CN206268653U - A kind of bellows - Google Patents
A kind of bellows Download PDFInfo
- Publication number
- CN206268653U CN206268653U CN201621113381.5U CN201621113381U CN206268653U CN 206268653 U CN206268653 U CN 206268653U CN 201621113381 U CN201621113381 U CN 201621113381U CN 206268653 U CN206268653 U CN 206268653U
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- bellows
- enlarging
- face
- rear end
- limited block
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Abstract
The utility model discloses a kind of bellows, enlarging including front end, the enlarging inwall is provided with limited block, the limited block front end face is inclined spigot surface and rear end face is confined planes perpendicular to the bellows axis, bellows rear end end face is provided with elastic seal ring and rear end outer wall is provided with flexibly positioned piece, and the flexibly positioned piece of end face occurs elastic deformation after pushing against and being compressed in the confined planes and elastic seal ring after the enlarging is inserted in the next bellows rear end.The utility model has advantages below and effect：Limited block is set to next bellows rear alignment using in bellow flare, enlarging abrasion or expansion do not interfere with bellows connection and sealing performance during use, have reached that bellows is connected firmly, good seal performance, enlarging are not easily broken, the effect of long service life.
Description
Technical field
The utility model is related to pipe fitting field, more particularly to a kind of bellows.
Background technology
Bellows is mainly including metal bellows, expansion bellow, corrugated tube, diaphragm and diaphragm capsule and metal hose etc..
Metal bellows is mainly used in the effect such as compensation pipes thermal deformation, damping, absorption line sedimentation and deformation, is widely used in stone
The industries such as change, instrument, space flight, chemical industry, electric power, cement, metallurgy.The other materials such as plastics bellows is worn in medium conveying, electric power
The fields such as line, lathe, household electrical appliances play the role of irreplaceable.
Bellows typically offers enlarging at one end, for next one end grafting of bellows.But bellows is by expanding
Tube wall is thinning after mouthful, and intensity diminishes and bellow flare diameter easily becomes big, next bellows grafting during causing use
After connect insecure and poorly sealed.To solve the above problems, Authorization Notice No. is the Chinese patent of CN2795613Y《Plastics ripple
Line pipe strengthens enlarging》A kind of plastic film capicitor is disclosed, including the enlarging being connected with double-walled plastic bellows body, in the outer of enlarging
Also winding is stained with a circle plastic sheet Reinforced Hoop on side pipe wall.
But above-mentioned plastic corrugated pipe reinforced expansive mouth has the following disadvantages：Plastic sheet Reinforced Hoop is wrapped in enlarging outboard tube
Wall, during use due to the reason such as wear and tear, expand with heat and contract with cold make enlarging diameter become it is big after expand outwardly when, plastic sheet Reinforced Hoop
The enlarging outer wall for covering both sides is expanded outwardly, and the enlarging outer wall at plastic sheet Reinforced Hoop is tied tight so that enlarging outer wall occurs
Deformation, easily causes the rupture of enlarging outer wall.
Utility model content
The purpose of this utility model is to provide a kind of bellows, with the effect being connected firmly, enlarging is not easily broken.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of bellows, including
The enlarging of front end, the enlarging inwall is provided with limited block, and the limited block front end face is for inclined spigot surface and rear end face is vertical
Directly in the confined planes of the bellows axis, bellows rear end end face is provided with elastic seal ring and rear end outer wall is provided with elasticity
Locating piece, the flexibly positioned piece of end face is pushed against in the confined planes after enlarging is inserted in the next bellows rear end
And elastic seal ring compressed after there is elastic deformation.
By using above-mentioned technical proposal, the rear end of next bellows is inserted into the enlarging of bellows, elasticity is fixed
Position block touches the spigot surface on limited block, the flexibly positioned piece of generation elastic deformation in the presence of spigot surface, when flexibly positioned
By recovering after limited block, now there is elastic deformation in elastic seal ring to block after being compressed, and flexibly positioned piece of end face is pushed against
On the confined planes of limited block, while the junction of two bellowss is sealed.Rear edge is deformed upon by elastic seal ring
Axially flexibly positioned piece is fixed on the confined planes of limited block by bellows, when bellows enlarging in use radially
When expanding outwardly, will not both suffer restraints and cause enlarging to rupture, two attachment structures of bellows junction are not interfered with again
And sealing property, reached be connected firmly, good seal performance, enlarging are not easily broken effect with long service life.
It is of the present utility model to be further arranged to：The limited block is integrally formed at the enlarging inwall.
It is easily manufactured by using above-mentioned technical proposal, it is easy to processing.
It is of the present utility model to be further arranged to：The limited block is ring-type.
By using above-mentioned technical proposal, limited block is fixed on enlarging inwall for ring-type.
It is of the present utility model to be further arranged to：The flexibly positioned piece of rear end face is provided with the wedge for adapting to the spigot surface
Shape face.
By using above-mentioned technical proposal, when flexibly positioned piece of lozenges is touched on spigot surface, it is to avoid flexibly positioned
Block corner angle touch spigot surface and cause abrasion.
It is of the present utility model to be further arranged to：Described flexibly positioned piece is bonded in the bellows rear end by glue.
By using above-mentioned technical proposal, connection is simple, easily manufactured.
It is of the present utility model to be further arranged to：The bellows includes body and is arranged at the ripple of the tube wall
Structure, the ripple struction is reinforcement that is hollow and being provided with V-arrangement, and the reinforcement two ends are fixedly connected on the ripple struction
Inwall and middle part flex point is fixedly connected on the tube wall.
Tube wall is fixedly connected on by using above-mentioned technical proposal, reinforcement middle part flex point, two ends end is fixed and connected
It is connected on bellows ripple struction inwall, keeps ripple struction stabilization.
It is of the present utility model to be further arranged to：The body, the ripple struction and the reinforcement are integrally formed.
By using above-mentioned technical proposal, it is easy to the processing of bellows.
In sum, the utility model has the advantages that：Using the setting limited block in bellow flare under
A piece bellows rear alignment, enlarging abrasion or expansion do not interfere with bellows connection and sealing performance during use, reach
Arrived bellows be connected firmly, good seal performance, the effect of long service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is cross-sectional view of the present utility model；
Fig. 3 is the structural representation at the A positions of Fig. 2；
Fig. 4 is the structural representation at the B positions of Fig. 2.
In figure：1st, body；2nd, ripple struction；21st, reinforcement；3rd, enlarging；4th, limited block；41st, spigot surface；42nd, confined planes；
5th, flexibly positioned piece；51st, lozenges；6th, elastic seal ring.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Specific embodiment is only that, to explanation of the present utility model, it is not to limitation of the present utility model, this area
Technical staff can make the modification without creative contribution to the present embodiment as needed after this specification is read, but only
All to be protected by Patent Law in right of the present utility model.
A kind of bellows, as shown in Fig. 1 to Fig. 2, including body 1 and the ripple struction 2 for being integrally formed at the outer wall of body 1,
Ripple struction 2 is hollow and twist.The reinforcement 21 of V-arrangement is provided with inside ripple struction 2, the two ends of reinforcement 21 are fixedly connected
In the inwall of ripple struction 2, middle part flex point is fixed on the outer wall of body 1.Body 1, ripple struction 2 and reinforcement 21 are integrally formed and
There is plastic production to form.
As shown in figure 1, with reference to Fig. 3 and Fig. 4, bellows front end is the structure of enlarging 3, and the bottom wall of enlarging 3 is perpendicular to bellows
The plane of axis.The inwall of enlarging 3 is integrally formed with the limited block 4 of a loop, and the front end face of limited block 4 is inclined spigot surface 41
And rear end face is confined planes 42, axis of the confined planes 42 perpendicular to bellows.It is annular in shape that bellows rear end outer wall is provided with a circle
Flexibly positioned piece 5, flexibly positioned piece 5 can be the block being made by elastic caoutchouc, and flexibly positioned piece 5 passes through seccotine
It is bonded on bellows.Flexibly positioned piece of 5 rear end faces are inclined lozenges 51, adapt to spigot surface 41.Before flexibly positioned piece 5
End face is parallel to confined planes 42.The rear end face of bellows is additionally provided with elastic seal ring 6, and the end face of elastic seal ring 6 is viscous by glue
Bellows rear end face is fixed in conjunction.Elastic seal ring 6 selects resilient rubber seal.
When two bellowss are connected, as shown in Fig. 1 to Fig. 4, a bellows is fixed, after next bellows
End is inserted into bellow flare 3, and next flexibly positioned piece 5 of bellows of lozenges 51 occurs after touching spigot surface 41
The elastic seal ring 6 of elastic deformation and rear end face touches the bottom wall of bellow flare 3, and limited block 4 is passed through when flexibly positioned piece 5
After recover, now there is elastic deformation in elastic seal ring 6 after being compressed, and flexibly positioned piece 5 of end face is pushed against into limited block 4
On confined planes 42, the connection and sealing of bellows are realized.
Claims (7)
1. a kind of enlarging (3) of bellows, including front end, it is characterised in that：Enlarging (3) inwall is provided with limited block (4), institute
Limited block (4) front end face is stated for inclined spigot surface (41) and rear end face are the confined planes perpendicular to the bellows axis
(42), bellows rear end end face is provided with elastic seal ring (6) and rear end outer wall is provided with flexibly positioned piece (5), when next
The enlarging (3) is inserted in the bellows rear end, and described flexibly positioned piece of (5) end face is pushed against in the confined planes (42) and bullet afterwards
There is elastic deformation after being compressed in property sealing ring (6).
2. a kind of bellows according to claim 1, it is characterised in that：The limited block (4) is integrally formed at the expansion
Mouth (3) inwall.
3. a kind of bellows according to claim 1, it is characterised in that：The limited block (4) is ring-type.
4. a kind of bellows according to claim 1, it is characterised in that：Described flexibly positioned piece of (5) rear end face is provided with suitable
Lozenges (51) assigned in the spigot surface (41).
5. a kind of bellows according to claim 1, it is characterised in that：Flexibly positioned piece (5) are bonded by glue
In the bellows rear end.
6. a kind of bellows according to claim 1, it is characterised in that：The bellows includes body (1) and is arranged at
The ripple struction (2) of body (1) outer wall, the ripple struction (2) is reinforcement (21) that is hollow and being provided with V-arrangement, described
Reinforcement (21) two ends are fixedly connected on the ripple struction (2) inwall and middle part flex point is fixedly connected on the body (1) outward
Wall.
7. a kind of bellows according to claim 6, it is characterised in that：The body (1), the ripple struction (2) and
The reinforcement (21) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113381.5U CN206268653U (en) | 2016-10-11 | 2016-10-11 | A kind of bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621113381.5U CN206268653U (en) | 2016-10-11 | 2016-10-11 | A kind of bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268653U true CN206268653U (en) | 2017-06-20 |
Family
ID=59038779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621113381.5U Active CN206268653U (en) | 2016-10-11 | 2016-10-11 | A kind of bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468877A (en) * | 2018-05-31 | 2018-08-31 | 浙江阮氏塑业有限公司 | A kind of PPCV-R double-wall corrugated pipes |
-
2016
- 2016-10-11 CN CN201621113381.5U patent/CN206268653U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468877A (en) * | 2018-05-31 | 2018-08-31 | 浙江阮氏塑业有限公司 | A kind of PPCV-R double-wall corrugated pipes |
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