CN2816543Y - Metal pipe joint of different materials - Google Patents
Metal pipe joint of different materials Download PDFInfo
- Publication number
- CN2816543Y CN2816543Y CN 03218759 CN03218759U CN2816543Y CN 2816543 Y CN2816543 Y CN 2816543Y CN 03218759 CN03218759 CN 03218759 CN 03218759 U CN03218759 U CN 03218759U CN 2816543 Y CN2816543 Y CN 2816543Y
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- CN
- China
- Prior art keywords
- column table
- different materials
- utility
- model
- metal pipe
- 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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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a metal pipe joint of different materials, with the purpose to solve the connection problem of two metal tubes of different materials. The utility model is characterized in that one end of the pipe wall of a flexible metal hose (1) is a concave column table in the radical direction, and one end of the pipe wall of a rigid metal pipe (2) is a convex column table in the radical direction. The outer side (4) of the convex column table is provided with threads, and the diameter of the inner side (3) of the concave column table is larger than that of the outer side (4) of the convex column table. The convex column table or a head is provided with a wedge and two symmetrical stop grooves (7). The middle part is provided with an axial annular groove (8), and the bottom is provided with a radical annular groove (9). The utility model is used for connecting with two metal pipes of different materials, and the joint point is equal to or larger than the outer diameter of the metal pipe. The utility model has the advantages of less space occupation, simple manufacturing process and high reliability.
Description
Technical field
The utility model relates to a kind of different material metallic pipe coupling.
Background technique
At present, flange plate and screw are all adopted in the connection of known two kinds of different metals pipes.Flange plate is connected with screw and has many deficiencies.The one, the flange plate size is bigger, and it is bigger not only to take up room, and consumable material is more; Moreover, in some application,, often to bear interior pressure up to 60 kilograms as the pipeline of air separation plant, operating temperature is-190 °～30 °, and the linear expansion coeffcient of two kinds of metals differs bigger, makes the reliability of connection low; The 3rd, narrow and small in some occasion space, make equipment that difficulty is installed.
Summary of the invention
The utility model purpose provides a kind of different material metallic pipe coupling, can solve the connectivity problem of two kinds of different metals pipes preferably, and the physical dimension of joint is greatly reduced.
The technical solution of the utility model is: a kind of different material metallic pipe coupling is characterized in that: tube wall one end than flexible metal conduit 1 radially is a recessed pylon, and tube wall one end of hard metal tube 2 radially is a projection platform.
The described projection platform outside 4 is threaded, and the diameter of described recessed pylon inboard 3 can be slightly larger than the diameter in the projection platform outside 4;
Described projection platform or head have wedge, and the locking groove 7 of two symmetries is arranged, and the middle part is an axial annular recess 8, and the bottom is radial ringed groove 9.
The utility model advantage compared to existing technology is, can carry out the connection of two kinds of different metals pipes, and after the connection, the joint equates with the metal tube external diameter or be bigger that it is little to take up room; The join strength of joint can reach the yield strength of more weak a kind of metallic material in two kinds of metals; Manufacturing process is easy; The reliability height, pressure can reach 80 kilograms of hydraulic pressure or 60 kilograms of air pressure are not revealed in bearing.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is first embodiment's a structural representation
Fig. 2 is second embodiment's a structural representation
1-is than flexible metal conduit among the figure, and 2-is metal tube firmly, the recessed pylon of 3-inboard, the 4-projection platform outside, 5-A junction surface, 6-B junction surface, 7-groove, 8-axial annular recess, the radial ringed groove of 9-
Embodiment
In the embodiment shown in fig. 1, than the tube wall of flexible metal conduit 1 radially certain distance be a recessed pylon, the tube wall of hard metal tube 2 radially certain distance is a projection platform, the projection platform outside 4 is threaded, the projection platform outside 4 of hard metal tube 2 with than the recessed pylon inboard 3 of flexible metal conduit 1 by threading path to friction welding, A junction surface 5 and B junction surface 6 weld for axial rub.
In another embodiment shown in Figure 2, the tube wall of hard metal tube 2 radially certain distance is the special-shaped projection platform of a no screw thread, projection title portion is the wedge that has several angle, and the groove 7 that two symmetries are arranged is used for stop, projection platform middle part is an axial annular recess 8, and projection platform bottom is radial ringed groove 9.Than the tube wall of flexible metal conduit 1 radially certain distance be a recessed pylon.In mould, produce plastic deformation under pressure than flexible metal conduit 1 and closely be connected with hard metal tube 2.In order to reduce plastic deformation force, plastic deformation is flowed be more prone to, also can will heat than flexible metal conduit 1, heating-up temperature is 100～800 ℃.
In order to guarantee intensity and the reliability after bimetal tube connects, can be slightly larger than caliber than the external diameter of flexible metal conduit 1 joint.
Claims (2)
1, a kind of different material metallic pipe coupling is characterized in that: tube wall one end than flexible metal conduit (1) radially is a recessed pylon, and tube wall one end of hard metal tube (2) radially is a projection platform.
2, different material metallic pipe coupling according to claim 1 is characterized in that: the described projection platform outside (4) is threaded, and the diameter of described recessed pylon inboard (3) can be slightly larger than the diameter in the projection platform outside (4);
Described projection platform or head have wedge, and the locking groove (7) of two symmetries is arranged, and the middle part is axial annular recess (8), and the bottom is radial ringed groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03218759 CN2816543Y (en) | 2003-04-17 | 2003-04-17 | Metal pipe joint of different materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03218759 CN2816543Y (en) | 2003-04-17 | 2003-04-17 | Metal pipe joint of different materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816543Y true CN2816543Y (en) | 2006-09-13 |
Family
ID=36996352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03218759 Expired - Fee Related CN2816543Y (en) | 2003-04-17 | 2003-04-17 | Metal pipe joint of different materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816543Y (en) |
-
2003
- 2003-04-17 CN CN 03218759 patent/CN2816543Y/en not_active Expired - Fee Related
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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: 20060913 |