Single-welding-spot air conditioner branch pipe

Abstract

The utility model relates to the field of air conditioner pipelines, and aims at providing a single-welding-spot air conditioner branch pipe which comprises a main pipe, the main pipe comprises a first pipeline and a second pipeline, the first pipeline is communicated with the second pipeline, and a flow dividing connector which is perpendicular to and communicated with the first pipeline is arranged at the communication position of the first pipeline and the second pipeline. The first pipeline, the second pipeline and the flow dividing connector are integrally formed, and a branch pipe is welded to the flow dividing connector. The air conditioner branch pipe is provided with only one welding spot, refrigerant leakage of the air conditioner branch pipe can be reduced, and the air conditioner branch pipe can be in butt joint with external pipelines or pipe joints of different specifications.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning pipelines, in particular to a single-welding-point air-conditioning branch pipe. Background Art

[0002] Air conditioning branch pipes, also known as household air conditioning branch pipes, branch pipes, multi-split branch pipes, etc., are used to connect the main unit and multiple terminal devices in the air conditioning system. Their main function is to divert the air conditioning refrigerant.

[0003] At present, most of the air-conditioning branch pipes circulating on the market are of "Y-type" structure, and there are often multiple welding points at the branch points of the pipes. As a result, it is easy for the refrigerant to leak through the weak welding points of the branch pipes during the use of the air-conditioning branch pipes, causing economic losses.

[0004] During the installation of air-conditioning pipes, the air-conditioning branch pipe needs to connect multiple external pipes and pipe joints. The diameters of the external pipes, pipe joints and branch pipes are often different. Operators need to carry branch pipes or adapters of different specifications to adapt to different pipe diameters, which causes great inconvenience to the operators during installation. Utility Model Content

[0005] The utility model aims to provide a single-welding-point air-conditioning branch pipe, which has only one welding point, can reduce the refrigerant leakage of the air-conditioning branch pipe, and can be connected with external pipes or pipe joints of different specifications.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A single-weld-point air-conditioning branch pipe comprises a main pipe, the main pipe comprises a first pipe and a second pipe, the first pipe is connected to the second pipe, a diversion joint perpendicular to and connected to the first pipe is provided at the connection point between the first pipe and the second pipe, the first pipe, the second pipe and the diversion joint are integrally formed, and a branch pipe is welded to the diversion joint.

[0008] Compared with the prior art, the advantages of the utility model are:

[0009] 1. The utility model forms another air-conditioning branch pipe other than the "Y-type" air-conditioning branch pipe structure through the cooperation of the flow splitter joint and the first pipe and the second pipe integrally formed therewith, so as to meet the use of other specific occasions and enrich the shapes and types of air-conditioning branch pipes; in addition, the air-conditioning branch pipe of the utility model has the first pipe, the second pipe and the flow splitter joint integrally formed, and only one welding point exists at the connection between the branch pipe and the flow splitter joint, which overcomes the defect of multiple welding points at the connection of the traditional branch pipe and reduces the probability of refrigerant leakage in the air-conditioning branch pipe;

[0010] 2. The first pipeline has a plurality of different pipe diameters by forming the expanded portion A through the expansion process on the second pipeline. The operator can choose to cut the expanded portion A according to the actual situation to achieve the connection of the first pipeline with external pipes or pipe joints of different specifications;

[0011] 3. The second pipeline has multiple different pipe diameters by expanding the expanded portion B formed by the expansion process on the first pipeline. The operator can choose to cut the expanded portion B according to the actual situation to achieve the connection of the second pipeline with external pipes or pipe joints of different specifications;

[0012] 4. The branch pipe has a plurality of different pipe diameters by forming a shrinking portion through shrinking processing on the branch pipe. The operator can choose to cut at any section of the shrinking portion according to the actual situation to achieve the branch pipe connection with external pipes or pipe joints of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a simplified structural diagram of a single-weld-point air-conditioning branch pipe embodiment 1 of the utility model;

[0014] Figure 2 This is a simplified structural diagram of a single-weld-point air-conditioning branch pipe embodiment 2 of the utility model;

[0015] Figure 3 This is a simplified structural diagram of a single-weld-point air-conditioning branch pipe embodiment 3 of the utility model;

[0016] Figure 4 This is a front view of a single-weld-point air-conditioning branch pipe embodiment 4 of the utility model;

[0017] Figure 5 This is a structural schematic diagram of a single-weld-point air-conditioning branch pipe embodiment 4 of the utility model;

[0018] Figure 6 This is a structural schematic diagram of a single-weld-point air-conditioning branch pipe embodiment 4 of the utility model;

[0019] Figure 7 It is a structural schematic diagram of Example 9 of a single-weld-point air-conditioning branch pipe of the utility model.

[0020] Explanation of reference numerals: 1 main pipe, 11 first pipe, 12 second pipe, 2 diversion joint, 3 branch pipe, 4 expansion part A, 5 expansion part B, 6 reduction part. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0022] Example 1: A single-weld-point air conditioning branch pipe

[0023] like Figure 1As shown, it is a schematic diagram of an embodiment 1 of a single-welding-point air-conditioning branch pipe provided by the utility model, which includes a main pipe 1, and the main pipe 1 includes a first pipeline 11 and a second pipeline 12, the first pipeline 11 is connected to the second pipeline 12, and a diverter joint 2 perpendicular to and connected to the first pipeline 11 is provided at the connection point between the first pipeline 11 and the second pipeline 12, the first pipeline 11, the second pipeline 12 and the diverter joint 2 are integrally formed, and a branch pipe 3 is welded to the diverter joint 2.

[0024] The first pipeline 11 is vertically connected to the end of the second pipeline 12 .

[0025] The connection between the first pipeline 11 and the second pipeline 12 is a rounded transition connection.

[0026] The bottom end of the flow dividing joint 2 has a smooth transition with the connection between the first pipeline 11 and the second pipeline 12 .

[0027] The main pipe 1, the flow dividing joint 2 and the branch pipe 3 are all made of metal materials (such as copper, iron, etc.).

[0028] Example 2: A single-weld-point air conditioning branch pipe

[0029] like Figure 2 As shown, it is a schematic diagram of Example 2 of a single-weld-point air-conditioning branch pipe provided by the utility model. The basic structure of Example 2 is generally similar to that of Example 1. The difference from Example 1 lies in that the second pipeline 12 is provided with an enlarged portion A4 formed by expanding processing, and the diameter of the enlarged portion A4 is larger than other sections of the second pipeline 12 except the enlarged portion A4.

[0030] The horizontal cross section of the enlarged portion A4 is circular.

[0031] Example 3: A single-weld-point air conditioning branch pipe

[0032] like Figure 3 As shown, it is a schematic diagram of Example 3 of a single-weld-point air-conditioning branch pipe provided by the utility model. The basic structure of Example 3 is generally similar to that of Example 2. The difference from Example 2 lies in that the first pipeline 11 is provided with an enlarged portion B5 formed by expanding processing, and the diameter of the enlarged portion B5 is larger than other sections of the first pipeline 11 except the enlarged portion B5.

[0033] The horizontal cross section of the enlarged portion B5 is circular.

[0034] Example 4: A single-weld-point air conditioning branch pipe

[0035] like Figure 4-6As shown, it is a schematic diagram of a single-weld-point air-conditioning branch pipe of Example 4 provided by the utility model. The basic structure of Example 4 is substantially similar to that of Example 3. The difference from Example 3 is that the branch pipe 3 is provided with a shrinking portion 6 formed by shrinking processing, and the shrinking portion 6 is in a pagoda shape (or step shape). Figure 4-6 As shown, the necking portion 6 can be a one-step pagoda shape, or can be a two-step or more one-step pagoda shape. The number of steps of the necking portion 6 can be controlled according to actual needs to control the number of neckings, and then the corresponding number of steps can be designed.

[0036] Example 5: A single-weld-point air conditioning branch pipe

[0037] The basic structure of this embodiment 5 is generally similar to that of embodiment 1, and the difference from embodiment 1 is that the first pipeline 11 is provided with an enlarged portion B5 formed by expansion processing, and the diameter of the enlarged portion B5 is larger than other sections of the first pipeline 11 except the enlarged portion B5.

[0038] Example 6: A single-weld-point air conditioning branch pipe

[0039] The basic structure of the embodiment 6 is similar to that of the embodiment 1. The difference from the embodiment 1 is that the branch pipe 3 is provided with a constricted portion 6 formed by constriction processing, and the constricted portion 6 is in the shape of a pagoda.

[0040] Example 7: A single-weld-point air conditioning branch pipe

[0041] The basic structure of the present embodiment 7 is substantially similar to that of the embodiment 2, and the difference from the embodiment 2 is that the branch pipe 3 is provided with a necking portion 6 formed by necking processing, and the necking portion 6 is in a pagoda shape.

[0042] Example 8: A single-weld-point air conditioning branch pipe

[0043] The basic structure of the present embodiment 8 is substantially similar to that of the embodiment 5, and the difference from the embodiment 5 is that the branch pipe 3 is provided with a necking portion 6 formed by necking processing, and the necking portion 6 is in a pagoda shape.

[0044] Since embodiments 5 to 8 are improvements on corresponding embodiments, the present utility model does not provide drawings corresponding to embodiments 5 to 8.

[0045] Example 9: A single-weld-point air conditioning branch pipe

[0046] like Figure 7As shown, it is a schematic diagram of a single-weld-point air-conditioning branch pipe of Example 9 provided by the utility model. The basic structure of Example 9 is generally similar to that of Example 4. The difference from Example 4 is that the first pipeline 11 and the second pipeline 12 are connected in a straight line, that is, the first pipeline 11, the second pipeline 12 and the flow dividing joint 2 are connected in a T-shape. The branch pipe 3 is a bend pipe (90-degree bend pipe) and an expansion portion is provided at the end of the branch pipe 3.

[0047] Of course, when the first pipeline 11 and the second pipeline 12 are connected in a straight line, the first pipeline 11 and the second pipeline 12 may or may not be provided with an expanded portion, and the end of the branch pipe 3 may or may not be provided with a necking portion and / or an expanded portion, which will not be repeated here.

[0048] In addition, it should be emphasized that any single-weld-point air-conditioning branch pipe described in the utility model, its first pipeline 11, the second pipeline 12 and the branch pipe 3 can be designed or designed with expansion parts and contraction parts according to actual needs.

[0049] The general usage of the utility model is:

[0050] First, the operator measures the diameter of the pipe joint or external pipe to be connected to the single-weld-point air-conditioning branch pipe; secondly, the operator connects the external pipe directly to the single-weld-point air-conditioning branch pipe according to the measured pipe diameter, or uses a pipe cutter, pipe cutter and other tools to selectively and smoothly cut the expanded portion A4, expanded portion B5 and necked portion 6 of the single-weld-point air-conditioning branch pipe, and then connects them with the external pipe or pipe joint to achieve the effect of the single-weld-point air-conditioning branch pipe adapting to different pipe diameters.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A single-weld-point air conditioning branch pipe, characterized in that: The invention comprises a main pipe (1), the main pipe (1) comprising a first pipe (11) and a second pipe (12), the first pipe (11) and the second pipe (12) being connected to each other, a flow dividing joint (2) which is perpendicular to and connected to the first pipe (11) is provided at the connecting point between the first pipe (11) and the second pipe (12), the first pipe (11), the second pipe (12) and the flow dividing joint (2) being integrally formed, and a branch pipe (3) being welded to the flow dividing joint (2).

2. The single-weld-point air-conditioning branch pipe according to claim 1, characterized in that: The first pipeline (11) is vertically connected to the end of the second pipeline (12).

3. The single-weld-point air-conditioning branch pipe according to claim 2, characterized in that: The second pipeline (12) is provided with an expanded portion A (4) formed by expansion processing, and the diameter of the expanded portion A (4) is larger than other sections of the second pipeline (12) except the expanded portion A (4).

4. The single-weld-point air-conditioning branch pipe according to claim 2 or 3, characterized in that: The first pipeline (11) is provided with an expanded portion B (5) formed by expansion processing, and the diameter of the expanded portion B (5) is larger than other sections of the first pipeline (11) except the expanded portion B (5).

5. The single-weld-point air-conditioning branch pipe according to claim 4, characterized in that: The branch pipe (3) is provided with a necking portion (6) formed by necking processing, and the necking portion (6) is in a pagoda shape.

6. The single-weld-point air-conditioning branch pipe according to claim 2 or 3, characterized in that: The branch pipe (3) is provided with a necking portion (6) formed by necking processing, and the necking portion (6) is in a pagoda shape.

7. The single-weld-point air-conditioning branch pipe according to claim 2, characterized in that: The connection between the first pipeline (11) and the second pipeline (12) is a rounded transition connection.

8. The single-weld-point air-conditioning branch pipe according to claim 1, characterized in that: The bottom end of the flow splitter joint (2) has a smooth transition to the connection point between the first pipeline (11) and the second pipeline (12).

9. The single-weld-point air-conditioning branch pipe according to claim 1, characterized in that: The first pipeline (11) is connected to the second pipeline (12) in a straight line.

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