CN2149536Y - Sleeve type telescopic device - Google Patents
Sleeve type telescopic device Download PDFInfo
- Publication number
- CN2149536Y CN2149536Y CN 93238283 CN93238283U CN2149536Y CN 2149536 Y CN2149536 Y CN 2149536Y CN 93238283 CN93238283 CN 93238283 CN 93238283 U CN93238283 U CN 93238283U CN 2149536 Y CN2149536 Y CN 2149536Y
- Authority
- CN
- China
- Prior art keywords
- expansion bend
- bushing type
- type expansion
- gland
- sleeve type
- 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
- 210000004907 gland Anatomy 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000945 filler Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Chemical group 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides an improvement scheme of bushing type expansion bend, it mainly comprises endotheca, overcoat, gland and triangle-shaped seal groove, is applicable to pressure fluid conveying pipeline installation engineering such as water supply, air feed, has overcome the bulky that current bushing type expansion bend exists, and sealing performance is relatively poor and unstable, and life is not long, defects such as operating pressure is less.
Description
The utility model belongs to engineering element and parts, the new casing formula expansion bend of a kind ofly be used to supply water, air feed equal pressure fluid delivery pipeline being installed.
No matter existing all kinds of bushing type expansion bends are cast iron, cast copper or steel part, no matter adopt which kind of sealing material, and its sealed groove (6) is all used rectangle groove, fills with filler in the groove.Its pressured lid (5) makes it to produce radial elastic deformation with the filler axial compression, produces contact pressure and reaches sealing with inside and outside cover (1), (7).In order to obtain enough radial pressures, must increase filler size, thereby certainly will increase the expansion bend volume, also squeeze bad filler easily, influence sealability and life-span, again because the size of gland pressure, feel to grasp with the workman entirely, thereby the sealability instability, effect is also bad in the use, can only be used for the pipeline of working pressure less than 1Ma.
The purpose of this utility model is a kind of new casing formula expansion bend of design, make its have sealing tight reliable, withstand voltage higher, volume is less, advantage such as easy for installation.
The purpose of this utility model realizes with the design proposal of following bushing type expansion bend, it mainly improves the sealed groove of existing bushing type expansion bend, change former rectangle groove into vee gutter, embedded rubber seal, it presses to seal ring the inner conical surface of overcoat (7) vertically by gland (5), thereby seal ring is produced a radial component, it is pressed on interior cover (1) goes up the formation sealing.
Fig. 1 is the utility model structural representation and embodiment;
Fig. 2 is existing unidirectional bushing type expansion bend schematic representation.
Cover in the 1--, 2,3,4--nut, packing ring, bolt, 5--gland, 6--sealed groove, 7--overcoat, 8--sleeve pipe.
Among the embodiment, with 0 a shape seal ring that diameter of section is little, design the size of suitable triangular groove (6) according to 0 shape ring cross-section diameter, O shape circle is embedded groove, axial position under gland (5) working state just is determined, the amount of deformation of 0 shape circle is also just certain, and sealability is just very stable, is not subjected to the influence of workman's skilled operation degree fully.Under the not too big situation of gland axial pressure, just can obtain good sealing effect, qualified through the 4Ma hydrostatic test and air tightness test.
The utility model has the advantages that existing sleeve type flexible joint volume is little, in light weight, material consumption is few, cost is low, easy construction, sealing property be reliable and stable.
Claims (1)
1, a kind of bushing type expansion bend is made up of interior cover, overcoat, gland, sealed groove and seal ring, it is characterized in that: sealed groove is a triangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238283 CN2149536Y (en) | 1993-03-05 | 1993-03-05 | Sleeve type telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238283 CN2149536Y (en) | 1993-03-05 | 1993-03-05 | Sleeve type telescopic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2149536Y true CN2149536Y (en) | 1993-12-15 |
Family
ID=33813049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93238283 Expired - Fee Related CN2149536Y (en) | 1993-03-05 | 1993-03-05 | Sleeve type telescopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2149536Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563258A (en) * | 2011-12-29 | 2012-07-11 | 大连益多管道有限公司 | Sleeve expansion piece |
-
1993
- 1993-03-05 CN CN 93238283 patent/CN2149536Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563258A (en) * | 2011-12-29 | 2012-07-11 | 大连益多管道有限公司 | Sleeve expansion piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2926698Y (en) | Fixed membrane metal sealed spherical valve | |
| CN2149536Y (en) | Sleeve type telescopic device | |
| CN2049302U (en) | Casing telescopic device | |
| CN2151340Y (en) | Dual safety casing tube adjusting connector | |
| CN2627293Y (en) | Fluorine lining plastic corrugated tube total sealed-regulating valve | |
| CN2482617Y (en) | Pipe compensator | |
| CN210106542U (en) | High-sealing underwater operation speed reducer | |
| CN2323231Y (en) | Expansion joint resisting corrosion in high chlorion concentration environment | |
| CN2329829Y (en) | Double sealing sleeve extending device | |
| CN2249339Y (en) | Corrugated pipe sealing device for valve | |
| CN201152278Y (en) | Micropressure labyrinth seal energy saving pump | |
| CN2281414Y (en) | Piezo acoustic transducer | |
| CN2227778Y (en) | Cross-linked polyethylene pipe joint | |
| CN2124367U (en) | Gray cast-iron pipe with mechanically connecting | |
| CN2451817Y (en) | Self-tightening endodynamic seal ring | |
| CN201034161Y (en) | Energy-saving type sealer | |
| CN2198426Y (en) | Liquid closing water pump shaft seal device | |
| CN2314215Y (en) | Corrugated compensator with sealing device | |
| CN2178810Y (en) | Combined sealing for pump | |
| CN2490391Y (en) | Expansion joint | |
| CN211039701U (en) | Intelligent high-pressure slurry pressure regulating valve | |
| CN2699074Y (en) | Contact rubber seal butterfly valve | |
| CN2257505Y (en) | Double-function bellows expansion joint | |
| CN2151328Y (en) | Water-saving tap | |
| CN215762189U (en) | Packing is with automatic tight device that expands |
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 |