Pipeline fixing device

Abstract

The utility model discloses a pipeline fixing device which comprises a first connecting piece and a second connecting piece matched with the first connecting piece. The first connecting piece and the second connecting piece are matched to form two volume cavities; a pipeline and a valve body are respectively arranged on the inner sides of the two volume cavities, and are clamped and limited through a first connecting piece and a second connecting piece; at least one layer of heat preservation cotton is arranged between the first connecting piece and the second connecting piece; according to the device, the needle valve and the main pipeline of the refrigerating system are connected through two connecting pieces and protected through heat preservation cotton. In this way, when the needle valve is used for filling nitrogen to conduct pressure maintaining and refrigerant filling on the refrigerating system, the needle valve is firmly fixed, the relative position of the needle valve and the pipeline is clamped and limited, and refrigerant leakage of the refrigerating system caused by deformation and cracking of the welding position of the needle valve and the main pipeline due to misoperation is reduced.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration system pipelines, in particular to a pipeline fixing device. Background Art

[0002] In the refrigeration system, the connection between the pipeline and the needle valve is very important because it directly affects the sealing and safety of the system. The needle valve and the main pipeline on the existing refrigeration system pipeline are connected by welding, which is a way to fuse the pipe or valve materials together by heating. In the refrigeration system, argon shielded welding (TIG welding) or soft soldering (copper pipe) is usually used. This connection method can provide very strong sealing and durability.

[0003] However, during use, the welding place between the needle valve and the main pipe will increase the brittleness of the metal at the welding point due to the low temperature. During the tightening process, improper operation will easily cause the welding place between the needle valve and the main pipe to deform and crack, resulting in refrigerant leakage in the refrigeration system. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a pipeline fixing device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a pipeline fixing device, comprising:

[0006] A first connecting member, and a second connecting member matching the first connecting member;

[0007] The first connecting member and the second connecting member cooperate to form two volume cavities;

[0008] Pipelines and valve bodies are placed inside the two volume chambers respectively, and are clamped and limited by the first connecting piece and the second connecting piece;

[0009] At least one layer of thermal insulation cotton is arranged between the first connecting member and the second connecting member.

[0010] As a further description of the above technical solution: the first connecting member includes a first clamping portion, the other side of the first clamping portion is connected to the second clamping portion, and an angle is formed between the first clamping portion and the second clamping portion.

[0011] As a further description of the above technical solution: one side of the second clamping portion is connected to the first assembly portion, and the upper part of the first assembly portion is connected to the third clamping portion.

[0012] As a further description of the above technical solution: the middle of the third clamping portion is bent toward a side away from the valve body to cooperate with the valve body.

[0013] As a further description of the above technical solution: one side of the first assembly portion extends toward the second connecting member and is supported below the second connecting member.

[0014] As a further description of the above technical solution: the second connecting member includes a second assembly portion, the second assembly portion cooperates with the first assembly portion, and one side of the second assembly portion extends toward the direction of the first connecting member to limit the first connecting member.

[0015] As a further description of the above technical solution: one side of the second assembly part is connected to the fourth clamping part, and the fourth clamping part is bent into several sections, which cooperate with the first clamping part and the second clamping part to clamp and limit the pipeline.

[0016] As a further description of the above technical solution: one end of the fourth clamping portion is connected to the third assembly portion, and one side of the third assembly portion extends toward the first connecting member to limit the first connecting member.

[0017] As a further description of the above technical solution: after the first connecting member and the second connecting member are matched, the second clamping portion is located below the valve body to support the valve body.

[0018] As a further description of the above technical solution: the first clamping portion and the third assembly portion, and the first assembly portion and the second assembly portion are detachably connected.

[0019] The above technical solution has the following advantages or beneficial effects:

[0020] 1. Use two connectors to connect the needle valve and the main pipeline of the refrigeration system, and protect them with insulation cotton. In this way, when using the needle valve to charge nitrogen to maintain the pressure of the refrigeration system and charge refrigerant, the needle valve is firmly fixed, and the relative position of the needle valve and the pipeline is clamped and limited, which reduces the deformation and cracking of the welding point between the needle valve and the main pipeline due to improper operation, which may cause refrigerant leakage in the refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional fixing device proposed by the utility model Figure 1 ;

[0022] Figure 2 The three-dimensional fixing device proposed by the utility model Figure 2 ;

[0023] Figure 3 A front view of the fixing device proposed by the utility model;

[0024] Figure 4 This is a rear view of the fixing device proposed by the utility model.

[0025] Legend:

[0026] 1. First connecting piece; 11. First clamping part; 12. Second clamping part; 13. First assembly part; 14. Third clamping part; 2. Second connecting piece; 21. Second assembly part; 22. Fourth clamping part; 23. Third assembly part; 3. Pipeline; 4. Valve body. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-Figure 4 The utility model provides an embodiment: a pipeline fixing device, comprising: a first connecting piece 1, and a second connecting piece 2 matched with the first connecting piece 1; the first connecting piece 1 and the second connecting piece 2 cooperate to form two volume cavities; pipelines 3 and valve bodies 4 are respectively placed on the inner sides of the two volume cavities, and are clamped and limited by the first connecting piece 1 and the second connecting piece 2; at least one layer of thermal insulation cotton is arranged between the first connecting piece 1 and the second connecting piece 2.

[0029] In this embodiment, the material of the first connecting member and the second connecting member is metal, and the pipeline and the needle valve are clamped and limited by the first connecting member and the second connecting member to fix the relative position of the pipeline and the needle valve, and the needle valve is supported by the first connecting member. Insulation cotton is placed on the side of the first connecting member and the second connecting member close to the pipeline and the needle valve. In this way, when the needle valve is used to fill nitrogen to maintain the pressure of the refrigeration system and to fill the refrigerant, the needle valve is firmly fixed, and the relative position of the needle valve and the pipeline is clamped and limited, thereby reducing the deformation and cracking of the welding joints between the needle valve and the main pipeline due to improper operation, which may cause refrigerant leakage in the refrigeration system. The insulation cotton can insulate the pipeline at low temperature and provide buffering at the same time, avoiding direct contact between the first connecting member and the second connecting member and the pipeline, causing the metal connecting member to bond at low temperature, making it difficult to disassemble and replace.

[0030] After the first connecting member 1 and the second connecting member 2 are matched, the second clamping portion 12 is located below the valve body 4 to support the valve body 4 .

[0031] The first connector 1 includes a first clamping portion 11, the other side of the first clamping portion 11 is connected to the second clamping portion 12, and an angle is formed between the first clamping portion 11 and the second clamping portion 12. A first assembly portion 13 is connected to one side of the second clamping portion 12, and a third clamping portion 14 is connected to the top of the first assembly portion 13. The middle of the third clamping portion 14 is bent away from the valve body 4 and matched with the valve body 4. One side of the first assembly portion 13 extends toward the direction of the second connector 2 and is supported below the second connector 2.

[0032] In this embodiment, the first connecting member 1 is a bent metal sheet, including a first clamping portion 11, a second clamping portion 12, a first assembly portion 13, and a third clamping portion 14, wherein the first clamping portion 11 and the second clamping portion 12 are limited on both sides of the pipeline 3, and the third clamping portion 14 is bent to limit the two side surfaces of the valve body 4, so that the relative positions of the valve body 4 and the pipeline 3 are fixed, and the first assembly portion 13 is located below the valve body 4, and the valve body 4 is supported by the third clamping portion 14, thereby reducing the risk of the valve body 4 bending under gravity and causing the weld to break with the pipeline.

[0033] The second connector 2 includes a second assembly portion 21, which cooperates with the first assembly portion 13, and one side of the second assembly portion 21 extends in the direction of the first connector 1 to limit the first connector 1. One side of the second assembly portion 21 is connected to a fourth clamping portion 22, which is bent into several sections and cooperates with the first clamping portion 11 and the second clamping portion 12 to clamp and limit the pipeline 3. One end of the fourth clamping portion 22 is connected to a third assembly portion 23, and one side of the third assembly portion 23 extends in the direction of the first connector 1 to limit the first connector 1.

[0034] In this embodiment, the second assembly portion 21 cooperates with the first assembly portion 13, and the side edge of the first assembly portion 13 extending is adjacent to and perpendicular to the side edge of the second assembly portion 21 extending, so that the first connecting member 1 and the second connecting member 2 are limited and matched, and the fourth clamping portion 22 is connected to one side of the second assembly portion 21 to cooperate with the first clamping portion 11 and the second clamping portion 12 to clamp and limit the pipeline 3. The fourth clamping portion 22 is preferably bent in three sections to clamp the pipeline 3. The third assembly portion 23 is connected to the other side of the fourth clamping portion 22, and one side of the third assembly portion 23 extends to cooperate with the first clamping portion 11 to limit one side in the vertical direction, which is convenient for quick alignment when installing the first connecting member 1 and the second connecting member 2.

[0035] The first clamping portion 11 and the third fitting portion 23 , and the first fitting portion 13 and the second fitting portion 21 are detachably connected.

[0036] In this embodiment, slots are provided on the first clamping portion 11 and the first assembly portion 13, and through holes corresponding to the positions of the slots are provided on the third assembly portion 23 and the second assembly portion 21. The first clamping portion 11 and the third assembly portion 23, and the first assembly portion 13 and the second assembly portion 21 are connected by bolts to facilitate disassembly and assembly of the first connecting member 1 and the second connecting member 2.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline fixing device, characterized in that: include: A first connecting member (1), and a second connecting member (2) matching with the first connecting member (1); The first connecting member (1) and the second connecting member (2) cooperate to form two volume cavities; A pipeline (3) and a valve body (4) are respectively placed inside the two volume chambers, and are clamped and limited by the first connecting piece (1) and the second connecting piece (2); At least one layer of thermal insulation cotton is arranged between the first connecting member (1) and the second connecting member (2).

2. The fixing device according to claim 1, characterized in that: The first connecting member (1) comprises a first clamping portion (11), the other side of the first clamping portion (11) is connected to a second clamping portion (12), and an angle is formed between the first clamping portion (11) and the second clamping portion (12).

3. The fixing device according to claim 2, characterized in that: One side of the second clamping portion (12) is connected to a first assembly portion (13), and the upper side of the first assembly portion (13) is connected to a third clamping portion (14).

4. The fixing device according to claim 3, characterized in that: The middle of the third clamping portion (14) is bent toward a side away from the valve body (4) to cooperate with the valve body (4).

5. The fixing device according to claim 3, characterized in that: One side of the first assembly portion (13) extends in the direction of the second connecting member (2) and is supported below the second connecting member (2).

6. The fixing device according to claim 3, characterized in that: The second connecting member (2) comprises a second assembly portion (21), the second assembly portion (21) cooperates with the first assembly portion (13), and one side of the second assembly portion (21) extends in the direction of the first connecting member (1) to limit the first connecting member (1).

7. The fixing device according to claim 6, characterized in that: One side of the second assembly portion (21) is connected to a fourth clamping portion (22), and the fourth clamping portion (22) is bent into a plurality of sections, cooperating with the first clamping portion (11) and the second clamping portion (12) to clamp and limit the pipeline (3).

8. The fixing device according to claim 7, characterized in that: One end of the fourth clamping portion (22) is connected to the third assembly portion (23), and one side of the third assembly portion (23) extends in the direction of the first connecting member (1) to limit the position of the first connecting member (1).

9. The fixing device according to claim 2, characterized in that: After the first connecting member (1) and the second connecting member (2) are matched, the second clamping portion (12) is located below the valve body (4) to support the valve body (4).

10. The fixing device according to claim 8, characterized in that: The first clamping portion (11) and the third assembly portion (23), and the first assembly portion (13) and the second assembly portion (21) are detachably connected.

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