Aluminum material welded joint reinforcing structure

Abstract

The utility model provides a kind of aluminium material welded joint reinforcing structure, comprising: aluminium material vacuum tube and the joint assembly for aluminium material vacuum tube welding, joint assembly inside two ends are respectively inserted with aluminium material vacuum tube, and the outer surface of two aluminium material vacuum tubes is respectively detachably connected with first semicircle ring and second semicircle ring. First semicircle ring, second semicircle ring are fixed in aluminium material vacuum tube by bolt in early stage, avoid position deviation when welding, strengthen structural strength after welding, positioning lug and recessed groove cooperate to realize radial axial locking, prevent component displacement, ensure that weld is accurate, metal ring blocks metal powder from leaking out, recessed groove guides molten pool penetration to fit seam, form continuous sealing annular weld, substantially reduce vacuum leakage, semicircle ring and vacuum tube, fusion welding of welded joint, further improve overall connection strength, guarantee welding reliability and sealing.

Description

Technical Field

[0001] This utility model relates to the field of aluminum pipe connection technology, specifically to a reinforced structure for aluminum welded joints. Background Technology

[0002] Aluminum vacuum tubes are widely used in vacuum equipment, refrigeration systems, and aerospace fluid piping due to their light weight, strong corrosion resistance, and excellent thermal conductivity. The connection quality of these tubes directly affects the system's vacuum sealing, structural strength, and service life. Connections in aluminum vacuum tubes are typically achieved through welding, and the weld joint, as the core component of the connection, directly impacts the overall sealing, structural strength, and service life of the vacuum tube. In practical applications, the weld joints of aluminum vacuum tubes must meet the low leakage rate requirements of a vacuum environment while withstanding certain axial forces, radial forces, and stresses caused by temperature cycling.

[0003] However, current aluminum welded joint reinforcement structures often suffer from insufficient strength due to concentrated stress and lack of overall rigid support in the weld area during welding. They are also prone to deformation due to thermal stress during high-temperature welding, and micro-cracks may appear in the weld after cooling. In the long term, they may even break due to pressure or temperature fluctuations. Utility Model Content

[0004] The present invention aims to solve the problems mentioned in the background art by providing a reinforced structure for aluminum welding joints.

[0005] The specific technical solution is as follows:

[0006] A reinforced structure for aluminum welding joints includes: an aluminum vacuum tube and a joint assembly for welding the aluminum vacuum tube. The two ends of the joint assembly are respectively inserted into the aluminum vacuum tubes, and the outer surfaces of the two aluminum vacuum tubes are respectively detachably connected with a first semi-circular ring and a second semi-circular ring.

[0007] As a preferred embodiment of this utility model, the lower surface of the first semicircular ring and the upper surface of the second semicircular ring are respectively provided with ear plates. The ear plates of the first and second semicircular rings are provided with coaxial threaded holes. Bolts are threaded into the threaded holes. The first and second semicircular rings are attached to the outer surface of the aluminum vacuum tube by bolt connection.

[0008] As a preferred embodiment of this utility model, a metal sheet is provided on one side of the inner wall of the first semicircular ring and the second semicircular ring, and a plurality of positioning protrusions are provided on one side of the first semicircular ring and the second semicircular ring.

[0009] As a preferred embodiment of this utility model, the outer surfaces of the first semicircular ring and the second semicircular ring are provided with a plurality of slots, and reinforcing ribs are respectively provided in the plurality of slots. The reinforcing ribs are flush with the surfaces of the first semicircular ring and the second semicircular ring to enhance the structural strength.

[0010] As a preferred embodiment of the present invention, the joint assembly includes a welding head, an inner wall of which is fitted with a fitting cylinder, one end of each of the two aluminum vacuum tubes is inserted into the welding head and fitted with the surface of the fitting cylinder, and the welding head is provided with recessed grooves on both sides of the welding head at the same positions as the positioning protrusions, and the positioning protrusions are inserted into the recessed grooves.

[0011] As a preferred embodiment of this utility model, the welding head has outer circular grooves at both ends of its outer surface, and the lower surface of the inner wall of each of the two outer circular grooves has an inner recessed groove. The position of the inner recessed groove corresponds to the annular bonding seam of the aluminum vacuum tube and the bonding cylinder. A coaxial metal ring is provided in the outer circular groove. The metal ring is fitted to the outer wall of the outer circular groove to prevent the filling material from leaking out. Metal powder is filled between the metal ring and the inner recessed groove. The materials of the metal powder, the metal ring and the inner recessed groove are consistent with those of the aluminum vacuum tube, the welding head and the bonding cylinder and are adapted to the melting temperature.

[0012] This utility model has the following beneficial effects:

[0013] 1. The aluminum welding joint reinforcement structure provided by this utility model has a first semi-circular ring and a second semi-circular ring that are initially fixed to the aluminum vacuum tube with bolts to avoid positional deviation during welding. After welding, the structure is strengthened. The positioning protrusion and the recessed groove cooperate to achieve radial and axial locking, prevent component displacement, and ensure the accuracy of the weld. The metal ring blocks the leakage of metal powder, and the recessed groove guides the molten pool to penetrate the joint to form a continuous sealed annular weld, which greatly reduces vacuum leakage. The fusion welding of the semi-circular ring with the vacuum tube and the welding head further improves the overall connection strength and ensures welding reliability and sealing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the aluminum welding joint reinforcement structure provided in an embodiment of the present invention;

[0015] Figure 2 A schematic diagram of the joint assembly structure of the aluminum welding joint reinforcement structure provided in the embodiment of this utility model;

[0016] Figure 3 A schematic diagram of the reinforcing rib structure of the aluminum welding joint reinforcement structure provided in this embodiment of the utility model;

[0017] Figure 4 A schematic diagram of the recessed groove structure of the aluminum welding joint reinforcement structure provided in this embodiment of the utility model;

[0018] Figure 5 A schematic diagram of the bonding cylinder structure of the aluminum welding joint reinforcement structure provided in the embodiment of this utility model.

[0019] In the attached image:

[0020] 1. Aluminum vacuum tube;

[0021] 2. Connector assembly; 201. Welding head; 202. Recessed groove; 203. Fitting cylinder; 204. Outer circular groove; 205. Inner recessed groove; 206. Metal ring;

[0022] 3. First semicircular ring; 301. Second semicircular ring; 302. Positioning protrusion; 303. Reinforcing rib; 304. Ear plate; 305. Metal sheet. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1

[0028] The aluminum welding joint reinforcement structure provided in this embodiment, such as Figures 1-5 As shown, it includes: an aluminum vacuum tube 1 and a connector assembly 2 for welding the aluminum vacuum tube 1. Two aluminum vacuum tubes 1 are respectively inserted into the two ends of the connector assembly 2. A first semi-circular ring 3 and a second semi-circular ring 301 are respectively detachably connected to the outer surfaces of the two aluminum vacuum tubes 1. Ear plates 304 are provided at both ends of the lower surface of the first semi-circular ring 3 and both ends of the upper surface of the second semi-circular ring 301. The ear plates 304 of the first semi-circular ring 3 and the second semi-circular ring 301 have coaxial threaded holes on their surfaces. Bolts are threaded into the threaded holes. The first semi-circular ring 3 and the second semi-circular ring 301 are connected and attached to the outer surface of the aluminum vacuum tube 1 by bolts.

[0029] Through the design of the connector assembly 2, the first semicircular ring 3, and the second semicircular ring 301, the first semicircular ring 3 and the second semicircular ring 301 are connected to the coaxial threaded hole provided on the ear plate 304 by bolt thread, so that they fit against one end of the outer surface of the aluminum vacuum tube 1, thereby facilitating the fixing of the aluminum vacuum tube 1 and avoiding the problem of welding quality caused by its position deviation during welding. Furthermore, welding the first semicircular ring 3 and the second semicircular ring 301 can enhance its structural strength.

[0030] Example 2

[0031] The aluminum welding joint reinforcement structure provided in this embodiment, such as Figures 2-5 As shown, the assembly includes: metal sheets 305 on one side of the inner wall of the first semicircular ring 3 and the second semicircular ring 301, and multiple positioning protrusions 302 on one side of the first semicircular ring 3 and the second semicircular ring 301. Multiple slots are provided on the outer surface of the first semicircular ring 3 and the second semicircular ring 301, and reinforcing ribs 303 are respectively provided in the slots. The reinforcing ribs 303 are flush with the surfaces of the first semicircular ring 3 and the second semicircular ring 301 to enhance structural strength. The connector assembly 2 includes a welding head 201, with a fitting cylinder 203 installed on the inner wall of the welding head 201. One end of each of the two aluminum vacuum tubes 1 is inserted into the welding head 201 and fits against the surface of the fitting cylinder 203. Recessed grooves 202, with the same positions as the positioning protrusions 302, are provided on both sides of the welding head 201, and the positioning protrusions 302 are inserted into the recessed grooves 202. The welding head 201 has outer circular grooves 204 at both ends of its outer surface. The lower inner surface of the inner wall of each of the two outer circular grooves 204 has a recessed groove 205. The position of the recessed groove 205 corresponds to the annular bonding seam of the aluminum vacuum tube 1 and the bonding cylinder 203. A coaxial metal ring 206 is provided in the outer circular groove 204. The metal ring 206 is fitted to the outer wall of the outer circular groove 204 to prevent the filling material from leaking out. Metal powder is filled between the metal ring 206 and the recessed groove 205. The materials of the metal powder, the metal ring 206 and the recessed groove 205 are all the same as those of the aluminum vacuum tube 1, the welding head 201 and the bonding cylinder 203 and are compatible with the melting temperature.

[0032] Through the design of the welding head 201, the recessed groove 205, and the metal ring 206, the aluminum vacuum tube 1 is inserted into the welding head 201 and tightly fitted with the fitting cylinder 203 in the welding head 201. During the insertion of the aluminum vacuum tube 1, the positioning protrusions 302 on one side of the first semi-circular ring 301 and the second semi-circular ring 301 are inserted into the recessed groove 202 on one side of the welding head 201, achieving radial and axial locking, preventing component displacement during welding, and ensuring accurate weld position. After welding, the outer circular groove 204 on the outer surface of the welding head 201 is heated. The metal ring 206, because it fits against the outer wall of the outer circular groove 204, can effectively prevent the leakage of the internally filled metal powder. Then, as the temperature rises, the metal powder, the metal ring 206, and the recessed groove 205 melt simultaneously, forming an annular molten pool. Because the recessed groove 205 precisely corresponds to the annular bonding seam of the aluminum vacuum tube 1 and the bonding cylinder 203, the molten pool flows inward along the original position of the recessed groove 205, fully penetrating to the bonding seam, and fuses with the aluminum vacuum tube 1, the bonding cylinder 203, and the welding head 201 to form a continuous and sealed annular weld, improving the welding quality and reducing vacuum leakage. Then, the first semi-circular ring 3 and the second semi-circular ring 301 are melt-welded. The metal sheet 305 on the inner wall of the first semi-circular ring 3 and the second semi-circular ring 301 are melt-welded to the outer surface of the aluminum vacuum tube 1, fixing the semi-circular ring to the aluminum vacuum tube 1. Then, the positioning protrusion 302 is melt-welded to the contact surface of the recessed groove 202 of the welding head 201, rigidly connecting the semi-circular ring and the welding head 201. The bolts can be removed, thereby improving its welding strength.

[0033] In summary, the aluminum welding joint reinforcement structure provided in this embodiment has the following advantages: the rigidity is enhanced by the reinforcing ribs 303 of the semi-circular ring, the precise insertion of the positioning protrusion 302 and the recessed groove 202, and the overall welding of the semi-circular ring with the aluminum vacuum tube 1 and the welding head 201 can disperse stress during welding, improve the resistance to deformation, avoid cracks and fractures, and improve the welding strength of the joint.

[0034] In use, the aluminum vacuum tube 1 is inserted into the welding head 201 and tightly fitted with the bonding cylinder 203 in the welding head 201. During the insertion of the aluminum vacuum tube 1, the positioning protrusions 302 on one side of the first semi-circular ring 3 and the second semi-circular ring 301 are inserted into the recessed groove 202 on one side of the welding head 201 to achieve radial and axial locking. Then, the welding work is carried out. The outer circular groove 204 on the outer surface of the welding head 201 is heated. As the temperature rises, the metal powder, the metal ring 206, and the inner groove 205 melt simultaneously to form an annular molten pool. Since the inner groove 205 precisely corresponds to the annular bonding seam of the aluminum vacuum tube 1 and the bonding cylinder 203, the molten pool flows along the inner groove. The groove 205 flows inward from its original position, fully penetrating to the joint and fusing with the aluminum vacuum tube 1, the bonding cylinder 203, and the welding head 201 to form a continuous and sealed annular weld, improving welding quality and reducing vacuum leakage. Then, the first semi-circular ring 3 and the second semi-circular ring 301 are melt-welded. The metal sheet 305 on the inner wall of the first semi-circular ring 3 and the second semi-circular ring 301 are melt-welded to the outer surface of the aluminum vacuum tube 1, fixing the semi-circular ring to the aluminum vacuum tube 1. Then, the positioning protrusion 302 is melt-welded to the contact surface of the welding head 201 recessed in the groove 202, rigidly connecting the semi-circular ring and the welding head 201. The bolts can be removed, thereby improving the welding strength.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reinforced structure for aluminum welded joints, characterized in that, include: A connector assembly (2) for welding aluminum vacuum tubes (1) has aluminum vacuum tubes (1) inserted into its two ends, and a first semi-circular ring (3) and a second semi-circular ring (301) are respectively detachably connected to the outer surfaces of the two aluminum vacuum tubes (1).

2. The aluminum welded joint reinforcement structure according to claim 1, characterized in that, The lower surfaces of the first semicircular ring (3) and the upper surfaces of the second semicircular ring (301) are respectively provided with ear plates (304). The ear plates (304) of the first semicircular ring (3) and the second semicircular ring (301) are provided with coaxial threaded holes. Bolts are threaded into the threaded holes. The first semicircular ring (3) and the second semicircular ring (301) are attached to the outer surface of the aluminum vacuum tube (1) by bolt connection.

3. The aluminum welded joint reinforcement structure according to claim 2, characterized in that, Metal sheets (305) are provided on one side of the inner wall of the first semicircular ring (3) and the second semicircular ring (301), and multiple positioning protrusions (302) are provided on one side of the first semicircular ring (3) and the second semicircular ring (301).

4. The aluminum welded joint reinforcement structure according to claim 3, characterized in that, The outer surfaces of the first semicircular ring (3) and the second semicircular ring (301) are provided with a plurality of empty grooves, and each of the plurality of empty grooves is provided with a reinforcing rib (303). The reinforcing rib (303) is flush with the surface of the first semicircular ring (3) and the second semicircular ring (301) to enhance the structural strength.

5. The aluminum welded joint reinforcement structure according to claim 1, characterized in that, The connector assembly (2) includes a welding head (201), and a fitting cylinder (203) is installed on the inner wall of the welding head (201). One end of each of the two aluminum vacuum tubes (1) is inserted into the welding head (201) and fits against the surface of the fitting cylinder (203). The welding head (201) has recessed grooves (202) on both sides, which are in the same position as the positioning protrusions (302). The positioning protrusions (302) are inserted into the recessed grooves (202).

6. The aluminum welded joint reinforcement structure according to claim 5, characterized in that, The welding head (201) has outer circular grooves (204) at both ends of its outer surface. The inner wall of each of the two outer circular grooves (204) has an inner recess (205). The position of the inner recess (205) corresponds to the annular bonding seam of the aluminum vacuum tube (1) and the bonding cylinder (203). A coaxial metal ring (206) is provided in the outer circular groove (204). The metal ring (206) is fitted to the outer wall of the outer circular groove (204) to prevent the filling material from leaking out. Metal powder is filled between the metal ring (206) and the inner recess (205). The materials of the metal powder, the metal ring (206) and the inner recess (205) are consistent with those of the aluminum vacuum tube (1), the welding head (201) and the bonding cylinder (203) and are adapted to the melting temperature.

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