CN214706986U

CN214706986U - Explosion-proof flexible connecting pipe

Info

Publication number: CN214706986U
Application number: CN202121253000.4U
Authority: CN
Inventors: 王彦红
Original assignee: Zhejiang Jiunuo Power Technology Co ltd
Current assignee: Zhejiang Jiunuo Power Technology Co ltd
Priority date: 2021-06-05
Filing date: 2021-06-05
Publication date: 2021-11-12
Anticipated expiration: 2031-06-05

Abstract

The utility model relates to an explosion-proof flexible connection pipe, include the pipeline body, establish the interface at pipeline body both ends, the cover is equipped with the lag on the pipeline body, be close to the locking device that the interface all is equipped with and is used for fixed lag both ends on the both ends of pipeline body, two the locking device symmetry sets up, locking device includes base ring and locking ring, the fixed cover of base ring is established on the outer wall of pipeline body, be equipped with the external screw thread on the outer wall of base ring, be equipped with the internal thread corresponding with the external screw thread on the inner wall of locking ring, one of base ring near pipeline body middle part is served and is equipped with the one end male spread groove that supplies the lag, the base ring is close to one of pipeline body middle part and serves and is equipped with the outer inclined plane of toper. The utility model has the advantages that: effectively install the lag, the dismouting is all very light, makes the change convenience more to the lag, connects stably, is difficult for droing, the effectual life that has prolonged.

Description

Explosion-proof flexible connecting pipe

Technical Field

The utility model relates to an explosion-proof equipment technical field, in particular to explosion-proof flexible connection pipe.

Background

The explosion-proof flexible connecting pipe is suitable for 20 areas, 21 areas and 22 areas in a combustible dust environment and IIB IIC grade T1-T6 groups of explosive mixture places, and is used for connecting the inlet and outlet wires of explosion-proof electrical equipment or connecting places with high difficulty in bending steel pipe wiring. The two ends of the hose of the explosion-proof flexible pipe structure are provided with metal thread movable joints, and the hose body part consists of three forms of a metal hose, an outer layer cloth-sandwiched high-quality rubber, a reinforced nylon hose sheath and an interlayer steel wire woven net pipe.

The protection sleeve is generally arranged on a pipeline body of the existing explosion-proof flexible connecting pipe and used for protecting the pipeline body and preventing the pipeline body from being scratched, hooked, punctured and the like, but the protection sleeve is fixedly connected with the pipeline body and connectors at two ends and cannot be detached, when the protection sleeve is damaged, the whole explosion-proof flexible connecting pipe can only be replaced, unnecessary waste is caused, and the service life is short.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide an explosion-proof flexible connection pipe to solve above-mentioned problem.

The technical scheme of the utility model is realized like this: the utility model provides an explosion-proof flexible connection pipe, includes the pipeline body, establishes the interface at pipeline body both ends, the cover is equipped with the lag on the pipeline body, it all is equipped with the locking device who is used for fixed lag both ends, two to be close to the interface on the both ends of pipeline body the locking device symmetry sets up, locking device includes base ring and locking ring, the fixed cover of base ring is established on the outer wall of pipeline body, be equipped with the external screw thread on the outer wall of base ring, be equipped with the internal thread corresponding with the external screw thread on the inner wall of locking ring, one of base ring near pipeline body middle part is served and is equipped with the one end male spread groove that supplies the lag, one of base ring near pipeline body middle part is served and is equipped with the outer inclined plane of toper, one of locking ring near pipeline body middle part is served and is equipped with the toper inner slope with toper outer inclined plane matched with.

Through adopting above-mentioned technical scheme, insert the spread groove with the one end of lag earlier in, screw locking ring and base ring thread again, along with the screw in of locking ring, the continuous extrusion that is close to of inclined plane in toper outer inclined plane and the toper, make the base ring offer the inside extrusion of one end on toper outer inclined plane, thereby press from both sides the tip clamp with the lag and fix in the spread groove, effectively install the lag, the light that the dismouting is all very, make the change convenience more to the lag, connect stably, be difficult for droing, the effectual life that has prolonged.

The utility model discloses further set up to: the utility model discloses a pipeline, including base ring, pipeline body, breach, the base ring is close to one of pipeline body middle part and is served and be equipped with the breach, the breach is along a plurality of settings of center pin annular of base ring, breach and spread groove intercommunication.

Through adopting above-mentioned technical scheme, the breach makes the base ring be equipped with the outer inclined plane of toper one end deformation light more, convenient, makes the extrusion to the lag fixed light more, stable all.

The utility model discloses further set up to: the larger one end of toper inner inclined plane internal diameter sets up towards the base ring.

Through adopting above-mentioned technical scheme, make the locking ring more convenient when being connected with the base ring cooperation, fixed light more to the extrusion of lag tip.

The utility model discloses further set up to: the protruding clamp ring that is equipped with on the one side inner wall that the pipeline body was kept away from to the spread groove, a plurality of settings of length direction equidistance of clamp ring along the spread groove.

Through adopting above-mentioned technical scheme, the clamp ring can effectual improvement lag and the spread groove between be connected stability, make the lag difficult for droing.

The utility model discloses further set up to: the section of the compression ring is semicircular.

Through adopting above-mentioned technical scheme, can effectually compress tightly the lag and fix in the spread groove, connect more stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a in the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model discloses an explosion-proof flexible connecting pipe, which comprises a pipe body 1 and interfaces 2 arranged at two ends of the pipe body 1, wherein a protective sleeve 3 is sleeved on the pipe body 1, locking devices for fixing two ends of the protective sleeve 3 are arranged at two ends of the pipe body 1 close to the interfaces 2, the two locking devices are symmetrically arranged, each locking device comprises a base ring 4 and a locking ring 5, the base ring 4 is fixedly sleeved on the outer wall of the pipe body 1, the outer wall of the base ring 4 is provided with external threads, the inner wall of the locking ring 5 is provided with internal threads corresponding to the external threads, one end of the base ring 4 close to the middle part of the pipe body 1 is provided with a connecting groove 6 for inserting one end of the protective sleeve 3, one end of the base ring 4 close to the middle part of the pipe body 1 is provided with a conical outer inclined surface 7, and one end of the locking ring 5 close to the middle part of the pipeline body 1 is provided with a conical inner inclined surface 8 matched with the conical outer inclined surface 7.

The embodiment of the utility model provides an in, one of base ring 4 near pipeline body 1 middle part serves and is equipped with breach 9, breach 9 is along a plurality of settings of the center pin annular of base ring 4, breach 9 and spread groove 6 intercommunication.

In the embodiment of the present invention, the end of the conical inner inclined plane 8 with a larger inner diameter is disposed toward the base ring 4.

The embodiment of the utility model provides an in, the protruding clamp ring 10 that is equipped with on one side inner wall that pipeline body 1 was kept away from to spread groove 6, a plurality of settings of length direction equidistance of clamp ring 10 along spread groove 6.

In the embodiment of the present invention, the cross section of the clamp ring 10 is semicircular.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof flexible connection pipe, includes pipeline body (1), establishes interface (2) on pipeline body (1) both ends, its characterized in that: the cover is equipped with lag (3) on pipeline body (1), be close to interface (2) on the both ends of pipeline body (1) and all be equipped with the locking device who is used for fixed lag (3) both ends, two the locking device symmetry sets up, locking device includes base ring (4) and locking ring (5), base ring (4) fixed cover is established on the outer wall of pipeline body (1), be equipped with the external screw thread on the outer wall of base ring (4), be equipped with the internal thread corresponding with the external screw thread on the inner wall of locking ring (5), one of base ring (4) near pipeline body (1) middle part is served and is equipped with one end male spread groove (6) that supply lag (3), one of base ring (4) near pipeline body (1) middle part is served and is equipped with toper outer inclined plane (7), one of locking ring (5) near pipeline body (1) middle part is served and is equipped with toper inner inclined plane (8) with toper outer inclined plane (7) matched with toper outer inclined plane (7) ).

2. An explosion proof flexible connection tube according to claim 1, wherein: one of base ring (4) near pipeline body (1) middle part is served and is equipped with breach (9), breach (9) are along a plurality of settings of the center pin annular of base ring (4), breach (9) and spread groove (6) intercommunication.

3. An explosion proof flexible connection tube according to claim 1, wherein: the larger one end of toper inner inclined plane (8) internal diameter sets up towards base ring (4).

4. An explosion proof flexible connection tube according to claim 1, wherein: the pipeline body (1) is kept away from in spread groove (6) one side inner wall on the protrusion be equipped with clamp ring (10), a plurality of settings of length direction equidistance along spread groove (6) are pressed ring (10).

5. An explosion proof flexible connection tube according to claim 4, wherein: the section of the compression ring (10) is semicircular.