CN210744666U - Explosion-proof flexible pipe - Google Patents

Abstract

The utility model relates to an explosion-proof flexible pipe, include: a pipe body; the pipe joints are arranged at two ends of the pipe body; a nut arranged on the pipe joint; the tube body is provided with an explosion-proof layer and a coating layer; a first annular groove and a second annular groove are formed in one end part of the pipe joint, and a protective pipe sleeve is welded on the edge of the end part; the end part of the explosion-proof layer is fixedly welded in the first annular groove, the inner side of the end part of the coating layer is provided with a positioning ring, and the end part of the coating layer and the positioning ring are fixedly welded in the second annular groove. The utility model discloses a set up the ring channel at the coupling terminal surface, weave the pipe with corrugated metal pipe and wire and insert the welding in the ring channel, can improve corrugated metal pipe's leakproofness and tensile antitorque performance, the protective pipe cover of coupling one end more can play the function that protective welding department received the rainwater erosion.

Description

Explosion-proof flexible pipe

Technical Field

The utility model belongs to the technical field of cable equipment, specifically speaking relates to an explosion-proof flexible pipe.

Background

The cable flexible pipe is a short pipe which is used for protecting a cable and can be bent and stretched to connect the cable threading pipe with the electrical instrument equipment, the cable at the cable inlet end is protected from being damaged by external factors, and the cable flexible pipe has sealing and explosion-proof functions. In the prior art, if the connection between the pipe body of the flexible pipe and the pipe joint is not tight and firm, water is easy to accumulate in the pipe, and the explosion-proof performance is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem to be solved of the present invention is to provide an explosion-proof flexible pipe, which solves the problem of the prior art that the connection between the pipe body of the flexible pipe and the pipe joint is not tight and firm.

In order to solve the technical problem, the utility model discloses an explosion-proof flexible pipe, include: a pipe body; the pipe joints are arranged at two ends of the pipe body; a nut arranged on the pipe joint; the tube body is provided with an explosion-proof layer and a coating layer; a first annular groove and a second annular groove are formed in one end part of the pipe joint, and a protective pipe sleeve is welded on the edge of the end part; the end part of the explosion-proof layer is fixedly welded in the first annular groove, the inner side of the end part of the coating layer is provided with a positioning ring, and the end part of the coating layer and the positioning ring are fixedly welded in the second annular groove.

Further, the explosion-proof layer is a metal corrugated pipe.

Further, the coating layer is a metal wire braided tube.

Compared with the prior art, the application can obtain the following technical effects:

the utility model discloses a set up the ring channel at the coupling terminal surface, weave the pipe with corrugated metal pipe and wire and insert the welding in the ring channel, can improve corrugated metal pipe's leakproofness and tensile antitorque performance, the protective pipe cover of coupling one end more can play the function that protective welding department received the rainwater erosion.

Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view, partially in section, of an explosion proof flexible pipe in accordance with an embodiment of the present invention;

fig. 2 is an enlarged schematic view at a in fig. 1.

Reference symbols of the drawings

The pipe joint comprises a pipe joint 1, a screw cap 2, a metal corrugated pipe 3, a metal wire braided pipe 4, a first annular groove 5, a second annular groove 6, a protective pipe sleeve 7 and a positioning ring 8.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1 and 2, fig. 1 is a schematic partial sectional view of an explosion-proof flexible pipe according to an embodiment of the present invention; fig. 2 is an enlarged schematic view at a in fig. 1. An explosion proof flexible pipe comprising: a pipe body; the pipe joints 1 are arranged at two ends of the pipe body; a nut 2 provided to the pipe joint 1; the tube body is provided with an explosion-proof layer and a coating layer; a first annular groove 5 and a second annular groove 6 are arranged at one end part of the pipe joint 1, and a protective pipe sleeve 7 is welded at the edge of the end part; the tip of explosion-proof layer sets up welded fastening in first ring channel 5, and coating tip inboard is equipped with holding ring 8, and coating tip and holding ring 8 set up welded fastening in second ring channel 6. The explosion-proof layer is a metal corrugated pipe 3; the coating layer is a metal wire braided tube 4.

The metal corrugated pipe 3 has explosion-proof performance, the metal corrugated pipe 3 is arranged in the first annular groove 5 and is welded and fixed, the connection is firmer, and the sealing performance is enhanced; the metal wire braided tube 3 is a hose, the metal wire at the end part is difficult to be regularly welded on the pipe joint 1, the end part of the metal wire braided tube 3 is fixed in the positioning ring 8, and then the positioning ring 8 is arranged in the second annular groove 6 for welding and fixing; the protective pipe sleeve 7 is welded with the edge of the pipe joint 1 after the metal corrugated pipe 3 and the metal wire braided pipe 4 are welded with the pipe joint 1, and the welded part can be well protected.

The utility model discloses a set up the ring channel at 1 terminal surface of coupling, weave pipe 4 with corrugated metal pipe 3 and wire and insert the welding in the ring channel, can improve corrugated metal pipe 3's leakproofness and tensile antitorque property, the protective tube cover 7 of 1 one end of coupling more can play the function that the protection welding department received the rainwater erosion.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (3)

1. An explosion proof flexible pipe comprising: a pipe body;

the pipe joints are arranged at two ends of the pipe body;

the nut is arranged on the pipe joint;

the method is characterized in that: the tube body is provided with an explosion-proof layer and a coating layer; a first annular groove and a second annular groove are formed in one end part of the pipe joint, and a protective pipe sleeve is welded on the edge of the end part; the tip on explosion-proof layer set up in welded fastening in the first ring channel, coating tip inboard is equipped with the holding ring, just coating tip and holding ring set up in welded fastening in the second ring channel.

2. An explosion proof flexible pipe as set forth in claim 1, wherein: the explosion-proof layer is a metal corrugated pipe.

3. An explosion proof flexible pipe as set forth in claim 1, wherein: the coating layer is a metal wire braided tube.

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