CN2564832Y - Joint for steel pipe and cast-iron pipe - Google Patents
Joint for steel pipe and cast-iron pipe Download PDFInfo
- Publication number
- CN2564832Y CN2564832Y CN 02253355 CN02253355U CN2564832Y CN 2564832 Y CN2564832 Y CN 2564832Y CN 02253355 CN02253355 CN 02253355 CN 02253355 U CN02253355 U CN 02253355U CN 2564832 Y CN2564832 Y CN 2564832Y
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- Prior art keywords
- steel
- joint
- pipe
- ring
- cast
- 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
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Abstract
The utility model relates to a joint for a steel pipe and a cast iron pipe. A steel pipe can be conveniently connected with a cast iron pipe. The joint end of a steel pipe (5) is provided with a bell mouth (3), and an expansion joint (7) is formed. The inner ring wall of the expansion joint (7) is embedded with a spacing steel ring (4) and a fixed steel ring (6). A ring wedge type rubber ring (2) is embedded between the two steel rings (4, 6). Then a cast iron pipe (1) is inserted. The inner ring wall of the joint (7) can be embedded with two spacing steel rings (4). After a steel bell mouth is formed, the utility model can be widely applied in more than ten water supply and sewerage works; through practical proof, the adaptability and the reliability of the utility model are ensured; in the process of installation, time and labor are saved, and maintenance cost is reduced.
Description
(1) technical field:
The utility model belongs to steel pipeline and the cast-iron pipe interface on the water supply and sewage work.
(2) background technique:
On water supply and sewage work in the cast-iron pipe installation process, short when meeting highway crossing or pipeline and need meet and discuss because of cast iron tube, pass through or meet and discuss with steel pipe, and steel pipe interface and cast-iron pipe joint do not match, and often will relate to the connectivity problem of steel pipe and cast iron tube.Ancient or traditional connecting means is to connect with professional cast iron cock wheel (abbreviation oversleeve), both sides are beaten plumbous mouthful, this method advantage is a technology maturation, construction has for many years accumulated certain experience, but difficulty of construction is big, particularly meet level of ground water in the installation process when higher, in-situ processing is comparatively complicated, extend labour time increases labor intensity of operating personnel, and its most fatal shortcoming is that the interface safety coefficient is not high, particularly under geographical conditions such as frequent vibration district such as both sides of highway, be easy to generate seepage, the lighter has influenced normal water supply, and weight person will wash away roadbed; Both made not vibration in addition, the inner water hammer of pipeline own also often makes jointing produce seepage, brings a lot of adverse effects.
(3) model utility content:
Technical problem to be solved in the utility model is at the problem that exists in the background technique, and a kind of steel pipeline and cast-iron pipe interface of quick and good stability are provided.
The invention for solving the technical problem can reach by following technical solution: make bellmouth in the steel pipe interface end, promptly constitute the hole enlargement joint, the spacing steel ring of edge, fixed steelring on the internal ring wall of this hole enlargement joint embed ring wedge type cushion rubber between two steel rings, then insert cast iron tube.
In such scheme, on the internal ring wall of joint, can inlay the spacing steel ring of twice.The utility model is to make a steel bellmouth, the external form physical dimension of this bellmouth is close substantially with cast iron pipe bellmouth, but the mounting groove of cushion rubber can't be provided with in the steel bellmouth, the main effect of considering the glue groove is fixing cushion rubber, thereby in the steel bellmouth cross setting twice steel ring, it mainly plays two aspect effects, one is that cushion rubber is played fixation, one is that cushion rubber is played position-limiting action, cushion rubber just is fixed on the predefined position like this, guarantee to reach rational compression ratio after socket injects, thereby play the sealing effect, guarantee the safe and reliable ne-leakage of interface.
The utility model is compared with background technique has following beneficial effect: after the steel bellmouth is made, in 10 multinomial water supply and sewage work, carry out extensive use, the applicability and the reliability of this achievement have been facts have proved, and it is time saving and energy saving in the installation process, promptly reduce maintenance expenses, also improved economic benefit of enterprises and social benefit.
(4) description of drawings:
Accompanying drawing 1 is that steel, cast tube (5,1) interface adopt traditional Placement erection drawing;
Accompanying drawing 2 is steel, this interface schema of cast tube (5,1).
(5) embodiment:
Below in conjunction with the drawings and specific embodiments will the utility model is described in further detail:
By shown in Figure 2, make bellmouth 3 in steel pipe 5 interface end, promptly constitute hole enlargement joint 7, the spacing steel ring 4 of edge, fixed steelring 6 on the internal ring wall of this hole enlargement joint 7 embed ring wedge type cushion rubber 2 between two steel rings (4,6), then insert cast iron tube 1.
In such scheme, on the internal ring wall of joint 7, can inlay the spacing steel ring 4 of twice, can improve the stability after the grafting.By shown in Figure 1, jointing is furnished with overcoat 11, between this overcoat and steel, the cast tube (5,1) cast iron cock wheel 10, spunyarn 8, blue or green lead ring 9 is housed.
Claims (2)
1, a kind of steel pipeline and cast-iron pipe interface that relates on the water supply and sewage work, contain cast iron tube (1), steel pipe (5), it is characterized in that: make bellmouth (3) in steel pipe (5) interface end, promptly constitute hole enlargement joint (7), edge spacing steel ring (4), fixed steelring (6) on the internal ring wall of this hole enlargement joint (7), between two steel rings (4,6), embed ring wedge type cushion rubber (2), then insert cast iron tube (1).
2, interface according to claim 1 is characterized in that: can inlay the spacing steel ring of twice (4) on the internal ring wall of joint (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253355 CN2564832Y (en) | 2002-09-11 | 2002-09-11 | Joint for steel pipe and cast-iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253355 CN2564832Y (en) | 2002-09-11 | 2002-09-11 | Joint for steel pipe and cast-iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564832Y true CN2564832Y (en) | 2003-08-06 |
Family
ID=33722538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02253355 Expired - Fee Related CN2564832Y (en) | 2002-09-11 | 2002-09-11 | Joint for steel pipe and cast-iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564832Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003771A (en) * | 2015-07-28 | 2015-10-28 | 李文菁 | Pipe with socket of enhancement structure |
-
2002
- 2002-09-11 CN CN 02253355 patent/CN2564832Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003771A (en) * | 2015-07-28 | 2015-10-28 | 李文菁 | Pipe with socket of enhancement structure |
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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 |