CN202447542U - Expansion bar for hole reaming of flat coil pipe with inner rib - Google Patents
Expansion bar for hole reaming of flat coil pipe with inner rib Download PDFInfo
- Publication number
- CN202447542U CN202447542U CN2011203234506U CN201120323450U CN202447542U CN 202447542 U CN202447542 U CN 202447542U CN 2011203234506 U CN2011203234506 U CN 2011203234506U CN 201120323450 U CN201120323450 U CN 201120323450U CN 202447542 U CN202447542 U CN 202447542U
- Authority
- CN
- China
- Prior art keywords
- rod
- coil pipe
- section
- expands
- cross
- 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
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to an expansion bar for hole reaming of a flat coil pipe with an inner rib, comprising an expansion bar. The expansion bar for hole reaming of a flat coil pipe with an inner rid is characterized in that the cross section of the expansion bar is nearly elliptical or oblate; the side of the top part of the expansion bar is provided with a circle of expansion joint, the maximal cross section of the expansion joint is slightly larger than the cross section of the inner wall of an approximately elliptical or flat oblate condensing pipe; and the central line of the middle part of the top end of the expansion bar, along the direction of a short axis, is provided with an inner undercutting groove. The expansion bar for hole reaming of a flat coil pipe with an inner rib has the advantages of easily reaming the elliptical or oblate coil pipe with an inner rib, so that the elliptical or oblate coil pipe with an inner rib is closely attached to heat radiation fins to guarantee future heat radiation efficiency.
Description
Technical field
The utility model relates to a kind of bloated rod that flat coil pipe with internal-rib is carried out reaming.
Background technology
Because high development of social economy, people are also more and more to demands for energy, cause the in short supply of the energy; In order to improve the quality of living, present residential area and office block will be used a large amount of refrigeration, heating equipment, if can improve the efficient of heat exchange; Then can cut down the consumption of energy,, adopt flat coil pipe now in order to improve the radiating effect of heat exchanger; And because flat tube stress-bearing capability aspect minor axis is poor; In case receive external force with regard to easy deformation, therefore in order to strengthen the non-deformability of flat tube, in the set inside of flat tube internal-rib.Because flat tube need carry out reaming when wearing radiating fin, and existing reaming can't be carried out reaming to the flat tube that internal-rib is arranged, therefore need the bloated rod of reaming be improved.
Summary of the invention
The purpose of the utility model is the problem that the bloated rod of reaming at present in the solution prior art can't carry out reaming to the flat tube with internal-rib, and a kind of bloated rod that flat coil pipe with internal-rib is carried out reaming is provided.A kind of bloated rod that flat coil pipe with internal-rib is carried out reaming of the utility model design; Comprise the rod that expands; It is characterized in that: the linear of the cross section of the rod that expands is near oval or near oblate; Avris at the top of the rod that expands has a circle expansion joint, and the maximum cross section at expansion joint place is a bit larger tham the cross section of inboard wall of nearly ellipse or oblate condenser pipe, at the middle part on the top of the rod that expands along offering an inner groove on the center line of short-axis direction.It is characterized in that: expansion joint is made up of three arc surfaces, and three smooth connections of arc surface have a round-corner transition to be connected between the top end face of top section arc surface and the rod that expands, back segment arc surface and bloated excellent smooth connection of barred body.It is characterized in that: the linear curve by the plurality of sections different curvature of the cross section of the rod that expands is formed.It is characterized in that: the linear of cross section of the rod that expands is made up of the plurality of sections straightway.It is characterized in that: the linear curve and the straightway mixing by the plurality of sections different curvature of the cross section of the rod that expands formed.The utility model has the advantages that and easily nearly ellipse that contains internal-rib or oblate coil pipe to be carried out reaming, make the nearly ellipse or the oblate coil pipe that contain internal-rib closely paste radiating efficiency after guaranteeing mutually with radiating fin.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated, accompanying drawing 1 is the structural representation of the utility model.
The specific embodiment
Comprise the rod 1 that expands among the figure; It is characterized in that: the linear of the cross section of the rod that expands is near oval or near oblate; Avris at the excellent top of expanding has a circle expansion joint 2; The maximum cross section at expansion joint place is a bit larger tham the cross section of inboard wall of nearly ellipse or oblate condenser pipe, at the middle part on the top of the rod that expands along offering an inner groove 3 on the center line of short-axis direction.It is characterized in that: expansion joint is made up of three arc surfaces 4, and three smooth connections of arc surface have a fillet 5 transition to be connected between the top end face of top section arc surface and the rod that expands, back segment arc surface and bloated excellent smooth connection of barred body.It is characterized in that: the linear curve by the plurality of sections different curvature of the cross section of the rod that expands is formed.It is characterized in that: the linear of cross section of the rod that expands is made up of the plurality of sections straightway.It is characterized in that: the linear curve and the straightway mixing by the plurality of sections different curvature of the cross section of the rod that expands formed.
When nearly ellipse or nearly oblate special-shaped coil pipe are inserted into radiating fin in a row on assembly line; This moment, nearly ellipse or nearly oblate special-shaped coil pipe were shape in upright arrangement, and the rod that will expand is installed on the press, aimed at nearly oval or nearly oblate special-shaped coil pipe; And the inner groove on the top of the rod that will expand is aimed at internal-rib; Press is depressed then, and bloated rod enters in nearly ellipse or the nearly oblate special-shaped coil pipe, and is promptly fastening with radiating fin behind ellipse or the nearly oblate special-shaped coil pipe distending one nearly.
Claims (5)
1. bloated rod that the flat coil pipe with internal-rib is carried out reaming; Comprise the rod that expands; It is characterized in that: the linear of the cross section of the rod that expands is near oval or near oblate; Avris at the top of the rod that expands has a circle expansion joint, and the maximum cross section at expansion joint place is a bit larger tham the cross section of inboard wall of nearly ellipse or oblate condenser pipe, at the middle part on the top of the rod that expands along offering an inner groove on the center line of short-axis direction.
2. by the described a kind of bloated rod that flat coil pipe with internal-rib is carried out reaming of claim 1; It is characterized in that: expansion joint is made up of three arc surfaces; Three smooth connections of arc surface; There is a round-corner transition to be connected between the top end face of top section arc surface and the rod that expands, back segment arc surface and bloated excellent smooth connection of barred body.
3. by the described a kind of bloated rod that flat coil pipe with internal-rib is carried out reaming of claim 1, it is characterized in that: the linear curve by the plurality of sections different curvature of the cross section of the rod that expands is formed.
4. by the described a kind of bloated rod that flat coil pipe with internal-rib is carried out reaming of claim 1, it is characterized in that: the linear of cross section of the rod that expands is made up of the plurality of sections straightway.
5. by the described a kind of bloated rod that flat coil pipe with internal-rib is carried out reaming of claim 1, it is characterized in that: the linear curve and the straightway mixing by the plurality of sections different curvature of the cross section of the rod that expands formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203234506U CN202447542U (en) | 2011-08-31 | 2011-08-31 | Expansion bar for hole reaming of flat coil pipe with inner rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203234506U CN202447542U (en) | 2011-08-31 | 2011-08-31 | Expansion bar for hole reaming of flat coil pipe with inner rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202447542U true CN202447542U (en) | 2012-09-26 |
Family
ID=46863437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203234506U Expired - Fee Related CN202447542U (en) | 2011-08-31 | 2011-08-31 | Expansion bar for hole reaming of flat coil pipe with inner rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202447542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023154665A1 (en) * | 2022-02-09 | 2023-08-17 | Titeflex Corporation | Reamers and methods of preparing tubing |
-
2011
- 2011-08-31 CN CN2011203234506U patent/CN202447542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023154665A1 (en) * | 2022-02-09 | 2023-08-17 | Titeflex Corporation | Reamers and methods of preparing tubing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202048825U (en) | Heat dissipation water fin of heat exchanger | |
| CN202447542U (en) | Expansion bar for hole reaming of flat coil pipe with inner rib | |
| CN104776669A (en) | High-efficiency refrigerator evaporator | |
| CN201116845Y (en) | Low wind-resistance pipe fin type air heat exchanger | |
| CN204787448U (en) | Expose formula refrigerator evaporimeter | |
| CN110953767A (en) | Air energy heat pump evaporator structure | |
| CN202129370U (en) | Expansion bar for hole enlargement of approximately elliptical or oblate irregular condensing tube | |
| CN103822511A (en) | Cooling plate | |
| CN203758329U (en) | Cooling board | |
| CN211739551U (en) | Air energy heat pump evaporator | |
| CN204757465U (en) | Little channel evaporator of easy drainage of piece formula is worn with flat pipe to intercooling refrigerator | |
| CN201592224U (en) | Expanding bar for expanding oval special-shaped condenser tubes | |
| CN201892467U (en) | Novel efficient heat exchanger | |
| CN202614057U (en) | Profiled radiating tube | |
| CN202420267U (en) | Corrugated blade pipe | |
| CN202734637U (en) | Finned heat exchange tube | |
| CN102135388A (en) | Triangular curved vortex generator type circular tube fin heat exchanger | |
| CN201637300U (en) | Heat exchanger of S-shaped discharge pipe grid plate | |
| CN204757467U (en) | Piece channel evaporator that declines is worn with flat pipe to intercooling refrigerator | |
| CN201828167U (en) | New type elliptical high efficiency heat exchanger | |
| CN204757466U (en) | Piece channel evaporator that declines is worn with flat pipe to direct -cooled refrigerator | |
| CN203642765U (en) | Longitudinal inward-concave heat dissipating tube and heat exchanger | |
| CN104075502A (en) | Plate type refrigerator evaporator with tubes arranged on same side and provided with 9-shaped upper and lower ends | |
| CN201715886U (en) | Aluminum extruded section warming heat radiator | |
| CN204593964U (en) | Be provided with the evaporator of refrigerator of high-efficiency thermoindicator room |
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: 20120926 Termination date: 20150831 |
|
| EXPY | Termination of patent right or utility model |