Metal hose with protection effect

The detachable connection design between the support cylinder and the flange solves the problem of inconvenient disassembly and assembly of metal protective nets, enabling independent replacement of metal protective nets and improving the performance and convenience of metal hoses.

CN224150346UActive Publication Date: 2026-04-21HEBEI LONGZE RUBBER & PLASTIC PIPE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI LONGZE RUBBER & PLASTIC PIPE IND CO LTD
Filing Date
2025-06-18
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The metal protective mesh in existing metal hoses is inconvenient to install and remove, which means that if the hose is damaged during overall replacement, the entire hose must be replaced, and it cannot be replaced independently.

Method used

The support cylinder and flange are detachably connected, and the metal protective mesh is fixed to the flange by the outer ring and fastening rod, which can be independently disassembled and replaced.

Benefits of technology

It enables independent replacement of the metal protective mesh, improving the usability and convenience of the metal flexible hose.

✦ Generated by Eureka AI based on patent content.

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Abstract

The metal hose with the protection effect comprises a corrugated pipe, a supporting cylinder and a flange plate, the outer surface wall of the supporting cylinder is fixedly connected with the corrugated pipe, only the outer surface wall of the arc-shaped end of the supporting cylinder is fixedly connected with a protruding ring, and the inner surface wall of the flange plate is detachably connected with the supporting cylinder. A metal protective net and a fixing assembly used for fixing the metal protective net are integrated on the outer side of the flange plate. In the application, the protection of the corrugated pipe is realized through the metal protective net, the locking rod can be subsequently rotated to separate the supporting cylinder, so that the separation of the supporting cylinder and the flange plate is realized, the fastening rod connected between the outer ring and the flange plate is rotated to realize the separation of the metal protective net and the flange plate, and the flange plate on one side is taken down; when the metal hose is used, the metal protective net can be independently disassembled, assembled and replaced from the side, so that normal use of the metal hose is guaranteed, meanwhile, the metal protective net can be independently replaced, and the use effect of the metal hose with the protective effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of metal hose technology, and in particular to a metal hose with protective effect. Background Technology

[0002] A protective metal flexible conduit is a flexible conduit used to protect wires, cables or other cables from physical damage and environmental impact. It consists of a series of interconnected metal rings or spiral metal strips, and is usually made of materials such as steel, stainless steel or aluminum alloy.

[0003] Chinese Patent Publication No. CN221723610U, published on 20240917, discloses a protective metal flexible hose, comprising a metal flexible hose body, a first connecting flange at one end of the metal flexible hose body, a sealing ring on the outside of the first connecting flange, a second connecting flange at the other end of the metal flexible hose body, a support cylinder at one end of the inside of the metal flexible hose body, a connecting rod inside the support cylinder, a buffer disc on the outer circumference of the connecting rod, buffer holes on the inner wall of the buffer disc, an inner anti-corrosion layer on the inner surface of the metal flexible hose body, an outer anti-corrosion layer on the outer surface of the metal flexible hose body, a first fiber strip inside the outer anti-corrosion layer, and a second fiber strip on one side of the first fiber strip.

[0004] Existing metal hoses, such as those mentioned above, are mostly composed of corrugated pipes, metal protective nets, support cylinders, and flanges. In practice, the metal protective nets and corrugated pipes are directly integrated onto the support cylinders. It is inconvenient to disassemble and install the metal protective nets independently, which often results in the replacement of the entire metal hose if the metal protective nets are damaged. Therefore, there is an urgent need to propose corresponding metal hoses with protective effects to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a protective metal hose in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A protective metal flexible hose includes a corrugated pipe, a support cylinder, and a flange. The outer wall of the support cylinder is fixedly connected to the corrugated pipe. A convex ring is fixedly connected to the outer wall of the arc-shaped end of the support cylinder. The inner wall of the flange is detachably connected to the support cylinder. A metal protective mesh and a fixing component for fixing the metal protective mesh are integrated on the outer side of the flange.

[0008] Preferably, the fixing component includes an outer ring fixedly connected to the outer wall of the horizontal end of the metal protective mesh, and the outer ring is fixedly connected to the flange by a fastening rod.

[0009] Preferably, a protruding rod is fixedly connected to the outer wall of the outer ring, and the outer wall of the protruding rod is inserted into the inside of the flange through a slot.

[0010] Preferably, an extension ring is fixedly connected to the outer wall of the flange, and the extension ring is fixedly connected to the support cylinder by a locking rod.

[0011] Preferably, the inner surface of the extension ring is interference-fitted with a sealing plug, and the bottom of the sealing plug abuts against the top of the locking rod.

[0012] Preferably, a sealing ring is fitted around the outer side of the extension ring, and the sealing ring abuts against the side of the flange away from the bellows.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this application, the corrugated pipe is protected by a metal protective mesh. Subsequently, the locking rod can be rotated to separate the support cylinder, thereby separating the support cylinder from the flange. By rotating the fastening rod connected between the outer ring and the flange, the metal protective mesh can be separated from the flange. After removing the flange on one side, the metal protective mesh can be independently disassembled and replaced from that side. This ensures the normal use of the metal hose while allowing the metal protective mesh to be replaced independently, thus improving the performance of the protective metal hose.

[0015] 2. In this application, when fixing the outer ring to the flange, the protruding rod is first inserted into the slot. At this time, the outer ring and the flange are correctly aligned. By rotating multiple sets of fastening rods in sequence, the outer ring and the flange can be fixed. In this way, by constraining the position of the outer ring, the connection between the outer ring and the flange is ensured, thereby improving the ease of use of the metal flexible hose with protective effect. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0017] Figure 2 A schematic diagram of a locking rod structure according to an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of a support cylinder structure according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic diagram of a protruding rod structure according to an embodiment of the present invention is shown.

[0020] Legend:

[0021] 1. Bellows; 2. Support cylinder; 3. Convex ring; 4. Flange; 5. Extension ring; 6. Metal protective mesh; 7. Outer ring; 8. Fastening rod; 9. Sealing plug; 10. Locking rod; 11. Slot; 12. Convex rod. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A protective metal flexible hose includes a corrugated pipe 1, a support cylinder 2 and a flange 4. The outer wall of the support cylinder 2 is fixedly connected to the corrugated pipe 1. Only the outer wall of the arc-shaped end of the support cylinder 2 is fixedly connected to a protruding ring 3. The inner wall of the flange 4 is detachably connected to the support cylinder 2. The outer side of the flange 4 is integrated with a metal protective mesh 6 and a fixing component for fixing the metal protective mesh 6.

[0025] The corrugated pipe 1 is protected by the metal protective mesh 6. The locking rod 10 can be rotated to separate the support cylinder 2, thereby separating the support cylinder 2 from the flange 4. The fastening rod 8 connected between the outer ring 7 and the flange 4 is rotated to separate the metal protective mesh 6 from the flange 4. The flange 4 on one side can be removed, and the metal protective mesh 6 can be independently disassembled and replaced from that side. This ensures the normal use of the metal hose while allowing the metal protective mesh 6 to be replaced independently, thus improving the performance of the protective metal hose.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, the fixing assembly includes an outer ring 7 fixedly connected to the outer wall of the horizontal end of the metal protective mesh 6. The outer ring 7 is fixedly connected to the flange 4 via fastening rods 8. A protruding rod 12 is fixedly connected to the outer wall of the outer ring 7. The outer wall of the protruding rod 12 is inserted into the inside of the flange 4 via a slot 11. When fixing the outer ring 7 to the flange 4, the protruding rod 12 is first inserted into the slot 11. At this time, the outer ring 7 and the flange 4 are correctly aligned. By rotating multiple sets of fastening rods 8 in sequence, the outer ring 7 and the flange 4 can be fixed. In this way, by constraining the position of the outer ring 7, the connection between the outer ring 7 and the flange 4 is ensured, thereby improving the ease of use of the protective metal flexible hose.

[0027] Specifically, such as Figure 2 and Figure 3As shown, an extension ring 5 is fixedly connected to the outer wall of the flange 4. The extension ring 5 is fixedly connected to the support cylinder 2 through the locking rod 10. This ensures that the connection of the flange 4 is not affected, while also ensuring the ease of assembly and disassembly of the flange 4 and the support cylinder 2. A sealing plug 9 is interference-fitted to the inner wall of the extension ring 5, and the bottom of the sealing plug 9 abuts against the top of the locking rod 10. The interference fit ensures the stability of the sealing plug 9 and provides isolation and protection for the locking rod 10. A sealing ring is sleeved on the outer side of the extension ring 5, and the sealing ring abuts against the side of the flange 4 away from the bellows 1, thus ensuring the airtightness of the connection between the flange 4 and the external components.

[0028] Working principle: The corrugated pipe 1 is protected by the metal protective mesh 6. The locking rod 10 can then be rotated to separate the support cylinder 2, thus separating the support cylinder 2 from the flange 4. Rotating the fastening rod 8 connecting the outer ring 7 and the flange 4 further separates the metal protective mesh 6 from the flange 4. Removing one side of the flange 4 allows for independent disassembly and replacement of the metal protective mesh 6 from that side. This ensures the normal use of the metal hose while allowing for independent replacement of the metal protective mesh 6, thereby improving the effectiveness of the protective metal hose. When fixing the outer ring 7 to the flange 4, the protruding rod 12 is first inserted into the slot 11, ensuring correct alignment between the outer ring 7 and the flange 4. Rotating multiple sets of fastening rods 8 sequentially fixes the outer ring 7 to the flange 4. By constraining the position of the outer ring 7, the connection between the outer ring 7 and the flange 4 is made convenient, thus improving the ease of use of the protective metal hose.

[0029] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A metal hose having a protective effect, comprising a bellows (1), a support cylinder (2) and a flange (4), characterized in that, The outer wall of the support cylinder (2) is fixedly connected to the corrugated pipe (1). A convex ring (3) is fixedly connected to the outer wall of the arc end of the support cylinder (2). The inner wall of the flange (4) is detachably connected to the support cylinder (2). A metal protective net (6) and a fixing component for fixing the metal protective net (6) are integrated on the outer side of the flange (4).

2. A metal hose having a protective effect according to claim 1, characterized in that, The fixing component includes an outer ring (7) that is fixedly connected to the outer wall of the horizontal end of the metal protective net (6), and the outer ring (7) is fixedly connected to the flange (4) by a fastening rod (8).

3. A metal hose having a protective effect according to claim 2, characterized in that, The outer ring (7) has a protruding rod (12) fixedly connected to its outer wall. The outer wall of the protruding rod (12) is inserted into the flange (4) through a slot (11).

4. A metal hose having a protective effect according to claim 3, characterized in that, An extension ring (5) is fixedly connected to the outer wall of the flange (4), and the extension ring (5) is fixedly connected to the support cylinder (2) by a locking rod (10).

5. A metal hose with a protective effect according to claim 4, characterized in that, The inner surface of the extension ring (5) is fitted with a sealing plug (9), and the bottom of the sealing plug (9) abuts against the top of the locking rod (10).

6. A metal hose with a protective effect according to claim 5, characterized in that, The extension ring (5) is fitted with a sealing ring on its outer side, and the sealing ring abuts against the side of the flange (4) away from the bellows (1).