Corrugated metal hose of compressor

Abstract

The utility model discloses a corrugated metal hose for a compressor, which relates to the technical field of corrugated pipes and comprises a corrugated pipe, a wear-resistant sleeve is coated on the surface of the corrugated pipe, a net sleeve is arranged on the wear-resistant sleeve, two ends of the corrugated pipe are respectively provided with a tension band, a connecting pipe is arranged at a port of the corrugated pipe, and the connecting pipe, the tension bands and the net sleeve are mutually welded. The corrugated pipe is protected through the wear-resistant sleeve arranged between the net sleeve and the corrugated pipe, the situation that the wave crest of the corrugated pipe is cut and damaged by the net sleeve due to vibration of the corrugated pipe is prevented, the service life of the corrugated metal hose of the compressor is prolonged, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows, in particular to a compressor corrugated metal hose. Background Art

[0002] The existing compressor corrugated metal hose structure is that the end of the bellows is flattened and self-melted and welded to the stainless steel pipe. A metal mesh is put on the outside of the bellows. Finally, the mesh, hoop and stainless steel pipe are welded in three dimensions. Due to the large vibration of the compressor during operation, the weld at the metal hose bellows is easily cracked, resulting in leakage.

[0003] For example, the publication number CN201884818U disclosed a metal bellows on June 29, 2011, which belongs to the field of pipeline technology. It is a hollow pipe with a corrugated structure, used for conveying heating, steam, etc. It includes an outer connecting layer and an inner connecting layer fixedly connected at both ends, the space formed between the outer connecting layer and the inner connecting layer is filled with thermal insulation material, the surfaces of the outer connecting layer and the inner connecting layer form concave waves and convex waves, and at least one end of the bellows is provided with a flared opening with a smooth surface. When the above-disclosed bellows is running on a compressor, due to vibration: on the one hand, the mesh steel wire on the bellows moves relative to the wave crest of the bellows and cuts the wave crest surface, which may cause the wave crest of the bellows to be cut and leak after a period of time, and on the other hand, the vibration may cause the flattened end of the bellows to break at the weld between the stainless steel pipe and the flattened end. Summary of the invention

[0004] The utility model aims to provide a compressor corrugated metal hose that is not prone to breakage. The utility model protects the corrugated pipe by a wear-resistant sleeve arranged between the corrugated pipe and the mesh sleeve to prevent the outer surface of the corrugated pipe from being cut by the mesh sleeve wire; the straight edge section of the corrugated pipe is inserted into the inner circle of the connecting pipe and the two end surfaces are flush and then self-melted and welded to prevent the corrugated pipe from breaking when working on the compressor.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve its technical problem is: a compressor corrugated metal hose, including a bellows, the surface of the bellows is covered with a wear-resistant sleeve, the wear-resistant sleeve is provided with a mesh sleeve, hoops are respectively provided at both ends of the bellows, and a connecting pipe is provided at the port of the bellows, and the connecting pipe, the hoop and the mesh sleeve are welded to each other.

[0006] The two sides of the corrugated pipe are provided with straight edge sections of the corrugated pipe, and the outer walls of the straight edge sections of the corrugated pipe are in contact with the inner wall of the connecting pipe.

[0007] The straight edge section of the corrugated pipe and the connecting pipe are self-melting welded.

[0008] The connecting pipe is provided with a joint, and the joint is provided with a connecting flange.

[0009] The connecting pipe is a stainless steel pipe.

[0010] One end of the joint is welded to the connecting pipe, and the other end of the joint is welded to the connecting flange.

[0011] The beneficial effects of the utility model are:

[0012] The wear-resistant sleeve provided between the mesh sleeve and the bellows is used to protect the bellows, so as to prevent the bellows from vibrating and causing the mesh sleeve to cut and damage the wave crest of the bellows, thereby extending the service life of the compressor corrugated metal hose and making it more practical. The end of the straight edge section of the bellows is self-welded to the end of the connecting pipe, which reduces or even avoids the breakage of the welding point at the end of the bellows due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the structure of the compressor corrugated metal hose.

[0014] Figure 2 for Figure 1 Schematic diagram of the side view structure.

[0015] Figure 3 for Figure 2 AA section view.

[0016] In the accompanying drawings: 1- bellows, 101- straight edge section of bellows, 2- connecting flange, 3- joint, 4- connecting pipe, 5- hoop, 6- mesh sleeve, 7- wear-resistant sleeve. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0019] like Figure 1-3 As shown, the compressor corrugated metal hose includes a bellows 1, the surface of the bellows 1 is covered with a wear-resistant sleeve 7, the wear-resistant sleeve 7 is provided with a mesh sleeve 6, the wear-resistant sleeve 7 protects the bellows 1, and hoops 5 are respectively provided at both ends of the bellows 1. A connecting pipe 4 is provided at the port of the bellows 1. The connecting pipe 4, the hoop 5 and the mesh sleeve 6 are welded to each other, and pre-pressing work is performed through the hoop 5. In this embodiment, two hoops 5 are provided, and the two hoops 5 are symmetrically arranged at both ends of the bellows 1.

[0020] When in use, the wear-resistant sleeve 7 is put on the bellows 1, the mesh sleeve 6 is put on the wear-resistant sleeve 7, the hoop 5 is respectively put on the two ends of the bellows 1 and buckled, the hoop 5 is buckled to connect the mesh sleeve 6 and the wear-resistant sleeve 7 with the connecting pipe 4, and then the connecting pipe 4, the hoop 5 and the mesh sleeve 6 are welded to each other. The wear-resistant sleeve 7 is arranged to prevent the bellows 1 from vibrating and causing the mesh sleeve 6 to cut and damage the wave crest of the bellows 1, thereby extending the service life of the compressor corrugated metal hose and making it more practical.

[0021] Specifically, refer to Figure 1 The bellows 1 is provided with straight edge sections 101 on both sides, and the outer wall of the straight edge section 101 of the bellows abuts against the inner wall of the connecting pipe 4, so as to realize the stable connection between the connecting pipe 4 and the bellows 1. After the connecting pipe 4 is extended to the straight edge section 101 of the bellows 1 for tight fit, the connection work is carried out.

[0022] The straight edge section 101 of the bellows and the connecting pipe 4 are self-welded to ensure a stable connection between the connecting pipe 4 and the bellows 1, and the end of the straight edge section 101 of the bellows 1 is self-welded to the end of the connecting pipe 4 to improve the stress condition of the weld at this location, prevent the vibration of the bellows from causing the weld to break, extend the service life of the compressor corrugated metal hose, and make it more practical.

[0023] A joint 3 is provided on the connecting pipe 4, and a connecting flange 2 is provided on the joint 3. The connection work between the corrugated pipe 1 and other components is realized through the joint 3 and the connecting flange 2.

[0024] The connecting pipe 4 is a stainless steel pipe, so that the welding work among the connecting pipe 4, the hoop 5 and the mesh sleeve 6 is convenient.

[0025] One end of the joint 3 is welded to the connecting pipe 4 , and the other end of the joint 3 is welded to the connecting flange 2 , thereby ensuring stability among the joint 3 , the connecting pipe 4 and the connecting flange 2 .

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor corrugated metal hose, characterized in that: The invention comprises a bellows (1), the surface of the bellows (1) is covered with a wear-resistant sleeve (7), a mesh sleeve (6) is provided on the wear-resistant sleeve (7), hoops (5) are provided at both ends of the bellows (1), a connecting pipe (4) is provided at the end of the bellows (1), and the connecting pipe (4), the hoop (5) and the mesh sleeve (6) are welded to each other.

2. The compressor corrugated metal hose according to claim 1, characterized in that: The two sides of the corrugated pipe (1) are provided with corrugated pipe straight edge sections (101), and the outer walls of the corrugated pipe straight edge sections (101) are in contact with the inner wall of the connecting pipe (4).

3. The compressor corrugated metal hose according to claim 2, characterized in that: The straight edge section (101) of the corrugated pipe and the connecting pipe (4) are welded by autogenous welding.

4. The compressor corrugated metal hose according to any one of claims 1 to 3, characterized in that: The connecting pipe (4) is provided with a joint (3), and the joint (3) is provided with a connecting flange (2).

5. The compressor corrugated metal hose according to claim 4, characterized in that: The connecting pipe (4) is a stainless steel pipe.

6. The compressor corrugated metal hose according to claim 5, characterized in that: One end of the joint (3) is welded to the connecting pipe (4), and the other end of the joint (3) is welded to the connecting flange (2).

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