CN2133743Y - Spring close expansion unit - Google Patents
Spring close expansion unit Download PDFInfo
- Publication number
- CN2133743Y CN2133743Y CN 92211563 CN92211563U CN2133743Y CN 2133743 Y CN2133743 Y CN 2133743Y CN 92211563 CN92211563 CN 92211563 CN 92211563 U CN92211563 U CN 92211563U CN 2133743 Y CN2133743 Y CN 2133743Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- dish
- inner sleeve
- spring close
- wall
- 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
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Abstract
The utility model belongs to a spring close expansion device. In an ordinary compensating device which has the disadvantages of large occupation area and huge investment, the sealing fillers are easy to aging under high temperature and high pressure; when a pipeline suffers excess cooled shrinkage mass, a bushing in the pipeline is caused to slip, conveyed media overflow, and danger is generated. The purpose of the utility model is to manufacture the spring close expansion device which has the advantages of strong sealing performance, safety, simple structure, convenient construction and convenient repair. The spring close expansion device which is composed of 15 components can be used for pipeline design in electric power, petroleum, chemical industries, heat supply for a town, etc. at present.
Description
Usually the compensation device that is adopted, it is big to have floor space, and investment is many, and used stuffing box packing is at high temperature, and high pressure is easily aging down, catches a cold contour projector when excessive when pipeline, and its inner sleeve can cause slippage, and the medium that makes conveying is excessive and produce dangerous.Task of the present utility model is that a kind of sealability of manufacturing is strong; safe and reliable; simple in structure; the elastic packing expander easy to maintenance of constructing is the outer sleeve ［ 1 ］ that is equipped with a plurality of fixed card ［ 3 ］ by inwall, and outer wall is equipped with that ［ 5 ］ are put in the inner sleeve ［ 2 ］ of a plurality of castellated anticreep cards 11 and fixed strain dish ［ 4 ］, protection, movable several parts of tension dish ［ 6 ］, bolt ［ 7 ］, pallet ［ 12 ］, elastic seal packing ［ 13 ］, sealing gland ［ 14 ］, pressure spring ［ 15 ］ are formed.Be applicable to temperature≤350 ℃, pressure≤4.0MPa, can be widely used on the piping design such as electronics, oil, chemical industry, urban heating at present.
［ 15 devices are between sealing gland ［ 14 ］ and movable tension dish ［ 6 ］ for said pressure spring, the purpose of design pressure spring, it is the internal pressure of utilizing pressing force of the spring and pipeline internal medium self, at this moment backpressure permanent action is on high temperature resistant elastic seal packing, pipeline is slided because of repetitiousness expands cause that the loosening leakage problem that produces of stuffing box packing is resolved, and obtains sealing reliably and with long-term.
Form a closed chamber between described pallet ［ 12 ］ and the sealing gland, dose elastic seal packing therebetween.The purpose of design flexibility stuffing box packing ［ 13 ］ makes it especially under high-temperature condition, good temperature resistance energy and the strong characteristics of sealing is arranged, and can increase the service life.
Said anticreep card ［ 11 ］ is welded in respectively on inner sleeve ［ 2 ］ and the outer sleeve ［ 1 ］ with fixed card ［ 3 ］, the purpose of design anticreep card ［ 11 ］, in case inner sleeve ［ 2 ］ slippage from outer sleeve 1 comes out, the medium that makes conveying is excessive and produce dangerous, safe and reliable.
Said safety cover ［ 5 ］ is that device is outside on the sleeve outer wall; with be located at activity tension dish on the inner sleeve outer wall outer and with bolt together with the fixed strain dish that installs on the sleeve outer wall outside; be fixed up; the purpose of design protection cover ［ 5 ］; to being placed on the whole parts on the inner sleeve, play protection, insulation, waterproof and effect attractive in appearance.
Description of drawings and embodiment:
Accompanying drawing is an elastic packing expander schematic representation
Embodiment:
The critical piece of elastic packing expander comprises:
Be equipped with a plurality of fixed card ［ 3 ］ on outer sleeve ［ 1 ］ inwall; be equipped with a plurality of castellated anticreep cards ［ 11 ］ on inner sleeve ［ 2 ］ outer wall; in; pallet ［ 12 ］ is housed between the outer sleeve; pallet ［ 12 ］ one sides are provided with elastic seal packing ［ 13 ］; elasticity is sealed close filler ［ 13 ］ one sides and is provided with envelope close gland ［ 14 ］; seal close gland ［ 14 ］ one sides and be provided with pressure spring ［ 15 ］; pressure spring ［ 15 ］ one sides are provided with the activity tension dish ［ 6 ］ of device on the inner sleeve outer wall; it is concentric to have the hole of opening on a hole and the fixed strain dish ［ 4 ］ that installs on the sleeve outer wall outside on this dish; fix by bolt ［ 7 ］, be equipped with safety cover ［ 5 ］ on this part.
Claims (5)
1, a kind of elastic packing expander that comprises tension dish, inner sleeve, outer sleeve, bolt and stuffing box packing etc.; it is characterized in that being equipped with the outer sleeve [1] of a plurality of fixed card [3] by inwall; outer wall is equipped with the inner sleeve [2] and the fixed strain dish [4] of a plurality of castellated anticreep cards [11]; safety cover [5], movable tension dish [6], bolt [7]; pallet [12]; elastic seal packing [13], sealing gland [14] and pressure spring [15], several parts are formed.
2,, it is characterized in that said pressure spring ［ 15 ］ device is between sealing gland ［ 14 ］ and movable tension dish ［ 6 ］ according to the described a kind of elastic packing expander of claim 1.
3, according to the described a kind of elastic packing expander of claim 1, it is characterized in that said elastic seal packing ［ 13 ］ is a device on inner sleeve ［ 2 ］ outer wall and on the inwall of outer sleeve ［ 1 ］ and a side has pallet, opposite side has between the sealing gland.
4,, it is characterized in that said anticreep card (11) and fixed card (3) install respectively on inner sleeve (2) and outer sleeve (1), in case inner sleeve (2) slippage from outer sleeve (1) is come out according to the described a kind of elastic packing expander of claim 1.
5,, it is characterized in that said safety cover (5) is that device coils a side with the activity tension that is located on the inner sleeve outer wall on the sleeve outer wall outside according to the described a kind of elastic packing expander of claim 1.Be fixed up together with the fixed strain dish that installs on the sleeve outer wall outside with bolt.The hole of opening on the hole of opening on the fixed strain dish and the movable tension dish is concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211563 CN2133743Y (en) | 1992-04-08 | 1992-04-08 | Spring close expansion unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211563 CN2133743Y (en) | 1992-04-08 | 1992-04-08 | Spring close expansion unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2133743Y true CN2133743Y (en) | 1993-05-19 |
Family
ID=33763190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92211563 Expired - Fee Related CN2133743Y (en) | 1992-04-08 | 1992-04-08 | Spring close expansion unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2133743Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291995A (en) * | 2013-05-22 | 2013-09-11 | 江苏新中环保股份有限公司 | Extensible ventilating valve |
-
1992
- 1992-04-08 CN CN 92211563 patent/CN2133743Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291995A (en) * | 2013-05-22 | 2013-09-11 | 江苏新中环保股份有限公司 | Extensible ventilating valve |
| CN103291995B (en) * | 2013-05-22 | 2016-02-03 | 江苏新中环保股份有限公司 | A kind of scalable Ventilating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |