CN220930424U

CN220930424U - Metal hose

Info

Publication number: CN220930424U
Application number: CN202322455860.1U
Authority: CN
Inventors: 孟奇; 康明厂; 唐永生
Original assignee: Shanghai Blue Future Industrial Technology Co ltd
Current assignee: Shanghai Blue Future Industrial Technology Co ltd
Priority date: 2023-09-11
Filing date: 2023-09-11
Publication date: 2024-05-10
Anticipated expiration: 2033-09-11

Abstract

The utility model relates to the technical field of metal hoses, in particular to a metal hose which comprises a metal corrugated pipe, wherein the outer surface of the metal corrugated pipe is fixedly connected with a metal woven mesh sleeve; the outer surface of the metal corrugated pipe is provided with a plurality of wave crests, wave plates are arranged between the adjacent wave crests, and guide wave plates are arranged on the lower sides of the wave plates. According to the metal hose disclosed by the utility model, the mountain-shaped wave-shaped structure similar to the welded corrugated pipe structure is machined in a mechanical forming mode by adopting the special die, wave plates on two sides of a wave crest can move freely, the opening of the wave form is facilitated, the shape of the original wave form cannot be changed, the application range of a dynamic working condition of the metal hose can be greatly widened, the fatigue life of the metal hose is greatly prolonged, the replacement frequency of the metal bellows is reduced, the loss caused by leakage is reduced, and the shutdown time is shortened for high-added-value production enterprises.

Description

Metal hose

Technical Field

The utility model relates to the technical field of metal hoses, in particular to a metal hose.

Background

The metal hose has a temperature resistant range which cannot be replaced by a non-metal material, and the corrugated forming efficiency is continuously increased along with the maturity of a forming technology, so that the metal hose is widely applied to industries such as chemical industry, semiconductors and the like, but the metal material has the problem that fatigue fracture is easily generated due to stress concentration during bending movement, so that the stress concentration needs to be improved in the aspects of waveform design and wave distance control, the common corrugated shape of the metal hose inner tube is U-shaped, omega-shaped and' N-shaped, the wave distance is more than 2mm, the larger wave distance enables the number of the waves in the unit length of the metal hose to be limited, the waveforms are unfavorable for the opening of the waveforms, the stress generated by bending movement cannot be dispersed, even though the wave distance is reduced to more than 1mm through later dense wave treatment, the waveforms are deformed when the waveforms are compressed, excessive plastic deformation of a steel belt is caused to fracture due to excessive compression, and the welding pipe is formed by overlapping one metal sheet formed by punching; the overlapping wave plates can reduce the distance to the thickness of the two endless belts; the waveform is suitable for opening and closing under the motion condition, so that the metal woven mesh sleeve is excellent in flexibility and stretchability, but the metal woven mesh sleeve cannot be added, so that the metal woven mesh sleeve can only be applied to negative pressure and low pressure working conditions, each wave plate is required to be welded, the production efficiency is low, the metal flexible pipe cannot be used under the working conditions of medium-high pressure and bending motion, and therefore the metal flexible pipe has a short fatigue life (about 20 ten thousand times) under the working conditions of medium-high pressure and bending motion, and therefore, the metal flexible pipe is provided.

Disclosure of utility model

The utility model mainly aims to provide a metal hose which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a metal hose comprises a metal corrugated pipe, wherein the outer surface of the metal corrugated pipe is fixedly connected with a metal woven mesh sleeve;

The outer surface of the metal corrugated pipe is provided with a plurality of wave crests, wave plates are arranged between the adjacent wave crests, and guide wave plates are arranged on the lower sides of the wave plates.

The main body device comprises a metal corrugated pipe, wave crests are arranged on the upper portion of the outer surface of the metal corrugated pipe and the lower portion of the outer surface of the metal corrugated pipe, wave plates are arranged between a plurality of adjacent metal corrugated pipes, and a plurality of wave plates are arranged.

Preferably, the wave crests, the wave plates and the guide wave plates are all in an integrated structure.

Preferably, the peaks between adjacent ones are in a mountain-shaped structure.

Preferably, a cavity is arranged in the metal corrugated pipe.

Preferably, the outer surface of the metal corrugated pipe is tightly attached to the inner wall of the metal woven mesh sleeve.

Compared with the prior art, the utility model has the following beneficial effects:

The wave plates at two sides of the wave crest can move freely by adopting a special die to process a mountain-shaped wave structure similar to a welded corrugated pipe structure in a mechanical forming mode, which is beneficial to the opening of the wave form and does not change the shape of the original wave form; the wave distance can be reduced to 0.5mm, and the metal woven mesh sleeve is additionally arranged on the outer layer, so that the metal hose reaching millions of times under the medium-high-pressure bending movement working condition can be manufactured, the application range of the dynamic working condition can be greatly widened by the metal corrugated pipe, the fatigue life of the metal hose is greatly prolonged, the replacement frequency of the metal corrugated pipe is reduced, the loss caused by leakage is reduced, and the shutdown time is shortened for high-added-value production enterprises.

Drawings

FIG. 1 is a schematic view of a metal hose according to the present utility model in partial cross-section;

FIG. 2 is a schematic view of the overall structure of a metal hose according to the present utility model;

FIG. 3 is a schematic view showing a detail A of a metal hose according to the present utility model;

Fig. 4 is a schematic view of a partial structure of a metal hose according to the present utility model.

In the figure: 1. a metal bellows; 2. a metal woven mesh cover; 11. a peak; 12. a wave plate; 13. a guide wave plate.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, the present utility model provides a technical solution:

a metal hose comprises a metal corrugated pipe 1, wherein the outer surface of the metal corrugated pipe 1 is fixedly connected with a metal woven mesh 2;

The outer surface of the metal corrugated pipe 1 is provided with a plurality of wave crests 11, wave plates 12 are arranged between the adjacent wave crests 11, and guide wave plates 13 are arranged on the lower sides of the wave plates 12;

The wave crests 11, the wave plates 12 and the guide wave plates 13 are all in an integrated structure; the wave crests 11 between a plurality of adjacent wave crests are in a mountain-shaped structure; a cavity is arranged in the metal corrugated pipe 1; the outer surface of the metal corrugated pipe 1 is tightly attached to the inner wall of the metal woven mesh sleeve 2; the wave crests 11 between the adjacent wave crests 11 are in a mountain-shaped structure, and the wave plates 12 on the two sides of the wave crests 11 are subjected to small-amplitude bending treatment by using the die, so that the wave form is reinforced, the wave form is opened easily, and the structure of the original wave form mountain-shaped wave crest is not changed.

It should be noted that, the utility model is a metal hose, in the use process, the wave plate on the left side of the wave crest is subjected to small-amplitude bending treatment by using the die, the wave crest is reinforced, the opening of the wave crest is facilitated, the structure of the original wave crest (mountain-shaped wave crest) is not changed, the wave plate 12 on the two sides of the wave crest 11 can move freely in a small amplitude, the wave plate 13 can move greatly, when the wave crest is opened, the bottom of the guide pulling plate 13 is used as a fulcrum, the inclination of the guide wave plate changes, the wave crest is not changed, at the moment, the stress is smaller than that of the U-shaped structure, the shape of the original wave crest (mountain-shaped wave crest) is not changed when the wave crest is opened or compressed, only in that the angle change of the guide wave crest 13 is reduced to 0.5mm, the outer layer is additionally provided with the metal braiding net sleeve, the metal hose reaching millions times under the flexible motion working condition of medium and high pressure can be manufactured, the application range of dynamic working condition can be greatly widened, the fatigue life of the metal hose is greatly prolonged, the replacement frequency of the metal bellows 1 is reduced, the frequency of the metal hose is reduced, the leakage is reduced, and the loss caused by high-level production additional value is reduced.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A metal hose comprising a metal bellows (1), characterized in that: the outer surface of the metal corrugated pipe (1) is fixedly connected with a metal woven mesh sleeve (2);

The outer surface of the metal corrugated pipe (1) is provided with a plurality of wave crests (11), wave plates (12) are arranged between a plurality of adjacent wave crests (11), and guide wave plates (13) are arranged on the lower sides of the plurality of wave plates (12).

2. A metal hose according to claim 1, wherein: the wave crests (11), the wave plates (12) and the guide wave plates (13) are all in an integrated structure.

3. A metal hose according to claim 1, wherein: the wave crests (11) between a plurality of adjacent wave crests are in a mountain-shaped structure.

4. A metal hose according to claim 1, wherein: a cavity is arranged in the metal corrugated pipe (1).

5. A metal hose according to claim 1, wherein: the outer surface of the metal corrugated pipe (1) is tightly attached to the inner wall of the metal woven mesh sleeve (2).