A copper-aluminum pipe fitting for a refrigeration system

Abstract

This utility model relates to the field of refrigeration system technology, and in particular to a copper-aluminum pipe connector for refrigeration systems. It includes a connector tube, with a copper pipe and an aluminum pipe body threaded to both ends of the connector tube. The connector tube is equipped with an opening and closing mechanism, and the ends of the copper pipe and aluminum pipe body are equipped with a fixing mechanism. The fixing mechanism includes two mounting rings, which are respectively fixedly mounted on the copper pipe and aluminum pipe body. A first spring is fixedly mounted on the side of each mounting ring, and a first pin is fixedly mounted on one end of the first spring. This utility model, by providing an opening and closing mechanism, aims to increase the opening and closing function of the copper-aluminum pipe connector, thereby improving its practicality. The fixing mechanism, after the copper pipe and aluminum pipe body are threadedly connected to the connector tube, serves to limit the movement of the copper pipe and aluminum pipe body, preventing rotation.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration system technology, and in particular to a copper-aluminum pipe joint for refrigeration systems. Background Technology

[0002] A refrigeration system is a device that transfers heat through mechanical or thermodynamic cycles, primarily used to cool or maintain low-temperature environments. Its core components include a compressor, condenser, expansion valve, and evaporator, utilizing the phase change cycle of the refrigerant to absorb and release heat. Widely used in household air conditioners, refrigerators, industrial refrigeration, and cold chain logistics, it features high efficiency, energy saving, and precise temperature control, making it an indispensable technology in modern life and industrial production.

[0003] In refrigeration systems, copper and aluminum pipes are commonly used piping materials. Due to the differences in physical properties between copper and aluminum, special fittings are required to achieve a reliable connection. Most existing copper and aluminum pipe fittings can only achieve basic connection functions and lack opening and closing functions. In actual use, when it is necessary to maintain, repair, or replace pipes in the refrigeration system, it is not easy to control the flow of refrigerant in the pipes, which increases the difficulty and complexity of operation.

[0004] Furthermore, existing copper-aluminum pipe fittings lack effective restraint measures for the copper and aluminum pipes after they are connected. When the fitting is subjected to external forces or vibrations generated during system operation, the copper and aluminum pipes are prone to rotation, leading to loose connections. This can affect the sealing and stability of the refrigeration system and may even cause serious problems such as refrigerant leakage. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a copper-aluminum pipe connector for a refrigeration system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a copper-aluminum pipe connector for a refrigeration system, including a connector pipe, with a copper pipe and an aluminum pipe body respectively threaded to both ends of the connector pipe. The connector pipe is provided with an opening and closing mechanism, and the ends of the copper pipe and the aluminum pipe body are provided with a fixing mechanism. The fixing mechanism includes two mounting rings, which are respectively fixedly installed on the copper pipe and the aluminum pipe body. A first spring is fixedly installed on the side of the mounting ring, and a first pin is fixedly installed on one end of the first spring. One end of the first pin passes through the side of the mounting ring. A sleeve is fixedly installed on the connector pipe.

[0008] The opening and closing mechanism includes a shaft, which is rotatably connected to the top end of the connector tube. The bottom end of the shaft passes through the connector tube and a ball is fixedly installed thereon. The ball rotates on the inner wall of the connector tube. A through hole is provided on the ball. A gear is fixedly installed at the top end of the shaft.

[0009] Furthermore, the mounting ring is vertically positioned and is circular in shape.

[0010] Furthermore, the first pin has a T-shaped cross-section and is horizontally positioned.

[0011] Furthermore, a plug-in block is fixedly installed on the side of the mounting ring. The plug-in block is circular in shape, and a sealing ring is provided at the end of the plug-in block. The sealing ring is also circular in shape.

[0012] Furthermore, the end of the connector tube is provided with a plug groove, the plug groove is circular in shape, there are two plug grooves, and the cross-sectional dimensions of the plug groove are adapted to the cross-sectional dimensions of the plug block.

[0013] Furthermore, the shaft is vertically positioned and is cylindrical in shape, while the gear is horizontally positioned.

[0014] Furthermore, a vertical plate is fixedly installed at the top of the connector tube. The vertical plate is vertically arranged and is square in shape. A second spring is fixedly installed on the side of the vertical plate. A second pin is fixedly installed at one end of the second spring. One end of the second pin passes through the vertical plate and is horizontally arranged.

[0015] The present invention provides a copper-aluminum pipe connector for a refrigeration system, which has the following advantages: The present invention provides an opening and closing mechanism to increase the opening and closing function of the copper-aluminum pipe connector, thereby improving its practicality. The present invention also provides a fixing mechanism to limit the movement of the copper and aluminum pipes after they are threaded into the connector, thereby preventing them from rotating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the copper tube of this utility model;

[0018] Figure 3 This is a schematic diagram of the connector tube of this utility model;

[0019] Figure 4 This is a schematic diagram of the sphere of this utility model.

[0020] In the diagram: 1. Connector tube; 21. First pin; 22. Mounting ring; 23. First spring; 24. Insert block; 25. Sealing ring; 26. Insert sleeve; 27. Insert groove; 31. Vertical plate; 32. Second pin; 33. Second spring; 34. Through hole; 35. Ball; 36. Gear; 37. Shaft; 4. Copper tube; 5. Aluminum tube body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A copper-aluminum pipe joint for a refrigeration system includes a joint pipe 1, with a copper pipe 4 and an aluminum pipe body 5 threadedly connected to both ends of the joint pipe 1. The joint pipe 1 is equipped with an opening and closing mechanism to enhance the opening and closing function of the copper-aluminum pipe joint and improve its practicality. The ends of the copper pipe 4 and the aluminum pipe body 5 are equipped with fixing mechanisms to limit the movement of the copper pipe 4 and the aluminum pipe body 5 after they are threadedly connected to the joint pipe 1, preventing rotation. The fixing mechanism includes an mounting ring 22. There are two mounting rings 22, which are fixedly installed on the copper tube 4 and the aluminum tube body 5 respectively. The mounting rings 22 are used to support the installation of the first spring 23. The first spring 23 is fixedly installed on the side of the mounting ring 22. The first spring 23 is used to support the installation of the first pin 21. The first pin 21 is fixedly installed on one end of the first spring 23. One end of the first pin 21 passes through the side of the mounting ring 22. The first pin 21 is used to be inserted into the plug sleeve 26. The plug sleeve 26 is fixedly installed on the connector tube 1. The plug sleeve 26 is used to support the insertion of the first pin 21.

[0023] The opening and closing mechanism includes a shaft 37, which is rotatably connected to the top end of the connector tube 1. The shaft 37 is used to support the installation of the ball 35. The bottom end of the shaft 37 passes through the connector tube 1 and is fixedly installed with the ball 35. The ball 35 is used to block the connector tube 1. The ball 35 rotates on the inner wall of the connector tube 1. A through hole 34 is opened on the ball 35. The through hole 34 is used to open the connector tube 1. A gear 36 is fixedly installed at the top end of the shaft 37. The gear 36 is used to support the insertion of one end of the second pin 32.

[0024] In detail, the mounting ring 22 is set vertically and is circular in shape. The mounting ring 22 is set to support the installation of the first spring 23.

[0025] Furthermore, the first pin 21 has a T-shaped cross-section and is horizontally positioned. The first pin 21 is positioned to be inserted into the sleeve 26.

[0026] Furthermore, a plug-in block 24 is fixedly installed on the side of the mounting ring 22. The plug-in block 24 is circular in shape and is used to be inserted into the plug-in groove 27. A sealing ring 25 is provided at the end of the plug-in block 24. The sealing ring 25 is circular in shape. The sealing ring 25 is provided to improve the sealing between the copper pipe 4 and the connector pipe 1 and the sealing between the aluminum pipe body 5 and the connector pipe 1, respectively.

[0027] More specifically, the end of the connector tube 1 is provided with a plug groove 27. The plug groove 27 is circular in shape, and there are two plug grooves 27. The cross-sectional dimensions of the plug groove 27 are adapted to the cross-sectional dimensions of the plug block 24. The plug groove 27 is provided to receive the plug of the plug block 24.

[0028] In general, the shaft 37 is vertically arranged and is cylindrical in shape, while the gear 36 is horizontally arranged and is used to receive the insertion of one end of the second pin 32.

[0029] Finally, a vertical plate 31 is fixedly installed at the top of the connector tube 1. The vertical plate 31 is vertically set and is square in shape. The vertical plate 31 is set to support the installation of the second spring 33. The second spring 33 is fixedly installed on the side of the vertical plate 31. A second pin 32 is fixedly installed at one end of the second spring 33. One end of the second pin 32 passes through the vertical plate 31. The second pin 32 is set horizontally and is set to be inserted between the teeth of the gear 36.

[0030] Working method: During operation, first pull the first pin 21, and then thread the copper tube 4 and the aluminum tube body 5 to the two ends of the connector tube 1 respectively. After installation, the end of the first pin 21 is aligned with the plug sleeve 26. Then, release the first pin 21. Under the action of the first spring 23, the first pin 21 will be inserted into the inner wall of the plug sleeve 26, thereby achieving the purpose of limiting the copper tube 4 and the aluminum tube body 5, preventing them from rotating, and thus avoiding the occurrence of falling off. During the installation of the copper tube 4 and the aluminum tube body 5, the plug block 24 with the sealing ring 25 will be inserted and pressed into the inner wall of the plug groove 27, thereby achieving the purpose of increasing the sealing performance.

[0031] When it is necessary to open the connector tube 1, pull the second pin 32 to pull one end of the second pin 32 away from the teeth of the gear 36, and then rotate the gear 36. The gear 36 drives the ball 35 to rotate through the shaft 37 until the through hole 34 on the surface of the ball 35 is on the same straight line as the copper tube 4 and the aluminum tube body 5, thereby achieving the purpose of opening the connector tube 1. When it is necessary to close, continue to rotate the gear 36.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A copper-aluminum pipe joint for a refrigeration system comprising a joint pipe (1), characterized in that: The two ends of the connector tube (1) are respectively threaded with a copper tube (4) and an aluminum tube body (5). The connector tube (1) is provided with an opening and closing mechanism, and the ends of the copper tube (4) and the aluminum tube body (5) are provided with a fixing mechanism. The fixing mechanism includes two mounting rings (22), which are fixedly mounted on the copper tube (4) and the aluminum tube body (5) respectively. A first spring (23) is fixedly mounted on the side of the mounting ring (22), and a first pin (21) is fixedly mounted on one end of the first spring (23). One end of the first pin (21) passes through the side of the mounting ring (22). A sleeve (26) is fixedly mounted on the connector tube (1). The opening and closing mechanism includes a shaft (37), which is rotatably connected to the top end of the connector tube (1). The bottom end of the shaft (37) passes through the connector tube (1) and is fixedly installed with a ball (35). The ball (35) rotates on the inner wall of the connector tube (1). A through hole (34) is opened on the ball (35). A gear (36) is fixedly installed at the top end of the shaft (37).

2. The copper-aluminum tube joint for a refrigeration system according to claim 1, characterized in that: The mounting ring (22) is vertically arranged and is circular in shape.

3. The copper-aluminum tube joint for a refrigeration system according to claim 1, wherein: The first pin (21) has a T-shaped cross-section and is horizontally positioned.

4. A copper-aluminum pipe joint for a refrigeration system according to claim 1, characterized in that: A plug-in block (24) is fixedly installed on the side of the mounting ring (22). The plug-in block (24) is circular in shape, and a sealing ring (25) is provided at the end of the plug-in block (24). The sealing ring (25) is circular in shape.

5. A copper-aluminum pipe joint for a refrigeration system according to claim 4, characterized in that: The end of the connector tube (1) is provided with a plug groove (27), the plug groove (27) is circular in shape, there are two plug grooves (27), and the cross-sectional dimensions of the plug groove (27) are adapted to the cross-sectional dimensions of the plug block (24).

6. A copper-aluminum pipe joint for a refrigeration system according to claim 1, characterized in that: The shaft (37) is vertically arranged and is cylindrical in shape, while the gear (36) is horizontally arranged.

7. A copper-aluminum pipe joint for a refrigeration system according to claim 1, characterized in that: A vertical plate (31) is fixedly installed at the top of the connector tube (1). The vertical plate (31) is vertically set and is square in shape. A second spring (33) is fixedly installed on the side of the vertical plate (31). A second pin (32) is fixedly installed at one end of the second spring (33). One end of the second pin (32) passes through the vertical plate (31) and is horizontally set.

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