CN215596633U - Durable copper-aluminum connecting pipe - Google Patents
Durable copper-aluminum connecting pipe Download PDFInfo
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- CN215596633U CN215596633U CN202122353016.9U CN202122353016U CN215596633U CN 215596633 U CN215596633 U CN 215596633U CN 202122353016 U CN202122353016 U CN 202122353016U CN 215596633 U CN215596633 U CN 215596633U
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- pipe
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- connecting piece
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Abstract
The utility model relates to the technical field of air conditioner accessories, in particular to a durable copper-aluminum connecting pipe which comprises a copper pipe, an aluminum pipe and a connecting piece, wherein the connecting piece comprises an inner pipe, an outer pipe and a bracket, the bracket is arranged in the middle between the inner pipe and the outer pipe, one end of the connecting piece is provided with a first cavity, the end part of the copper pipe is provided with a first connecting groove, the end part of the copper pipe is arranged in the first cavity, the inner pipe is matched with the first connecting groove, the durable copper-aluminum connecting pipe is characterized in that the aluminum pipe and the copper pipe are connected with the connecting piece, the inner pipe of the connecting piece provides good supporting performance, the outer pipe provides good protection, the connecting stability of the copper pipe and the aluminum pipe is good, the connecting part is closely attached to the connecting part of the copper pipe and the aluminum pipe, the first sealing gasket and the second sealing gasket are respectively arranged in the first cavity and the second cavity, and the tightness of the connection of the copper pipe, the aluminum pipe and the connecting piece is ensured, the thermal shrinkage sleeve is arranged on the outer side of the connecting piece, so that corrosion resistance protection is conveniently provided.
Description
Technical Field
The utility model relates to the technical field of air conditioner accessories, in particular to a durable copper-aluminum connecting pipe.
Background
As is well known, the air conditioner is the most effective device in cooling in summer and gradually becomes a necessary household appliance for the family, and the air conditioning connecting pipe is an important component in the installation process of the air conditioner and is an important pipe fitting for connecting the indoor unit and the outdoor unit of the air conditioner.
The air conditioner connecting pipe is generally a full copper pipe, the price of the full bobbin is high, and in order to reduce the cost, an aluminum pipe is adopted to replace a part of copper-aluminum connecting pipes of copper pipe body structures. The copper-aluminum connecting pipe is a pipe fitting obtained by welding a copper pipe and an aluminum pipe, but the inner diameter of the connecting part of the existing copper-aluminum pipe is reduced, a radial connecting surface exists, the resistance of a refrigerant in the flowing process of the pipe body is large, the flow velocity of the refrigerant is reduced, and the refrigerating effect of the air conditioner is influenced.
For example, the patent publication "CN 201225461Y" is named as: the utility model discloses a bending-resistant copper-aluminum pipe joint, and relates to a welding joint for dissimilar metals, in particular to a copper-aluminum pipe welding joint. The technical scheme includes that the copper pipe and the aluminum pipe are welded with each other, and a crack tending to the length direction of the copper pipe is arranged on the tail section of the copper pipe or a crack groove tending to the length direction of the copper pipe is arranged on the surface of the copper pipe. The structure can ensure that the copper pipe is not damaged in the most probable bending cracking area of the aluminum pipe on the joint when the bending radius of the copper pipe is too small and even the copper pipe is bent by 90 degrees, thereby ensuring the normal use of the copper pipe. According to the structure, the sheet-shaped structure separated along the length direction of the copper pipe or separated after being stressed is formed at the tail end of the copper pipe, so that a bending-resistant support is formed on the inner wall of the aluminum pipe near the welding joint of the copper-aluminum connecting pipe. When the connecting pipe is subjected to bending pressure, the tail end of the copper pipe forms a sheet support under the action of the cracking groove, and the tail end of the copper pipe does not crack and leak in the area with obvious local deformation resistance and destructive power to the aluminum pipe.
The existing anti-bending copper-aluminum pipe joint is found to have low supporting strength and poor corrosion resistance effect in use, the pipe diameter of the joint of a copper pipe and an aluminum pipe is changed, the equipment is not provided with a protection device, and the joint is easy to break, so that the use limitation is high.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the copper-aluminum connecting pipe which is durable, has anticorrosion protection and good supporting effect.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a durable copper-aluminum connecting pipe comprises a copper pipe, an aluminum pipe and a connecting piece, wherein the connecting piece comprises an inner pipe, an outer pipe and a bracket, the bracket is arranged in the middle between the inner pipe and the outer pipe, one end of the connecting piece is provided with a first cavity, the end part of the copper pipe is provided with a first connecting groove, the end part of the copper pipe is arranged in the first cavity, the inner pipe is matched with the first connecting groove, the other end of the connecting piece is provided with a second cavity, the end part of the aluminum pipe is provided with a second connecting groove, the end part of the aluminum pipe is arranged in the second cavity, external threads are arranged on the outer sides of the copper pipe, the aluminum pipe and the connecting piece, one end of the connecting piece is provided with a first nut, the copper pipe is connected with the connecting piece through the first nut, the second nut is arranged at the other end of the connecting piece, and the aluminum pipe is connected with the connecting piece through the second nut.
In order to ensure the flowing stability of the refrigerant, the utility model has the improvement that the inner diameters of the copper pipe, the aluminum pipe and the inner pipe are consistent.
In order to ensure the tightness of the connection of the connecting piece and the copper pipe and the aluminum pipe, the utility model improves that a first sealing gasket is arranged in the first cavity, and a second sealing gasket is arranged in the second cavity.
In order to enable the copper pipe to be tightly connected with the connecting piece, the utility model improves the structure that one end of the inner pipe is provided with a first slope, the inner side of the copper pipe is provided with a second slope, the second slope is connected with the first connecting groove, and the first slope is matched with the second slope.
In order to tightly connect the aluminum pipe with the connecting piece, the utility model improves that the other end of the inner pipe is provided with a third slope, the inner side of the aluminum pipe is provided with a fourth slope, the fourth slope is connected with the second connecting groove, and the third slope is matched with the fourth slope.
In order to protect the joint, the utility model has the improvement that friction grains are arranged on the outer sides of the first nut and the second nut, and a heat-shrinkable sleeve is arranged on the outer side of the connecting piece.
(III) advantageous effects
Compared with the prior art, the utility model provides a durable copper-aluminum connecting pipe which has the following beneficial effects:
according to the durable copper-aluminum connecting pipe, the aluminum pipe and the copper pipe are connected with the connecting piece, the inner pipe of the connecting piece provides good supporting performance, the outer pipe provides good protection, and the copper pipe and the aluminum pipe are good in connection stability.
According to the durable copper-aluminum connecting pipe, the connecting piece is closely attached to the joint of the copper pipe and the aluminum pipe, the first sealing gasket and the second sealing gasket are respectively arranged in the first cavity and the second cavity, and the tightness of connection of the copper pipe, the aluminum pipe and the connecting piece is guaranteed.
This durable copper aluminium connecting pipe is provided with the pyrocondensation cover in the connecting piece outside, conveniently provides corrosion-resistant protection.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially enlarged view of FIG. 1 according to the present invention;
fig. 3 is a front view of the structure of the present invention.
In the figure: 1. a copper pipe; 2. an aluminum tube; 3. a connecting member; 4. an inner tube; 5. an outer tube; 6. a support; 7. a first cavity; 8. a first connecting groove; 9. a second cavity; 10. a second connecting groove; 11. a first nut; 12. a second nut; 13. a first gasket; 14. a second gasket; 15. a first slope; 16. a second slope; 17. a third slope; 18. a fourth slope; 19. and (4) heat-shrinkable sleeves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a durable copper-aluminum connecting pipe comprises a copper pipe 1, an aluminum pipe 2 and a connecting piece 3, wherein the connecting piece 3 comprises an inner pipe 4, an outer pipe 5 and a bracket 6, the bracket 6 is arranged at the middle position between the inner pipe 4 and the outer pipe 5, one end of the connecting piece 3 is provided with a first cavity 7, the end of the copper pipe 1 is provided with a first connecting groove 8, the end of the copper pipe 1 is arranged in the first cavity 7, the inner pipe 4 is matched with the first connecting groove 8, the other end of the connecting piece 3 is provided with a second cavity 9, the end of the aluminum pipe 2 is provided with a second connecting groove 10, the end of the aluminum pipe 2 is arranged in the second cavity 9, the outer sides of the copper pipe 1, the aluminum pipe 2 and the connecting piece 3 are provided with external threads, one end of the connecting piece 3 is provided with a first nut 11, the copper pipe 1 is connected with the connecting piece 3 through the first nut 11, the other end of the connecting member 3 is provided with a second nut 12, and the aluminum pipe 2 and the connecting member 3 are connected by the second nut 12.
The inner diameters of the copper pipe 1, the aluminum pipe 2 and the inner pipe 4 are consistent, so that the flowing stability of a refrigerant at the position is ensured, and the fracture of a joint is prevented.
A first sealing gasket 13 is arranged in the first cavity 7, a second sealing gasket 14 is arranged in the second cavity 9, and the first sealing gasket 13 and the second sealing gasket 14 ensure the tightness of the connection of the copper pipe 1, the aluminum pipe 2 and the connecting piece 3.
The inner tube 4 one end is provided with first slope 15, 1 inboard of copper pipe is provided with second slope 16, second slope 16 with first connecting groove 8 is connected, first slope 15 and second slope 16 phase-match, and the inner tube 4 is laminated with copper pipe 1 junction closely, and the leakproofness is good.
The other end of the inner tube 4 is provided with a third slope 17, the inner side of the aluminum tube 2 is provided with a fourth slope 18, the fourth slope 18 is connected with the second connecting groove 10, the third slope 17 is matched with the fourth slope 18, the joint of the inner tube 4 and the aluminum tube 2 is closely attached, and the sealing performance is good.
Friction lines are arranged on the outer sides of the first nut 11 and the second nut 12, a heat-shrinkable sleeve 19 is arranged on the outer side of the connecting piece 3, the heat-shrinkable sleeve 19 provides corrosion-resistant protection to prevent substances in the air from corroding the equipment, and the friction lines enable the heat-shrinkable sleeve 19 to be tightly connected with the equipment.
In conclusion, when the durable copper-aluminum connecting pipe is used, the copper pipe 1 extends into the first cavity 7 of the connecting piece 3 to be contacted with the first sealing gasket 13, one end of the inner pipe 4 of the connecting piece 3 is provided with the first slope 15 to be matched with the second slope 16 at the end part of the first connecting groove 8 at the inner side of the copper pipe 1, the inner side of the first nut 11 is in a step shape, the first nut 11 is matched with the copper pipe 1 and the external thread of the connecting piece 3 to enable the copper pipe 1 and the connecting piece 3 to be tightly connected, the aluminum pipe 2 extends into the second cavity 9 of the connecting piece 3 to be contacted with the second sealing gasket 14, the other end of the inner pipe 4 of the connecting piece 3 is provided with the third slope 17 to be matched with the fourth slope 18 at the end part of the second connecting groove 10 at the inner side of the aluminum pipe 2, the inner side of the second nut 12 is in a step shape, the second nut 12 is matched with the external thread of the aluminum pipe 2 and the connecting piece 3 to enable the aluminum pipe 2 and the connecting piece 3 to be tightly connected, and the inner pipe 4 of the connecting piece 3 provides stable support for the aluminum pipe 2 and the copper pipe 1, the outer tube 5 provides good protection for the aluminum tube 2 and the copper tube 1, and a heat-shrinkable film is arranged outside the connecting piece 3 to prevent the device from being corroded.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122353016.9U CN215596633U (en) | 2021-09-27 | 2021-09-27 | Durable copper-aluminum connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122353016.9U CN215596633U (en) | 2021-09-27 | 2021-09-27 | Durable copper-aluminum connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596633U true CN215596633U (en) | 2022-01-21 |
Family
ID=79870240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122353016.9U Expired - Fee Related CN215596633U (en) | 2021-09-27 | 2021-09-27 | Durable copper-aluminum connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596633U (en) |
-
2021
- 2021-09-27 CN CN202122353016.9U patent/CN215596633U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20220121 |