CN204300523U - Combined type Cu-AL pipe - Google Patents
Combined type Cu-AL pipe Download PDFInfo
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- CN204300523U CN204300523U CN201420738130.0U CN201420738130U CN204300523U CN 204300523 U CN204300523 U CN 204300523U CN 201420738130 U CN201420738130 U CN 201420738130U CN 204300523 U CN204300523 U CN 204300523U
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- aluminum pipe
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- copper
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Abstract
A kind of combined type Cu-AL pipe, comprises aluminum pipe, and aluminum pipe is divided into the end being positioned at two ends and the main part being positioned at centre, and the end of aluminum pipe is bell mouth shape, and aluminum pipe two ends are all provided with outer copper sleeve, interior copper sleeve and nut, and nut sleeve is contained on aluminum pipe.Combined type Cu-AL pipe structure is simple, aluminum pipe and two copper sleeves are fitted after enlarging all respectively, the flaring structure of three can be fitted tightly, damage can not be caused, improve accuracy of manufacturing, enhance the sealability of Cu-AL pipe, ensure that the performance that Cu-AL pipe is excellent, reduce technological requirement, improve manufacturing efficiency.
Description
Technical field
The utility model relates to a kind of connecting tube of idle call, specifically, is a kind of combined type Cu-AL pipe.
Background technique
The indoor set of air-conditioning and outdoor unit are by connecting tube refrigerant conveying, because the price of copper is higher, in order to save cost, current connection tube for air conditioner is mainly copper-aluminium welding pipe, reduce the cost of material of connecting tube, but it is also higher to the technological requirement of copper aluminium welding to produce copper-aluminium welding pipe, makes its cost of production still higher, production up-to-standard rate is low, and the risk of leakage is high.
The aluminum pipe of copper is surrounded by one end that first patent " a kind of non-welded copper-aluminium tube for air conditioner " (publication number: 200975568Y) and " pipe end compound structure of aluminum connecting pipe " (publication number: 201081062Y) are proposed a kind of non-solder, although this Cu-AL pipe solves the problems referred to above, still there is more deficiency.Because the hardness of copper is larger, varus is carried out in the front end of copper sheet pipe or copper sheath, technological requirement is high, and it is smooth to be also difficult to the double-layer structure after reaching varus, when aluminum pipe inserts, the enlarging operation of aluminum pipe is also difficult to realize, and can cause the damage of aluminum pipe and copper sheathing, reduces the tightness that copper aluminium connects further, reduce the Performance and quality of Cu-AL pipe, manufacturing efficiency is also lower.
Model utility content
The utility model is high for current non-welded copper-aluminium tube technological requirement, and difficult realization, easily cause damage, the problems such as Cu and Al combination tightness is poor, and unstable properties is of poor quality, and manufacturing efficiency is low, devise a kind of new combined type Cu-AL pipe.
Combined type Cu-AL pipe of the present utility model, comprises aluminum pipe, and aluminum pipe is divided into the end being positioned at two ends and the main part being positioned at centre, and the end of aluminum pipe is bell mouth shape, and aluminum pipe two ends are all provided with outer copper sleeve, interior copper sleeve and nut, and nut sleeve is contained on aluminum pipe.
Outer copper sleeve and interior copper sleeve are all divided into the direct tube section of tubular and the flared section of bell mouth shape.
The flared section outer wall of interior copper sleeve contacts with the inner wall of end of corresponding aluminum pipe, in the main part that the direct tube section of interior copper sleeve is inserted into copper pipe and with the contact internal walls of copper pipe main part.
The flared section inwall of outer copper sleeve is attached on the outer wall of corresponding aluminum pipe end, and the direct tube section of outer copper sleeve is attached on the outer wall of aluminum pipe main part.
Preferably, the interior edge face of outer copper sleeve aligns with the interior edge face of interior copper sleeve, aligns with the exterior edge face of interior copper sleeve in the exterior edge face of outer copper sleeve.
The beneficial effects of the utility model are: combined type Cu-AL pipe structure is simple, aluminum pipe and two copper sleeves are fitted after enlarging all respectively, the flaring structure of three can be fitted tightly, damage can not be caused, improve accuracy of manufacturing, enhance the sealability of Cu-AL pipe, ensure that the performance that Cu-AL pipe is excellent, reduce technological requirement, improve manufacturing efficiency.
Outer copper sleeve is concordant with the interior exterior edge face of interior copper sleeve, makes two of two pipe boxes parts all clamp aluminum pipe, further increases the tightness that copper sleeve is combined with aluminum pipe, improves the performance of Cu-AL pipe.
Accompanying drawing explanation
Accompanying drawing 1 is the structural drawing of combined type Cu-AL pipe.
Embodiment
Combined type Cu-AL pipe of the present utility model, as shown in Figure 1, comprises aluminum pipe 1, and aluminum pipe 1 is divided into the end 2 being positioned at two ends and the main part 3 being positioned at centre, and the end 2 of aluminum pipe 1 is bell mouth shape.
Aluminum pipe 1 two ends are all provided with outer copper sleeve 4, interior copper sleeve 5 and gland nut 6, and gland nut 6 is sleeved on aluminum pipe 1.
Outer copper sleeve 4 and interior copper sleeve 5 are all divided into the direct tube section 7 of tubular and the flared section 8 of bell mouth shape.
Flared section 8 outer wall of interior copper sleeve 5 and end 2 contact internal walls of corresponding aluminum pipe 1, in the main part 3 that the direct tube section 7 of interior copper sleeve 5 is inserted into copper pipe 1 and with the contact internal walls of copper pipe 1 main part 3.
Flared section 8 inwall of outer copper sleeve 4 is attached on the outer wall of corresponding aluminum pipe 1 end 2, and the direct tube section 7 of outer copper sleeve 4 is attached on the outer wall of aluminum pipe 1 main part 3.
The interior edge face of outer copper sleeve 4 aligns with the interior edge face of interior copper sleeve 5, aligns with the exterior edge face of interior copper sleeve 5 in the exterior edge face of outer copper sleeve 4.
Manufacture combined type Cu-AL pipe, need first to get an aluminum pipe 1, aluminum pipe 1 is inserted in two gland nuts, 6, two gland nuts 6 opposing.
Then get two bigbore copper sleeves, all enlarging is carried out to it, be processed into two outer copper sleeves 4.
Then install on aluminum pipe 1 by outer copper sleeve 4, the direct tube section 7 of two outer copper sleeves 4 is all inside, is set on aluminum pipe 1 by one end of aluminum pipe 1 correspondence.
Outer copper sleeve 4 all installs to after on aluminum pipe 1, carries out enlarging to the two ends of aluminum pipe 1, by the end 2 of aluminum pipe 1 all enlarging become bell mouth shape.
Outer copper sleeve 4 is all pulled out, flared section 8 inwall of outer copper sleeve 4 is attached on end 2 outer wall of aluminum pipe 1 bell mouth shape completely.
Finally get two small-bore copper sleeves, all enlarging is carried out to it, be processed into two interior copper sleeves 5.
The direct tube section 7 of two interior copper sleeves 5 is all inwardly inserted in the main part 3 of the corresponding one end of aluminum pipe 1, until flared section 8 outer wall of interior copper sleeve 5 is attached on the inwall of aluminum pipe 1 end 2 completely.
During use, pipe joint one end is inserted in the flared section 8 of interior copper sleeve 5, then gland nut 6 to be screwed on pipe joint and to tighten, make gland nut 6 and pipe joint compress the flared section 8 of the flared section 8 of outer copper sleeve 4, the end 2 of aluminum pipe and interior copper sleeve 5, complete the compact siro spinning technology of combined type Cu-AL pipe and pipe joint.
Claims (2)
1. a combined type Cu-AL pipe, it is characterized in that, comprise aluminum pipe (1), aluminum pipe (1) is divided into the end (2) being positioned at two ends and the main part (3) being positioned at centre, the end (2) of aluminum pipe (1) is bell mouth shape, aluminum pipe (1) two ends are all provided with outer copper sleeve (4), interior copper sleeve (5) and gland nut (6), gland nut (6) is sleeved on aluminum pipe (1)
Outer copper sleeve (4) and interior copper sleeve (5) are all divided into the direct tube section (7) of tubular and the flared section (8) of bell mouth shape,
Flared section (8) outer wall of interior copper sleeve (5) and end (2) contact internal walls of corresponding aluminum pipe (1), in the main part (3) that the direct tube section (7) of interior copper sleeve (5) is inserted into copper pipe (1) and with the contact internal walls of copper pipe (1) main part (3)
Flared section (8) inwall of outer copper sleeve (4) is attached on the outer wall of corresponding aluminum pipe (1) end (2), and the direct tube section (7) of outer copper sleeve (4) is attached on the outer wall of aluminum pipe (1) main part (3).
2. combined type Cu-AL pipe according to claim 1, it is characterized in that, the interior edge face of outer copper sleeve (4) aligns with the interior edge face of interior copper sleeve (5), aligns with the exterior edge face of interior copper sleeve (5) in the exterior edge face of outer copper sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738130.0U CN204300523U (en) | 2014-11-28 | 2014-11-28 | Combined type Cu-AL pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738130.0U CN204300523U (en) | 2014-11-28 | 2014-11-28 | Combined type Cu-AL pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300523U true CN204300523U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738130.0U Active CN204300523U (en) | 2014-11-28 | 2014-11-28 | Combined type Cu-AL pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455762A (en) * | 2014-11-28 | 2015-03-25 | 左铁军 | Combined copper aluminum tube and manufacturing method thereof |
-
2014
- 2014-11-28 CN CN201420738130.0U patent/CN204300523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455762A (en) * | 2014-11-28 | 2015-03-25 | 左铁军 | Combined copper aluminum tube and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |