CN210053159U

CN210053159U - Explosion-proof cable lead-in device

Info

Publication number: CN210053159U
Application number: CN201920763990.2U
Authority: CN
Inventors: 郑加明; 王小云; 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: 2019-05-26
Filing date: 2019-05-26
Publication date: 2020-02-11
Anticipated expiration: 2029-05-26

Abstract

The utility model relates to the technical field of cable leading-in devices, in particular to an explosion-proof cable leading-in device, which solves the defect that the explosion-proof cable leading-in device in the prior art can not prevent water, and comprises a lock nut, a transition cavity and a guide cavity, wherein one end of the lock nut is provided with an internal thread, the other end is provided with an external thread, the transition cavity is sleeved in the lock nut, one end of the guide cavity is provided with an external thread, the end of the guide cavity provided with the external thread is in threaded connection with the end of the lock nut provided with the internal thread, a fixed cavity is arranged in the guide cavity, a limit block is arranged on the guide cavity, the end of the lock nut provided with the external thread is in threaded connection with a fixed screw cap, a first fixture block on the lock nut presses a second fixture block to enable the transition cavity to move and lock and, the rubber ring can play a role in fixing and preventing water.

Description

Explosion-proof cable lead-in device

Technical Field

The utility model relates to a cable entry technical field especially relates to an explosion-proof cable entry.

Background

In the petrochemical industry of national economic prop industry, production fields mostly belong to explosive dangerous places, electrical equipment uses explosion-proof equipment, an explosion-proof cable lead-in device is a component of the explosion-proof equipment for cable inlet and outlet, whether the cable lead-in device is reliable or not is directly related to the explosion-proof safety of the explosion-proof equipment, most of the existing mine explosion-proof electrical equipment adopts a pressing disc type cable lead-in device in a cable lead-in mode, a pressing force of a pressing disc is adjusted by a screw to press a sealing ring to seal a cable, and the method has a relatively complex structure and cannot prevent water.

Disclosure of Invention

The utility model aims at solving the shortcoming that the explosion-proof cable introducing device existing in the prior art can not prevent water, and providing an explosion-proof cable introducing 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 lock nut, transition cavity and guide cavity, lock nut's one end is equipped with the internal thread, and the other end is equipped with the external screw thread, transition cavity cover is established in the lock nut, guide cavity's one end is equipped with the external screw thread, and the one end that guide cavity was equipped with the external screw thread is equipped with internal screw thread one end threaded connection with lock nut, be equipped with fixed chamber in the guide cavity, be equipped with the stopper on the guide cavity, lock nut is equipped with the fixed cap that revolves of one end threaded connection of external screw thread, lock nut's top is equipped with.

Preferably, the fixed cavity is sequentially sleeved with a rotation stopping gasket, a pressing ring and a bayonet gasket.

Preferably, the rotation stopping gasket and the bayonet gasket are respectively arranged on two sides of the pressing ring, and the rotation stopping gasket is tightly attached to one end of the transition cavity.

Preferably, the inner wall of the lock nut is provided with a first fixture block, and the outer wall of the transition cavity is provided with a second fixture block.

Preferably, the first fixture block is matched with the second fixture block.

Preferably, one end of the fixed screw cap is adhered with a rubber ring.

Compared with the prior art, the beneficial effects of the utility model are that:

the first clamping block on the locking nut presses the second clamping block to enable the transition cavity to move, lock and fix the cable, the rotation stopping gasket and the pressing ring can be bent and protected, the bayonet washer can play a role in preventing the cable from falling off, and the rubber ring can play a role in fixing and preventing water.

Drawings

Fig. 1 is a schematic sectional view of an explosion-proof cable lead-in device according to the present invention;

fig. 2 is a schematic view of a front view structure of an explosion-proof cable introducing device according to the present invention.

In the figure: the clamping device comprises a locking nut 1, a transition cavity 2, a guide cavity 3, a fixing cavity 31, a limiting block 4, a rotation stopping washer 5, a pressing ring 6, a bayonet washer 7, a fixing rotating cap 8, a rubber ring 9, an opening 10, a first clamping block 11 and a second clamping block 12.

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. 1-2, an explosion-proof cable introducing device, including lock nut 1, transition cavity 2 and guide cavity 3, lock nut's one end is equipped with the internal thread, the other end is equipped with the external screw thread, 2 covers of transition cavity are established in lock nut 1, guide cavity 3's one end is equipped with the external screw thread, and guide cavity 3 is equipped with the one end threaded connection of external screw thread and lock nut 1, be equipped with fixed chamber 31 in the guide cavity 3, be equipped with stopper 4 on the guide cavity 3, lock nut 1 is equipped with the one end threaded connection of external screw thread and fixes cap 8 soon, lock nut 1's top is equipped with opening 10, the one end of fixed cap 8 that revolves is stained with rubber ring 9, the cable passes rubber ring 9, rubber ring 9 can play fixed and waterproof effect.

Wherein, the cover is equipped with in proper order in the fixed chamber 31 and ends spiral washer 5, clamping ring 6 and bayonet socket packing ring 7, ends spiral washer 5 and bayonet socket packing ring 7 and sets up respectively in the both sides of clamping ring 6, and ends spiral washer 5 and hug closely with the one end of transition cavity 2, is equipped with first fixture block 11 on lock nut 1's the inner wall, is equipped with second fixture block 12 on the outer wall of transition cavity 2, first fixture block 11 and second fixture block 12 phase-match.

Example (b): unscrewing lock nut 1, penetrate the cable from rubber ring 9, penetrate transition cavity 2 again, behind fixed chamber 31, wear out from guide cavity 3, twist lock nut 1 again, first fixture block 11 on the lock nut 1 presses second fixture block 12 and makes transition cavity 2 remove the locking and fix the cable, stop the effect that spiral shell ring 5 and clamping ring 6 can buckle the protection, bayonet socket packing ring 7 can play the effect that prevents that the cable from droing, rubber ring 9 can play fixed and waterproof effect.

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 lock nut (1), transition cavity (2) and guide cavity (3), its characterized in that, lock nut's one end is equipped with the internal thread, and the other end is equipped with the external screw thread, transition cavity (2) cover is established in lock nut (1), the one end of guide cavity (3) is equipped with the external screw thread, and guides cavity (3) and be equipped with the one end threaded connection of internal screw thread with lock nut (1), be equipped with fixed chamber (31) in guide cavity (3), be equipped with stopper (4) on guide cavity (3), the one end threaded connection that lock nut (1) was equipped with the external screw thread has fixed cap (8) of revolving, the top of lock nut (1) is equipped with opening (10).

2. An explosion-proof cable lead-in device according to claim 1, characterized in that a rotation-stopping gasket (5), a press ring (6) and a bayonet gasket (7) are sequentially sleeved in the fixing cavity (31).

3. An explosion-proof cable leading-in device according to claim 2, characterized in that the rotation-stopping gasket (5) and the bayonet gasket (7) are respectively arranged at two sides of the press ring (6), and the rotation-stopping gasket (5) is tightly attached to one end of the transition cavity (2).

4. An explosion-proof cable lead-in device according to claim 1, characterized in that the lock nut (1) is provided with a first block (11) on the inner wall and a second block (12) on the outer wall of the transition cavity (2).

5. An explosion proof cable lead in device according to claim 4, wherein the first latch (11) is matched with the second latch (12).

6. An explosion-proof cable lead-in device according to claim 1, characterized in that a rubber ring (9) is glued to one end of the fixing screw cap (8).