CN201029135Y

CN201029135Y - Explosion-proof electric connector

Info

Publication number: CN201029135Y
Application number: CNU2007200123628U
Authority: CN
Inventors: 李贵阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-29
Filing date: 2007-05-29
Publication date: 2008-02-27
Anticipated expiration: 2017-05-29

Abstract

The utility model relates to an explosion prevention electric connector, which solves the problem that: in the socket and plug of the existed product, the contact pin adopts the spine structure, and adopting the spine structure, when the socket is connected with the plug, the plug is uneasy to be retreated from the socket, so the existed product basically belongs to the one-off product. The important point of the utility model is that: the utility model comprises the plug and the socket, and the plug is provided with a plurality of pins, and the shell is screwed on the plug shell, and the inside of the insulation piece of the plug is provided with an insulation positioning cushion, and the pin seat is fixedly positioned on the insulation positioning cushion. The pin seat is provided with two positioning blocks clamped on two sides of the insulation positioning cushion for positioning of the pins. The socket shell is inserted to the plug shell, and the lock nut and the plug shell adopt the square screw with double heads for cooperation, and connecting the socket and the plug. The utility model is used for the dangerous occasions with poor environment like the drill platform, oil tanker and port.

Description

Explosion-proof electric connector

Technical field

The utility model relates to a kind of electric connector, and it comprises plug and socket specifically.

Background technology

Explosion-proof electrical connection device is mainly used in the abominable hazardous area ambient gas environment of environment such as drilling platforms, oil tanker, harbour and contains, may produce, gathers explosive gas mixture, explosive gas mixture is II class A, B, C level T1～T4 group, below rated frequency 500Hz, alternating voltage 660V, direct voltage 400V, in the following circuit of rated current 500A as circuit connect, fixed line is introduced, the usefulness of interim power supply when signal line conversion and power maintenance.Explosion-proof electrical connection device should possess convenient disassembly, just strong with maintenance, protective capacities.

In the socket of existing product, the plug, contact pin adopts the quil structure.Contact pin does not insert when dispatching from the factory in socket or the plug insulating part, and the user after contact pin and cable crimping, inserts after purchase voluntarily.Might be when Product transport, user's line ball with a certain quil structural change of contact pin, or the user when multicore contact pin is inserted insulating part indivedual contact pins not in place, cause assembling back unbalance stress behind plug insertion socket, do not have the good contact pin of crimping can stressed returning, cause contact pin to virtually connect or do not connect phenomenon.Secondly, owing to adopt the quil structure, socket plug can't be withdrawed from from socket, so it belongs to disposable products substantially with after plug is connected.

Summary of the invention

At the deficiencies in the prior art, the purpose of this utility model is to provide a kind of explosion-proof electric connector that can avoid above-mentioned deficiency

The purpose of this utility model is achieved in that it comprises plug and socket, several contact pins are arranged on the plug, it is characterized in that: shell is screwed on the plug casing by screw thread, in the insulating part of plug, establish insulation location rubber cushion, the contact pin root is fixed on the rubber cushion of insulation location, the contact pin root is provided with two locating pieces, is stuck in the both sides of insulation location rubber cushion, is the contact pin location.When withdrawing from contact pin, at first plug body is backed out from plug casing, again insulating part and insulation location rubber cushion are withdrawed from, just contact pin can be withdrawed from.

The utility model is compared with the prior art scheme, and the advantage that has is: can easily contact pin be withdrawed from.

Description of drawings

Further specify the utility model below in conjunction with accompanying drawing.

Accompanying drawing is a structural representation of the present utility model.

Embodiment

It comprises plug and socket 16, and several contact pins 11 are arranged on the plug, it is characterized in that:

Jack housing 1 is screwed on the Socket casing 4 by screw thread, plug body 8 is screwed on the plug casing 7 by screw thread, insulating part at plug is established insulation location rubber cushion 12 for 10 li, the contact pin root is fixed on the rubber cushion of insulation location, contact pin 11 roots are provided with two locating pieces 13, be stuck in the both sides of insulation location rubber cushion, be the contact pin location.When withdrawing from contact pin, at first plug body is backed out from plug casing, insulating part and insulation location rubber cushion are withdrawed from again, just contact pin can be withdrawed from, insulation location rubber cushion also produces alleviation power, the frictional force that is produced when suitably disperseing plug insertion socket simultaneously.The user who is unfamiliar with product can not operate miss, can not produce to virtually connect or do not connect phenomenon;

Socket casing 4 inserts 6 li of plug casings, and locking nut 5 and plug casing adopt bull such as double end rectangular thread to cooperate, and socket and plug are cooperated closely, prevent that in high vibration socket and plug from coming off;

Establish

packing ring

9 and 3 at the sealing ring 7 of plug and socket and 2 inboard.It mainly acts on is to make sealing ring location, and then makes when jack housing is screwed in Socket casing and insulating part is located isolated effectively enclosure and external relation;

Establish at the front end of socket, with the plug contact position and to be connected ripple spring 15, establish ripple spring 14 in the shell at the plug casing inner chamber.After connecting ripple spring assurance plug insertion socket, occupy tolerance clearance, guarantee that socket fully is connected with plug, after locking nut is fastening, produce resilience force after connecting ripple spring pressurized, withstand socket and plug, do not produce the loosening phenomenon in gap, ripple spring 14 principles make plug-assembly, jack assemblies not produce the virtual connection phenomenon with connecting the ripple spring in the shell.

Claims

1. explosion-proof electric connector, it comprises plug and socket, several contact pins are arranged on the plug, it is characterized in that: shell is screwed on the plug casing by screw thread, in the insulating part of plug, establish insulation location rubber cushion, the contact pin root is fixed on the rubber cushion of insulation location, and the contact pin root is provided with two locating pieces, is stuck in the both sides of insulation location rubber cushion.

2. according to the described explosion-proof electric connector of claim 1, it is characterized in that: packing ring is established in the inboard at sealing ring, establishes at the front end of socket, with the plug contact position to be connected the ripple spring, establishes ripple spring in the shell at the plug casing inner chamber.

3. according to claim 1 or 2 described explosion-proof electric connectors, it is characterized in that: Socket casing inserts in the plug casing, and locking nut and plug casing adopt the bull rectangular thread to cooperate, and socket is connected with plug.