CN204176178U - Compound bending bellows - Google Patents
Compound bending bellows Download PDFInfo
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- CN204176178U CN204176178U CN201420607926.2U CN201420607926U CN204176178U CN 204176178 U CN204176178 U CN 204176178U CN 201420607926 U CN201420607926 U CN 201420607926U CN 204176178 U CN204176178 U CN 204176178U
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- stiffening rib
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Abstract
The utility model discloses compound bending bellows, it comprises integrated tube body, and described tube body is provided with the flexible wall section that can be stretched, and the outer side wall of described flexible wall section is provided with the first stiffening rib that the axial direction along tube body runs through.The outer side wall of the flexible wall section in the utility model is provided with the first stiffening rib that the axial direction along tube body runs through, based on said structure, due to can not bending of the first stiffening rib, therefore flexible wall section can not bend to any direction, can only bend along specific direction, after the flexible wall section that first stiffening rib is right is provided with the second stiffening rib relative with the first stiffening rib, under the common leading role of the first stiffening rib and the second stiffening rib, flexible wall section can only bend along the opposite direction of specific one direction and/or this specific direction, achieve the bidirectional oriented bending of bellows, can as hollow reinforced rib for the production of outer ripple plastic winding structure wall pipe.
Description
Technical field
The utility model relates to a kind of bellows, particularly relates to a kind of compound bending bellows.
Background technique
Bellows, has the housing of the cylinder-shaped thin wall wrinkle of multiple transverse wave.Bellows is generally made up of PP, PA or PE material, and it has elasticity, can produce displacement or bend under pressure, axial force, transverse force or Moment.In BENDING PROCESS, because bellows is the housing of the cylinder-shaped thin wall wrinkle with multiple transverse wave, it can bend to any direction.Due to the non-directional flexural property of bellows, it is made to be widely used in the line of Building wood and machinery.In addition, in the production of outer ripple plastic winding structure wall pipe with hollow reinforced rib, also adopt bellows to be hollow reinforced rib, its main cause is utilize bellows energy arbitrarily to bending characteristic.The concrete production method of this structure-wall pipe material is, after the outer surface parcel melten gel of bellows, with spiral winding mode cross-pressure on uncooled winding tube wall, again after the rolling of pinch roller, bellows and melten gel and tube wall fuse together, and form the outer ripple plastic winding structure wall pipe with hollow reinforced rib.But, there is following shortcoming in this technique: 1) because bellows is softer, at the parcel melten gel after being rolled by pinch roller that is heated, the cross section of bellows becomes oval, the ratio between the width of hollow reinforced rib and height is caused to be greater than 1, reduce the ring stiffness of outer ripple plastic winding structure wall pipe, reduce the integral bending of wall pipe; 2) being heated and rolling rear distortion due to bellows, the height of the hollow reinforced rib of this wall pipe can only reach 6 ~ 8% of wall pipe diameter; 3) cross section is that the area of contact of the bellows of ring and tube wall is few, causes both connections weak, reduces the integral bending of wall pipe.
Therefore, be necessary to provide a kind of novel bellows, to overcome above-mentioned technique and structural various shortcoming.
Model utility content
The purpose of this utility model, is to provide a kind of compound bending bellows.
The solution that the utility model solves its technical problem is: compound bending bellows, it comprises integrated tube body, described tube body is provided with the flexible wall section that can be stretched, and the outer side wall of described flexible wall section is provided with the first stiffening rib that the axial direction along tube body runs through.
As the further improvement of technique scheme, the right flexible wall section of described first stiffening rib is provided with second stiffening rib relative with the first stiffening rib.
As the further improvement of technique scheme, described flexible wall section has the ripple of a plurality of indent evaginations, the cross section of described ripple is the one in sharp triangle, obtuse triangle shape, trapezoid shaped, rectangle, toroidal or elliptical shape.
As the further improvement of technique scheme, the width of described first stiffening rib is equal to or less than the width of the second stiffening rib.
As the further improvement of technique scheme, the cross section of described flexible wall section is circular, ellipse, rectangle or trapezoidal middle one.
As the further improvement of technique scheme, the cross section of described flexible wall section is isosceles trapezoid or right-angled trapezium.
As the further improvement of technique scheme, the angular range that described flexible wall section can bend is 0 ~ 180 °.
As the further improvement of technique scheme, the material of described tube body is PE, PP, EVA, PVC or ABS material.
The beneficial effects of the utility model are: the outer side wall of the flexible wall section in the utility model is provided with the first stiffening rib that the axial direction along tube body runs through, based on said structure, due to can not bending of the first stiffening rib, therefore flexible wall section can not bend to any direction, can only bend along specific direction, after the flexible wall section that first stiffening rib is right is provided with the second stiffening rib relative with the first stiffening rib, under the common leading role of the first stiffening rib and the second stiffening rib, flexible wall section can only bend along the opposite direction of specific one direction and/or this specific direction, achieve the bidirectional oriented bending of bellows, can as hollow reinforced rib for the production of outer ripple plastic winding structure wall pipe.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the utility model is further described.
Fig. 1 is side view of the present utility model;
Fig. 2 is plan view of the present utility model;
Fig. 3 is the cross sectional representation of first embodiment in the utility model;
Fig. 4 is the cross sectional representation of second embodiment in the utility model;
Fig. 5 is the cross sectional representation of the 3rd embodiment in the utility model;
Fig. 6 is the cross sectional representation of the 4th embodiment in the utility model.
Embodiment
Below in conjunction with accompanying drawing, describe application of the present utility model in detail.
With reference to Fig. 1 ~ Fig. 2, compound bending bellows, it comprises integrated tube body, the material of this tube body is plastics, by extruding one-body molded or injection moulding integrated molding, described tube body is provided with the flexible wall section 1 that can be stretched, and the outer side wall of described flexible wall section 1 is provided with the first stiffening rib 20 that the axial direction along tube body runs through.
Be further used as preferred embodiment, the right flexible wall section of described first stiffening rib 20 is provided with second stiffening rib 21 relative with the first stiffening rib 20.
The outer side wall of flexible wall section is provided with the first stiffening rib 20 that the axial direction along tube body runs through, based on said structure, due to can not bending of the first stiffening rib 20, therefore flexible wall section can not bend to any direction, can only bend along specific direction, after the flexible wall section that first stiffening rib 20 is right is provided with the second stiffening rib 21 relative with the first stiffening rib 20, under the common leading role of the first stiffening rib 20 and the second stiffening rib 21, flexible wall section can only bend along the opposite direction of specific one direction and/or this specific direction, achieve the bidirectional oriented bending of bellows, can as hollow reinforced rib for the production of outer ripple plastic winding structure wall pipe.
Be further used as preferred embodiment, described flexible wall section 1 has the ripple 10 of a plurality of indent evaginations, interval between adjacent ripple 10 is the same, when tube body bends, ripple 10 is stretched, and the cross section of described ripple 10 is the one in sharp triangle, obtuse triangle shape, trapezoid shaped, rectangle, toroidal or elliptical shape.Certainly, the sectional shape of ripple 10 is not limited only to the above-mentioned shape exemplified, and according to the actual needs, can make the ripple that different cross section shape produced by different shaping dies.
Be further used as preferred embodiment, the width of described first stiffening rib 20 is equal to or less than the width of the second stiffening rib 21.Due to the resistance to flexure of material, the width of the first stiffening rib 20 and the second stiffening rib 21 can not be wide or narrow, the first wide stiffening rib 20 and the second stiffening rib 21 can make the adhesive strength between stiffening rib and ripple reduce, and easily occur Decrepitation Phenomena when bending; The first narrow stiffening rib 20 and the second stiffening rib 21 can not play the directed effect of guiding.
Be further used as preferred embodiment, the embodiment as shown in Fig. 3 ~ Fig. 6, the cross section of described flexible wall section 1 is circular, ellipse, rectangle or trapezoidal middle one.Certainly, the shape of cross section of flexible wall section 1 is not limited only to the above-mentioned shape exemplified, and according to the actual needs, can make different shaping dies and produce different cross section shape.
Be further used as preferred embodiment, the cross section of described flexible wall section 1 is isosceles trapezoid or right-angled trapezium.The cross section of flexible wall section 1 is made into isosceles trapezoid or right-angled trapezium, power is provided support by trapezoidal two sides, at the parcel melten gel after being rolled by pinch roller that is heated, the cross-sectional deformation of bellows is little, make between the width of hollow reinforced rib and height close to 1, improve the ring stiffness of outer ripple plastic winding structure wall pipe, improve the integral bending of wall pipe.The cross section of flexible wall section 1 is made into isosceles trapezoid or right-angled trapezium, by the plane of trapezium base, flexible wall section 1 and the area of contact of wall pipe can be increased, improve tube body and connect stability with between wall pipe, and then improve the linking intensity between hollow reinforced rib and wall pipe.
Be further used as preferred embodiment, the angular range that described flexible wall section 1 can bend is 0 ~ 180 °.Due to the flexible wall section 1 energy free bend between the first stiffening rib 20 and the second stiffening rib 21, it can realize bending in 0 ~ 180 °.
Be further used as preferred embodiment, the material of described tube body is PE, PP, EVA, PVC or ABS material.
More than that better embodiment of the present utility model is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (8)
1. compound bending bellows, it comprises integrated tube body, it is characterized in that: described tube body is provided with the flexible wall section (1) that can be stretched, the outer side wall of described flexible wall section (1) is provided with the first stiffening rib (20) that the axial direction along tube body runs through.
2. compound bending bellows according to claim 1, is characterized in that: the right flexible wall section of described first stiffening rib (20) is provided with second stiffening rib (21) relative with the first stiffening rib (20).
3. compound bending bellows according to claim 1 and 2, it is characterized in that: the ripple (10) described flexible wall section (1) with a plurality of indent evaginations, the cross section of described ripple (10) is the one in sharp triangle, obtuse triangle shape, trapezoid shaped, rectangle, toroidal or elliptical shape.
4. compound bending bellows according to claim 2, is characterized in that: the width of described first stiffening rib (20) is equal to or less than the width of the second stiffening rib (21).
5. compound bending bellows according to claim 1 and 2, is characterized in that: the cross section of described flexible wall section (1) is circular, ellipse, rectangle or trapezoidal middle one.
6. compound bending bellows according to claim 5, is characterized in that: the cross section of described flexible wall section (1) is isosceles trapezoid or right-angled trapezium.
7. compound bending bellows according to claim 1 and 2, is characterized in that: the angular range that described flexible wall section (1) can bend is 0 ~ 180 °.
8. compound bending bellows according to claim 1, is characterized in that: the material of described tube body is PE, PP, EVA, PVC or ABS material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607926.2U CN204176178U (en) | 2014-10-20 | 2014-10-20 | Compound bending bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420607926.2U CN204176178U (en) | 2014-10-20 | 2014-10-20 | Compound bending bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204176178U true CN204176178U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420607926.2U Active CN204176178U (en) | 2014-10-20 | 2014-10-20 | Compound bending bellows |
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| CN (1) | CN204176178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315270A (en) * | 2014-10-20 | 2015-01-28 | 戴爱清 | Bidirectional bent corrugated pipe |
| CN106398097A (en) * | 2016-08-31 | 2017-02-15 | 宁波威丰新材料有限公司 | Two-way stretching embossing co-extruded film |
-
2014
- 2014-10-20 CN CN201420607926.2U patent/CN204176178U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315270A (en) * | 2014-10-20 | 2015-01-28 | 戴爱清 | Bidirectional bent corrugated pipe |
| CN106398097A (en) * | 2016-08-31 | 2017-02-15 | 宁波威丰新材料有限公司 | Two-way stretching embossing co-extruded film |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |