CN205065084U - Bellows - Google Patents
Bellows Download PDFInfo
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- CN205065084U CN205065084U CN201520763987.2U CN201520763987U CN205065084U CN 205065084 U CN205065084 U CN 205065084U CN 201520763987 U CN201520763987 U CN 201520763987U CN 205065084 U CN205065084 U CN 205065084U
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- bellows
- deformed spring
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- link
- internal layer
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Abstract
The utility model relates to an industrial hose, especially a bellows, include: a wire spring is located inside the bellows, at least one inlayer, the cladding is in the wire spring outside, a fibre enhancement layer, the cladding is in the inlayer outside, at least one skin, the cladding is in the fibre enhancement layer outside, the bellows both ends have the connecting piece. The utility model discloses increase the fibre enhancement layer on prior art's basis, improved bellows bearing capacity, fatigue durability, can effectively avoid the rubbing contact of bellows and inside other structures, increase of service life, the inside screw thread that has of connecting piece at bellows both ends to in wire spring cooperation, make bellows and connecting piece zonulae occludens, the junction is by thermoplastic material injection moulding's mounting, thereby has realized four kind inside and outside combination of different materials, reaches seal structure's integrative industry pipe.
Description
Technical field
The utility model relates to a kind of industrial flexible pipe, particularly a kind of bellows being applicable to the outside pressure-bearing of the flexible pipe such as oil field, deep water, the inner easily industrial field of wearing and tearing.
Background technique
In open-air industrial operation, being the vibrations avoiding the change due to operating environment to cause outdoor body, can be the bellows that slight deformation can occur by the shaft design of outdoor study usually, enables to adapt to the fluctuation as environment such as liquid or gaseous states.This bellows is generally designed to length can occur slightly stretch up and down, and horizontal bendable changes the state of shape.But in prior art, the flexible pipe that rubber or plastics are made, critical external compressive resistance ability to bear is limited, easily deforms under pressure outside effect.Because this bellows is particularly useful for the liquid operating environment such as oil field, deep water, body outside be subject to for a long time outside apply to internal pressure, making bellows, long-term structure rubs with internal die etc., easily causes body to wear and tear, so that the leakage of generation gas-liquid.
Critical external compressive resistance flexible pipe conventional in prior art mainly contains two kinds of structures, one is at tubular body decentralized design cellosilk, by filametntary mode reinforced hose anti-pressure ability, and realize flexible pipe sealing by multilayer rubber winding, if application number is disclosed in the Chinese utility model patent of 03147607.4 " flexible pipe ", be the flexible pipe for reinforcing fiber layer in the middle of a kind of two-layer rubber layer.This flexible pipe has certain crushing resistance and good sealing, but the restriction receiving material can only be made into the flexible pipe that outer surface is plane, can curve, but not flexible, fragile under the external environment condition that fluctuation is large.
Another kind of critical external compressive resistance hose design is wavy texture, the Chinese utility model patent being No. 200920317454.6 as application number discloses one " Novel high-pressure plastic spring tube ", this Novel high-pressure plastic spring tube arranges connecting sleeve at the two ends of plastics spring telescopic pipe, and on the connecting sleeve at plastics spring telescopic pipe two ends respectively connect under connect sealing configuration, on connect sealing configuration form, plastics spring composite pipe be plastic tube internal layer lining wire spring formed.
Although this corrugated hose can adapt to the environment that fluctuates preferably, because this plastic tube is still rely on rubber or soft-plastic material to bear pressure, anti-pressure ability is limited, still cannot overcome flexible pipe problem easy to wear.
In addition, the sealing of flexible pipe has a significant impact using effect, and in No. 200920317454.6 utility model patents, the Placement of upper and lower connection sealing configuration and plastic tube is insecure, and sealing effect is poor.
Model utility content
The purpose of this utility model is, for above-mentioned prior art Problems existing, proposes a kind of bellows that can effectively bear external pressure, prevent the interior device friction damage of tubular body and pipe, provides the making method of this bellows simultaneously.
The utility model provides a kind of bellows, effectively can bear body external pressure, prevent body from wearing and tearing.The utility model embodiment one is achieved by following technical proposals:
A kind of bellows, comprising: a deformed spring, is positioned at bellows inside; At least one internal layer, is coated on outside deformed spring; One fabric reinforcement, is coated on outside internal layer; At least one is outer, is coated on outside fabric reinforcement; Described bellows two ends are connected with link, and described link is threaded, and screw thread and deformed spring adaptation, the termination of deformed spring screws in screw thread; The fixed block of ring-type is injected in described bellows and link joint.What fixed block adopted is injection moulding, also i.e. injection moulding.
Deformed spring plays support tube body structure, and the effect that body is stretched, be be that circular spring is different from conventional cross section by spring design simultaneously, spring in the utility model adopts spring axial cross section to be approximate rectangular structure, thus the anti-pressure ability of reinforcement spring, prevent camber of spring in a compressed state.
Internal layer and outer preferably rubber or soft plastic material, while can stretching, all play seal action.Fabric reinforcement is the intensive layer of fibers being wound around braiding, as main bearing course, the material of fabric reinforcement itself does not have obvious stretchability, but owing to adopting the structure being wound around braiding, on bellows axial direction, it is flexible that fabric reinforcement also can realize appropriateness, and bellows scaling of the present utility model can reach 1: 2.
Bellows and link require to be connected closely and good airproof performance, the stabilized structure of deformed spring own, by the simplicity of design of the deformed spring that is threaded of link and crushing resistance is strong; Meanwhile, the deformed spring of bellows, internal layer, fabric reinforcement, skin and link connect as one by the fixed base that thermoplastic material injection moulding is formed, and realize excellent sealing.
Further, described fabric reinforcement is wave structure, and when more arriving crest, fibrous structure is more sparse, and when more arriving trough, fibrous structure is tightr.Corrugated braiding winding structure, while fabric reinforcement is stretched, trough place structure is more tight, crushing resistance and antiwear property stronger.
Further, described deformed spring is wide relative to spring radial direction, axial narrow rectangle or ellipsoidal structure.Radial wide, axially narrow deformed spring part is that circular spring structure has better critical external compressive resistance ability relative to common cutting, and should not deform.It is arc or corner is fillet that the material cross-section of deformed spring is designed to interior outside.The exterior surface of deformed spring be internal layer easy to wear, outer surface is designed to not have the structure of corner angle to be conducive to preventing internal layer from wearing and tearing.
Further, described fixed block is thermoplastic material, and deformed spring, internal layer, fabric reinforcement, skin and link connect as one by fixed block simultaneously.
Further, described internal layer and/or skin are wave structure.
Further, described internal layer and/skin is rubber or soft plastic material.
Further, described deformed spring material is steel.
The beneficial effects of the utility model are:
1. the utility model adds fabric reinforcement on the basis of bellows prior art, make bellows can realize stretching, also can bear high external pressure, fatigue resistance improves, effectively can avoid bellows and the rubbing contact of other structures inner, increase the service life.
2. the link at bellows two ends is directly screwed on the deformed spring of bellows by screw thread, connects closely, not easily gets loose.
3. design fixed block, enhanced leaktightness in the joint of link and bellows.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of the utility model embodiment bellows;
Fig. 2 is the cross-sectional view of the utility model embodiment bellows;
Fig. 3 is the A place partial enlargement structural representation of Fig. 2;
Wherein: 1-bellows, 11-skin, 12-fiber-reinforced layer, 13-internal layer, 14-deformed spring, 2-female link, 21-female bayonet socket, 22-female screw thread, 3-female fixed block, 4-male link, 41-male bayonet socket, 42-male screw thread, 5-male fixed block, a-crest, b-trough, c-opening.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, bellows 1 comprises 4 Rotating fields to the structure of the present embodiment bellows 1, also can be designed as more multi-layered according to actual needs, and the present embodiment is the preferred embodiment that comprehensive fabricating cost and anti-wear effect provide.
Wherein, penetralia is helical deformed spring 14, and is played the effect supporting other Rotating fields by deformed spring 14.Here deformed spring should belong to a kind of Compress Spring, but its material section is different from general spring, and is referred to as deformed spring.For making deformed spring 14 structure more stable, be unlikely at outside deform under pressure, deformed spring 14 is designed to the metal deformed spring that band steel turns to by the present embodiment, and namely the cross section of deformed spring 14 is radial wide, axial narrow rectangle or ellipsoidal structure; The Cross section Design of deformed spring 14 is corner is fillet, thus prevents deformed spring 14 from occurring corner angle, and the layer structure of wearing and tearing deformed spring 14, is especially adjacent to the internal layer 13 of deformed spring 14.
Described internal layer 13 is coated and to be close to deformed spring 14 outside, and internal layer 13 is wave structure, and material is preferably rubber or soft plastic.Internal layer 13 is sealing configuration, plays the effect inside and outside isolated bellows 1 body.
Closely be coated with fabric reinforcement 12 outside internal layer 13, fabric reinforcement 12 adopts inductility or stretchability nanofibres material, and cross winding or braiding form.The overall structure of fabric reinforcement 12 is corrugated, concrete structure be fabric reinforcement 12 when more arriving crest a fibrous structure more sparse, when more arriving trough b, fibrous structure is tightr.Such structure and material makes fabric reinforcement 12 form stable ripple struction, and crest a is subject to the support of inner deformed spring 14, deformation can not occur; , also not easily inwardly or outwards there is deformation in trough b fibre compact; And lamination coating toughness is stronger, not cracky, realizes the structure of stable bellows 1 with this, prevents the effect of wearing and tearing.
The outside of fabric reinforcement 12 is coated with outer 11, and outer 11 structures are identical with internal layer 13, are also designed to wave structure.Outer 11 materials are preferably rubber or soft plastic, form sealing configuration, play the effect inside and outside isolated bellows 1 body equally.
Internal layer 13 and outer 11 is by completely isolated for medium inside and outside the fiber-reinforced layer 12 that is placed in therebetween and bellows 1, and avoid fiber-reinforced layer 12 to be contaminated by medium, moral character changes.According to the needs in actual production, bellows 1 also can design multiple internal layer 13 or multiple outer 11, but does not change internal layer 13 or outer 11 effects played in technological scheme; In the preferred situation of material, the technical solution of the utility model designs an internal layer 13 and a skin 11.
The two ends of bellows 1 are also designed with link.In the present embodiment, one end of bellows 1 is connected with female link 2, female link 2 is designed with the female screw thread 22 that can match with deformed spring 14, female screw thread 22 and deformed spring 14 spin, thus are connected on bellows 1 by female link 2.Female link 2 is also designed with the joint that female bayonet socket 21, female fixed block 3 is closely injection-moulded in female link 2 and bellows 1, and involutory with female bayonet socket 21, thus bellows 1 and link joint are sealed.
In the present embodiment, the other end of bellows 1 is connected with male link 4, male link 4 is designed with the male screw thread 42 that can match with deformed spring 14, male screw thread 42 and deformed spring 14 spin, thus are connected on bellows 1 by male link 4.Male link 4 is also designed with male bayonet socket 41, and another male fixed block 5 is closely injection-moulded in the joint of male link 4 and bellows 1, and involutory with male bayonet socket 41, thus is sealed in bellows 1 and link joint.
Fixed block in the present embodiment---female fixed block 3 and male fixed block 5 are rubber material.
What the present embodiment provided is a preferred embodiment, and bellows 1 one end is male, and one end is female, then can realize between different bellows being interconnected.Also can be other structures by the stud connector design of bellows 1 according to actual needs; such as connect two males or two females etc.; the change that this those skilled in the art make according to actual needs belongs to distortion of the present utility model, all in the utility model protection domain.
The beneficial effects of the utility model are: the utility model is project organization fiber-reinforced layer 12 closely between internal layer 13 and outer 11, in order to support internal layer 13 and outer 11 further on the basis of deformed spring 14, make that bellows 1 is more difficult to be on the whole out of shape under external force, inner layer material is avoided and internal structure contact friction in movement process.Especially the trough b place of fiber-reinforced layer 12 is designed to structure more closely by the utility model, makes bellows 1 no matter all not yielding under the effect of the power of ecto-entad, and structure is simple and effectively can avoid wearing and tearing, increases the working life of bellows.
Above a kind of bellows provided by the utility model and preparation method thereof is described in detail, for one of ordinary skill in the art, according to the thought of the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (9)
1. a bellows (1), is characterized in that, comprising:
One deformed spring (14), is positioned at bellows (1) inner;
At least one internal layer (13), is coated on deformed spring (14) outside;
One fabric reinforcement (12), is coated on internal layer (13) outside;
At least one skin (11), is coated on fabric reinforcement (12) outside;
Described bellows (1) two ends are rotary with link, and described link is threaded, and screw thread and deformed spring (14) adaptation, the termination of deformed spring (14) screws in screw thread;
Described bellows (1) injects the fixed block of ring-type with the joint of link.
2. bellows according to claim 1 (1), it is characterized in that, described fabric reinforcement (12) is wave structure, and more more sparse to fibrous structure during crest (a), more tightr to fibrous structure during trough (b).
3. bellows according to claim 1 (1), is characterized in that, described deformed spring (14) is wide relative to spring radial direction, axially narrow rectangular configuration.
4. bellows according to claim 1 (1), is characterized in that, described fixed block is thermoplastic material.
5. according to the arbitrary described bellows (1) of claim 1-4, it is characterized in that, deformed spring (14), internal layer (13), fabric reinforcement (12), outer (11) and link are integrated by fixed block (3,5).
6. according to the arbitrary described bellows (1) of claim 1-4, it is characterized in that, described internal layer (13) and/or outer (11) are wave structure.
7. according to the arbitrary described bellows (1) of claim 1-4, it is characterized in that, described internal layer (13) and/or outer (11) are rubber or soft plastic material.
8., according to the arbitrary described bellows (1) of claim 1-4, it is characterized in that, described deformed spring (14) material is steel.
9., according to the arbitrary described bellows (1) of claim 1-4, it is characterized in that, described link is metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763987.2U CN205065084U (en) | 2015-09-22 | 2015-09-22 | Bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763987.2U CN205065084U (en) | 2015-09-22 | 2015-09-22 | Bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205065084U true CN205065084U (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520763987.2U Active CN205065084U (en) | 2015-09-22 | 2015-09-22 | Bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205065084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221860A (en) * | 2015-09-22 | 2016-01-06 | 金华市春光橡塑软管有限公司 | A kind of industrial expansion corrugated pipe and preparation method thereof |
| CN106931259A (en) * | 2017-05-08 | 2017-07-07 | 黄颂烺 | It is a kind of telescopic from locking pipe joint |
-
2015
- 2015-09-22 CN CN201520763987.2U patent/CN205065084U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221860A (en) * | 2015-09-22 | 2016-01-06 | 金华市春光橡塑软管有限公司 | A kind of industrial expansion corrugated pipe and preparation method thereof |
| CN105221860B (en) * | 2015-09-22 | 2017-11-28 | 金华春光橡塑科技股份有限公司 | A kind of industrial expansion corrugated pipe and preparation method thereof |
| CN106931259A (en) * | 2017-05-08 | 2017-07-07 | 黄颂烺 | It is a kind of telescopic from locking pipe joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 321017 Zhejiang province Jinhua Jinpan road 420. Patentee after: Jinhua Chunguang rubber Polytron Technologies Inc Address before: 321000 Zhejiang province Jinhua Jinpan road 420. Patentee before: Jinhua Chunguang Rubber & Plastic Hose Co., Ltd. |