CN204805783U - Fashioned socket joint formula interface in steel pipe both ends - Google Patents
Fashioned socket joint formula interface in steel pipe both ends Download PDFInfo
- Publication number
- CN204805783U CN204805783U CN201520252328.2U CN201520252328U CN204805783U CN 204805783 U CN204805783 U CN 204805783U CN 201520252328 U CN201520252328 U CN 201520252328U CN 204805783 U CN204805783 U CN 204805783U
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- steel pipe
- socket
- shaping
- wall thickness
- bell
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Abstract
The utility model provides a fashioned socket joint formula interface in steel pipe both ends, single seal with elastometic washer, steel pipe socket end is processed through rotatory roll -in, and the wall thickness adopts cold working when thin, adopts hot work to accomplish the slot shaping when wall thickness is great for place with fixed seal rubber circle, the steel pipe female end becomes the horn mouth through cold hole enlargement. Realize the water proofness and the resistance to pressure of pipeline.
Description
Technical field
The utility model patent is a kind of socket type pipeline Connecting format, can be used for the connection of aqueduct and other conveyance conduit.
Background technique
Before domestic various water conveyance steel tube bell sockets are not located due to (1) seal ring, (2) seal ring circumference can not ensure the compression ratio of uniformity, can not ensure sealability, its using effect is not good, is not promoted and applies.The utility model patent has the groove of shaping to fix for seal ring, and the groove shoulder of socket contacts with bellmouth, ensure that the compression of seal ring uniformity, thus ensure that the sealability of interface completely.
The method that the connection of current domestic buried steel pipe adopts field joint to weld usually, because water conveyance steel tube relative aperture is large, wall thickness is thin, and mouth of pipe rigidity is low, and ovality is large, causes steel pipe to dock difficulty.In addition, due to the restriction of pipe canal digging, it is large that pipe back welding connects operation easier.This docking mode work efficiency is low, and welding quality is difficult to ensure, the pipe explosion accident of a lot of water conveyance steel tube is all caused by weld seam.
The construction of urban water supply pipeline, is limited by excavation scope little, the requirement of short construction period, owing to there is no desirable spigot and socket type steel pipeline, much should adopt the place of steel pipeline, be forced to cylinder iron to manage or glass reinforced plastic sand pipe substitutes, limit steel pipe this field use.The utility model patent is by using novel processing mode and crucial structural design, and can solve spigot and socket type steel pipe cushion rubber in the past fixing loosely, water problem is leaked in pressure testing.
Because the steel pipe of same bore is managed a lot lightweight than cast iron tube and PCCP, factory process is more convenient laborsaving, saves cost.Because the ductility of steel pipe is higher, the aqueduct anti-seismic performance of this flexible interface is better.
Summary of the invention
The utility model patent is the Interface design of the quick socket joint in a kind of scene, single seal with elastometic washer, for water delivery steel pipe.
It is shaping that the utility model patent is that direct deformation is carried out at steel pipe two ends, and reach the shape (see accompanying drawing) of designing requirement.
The utility model patent is that steel pipe socket end is processed through rotating roll-in, adopts cold working, adopts hot working to complete ditch Slot shaping when wall thickness is larger, for placing and fixing seal rubber ring when wall thickness is thinner; Steel pipe female end is through cold expanding one-tenth horn mouth.
The utility model patent it is characterized in that the joint socket be formed processes on steel pipe body, be non-solder composition bell and spigot joint.
The DESIGNED FEATURE of the utility model patent is that socket inserts bellmouth gradually, centering voluntarily, until o-ring groove back porch on socket and mouthpiece horn contact internal walls.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model patent.
Shown in figure, 1 bellmouth, 2 sockets, 3 elastic seal rings by compression, 4 socket groove back porches (contacting with bellmouth during insertion), the 5 steel pipe bodies having neither part nor lot in distortion.
Embodiment
Steel pipe socket end rotates roll-in processing through pressure and (adopts cold working when wall thickness is thinner; Hot working is adopted when wall thickness is larger) complete ditch Slot shaping, for placing and fixing seal rubber ring;
Steel pipe female end is through cold expanding one-tenth horn mouth.Can be expanding by hydraulic press mould, also can be completed by hydraulic pressure expanding machine.
Socket texturing zone is uniformly distributed up and down along tube wall axis, and its design feature is controlling distortion scope of trying one's best, and makes distortion evenly, relatively easily shaping.
Caulking gum circumference is less than caliber girth by 20%, and its seal ring is fitted tightly in the groove of roll-in.During on-the-spot socket joint docking, can not occur to roll and displacement.After seal ring is in place, inserts below seal ring with blunt, circumferentially turn 2 circles, make seal ring degree of tightness consistent.
Socket inserts bellmouth gradually, until o-ring groove back porch on socket and mouthpiece horn contact internal walls.
The joint socket be formed processes on steel pipe body, is the bell and spigot joint of non-solder composition.
During field joint socket joint, socket and bellmouth need be cleaned out, and smear respectively with lubricant oil, are beneficial to insert.After docking puts in place, with clearance gauge circumferentially check seal ring whether in groove state intact.
During tube coupling abutting joint, certain angle can be deflected as required.
Claims (3)
1. the bell socket that steel pipe two ends are shaping, single seal with elastometic washer, steel pipe socket end, through rotating roll-in processing, adopts cold working when wall thickness is thinner, adopts hot working to complete ditch Slot shaping when wall thickness is larger, for placing and fixing seal rubber ring; Steel pipe female end is through cold expanding one-tenth horn mouth.
2. the bell socket that steel pipe two ends according to claim 1 are shaping, is characterized in that the joint socket be formed processes on steel pipe body, is the bell and spigot joint of non-solder composition.
3. the bell socket that steel pipe two ends according to claim 1 are shaping, is characterized in that socket inserts bellmouth gradually, voluntarily centering, until o-ring groove back porch on socket and mouthpiece horn contact internal walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252328.2U CN204805783U (en) | 2015-04-23 | 2015-04-23 | Fashioned socket joint formula interface in steel pipe both ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252328.2U CN204805783U (en) | 2015-04-23 | 2015-04-23 | Fashioned socket joint formula interface in steel pipe both ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805783U true CN204805783U (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520252328.2U Active CN204805783U (en) | 2015-04-23 | 2015-04-23 | Fashioned socket joint formula interface in steel pipe both ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626991A (en) * | 2016-03-30 | 2016-06-01 | 太仓久庄管业有限公司 | Bell and spigot type pipe fitting connector |
-
2015
- 2015-04-23 CN CN201520252328.2U patent/CN204805783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626991A (en) * | 2016-03-30 | 2016-06-01 | 太仓久庄管业有限公司 | Bell and spigot type pipe fitting connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210412 Address after: 751600 Hexi, Qingtongxia City, Wuzhong City, Ningxia Hui Autonomous Region Patentee after: Ningxia Qinglong Pipe Group Co.,Ltd. Address before: 201204 room 7-201, Lane 1880, Longyang Road, Pudong New Area, Shanghai Patentee before: Xia Lianning |
|
| TR01 | Transfer of patent right |