Copper-aluminum connector of precise copper pipe for refrigeration equipment

Abstract

The utility model discloses a copper-aluminum joint of a precise copper pipe for refrigeration equipment, which comprises a copper pipe joint and an aluminum pipe joint, the copper pipe joint and the aluminum pipe joint are connected through welding, and pluggable annular mounting blocks are arranged on the surfaces of the copper pipe joint and the aluminum pipe joint. Connecting blocks are mounted at the top and the bottom of the annular mounting block correspondingly, and arc-shaped clamping blocks are arranged on the opposite sides of the two connecting blocks located on the same side correspondingly. Through mutual cooperation of an annular mounting block, a connecting block, an arc-shaped clamping block, a concave block, a top block, a threaded rod, a rotating block, a moving block, an adjusting block, a rubber block, a fixing ring and an annular anti-sliding block, the stability of a copper pipe and an aluminum pipe inserted into a copper-aluminum connector is guaranteed, and the effect of clamping and fixing the copper pipe and the aluminum pipe is achieved; the phenomenon that the copper pipe and the aluminum pipe are separated from the copper-aluminum connector in the later period is avoided, the stability when the copper pipe and the aluminum pipe are connected with the copper-aluminum connector is improved, and the service life when the copper pipe and the aluminum pipe are connected with the copper-aluminum connector is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of copper-aluminum joint technology, specifically a copper-aluminum joint for precision copper tubes used in refrigeration equipment. Background Technology

[0002] Refrigeration equipment typically requires copper and aluminum pipes. Copper-aluminum connectors are needed to connect copper and aluminum pipes.

[0003] According to application number CN201720837538.7, a copper-aluminum connector includes a connector body, which comprises a copper body and an aluminum body, and one end of the copper body is connected to one end of the aluminum body by friction welding.

[0004] The copper-aluminum connectors in the above cases are inconvenient for clamping and fixing the connected copper and aluminum pipes, which affects the stability of the copper and aluminum pipes when inserted into the copper-aluminum connectors. This can easily lead to the pipes and the copper-aluminum connectors separating later, affecting the normal use of the pipe connection and reducing its practicality. Therefore, we provide a copper-aluminum connector for precision copper pipes used in refrigeration equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a copper-aluminum connector for precision copper tubes used in refrigeration equipment, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a copper-aluminum connector for precision copper tubes in refrigeration equipment, comprising a copper tube connector and an aluminum tube connector, wherein the copper tube connector and the aluminum tube connector are connected by welding, and both the copper tube connector and the aluminum tube connector are provided with pluggable annular mounting blocks on their surfaces, wherein connecting blocks are installed at the top and bottom of the annular mounting blocks, and arc-shaped clamping blocks are provided on opposite sides of the two connecting blocks on the same side, thereby clamping and fixing the copper tube and aluminum tube inserted into the copper tube connector and the aluminum tube connector by the two arc-shaped clamping blocks, ensuring the stability of the tube body inserted into the copper-aluminum connector.

[0007] Preferably, it also includes two recessed blocks and two top blocks. The recessed blocks are installed on the connecting block located at the top. A threaded rod is rotatably connected to the groove at the bottom of the inner wall of the recessed block through a bearing. The top end of the threaded rod passes through the recessed block and the connecting block located at the top from bottom to top and extends to the outside of the connecting block. A rotating block is installed at the top end of the threaded rod. By operating the rotating block, the arc-shaped clamping block located at the top can move downward, so that the two arc-shaped clamping blocks located on the same side can clamp and fix the tube body.

[0008] Preferably, the surface of the threaded rod is threadedly connected to a movable block, and adjustment blocks are installed on both the left and right sides of the bottom of the movable block. The bottom of the adjustment block passes through the concave block and extends to its outside. The bottom of the adjustment block is fixedly connected to the arc-shaped clamping block located at the top.

[0009] Preferably, the top block is mounted on the connecting block located at the bottom, and the top of the top block is fixedly connected to the arc-shaped clamping block located at the bottom. Rubber blocks are installed on opposite sides of the two arc-shaped clamping blocks on the same side. By setting the rubber blocks, the friction force of the two arc-shaped clamping blocks when clamping and fixing the pipe body is increased, the stability of clamping and fixing is increased, and the phenomenon of direct contact between the arc-shaped clamping blocks and the pipe body causing damage to the surface of the pipe body is avoided.

[0010] Preferably, the two connecting blocks located on the same side are fixedly connected on opposite sides by a fixing ring. An annular anti-slip block is installed on the inner wall of the fixing ring. By setting the fixing ring, the stability of the tube inserted into the copper-aluminum joint is improved, which plays a supporting role for the tube inserted into the copper-aluminum joint. Moreover, the annular anti-slip block prevents the tube from directly contacting the fixing ring and avoids damage to the surface of the tube. The top of the annular mounting block is provided with a fastening bolt. The bottom end of the fastening bolt on the right side passes through the annular mounting block and is connected to the internal thread of the copper tube joint. The bottom end of the fastening bolt on the left side passes through the annular mounting block and is connected to the internal thread of the aluminum tube joint. By setting the fastening bolt, the annular mounting block can be removed from the copper-aluminum joint, so that the clamping and fixing structure can be reused.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model, through the mutual cooperation of annular mounting block, connecting block, arc-shaped clamping block, concave block, top block, threaded rod, rotating block, moving block, adjusting block, rubber block, fixing ring, and annular anti-slip block, ensures the stability of copper and aluminum pipes inserted into the copper-aluminum joint, effectively clamping and fixing the copper and aluminum pipes, preventing them from detaching from the joint later, improving the stability of the connection between the copper and aluminum pipes and the joint, and extending their service life. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the copper pipe connector, annular mounting block, fixing ring, and arc-shaped limiting block of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the connecting block, rotating block, buffer spring, fixing block, and arc-shaped limiting block of this utility model;

[0016] Figure 4 This is a structural cross-sectional view of the copper pipe connector, connecting block, rotating block, and arc-shaped limiting block of this utility model.

[0017] In the diagram: 1. Copper pipe connector, 2. Aluminum pipe connector, 3. Annular mounting block, 4. Connecting block, 5. Arc-shaped clamping block, 6. Concave block, 7. Top block, 8. Threaded rod, 9. Rotating block, 10. Moving block, 11. Adjusting block, 12. Rubber block, 13. Fixing ring, 14. Annular anti-slip block, 15. Fastening bolt, 16. Slide groove, 17. Slide rod, 18. Slider, 19. Buffer spring, 20. Fixing block, 21. Arc-shaped limiting block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 A copper-aluminum connector for precision copper tubing in refrigeration equipment includes a copper tubing connector 1 and an aluminum tubing connector 2, which are connected by welding. Both the copper tubing connector 1 and the aluminum tubing connector 2 have pluggable annular mounting blocks 3 on their surfaces. Connecting blocks 4 are fixedly connected to the top and bottom of the annular mounting blocks 3. Arc-shaped clamping blocks 5 are provided on opposite sides of the two connecting blocks 4 on the same side.

[0020] It also includes two recessed blocks 6 and two top blocks 7. The recessed blocks 6 are installed on the connecting block 4 located at the top. A threaded rod 8 is rotatably connected to the groove at the bottom of the inner wall of the recessed block 6 through a bearing. The top end of the threaded rod 8 passes through the recessed block 6 and the connecting block 4 located at the top from bottom to top and extends to the outside of the connecting block 4. A rotating block 9 is fixedly connected to the top end of the threaded rod 8. The side of the rotating block 9 close to the connecting block 4 is in rotatable contact with the connecting block 4. A moving block 10 is threadedly connected to the surface of the threaded rod 8. The surface of the moving block 10 is in sliding contact with the inner wall of the recessed block 6. Adjusting blocks 11 are fixedly connected to the left and right sides of the bottom of the moving block 10. The bottom of the adjusting block 11 passes through the recessed block 6 and extends to its outside. The bottom of the adjusting block 11 is fixedly connected to the arc-shaped clamping block 5 located at the top. The top block 7 is installed on the connecting block 4 located at the bottom. The top of the top block 7 is fixedly connected to the arc-shaped clamping block 5 located at the bottom. Rubber blocks 12 are fixedly connected to the opposite sides of the two arc-shaped clamping blocks 5 located on the same side.

[0021] Two connecting blocks 4 located on the same side are fixedly connected on opposite sides by a fixing ring 13. An annular anti-slip block 14 is fixedly connected to the inner wall of the fixing ring 13. The annular anti-slip block 14 is made of rubber. By setting the rubber block 12 and the annular anti-slip block 14, not only is the friction force when in contact with the pipe body improved, but the arc-shaped clamp 5 and the fixing ring 13 are also prevented from directly contacting the pipe body, thus avoiding wear on the surface of the pipe body. A fastening bolt 15 is set on the top of the annular mounting block 3. The bottom end of the fastening bolt 15 on the right side passes through the annular mounting block 3 and is connected to the internal thread of the copper pipe joint 1. The bottom end of the fastening bolt 15 on the left side passes through the annular mounting block 3 and is connected to the internal thread of the aluminum pipe joint 2.

[0022] Specifically, loosen the fastening bolt 15, and then pull the annular mounting block 3 so that the two annular mounting blocks 3 move away from each other and separate from the copper pipe joint 1 and the aluminum pipe joint 2 respectively. This allows the structure on the annular mounting block 3 to be disassembled for subsequent reuse.

[0023] Furthermore, a groove 16 is provided on the side of the connecting block 4 at the top away from the recess 6. The left and right sides of the inner wall of the groove 16 are fixedly connected by a sliding rod 17. A slider 18 is slidably connected to the surface of the sliding rod 17. A buffer spring 19 is sleeved on the surface of the sliding rod 17. A fixing block 20 is fixedly connected to the top of the slider 18. An arc-shaped limiting block 21 that works with the rotating block 9 is fixedly connected to the side of the fixing block 20 near the rotating block 9. The side of the arc-shaped limiting block 21 near the rotating block 9 is in contact with the rotating block 9. By setting the groove 16, sliding rod 17, slider 18, buffer spring 19, fixing block 20 and arc-shaped limiting block 21, the effect of limiting and fixing the rotating block 9 is improved, and the phenomenon of the rotating block 9 rotating on its own when not in use is avoided. Through the elastic force of the buffer spring 19, the arc-shaped limiting block 21 can be in close contact with the rotating block 9, which improves the stability of the rotating block 9 when not in use.

[0024] Furthermore, a handle is fixedly connected to the top of the fixing block 20, which facilitates the operation of the arc-shaped limiting block 21.

[0025] The interplay of the annular mounting block 3, connecting block 4, arc-shaped clamping block 5, concave block 6, top block 7, threaded rod 8, rotating block 9, moving block 10, adjusting block 11, rubber block 12, fixing ring 13, and annular anti-slip block 14 ensures the stability of the copper and aluminum pipes inserted into the copper-aluminum joint, effectively clamping and fixing them. This prevents the copper and aluminum pipes from detaching from the joint later, improving the stability of the connection and extending its service life.

[0026] In use, the copper tube passes through the annular anti-slip block 14 on the right and is inserted into the interior of the copper tube connector 1, while the aluminum tube passes through the annular anti-slip block 14 on the left and is inserted into the interior of the aluminum tube connector 2, so that the copper tube and the aluminum tube respectively come into contact with the rubber block 12 at the bottom.

[0027] First, by pulling the handle, the fixed block 20 is moved away from the rotating block 9. The fixed block 20 drives the slider 18 to squeeze the buffer spring 19. The fixed block 20 causes the arc-shaped limiting block 21 and the rotating block 9 to separate. Then, the rotating block 9 is rotated. The rotating block 9 drives the moving block 10 to move downward through the threaded rod 8. The moving block 10 drives the arc-shaped clamping block 5 at the top to move downward through the adjusting block 11, so that the rubber block 12 at the top is in close contact with the tube body, thereby clamping and fixing the copper tube and the aluminum tube. Then, the handle is released. Through the restoring force of the buffer spring 19, the buffer spring 19 drives the arc-shaped limiting block 21 to move closer to the rotating block 9, so that the arc-shaped limiting block 21 and the rotating block 9 are in close contact, ensuring the stability of the rotating block 9 when it is not in use.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A copper-aluminum connector for precision copper tubing in refrigeration equipment, characterized in that: It includes a copper pipe connector (1) and an aluminum pipe connector (2), which are connected by welding. Both the copper pipe connector (1) and the aluminum pipe connector (2) are provided with pluggable annular mounting blocks (3) on their surfaces. Both the top and bottom of the annular mounting blocks (3) are provided with connecting blocks (4), and both the two connecting blocks (4) on the same side are provided with arc-shaped clamping blocks (5) on opposite sides.

2. The copper-aluminum connector for a precision copper tube in a refrigeration equipment according to claim 1, characterized in that: It also includes two recessed blocks (6) and two top blocks (7). The recessed blocks (6) are installed on the connecting block (4) located at the top. A threaded rod (8) is rotatably connected to the groove at the bottom of the inner wall of the recessed block (6) by a bearing. The top end of the threaded rod (8) passes through the recessed block (6) and the connecting block (4) located at the top from bottom to top and extends to the outside of the connecting block (4). A rotating block (9) is installed on the top end of the threaded rod (8).

3. The copper-aluminum connector for a precision copper tube in a refrigeration device according to claim 2, characterized in that: The threaded rod (8) has a moving block (10) threadedly connected to its surface. Adjusting blocks (11) are installed on both the left and right sides of the bottom of the moving block (10). The bottom of the adjusting block (11) passes through the recess (6) and extends to its outside. The bottom of the adjusting block (11) is fixedly connected to the arc-shaped clamping block (5) located at the top.

4. The copper-aluminum connector for a precision copper tube in a refrigeration equipment according to claim 3, characterized in that: The top block (7) is mounted on the connecting block (4) located at the bottom. The top of the top block (7) is fixedly connected to the arc-shaped clamping block (5) located at the bottom. Rubber blocks (12) are installed on opposite sides of the two arc-shaped clamping blocks (5) located on the same side.

5. The copper-aluminum connector for a precision copper tube in a refrigeration device according to claim 4, characterized in that: The two connecting blocks (4) located on the same side are fixedly connected on opposite sides by a fixing ring (13). An annular anti-slip block (14) is installed on the inner wall of the fixing ring (13). A fastening bolt (15) is provided on the top of the annular mounting block (3). The bottom end of the fastening bolt (15) on the right side passes through the annular mounting block (3) and is connected to the internal thread of the copper pipe joint (1). The bottom end of the fastening bolt (15) on the left side passes through the annular mounting block (3) and is connected to the internal thread of the aluminum pipe joint (2).

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