Shock-proof pipe with reduced leakage points

Abstract

The utility model discloses a shock-proof pipe with reduced leakage points, and aims to solve the technical problem of more leakage points caused by connection of shock-proof pipes used in refrigeration equipment. The utility model relates to a shock-proof pipe with reduced leakage points, which comprises a net sleeve formed by weaving steel wires, a corrugated pipe and a connecting pipe are wrapped on the inner side of the net sleeve, the axial end face of the corrugated pipe is a binding face, the binding face is perpendicular to the axial direction of the corrugated pipe, the binding face is attached to a flange of the connecting pipe, and the flange is perpendicular to the axial direction of the connecting pipe. And a crimping ring is arranged on the common outer side surface of the connecting pipe and the net sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration pipelines, in particular to a shock-absorbing pipe with reduced leakage points. Background Art

[0002] At present, with the improvement of people's living standards, refrigeration technology, cold chain transportation, and air-conditioning equipment have greatly affected all areas of production and life. In refrigeration equipment, the refrigerant requires the pipeline to have multiple requirements such as pressure resistance, leak-proofness, and a wide temperature adaptability range. In particular, the shock-absorbing pipes used in refrigeration equipment must not only meet the above requirements, but also require long-term shock resistance. The shock-absorbing pipes currently used by the applicant have already obtained multiple related patents in the research and development process of more than ten years. However, in order to meet the design requirements and promote their use on a large scale, it is necessary to require simple product structure, reduced manufacturing costs, leakage prevention, detection in place and other related technical requirements. In addition, how to achieve the bursting pressure requirements of "General Technical Conditions for Metal Hoses" GB / T14525-2010, without the need for the traditional new structure that relies on the welding of three components of the woven mesh, joints, and pressure rings, and how to reduce the welding points of the shock-absorbing pipe connection are all technical problems that need to be solved by the utility model. Utility Model Content

[0003] The utility model aims to provide a shock-absorbing pipe with convenient connection, safe use, good shock-absorbing effect and reduced leakage points in view of the defects and shortcomings of the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a shock-absorbing tube with reduced leakage points, including a mesh sleeve formed by woven steel wire, the inner side of the mesh sleeve is coated with a bellows and a connecting tube, the axial end face of the bellows is a fitting surface, the fitting surface is perpendicular to the axial direction of the bellows, the fitting surface fits the flange of the connecting tube, the flange is perpendicular to the axial direction of the connecting tube, and a crimping ring is provided on the common outer side of the connecting tube and the mesh sleeve. The shock-absorbing tube with reduced leakage points adopts a mesh sleeve with the inner side coated with a bellows to achieve a shock-absorbing effect, the axial end face of the bellows is a fitting surface, the fitting surface is perpendicular to the axial direction of the bellows, the fitting surface fits the flange of the connecting tube, the flange is perpendicular to the axial direction of the connecting tube, that is, a planar connecting surface is formed between the fitting surface and the flange of the connecting tube, which is also the only leakage point at one end of the shock-absorbing tube of the utility model, and the leakage points are relatively reduced compared with at least two leakage points at one end of the traditional shock-absorbing tube. In order to achieve the tensile strength of the shock-absorbing tube, a crimping ring is provided on the common outer side of the connecting tube and the mesh sleeve to form an integrated structure. The mesh sleeve has strong tensile resistance, which prevents the corrugated tube from being subjected to a large axial tension, thereby improving the overall tensile and compressive resistance of the shock-absorbing tube.

[0005] There are two connecting pipes, which are respectively attached to the fitting surfaces at both ends of the corrugated pipe through flanges to form a two-way connection performance of the shock-absorbing pipe, thereby preventing the leakage of the medium flowing through the shock-absorbing pipe.

[0006] There are two crimping rings, which are respectively crimped to the two ends of the connecting tube and the mesh sleeve to form the bidirectional tensile resistance of the shock-absorbing tube.

[0007] The bending surface of the mesh sleeve is clamped between the crimping end surface of the crimping ring and the flange, and the connection relationship between the mesh sleeve, the crimping ring and the connecting pipe is locked through the bending surface to prevent loosening.

[0008] The crimping end face, flange, bending face and fitting face of the crimping ring are all located on the same axis, forming a crimping force in a uniform direction, thereby enhancing the tensile strength of the shock-absorbing tube.

[0009] The flange of the connecting pipe is welded on the fitting surface to form a planar welding effect, thereby avoiding the air leakage problem caused by cold welding.

[0010] By adopting the above-mentioned technical scheme, the beneficial effects of the utility model are as follows: a crimping ring is provided on the common outer side surface of the connecting tube and the mesh sleeve to form an integrated structure of the connecting tube and the mesh sleeve, and the mesh sleeve has strong tensile resistance, which prevents the corrugated tube from being subjected to a large axial tension, and on the basis of improving the overall tensile and compressive resistance of the shock-absorbing tube, a planar connecting surface is formed between the fitting surface and the flange of the connecting tube, which is also the only leakage point at one end of the shock-absorbing tube of the utility model, and the leakage points are relatively reduced compared with at least two leakage points at one end of the traditional shock-absorbing tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] FIG1 is a schematic diagram of a three-dimensional structure of a shock-absorbing tube with reduced leakage points according to the present invention;

[0013] FIG2 is a schematic cross-sectional view of a shock-absorbing tube with reduced leakage points according to the present invention;

[0014] Figure 3 shows Figure 2 Enlarged structural diagram at A in the middle. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the drawings 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 of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0016] like Figure 1-3 As shown, a shock-absorbing tube with reduced leakage points includes a mesh sleeve 1 made of braided steel wire, the inner side of the mesh sleeve 1 is covered with a bellows 8 and a connecting tube 3, the axial end face of the bellows 8 is a fitting surface 7, the fitting surface 7 and the axial direction of the bellows 8 are mutually perpendicular, the fitting surface 7 fits the flange 6 of the connecting tube 3, the flange 6 and the axial direction of the connecting tube 3 are mutually perpendicular, and a crimping ring 2 is provided on the common outer side of the connecting tube 3 and the mesh sleeve 1. The fitting surface 7 is welded to the flange 6 of the connecting tube 3, so that there is only one welding leakage point in the connection structure at one end of the entire shock-absorbing tube, which greatly improves the safety performance of the shock-absorbing tube.

[0017] As a preferred structure, there are two connecting tubes 3, which are respectively attached to the fitting surfaces 7 at both ends of the corrugated tube 8 through flanges 6. There are two crimping rings 2, which are respectively crimped to the two ends of the connecting tube 3 and the mesh sleeve 1. The two connecting tubes 3 and the two crimping rings 2 form a two-way integrated connection structure at both ends of the shock absorber tube to improve the tensile strength of the shock absorber tube.

[0018] In order to prevent the axial connection of the shock absorber tube from loosening, the bending surface 4 of the mesh sleeve 1 is clamped between the crimping end surface 5 of the crimping ring 2 and the flange 6. The crimping end surface 5 of the crimping ring 2, the flange 6, the bending surface 4, and the fitting surface 7 are all located on the same axis, thereby improving the axial tensile strength of the shock absorber tube.

[0019] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing tube with reduced leakage points, comprising a mesh sleeve (1) formed by braiding steel wires, the inner side of the mesh sleeve (1) being coated with a corrugated tube (8) and a connecting tube (3), characterized in that: The axial end face of the bellows (8) is a fitting surface (7), the fitting surface (7) and the bellows (8) are axially perpendicular to each other, the fitting surface (7) fits the flange (6) of the connecting tube (3), the flange (6) and the connecting tube (3) are axially perpendicular to each other, and a crimping ring (2) is provided on the common outer side face of the connecting tube (3) and the mesh sleeve (1).

2. A shock-absorbing tube with reduced leakage points according to claim 1, characterized in that: There are two connecting pipes (3), which are respectively fitted to the fitting surfaces (7) at both ends of the corrugated pipe (8) through flanges (6).

3. A shock-absorbing tube with reduced leakage points according to claim 1, characterized in that: There are two crimping rings (2), which are respectively used to crimp the two ends of the connecting tube (3) and the mesh sleeve (1).

4. A shock-absorbing tube with reduced leakage points according to claim 1, characterized in that: The bending surface (4) of the mesh sleeve (1) is clamped between the crimping end surface (5) of the crimping ring (2) and the flange (6).

5. A shock-absorbing tube with reduced leakage points according to claim 4, characterized in that: The crimping end surface (5), the flange (6), the bending surface (4), and the fitting surface (7) of the crimping ring (2) are all located on the same axis.

6. A shock-absorbing tube with reduced leakage points according to claim 1, characterized in that: The fitting surface (7) is welded to the flange (6) of the connecting pipe (3).

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