CN204512108U - A kind of welded structure - Google Patents
A kind of welded structure Download PDFInfo
- Publication number
- CN204512108U CN204512108U CN201520141931.3U CN201520141931U CN204512108U CN 204512108 U CN204512108 U CN 204512108U CN 201520141931 U CN201520141931 U CN 201520141931U CN 204512108 U CN204512108 U CN 204512108U
- Authority
- CN
- China
- Prior art keywords
- changeover portion
- casing
- pipe
- groove
- hole
- 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
Links
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a kind of welded structure, comprise casing, changeover portion and pipe, described casing side is provided with through hole, described changeover portion is round tubular structure, its one end is provided with outside flange, the other end is provided with circular projection, described pipe one end internal surface is provided with circular groove, described changeover portion is placed in the through hole of described casing, the flanging of described changeover portion one end is placed in casing, described pipe socket is with on described changeover portion, groove on it matches with the circular projection on described changeover portion, make the exterior surface of the end face of described pipe and described casing, changeover portion is increased between casing and pipe, first by described casing before carrying out welding operation, changeover portion is connected with pipe, so first pipe and casing are connected and fixed, be welding operation is more convenient, changeover portion plays the effect that connects liner simultaneously, effectively avoid joint to crack, the phenomenon of crack or even fracture occurs.
Description
Technical field
The utility model relates to welding technology field, in particular to a kind of welded structure.
Background technique
During welding work pieces; often the situation by pipe and welding box body can be run into; under normal circumstances; casing and pipe can directly adopt butt-welded mode to weld by people; can be in use; due to stress concentrate etc. reason, the joint of casing and pipe there will be crackle or phenomenon of rupture often.
Model utility content
The technical problems to be solved in the utility model is to provide the better welded structure of a kind of stability.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of welded structure, comprise casing, changeover portion and pipe, described casing side is provided with through hole, described changeover portion is round tubular structure, its one end is provided with outside flange, the other end is provided with circular projection, the internal diameter of described pipe equals the external diameter of described changeover portion, its one end internal surface is provided with circular groove, described changeover portion is placed in the through hole of described casing, the flanging of described changeover portion one end is placed in casing, described pipe socket is with on described changeover portion, groove on it matches with the circular projection on described changeover portion, make the exterior surface of the end face of described pipe and described casing.
Further: the circular projection on the groove on described pipe and described changeover portion matches and is combined into interference fit, and its magnitude of interference is 0.3-0.8mm.
The beneficial effects of the utility model: increase changeover portion between casing and pipe, first described casing, changeover portion are connected with pipe before carrying out welding operation, so first pipe and casing are connected and fixed, be welding operation is more convenient, simultaneously changeover portion plays the effect that connects liner, effectively avoids that joint cracks, the phenomenon of crack or even fracture occurs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, preferred embodiment of the present utility model is: a kind of welded structure, comprise casing 1, changeover portion 2 and pipe 3, described casing 1 side is provided with through hole 11, described changeover portion 2 is round tubular structure, its one end is provided with outside flange 21, the other end is provided with circular protruding 22, the internal diameter of described pipe 3 equals the external diameter of described changeover portion 2, its one end internal surface is provided with circular groove 31, described changeover portion 2 is placed in the through hole 11 of described casing 1, the flanging 21 of described changeover portion 2 one end is placed in casing 1, described pipe 3 is socketed with on described changeover portion 2, groove 31 on it matches with circular convex 22 on described changeover portion 2, make the end face of described pipe 3 and the exterior surface of described casing 1.
Preferably: the groove 31 on described pipe 3 matches with circular protruding 22 on described changeover portion 2 and is combined into interference fit, and its magnitude of interference is 0.3-0.8mm.
Claims (2)
1. a welded structure, comprise casing, changeover portion and pipe, described casing side is provided with through hole, described changeover portion is round tubular structure, its one end is provided with outside flange, the other end is provided with circular projection, the internal diameter of described pipe equals the external diameter of described changeover portion, its one end internal surface is provided with circular groove, described changeover portion is placed in the through hole of described casing, the flanging of described changeover portion one end is placed in casing, described pipe socket is with on described changeover portion, groove on it matches with the circular projection on described changeover portion, make the exterior surface of the end face of described pipe and described casing.
2. welded structure according to claim 1, is characterized in that: the circular projection of the groove on described pipe on described changeover portion matches and be combined into interference fit, and its magnitude of interference is 0.3-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141931.3U CN204512108U (en) | 2015-03-13 | 2015-03-13 | A kind of welded structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141931.3U CN204512108U (en) | 2015-03-13 | 2015-03-13 | A kind of welded structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512108U true CN204512108U (en) | 2015-07-29 |
Family
ID=53710090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520141931.3U Expired - Fee Related CN204512108U (en) | 2015-03-13 | 2015-03-13 | A kind of welded structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512108U (en) |
-
2015
- 2015-03-13 CN CN201520141931.3U patent/CN204512108U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20170313 |