CN201696748U - Large-caliber self-riveting connection nodular cast iron pipe - Google Patents
Large-caliber self-riveting connection nodular cast iron pipe Download PDFInfo
- Publication number
- CN201696748U CN201696748U CN2010202311318U CN201020231131U CN201696748U CN 201696748 U CN201696748 U CN 201696748U CN 2010202311318 U CN2010202311318 U CN 2010202311318U CN 201020231131 U CN201020231131 U CN 201020231131U CN 201696748 U CN201696748 U CN 201696748U
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- Prior art keywords
- hole
- rivet
- riveting
- cast iron
- iron pipe
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Abstract
The utility model discloses a large-caliber self-riveting connection nodular cast iron pipe, which comprises a bell mouth and a spigot, wherein an annular groove is arranged on the annular surface of the inner side of a sealing surface of the bell mouth; a self-riveting hole is formed at the spigot end of the spigot; a self-riveting nail is arranged in the self-riveting hole; and the diameter of the self-riveting nail is small than the width of the annular groove. The large-caliber self-riveting connection nodular cast iron pipe has that advantages of simple construction and low construction cost, and the streamline production of the large-caliber self-riveting connection nodular cast iron pipe can be realized.
Description
Technical field
The utility model relates to a kind of ductile iron pipe, especially a kind of heavy-calibre self-riveting connecting nodular cast iron pipe.
Background technique
At present when producing self-riveting heavy caliber ductile iron pipe, owing to must add one week of weldering along the circumferential direction by hand near pipe socket end from the riveting ring, cause in actual production, be subjected to very big influence at aspects such as grinding tool, technology, equipment, production can not have good continuity, also is difficult to realize production line production.And in installation, each joint socket position also needs to excavate the construction hole, also wants the very high lock ring of user cost, pressing flange disk, j-bolt.Thereby manufacture cost and construction cost are all very high.Therefore, designing that a kind of construction is simple, construction cost is low, can realize the heavy-calibre self-riveting connecting nodular cast iron pipe that production line is produced, is the present technical issues that need to address.
Summary of the invention
Technical problem to be solved in the utility model provides that a kind of construction is simple, construction cost is low, can realize the heavy-calibre self-riveting connecting nodular cast iron pipe that production line is produced.
The technical scheme in the invention for solving the technical problem is:
A kind of heavy-calibre self-riveting connecting nodular cast iron pipe, comprise its bellmouth and socket, the ring surface of the inboard of the sealing surface of bellmouth is provided with annular groove, is provided with from rivet hole at the socket end of socket, in rivet hole, be provided with from rivet, be slightly less than the width of annular groove from the diameter of rivet.
The technical scheme in the invention for solving the technical problem can also be:
Annular groove described in the utility model is the multiple tracks annular groove that distributes along its length, described from rivet hole be the multiple tracks that distributes along its length from rivet hole, every twice equate from the size of the centre distance between the centre distance between the rivet hole and the every bipassage ring connected in star.
Described in the utility model is tapped hole from rivet hole, and described is screw from rivet.
Described in the utility model is unthreaded hole from rivet hole, is set with in the bellmouth of bellmouth from the riveting ring, on the riveting ring, having from rivet hole, and on the riveting ring, be screw hole from rivet hole, described is screw from rivet, the diameter of screw is identical with the diameter of screw hole.
Described in the utility model is unthreaded hole from rivet hole, in the bellmouth of bellmouth, be set with a plurality of " U " type plug-in unit, the end of socket is inserted in " U " type groove of " U " plug-in unit, the inwall unthreaded hole from the same diameter of rivet hole with socket (4) socket end is arranged on the inwall of " U " type plug-in unit, on the outer wall of " U " type plug-in unit, have with from the identical outer wall thread hole of the diameter of thread of rivet, the outer wall thread hole is concentric with the inwall unthreaded hole, and the size of the centre distance between the centre distance of every twice outer wall thread hole and inwall unthreaded hole and the every bipassage ring connected in star equates.
Having from rivet hole of each road of the utility model is a plurality of, a plurality ofly evenly distributes along circumference from rivet hole.
Compared with prior art, the utility model construction is simple, construction cost is low, and ductile iron pipe production can realize pipelining.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 be among Fig. 1 A-A to sectional view.
Fig. 3 is a connection diagram of the present utility model.
Fig. 4 is first embodiment's schematic representation of part 5 among Fig. 3.
Fig. 5 is second embodiment's schematic representation of part 5 among Fig. 3.
Fig. 6 is the plan view of Fig. 5.
Embodiment
As shown in the figure, a kind of heavy-calibre self-riveting connecting nodular cast iron pipe, the bellmouth 1 and the socket 4 that comprise it, the ring surface of the inboard of the sealing surface of bellmouth 1 is provided with annular groove 2, socket end at socket 4 is provided with from rivet hole 3, in rivet hole 3, being provided with, be slightly less than the width of annular groove 2 from the diameter of rivet 9 from rivet 9.
Described annular groove 2 is the multiple tracks annular groove that distributes along its length, described from rivet hole 3 be the multiple tracks of distribution along its length from rivet hole, every twice equate from the size of the centre distance between the centre distance between the rivet hole and the every bipassage ring connected in star.
Described is tapped hole from rivet hole 3, and described is screw from rivet 9.
Described is unthreaded hole from rivet hole 3, is set with in the bellmouth of bellmouth 1 from riveting ring 5, on riveting ring 5, having from rivet hole 6, and on riveting ring 5, be screw hole from rivet hole 6, described is screw from rivet 9, the diameter of screw is identical with the diameter of screw hole.
Described is unthreaded hole from rivet hole 3, in the bellmouth of bellmouth 1, be set with a plurality of " U " type plug-in unit 5, the end of socket 4 is inserted in " U " type groove of " U " plug-in unit 5, the inwall unthreaded hole 7 from rivet hole 3 same diameters with socket 4 socket ends is arranged on the inwall of " U " type plug-in unit 5, on the outer wall of " U " type plug-in unit 5, have with from the identical outer wall thread hole 6 of the diameter of thread of rivet 9, outer wall thread hole 6 is concentric with inwall unthreaded hole 7, and the size of the centre distance between the centre distance of every twice outer wall thread hole 6 and inwall unthreaded hole 7 and the every bipassage ring connected in star equates.
Having from rivet hole 3 of each road is a plurality of, a plurality ofly evenly distributes along circumference from rivet hole 3.
Claims (6)
1. heavy-calibre self-riveting connecting nodular cast iron pipe, the bellmouth (1) and the socket (4) that comprise it, it is characterized in that: the ring surface of the inboard of the sealing surface of bellmouth (1) is provided with annular groove (2), socket end at socket (4) is provided with from rivet hole (3), in rivet hole (3), being provided with, be slightly less than the width of annular groove (2) from the diameter of rivet (9) from rivet (9).
2. a kind of heavy-calibre self-riveting connecting nodular cast iron pipe according to claim 1, it is characterized in that: the multiple tracks annular groove of described annular groove (2) for distributing along its length, described from rivet hole (3) be the multiple tracks that distributes along its length from rivet hole, every twice equate from the size of the centre distance between the centre distance between the rivet hole and the every bipassage ring connected in star.
3. a kind of heavy-calibre self-riveting connecting nodular cast iron pipe according to claim 1 and 2 is characterized in that: described is tapped hole from rivet hole (3), and described is screw from rivet (9).
4. a kind of heavy-calibre self-riveting connecting nodular cast iron pipe according to claim 1 and 2, it is characterized in that: described is unthreaded hole from rivet hole (3), in the bellmouth of bellmouth (1), be set with from riveting ring (5), on riveting ring (5), having from rivet hole (6), on riveting ring (5), be screw hole from rivet hole (6), described is screw from rivet (9), and the diameter of screw is identical with the diameter of screw hole.
5. a kind of heavy-calibre self-riveting connecting nodular cast iron pipe according to claim 1 and 2, it is characterized in that: described is unthreaded hole from rivet hole (3), in the bellmouth of bellmouth (1), be set with a plurality of " U " type plug-in unit (5), the end of socket (4) is inserted in " U " type groove of " U " plug-in unit (5), the inwall unthreaded hole (7) from the same diameter of rivet hole (3) with socket (4) socket end is arranged on the inwall of " U " type plug-in unit (5), on the outer wall of " U " type plug-in unit (5), have with from the identical outer wall thread hole (6) of the diameter of thread of rivet (9), outer wall thread hole (6) is concentric with inwall unthreaded hole (7), and the size of the centre distance between the centre distance of every twice outer wall thread hole (6) and inwall unthreaded hole (7) and the every bipassage ring connected in star equates.
6. a kind of heavy-calibre self-riveting connecting nodular cast iron pipe according to claim 1 and 2 is characterized in that: having from rivet hole (3) of each road is a plurality of, a plurality ofly evenly distributes along circumference from rivet hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202311318U CN201696748U (en) | 2010-06-21 | 2010-06-21 | Large-caliber self-riveting connection nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202311318U CN201696748U (en) | 2010-06-21 | 2010-06-21 | Large-caliber self-riveting connection nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696748U true CN201696748U (en) | 2011-01-05 |
Family
ID=43397991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202311318U Expired - Lifetime CN201696748U (en) | 2010-06-21 | 2010-06-21 | Large-caliber self-riveting connection nodular cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2010
- 2010-06-21 CN CN2010202311318U patent/CN201696748U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110105 Effective date of abandoning: 20111207 |