Aluminum pipe with sealing connection structure

Abstract

The utility model discloses an aluminum pipe with a sealing connecting structure, which comprises an aluminum pipe main body, an aluminum pipe body and connecting pipe heads which are combined and connected with the end parts of the two ends of the aluminum pipe body, first trapezoidal teeth which are uniformly distributed are arranged in the aluminum pipe body, second trapezoidal teeth which are uniformly distributed are arranged in the connecting pipe heads, and the second trapezoidal teeth are arranged in the connecting pipe heads. A sealing inner ring and a sealing outer ring are arranged on the surface of one end of the connecting pipe head; the sealing piece is installed on the outer side of the end of the aluminum pipe body and comprises a fixed outer ring and a moving assembly, the connecting pipe head is annularly sleeved with the fixed outer ring, the moving assembly is installed on the outer side of the aluminum pipe body, and the moving assembly comprises a stabilizing ring, a moving outer ring and a first fixed ring integrally connected with the moving outer ring, and the stabilizing ring and the moving outer ring are arranged on the aluminum pipe body in a sleeving mode; the end portion of the aluminum pipe body is provided with a connection design convenient to combine, when the aluminum pipe body is assembled, the aluminum pipe body is combined with the connection pipe head in a sealing mode, the connection pipe head is combined with the refrigeration heat exchange equipment frame, convenient installation of the aluminum pipe body is achieved, and the split type aluminum pipe body is convenient to disassemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum tubes and pipes, and particularly relates to an aluminum tube with a sealed connection structure. Background Art

[0002] Aluminum tubes are made of aluminum or aluminum alloy, which are extruded into metal tubular materials that are hollow along their entire longitudinal length. Aluminum tubes have a wide range of applications and demands in the market, and are widely used in the fields of construction, aerospace, refrigeration and thermal engineering, and new energy.

[0003] When hollow aluminum tubes are used in parts of refrigeration and heat exchange equipment, the annular surface of the aluminum tube is generally tightly fitted with the contact surface of the equipment frame and connected by welding to achieve a firm and sealed effect. However, in this method, the aluminum tube is prone to skewness during welding, resulting in uneven welding and cracks. In addition, in this method, the aluminum tube is inconvenient to disassemble and assemble, which is not conducive to replacing the aluminum tube.

[0004] During installation, existing aluminum tubes have a problem that the ends of the aluminum tubes do not have a connection design that is convenient for assembly. Therefore, the present application proposes an aluminum tube with a sealed connection structure. Utility Model Content

[0005] The purpose of the utility model is to provide an aluminum tube with a sealed connection structure to solve the problem in the above background technology that the ends of the aluminum tubes have no convenient connection design for assembly.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: an aluminum tube with a sealed connection structure, comprising

[0007] The aluminum tube body comprises an aluminum tube body and a connecting pipe head assembled and connected to the end portions of the aluminum tube body, wherein the interior of the aluminum tube body is provided with evenly distributed first trapezoidal teeth, the interior of the connecting pipe head is provided with evenly distributed second trapezoidal teeth, and a sealing inner ring and a sealing outer ring are provided on the surface of one end of the connecting pipe head;

[0008] The sealing member installed on the outside of the end of the aluminum tube body includes a fixed outer ring that is sleeved on the outside of the connecting pipe head, a movable component installed on the outside of the aluminum tube body, and the movable component includes a stabilizing ring and a movable outer ring sleeved on the aluminum tube body, and a first fixed ring integrally connected to the movable outer ring.

[0009] Preferably, the inner surface of the end portion of the aluminum tube body is provided with a circular groove a1 that cooperates with the sealing inner ring, and the outer surface of the end portion of the aluminum tube body is provided with a circular groove a2 that cooperates with the sealing outer ring.

[0010] Preferably, the gaps between adjacent first trapezoidal teeth match the corresponding second trapezoidal teeth.

[0011] Preferably, the connecting pipe head is located between the sealing inner ring and the sealing outer ring and is provided with a sealing rubber ring on the surface facing the aluminum tube body.

[0012] Preferably, a second fixed ring with its center on the same axis is provided inside the fixed outer ring, and the outer surface composed of the movable outer ring and the first fixed ring forms a circular groove b that cooperates with the fixed outer ring.

[0013] Preferably, the stabilizing ring is provided with a tensile steel strand passing through the movable outer ring, the inner surface of the first fixed ring is provided with evenly distributed limiting plates, one end of the tensile steel strand is connected to the limiting plate, the side of the fan-shaped limiting plate away from the first fixed ring is a semicircular protrusion, and the outer surface of one end of the second fixed ring is provided with a limiting ring groove that cooperates with the semicircular protrusion on the limiting plate.

[0014] Preferably, the outer surfaces of the stabilizing ring and the movable outer ring are provided with a concave rectangular bonding groove B.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the utility model, the end of the aluminum tube body is provided with a connection design for convenient assembly. When assembling the aluminum tube body, it is first sealed and combined with the connecting pipe head, and then the connecting pipe head is combined with the refrigeration and heat exchange equipment frame by conventional means (bolt connection), so as to realize convenient installation of the aluminum tube body and facilitate disassembly of the split aluminum tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 3 This is a side structural diagram of the aluminum tube body of the present invention;

[0020] Figure 4 This is a side structural diagram of the connecting pipe head of the utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the connecting pipe head of the utility model;

[0022] Figure 6 This is a schematic cross-sectional structural diagram of the movable outer ring of the present utility model;

[0023] Figure 7 This is a side structural diagram of the movable outer ring of the present utility model;

[0024] In the figure: 11, aluminum tube body; 12, connecting pipe head; 21, stabilizing ring; 22, movable outer ring; 23, first fixed ring; 31, fixed outer ring; 32, second fixed ring; 111, first trapezoidal teeth; 121, second trapezoidal teeth; 122, sealing inner ring; 123, sealing rubber ring; 124, sealing outer ring; 211, stretched steel strand; 231, limiting plate; 321, limiting ring groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] See also Figures 1 to 7The utility model provides a technical solution: an aluminum tube with a sealed connection structure, including an aluminum tube body, including an aluminum tube body 11, and a connecting pipe head 12 combined with the end portions of the aluminum tube body 11. The aluminum tube body 11 and the connecting pipe head 12 are a combined structure, and the aluminum tube body 11 can be disassembled. When the aluminum tube body 11 is used in the field of refrigeration and heat exchange, when the aluminum tube body 11 is installed between the opposing connecting pipe heads 12, the connecting pipe head 12 can be combined with the refrigeration and heat exchange equipment frame by conventional methods (such as bolt connection). The interior of the aluminum tube body 11 is provided with uniformly distributed The first trapezoidal teeth 111 of the connecting pipe head 12 are integrally cast with the aluminum tube body 11. The interior of the connecting pipe head 12 is provided with uniformly distributed second trapezoidal teeth 121. The connecting pipe head 12 and the second trapezoidal teeth 121 are integrally cast. A sealing inner ring 122 and a sealing outer ring 124 are provided on the surface of one end of the connecting pipe head 12. The sealing inner ring 122 and the sealing outer ring 124 are integrally cast with the connecting pipe head 12. When the corresponding aluminum tube body 11 and the connecting pipe head 12 are combined, the second trapezoidal teeth 121 are inserted between the adjacent first trapezoidal teeth 111. The aluminum tube body 11 and the connecting pipe head 12 are accurately combined; the sealing member installed on the outside of the end of the aluminum tube body includes a fixed outer ring 31 sleeved on the outside of the connecting pipe head 12, and a moving component installed on the outside of the aluminum tube body 11. The connecting pipe head 12 and the fixed outer ring 31 are combined by conventional methods (such as welding). The moving component includes a stabilizing ring 21 and a moving outer ring 22 sleeved on the aluminum tube body 11, and a first fixed ring 23 integrally connected to the moving outer ring 22. The moving outer ring 22 and the first fixed ring 23 are integrally cast. The aluminum tube body 11 and the connecting pipe head are accurately combined; the sealing member installed on the outside of the aluminum tube body end includes a fixed outer ring 31 sleeved on the outside of the connecting pipe head 12, and a moving component installed on the outside of the aluminum tube body 11. The connecting pipe head 12 and the fixed outer ring 31 are combined by conventional methods (such as welding). The moving component includes a stabilizing ring 21 and a moving outer ring 22 sleeved on the aluminum tube body 11, and a first fixed ring 23 integrally connected to the moving outer ring 22. The moving outer ring 22 and the first fixed ring 23 are integrally cast. When the pipe head 12 is assembled, the sealing inner ring 122 is embedded in the annular groove a1, and the sealing outer ring 124 is embedded in the annular groove a2, so that the end of the aluminum tube body 11 is limited by the connecting pipe head 12, and the joint surface of the aluminum tube body 11 and the connecting pipe head 12 is in a sealed state. The movable outer ring 22 rotates, and the first fixed ring 23 with an external thread is screwed together with the fixed outer ring 31 through a threaded engagement. The combination of the movable outer ring 22 and the first fixed ring 23 is stable, and the first fixed ring 23 and the fixed outer ring 31 seal the joint gap between the aluminum tube body 11 and the connecting pipe head 12 to achieve a sealing effect.

[0028] In this embodiment, the inner surface of the end of the aluminum tube body 11 is provided with a circular groove a1 that cooperates with the sealing inner ring 122, and the outer surface of the end of the aluminum tube body 11 is provided with a circular groove a2 that cooperates with the sealing outer ring 124. The sealing inner ring 122 is embedded in the circular groove a1, and the sealing outer ring 124 is embedded in the circular groove a2, so that the end of the aluminum tube body 11 is restricted by the connecting pipe head 12, and the gap between adjacent first trapezoidal teeth 111 cooperates with the corresponding second trapezoidal teeth 121. The second trapezoidal teeth 121 are inserted between the adjacent first trapezoidal teeth 111. The aluminum tube body 11 and the connecting pipe head 12 are accurately combined. The connecting pipe head 12 is located between the sealing inner ring 122 and the sealing outer ring 124 and is provided with a sealing rubber ring 123 on the surface facing the aluminum tube body 11. The sealing rubber ring 123 plays a sealing role.

[0029] In this embodiment, a second fixed ring 32 with its center on the same axis is provided inside the fixed outer ring 31. The second fixed ring 32 and the fixed outer ring 31 are cast as one piece. The outer surface composed of the movable outer ring 22 and the first fixed ring 23 forms a circular ring groove b that cooperates with the fixed outer ring 31. The outer diameter of the movable outer ring 22 is the same as the outer diameter of the fixed outer ring 31.

[0030] In this embodiment, a tensile steel strand 211 is provided on the stabilizing ring 21 and passes through the movable outer ring 22. The inner surface of the first fixed ring 23 is provided with a uniformly distributed limiting plate 231. One end of the tensile steel strand 211 is connected to the limiting plate 231. When the stabilizing ring 21 is pulled, the tensile steel strand 211 pulls the limiting plate 231. The limiting plate 231 is made of spring steel material. The pulled limiting plate 231 is in a deformed state and does not affect the second fixed ring 32 from being embedded in the interior of the movable outer ring 22. The side of the fan-shaped limiting plate 231 away from the first fixed ring 23 is a semicircular protrusion. The outer surface of one end of the second fixed ring 32 is provided with a limiting ring groove 321 that cooperates with the semicircular protrusion on the limiting plate 231. The semicircular protrusion is embedded in the limiting ring groove 321 to limit the second fixed ring 32.

[0031] In this embodiment, the outer surfaces of the stabilizing ring 21 and the movable outer ring 22 are provided with concave rectangular bonding grooves B. Glue is filled in the bonding grooves B to increase the firmness of the stabilizing ring 21 and the movable outer ring 22.

[0032] The working principle and use process of this utility model:

[0033] When the aluminum tube body 11 and the connecting pipe head 12 are assembled, one end of the aluminum tube body 11 is inserted into the interior of the connecting pipe head 12;

[0034] The second trapezoidal teeth 121 are inserted between the adjacent first trapezoidal teeth 111, so that the aluminum tube body 11 and the connecting tube head 12 are accurately combined;

[0035] At the same time, the inner sealing ring 122 is embedded in the annular groove a1, and the outer sealing ring 124 is embedded in the annular groove a2, so that the end of the aluminum tube body 11 is limited by the connecting pipe head 12;

[0036] The sealing rubber ring 123 plays the role of sealing the aluminum tube body 11 and the inner ring 122;

[0037] The movable outer ring 22 rotates, and the first fixed ring 23 with external threads is screwed together with the fixed outer ring 31 through threads. The movable outer ring 22 and the first fixed ring 23 are stably combined. The first fixed ring 23 and the fixed outer ring 31 seal the joint gap between the aluminum tube body 11 and the connecting pipe head 12 to achieve a sealing effect.

[0038] The semicircular protrusion on the limiting plate 231 is embedded in the limiting ring groove 321, so that the second fixed ring 32 is limited, and the connection between the movable outer ring 22 and the fixed outer ring 31 is stable;

[0039] Glue is filled in the bonding groove B to increase the firmness of the stabilizing ring 21 and the movable outer ring 22. The connecting pipe head 12 can be assembled with the refrigeration and heat exchange equipment frame by bolts to realize the installation of the aluminum tube body 11.

[0040] To sum up: the end of the aluminum tube body 11 is provided with a connection design that is convenient for assembly. When assembling the aluminum tube body 11, it is first sealed and combined with the connecting pipe head 12. Then the connecting pipe head 12 is combined with the refrigeration and heat exchange equipment frame through conventional means (bolt connection) to achieve convenient installation of the aluminum tube body 11 and facilitate disassembly of the split aluminum tube body 11.

[0041] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum tube with a sealed connection structure, characterized in that: include An aluminum tube body comprises an aluminum tube body (11) and a connecting tube head (12) connected to the ends of both ends of the aluminum tube body (11); the interior of the aluminum tube body (11) is provided with uniformly distributed first trapezoidal teeth (111); the interior of the connecting tube head (12) is provided with uniformly distributed second trapezoidal teeth (121); and a sealing inner ring (122) and a sealing outer ring (124) are provided on the surface of one end of the connecting tube head (12); A sealing member installed on the outside of the end of the aluminum tube body comprises a fixed outer ring (31) sleeved on the outside of the connecting pipe head (12), a movable assembly installed on the outside of the aluminum tube body (11), the movable assembly comprising a stabilizing ring (21) sleeved on the aluminum tube body (11) and a movable outer ring (22), and a first fixed ring (23) integrally connected to the movable outer ring (22).

2. The aluminum tube with a sealed connection structure according to claim 1, characterized in that: The inner surface of the end of the aluminum tube body (11) is provided with a circular annular groove a1 that cooperates with the sealing inner ring (122), and the outer surface of the end of the aluminum tube body (11) is provided with a circular annular groove a2 that cooperates with the sealing outer ring (124).

3. The aluminum tube with a sealed connection structure according to claim 1, characterized in that: The gaps between adjacent first trapezoidal teeth (111) are matched with corresponding second trapezoidal teeth (121).

4. The aluminum tube with a sealed connection structure according to claim 1, characterized in that: The connecting pipe head (12) is located between the sealing inner ring (122) and the sealing outer ring (124) and is provided with a sealing rubber ring (123) on the surface facing the aluminum tube body (11).

5. The aluminum tube with a sealed connection structure according to claim 1, characterized in that: A second fixed ring (32) having its center on the same axis is provided inside the fixed outer ring (31); and an outer surface composed of the movable outer ring (22) and the first fixed ring (23) forms an annular groove b that cooperates with the fixed outer ring (31).

6. The aluminum tube with a sealed connection structure according to claim 5, characterized in that: The stabilizing ring (21) is provided with a tensile steel strand (211) passing through the movable outer ring (22); the inner surface of the first fixed ring (23) is provided with uniformly distributed limiting plates (231); one end of the tensile steel strand (211) is connected to the limiting plate (231); the side of the fan-shaped limiting plate (231) away from the first fixed ring (23) is a semicircular protrusion; the outer surface of one end of the second fixed ring (32) is provided with a limiting ring groove (321) that cooperates with the semicircular protrusion on the limiting plate (231).

7. The aluminum tube with a sealed connection structure according to claim 1, characterized in that: The outer surfaces of the stabilizing ring (21) and the movable outer ring (22) are provided with a concave rectangular bonding groove B.

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