CN201720350U - Improved structure of tube expander - Google Patents
Improved structure of tube expander Download PDFInfo
- Publication number
- CN201720350U CN201720350U CN2010201827911U CN201020182791U CN201720350U CN 201720350 U CN201720350 U CN 201720350U CN 2010201827911 U CN2010201827911 U CN 2010201827911U CN 201020182791 U CN201020182791 U CN 201020182791U CN 201720350 U CN201720350 U CN 201720350U
- Authority
- CN
- China
- Prior art keywords
- extension rod
- tube expander
- tube
- improved structure
- positioning
- 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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- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
The utility model discloses an improved structure of a tube expander. The improved structure comprises a tube expander body, wherein an extension rod is arranged at the tail end of the tube expander body, a positioning device for positioning the extension depth of the extension rod is arranged on the extension rod, the positioning device is a positioning bolt connected with the thread of the extension rod. The extension rod is arranged at the tail end of the tube expander body, and the positioning device for positioning the extension depth of the extension rod is arranged on the extension rod, the structure is simple, the tube expanding position of the tube expander can be positioned at random, the improved structure is particularly suitable for the expansion joint at the connecting position on the middle section of the tube, the connecting structure of the pipe can be simplified, the working efficiency is improved, and the cost is reduced.
Description
Technical field
The utility model relates to tube expander.
Background technology
Structure as shown in Figure 1, be existing common tube expander, comprise tube expander body 1 and be connected the limiting plate 2 of body rear end, this kind tube expander can only carry out expand tube in the end of pipe fitting, as Fig. 2 is a kind of heat exchanger of common type, the middle joining part of its heat exchanger shell just need put tube sheet 4 respectively in 3 ends, two middle casing unit and carry out expand tube, some bolts 5 of establishing by ring connect then, expanded joint point is many like this, and two tube sheets 4 of intermediate demand, increase a tube sheet and middle bolt and the pad that connects, thereby increase cost and efficient are low.
The utility model content
Technical problem to be solved in the utility model just provides a kind of tube expander simple in structure and improves structure, can arbitrarily locate the expand tube position of tube expander, be specially adapted to the expanded joint of pipe fitting interlude junction, can simplify pipe fitting joint structure, increase work efficiency and reduce cost.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of tube expander improves structure, comprise the tube expander body, it is characterized in that: described tube expander body afterbody also is provided with extension rod, and described extension rod is provided with the location extension rod and extends the positioner of the degree of depth.
Preferably, the bolt of described positioner for being threaded with extension rod.
Preferably, described extension rod is a tubulose.
The utility model is by establishing extension rod at tube expander body afterbody and setting the position extension rod and extend the positioner of the degree of depth on extension rod, simple in structure, can arbitrarily locate the expand tube position of tube expander, be specially adapted to the expanded joint of pipe fitting interlude junction, can simplify pipe fitting joint structure, increase work efficiency and reduce cost.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of existing common tube expander;
Fig. 2 is a kind of structural representation of common heat exchanger;
Fig. 3 improves the structural representation of structure for the utility model tube expander;
Fig. 4 improves the heat exchanger structure figure that structure is carried out expanded joint for adopting the utility model tube expander.
The specific embodiment
As shown in Figure 3, for a kind of tube expander of the utility model improves structure, comprise tube expander body 1, described tube expander body afterbody also is provided with extension rod 6, described extension rod is provided with the location extension rod and extends the positioner 7 of the degree of depth, the bolt of described positioner for being threaded with extension rod, described extension rod is a tubulose.As Fig. 4, only need a tube sheet 4 in the middle of the heat exchanging device housing during joining part expanded joint, two middle casing unit 3 are through in the tube sheet 4, then by the have good positioning extension degree of depth of extension rod of positioner, the tube expander body being stretched into tube sheet 4 positions carries out expand tube and gets final product again, can save a tube sheet 4 like this, not need bolt to connect simultaneously.But adopt one of two ends of heat exchanging device that use the same method and carry out expanded joint.Certainly, generally can suitably improve under this structure, guarantee that expanded joint is firm tube sheet and expanded joint place, middle casing unit structure.
Claims (3)
1. a tube expander improves structure, comprises the tube expander body, and it is characterized in that: described tube expander body afterbody also is provided with extension rod, and described extension rod is provided with the location extension rod and extends the positioner of the degree of depth.
2. improve structure according to the described tube expander of claim 1, it is characterized in that: the bolt of described positioner for being threaded with extension rod.
3. improve structure according to claim 1 or 2 described tube expanders, it is characterized in that: described extension rod is a tubulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201827911U CN201720350U (en) | 2010-05-05 | 2010-05-05 | Improved structure of tube expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201827911U CN201720350U (en) | 2010-05-05 | 2010-05-05 | Improved structure of tube expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201720350U true CN201720350U (en) | 2011-01-26 |
Family
ID=43488634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201827911U Expired - Fee Related CN201720350U (en) | 2010-05-05 | 2010-05-05 | Improved structure of tube expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201720350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431006A (en) * | 2011-10-17 | 2012-05-02 | 河南柴油机重工有限责任公司 | Pinhole extrusion sealing method and tool |
| CN106141000A (en) * | 2015-04-14 | 2016-11-23 | 上海工业锅炉有限公司 | A kind of boiler pipe-expanding device of applicable small space |
-
2010
- 2010-05-05 CN CN2010201827911U patent/CN201720350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431006A (en) * | 2011-10-17 | 2012-05-02 | 河南柴油机重工有限责任公司 | Pinhole extrusion sealing method and tool |
| CN106141000A (en) * | 2015-04-14 | 2016-11-23 | 上海工业锅炉有限公司 | A kind of boiler pipe-expanding device of applicable small space |
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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 |
Granted publication date: 20110126 Termination date: 20150505 |
|
| EXPY | Termination of patent right or utility model |