CN212627093U

CN212627093U - Explosion-proof cable lead-in device

Info

Publication number: CN212627093U
Application number: CN202020760409.4U
Authority: CN
Inventors: 于志荣; 郑加明; 吴林华
Original assignee: Taizhou Deer Machinery And Electrical Made Co ltd
Current assignee: Taizhou Deer Machinery And Electrical Made Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2021-02-26
Anticipated expiration: 2030-05-11

Abstract

The utility model relates to an explosion-proof cable leading-in technical field, in particular to an explosion-proof cable leading-in device, which solves the defect that explosion flame inside the existing explosion-proof equipment is easy to spread out from a leading-in port, comprising an explosion-proof box shell, wherein the explosion-proof box shell is fixed with a cable leading-in lantern ring, the inner sleeve of the cable leading-in lantern ring is provided with a filling pipe, the outer side of one end of the cable leading-in lantern ring is also movably connected with a locking ring, one end of the filling pipe is provided with four filling branch pipes, the tail end of the filling branch pipe is provided with a limiting block, the cable is inserted in the filling pipe, the oblique tooth grooves which are evenly communicated with each other are impacted and absorbed, gas flame generated by explosion in the explosion-proof box is blocked when passing through the tooth grooves, but the gas flame can enter the next oblique tooth groove through a notch, and can be effectively, until the weakening is zero, and finally the explosion-proof function is achieved.

Description

Explosion-proof cable lead-in device

Technical Field

The utility model relates to an explosion-proof cable introduces technical field, especially relates to an explosion-proof cable introducing device.

Background

In the petrochemical industry of national economic prop industry, 60-80% of production sites belong to explosive dangerous places, electrical equipment uses explosion-proof equipment, an explosion-proof cable leading-in device is a part for leading a cable into and out of the explosion-proof equipment, and whether the cable leading-in device is reliable or not is directly related to the explosion-proof safety of the explosion-proof equipment.

In recent years, the security problem of the cable inlet of the explosion-proof equipment is found in security inspection of the explosion-proof equipment used in an explosion danger field by countries and various regulatory departments, and is one of the outstanding problems, which is mainly reflected in that a plurality of cables enter and exit the explosion-proof equipment, so that the inlet cannot be tightly sealed, once an explosion occurs in the explosion-proof equipment, flame is transmitted from the inlet, and explosive gas around the explosion-proof equipment is detonated, so that a security accident is caused.

Disclosure of Invention

The utility model aims at solving the defect that explosion flame is easy to spread out from an introduction port in the prior explosion-proof equipment, and providing an explosion-proof cable introduction device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an explosion-proof cable introducing device, includes explosion-proof box casing, explosion-proof box casing is fixed with the cable and introduces the lantern ring, the inside cover of the cable introduction lantern ring is equipped with the filling tube, and there is the locking ring still swing joint in the one end outside of the cable introduction lantern ring, the one end of filling tube is provided with four and fills and manages in charge, the end of filling in charge is provided with the stopper, and the inside interlude of filling tube has the cable.

Preferably, the explosion-proof box shell is fixed with a cable leading-in lantern ring through riveting.

Preferably, a groove is formed in the outer side of one end of the cable leading-in lantern ring, a bearing is clamped inside the groove, and the bearing is connected with the locking ring through the bearing.

Preferably, the outer surfaces of the filling pipe and the filling branch pipe are both provided with threads, and the inner wall of the locking ring is provided with thread grooves corresponding to the threads on the surfaces of the filling pipe and the filling branch pipe.

Preferably, the inner wall of the filling branch pipe is provided with a plurality of impact absorption tooth grooves.

The utility model has the advantages that:

1. the locking ring is rotated to drive the filling pipe with the surface provided with the thread through the thread groove and the filling branch pipe to realize transmission to one side inside the cable introducing lantern ring, so that the filling branch pipe is filled inside the cable introducing lantern ring, and the function of clamping and fixing the cable is achieved.

2. The oblique tooth's socket that the impact absorption tooth's socket evenly communicates each other, the gas flame that explosion produced in the explosion-proof box can receive the countercheck when passing through this tooth's socket, but gas flame can get into next oblique tooth's socket through the notch in, every oblique tooth's socket of process all can be impacted by effectual weakening, nevertheless the pouring of incomplete hindrance energy, until weakening for zero, finally reach explosion-proof function.

Drawings

Fig. 1 is a schematic structural view of an explosion-proof cable lead-in device provided by the present invention;

fig. 2 is a schematic structural diagram of a locking state of the explosion-proof cable lead-in device provided by the present invention;

fig. 3 is a partial sectional structural view at a in fig. 2.

In the figure: 1 explosion-proof box shell, 2 cable leading-in lantern rings, 3 locking rings, 4 filling pipes, 5 filling branch pipes, 6 limiting blocks, 7 cables, 8 impact absorption tooth grooves, 9 grooves and 10 bearings.

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.

Referring to fig. 1-3, an explosion-proof cable leading-in device comprises an explosion-proof box shell 1, wherein a cable leading-in lantern ring 2 is fixed on the explosion-proof box shell 1, a filling pipe 4 is sleeved inside the cable leading-in lantern ring 2, a locking ring 3 is movably connected to the outer side of one end of the cable leading-in lantern ring 2, four filling branch pipes 5 are arranged at one end of each filling pipe 4, a limiting block 6 is arranged at the tail end of each filling branch pipe 5, and a cable 7 is inserted into the filling pipe 4;

explosion-proof box casing 1 is through riveting fixed cable introduction lantern ring 2, and recess 9 has been seted up in the one end outside of cable introduction lantern ring 2, and the inside joint of recess 9 has bearing 10, and it connects locking ring 3 through bearing 10, and the surface of filling pipe 4 and filling branch pipe 5 all is equipped with the screw thread, and the thread groove that corresponds with filling pipe 4 and filling branch pipe 5 surface screw thread is seted up to the inner wall of locking ring 3, and a plurality of impact absorption tooth's socket 8 have been seted up to the inner wall of filling branch pipe 5.

In the embodiment, a cable leading-in lantern ring 2 is fixed at a leading-in opening of an explosion-proof box shell 1 through riveting, a filling pipe 4 is sleeved inside the explosion-proof box shell, four filling branch pipes 5 are connected to one end of the explosion-proof box shell, the tail end of the cable leading-in lantern ring 2 is connected with a locking ring 3 through a groove 9 bearing 10, the locking ring 3 is rotated to enable the locking ring 3 to drive the filling pipe 4 with threads on the surface through a thread groove and realize transmission from one side inside of the cable leading-in lantern ring 2, and therefore the filling branch pipe 5 is filled inside the cable leading-in lantern ring 2, and the function of clamping and fixing a.

Set up impact absorption tooth's socket 8 at the inner wall of filling the branch pipe 5, the oblique tooth's socket of 8 even mutual intercommunications in impact absorption tooth's socket, the gas flame that explosion-proof incasement produced can receive the blocking when passing through this tooth's socket, but in the gas flame can get into next oblique tooth's socket through the notch, every oblique tooth's socket of process all can be impacted by effectual weakening, nevertheless the pouring of incomplete hindrance energy, until weakening for zero, finally reach explosion-proof function.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof cable introducing device, includes explosion-proof case casing (1), its characterized in that, explosion-proof case casing (1) is fixed with cable introduction lantern ring (2), the inside cover of cable introduction lantern ring (2) is equipped with filling tube (4), and the one end outside of cable introduction lantern ring (2) is swing joint still has locking ring (3), the one end of filling tube (4) is provided with four and fills and divides pipe (5), the end of filling branch pipe (5) is provided with stopper (6), and the inside interlude of filling tube (4) has cable (7).

2. An explosion proof cable lead in device according to claim 1, wherein the explosion proof box housing (1) is fixed with a cable lead in collar (2) by riveting.

3. An explosion-proof cable leading-in device according to claim 1, characterized in that a groove (9) is formed on the outer side of one end of the cable leading-in lantern ring (2), a bearing (10) is clamped inside the groove (9), and the bearing (10) is connected with the locking ring (3).

4. An explosion-proof cable leading-in device according to claim 1, wherein the outer surfaces of the filling pipe (4) and the filling branch pipe (5) are provided with threads, and the inner wall of the locking ring (3) is provided with thread grooves corresponding to the threads on the surfaces of the filling pipe (4) and the filling branch pipe (5).

5. An explosion-proof cable lead-in device according to claim 1, characterized in that the inner wall of the filling branch pipe (5) is provided with a plurality of shock absorbing gullets (8).