CN2539045Y - Sealed bellows expansion joint with auxiliary replaceable filling - Google Patents
Sealed bellows expansion joint with auxiliary replaceable filling Download PDFInfo
- Publication number
- CN2539045Y CN2539045Y CN 01254712 CN01254712U CN2539045Y CN 2539045 Y CN2539045 Y CN 2539045Y CN 01254712 CN01254712 CN 01254712 CN 01254712 U CN01254712 U CN 01254712U CN 2539045 Y CN2539045 Y CN 2539045Y
- Authority
- CN
- China
- Prior art keywords
- ring
- steel pipe
- filler
- seat ring
- bellows
- 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
Links
Abstract
The utility model relates to a corrugated expansion joint with replaceable filler and a double leakage preventing function. Both ends of a corrugated pipe (3) are fixedly connected with an upstream and a downstream steel pipes (1, 13), the inner wall of the upstream steel pipe (1) is fixedly connected with one end of a guide flow cylinder (2), and the outer wall is fixedly connected with an outer sleeve assembly (4) and a spacing ring (5); an opening end of the outer sleeve assembly (4) is fixedly connected with a compacting seat ring (6) which is uniformly provided with 8 to 80 bolt holes along the circumferential direction, and the compacting seat ring (4) is fixedly connected with a filler sleeve (9); a gap formed by the compacting seat ring (6), the filler sleeve (9), and the downstream steel pipe (13) are orderly provided with filler (7) and a pressing ring (8), and the pressing ring is fixedly connected with a compacting pressing ring flange (20) which is parallel with the compacting seat ring (6) and is provided with bolt holes; the inner parts of the bolt holes are orderly provided with compacting bolts (11), screw nuts (10) and anti-loosing rings (18). The utility model has two sealing barriers, the second ring filler can be disassembled for replacement, and the leak safe reliability is greatly improved. The utility model is particularly suitable for ground exposed pipes having high safe operation requirements or occasions of which the filler needs maintaining and replacing.
Description
Technical field
The utility model relates to a kind of compensation protective gear-bellows expansion joint of hydrodynamic pressure pipeline, specifically is meant the bellows expansion joint of the dual anti-leak of a kind of energy, and can pull down replacing during the second road filler ageing failure of this expansion joint.
Background technique
Bellows expansion joint claims " corrugated expansion joint " or " Bellows expansion joint " again, is to be used to solve the problem that easily causes damage when pipeline is subjected to temperature variation or geology variation generation displacement.Adopt expansion joint that pipeline is compensated protection, can make pipeline avoid the damage that causes because of above-mentioned reason.Therefore use very general in every profession and trade.
Existing bellows expansion joint is by the upstream and downstream steel pipe, and bellows that connects in the middle of the steel pipe and guide shell composition.Leak if damaging appears in the joint of bellows itself or bellows and steel pipe, whole expansion joint lapses.A kind of bellows expansion joint with outer jointing jacket structure; because the effect of protecting jacket mainly is to prevent that external impacts from directly causing damage to bellows; and leak for the damage of bellows itself or bellows and the appearance of steel pipe joint, outer jointing jacket does not stop the effect of leakage.
Summary of the invention
The purpose of this utility model is: design a kind of joint at bellows itself or bellows and steel pipe and occur or have an accident when damaging, still can prevent the bellows expansion joint that leaks, the further purpose of the utility model is, can be by changing the filler accident of stopping a leak even take place to leak also.
Above-mentioned purpose is to realize by increased additional packing seal structure on bellows expansion joint.Should additional packing seal structure can set up the second road sealing barrier, and reach the purpose that stops fluid to leak, thereby when bellows was damaged, expansion joint can be worked effectively normally still expansion joint.Simultaneously, when this additional filler damages, can guarantee normal operation by changing filler.The utility model comprises upstream and downstream steel pipe, guide shell, bellows, outer sleeve assembly, limited ring, position limit socket.The bellows two ends are affixed with upstream steel pipe and downstream steel pipe respectively.One end of guide shell and the inwall of upstream steel pipe are affixed.The upstream outer wall of steel pipe is connected with the outer sleeve assembly; That end of the nearly bellows of downstream outer wall of steel pipe is connected with limited ring.Its structure outline is: be connected with on the open end of sleeve assembly outside and compress seat ring, compress on the circumference of seat ring and offer 8-80 bolt hole equably.Be consolidated with it vertical, parallel filler sleeve on the seat ring compressing with the downstream steel pipe.In compressing the space that constitutes between seat ring, filler sleeve and the downstream outer wall of steel pipe filler and trim ring are housed successively, the sectional shape of trim ring is the T font, is connected with the trim ring flange on the trim ring.The identical bolt hole of bolt hole on also evenly offering quantity, size, position on the trim ring flange and compressing seat ring.Compress in the bolt hole of seat ring and trim ring flange hold-down bolt and nut are housed.Also be provided with anti-loose ring before the nut.By tightening hold-down bolt, make filler be close to the outer wall of downstream steel pipe, guarantee that medium can not leak in the pipe from the second road packing seal barrier of forming thus.Simultaneously, in case the second road sealing barrier damages, turn on hold-down bolt and just be easy to carry out more changing jobs of filler.
The utlity model has following advantage:
1, because the utility model has adopted additional packing seal structure, whole expansion joint has 2 road sealing barriers, the 1st road is sealed into sylphon seal, the 2nd road is sealed into packing seal, therefore the leakage safety reliability of whole expansion joint has improved greatly, is specially adapted to the use occasion that those are had relatively high expectations to security of operation.
2, because the utility model has structurally made full use of the original structure part of normal tape outer jointing jacket bellows expansion joint; the filler baffle ring of additional filler sealing, compress seat ring etc. and also respectively outer sleeve has been played reinforing function, so the utility model is simple in structure, reasonable in design, effect is obvious.
3. owing to can overhauling and change after the filler installation of the present utility model, therefore applied widely, be particularly suitable for the use occasion that ground exposed conduit or filler need be changed.
Description of drawings
Fig. 1 is an A-A longitudinal profile structural representation of the present utility model;
Fig. 2 is a form structure schematic representation of the present utility model;
Embodiment
See also accompanying drawing 1, accompanying drawing 2.The utility model by upstream steel pipe 1, guide shell 2, bellows 3, outer sleeve assembly 4, limited ring 5, compress seat ring 6, filler 7, trim ring 8, filler sleeve 9, nut 10, hold-down bolt 11, trim ring flange stiffening plate 12, downstream steel pipe 13, receiver stiffening plate 14, receiver 15, sleeve body 16, compress seat ring stiffening plate 17, anti-loose ring 18, filler sleeve stiffening plate 19, trim ring flange 20 form.The two ends of bellows 3 are affixed with upstream steel pipe 1 and downstream steel pipe 13 respectively.One end of the inwall of upstream steel pipe 1 and guide shell 2 is fixed.The outer wall of upstream steel pipe 1 is connected with outer sleeve assembly 4.Outer sleeve assembly 4 is made up of receiver stiffening plate 14, receiver 15, sleeve body 16.Sleeve body 16 opening ends are connected with and compress seat ring 6.On the circumference that compresses seat ring 6, offer 8-80 bolt hole equably, be consolidated with the filler sleeve 96 vertical, parallel on the seat ring 6 compressing with downstream steel pipe 13 with compressing seat ring.In the space that compresses seat ring 6, filler sleeve 9 and downstream steel pipe 13 formations, filler 7 and trim ring 8 are housed successively.The sectional shape of filler 7 is circle or rectangle, and filler 7 adopts long and sealability elastic filling material preferably of life-span usually, as rubber, hydro-expansive rubber, teflon asbestos packing etc.The sectional shape of trim ring 8 is the T font.Be connected with the trim ring flange 20 parallel on the trim ring 8 with compressing seat ring 6.Also evenly offer quantity, size, position on the trim ring flange 20 and compress the identical bolt hole of offering on the seat ring 6 of bolt hole.Assembling hold-down bolt 11 and nut 10 in the bolt hole.Also be provided with anti-loose ring 18 before the nut 10.The material of anti-loose ring 18 adopts nylon usually.By tightening hold-down bolt 11, make filler 7 be close to the outer wall of downstream steel pipe 13, guarantee that medium can not leak in the pipe from the second road packing seal barrier of forming thus.Simultaneously, in case the second road sealing barrier damages, turn on hold-down bolt 11 and just be easy to carry out more changing jobs of filler 7.That end of the nearly bellows 3 of downstream steel pipe 13 outer walls is connected with the limited ring 5 of restriction bellows 3 axial compression.Receiver stiffening plate 14, compress seat ring stiffening plate 17, filler sleeve stiffening plate 19, trim ring flange stiffening plate 12 and all be uniformly distributed along the circumference, wherein receiver stiffening plate 14 is the 4-64 piece, compresses seat ring stiffening plate 17, filler sleeve stiffening plate 19, trim ring flange stiffening plate 12 and is the 8-80 piece.
Have flexible encapsulation boundary and form the first road wiper seal barrier because the utility model has been made up of upstream steel pipe 1, bellows 3 and downstream steel pipe 13, the flexible encapsulation boundary of being made up of upstream steel pipe 1, outer sleeve assembly 4, compacted filler 7 and downstream steel pipe 13 that has forms the second road wiper seal barrier.Therefore, under normal operating condition, the first road sylphon seal puts into operation, the second road packing seal is as standby, when the first road sylphon seal under the abnormal conditions damaged inefficacy, generation leakage, the second road packing seal put into operation automatically, plays the effect that stops escape of liquid.Before operation, must tighten each hold-down bolt 11, make trim ring 8 compress filler 7, filler 7 is close to stay trip steel pipe 13 outer walls, realize eliminating the gap and prevent the purpose of leaking.On nut 10, be embedded with the anti-loose ring 18 of nylon, when moving, get loose automatically to prevent hold-down bolt 11.
Claims (2)
1. the bellows expansion joint of replaceable additional filler sealing comprises upstream steel pipe (1), downstream steel pipe (13), guide shell (2), bellows (3), outer sleeve assembly (4), limited ring (5); Bellows (3) two ends are affixed with upstream steel pipe (1) and downstream steel pipe (13) respectively, one end of the inwall of upstream steel pipe (1) and guide shell (2) is affixed, upstream steel pipe (1) outer wall is connected with outer sleeve assembly (4), that end of the nearly bellows of downstream steel pipe (13) outer wall (3) is connected with limited ring (5), it is characterized in that: the opening end of outer sleeve assembly (4) is connected with and compresses seat ring (6), along the circumferential direction evenly offers 8-80 bolt hole on the seat ring (6) compressing; Be consolidated with the filler sleeve (9) vertical, parallel on the seat ring (6) compressing with downstream steel pipe (13) with compressing seat ring (6); In the space that compresses seat ring (6), filler sleeve (9) and downstream steel pipe (13) formation, filler (7) and trim ring (8) are housed successively; The sectional shape of trim ring (8) is the T font, is connected with the trim ring flange (20) parallel with compressing seat ring (6) on the trim ring (8); Also evenly offer quantity, size, position on the trim ring flange (20) and compress the identical bolt hole of offering on the seat ring (6) of bolt hole; Be equipped with hold-down bolt (11) and nut (10) in the bolt hole; The preceding anti-loose ring (18) that also is provided with of nut (10).
2. the bellows expansion joint of additional filler sealing according to claim 1 is characterized in that: described filler (7) adopts rubber, hydro-expansive rubber, teflon asbestos packing, and its sectional shape is circle or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254712 CN2539045Y (en) | 2001-11-15 | 2001-11-15 | Sealed bellows expansion joint with auxiliary replaceable filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01254712 CN2539045Y (en) | 2001-11-15 | 2001-11-15 | Sealed bellows expansion joint with auxiliary replaceable filling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2539045Y true CN2539045Y (en) | 2003-03-05 |
Family
ID=33663977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01254712 Expired - Fee Related CN2539045Y (en) | 2001-11-15 | 2001-11-15 | Sealed bellows expansion joint with auxiliary replaceable filling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2539045Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470900A (en) * | 2013-08-30 | 2013-12-25 | 江苏新方圆电气设备制造有限公司 | Rectangular expansion joint |
| CN112728264A (en) * | 2020-12-31 | 2021-04-30 | 辽宁希泰科技有限公司 | Mechanical sealing device for corrugated pipe |
| CN113833924A (en) * | 2021-10-27 | 2021-12-24 | 南京晨光东螺波纹管有限公司 | Double water seal expansion joint |
-
2001
- 2001-11-15 CN CN 01254712 patent/CN2539045Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470900A (en) * | 2013-08-30 | 2013-12-25 | 江苏新方圆电气设备制造有限公司 | Rectangular expansion joint |
| CN103470900B (en) * | 2013-08-30 | 2016-03-02 | 江苏新方圆电气设备制造有限公司 | Rectangular expansion joint |
| CN112728264A (en) * | 2020-12-31 | 2021-04-30 | 辽宁希泰科技有限公司 | Mechanical sealing device for corrugated pipe |
| CN112728264B (en) * | 2020-12-31 | 2021-07-30 | 辽宁希泰科技有限公司 | Mechanical sealing device for corrugated pipe |
| CN113833924A (en) * | 2021-10-27 | 2021-12-24 | 南京晨光东螺波纹管有限公司 | Double water seal expansion joint |
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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 |