Coated high-sealing metal hose

Abstract

The utility model relates to the technical field of metal hoses, in particular to a coated high-sealing metal hose which comprises a corrugated pipe and a plastic inner coating arranged in the corrugated pipe. Fixing rings are welded to the two ends of the corrugated pipe, a braid layer is wound around the outer portion of the corrugated pipe, the two ends of the braid layer are fixed to butt joint rings, and first welding layers are formed between the butt joint rings and the fixing rings through argon arc welding. The plastic inner coating is formed in the corrugated pipe, so that the overall corrosion resistance is improved, the sealing performance is better, the requirement for the corrugated pipe is reduced, the butt joint ring and the fixing ring are welded, the first welding layer is formed between the butt joint ring and the fixing ring, the two ends of the braid layer outside the corrugated pipe are fixed through the fixing ring, and the sealing performance is improved. And the overall firmness and the sealing performance are better.

Description

Technical Field

[0001] This utility model relates to metal hoses, specifically to a high-sealing metal hose with a covering, and belongs to the field of metal hose technology. Background Technology

[0002] Coated metal hoses are a type of pipe material with special structure and performance. They are made of corrugated pipes made of metal materials such as stainless steel and copper. These corrugated pipes have good flexibility and pressure resistance. The corrugated pipes are usually coated with one or more other materials, such as polytetrafluoroethylene (PTFE), nylon, and rubber.

[0003] However, while the outer sheath of the metal hose improves its pressure resistance and protection, the internal corrosion resistance of the metal hose is poor, and the material requirements for the corrugated pipe are high. In addition, the outer sheath of the corrugated pipe is in direct contact with the end, resulting in poor stability of the connection between the corrugated pipe and the end. Utility Model Content

[0004] The purpose of this utility model is to provide a high-sealing metal hose by forming a plastic inner lining inside the corrugated pipe to solve the above problems. This improves the overall corrosion resistance and sealing performance, and reduces the requirements for the corrugated pipe. By welding the connecting ring and the fixing ring, a first weld layer is formed between the connecting ring and the fixing ring, and the two ends of the braided layer on the outside of the corrugated pipe are fixed by the fixing ring, which improves the overall firmness and sealing performance.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a high-sealing metal flexible tube is covered, including a corrugated tube and a plastic inner lining disposed inside the corrugated tube; fixing rings are welded to both ends of the corrugated tube, a braided layer is wrapped around the outside of the corrugated tube, the two ends of the braided layer are fixed to the butt ring, and the butt ring and the fixing ring are welded together by argon arc welding to form a first weld layer.

[0006] Preferably, the mating ring has an end fixed to its exterior, and the end has a plastic inner lining to improve the overall sealing performance.

[0007] Preferably, the mating ring and the end are welded together by argon arc welding to form a second weld layer, which improves the sealing between the mating ring and the end.

[0008] Preferably, the end of the end is provided with a thread, and the outside of the end is provided with a polygonal convex ring to facilitate rotation of the end.

[0009] Preferably, the end is connected to a mating assembly, the mating assembly including a connector, and the end and the connector are threaded together to facilitate the assembly of the parts.

[0010] Preferably, the outer wall of the end of the connector facing the end head has an octagonal structure, and the end of the connector away from the end head has a circular structure.

[0011] Preferably, the mating head is rotatably provided with a nut, and the nut has a rubber ring inside to improve the sealing performance.

[0012] The beneficial effects of this utility model are: the inner plastic lining of the corrugated pipe; the two ends of the corrugated pipe are welded with fixing rings, the outer side of the corrugated pipe is wrapped with a braided layer, the two ends of the braided layer are fixed to the butt rings, and the butt rings and fixing rings are welded together by argon arc welding to form a first weld layer; by forming a plastic lining inside the corrugated pipe, the overall corrosion resistance is improved, and the sealing performance is better, reducing the requirements for the corrugated pipe; by welding the butt rings and fixing rings, a first weld layer is formed between the butt rings and fixing rings, and the two ends of the braided layer on the outer side of the corrugated pipe are fixed by the fixing rings, the overall firmness and sealing performance are better. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the docking assembly of this utility model;

[0015] Figure 3 This is a cross-sectional view of the corrugated pipe of this utility model;

[0016] Figure 4 for Figure 3 Enlarged schematic diagram of part A.

[0017] In the diagram: 1. Plastic inner lining; 2. End; 3. Convex ring; 4. Butt ring; 5. Braided layer; 6. Butt assembly; 601. Butt joint; 602. Nut; 603. Rubber ring; 7. Bellows; 8. Retaining ring; 9. First weld layer; 10. Second weld layer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4As shown, a high-sealing metal flexible hose includes a corrugated pipe 7 and a plastic inner lining 1 disposed inside the corrugated pipe 7. Fixing rings 8 are welded to both ends of the corrugated pipe 7, and a braided layer 5 is wound around the outside of the corrugated pipe 7. The two ends of the braided layer 5 are fixed to a connecting ring 4. The connecting ring 4 and the fixing ring 8 are welded together by argon arc welding to form a first weld layer 9. The connecting ring 4 and the end 2 are welded together by argon arc welding to form a second weld layer 10. By forming the plastic inner lining 1 inside the corrugated pipe 7 and the end 2, the overall corrosion resistance is improved, and the sealing performance is better, reducing the requirements on the corrugated pipe 7. By welding the connecting ring 4 to the fixing ring 8, a first weld layer 9 is formed between the connecting ring 4 and the fixing ring 8, and the two ends of the braided layer 5 outside the corrugated pipe 7 are fixed by the fixing ring 8, improving the overall robustness and sealing performance. Then, the connecting ring 4 is welded to the end 2.

[0020] As a technical optimization of this utility model, the end of the end head 2 is provided with a thread, and the outer side of the end head 2 is provided with a polygonal convex ring 3, which facilitates driving the end head 2 through the convex ring 3 and makes the assembly of the end head 2 more convenient.

[0021] As a technical optimization of this utility model, the end 2 is connected to the docking component 6. The outer wall of the end of the docking connector 601 facing the end 2 has an octagonal structure, which makes it easier to assemble the docking connector 601 and the end 2. The end of the docking connector 601 away from the end 2 has a circular structure. A nut 602 is rotatably provided on the docking connector 601, and a rubber ring 603 is provided inside the nut 602. The end 2 and the docking connector 601 are threaded together. After the assembly is completed, the nut 602 is connected to the external connector, so that the rubber ring 603 abuts against the external connector.

[0022] In use, this utility model improves the overall corrosion resistance and sealing performance by forming a plastic inner lining 1 inside the corrugated pipe 7 and the end 2, thus reducing the requirements for the corrugated pipe 7. By welding the connecting ring 4 to the fixing ring 8, a first weld layer 9 is formed between the connecting ring 4 and the fixing ring 8, and the two ends of the braided layer 5 on the outside of the corrugated pipe 7 are fixed by the fixing ring 8, thus improving the overall firmness and sealing performance. Then, the connecting ring 4 is welded to the end 2, which improves the firmness of the high-sealing metal hose. Then, the end 2 is threaded to the connector 601. After assembly, the nut 602 is connected to the external connector, so that the rubber ring 603 abuts against the external connector.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-sealing metal hose, comprising a corrugated tube (7) and a plastic inner covering (1) provided inside the corrugated tube (7); characterized in that: The bellows (7) is welded with fixing rings (8) at both ends, the outside of the bellows (7) is wound with a woven layer (5), both ends of the woven layer (5) are fixed to butt rings (4), and the butt rings (4) and the fixing rings (8) are welded by argon arc welding to form a first welding layer (9).

2. The high-seal metal hose with a coating according to claim 1, characterized in that: The outside of the butt rings (4) is fixed with end heads (2), and the inside of the end heads (2) is provided with plastic inner coverings (1).

3. The high-seal metal hose with a coating according to claim 2, characterized in that: The butt rings (4) and the end heads (2) are welded by argon arc welding to form a second welding layer (10).

4. The high-seal metal hose with a coating according to claim 2, characterized by: The end heads (2) are provided with threads at the ends, and the outside of the end heads (2) is provided with convex rings (3) of polygonal structure.

5. The high-seal metal flexible pipe according to claim 2, wherein: The end heads (2) are connected with butt assemblies (6), the butt assemblies (6) comprise butt heads (601), and the end heads (2) and the butt heads (601) are connected by threads.

6. The high-seal metal hose with a coating according to claim 5, characterized in that: The end of the butt head (601) facing the end head (2) is of octagonal structure, and the end of the butt head (601) away from the end head (2) is of circular ring structure.

7. The high-seal metal hose with a coating according to claim 6, characterized in that: A nut (602) is rotatably arranged on the butt head (601), and the inside of the nut (602) is provided with a rubber ring (603).

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