CN2918946Y - Pulling-off preventing oil-sealed tube universal expansion device - Google Patents
Pulling-off preventing oil-sealed tube universal expansion device Download PDFInfo
- Publication number
- CN2918946Y CN2918946Y CN 200620032294 CN200620032294U CN2918946Y CN 2918946 Y CN2918946 Y CN 2918946Y CN 200620032294 CN200620032294 CN 200620032294 CN 200620032294 U CN200620032294 U CN 200620032294U CN 2918946 Y CN2918946 Y CN 2918946Y
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- China
- Prior art keywords
- slip
- flange
- stationary housing
- sealing
- pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a universal expansion piece for a pull-off prevention oil sealing pipe line. A core pipe consists of a ball pipe and a column pipe. A ball rotation unit consists of a ball pipe, a fixing case and a pressed flange with a sealed hollow cavity. The hollow cavity has a sealing ring and oil sealing fillings. The center of the external wall has an oiling opening and a sealing nut. The column, fixing case and pressed flange form a straight line movement unit and a sealed hollow cavity. The hollow cavity has seal ring and oil sealing fillings. The center of the external wall has oiling opening and sealing nut. The seal ring is made of asbestos tray or polytetrafluoroethylene, the sealing filling material is soft black lead. A pull-off prevention device is arranged between the case and core pipe. The utility model can realize the universal compensation and axial compensation. The model adopts the oiling sealing with good performance, and is easy to install and maintain with pull-off prevention function, thereby playing a good compensation function for the pipe line damage caused by the extension or sinking occurred during the long distance pipe laying.
Description
One. technical field: the utility model relates to a kind of pipeline compensator, particularly relates to a kind of anti-slip universal expansion joint for oil seal pipeline.
Two. background technique: pipeline compensator is an imperative equipment during national pipe network is laid; present domestic main employing bushing type expansion bend; according to the concrete structure difference; the bushing type expansion bend that has is merely able to realize axial rising-heat contracting-cold compensation; the spherical compensator that has is merely able to realize angle compensation; but; their ubiquitous defectives are: reveal easily; the Maintenance and Repair workload is big; when amount of leakage needs repairing greatly, need to shut down, stop work so very big terminal use that influences; and long in time limit, the maintenance cost height.And existing pipeline compensator is not provided with anti-pull off body, when compensation rate is excessive, causes sleeve pipe and core pipe to break away from, and forms big leakage, needs shutdown maintenance, causes bigger loss.
Three. the model utility content:
The purpose of this utility model: overcome the defective of prior art, the anti-slip universal expansion joint for oil seal pipeline that a kind of good sealing effect is provided, is easy to installation and maintenance, integrates angle compensation and nose balance and have the anti-slip function.
The technical solution of the utility model: a kind of anti-slip universal expansion joint for oil seal pipeline, contain a core pipe and two stationary housings, and the two ends of core pipe are set in two stationary housings, be provided with seal arrangement between core pipe and the stationary housing, described core pipe partly is made up of spheroid tubular portion and cylindrical tube, and the outer spherical surface two ends of spheroid tubular portion respectively with this end stationary housing inwall on and on the supported flange inwall sphere that is provided be complementary, this end supported flange is connected with this end stationary housing by bolt, the spheroid tubular portion is fixed, and the spheroid tubular portion can freely be turned an angle, realize universal compensation, this end supported flange, the outer spherical surface middle part of stationary housing inwall and spheroid tubular portion forms a closed cavity, the two ends of cavity are respectively arranged with a seal ring, enough stuffing box packing are injected at the middle part of cavity, and its outer wall is provided with the oil hole and the sealing bolt of some; The external diameter of described cylindrical tube part and the bulge loop internal diameter on this end stationary housing inwall are complementary, to realize nose balance, and should be connected with this end supported flange by bolt by the end stationary housing, the outer surface of this end stationary housing and bulge loop, this end supported flange, cylindrical tube part forms a closed cavity, the two ends of cavity are respectively arranged with a seal ring, enough stuffing box packing are injected at the middle part of cavity, and its outer wall is provided with the oil hole and the sealing bolt of some; The cylindrical tube part of described core pipe is provided with an anti-slip flange near the outer surface of an end of spheroid tubular portion, the anti-slip flange is provided with the anti-slip bar of some, the other end of described anti-slip bar runs through the supported flange and the stationary housing of suit cylindrical tube part, and its end is provided with position-limit mechanism, to limit supported flange and the free-moving vertically distance of stationary housing.
The two ends of described anti-slip bar are respectively arranged with screw thread, and the tapped hole on one end and the anti-slip flange is complementary, and is provided with locking nut, and its other end and two nuts that are complementary spin, and two nuts screw mutually, as position-limit mechanism.
Perhaps, an end of described anti-slip bar is provided with screw thread, and the tapped hole on this end and the anti-slip flange is complementary, and is provided with locking nut, and its other end is provided with block, as position-limit mechanism.
Perhaps, an end of described anti-slip bar is welded on the anti-slip flange, and its other end is provided with screw thread, and this end screw thread and two nuts that are complementary spin, and two nuts screw mutually, as position-limit mechanism.
Described anti-slip bar circumferentially, and is and on the anti-slip flange between the adjacent hold-down bolt on the stationary housing flange, spaced apart with hold-down bolt; Described oil hole circumferentially, and on the set casing body wall between the adjacent hold-down bolt on the stationary housing flange; Described seal ring is asbestos packing or teflon, and described stuffing box packing is an Expanded graphite, and the angle [alpha] of described universal compensation is 0 °～15 °.
The beneficial effects of the utility model:
1. core pipe of the present utility model partly is made up of spheroid tubular portion and cylindrical tube, and the spheroid tubular portion forms sphere with this end stationary housing and supported flange and contacts, can realize universal angle compensation, the cylindrical tube part contacts with this end stationary housing and supported flange formation straight line in addition, can realize nose balance, eliminated because of installation, surface subsidence or the angle and the axial error that expand with heat and contract with cold and cause, guaranteed the normal use of pipeline.
2. the cylindrical tube part outer surface of the utility model core pipe is provided with an anti-slip flange; the anti-slip flange is provided with the anti-slip bar of some; the other end of described anti-slip bar runs through the supported flange and the stationary housing of suit cylindrical tube part; and its end is provided with position-limit mechanism; the joint of anti-slip bar and supported flange and stationary housing has certain clearance; can make the unrestricted motion vertically of supported flange and stationary housing like this; position-limit mechanism prevents that core pipe and this end supported flange and stationary housing break away from; make device structure more reasonable; practicality is more reliable, give pipeline remote lay because of cause flexible of the temperature difference and pass through the equipment that uneven settlement caused that the sedimentation area causes pull and play good anti-slip protective action.
3. the utility model sealing effect is good, adopts the oil-filling type sealing between core pipe and the stationary housing, promptly injects enough oil seal fillers in the cavity between sealed at both ends ring, has improved lubricity, has strengthened withstand voltage degree, increases sealing effect greatly.
4. core pipe of the present utility model is connected with stationary housing with bolt by supported flange, so installation and maintenance are convenient, reduce construction cost; be in operation in addition; in case occur revealing, need not shut down, can unclamp sealing bolt; directly in Seal cage, inject enough stuffing box packing; tighten sealing bolt again and get final product, thereby realize and on non-stop-machine basis, to keep in repair, save time, laborsaving, economical; convenient and swift, increase work efficiency greatly.
5. the utility model is widely used in electric power, heating power, boats and ships, oil, gas, water supply and sewerage pipeline, can also be widely used in the pipeline turning as turning joint, its compact structure, and mounting or dismounting are convenient, are easy to promote, and have good social and economic benefit.
6. the utility model integrates angle compensation and nose balance, and volume is little, in light weight, compensation rate is big, applied widely, the anti-slip device can adopt multiple mode of structure in addition, and is simple in structure, and cost is lower, how much the size of anti-slip bar, quantity are determined according to the size of inside nominal diameter and the size of extending amount, the anti-slip bar can adopt movable connection, is convenient to dismounting, uses very convenient.
Four. description of drawings:
Fig. 1 is the structural representation of anti-slip universal expansion joint for oil seal pipeline
Five. embodiment:
Embodiment one: referring to Fig. 1, among the figure, the core pipe 6 of anti-slip universal expansion joint for oil seal pipeline partly is made up of spheroid tubular portion and cylindrical tube, and the outer spherical surface two ends of spheroid tubular portion respectively with this end stationary housing 1 inwall on and on supported flange 5 inwalls sphere that is provided be complementary, this end supported flange 5 is connected with this end stationary housing 1 by bolt, the spheroid tubular portion is fixed, and the spheroid tubular portion can freely be turned an angle, realize universal compensation, its rotation angle α is 0 °～15 °, this end supported flange 5, the outer spherical surface middle part of stationary housing 1 inwall and spheroid tubular portion forms a closed cavity, the two ends of cavity are respectively arranged with a seal ring 2, enough stuffing box packing 3 are injected with portable injection molding machine in the middle part of cavity, and its outer wall is provided with the oil hole and the sealing bolt 4 of some; The external diameter of cylindrical tube part and the bulge loop internal diameter on this end stationary housing 14 inwalls are complementary, and should be connected with this end supported flange 8 by bolt by end stationary housing 14, the outer surface of this end stationary housing 14 and bulge loop, this end supported flange 8, cylindrical tube part forms a closed cavity, the two ends of cavity are respectively arranged with a seal ring 12, enough stuffing box packing 10 are injected with portable injection molding machine in the middle part of cavity, and its outer wall is provided with the oil hole and the sealing bolt 11 of some.
The outer surface of one end of the close spheroid tubular portion of cylindrical tube part of core pipe 6 is provided with an anti-slip flange 7, and (the two is integral structure, or be split-type structural, the two welds together), anti-slip flange 7 is provided with the anti-slip bar 9 of some, the other end of anti-slip bar 9 runs through the supported flange 8 and the stationary housing 14 of suit cylindrical tube part, and its end is provided with position-limit mechanism, to limit supported flange and the free-moving vertically distance of stationary housing.The two ends of anti-slip bar 9 are respectively arranged with screw thread, and the tapped hole on one end and the anti-slip flange 7 is complementary, and is provided with locking nut, and its other end and two nuts that are complementary 13 spin, and two nuts 13 screw mutually, as position-limit mechanism.Anti-slip bar 9 has certain clearance with the axis hole that runs through of supported flange 7 and stationary housing 14, can make supported flange 7 and stationary housing 14 unrestricted motion vertically like this, plays compensating action.
Oil hole and sealing bolt 4,11 circumferentially, and on the set casing body wall between the adjacent hold-down bolt on stationary housing 1,14 flanges.Seal ring 2 and 12 is asbestos packing or teflon, and stuffing box packing 3 and 10 is an Expanded graphite.Anti-slip bar 9 circumferentially, and is spaced apart with hold-down bolt and on the anti-slip flange 7 between the adjacent hold-down bolt on stationary housing 14 flanges, and its quantity is determined according to the size of equipment and the size of extending amount.
During use, stationary housing 1 is connected with the pipeline at two ends with the form that flange is connected respectively with stationary housing 14, because the spheroid tubular portion forms sphere and contacts with this end stationary housing 1, supported flange 5, therefore can realize universal angle compensation, the outer surface of cylindrical tube part and this end stationary housing 14, supported flange 8 constitute straight-line pair in addition, therefore can realize nose balance, use very convenient.Adopt this structure to be convenient to mounting or dismounting and maintenance, in case occur to reveal, directly the enough stuffing box packing of injection get final product in the Seal cage, can keep in repair on non-stop-machine basis, and are convenient and swift, increase work efficiency greatly.
Embodiment two: present embodiment and embodiment one are basic identical, and something in common does not repeat, and difference is: an end of anti-slip bar is provided with screw thread, tapped hole on this end and the anti-slip flange is complementary, and be provided with locking nut, its other end is provided with block, as position-limit mechanism.
Embodiment three: present embodiment and embodiment one are basic identical, something in common does not repeat, difference is: an end of described anti-slip bar is welded on the anti-slip flange, its the other end is provided with screw thread, this end screw thread and two nuts that are complementary spin, two nuts screw mutually, as position-limit mechanism.
Change the quantity of anti-slip bar, the concrete structure that changes position-limit mechanism and the Placement that changes between them and can form a plurality of embodiments, be the common excursion of the utility model, do not describe in detail one by one at this.
Claims (5)
1. anti-slip universal expansion joint for oil seal pipeline, contain a core pipe of partly forming by spheroid tubular portion and cylindrical tube, the spheroid tubular portion of core pipe forms sphere with a stationary housing and supported flange and contacts, realize universal compensation, and form a closed cavity between the three, these cavity two ends are provided with seal ring, the enough stuffing box packing of middle injection, and sealed cavity is provided with oil hole and sealing bolt; The cylindrical tube part of core pipe forms the cylndrical surface with another stationary housing and supported flange and contacts, and form a closed cavity between the three, these cavity two ends are provided with seal ring, the enough stuffing box packing of middle injection, sealed cavity is provided with oil hole and sealing bolt, to realize nose balance, it is characterized in that: the cylindrical tube part of described core pipe is provided with an anti-slip flange near the outer surface of an end of spheroid tubular portion, the anti-slip flange is provided with the anti-slip bar of some, the other end of described anti-slip bar runs through the supported flange and the stationary housing of suit cylindrical tube part, and its end is provided with position-limit mechanism, to limit supported flange and the free-moving vertically distance of stationary housing.
2. anti-slip universal expansion joint for oil seal pipeline according to claim 1, it is characterized in that: the two ends of described anti-slip bar are respectively arranged with screw thread, tapped hole on one end and the anti-slip flange is complementary, and be provided with locking nut, its the other end and two nuts that are complementary spin, two nuts screw mutually, as position-limit mechanism.
3. anti-slip universal expansion joint for oil seal pipeline according to claim 1, it is characterized in that: an end of described anti-slip bar is provided with screw thread, and the tapped hole on this end and the anti-slip flange is complementary, and is provided with locking nut, its the other end is provided with block, as position-limit mechanism.
4. anti-slip universal expansion joint for oil seal pipeline according to claim 1, it is characterized in that: an end of described anti-slip bar is welded on the anti-slip flange, and its other end is provided with screw thread, and this end screw thread and two nuts that are complementary spin, two nuts screw mutually, as position-limit mechanism.
5. according to the arbitrary described anti-slip universal expansion joint for oil seal pipeline of claim 1～4, it is characterized in that: described anti-slip bar circumferentially, and is and on the anti-slip flange between the adjacent hold-down bolt on the stationary housing flange, spaced apart with hold-down bolt; Described oil hole circumferentially, and on the set casing body wall between the adjacent hold-down bolt on the stationary housing flange; Described seal ring is asbestos packing or teflon, and described stuffing box packing is an Expanded graphite, and the angle [alpha] of described universal compensation is 0 °～15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032294 CN2918946Y (en) | 2006-06-12 | 2006-06-12 | Pulling-off preventing oil-sealed tube universal expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032294 CN2918946Y (en) | 2006-06-12 | 2006-06-12 | Pulling-off preventing oil-sealed tube universal expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918946Y true CN2918946Y (en) | 2007-07-04 |
Family
ID=38216764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620032294 Expired - Fee Related CN2918946Y (en) | 2006-06-12 | 2006-06-12 | Pulling-off preventing oil-sealed tube universal expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918946Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434738A (en) * | 2011-11-19 | 2012-05-02 | 江苏金童重机制造有限公司 | High-temperature sealing material and pipeline expansion piece adopting same |
| CN102537556A (en) * | 2011-12-27 | 2012-07-04 | 大连益多管道有限公司 | Double-supporting self-sealed rotating compensator |
| CN102537555A (en) * | 2011-12-22 | 2012-07-04 | 大连益多管道有限公司 | Anti-settling compensator |
| CN103822037A (en) * | 2014-03-18 | 2014-05-28 | 江苏鑫晟波纹管有限公司 | Multiple two-direction sleeve expansion joint |
| CN104989891A (en) * | 2015-07-10 | 2015-10-21 | 秦皇岛北方管业有限公司 | Leakproof oxygen lance cooling water metal hose long in service life |
| CN106812819A (en) * | 2017-03-07 | 2017-06-09 | 中核核电运行管理有限公司 | A kind of Universal drive connector |
| CN108087654A (en) * | 2017-11-23 | 2018-05-29 | 大唐湘潭发电有限责任公司 | A kind of pipe pressurized quick connector |
| CN113864561A (en) * | 2021-10-27 | 2021-12-31 | 铜陵天海流体控制股份有限公司 | Adjust convenient spacing compensation expansion bend |
-
2006
- 2006-06-12 CN CN 200620032294 patent/CN2918946Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434738A (en) * | 2011-11-19 | 2012-05-02 | 江苏金童重机制造有限公司 | High-temperature sealing material and pipeline expansion piece adopting same |
| CN102537555A (en) * | 2011-12-22 | 2012-07-04 | 大连益多管道有限公司 | Anti-settling compensator |
| CN102537556A (en) * | 2011-12-27 | 2012-07-04 | 大连益多管道有限公司 | Double-supporting self-sealed rotating compensator |
| CN103822037A (en) * | 2014-03-18 | 2014-05-28 | 江苏鑫晟波纹管有限公司 | Multiple two-direction sleeve expansion joint |
| CN104989891A (en) * | 2015-07-10 | 2015-10-21 | 秦皇岛北方管业有限公司 | Leakproof oxygen lance cooling water metal hose long in service life |
| CN106812819A (en) * | 2017-03-07 | 2017-06-09 | 中核核电运行管理有限公司 | A kind of Universal drive connector |
| CN106812819B (en) * | 2017-03-07 | 2023-08-15 | 中核核电运行管理有限公司 | Universal transmission connecting piece |
| CN108087654A (en) * | 2017-11-23 | 2018-05-29 | 大唐湘潭发电有限责任公司 | A kind of pipe pressurized quick connector |
| CN113864561A (en) * | 2021-10-27 | 2021-12-31 | 铜陵天海流体控制股份有限公司 | Adjust convenient spacing compensation expansion bend |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 Termination date: 20110612 |