CN217328874U

CN217328874U - High pressure resistant corrugated metal hose

Info

Publication number: CN217328874U
Application number: CN202123454848.6U
Authority: CN
Inventors: 黄伟; 赵辉; 周苏阳; 徐双德
Original assignee: Ningbo Tianxin Metal Hose Co ltd
Current assignee: Ningbo Tianxin Metal Hose Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-30
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to a high pressure resistant corrugated metal hose, which comprises a flange joint, a lantern ring, a corrugated pipe and a net cover, wherein the corrugated pipe is welded and fixed at the inner side of the flange joint, the net cover is welded at the welding part, and the net cover is tightly pressed by the lantern ring and fixed with the corrugated pipe; the corrugated pipe is characterized in that a clamping ring type embedded ring is embedded at a section of wave trough of the corrugated pipe close to the flange joint end. Above-mentioned structure forms the reinforcement to bellows trough department to non-deformable inefficacy improves the compressive capacity.

Description

High-pressure-resistant corrugated metal hose

Technical Field

The utility model relates to a metal pipe fitting field is a high pressure resistant ripple metal collapsible tube.

Background

The corrugated metal hose is one of metal hose products, is a high-quality flexible pipeline in modern industrial pipelines, has the characteristics of good flexibility, fatigue resistance, high pressure bearing capacity, good temperature resistance, corrosion resistance, strong sealing performance and the like, has longer service life compared with other rubber or plastic hoses, and has extremely wide application. However, with the increasing pressure of the existing liquid and gas supply, the problem that the corrugated metal hose is deformed due to high pressure often occurs in practical use, and the deformation is mainly concentrated at the position close to the pipe joint, because the joint of the pipe joint and the corrugated pipe of the metal hose is hard connected, the flexibility is not good enough, so that the corrugated metal hose is difficult to effectively deform and buffer sudden high-pressure changes, and direct deformation or damage is caused. Therefore, the existing corrugated metal hose needs to be improved so as to enhance the deformation resistance of the corrugated pipe close to the pipe joint, thereby improving the pressure-bearing effect.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide a high-pressure resistant corrugated metal hose to the field, which solves the technical problems that the pressure resistance of the existing similar corrugated pipe close to the pipe joint is not good enough, and high pressure or extrusion deformation easily occurs. The purpose is realized by the following technical scheme.

A high-pressure-resistant corrugated metal hose comprises a flange joint, a lantern ring, a corrugated pipe and a net sleeve, wherein the corrugated pipe is fixedly welded on the inner side of the flange joint, the net sleeve is welded at the welding position, and the net sleeve is tightly pressed by the lantern ring and is fixed with the corrugated pipe; the corrugated pipe is characterized in that a clamping ring type embedded ring is embedded at a section of wave trough of the corrugated pipe close to the flange joint end. Through this structure, form the enhancement to bellows trough department to non-deformable inefficacy improves the pressure resistance.

The embedded ring comprises a C-shaped snap ring and a rubber ferrule, namely, the rubber ferrule is fixedly sleeved at the wave trough of the corrugated pipe, and the C-shaped snap ring is tightly clamped outside the rubber ferrule. Through this structure, inlay the contact of dress circle and bellows trough department and be elastic contact, the buffering effect is better.

The outer side surface of the rubber ferrule is provided with an annular caulking groove used for embedding the C-shaped clamping ring, and the C-shaped clamping ring is embedded into the annular caulking groove and then is in non-contact with the outer wall of the corrugated pipe. Through this structure, inlay the contact of dress circle and bellows trough department and be non-rigid contact, difficult wearing and tearing, life is longer. The embedded ring is replaced by an embedded sleeve, namely the embedded sleeve is an elastic rubber sleeve, the embedded sleeve and a section of wave trough and wave crest of the corrugated pipe close to the flange joint end form elastic sleeve connection, and the section of the outer sleeve at the wave trough of the outer wall of the embedded sleeve is fixed by a circular clamping ring. Through this structure, the wholeness is better, easily installs, and reaches the function purpose the same with inlaying the dress circle.

The embedded sleeve compresses the net sleeve along with the lantern ring and is simultaneously compressed and fixed on the corrugated pipe. Through this structure, it is more reliable to inlay the dress cover and fix for the bellows.

The utility model discloses overall structure is comparatively simple, easily makes the installation, can effectively strengthen the bellows and be close to the anti deformability of coupling department, and high pressure resistant is effectual, effectively improves reliability and the stability that uses, is fit for using as high pressure resistant ripple metal collapsible tube, or the improvement of metal collapsible tube structure of the same kind.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of the solution of the present invention.

Fig. 2 is a schematic view of a partial sectional structure of a second embodiment of the present invention.

Fig. 3 is a schematic view of the third partial sectional structure of the present invention.

The sequence numbers and names in the figure are: 1. flange joint, 2, lantern ring, 3, bellows, 4, net cover, 5, inlay dress circle, 501, rubber lasso, 502, C shape snap ring, 6, inlay dress cover, 7, snap ring.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings.

As shown in FIG. 1, as an embodiment of the solution, the corrugated metal hose comprises a flange joint 1, a collar 2, a corrugated pipe 3 and a net cover 4, wherein the corrugated pipe is welded and fixed on the inner side of the flange joint, the net cover is welded on the welding position, and the net cover is pressed by the collar and fixed with the corrugated pipe. A clamping ring type embedded ring 5 is embedded in a section of wave trough of the corrugated pipe close to the flange joint end.

As shown in fig. 2, as a second embodiment, the insert ring includes a C-shaped snap ring 502 and a rubber ferrule 501, that is, the rubber ferrule is fixed to a valley of the corrugated pipe in a sleeved manner, and the C-shaped snap ring is clamped outside the rubber ferrule. The method specifically comprises the following steps: the outer side surface of the rubber ferrule is provided with an annular caulking groove for embedding the C-shaped clamping ring, and the C-shaped clamping ring is embedded into the annular caulking groove and then is in non-contact with the outer wall of the corrugated pipe. Therefore, the embedded ring is in elastic contact with the trough, the buffering effect is better, the embedded ring is not easy to wear, and the service life is longer. As shown in fig. 3, as the third embodiment of the present invention, the embedded ring may also be replaced by an embedded sleeve 6, that is, the embedded sleeve is an elastic rubber sleeve, the embedded sleeve and a section of the wave trough and the wave crest of the corrugated pipe near the flange joint end form an elastic sleeve, and a snap ring 7 with a circular cross section is sleeved outside the wave trough on the outer wall of the embedded sleeve to form a fixation. The embedded sleeve is tightly pressed and fixed on the corrugated pipe along with the lantern ring to tightly press the net sleeve, so that the corrugated pipe is firm and stable.

The above description is intended to illustrate the technical means of the present invention, and not to limit the technical scope of the present invention. Obvious modifications or substitutions for the present invention by a person of ordinary skill in the art in combination with the prior art also fall within the protection scope of the present invention.

Claims

1. A high-pressure-resistant corrugated metal hose comprises a flange joint (1), a lantern ring (2), a corrugated pipe (3) and a net sleeve (4), wherein the corrugated pipe is welded and fixed on the inner side of the flange joint, the net sleeve is welded at the welding position, and the net sleeve is tightly pressed by the lantern ring and fixed with the corrugated pipe; the corrugated pipe is characterized in that a clamping ring type embedded ring (5) is embedded in a section of wave trough of the corrugated pipe (3) close to the flange joint (1).

2. The high-pressure-resistant corrugated metal hose as claimed in claim 1, wherein the embedded ring (5) comprises a C-shaped snap ring (502) and a rubber ferrule (501), the rubber ferrule is sleeved and fixed at the wave trough of the corrugated pipe (3), and the C-shaped snap ring is clamped outside the rubber ferrule.

3. The high pressure resistant corrugated metal hose according to claim 2, wherein the outer side surface of the rubber ferrule (501) is provided with an annular caulking groove for embedding the C-shaped snap ring (502), and the C-shaped snap ring is embedded in the annular caulking groove and then is not in contact with the outer wall of the corrugated pipe (3).

4. The high-pressure-resistant corrugated metal hose according to claim 2, wherein the embedded ring (5) is replaced by an embedded sleeve (6), namely the embedded sleeve is an elastic rubber sleeve, the embedded sleeve and a section of wave trough and wave crest of the corrugated pipe (3) close to the flange joint (1) form elastic sleeve connection, and a clamping ring (7) with a circular section is sleeved outside the wave trough of the outer wall of the embedded sleeve to form fixation.

5. The high pressure resistant corrugated metal hose according to claim 4, characterized in that the inlay sleeve (6) is press-fitted to the corrugated pipe (3) at the same time as the collar (2) presses the mesh sleeve (4).