitate the connection between body, and save time few power, and annular groove 7 coordinates with bulge loop 6, be provided with seal ring in described groove 7, therefore can play sealing, prevent the effect of leaking; The cross section of steel band 21 adopts M type, and compared with the U-shaped design adopted with traditional scheme, Rigidity and strength is higher; Have gap in vain between adjacent two steel bands 21, and clearance distance is less than secondary 22 width of steel band 21, this structure does not affect the bulk strength of outer bellows 2, can carry out suitable bending construction according to the needs of certain applications simultaneously; In addition, the secondary 22 of steel band 21 adopts rounded feature, can prevent body in BENDING PROCESS due to steel band 21 secondary 22 with sharp edges damage outer bellows 2, increase the service life; Sun-proof layer 24 can prevent the outer bellows 2 of direct sunlight, effectively delays the aging of outer bellows 2, increases the service life; Anticorrosive coat 8 is set, utilizes silica gel matter fat to completely cut off the inner side of internal layer straight tube 1, prevent the inner side of internal layer straight tube 1 from directly contacting with conveying water or air, avoid internal layer straight tube 1 to be corroded, improve working life; Wearing layer 23 is set to increase the wear resistance of outer bellows 2.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (6)
1. a Double-wall PVC bellows, comprise internal layer straight tube and outer bellows, it is characterized in that, described outer bellows is arranged at outside internal layer straight tube in the shape of a spiral, the helical steel band coordinated with it is provided with in described outer bellows, the cross section of described steel band is M shape, have gap, and the width in gap is less than the width of the secondary of shaped-steel strip between adjacent two steel bands; Described outer bellows is outside equipped with wearing layer, and described wearing layer is outside equipped with sun-proof layer; Plural U-shaped draw-in groove is provided with outside the right-hand member of described internal layer straight tube, the opening of described U-shaped draw-in groove be provided with inside inclination card point, annular groove is provided with inside the right-hand member of described internal layer straight tube, described internal layer straight tube left end is provided with the triangle buckle coordinated with U-shaped draw-in groove, is provided with the bulge loop coordinated with annular groove inside the left end of described internal layer straight tube; The inwall of described internal layer straight tube is provided with anticorrosive coat.
2. Double-wall PVC bellows according to claim 1, is characterized in that, the top of described steel band adopts arc transition structure, and the edge of described secondary has rounded feature.
3. Double-wall PVC bellows according to claim 1, is characterized in that, described wearing layer is that polyurethane elastomer is made.
4. Double-wall PVC bellows according to claim 1, is characterized in that, described sun-proof layer is that reflective fiber is made, and the mode that described sun-proof layer is pasted by adhesive is attached on wearing layer.
5. Double-wall PVC bellows according to claim 1, is characterized in that, described anticorrosive coat is that silica gel matter lubricating grease is made.
6. Double-wall PVC bellows according to claim 1, is characterized in that, is provided with seal ring in described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754089.0U CN204962079U (en) | 2015-09-25 | 2015-09-25 | PVC double -walled bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754089.0U CN204962079U (en) | 2015-09-25 | 2015-09-25 | PVC double -walled bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204962079U true CN204962079U (en) | 2016-01-13 |
Family
ID=55057147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520754089.0U Expired - Fee Related CN204962079U (en) | 2015-09-25 | 2015-09-25 | PVC double -walled bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204962079U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105877003A (en) * | 2016-06-14 | 2016-08-24 | 王阳春 | Flexible plastic shoe stretcher with groove |
| CN107654747A (en) * | 2017-09-05 | 2018-02-02 | 煌盛集团重庆管业有限公司 | A kind of plastic composite pipe of high intensity crack resistence |
| CN112310927A (en) * | 2020-10-23 | 2021-02-02 | 国网浙江省电力有限公司舟山供电公司 | Submarine cable protection device for improving current-carrying capacity of submarine cable landing upper tower section |
| CN112581858A (en) * | 2020-12-11 | 2021-03-30 | 国网江苏省电力有限公司徐州供电分公司 | Semi-fixed signboard for hard fence of transformer substation |
-
2015
- 2015-09-25 CN CN201520754089.0U patent/CN204962079U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105877003A (en) * | 2016-06-14 | 2016-08-24 | 王阳春 | Flexible plastic shoe stretcher with groove |
| CN105877003B (en) * | 2016-06-14 | 2020-12-04 | 王阳春 | Plastic shoe last with groove and strong extension |
| CN107654747A (en) * | 2017-09-05 | 2018-02-02 | 煌盛集团重庆管业有限公司 | A kind of plastic composite pipe of high intensity crack resistence |
| CN107654747B (en) * | 2017-09-05 | 2023-08-25 | 河南金铨塑业有限公司 | High-strength cracking-resistant plastic composite pipe |
| CN112310927A (en) * | 2020-10-23 | 2021-02-02 | 国网浙江省电力有限公司舟山供电公司 | Submarine cable protection device for improving current-carrying capacity of submarine cable landing upper tower section |
| CN112310927B (en) * | 2020-10-23 | 2022-05-03 | 国网浙江省电力有限公司舟山供电公司 | Submarine cable protection device for improving current-carrying capacity of submarine cable landing upper tower section |
| CN112581858A (en) * | 2020-12-11 | 2021-03-30 | 国网江苏省电力有限公司徐州供电分公司 | Semi-fixed signboard for hard fence of transformer substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204962079U (en) | PVC double -walled bellows | |
| CN202690084U (en) | Hollow inflatable waterproof rubber tape for water structure seam | |
| CN203335090U (en) | Shield segment | |
| CN104405408B (en) | Annular partitioning structure of assembled type rectangular shield tunnel lining | |
| CN204692873U (en) | A kind of enhancing entwining tube with electro-fusion socket connection set | |
| CN204962069U (en) | Corrugated pipe with reinforcing steel belts | |
| CN204437521U (en) | Bellows | |
| CN204922299U (en) | M type helical bellows through socket and sealed nested contact of bellmouth | |
| CN205173763U (en) | Compressor mouth of pipe quick change coupler | |
| CN203421162U (en) | Sealing ring for oil cylinder | |
| CN203512652U (en) | Carrier roller pipe for conveyor | |
| CN203516256U (en) | Hydraulic control two-position three-way cartridge valve | |
| CN202325048U (en) | Push-pull window profile with multi-lateral sealing structures | |
| CN203612842U (en) | Novel escalator roller | |
| CN202746814U (en) | Flat-face flange with high-damping rubber | |
| CN207661264U (en) | Fire-fighting groove type pipe | |
| CN202990123U (en) | Leakage-proof closure strip used for maintenance of color plate | |
| CN206681942U (en) | Wind scooper with deep bead | |
| CN206093345U (en) | Bellows expansion joint mechanism | |
| CN205297192U (en) | Plastic steel casement installation mechanism's of austral window, sliding sash plastic steel window fan -type material | |
| CN205297176U (en) | Last face of plastic steel window fan -type material | |
| CN203585333U (en) | Lip-shaped sealing ring | |
| CN203560225U (en) | Connecting fitting for waterproof pipe materials | |
| CN202431961U (en) | Forcipated double-support seal ring | |
| CN204082481U (en) | A kind of sedan air conditioner Compressor Piston Ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20210925 |