CN206694721U - Floating sealed sleeve expansion joint - Google Patents
Floating sealed sleeve expansion joint Download PDFInfo
- Publication number
- CN206694721U CN206694721U CN201720465095.3U CN201720465095U CN206694721U CN 206694721 U CN206694721 U CN 206694721U CN 201720465095 U CN201720465095 U CN 201720465095U CN 206694721 U CN206694721 U CN 206694721U
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- CN
- China
- Prior art keywords
- airtight
- sleeve
- watertight padding
- outer barrel
- inner cylinder
- 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.)
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Abstract
A kind of floating sealed sleeve expansion joint, for compensating expanding with heat and contract with cold for pipeline.It includes inner cylinder（1）, around the airtight and watertight padding of inner cylinder（3）, the excircle part of airtight and watertight padding is by a sleeve（2）Covered, the end face of the inward flange of sleeve left end and the left surface of airtight and watertight padding are affixed, and outer barrel is cased with the right station of inner cylinder（4）, outer barrel left end stretched in sleeve, and the left side of outer barrel and the right flank of airtight and watertight padding are affixed, and extend an outward flange in the left end of sleeve（8）, outer barrel it is cylindrical on be welded with a flange（5）, multiple bolts（6）Airtight and watertight padding is compressed by the nut at bolt both ends through outward flange and flange.Pressed by sleeve and outer barrel to the both sides of airtight and watertight padding, make airtight and watertight padding contact with sleeve and inner cylinder uniformly, closely；Compared with prior art, in this sleeve expansion joint, airtight and watertight padding right pressure is improved, and airtight and watertight padding right part resist fluids etch ability is strengthened, and effectively prevent the decline of sealing property.
Description
Technical field
A kind of sleeve expansion joint is the utility model is related to, it is used to compensate expanding with heat and contract with cold for pipeline.
Background technology
The structure of sleeve expansion joint generally comprises outer barrel, the inner cylinder stretched in outer barrel, is provided between outer barrel and inner cylinder close
Packing material, baffle ring is provided with the side of airtight and watertight padding, is provided with gland in the opposite side of airtight and watertight padding, baffle ring is fixed in the middle part of outer barrel
Inwall on, gland applies pressure to airtight and watertight padding to be made airtight and watertight padding radially uphold with outer barrel and inner cylinder to be close to.Its deficiency
Be in, the airtight and watertight padding and compactness that outer barrel and inner cylinder are affixed close to baffle ring opening position are minimum, and at this at first by
Fluid（Fluid in sleeve expansion joint has certain pressure）Etch, easily decline sealing property.It is therefore desirable to carry out
Improve.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of floating sealed sleeve expansion joint, and it can effectively prevent
Only sealing property declines.
The technical solution of the utility model is a kind of floating sealed sleeve expansion joint, and it includes inner cylinder 1, around inner cylinder
Airtight and watertight padding 3, it is characterized in that, the excircle part of airtight and watertight padding is covered by a sleeve 2, the end face of the inward flange of sleeve left end
It is affixed with the left surface of airtight and watertight padding, the internal diameter of inward flange is engaged with the external diameter of inner cylinder, is cased with the right station of inner cylinder outer
Cylinder 4, outer barrel left end is stretched in sleeve, and the left side of outer barrel and the right flank of airtight and watertight padding are affixed, and are extended in the left end of sleeve
One outward flange 8, outer barrel it is cylindrical on be welded with a flange 5, multiple bolts 6 pass through outward flange and flange, pass through bolt both ends
Nut airtight and watertight padding is compressed.
The characteristics of the utility model is to be pressed by sleeve and outer barrel to the both sides of airtight and watertight padding, makes airtight and watertight padding and set
Contact of the cylinder with inner cylinder is uniformly, closely；Compared with prior art, in this sleeve expansion joint, airtight and watertight padding right pressure obtains
Improve, airtight and watertight padding right part resist fluids etch ability is strengthened, and effectively prevent the decline of sealing property.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Accompanying drawing mark represents respectively：1- inner cylinders, 2- sleeves, 3- airtight and watertight paddings, 4- outer barrels, 5- flanges, 6- bolts, 7- bullets
Spring, 8- outward flanges.
Embodiment
In conjunction with brief description of the drawings specific embodiment of the present utility model.
A kind of floating sealed sleeve expansion joint, it includes inner cylinder 1, the airtight and watertight padding 3 around inner cylinder, and airtight and watertight padding is stone
Ink material, the excircle part of airtight and watertight padding are covered by a sleeve 2, the end face of sleeve left end inward flange and the left side of airtight and watertight padding
Face is affixed, and the internal diameter of inward flange is engaged with the external diameter of inner cylinder, is cased with outer barrel 4 in the right station of inner cylinder, outer barrel left end is stretched
In sleeve, the left side of outer barrel and the right flank of airtight and watertight padding are affixed, and extend an outward flange 8 in the left end of sleeve, in outer barrel
It is cylindrical on be welded with a flange 5, multiple bolts 6 pass through outward flange and flange, and sleeve and outer barrel can be made by twisting bolt top nut
Move towards, the left side of inward flange and outer barrel compresses airtight and watertight padding.
The left end of inner cylinder and the right-hand member of outer barrel are connected with seal for pipe joints respectively during use, when pipeline expands with heat and contract with cold inner cylinder with it is outer
Cylinder produces the stress of relative movement extraction duct.
Friction is produced when inner cylinder moves between meeting and airtight and watertight padding, airtight and watertight padding can be worn, is cased with for this on bolt
Spring 7, for spring between flange and nut, spring can store energy after being compacted, and after airtight and watertight padding is worn, spring is released
Exoergic amount, appointing airtight and watertight padding can reliably be compressed, and keep sealing.
Claims (2)
1. a kind of floating sealed sleeve expansion joint, it includes inner cylinder（1）, around the airtight and watertight padding of inner cylinder（3）, it is characterized in that,
The excircle part of airtight and watertight padding is by a sleeve（2）Covered, the end face of the inward flange of sleeve left end and the left surface of airtight and watertight padding
It is affixed, the internal diameter of inward flange is engaged with the external diameter of inner cylinder, and outer barrel is cased with the right station of inner cylinder（4）, outer barrel left end stretches
In sleeve, the left side of outer barrel and the right flank of airtight and watertight padding are affixed, and extend an outward flange in the left end of sleeve（8）, outside
Cylinder it is cylindrical on be welded with a flange（5）, multiple bolts（6）It will be sealed by the nut at bolt both ends through outward flange and flange
Filler compresses.
2. a kind of floating sealed sleeve expansion joint according to claim 1, it is characterized in that, spring is also cased with bolt
（7）, spring is between flange and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465095.3U CN206694721U (en) | 2017-04-28 | 2017-04-28 | Floating sealed sleeve expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720465095.3U CN206694721U (en) | 2017-04-28 | 2017-04-28 | Floating sealed sleeve expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694721U true CN206694721U (en) | 2017-12-01 |
Family
ID=60447676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720465095.3U Active CN206694721U (en) | 2017-04-28 | 2017-04-28 | Floating sealed sleeve expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206694721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218465A (en) * | 2017-08-04 | 2017-09-29 | 高玉琴 | Floating sealed whirl compensator |
-
2017
- 2017-04-28 CN CN201720465095.3U patent/CN206694721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218465A (en) * | 2017-08-04 | 2017-09-29 | 高玉琴 | Floating sealed whirl compensator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |