Anti-oxidation composite aluminum pipe

Abstract

The utility model discloses an anti-oxidation composite aluminum pipe which comprises two splicing aluminum pipes, a connecting aluminum pipe is detachably installed between the two splicing aluminum pipes, a plurality of butt joint plates are fixed to the two ends of the connecting aluminum pipe, and strip-shaped anti-falling protrusions are arranged on the inner sides of the ends, away from the connecting aluminum pipe, of the butt joint plates. A plurality of positioning faces are arranged on the outer side of the end portion, connected with the connecting aluminum pipe, of the splicing aluminum pipe, a guiding inclined face is arranged at one end of each positioning face, an anti-disengaging groove is formed in the other end of each positioning face, and the anti-disengaging protrusions are connected to the inner sides of the anti-disengaging grooves in a clamped mode. The connecting aluminum pipe is pushed to be close to the end portion of the splicing aluminum pipe, in the process, it is guaranteed that the butt joint plate at the end portion of the connecting aluminum pipe is aligned with the guide inclined plane at the end portion of the splicing aluminum pipe, the connecting aluminum pipe and the splicing aluminum pipe are pressed, the anti-disengagement protrusion at the end portion of the butt joint plate is clamped into the inner side of the anti-disengagement groove, the procedure of the aluminum pipe is simplified, and the production efficiency is improved. The installation time of the aluminum pipe is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite aluminum tubes, in particular to an oxidation-resistant composite aluminum tube. Background Art

[0002] Aluminum tube is a kind of non-ferrous metal tube, which refers to a metal tubular material that is hollow along its entire longitudinal length by extrusion of pure aluminum or aluminum alloy. It is widely used in automobile, ship, aerospace, aviation, electrical appliances, agriculture, electromechanical, home furnishing and other industries.

[0003] Aluminum tubes can be divided into ordinary aluminum tubes and composite aluminum tubes. Composite aluminum tubes are composite materials made of metal aluminum and thermoplastic plastics as the base material through a composite technical process. Composite aluminum combines the advantages of metal tubes and non-metallic tubes. The metal layer of the composite aluminum tube is subjected to force, and the non-metallic layer protects the metal layer, which effectively prevents the metal layer in the composite aluminum tube from rusting or oxidation. The composite aluminum tube has a good anti-oxidation function, so the composite aluminum tube is also called an anti-oxidation composite aluminum tube.

[0004] However, the antioxidant composite aluminum tube is fixed by welding during splicing, which takes a long time to assemble. Moreover, the assembled antioxidant composite aluminum tube cannot be separated, which is not convenient for inspection, maintenance or recycling. Therefore, it does not meet the existing needs. In this regard, we propose an antioxidant composite aluminum tube. Utility Model Content

[0005] The utility model aims to provide an anti-oxidation composite aluminum tube to solve the problems proposed in the above-mentioned background technology that the anti-oxidation composite aluminum tube is fixed by welding during splicing, the assembly takes a long time, and the assembled anti-oxidation composite aluminum tube cannot be separated, which is inconvenient for inspection, maintenance or recycling.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an antioxidant composite aluminum tube, comprising two spliced ​​aluminum tubes, a connecting aluminum tube is detachably installed between the two spliced ​​aluminum tubes, a plurality of docking plates are fixed to both end portions of the connecting aluminum tubes, a strip-shaped anti-slip protrusion is provided on the inner side of the end portion of the docking plate away from the connecting aluminum tube, a plurality of positioning surfaces are provided on the outer side of the end portion where the spliced ​​aluminum tube is connected to the connecting aluminum tube, a guide slope is provided on one end of the positioning surface, an anti-slip groove is provided on the other end of the positioning surface, and the anti-slip protrusion is clamped on the inner side of the anti-slip groove.

[0007] Preferably, the anti-slip groove is arc-shaped, and the inclination angle between the guide slope and the axis of the spliced ​​aluminum tube is thirty degrees.

[0008] Preferably, the outer edge of the bottom and both end portions of the anti-slip protrusion are arc surfaces, and the radius of the arc surface is half of the thickness of the anti-slip protrusion.

[0009] Preferably, a positioning ring is fixed on the inner side of the end portion where the spliced ​​aluminum tube is connected to the connecting aluminum tube, and a sealing sleeve is inserted into the inner side of the connecting aluminum tube.

[0010] Preferably, the inner edge of the positioning ring is bent to one side in an L-shape, and both ends of the sealing sleeve are bent inwardly at 90 degrees.

[0011] Preferably, the sealing sleeve is made of rubber, and the end of the sealing sleeve is clamped between the positioning ring and the spliced ​​aluminum tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model pushes the connecting aluminum tube to approach the end of the spliced ​​aluminum tube. In this process, the butt plate at the end of the connecting aluminum tube is aligned with the guiding inclined surface of the end of the spliced ​​aluminum tube, and the connecting aluminum tube and the spliced ​​aluminum tube are pressed tightly. The anti-drop protrusion at the end of the butt plate is inserted into the inner side of the anti-drop groove, which simplifies the process of fitting the aluminum tube, shortens the installation time of the aluminum tube, and improves the construction efficiency.

[0014] 2. The utility model rotates the connected aluminum tube, and when the arc surface of the end of the anti-slip protrusion slides in contact with the bottom surface of the anti-slip groove, the anti-slip protrusion slides out of the anti-slip groove and the outer side of the spliced ​​aluminum tube on the docking plate is bent and deformed until the anti-slip protrusion layer is completely separated from the anti-slip groove, thereby realizing the separation of the connected aluminum tube and the spliced ​​aluminum tube and the recycling of the composite aluminum tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the spliced ​​aluminum tubes of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model connecting aluminum tubes;

[0018] Figure 4 It is a partial cross-sectional view of the sealing sleeve of the utility model.

[0019] In the figure: 1. Splicing aluminum tubes; 2. Connecting aluminum tubes; 3. Docking plate; 4. Anti-slip groove; 5. Positioning surface; 6. Guide slope; 7. Anti-slip protrusion; 8. Sealing sleeve; 9. Positioning ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] like Figures 1 to 3As shown, an antioxidant composite aluminum tube, a connecting aluminum tube 2 is detachably installed between two spliced ​​aluminum tubes 1, a plurality of docking plates 3 are fixed to both end portions of the connecting aluminum tube 2, a strip-shaped anti-slip protrusion 7 is provided on the inner side of the end portion of the docking plate 3 away from the connecting aluminum tube 2, a plurality of positioning surfaces 5 are provided on the outer side of the end portion where the spliced ​​aluminum tube 1 and the connecting aluminum tube 2 are connected, a guide inclined surface 6 is provided at one end of the positioning surface 5, an anti-slip groove 4 is provided at the other end of the positioning surface 5, the anti-slip protrusion 7 is clamped on the inner side of the anti-slip groove 4, the anti-slip protrusion 7 at the end portion of the docking plate 3 is clamped into the anti-slip groove 4, the spliced ​​aluminum tube 1 and the connecting aluminum tube 2 are quickly connected and assembled, the operation is time-saving and efficient.

[0022] The anti-slip groove 4 is arc-shaped, and the inclination angle between the guiding slope 6 and the axis of the spliced ​​aluminum tube 1 is thirty degrees. The bottom outer edge and both ends of the anti-slip protrusion 7 are both arc surfaces, and the radius of the arc surface is half of the thickness of the anti-slip protrusion 7, ensuring that the anti-slip protrusion 7 can slide along the surface of the guiding slope 6 when in contact with the guiding slope 6, so that the docking plate 3 is elastically bent through the positioning surface 5, and the anti-slip protrusion 7 is smoothly inserted into the inner side of the anti-slip groove 4. When the connected aluminum tube 2 rotates, the end of the anti-slip protrusion 7 slides against the bottom surface of the anti-slip groove 4, so that the docking plate 3 is bent and the anti-slip protrusion 7 is separated from the anti-slip groove 4, thereby realizing the separation of the connected aluminum tube 2 and the spliced ​​aluminum tube 1.

[0023] like Figure 4 As shown, a positioning ring 9 is fixed on the inner side of the end portion where the spliced ​​aluminum tube 1 and the connecting aluminum tube 2 are connected, a sealing sleeve 8 is inserted into the inner side of the connecting aluminum tube 2, the inner edge of the positioning ring 9 is bent in an L shape to one side, and both ends of the sealing sleeve 8 are bent inward at ninety degrees. The sealing sleeve 8 is made of rubber, and the end of the sealing sleeve 8 is clamped between the positioning ring 9 and the spliced ​​aluminum tube 1. The sealing sleeve 8 is used to ensure the sealing of the entire composite aluminum tube after the spliced ​​aluminum tube 1 and the connecting aluminum tube 2 are connected, so as to avoid leakage of the internal medium of the composite aluminum tube.

[0024] Working principle: When assembling the aluminum tubes, first insert one end of the sealing sleeve 8 into the positioning ring 9 on the inner wall of one of the spliced ​​aluminum tubes 1, then put the connecting aluminum tube 2 on the outside of the sealing sleeve 8, and push the connecting aluminum tube 2 to the end of the spliced ​​aluminum tube 1. In this process, ensure that the docking plate 3 at the end of the connecting aluminum tube 2 is aligned with the guiding slope 6 at the end of the spliced ​​aluminum tube 1, and press the connecting aluminum tube 2 and the spliced ​​aluminum tube 1. After the anti-slip protrusion 7 at the end of the docking plate 3 contacts the guiding slope 6, the anti-slip protrusion 7 fits the guiding slope 6 and slides to the positioning surface 5. When the aluminum tube 2 is connected to the spliced ​​aluminum tube 1, the end of the butt joint plate 3 is bent and deformed until the connected aluminum tube 2 is fitted with the spliced ​​aluminum tube 1. At this time, the butt joint plate 3 elastically recovers and inserts the anti-slip protrusion 7 into the inner side of the anti-slip groove 4 to realize the assembly and docking of the spliced ​​aluminum tube 1 and the connected aluminum tube 2. Finally, the other spliced ​​aluminum tube 1 is docked with the other end of the connected aluminum tube 2, which simplifies the process of assembling the aluminum tubes, shortens the installation time of the aluminum tubes, and improves the construction efficiency. The installed spliced ​​aluminum tube 1 and the connected aluminum tube 2 can be disassembled, which is convenient for the inspection and maintenance of the composite aluminum tube, or the recycling and reuse of the composite aluminum tube.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An anti-oxidation composite aluminum tube, comprising two spliced ​​aluminum tubes (1), characterized in that: A connecting aluminum tube (2) is detachably mounted between the two spliced ​​aluminum tubes (1), a plurality of butt plates (3) are fixed to both ends of the connecting aluminum tube (2), a strip-shaped anti-slip protrusion (7) is provided on the inner side of the end of the butt plate (3) away from the connecting aluminum tube (2), a plurality of positioning surfaces (5) are provided on the outer side of the end where the spliced ​​aluminum tube (1) and the connecting aluminum tube (2) are connected, a guide inclined surface (6) is provided at one end of the positioning surface (5), an anti-slip groove (4) is provided at the other end of the positioning surface (5), and the anti-slip protrusion (7) is clamped on the inner side of the anti-slip groove (4).

2. The anti-oxidation composite aluminum tube according to claim 1, characterized in that: The anti-slip groove (4) is arc-shaped, and the inclination angle between the guide slope (6) and the axis of the spliced ​​aluminum tube (1) is thirty degrees.

3. The anti-oxidation composite aluminum tube according to claim 2, characterized in that: The bottom outer edge and both end portions of the anti-slip protrusion (7) are both arc surfaces, and the radius of the arc surface is half the thickness of the anti-slip protrusion (7).

4. The anti-oxidation composite aluminum tube according to claim 1, characterized in that: A positioning ring (9) is fixed on the inner side of the end portion where the spliced ​​aluminum tube (1) is connected to the connecting aluminum tube (2), and a sealing sleeve (8) is inserted into the inner side of the connecting aluminum tube (2).

5. The anti-oxidation composite aluminum tube according to claim 4, characterized in that: The inner edge of the positioning ring (9) is bent toward one side in an L-shape, and the two ends of the sealing sleeve (8) are bent inward at ninety degrees.

6. The anti-oxidation composite aluminum tube according to claim 5, characterized in that: The sealing sleeve (8) is made of rubber, and an end of the sealing sleeve (8) is clamped between the positioning ring (9) and the spliced ​​aluminum tube (1).

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