CN205036988U - Can bear helical bellows of inside and outside pressure - Google Patents
Can bear helical bellows of inside and outside pressure Download PDFInfo
- Publication number
- CN205036988U CN205036988U CN201520785295.8U CN201520785295U CN205036988U CN 205036988 U CN205036988 U CN 205036988U CN 201520785295 U CN201520785295 U CN 201520785295U CN 205036988 U CN205036988 U CN 205036988U
- Authority
- CN
- China
- Prior art keywords
- layer
- helical bellows
- steel belt
- plastic layer
- plastic
- 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
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a can bear helical bellows of inside and outside pressure, including inner tube and spiral complex in the outside steel band layer of inner tube, the inner tube is by interior first plastic layer, steel wire layer, the second plastic layer of including in proper order outside to, the steel band layer include circular arc portion and with the end connection's of circular arc portion straight portion, the straight portion with the second plastic layer is compound, circular arc portion with vacuole formation between the inner tube. The utility model discloses an outside spiral winding steel band layer at the inner tube can make helical bellows bear the external pressure of high strength, through set up the steel wire layer in the plastic layer of inner tube, can make helical bellows bear interior pressure, be applicable to power and carry.
Description
Technical field
The utility model relates to helical bellows, is specifically related to a kind of helical bellows bearing inside and outside pressure.
Background technique
Traditional helical bellows is three-decker: be followed successively by PE layer, steel belt layer, PE layer from inside to outside, this helical bellows can only bear external pressure, is not suitable for power conveying.Such as CN204647595U discloses a kind of steel and moulds enhancing composite helical bellows, comprises clad, bottom body and steel band, and steel band is between clad and bottom body, and described steel band mainboard both sides of the edge outwards bend, and forms flange; Form cavity in clad and steel strip surface, bottom tube surfaces has the support bracket of coiled coil, and flange is against support bracket; Clad is wrapped on outside support bracket and steel band.Steel of the present utility model is moulded and is strengthened the sectional shape that composite helical bellows changes steel band, conveniently steel band can be taken out by the clad isolating the top layer of cavity when reclaiming bellows, support bracket is conducive to sharing steel band stress, improves the intensity of bellows.But can not bear interior pressure when this helical bellows is used for power conveying, helical bellows easily breaks, and in use there is certain potential safety hazard.
Model utility content
The purpose of this utility model is to provide a kind of helical bellows that simultaneously can bear inside and outside pressure, not easily breaks when this helical bellows is used for power conveying.
For reaching this object, the utility model by the following technical solutions:
A kind of helical bellows bearing inside and outside pressure is provided, comprise the steel belt layer that interior pipe and spiral are compound in described interior pipe outside, described interior pipe comprises the first plastic layer, steel wire floor, the second plastic layer from inside to outside successively, the straight portion that described steel belt layer comprises circular arc part and is connected with the end of described circular arc part, described straight portion and described second plastic layer compound, form cavity between described circular arc part and described interior pipe.
As the preferred version of helical bellows, the outer surface that the outer surface of described steel belt layer, described second plastic layer and described steel belt layer stagger is provided with the 3rd plastic layer.
As the preferred version of helical bellows, the surface of steel belt layer is coated with binding resin layer, adhering resin layer comprises the first adhering resin layer and the second adhering resin layer, first adhering resin layer is arranged on the side of steel belt layer near interior pipe, and the second adhering resin layer is arranged on the side of steel belt layer near the 3rd plastic layer.
As the preferred version of helical bellows, the thickness that the 3rd plastic layer covers the part in straight portion is greater than the thickness of described 3rd plastic layer of remainder.
As the preferred version of helical bellows, described first plastic layer, described second plastic layer, described 3rd plastic layer are PE layer.
As the preferred version of helical bellows, described steel wire floor is reticular structure.
As the preferred version of helical bellows, between described steel belt layer and described binding resin layer, be also provided with resin layer.
As the preferred version of helical bellows, be provided with at least one in described cavity and strengthen internal-rib.
As the preferred version of helical bellows, be symmetrically arranged with two along the center line of described steel belt layer in described cavity and strengthen internal-rib.
As the preferred version of helical bellows, described enhancing internal-rib is fixedly connected with described steel belt layer.
The beneficial effects of the utility model: the utility model, by the external helicoid winding steel layer at interior pipe, can make helical bellows bear the external pressure of high strength; By arranging steel wire floor in the plastic layer of interior pipe, helical bellows can be made to bear interior pressure, being applicable to power conveying.
Accompanying drawing explanation
Fig. 1 is the structural representation bearing the helical bellows of inside and outside pressure described in the utility model embodiment.
Fig. 2 is the structural representation bearing the helical bellows of inside and outside pressure described in another embodiment of the utility model.
Fig. 3 is the structural representation of the circular arc part of helical bellows described in the utility model.
In Fig. 1 ~ 3:
1, interior pipe; 11, the first plastic layer; 12, steel wire floor; 13, the second plastic layer; 2, steel belt layer; 21, circular arc part; 22, straight portion; 3, cavity; 4, the 3rd plastic layer; 5, binding resin layer; 51, the first binding resin layer; 52, the second binding resin layer.
Embodiment
The technical solution of the utility model is further illustrated by specific embodiment below in conjunction with Fig. 1 ~ 3.
In the present embodiment, the helical bellows that can bear inside and outside pressure comprises the steel belt layer 2 that interior pipe 1 and spiral are compound in interior pipe 1 outside, interior pipe 1 comprises the first plastic layer 11, steel wire floor 12, second plastic layer 13 from inside to outside successively, the straight portion 22 that steel belt layer 2 comprises circular arc part 21 and is connected with the end of circular arc part 21, straight portion 22 and the second plastic layer 13 compound, form cavity 3 between circular arc part 21 and interior pipe 1.As shown in Figure 1, by the external helicoid winding steel layer 2 at interior pipe 1, helical bellows can be made to bear the external pressure of high strength; By arranging steel wire floor 12 in the plastic layer of interior pipe 1, helical bellows can be made to bear interior pressure, being applicable to power conveying.
The outer surface that the outer surface of steel belt layer 2, the second plastic layer 13 stagger with steel belt layer 2 is provided with the 3rd plastic layer 4.The arranging of 3rd plastic layer 4 can strengthen on the one hand the combination force of steel belt layer 2 and interior pipe 1, on the other hand can as the protective layer of steel belt layer 2.
As shown in Figure 3, the surface of steel belt layer 2 is coated with binding resin layer 5, adhering resin layer 5 comprises the first adhering resin layer 51 and the second adhering resin layer 52, first adhering resin layer 51 is arranged on the side of steel belt layer 2 near interior pipe 1, and the second adhering resin layer 52 is arranged on the side of steel belt layer 2 near the 3rd plastic layer 4.
As shown in Figure 2, in another embodiment of the present utility model, the thickness that the 3rd plastic layer 4 covers the part in described straight portion 22 is greater than the thickness of described 3rd plastic layer 4 of remainder, with the intensity in the straight portion 22 with interior pipe 1 contact segment that increase steel belt layer 2 further.
The first plastic layer 11, second plastic layer 13 in the present embodiment, the 3rd plastic layer 4 are PE layer.
Steel wire floor 12 in above-described embodiment is reticular structure, can increase the intensity of interior pipe 1 further, and in improving, pipe 1 bears dynamics to interior pressure.
Also be provided with resin layer (not shown) between steel belt layer 2 in above-described embodiment and binding resin layer 5, prevent steel belt layer from getting rusty and affect its usability, extend the working life of helical bellows.
In the present embodiment, at least one can also be arranged strengthen internal-rib in cavity 3, to strengthen the intensity of steel belt layer 2, thus improve helical bellows dynamics is born to external pressure.Such as in cavity 3, be symmetrically arranged with two along the center line of steel belt layer and strengthen internal-rib (not shown), strengthen internal-rib and be fixedly connected with steel belt layer 2.Distance between the thickness of the plastic layer in the present embodiment, steel wire floor 12 and steel belt layer 2, binding resin layer 5, adjacent steel belt 2 and the size of cavity 3 are all determined according to different calibers.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (10)
1. one kind can bear in, the helical bellows of external pressure, it is characterized in that, comprise interior pipe (1) and spiral and be compound in the outside steel belt layer (2) of described interior pipe (1), described interior pipe (1) comprises the first plastic layer (11) from inside to outside successively, steel wire floor (12), second plastic layer (13), the straight portion (22) that described steel belt layer (2) comprises circular arc part (21) and is connected with the end of described circular arc part (21), described straight portion (22) and described second plastic layer (13) compound, cavity is formed between described circular arc part (21) and described interior pipe (1).
2. helical bellows according to claim 1, it is characterized in that, the outer surface that the outer surface of described steel belt layer (2), described second plastic layer (13) stagger with described steel belt layer (2) is provided with the 3rd plastic layer (4).
3. helical bellows according to claim 2, it is characterized in that, the surface of described steel belt layer (2) is coated with binding resin layer (5), described adhering resin layer (5) comprises the first adhering resin layer (51) and the second adhering resin layer (52), described first adhering resin layer (51) is arranged on the side of described steel belt layer (2) near described interior pipe (1), and described second adhering resin layer (52) is arranged on the side of described steel belt layer (2) near described 3rd plastic layer (4).
4. helical bellows according to claim 2, is characterized in that, the thickness that described 3rd plastic layer (4) covers the part of described straight portion (22) is greater than the thickness of described 3rd plastic layer (4) of remainder.
5. helical bellows according to claim 2, is characterized in that, described first plastic layer (11), described second plastic layer (13), described 3rd plastic layer (4) are PE layer.
6. helical bellows according to claim 1, is characterized in that, described steel wire floor (12) is reticular structure.
7. helical bellows according to claim 3, is characterized in that, is also provided with resin layer between described steel belt layer (2) and described binding resin layer (5).
8. the helical bellows according to any one of claim 1 to 7, is characterized in that, is provided with at least one and strengthens internal-rib in described cavity (3).
9. helical bellows according to claim 8, is characterized in that, is symmetrically arranged with two strengthens internal-rib in described cavity (3) along the center line of described steel belt layer (2).
10. helical bellows according to claim 8, is characterized in that, described enhancing internal-rib is fixedly connected with described steel belt layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520785295.8U CN205036988U (en) | 2015-10-12 | 2015-10-12 | Can bear helical bellows of inside and outside pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520785295.8U CN205036988U (en) | 2015-10-12 | 2015-10-12 | Can bear helical bellows of inside and outside pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205036988U true CN205036988U (en) | 2016-02-17 |
Family
ID=55295891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520785295.8U Expired - Fee Related CN205036988U (en) | 2015-10-12 | 2015-10-12 | Can bear helical bellows of inside and outside pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205036988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287023A (en) * | 2016-10-25 | 2017-01-04 | 顾地科技股份有限公司 | Steel band entirety strengthens helical bellows |
| CN109058604A (en) * | 2018-10-12 | 2018-12-21 | 安徽郎川金鹏塑业有限公司 | A kind of steel band bellows and its connection structure |
-
2015
- 2015-10-12 CN CN201520785295.8U patent/CN205036988U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287023A (en) * | 2016-10-25 | 2017-01-04 | 顾地科技股份有限公司 | Steel band entirety strengthens helical bellows |
| CN109058604A (en) * | 2018-10-12 | 2018-12-21 | 安徽郎川金鹏塑业有限公司 | A kind of steel band bellows and its connection structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY195852A (en) | Irregular-Shaped Cable and Method for Manufacturing the Cable | |
| CN205036988U (en) | Can bear helical bellows of inside and outside pressure | |
| CN205877456U (en) | HDPE cavity wall plastic steel wound pipe | |
| CN203131243U (en) | Polyvinylchloride composite pipeline | |
| CN204647595U (en) | Enhancing composite helical bellows moulded by a kind of steel | |
| CN204066825U (en) | A kind of bend-resistant electric cable protection tube | |
| CN202664036U (en) | Fishing rod with stronger toughness | |
| CN202370164U (en) | Pressure-resistant composite reinforcing pipe | |
| CN203325501U (en) | High strength cable with triangular supporting frame | |
| CN205605707U (en) | Compound spring of stranded | |
| CN202381514U (en) | Reinforced sleeve of vehicle brake assembly | |
| CN204062230U (en) | A kind of high flexibility composite pipe | |
| CN204547210U (en) | The wear-resisting electric power bellows of double-layer coextrusion | |
| CN203615067U (en) | External reinforcing ring device for outer tank of low temperature pressure vessel | |
| CN204066818U (en) | A kind of high flexibility cable protection tube | |
| CN208559552U (en) | A kind of plastic cladding element for electric four-wheeled van | |
| CN203295781U (en) | Reinforced warp knitting machine warp beam | |
| CN202834450U (en) | One-step formed dual-plain wall winding pipe | |
| CN203560267U (en) | Novel shifting push-pull cable of medium-low-grade automobile | |
| CN102941790A (en) | Stabilizer bar bushing structure of motor vehicle | |
| CN204054683U (en) | A kind of bend pipe assembling die | |
| CN203508874U (en) | Reinforced steel wire spirally-wound stranding pre-forming shaft | |
| CN201746773U (en) | Guardrail face tube square tube joint | |
| CN203348893U (en) | Plastic profile of iron tube supporting core | |
| CN207247988U (en) | A kind of modern tradition bow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Can bear helical bellows of inside and outside pressure Effective date of registration: 20171227 Granted publication date: 20160217 Pledgee: China Co. truction Bank Corp Guangzhou Huadu Branch Pledgor: GUANGZHOU FENGYE PIPE INDUSTRY CO.,LTD. Registration number: 2017440000212 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211216 Granted publication date: 20160217 Pledgee: China Co. truction Bank Corp Guangzhou Huadu Branch Pledgor: GUANGZHOU FENGYE PIPE INDUSTRY CO.,LTD. Registration number: 2017440000212 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20211012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |