CN103267184A - Sealing pressing flange anchoring structure of nodular cast iron pipe - Google Patents
Sealing pressing flange anchoring structure of nodular cast iron pipe Download PDFInfo
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- CN103267184A CN103267184A CN2013102032464A CN201310203246A CN103267184A CN 103267184 A CN103267184 A CN 103267184A CN 2013102032464 A CN2013102032464 A CN 2013102032464A CN 201310203246 A CN201310203246 A CN 201310203246A CN 103267184 A CN103267184 A CN 103267184A
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- cast iron
- iron pipe
- boss
- nodular cast
- sealing
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Abstract
The invention discloses a sealing pressing flange anchoring structure of a nodular cast iron pipe in the technical field of installation of pipelines. The sealing pressing flange anchoring structure of the nodular cast iron pipe comprises a nodular cast iron pipe bell end, a nodular cast iron pipe inserting port, a sealing ring and a T-type bolt pair, and further comprises a sealing pressing flange with a boss. Corresponding fastening bolt pairs are evenly distributed on the outer wall of the nodular cast iron pipe inserting port and the matched face of the sealing pressing flange with the boss, and the boss of the sealing pressing flange with the boss is provided with a corresponding thrust screw which is perpendicularly crossed with locating holes and axially parallel to the nodular cast iron pipe inserting port. The sealing pressing flange anchoring structure of the nodular cast iron pipe is formed by the fastening bolt pairs on the sealing pressing flange with the boss and locating bolt holes in the nodular cast iron pipe inserting port in a connecting mode, the thrust screw is matched to reduce the axial displacement, the sealing effect is ensured, meanwhile, separation between adjacent ports of the nodular cast iron pipe can be prevented, a buttress is removed, construction cost of the pipelines is reduced greatly, and the anchoring structure has high practicability.
Description
Technical field
The present invention relates to the pipe installation technology field.
Background technique
Ductile iron pipe interface pattern is the Placement that must select in the pipeline designs.The mechanical type K type interface of selecting for use in the construction, it is simple in structure, adopts differential bolt connection convenient disassembly, can guarantee excellent sealing performance.But its shortcoming is the performance that does not possess anti-pull-off, turns, climbs, stops at pipeline or buttress need be set up in the place of reducing.In some special location or limited place, space do not allow to set up under the situation of buttress, must adopt the restriction interface to resist the thrust that is produced by hydraulic pressure.
Summary of the invention
The interface anchor structure that technical problem to be solved by this invention provides a kind of ductile iron pipe has axial force simple in structure, as can to resist the hydraulic pressure generation, avoids setting up buttress, reduces the pipeline construction expense greatly.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of spheroidal graphite cast iron seal of tube differential anchor structure, comprise spheroidal graphite cast iron tube faucet, ductile iron pipe socket, seal ring and T type bolt pair, also comprise the sealing differential of being with boss, described ductile iron pipe socket outer wall cooperates with the sealing differential of band boss, ductile iron pipe socket outer wall and the boss of sealing differential of band boss are provided with the corresponding radial location hole more than 3, be provided with fastening screw trip bolt in the positioning hole, fastening screw trip bolt cooperates with nut.
Preferably, the boss of the sealing differential of described band boss be provided with more than 3 with the positioning hole square crossing, with the corresponding tapped hole of ductile iron pipe socket parallel to an axis, the tapped hole place is provided with the thrust screw.
Preferably, the radial location hole on the described ductile iron pipe socket outer wall is the taper pipe thread hole, and the screw thread of described fastening screw trip bolt and nut is taper pipe thread, and described fastening screw trip bolt is sunk screw.
Preferably, described seal ring is K type O-ring seal.
Preferably, the sealing differential of described band boss is whole annulus foundry goods.
The beneficial effect that adopts technique scheme to produce is:
This kind spheroidal graphite cast iron seal of tube differential anchor structure is connected to form anchor structure by the positioning hole on the pair of the clamping bolt on the sealing differential of band boss and the ductile iron pipe socket, cooperate the thrust screw to reduce axial displacement, can when guaranteeing sealing effect, prevent from throwing off mutually between the adjacent interface of ductile iron pipe, avoid setting up buttress, greatly reduce the pipeline construction expense, have very strong practicability.
Description of drawings
Fig. 1 is partial front elevation view of the present invention;
Fig. 2 is the part sectioned view of Fig. 1.
Among the figure: 1-ductile iron pipe socket, 2-spheroidal graphite cast iron tube faucet, the sealing differential of 3-band boss, 4-seal ring, 5-T type bolt pair, 6-fastening screw trip bolt, 7-thrust screw, 8-nut.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, a kind of spheroidal graphite cast iron seal of tube differential anchor structure, comprise spheroidal graphite cast iron tube faucet 1, ductile iron pipe socket 2, seal ring 4 and T type bolt pair 5, also comprise the sealing differential 3 of being with boss, described ductile iron pipe socket 2 outer walls cooperate with the sealing differential 3 of band boss, ductile iron pipe socket 2 outer walls and the boss of sealing differential 3 of band boss are provided with the corresponding radial location hole more than 3, are provided with fastening screw trip bolt 6 in the positioning hole, and fastening screw trip bolt 6 cooperates with nut 8.
Preferably, the boss of the sealing differential 3 of described band boss be provided with more than 3 with the positioning hole square crossing, with the corresponding tapped hole of ductile iron pipe socket 2 parallel to an axiss, the tapped hole place is provided with thrust screw 7.
Preferably, radial location hole on the described ductile iron pipe socket outer wall is the taper pipe thread hole, and the screw thread of described fastening screw trip bolt 6 and nut 8 is taper pipe thread, and described fastening screw trip bolt 6 is sunk screw, taper pipe thread connects can play seal action, and leak at urgent solid screw 6 places of anti-sealing.
Preferably, described seal ring 4 is K type O-ring seal.
Preferably, the sealing differential 3 of described band boss is whole annulus foundry goods.
Installation method: earlier the sealing differential 3 of band boss is enclosed within on the ductile iron pipe socket 2, radial location hole on the boss of the sealing differential 3 of band boss is aimed at the positioning hole of ductile iron pipe socket 2 outer walls, it is evenly fastening that fastening screw peg 6 and nut 8 are installed, and on ductile iron pipe socket 2 seal ring 4 is installed then.Ductile iron pipe socket 2 ends of the sealing differential 3 that installs the band boss and K type O-ring seal are inserted in the spheroidal graphite cast iron tube faucet 1, aim at the sealing differential 3 of band boss and install with the flange bolt hole of spheroidal graphite cast iron tube faucet 1
T Type bolt pair 5 availablely adds the stay bolt traction and treats pitch smaller, dehorn standard again if the flange bolt hole pitch of the sealing differential 3 of band boss and spheroidal graphite cast iron tube faucet 1 is too big
TThe type bolt is the fastening seal request that reaches evenly, holds out against one by one with thrust screw 7 at last.
Because the interface position of ductile iron pipe is subjected to inside water pressure to make time spent generation axial force, ductile iron pipe socket 2 can outwards produce pull-off from spheroidal graphite cast iron tube faucet 1, this axial force is delivered between T type bolt secondary 5 and the spheroidal graphite cast iron tube faucet 1 by the interaction of 6 of the fastening screw trip bolts on the sealing differential 3 of the positioning hole on the ductile iron pipe socket 2 and band boss, resist this axial force because of the active force that is fastenedly connected between T type bolt secondary 5 and the K type spheroidal graphite cast iron tube faucet 1, make interface can bear certain line pressure and do not produce pull-off.
This kind spheroidal graphite cast iron seal of tube differential anchor structure is connected to form anchor structure by the positioning hole on the fastening screw trip bolt 6 on the sealing differential 3 of band boss, nut 8 and the ductile iron pipe socket 2, cooperate thrust screw 7 to reduce axial displacement, when guaranteeing sealing effect, can prevent from throwing off mutually between the adjacent interface of ductile iron pipe, avoid setting up buttress, greatly reduce the pipeline construction expense, have very strong practicability.
Claims (5)
1. spheroidal graphite cast iron seal of tube differential anchor structure, comprise spheroidal graphite cast iron tube faucet (1), ductile iron pipe socket (2), seal ring (4) and T type bolt pair (5), it is characterized in that: also comprise the sealing differential (3) of being with boss, described ductile iron pipe socket (1) outer wall cooperates with the sealing differential (3) of band boss, ductile iron pipe socket (1) outer wall and the boss of sealing differential (3) of band boss are provided with the corresponding radial location hole more than 3, be provided with fastening screw trip bolt (6) in the positioning hole, fastening screw trip bolt (6) cooperates with nut (8).
2. spheroidal graphite cast iron seal of tube differential anchor structure according to claim 1, it is characterized in that: the boss of the sealing differential (3) of described band boss be provided with more than 3 with the positioning hole square crossing, with the corresponding tapped hole of ductile iron pipe socket (1) parallel to an axis, the tapped hole place is provided with thrust screw (7).
3. spheroidal graphite cast iron seal of tube differential anchor structure according to claim 1, it is characterized in that: the radial location hole on described ductile iron pipe socket (1) outer wall is the taper pipe thread hole, the screw thread of described fastening screw trip bolt (6) and nut (8) is taper pipe thread, and described fastening screw trip bolt (6) is sunk screw.
4. spheroidal graphite cast iron seal of tube differential anchor structure according to claim 1, it is characterized in that: described seal ring (4) is K type O-ring seal.
5. spheroidal graphite cast iron seal of tube differential anchor structure according to claim 1, it is characterized in that: the sealing differential (3) of described band boss is whole annulus foundry goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102032464A CN103267184A (en) | 2013-05-28 | 2013-05-28 | Sealing pressing flange anchoring structure of nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102032464A CN103267184A (en) | 2013-05-28 | 2013-05-28 | Sealing pressing flange anchoring structure of nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103267184A true CN103267184A (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102032464A Pending CN103267184A (en) | 2013-05-28 | 2013-05-28 | Sealing pressing flange anchoring structure of nodular cast iron pipe |
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| CN (1) | CN103267184A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487948A (en) * | 1974-12-16 | 1977-10-05 | Hunting Oilfield Services Ltd | Pipe connectors |
| FR2430562A1 (en) * | 1978-07-06 | 1980-02-01 | Guillo Casals Juan | Telescopic joint for pipes - has O=ring seal and is retained by radial screws with cupped tips |
| CN2150935Y (en) * | 1992-08-07 | 1993-12-29 | 烟台市家用电器研究所 | Hand pipe dredger with soft shaft |
| CN1443961A (en) * | 2002-12-18 | 2003-09-24 | 新兴铸管股份有限公司 | Casting pipe automatic anchor interface |
| CN101852313A (en) * | 2010-06-21 | 2010-10-06 | 新兴铸管股份有限公司 | Heavy-calibre self-riveting connecting nodular cast iron pipe |
| CN201739662U (en) * | 2010-07-29 | 2011-02-09 | 天津万联管道工程有限公司 | Connecting and fixing structure for pipeline bell and spigot |
| CN202780083U (en) * | 2012-09-25 | 2013-03-13 | 郑州卫华工程机械有限公司 | Gear shaft clamp mounting tools for vertical gear hobbing machine |
| CN203336097U (en) * | 2013-05-28 | 2013-12-11 | 新兴河北工程技术有限公司 | Anchoring structure with sealing pressing flange and for nodular cast iron pipes |
-
2013
- 2013-05-28 CN CN2013102032464A patent/CN103267184A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1487948A (en) * | 1974-12-16 | 1977-10-05 | Hunting Oilfield Services Ltd | Pipe connectors |
| FR2430562A1 (en) * | 1978-07-06 | 1980-02-01 | Guillo Casals Juan | Telescopic joint for pipes - has O=ring seal and is retained by radial screws with cupped tips |
| CN2150935Y (en) * | 1992-08-07 | 1993-12-29 | 烟台市家用电器研究所 | Hand pipe dredger with soft shaft |
| CN1443961A (en) * | 2002-12-18 | 2003-09-24 | 新兴铸管股份有限公司 | Casting pipe automatic anchor interface |
| CN101852313A (en) * | 2010-06-21 | 2010-10-06 | 新兴铸管股份有限公司 | Heavy-calibre self-riveting connecting nodular cast iron pipe |
| CN201739662U (en) * | 2010-07-29 | 2011-02-09 | 天津万联管道工程有限公司 | Connecting and fixing structure for pipeline bell and spigot |
| CN202780083U (en) * | 2012-09-25 | 2013-03-13 | 郑州卫华工程机械有限公司 | Gear shaft clamp mounting tools for vertical gear hobbing machine |
| CN203336097U (en) * | 2013-05-28 | 2013-12-11 | 新兴河北工程技术有限公司 | Anchoring structure with sealing pressing flange and for nodular cast iron pipes |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 056000 No. 2 Century Avenue, Handan Economic Development Zone, Hebei Applicant after: Xinxing Hebei Engineering Technology Co., Ltd. Address before: 056107 No. 99, harmony street, Handan Economic Development Zone, Hebei Applicant before: Xinxing Hebei Engineering Technology Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130828 |