Ultrathin-wall copper pipe for air conditioner

Abstract

The utility model relates to the technical field of ultrathin-wall copper pipes, and discloses an ultrathin-wall copper pipe for an air conditioner, which comprises a connecting pipe, an inserting pipe is fixedly sleeved on the inner side of the connecting pipe, a locking component is arranged on the connecting pipe, contact pipes are respectively sleeved on the outer sides of two ends of the inserting pipe, and one ends of the two contact pipes close to the connecting pipe are fixedly connected with the connecting pipe. An inserting groove is formed between the abutting pipe and the inserting pipe in a sleeving mode, a sealing assembly is arranged on the inserting pipe, an ultra-thin-wall copper pipe is inserted into the inner side of the inserting groove and connected with the connecting pipe through the inserting groove, the ultra-thin-wall copper pipe is accurately inserted along the inserting pipe till the ultra-thin-wall copper pipe reaches the preset depth, and when the ultra-thin-wall copper pipe reaches the preset depth, the sealing assembly is arranged on the sealing assembly. When the ultra-thin-wall copper pipe is pressed, the extrusion block starts to be screwed, along with screwing of the extrusion block, the inclined face on the inner side of the extrusion block makes close contact with the abutting pipe, extrusion force is generated, the sealing effect between the sealing ring and the ultra-thin-wall copper pipe is enhanced through the extrusion force, and the ultra-thin-wall copper pipe is promoted to deform and be connected with the protruding ring in a matched and clamped mode.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-thin wall copper tubes, and specifically, to an ultra-thin wall copper tube for air conditioners. Background Art

[0002] With the continuous development of air conditioner technology and the improvement of market demand, higher requirements are put forward for aspects such as the energy efficiency ratio, refrigeration efficiency, and environmental protection performance of air conditioning systems. As an efficient, energy-saving, and environmentally friendly refrigeration pipeline material, ultra-thin wall copper tubes are gradually being used in the air conditioning industry. Ultra-thin wall copper tubes have excellent thermal conductivity and can quickly transfer the heat in the refrigerant to achieve efficient heat exchange. This characteristic enables ultra-thin wall copper tubes to quickly discharge heat in the air conditioning refrigeration system, improving the refrigeration efficiency. During the use of ultra-thin wall copper tubes, damage may occur. The damaged ultra-thin wall copper tubes will affect the flow of the refrigerant and the heat exchange efficiency, resulting in a decrease in the refrigeration capacity of the air conditioning system and being unable to meet the demand for indoor temperature adjustment. Therefore, repair is required.

[0003] There are some drawbacks in the existing devices during use. For example, after the existing ultra-thin wall copper tubes are damaged, they are usually repaired by welding. The welding repair method first flares one end of the pipe orifice of one ultra-thin wall copper tube, and then inserts the pipe orifice of the other ultra-thin wall copper tube into this flared part, and finally welds at the flared part. This connection method of flaring first and then welding, although it can achieve effective connection between ultra-thin wall copper tubes, the repair steps are relatively cumbersome. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an ultra-thin wall copper tube for air conditioners to solve the problem that the ultra-thin wall copper tube needs to be repaired by welding after being damaged.

[0005] The utility model provides the following technical solution: an ultra-thin wall copper tube for air conditioners, including a connecting pipe, an inserting pipe is fixedly sleeved inside the connecting pipe, a locking component is arranged on the connecting pipe, a resisting pipe is sleeved on the outer sides of both ends of the inserting pipe respectively, one ends of the two resisting pipes close to the connecting pipe are fixedly connected to the connecting pipe, an inserting groove is formed by sleeving between the resisting pipe and the inserting pipe, a sealing component is arranged on the inserting pipe, an ultra-thin wall copper tube is inserted into the inner side of the inserting groove, and the ultra-thin wall copper tube is connected to the connecting pipe through the inserting groove.

[0006] In the above solution, through the inserting pipe fixedly sleeved inside the connecting pipe and the resisting pipes sleeved on the outer sides of both ends of the inserting pipe respectively, a stable inserting groove structure is formed. This design not only provides an accurate inserting path for the ultra-thin wall copper tube, but also enhances the stability of the entire connection structure through the fixed connection between the resisting pipe and the connecting pipe, ensuring that the ultra-thin wall copper tube is not easily loosened or detached after being inserted.

[0007] Preferably, a plurality of relief grooves are formed in both of the abutting pipes, and the plurality of relief grooves are evenly distributed.

[0008] In the above solution, the relief grooves help to disperse the stress concentration points of the abutting pipes when being squeezed by the squeezing blocks, which can reduce the risk of fatigue failure or crack propagation of the abutting pipes caused by excessive local stress, and improve the durability and safety of the abutting pipes.

[0009] Preferably, the sealing assembly includes sealing grooves annularly formed on the outer sides of both ends of the insertion pipe, sealing rings are arranged on the inner sides of the two sealing grooves, two convex rings are respectively arranged on both sides of the two sealing rings, and the inner sides of the plurality of convex rings are fixedly sleeved on the outer side of the insertion pipe.

[0010] In the above solution, the sealing ring in the sealing groove serves as the first sealing barrier, and tightly fits between the insertion pipe and the ultra-thin wall copper pipe through its elastic deformation, effectively preventing the direct leakage of fluid or gas. The convex ring contacts the ultra-thin wall copper pipe. When the ultra-thin wall copper pipe is squeezed by the squeezing block, the ultra-thin wall copper pipe deforms to match and be clamped with the convex ring to form a restriction, forming a second sealing barrier, which further enhances the sealing effect by means of physical clamping.

[0011] Preferably, the locking assembly includes squeezing blocks respectively threadedly sleeved on both ends of the connecting pipe. The inner sides of the two squeezing blocks are both slidably connected to the outer side of the ultra-thin wall copper pipe, and inclined surfaces are formed on the inner sides of the two squeezing blocks.

[0012] In the above solution, the squeezing blocks are threadedly sleeved on both ends of the connecting pipe, forming a mechanical locking mechanism. When the squeezing blocks are tightened, the squeezing blocks will move axially along the connecting pipe, and then push the inclined surfaces on their inner sides to closely contact the abutting pipes and generate a squeezing force. This squeezing force helps to enhance the sealing effect between the sealing ring and the ultra-thin wall copper pipe. In addition, when the ultra-thin wall copper pipe is squeezed by the squeezing block, the ultra-thin wall copper pipe deforms to match and be clamped with the convex ring, and the ultra-thin wall copper pipe is locked on the connecting pipe by means of clamping to prevent it from loosening or falling off.

[0013] Preferably, support blocks are respectively fixedly sleeved on the outer sides of both ends of the connecting pipe. The two support blocks are symmetrically arranged. Moving blocks are respectively arranged on the opposite outer sides of the two support blocks. The inner sides of the two moving blocks are both slidably sleeved on the outer side of the connecting pipe. Springs are arranged between the same group of support blocks and moving blocks. A plurality of clamping blocks are respectively fixedly connected to the sides of the two moving blocks away from the support blocks. A plurality of card slots adapted to the sizes of the clamping blocks are respectively formed at the ends of the two squeezing blocks close to the connecting pipe. The plurality of clamping blocks and the card slots are used in cooperation. Limiting blocks are respectively arranged on the sides of the two moving blocks away from the support blocks. The inner sides of the two limiting blocks are fixedly sleeved on the outer side of the connecting pipe.

[0014] In the above scheme, the card block on the moving block is manually moved toward the supporting block, and the control of the card block is released when the extrusion block is tightened. The card block enters the slot under the pressure of the spring, and the spring applies a continuous pressure to the card block after it enters the slot. The coordinated use of the card block and the slot prevents the extrusion block from loosening due to external factors (such as vibration, impact, etc.), and the limit block ensures that the moving block will not detach from the connecting pipe during the sliding process.

[0015] As a preferred embodiment of the above technical solution, four sliding grooves are transversely opened on the outer sides of both ends of the connecting pipe, and four sliding blocks are fixedly connected to the positions corresponding to the four sliding grooves on the inner sides of the two moving blocks, and the two moving blocks are slidably connected to the connecting pipe through the sliding blocks.

[0016] In the above solution, the cooperation between the sliding groove and the sliding block provides a clear sliding track for the moving block, and also prevents the moving block from deflecting or shaking due to external factors (such as vibration, impact, etc.) during use.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In the utility model, during the tightening process, the extrusion block is in close contact with the outer side of the ultra-thin-wall copper tube through the inner inclined surface and generates an extrusion force. This directional extrusion not only enhances the sealing effect between the sealing ring and the ultra-thin-wall copper tube, but also reduces the risk of refrigerant leakage caused by poor sealing, thereby improving the operating efficiency and safety of the entire refrigeration system. The ultra-thin-wall copper tube is deformed after being squeezed by the extrusion block, and forms a matching snap-fit ​​with the convex ring on the connecting tube. This physical snap-fit ​​method greatly enhances the stability of the connection. Even in the face of external factors such as vibration and impact, the ultra-thin-wall copper tube can maintain a close connection with the connecting tube, effectively preventing loosening or falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an ultra-thin-wall copper tube for air conditioning;

[0020] Figure 2 It is a schematic diagram of the partial structure of an ultra-thin-wall copper tube for air conditioning;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of an extruded block in an ultra-thin-wall copper tube for air conditioning;

[0022] Figure 4 This is a schematic diagram of the structure of a friction tube in an ultra-thin-wall copper tube for air conditioning;

[0023] Figure 5 This is a schematic diagram of the sealing component structure of an ultra-thin-wall copper tube for air conditioning;

[0024] Figure 6 This is a schematic diagram of the exploded structure of an ultra-thin-wall copper tube for air conditioning.

[0025] In the figure: 10, connecting tube; 11, plug-in tube; 12, resistance tube; 13, plug-in slot; 14, ultra-thin wall copper tube; 20, give way slot; 30, sealing slot; 31, sealing ring; 32, convex ring; 40, extrusion block; 41, inclined surface; 50, support block; 51, moving block; 52, spring; 53, clamping block; 54, clamping slot; 55, limit block; 60, sliding slot; 61, sliding block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] Example 1

[0028] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: an ultra-thin-wall copper tube for air conditioning, comprising a connecting tube 10, a plug-in tube 11 is fixedly sleeved on the inner side of the connecting tube 10, a locking assembly is provided on the connecting tube 10, and a contact tube 12 is sleeved on the outer sides of both ends of the plug-in tube 11, and one end of the two contact tubes 12 close to the connecting tube 10 is fixedly connected to the connecting tube 10, a plug-in groove 13 is sleeved between the contact tube 12 and the plug-in tube 11, a sealing assembly is provided on the plug-in tube 11, and an ultra-thin-wall copper tube 14 is inserted in the inner side of the plug-in groove 13 The ultra-thin-wall copper tube 14 is connected to the connecting tube 10 through the plug-in groove 13. During specific use, a stable plug-in groove 13 structure is formed by the plug-in tube 11 fixedly sleeved on the inner side of the connecting tube 10 and the resistance tubes 12 respectively sleeved on the outer sides of the two ends of the plug-in tube 11. This design not only provides a precise plug-in path for the ultra-thin-wall copper tube 14, but also enhances the stability of the entire connection structure through the fixed connection between the resistance tube 12 and the connecting tube 10, ensuring that the ultra-thin-wall copper tube 14 is not easy to loosen or fall off after insertion.

[0029] As an implementation method in this embodiment, Figure 4 As shown, a plurality of relief grooves 20 are provided on the two resistance tubes 12, and the plurality of relief grooves 20 are evenly distributed. During specific use, the relief grooves 20 help to disperse the stress concentration points of the resistance tubes 12 when they are squeezed by the squeezing blocks 40, thereby reducing the risk of fatigue damage or crack propagation of the resistance tubes 12 due to excessive local stress, and improving the durability and safety of the resistance tubes 12.

[0030] As an implementation method in this embodiment, Figure 5As shown, the sealing assembly includes sealing grooves 30 respectively provided in an annular manner on the outer sides of both ends of the plug-in tube 11, sealing rings 31 are provided on the inner sides of the two sealing grooves 30, and two convex rings 32 are respectively provided on both sides of the two sealing rings 31. The inner sides of the plurality of convex rings 32 are fixedly sleeved on the outer side of the plug-in tube 11. During specific use, the sealing ring 31 in the sealing groove 30 serves as the first sealing barrier, and is tightly fitted between the plug-in tube 11 and the ultra-thin-wall copper tube 14 through its elastic deformation, effectively preventing direct leakage of fluid or gas, and the convex ring 32 is in contact with the ultra-thin-wall copper tube 14. The ultra-thin-wall copper tube 14 is squeezed by the extrusion block 40, causing the ultra-thin-wall copper tube 14 to deform and match the convex ring 32 to form a restriction to form a second sealing barrier, and the sealing effect is further enhanced by physical clamping.

[0031] As an implementation method in this embodiment, Figure 1 and Figure 3 As shown, the locking assembly includes extrusion blocks 40 respectively threadedly sleeved on the two ends of the connecting tube 10, the inner sides of the two extrusion blocks 40 are slidably connected to the outer sides of the ultra-thin-wall copper tube 14, and the inner sides of the two extrusion blocks 40 are provided with inclined surfaces 41. During specific use, the extrusion blocks 40 are threadedly sleeved on the two ends of the connecting tube 10 to form a mechanical locking mechanism. When the extrusion blocks 40 are tightened, the extrusion blocks 40 will move axially along the connecting tube 10, thereby pushing the inclined surface 41 on the inner side to closely contact the abutting tube 12 and generate an extrusion force. This extrusion force helps to enhance the sealing effect between the sealing ring 31 and the ultra-thin-wall copper tube 14. In addition, the ultra-thin-wall copper tube 14 is squeezed by the extrusion blocks 40, so that the ultra-thin-wall copper tube 14 is deformed and matched with the convex ring 32 for clamping. The ultra-thin-wall copper tube 14 is locked on the connecting tube 10 by clamping to prevent it from loosening or falling off.

[0032] As an implementation method in this embodiment, Figure 2 , Figure 5 and Figure 6As shown, the outer sides of both ends of the connecting pipe 10 are respectively fixedly sleeved with support blocks 50, the two support blocks 50 are symmetrically arranged, and the opposite outer sides of the two support blocks 50 are respectively provided with moving blocks 51, and the inner sides of the two moving blocks 51 are both slidably sleeved on the outer sides of the connecting pipe 10, and a spring 52 is arranged between the same group of support blocks 50 and the moving blocks 51, and the two moving blocks 51 are respectively fixedly connected with a plurality of clamping blocks 53 on the side away from the support blocks 50, and the two extrusion blocks 40 are respectively provided with a plurality of clamping grooves 54 adapted to the size of the clamping blocks 53 on the ends close to the connecting pipe 10, and the plurality of clamping blocks 53 are used in conjunction with the clamping grooves 54, and the two moving blocks 51 are away from the support blocks 5 0 is respectively provided with a limit block 55 on one side, and the inner sides of the two limit blocks 55 are fixedly sleeved on the outer side of the connecting pipe 10. During specific use, the block 53 on the moving block 51 is manually moved toward the supporting block 50. When the extruding block 40 is tightened, the control of the block 53 is released, and the block 53 enters the slot 54 under the pressure of the spring 52. The spring 52 applies a continuous pressure to the block 53 after entering the slot 54. The coordinated use of the block 53 and the slot 54 prevents the extruding block 40 from loosening due to external factors such as vibration, impact, etc. The limit block 55 ensures that the moving block 51 will not separate from the connecting pipe 10 during the sliding process.

[0033] As an implementation method in this embodiment, Figure 6 As shown, four sliding grooves 60 are transversely opened on the outer sides of both ends of the connecting tube 10, and four sliding blocks 61 are fixedly connected to the positions of the four sliding grooves 60 on the inner sides of the two moving blocks 51, respectively. The two moving blocks 51 are slidably connected to the connecting tube 10 through the sliding blocks 61. During specific use, the cooperation between the sliding grooves 60 and the sliding blocks 61 provides a clear sliding trajectory for the moving blocks 51, and also prevents the moving blocks 51 from being offset or shaking due to external factors such as vibration, impact, etc. during use.

[0034] Working principle: The ultra-thin-wall copper tube 14 is accurately inserted along the plug tube 11 until it reaches a predetermined depth. When the ultra-thin-wall copper tube 14 reaches the predetermined depth, the extrusion block 40 is tightened. As the extrusion block 40 is tightened, the inclined surface 41 on the inner side thereof is in close contact with the abutment tube 12 and generates an extrusion force. This extrusion force not only enhances the sealing effect between the sealing ring 31 and the ultra-thin-wall copper tube 14, but also causes the ultra-thin-wall copper tube 14 to deform and match the convex ring 32 to lock the ultra-thin-wall copper tube 14 on the connecting tube 10 by means of a clamping connection, thereby preventing it from If the block 53 on the movable block 51 becomes loose or falls off, the clamping block 53 on the movable block 51 is manually moved toward the supporting block 50. When the extruding block 40 is tightened, the control of the clamping block 53 is released, and the clamping block 53 enters the clamping groove 54 under the pressure of the spring 52. The spring 52 applies a continuous pressure to the clamping block 53 after it enters the clamping groove 54. The coordinated use of the clamping block 53 and the clamping groove 54 prevents the extruding block 40 from loosening due to external factors such as vibration and impact. The limit block 55 ensures that the movable block 51 will not be separated from the connecting pipe 10 during the sliding process, thereby further enhancing the stability of the connection.

[0035] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. An ultra-thin-wall copper tube for air conditioning, comprising a connecting tube (10), characterized in that: A plug-in tube (11) is fixedly sleeved on the inner side of the connecting tube (10), a locking assembly is provided on the connecting tube (10), and a resisting tube (12) is sleeved on the outer sides of both ends of the plug-in tube (11), and one end of the two resisting tubes (12) close to the connecting tube (10) is fixedly connected to the connecting tube (10), a plug-in groove (13) is sleeved between the resisting tube (12) and the plug-in tube (11), a sealing assembly is provided on the plug-in tube (11), an ultra-thin-wall copper tube (14) is inserted into the inner side of the plug-in groove (13), and the ultra-thin-wall copper tube (14) is connected to the connecting tube (10) through the plug-in groove (13).

2. The ultra-thin-wall copper tube for air conditioning according to claim 1, characterized in that: A plurality of clearance grooves (20) are provided on the two abutment tubes (12), and the plurality of clearance grooves (20) are evenly distributed.

3. The ultra-thin-wall copper tube for air conditioning according to claim 1, characterized in that: The sealing assembly comprises sealing grooves (30) respectively provided in an annular manner on the outer sides of both ends of the plug-in tube (11), sealing rings (31) are provided on the inner sides of the two sealing grooves (30), two convex rings (32) are respectively provided on the two sides of the two sealing rings (31), and the inner sides of the plurality of convex rings (32) are fixedly sleeved on the outer side of the plug-in tube (11).

4. The ultra-thin-wall copper tube for air conditioning according to claim 1, characterized in that: The locking assembly comprises extrusion blocks (40) respectively threadedly sleeved on both ends of the connecting pipe (10), the inner sides of the two extrusion blocks (40) being slidably connected to the outer sides of the ultra-thin-wall copper pipe (14), and the inner sides of the two extrusion blocks (40) being provided with inclined surfaces (41).

5. The ultra-thin-wall copper tube for air conditioning according to claim 4, characterized in that: Support blocks (50) are fixedly sleeved on the outer sides of both ends of the connecting tube (10), and the two support blocks (50) are symmetrically arranged. Moving blocks (51) are respectively arranged on the opposite outer sides of the two support blocks (50). The inner sides of the two moving blocks (51) are both slidably sleeved on the outer sides of the connecting tube (10). A spring (52) is arranged between the same group of support blocks (50) and moving blocks (51). A plurality of clamping blocks (53) are fixedly connected to the sides of the two moving blocks (51) away from the support blocks (50). A plurality of clamping grooves (54) adapted to the size of the clamping blocks (53) are respectively provided at the ends of the two extrusion blocks (40) close to the connecting tube (10). The plurality of clamping blocks (53) are used in conjunction with the clamping grooves (54). A limiting block (55) is respectively arranged on the sides of the two moving blocks (51) away from the support blocks (50), and the inner sides of the two limiting blocks (55) are fixedly sleeved on the outer sides of the connecting tube (10).

6. The ultra-thin-wall copper tube for air conditioning according to claim 5, characterized in that: Four sliding grooves (60) are respectively transversely opened on the outer sides of both ends of the connecting pipe (10), and four sliding blocks (61) are respectively fixedly connected to the positions corresponding to the four sliding grooves (60) on the inner sides of the two moving blocks (51), and the two moving blocks (51) are slidably connected to the connecting pipe (10) via the sliding blocks (61).

Images