Double air conditioning pipe connecting structure

Abstract

The utility model provides a kind of double air conditioner pipe connecting structure, including high pressure pipe and low pressure pipe, high pressure pipe and low pressure pipe are side by side and set together, further including first connecting plate and second connecting plate, first connecting plate is connected with second connecting plate by connecting bolt, two cavities are opened between first connecting plate and second connecting plate, and two cavities are separated from each other, two pipe joints are welded and fixed in the right side of first connecting plate, two pipe joints are sealedly connected with high pressure pipe and low pressure pipe respectively, the left side of second connecting plate is connected with flexible air pipe and flexible liquid pipe respectively.The utility model only needs to slightly adjust the deformation of high pressure pipe and low pressure pipe, without bending high pressure pipe and low pressure pipe in a large range, ensure the sealing property and service life of high pressure pipe and low pressure pipe;Through the mode of combination assembly, it is convenient to install, and it is also convenient to replace and repair.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning pipe technology, and in particular to a double air conditioning pipe connection structure. Background Technology

[0002] The pipes in an air conditioning system (referred to as "air conditioning pipes") are key components for the flow of refrigerant, air, or condensate. Their type, material, and specifications directly affect the performance and lifespan of the air conditioner.

[0003] In existing technology, the dual-pipe structure used in air conditioning systems typically consists of a high-pressure pipe connecting the condenser of the outdoor unit to the evaporator inlet of the indoor unit, and a low-pressure pipe connecting the evaporator outlet of the indoor unit to the compressor inlet of the outdoor unit. Before connection, the two pipes are usually designed side by side in the middle and fitted with an insulation sleeve. Then, they are bent at both ends and connected to the outdoor and indoor units respectively. However, since the high-pressure and low-pressure pipes are mostly made of copper, they are difficult to bend, especially when the indoor and outdoor units are in different locations, requiring multiple bends. This increases the difficulty of installation and can easily reduce the airtightness and service life of the air conditioning pipes. Utility Model Content

[0004] The present invention aims to provide a dual air conditioning pipe connection structure to overcome or at least partially solve the above problems.

[0005] To achieve the above objectives, the technical solution of this utility model is specifically implemented as follows:

[0006] This utility model provides a dual-air conditioning pipe connection structure, including a high-pressure pipe and a low-pressure pipe, which are arranged side by side. It also includes a first connecting plate and a second connecting plate, which are connected by connecting bolts. Two cavities are formed between the first connecting plate and the second connecting plate and are separated from each other. Two pipe joints are welded and fixed to the right side of the first connecting plate, and the two pipe joints are respectively sealed to the high-pressure pipe and the low-pressure pipe. A flexible gas pipe and a flexible liquid pipe are respectively connected to the left side of the second connecting plate. The flexible gas pipe is connected to the low-pressure pipe through a cavity, and the flexible liquid pipe is connected to the high-pressure pipe through a cavity.

[0007] As a further embodiment of this utility model, the left side of the first connecting plate is provided with an annular inner groove, and a sealing ring is provided inside the annular inner groove. The right side of the second connecting plate is provided with an annular outer protrusion, and the annular outer protrusion is matched and disposed in the annular inner groove.

[0008] As a further embodiment of this utility model, both the annular outer protrusion and the annular inner groove are disposed around the outer periphery of the cavity.

[0009] As a further embodiment of this utility model, the second connecting plate is rotatably connected to the connecting bolt via a connecting bearing, and the left side of the first connecting plate is provided with a threaded hole, and the connecting bolt is connected to the threaded hole via thread engagement.

[0010] As a further embodiment of this invention, the connecting bolt is an internal hex bolt.

[0011] As a further embodiment of this utility model, the high-pressure pipe, low-pressure pipe, flexible liquid pipe and flexible gas pipe are all fitted with connecting nuts, and the outer periphery of the pipe joint is provided with external threads, and the connecting nuts are connected to the pipe joint through thread engagement.

[0012] As a further embodiment of this utility model, an annular protrusion is fitted and fixed on the high-pressure pipe, low-pressure pipe, flexible liquid pipe and flexible gas pipe, and the right side of the annular protrusion matches the inner right wall of the connecting nut.

[0013] This utility model provides a dual air conditioning pipe connection structure, which has the following advantages:

[0014] Only slight adjustments to the deformation of the high-pressure and low-pressure pipes are needed, without the need for extensive bending of the high-pressure and low-pressure pipes, thus ensuring the sealing performance and service life of the high-pressure and low-pressure pipes.

[0015] The modular assembly method makes installation convenient, as well as replacement and maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the connection structure between the first connecting plate and the second connecting plate in this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the first connecting plate in this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the second connecting plate in this utility model.

[0021] Figure 5 This is a cross-sectional view of the connecting nut in this utility model.

[0022] Figure 6 This is a side view of the connecting bolt in this utility model.

[0023] Figure 7 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0024] In the diagram: 1. High-pressure pipe; 2. Low-pressure pipe; 3. Pipe fitting; 4. First connecting plate; 5. Second connecting plate; 6. Flexible gas pipe; 7. Connecting bolt; 8. Flexible liquid pipe; 9. Connecting nut; 31. External thread; 41. Sealing ring; 42. Threaded hole; 51. Annular external protrusion. Detailed Implementation

[0025] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0026] See Figures 1-7 This utility model provides a dual-air conditioning pipe connection structure, including a high-pressure pipe 1 and a low-pressure pipe 2, which are arranged side by side. It also includes a first connecting plate 4 and a second connecting plate 5, which are connected by connecting bolts 7. Two cavities are opened between the first connecting plate 4 and the second connecting plate 5 and are separated from each other. Two pipe joints 3 are welded and fixed on the right side of the first connecting plate 4, and the two pipe joints 3 are respectively sealed to the high-pressure pipe 1 and the low-pressure pipe 2. A flexible gas pipe 6 and a flexible liquid pipe 8 are respectively connected to the left side of the second connecting plate 5. The flexible gas pipe 6 is connected to the low-pressure pipe 2 through a cavity, and the flexible liquid pipe 8 is connected to the high-pressure pipe 1 through a cavity.

[0027] In use, the high-pressure pipe 1 and the low-pressure pipe 2 are arranged side by side and both connected inside the insulation sleeve. The left and right ends of the high-pressure pipe 1 and the low-pressure pipe 2 are then aligned with the pipe connector 3 and connected using the connecting nut 9, thus sealing the pipe connector 3 to the high-pressure pipe 1 and the low-pressure pipe 2 together. The flexible liquid pipe 8 and the flexible gas pipe 6 are then connected to the condenser, evaporator, and compressor of the indoor and outdoor units, respectively. The first connecting plate 4 and the second connecting plate 5 are aligned by aligning the outer annular protrusion 51 with the inner annular protrusion. Finally, the first connecting plate 4 is secured using the connecting bolt 7. Plate 4 is clamped to the second connecting plate 5, and the sealing ring 41 is squeezed and sealed by the annular outer protrusion 51. The flexibility of the flexible liquid pipe 8 and the flexible gas pipe 6 allows for stable connection with the condenser, evaporator and compressor, ensuring that the distance and position are different. When the first connecting plate 4 and the second connecting plate 5 are connected, only slight adjustment of the deformation of the high-pressure pipe 1 and the low-pressure pipe 2 is required. There is no need to bend the high-pressure pipe 1 and the low-pressure pipe 2 extensively, which ensures the sealing performance and service life of the high-pressure pipe 1 and the low-pressure pipe 2. At the same time, the combination assembly method facilitates disassembly and assembly, and makes it easy to replace and maintain.

[0028] The first connecting plate 4 has an annular inner groove on its left side, and a sealing ring 41 is provided inside the annular inner groove. The second connecting plate 5 has an annular outer protrusion 51 on its right side, and the annular outer protrusion 51 is matched and disposed in the annular inner groove. Both the annular outer protrusion 51 and the annular inner groove are disposed around the outer periphery of the cavity. The first connecting plate 4 and the second connecting plate 5 can be aligned through the annular inner groove and the annular outer protrusion 51, while the sealing ring 41 ensures the sealing of the cavity after the first connecting plate 4 and the second connecting plate 5 are connected, thus preventing leakage.

[0029] The second connecting plate 5 is rotatably connected to the connecting bolt 7 via a connecting bearing. The left side of the first connecting plate 4 has a threaded hole 42, and the connecting bolt 7 is connected to the threaded hole 42 by thread engagement. The connecting bolt 7 is an internal hex bolt. The internal design of the connecting bolt 7 ensures aesthetics and simplicity, and the connecting bolt 7 can be operated with an internal hex wrench, making operation convenient.

[0030] Connecting nuts 9 are fitted onto high-pressure pipe 1, low-pressure pipe 2, flexible liquid pipe 8, and flexible gas pipe 6. External threads 31 are provided on the outer periphery of pipe joint 3. Connecting nuts 9 are connected to pipe joint 3 through thread engagement. Annular protrusions are fitted and fixed onto high-pressure pipe 1, low-pressure pipe 2, flexible liquid pipe 8, and flexible gas pipe 6. The right side of the annular protrusion matches the inner right wall of the connecting nut 9, facilitating the connection of high-pressure pipe 1 and low-pressure pipe 2 to pipe joint 3, and also facilitating the connection of flexible liquid pipe 8 and flexible gas pipe 6 to evaporator, condenser, and compressor respectively, while ensuring sealing.

[0031] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A dual-pipe connection structure, comprising a high-pressure pipe (1) and a low-pressure pipe (2), wherein the high-pressure pipe (1) and the low-pressure pipe (2) are arranged side by side, characterized in that, It also includes a first connecting plate (4) and a second connecting plate (5). The first connecting plate (4) and the second connecting plate (5) are connected by connecting bolts (7). Two cavities are opened between the first connecting plate (4) and the second connecting plate (5) and the two cavities are separated from each other. Two pipe joints (3) are welded and fixed on the right side of the first connecting plate (4). The two pipe joints (3) are respectively sealed to the high-pressure pipe (1) and the low-pressure pipe (2). Flexible air pipe (6) and flexible liquid pipe (8) are respectively connected on the left side of the second connecting plate (5). The flexible air pipe (6) is connected to the low-pressure pipe (2) through a cavity. The flexible liquid pipe (8) is connected to the high-pressure pipe (1) through a cavity.

2. The dual air conditioning pipe connection structure according to claim 1, characterized in that, The first connecting plate (4) has an annular inner groove on its left side, and a sealing ring (41) is provided inside the annular inner groove. The second connecting plate (5) has an annular outer protrusion (51) on its right side, and the annular outer protrusion (51) is matched and arranged inside the annular inner groove.

3. The dual air conditioning pipe connection structure according to claim 2, characterized in that, The annular outer protrusion (51) and the annular inner groove are both located around the outer periphery of the cavity.

4. The dual air conditioning pipe connection structure according to claim 2, characterized in that, The second connecting plate (5) is rotatably connected to the connecting bolt (7) via a connecting bearing. The first connecting plate (4) has a threaded hole (42) on its left side, and the connecting bolt (7) is connected to the threaded hole (42) by thread engagement.

5. The dual air conditioning pipe connection structure according to claim 4, characterized in that, The connecting bolt (7) is an internal hex bolt.

6. The dual air conditioning pipe connection structure according to claim 1, characterized in that, The high-pressure pipe (1), low-pressure pipe (2), flexible liquid pipe (8) and flexible gas pipe (6) are all fitted with connecting nuts (9). The outer periphery of the pipe joint (3) is provided with external threads (31). The connecting nuts (9) are connected to the pipe joint (3) by thread engagement.

7. A dual air conditioning pipe connection structure according to claim 6, characterized in that, The high-pressure pipe (1), low-pressure pipe (2), flexible liquid pipe (8) and flexible gas pipe (6) are all fitted with annular protrusions, and the right side of the annular protrusion matches the inner right wall of the connecting nut (9).

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