CN220891338U - Flexure-resistant corrugated metal hose - Google Patents

Abstract

The utility model discloses a flexure-resistant corrugated metal hose which comprises a pipe fitting, wherein an anti-folding layer is arranged on the pipe fitting, an anti-folding groove is formed in the anti-folding layer, anti-folding pieces are arranged at two ends of the anti-folding groove, a connecting piece is arranged between the two anti-folding pieces, the anti-folding pieces and the connecting piece are both spiral, and the screw pitch of the connecting piece is smaller than that of the connecting piece. According to the flexure-resistant corrugated metal hose, the bending-resistant layer on the pipe fitting can achieve that the pipe fitting can be bent for a large angle and cannot be broken when being transported or installed, the buffer layer and the buffer piece can achieve that the residual force buffered by the bending-resistant piece is buffered when the pipe fitting is bent, the force is buffered for the first step through the connecting piece, and the force is absorbed by the bending-resistant piece.

Description

Flexure-resistant corrugated metal hose

Technical Field

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

Background

The metal hose is a very practical pipeline connecting piece and is widely applied in the modern industrial field. The flexibility, plasticity, pressure resistance, corrosion resistance, vibration prevention, noise reduction and the like of the metal hose have the irreplaceable function in industrial production.

According to publication (bulletin) No.: CN203442356U, publication (bulletin) day: 2014-02-19, a heat preservation type corrugated metal hose is disclosed, which comprises a corrugated pipe, joints at two ends of the corrugated pipe and a net sleeve sleeved outside the corrugated pipe, wherein the joints are spherical joints, the joints are connected with the corrugated pipe through connecting pipes, clamping parts are arranged at one ends of the connecting pipes, which are close to the corrugated pipe, of the connecting pipes, the net sleeve is fixedly connected with the connecting pipes and the clamping parts through jackets, and the two ends of the corrugated pipe are pre-pressed and contracted to form a corrugated pre-pressing area; the outer cover of the net cover is provided with an insulating layer, the insulating layer is polyurethane foam, the outer surface of the insulating layer is sleeved with a protection net cover, and springs are arranged at two ends of the protection net cover.

As is known from the above-mentioned patents and the prior art, when the metal hose is used, the vibration of industrial machines causes the hose to vibrate as well due to the use in industry, and when the vibration frequency is too high, the metal hose may crack, so that the hose cannot be used and can only be replaced.

Disclosure of utility model

The utility model aims to provide a flexure-resistant corrugated metal hose, which realizes that the metal hose can be buffered when vibrating.

In order to achieve the above object, the present utility model provides the following technical solutions: the bending-resistant corrugated metal hose comprises a pipe fitting, wherein an anti-bending layer is arranged on the pipe fitting, an anti-bending groove is formed in the anti-bending layer, anti-bending pieces are arranged at two ends of the anti-bending groove, and a connecting piece is arranged between the two anti-bending pieces;

The anti-bending piece and the connecting piece are both spiral, and the screw pitch of the connecting piece is smaller than that of the connecting piece.

Preferably, a buffer layer is arranged between the anti-folding layer and the pipe fitting, and a buffer groove for buffering is formed in the buffer layer.

Preferably, a buffer member is disposed in the buffer groove, and the buffer member is spirally wound in the buffer groove.

Preferably, the connecting piece and the anti-folding piece are both springs.

Preferably, the fracture-resistant layer is austenitic stainless steel.

Preferably, the buffer layer is an aluminum alloy.

In the technical scheme, the flexure-resistant corrugated metal hose provided by the utility model has the following beneficial effects: the pipe fitting can be transported or installed through the anti-folding layer on the pipe fitting, the pipe fitting can be bent by a large angle and can not be broken, various anti-folding articles can be installed through the anti-folding groove in the anti-folding layer, the pipe fitting vibration or the force can be buffered when the pipe fitting is bent through the anti-folding piece in the anti-folding groove, the pipe fitting is buffered when the pipe fitting is bent through the anti-folding piece, and meanwhile, the force born by the connecting piece can be transmitted to the anti-folding piece for buffering.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a buffer layer, an anti-folding member and a connecting member according to an embodiment of the present utility model;

Fig. 4 is a schematic structural diagram of a buffer layer and a buffer member according to an embodiment of the present utility model.

Reference numerals illustrate:

1. An anti-folding layer; 11. an anti-folding groove; 12. an anti-folding member; 13. a connecting piece; 14. a buffer layer; 15. a buffer tank; 16. a buffer member; 2. and a pipe fitting.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-4, an anti-flexible corrugated metal hose comprises a pipe fitting 2, wherein an anti-folding layer 1 is arranged on the pipe fitting, an anti-folding groove 11 is formed in the anti-folding layer 1, anti-folding pieces 12 are arranged at two ends of the anti-folding groove 11, and a connecting piece 13 is arranged between the two anti-folding pieces 12;

the bending-resistant piece 12 and the connecting piece 13 are both spiral, and the pitch of the connecting piece 13 is smaller than that of the connecting piece 13.

Specifically, if the pipe fitting 2 needs to be bent when in use, the anti-bending layer 1 on the pipe fitting 2 can perform first step buffering, and bending force is borne by the middle connecting piece 13, and because the pitch of the anti-bending piece 12 is smaller than that of the connecting piece 13, bending of the pipe fitting 2 can not be affected when bending, after the force is borne by the connecting piece 13, the force can be applied inwards, and meanwhile the anti-bending piece 12 can be pulled to the middle by the connecting piece 13, and the force is applied to the anti-bending piece 12, and meanwhile the bending force is buffered, so that the force on the pipe fitting 2 is reduced.

In the above scheme, when the pipe fitting 2 is transported or installed through the anti-folding layer 1 on the pipe fitting 2, the pipe fitting 2 can be bent by a large angle and cannot be broken, various anti-folding articles are installed through the anti-folding groove 11 in the anti-folding layer 1, the pipe fitting 2 can be buffered when vibrating or bending through the anti-folding piece 12 in the anti-folding groove 11, the pipe fitting 2 is buffered through the anti-folding piece 12 when being bent, and meanwhile, the force born by the connecting piece 13 can be transmitted to buffer the anti-folding piece 12.

As an embodiment of the present invention, according to fig. 2, 3 and 4, a buffer layer 14 is provided between the anti-folding layer 1 and the pipe 2, and a buffer groove 15 for buffering is provided on the buffer layer 14.

Further, a buffer member 16 is provided in the buffer tank 15, and the buffer member 16 is spirally wound in the buffer tank 15.

Specifically, when the pipe fitting 2 needs to be bent during use, the buffer layer 14 on the pipe fitting 2 can transfer force to the buffer piece 16 in the buffer groove 15, the buffer piece 16 can bend after being stressed, the buffer piece 16 after bending bears larger force, and meanwhile, the force on the pipe fitting 2 can be reduced to protect the pipe fitting 2 from bending, and the pipe fitting 2 is guaranteed not to break during bending.

Working principle: if the pipe fitting 2 needs to be bent during use, the bending-resistant layer 1 on the pipe fitting 2 can perform first-step buffering, bending force is borne by the middle connecting piece 13, bending of the pipe fitting 2 cannot be affected when bending is performed because the pitch of the bending-resistant piece 12 is smaller than that of the connecting piece 13, after the bending force is borne by the connecting piece 13, the bending-resistant piece 12 can be inwards used for force, the connecting piece 13 can be pulled to the middle, the force acts on the bending-resistant piece 12, the bending force is buffered, the force on the pipe fitting 2 is reduced, meanwhile, the rest less force can be transferred to the buffer piece 16 in the buffer groove 15 by the buffer layer 14 on the pipe fitting 2, bending can be performed after the buffer piece 16 bears larger force, the force on the pipe fitting 2 can be reduced, the pipe fitting 2 is prevented from bending, the pipe fitting 2 is prevented from being broken when bending, and simultaneously the buffer piece 16 and the bending-resistant piece 12 in the bending-resistant layer 1 can be synchronously unloaded, so that the force on the pipe fitting 2 cannot be applied to the pipe fitting 2.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (6)

1. The flexible corrugated metal hose is characterized by comprising a pipe fitting (2), wherein an anti-folding layer (1) is arranged on the pipe fitting, an anti-folding groove (11) is formed in the anti-folding layer (1), anti-folding pieces (12) are arranged at two ends of the anti-folding groove (11), and a connecting piece (13) is arranged between the two anti-folding pieces (12);

The anti-bending piece (12) and the connecting piece (13) are both in a spiral shape, and the screw pitch of the connecting piece (13) is smaller than that of the connecting piece (13).

2. The flexible corrugated metal hose according to claim 1, wherein a buffer layer (14) is provided between the bending-resistant layer (1) and the pipe fitting (2), and a buffer groove (15) for buffering is provided on the buffer layer (14).

3. The flexible corrugated metal hose according to claim 2, wherein a buffer member (16) is provided in the buffer tank (15), and the buffer member (16) is spirally wound in the buffer tank (15).

4. A corrugated metal hose according to claim 3, wherein the connecting element (13) and the bending element (12) are both springs.

5. A corrugated metal hose of the flexure-resistant type according to claim 2, characterized in that the anti-folding layer (1) is austenitic stainless steel.

6. A corrugated metal hose according to claim 5, wherein the buffer layer (14) is an aluminium alloy.