CN2487137Y

CN2487137Y - Anti-explosion cable seal joint

Info

Publication number: CN2487137Y
Application number: CN 01237594
Authority: CN
Inventors: 龚玉炜; 尹宇
Original assignee: STATE-RUN QIDONG ANTI-EXPLOSION ELECTRIC APPLIANCE INSTRUMENT FACTORY
Current assignee: STATE-RUN QIDONG ANTI-EXPLOSION ELECTRIC APPLIANCE INSTRUMENT FACTORY
Priority date: 2001-04-24
Filing date: 2001-04-24
Publication date: 2002-04-17
Anticipated expiration: 2011-04-24

Abstract

An explosion-proof cable sealing connector used in clamping and fixing a steel wire braided belt or a belt-shaped armored cable comprises a nut, a sealing gasket, a connector body, a gasket, a armored layer of a cable, a middle sleeve, an outer connector, a bush, and a obstruction agent. The nut and the connector body are in screwed connection, and the sealing gasket is arranged between the nut and the connector body; and the outer connector and the connector body are in screwed connection, and the bush is arranged inside the outer connector. The middle sleeve, the armored layer of the cable, and the gasket are arranged between the outer connector and the connector, and the obstruction agent is embedded between the bush and the inner core of the cable. The utility model has the advantages of double clamping, reliable connection; good fireproof, smoke-proof, dust-proof and explosion-proof performance.

Description

The anti-explosion cable seal nipple

The utility model must to cable core partly inside and outside flame proof and the housing air seal place use, be used for clamping and fixing various types of Seal of Cables joints.

The method of at present used anti-explosion cable seal nipple clamping cables, be for once with adorning rubber seal between hex nut and hex union body, tighten by hex nut and hex union body and to make rubber gasket distortion clamping cables, though this method meets requirement of explosion proof, its weak point is that clamping force is big inadequately, reliability is not high enough, is subjected to the influence of external pull easily and the connecting of loose cables and equipment, thereby has reduced explosion-proof reliability.

The purpose of this utility model is to overcome present anti-explosion cable seal nipple to have only the weak point of a place with the rubber gasket clamping, the anti-explosion cable seal nipple of provide a kind of two place's clamping cables, also with blocking agent the space caulked between cable inner core and seal nipple being lived.

The purpose of this utility model is achieved through the following technical solutions.The anti-explosion cable seal nipple is made up of nut, seal washer, fittings body, packing ring, cable sheath, intermediate sleeve, coupling, lining and blocking agent, nut and fittings body link with screw thread, seal washer is contained between nut and the fittings body, link with screw thread between coupling and fittings body, lining is contained in the coupling, intermediate sleeve is housed between coupling and fittings body successively, and cable sheath and packing ring, blocking agent are inlaid in the space between lining and cable inner core.Packing ring is that the garden is that the garden cylindricality of cone is simplified in one, and there is an inner cone at the middle part of coupling, and lining is a reduced pipe, its middle part have one with coupling in the middle part of the identical cone of inner cone tapering; The Lower Half of intermediate sleeve have one with packing ring in the identical Outer Taper of garden tapering, the first half has and the big end internal diameter of lining garden shell of column movingly, and a garden cylindricality step is arranged between Outer Taper and garden shell of column.

The utility model is compared with at present used anti-explosion cable seal nipple, have dual clamping, the advantage of one deck blocking agent, system earth function makes the explosion-proof performance of the device interior that connects with it good, the unfailing performance height that connects, thus back-fire relief, resistance cigarette, resistance dirt function had.

Accompanying drawing 1 is a structural representation of the present utility model.

The utility model is described in further detail below in conjunction with accompanying drawing, in the accompanying drawing: the 1-cable; The 2-hex nut; The 3-seal washer; 4-hex union body; The 5-cable sheath; The 6-packing ring; The 7-intermediate sleeve; The 8-blocking agent; The 9-coupling; The 10-lining; 11-cable inner core.In force, cable 1 (containing cable inner core 11) is an outsourcing piece, and blocking agent 8 usefulness clay are for well, and seal washer should be used rubber, and for well, all the other all use copper fitting for well to cable sheath with banded metal strip.The utility model is at first peeled off one section to the plastic foreskin (being cable cover(ing)) of cable outside when mounted, allows its cable inner core 11 expose, and its protruded length is advisable with enough wiring length.Secondly expose root at the cable inner core and peel off plastic outer layer about 20 centimeters again, allow it expose (in the cable cover(ing)) braided steel wire band.Then hex nut 2, seal washer 3, hex union body 4, cable sheath 5, packing ring 6, intermediate sleeve 7, cable setting-in layer 8, coupling 9 and lining 10 are put on cable successively, earlier coupling 9 and hex union body 4 are connected, cable sheath 5 is closely contacted with braided steel wire band in the cable, again hex nut 2 is connected with hex union body 4, must tighten

hex nut

2 and 4 of hex union bodies during connection, make the seal washer 3 distortion clamping cables 1 that are contained in the middle of these two parts, at last with in the space of wooden stick with 11 of clay (blocking agent 8) inlay busher 10 and cable inner cores.Again the anti-explosion cable seal nipple that installs cable is screwed on the housing that needs air seal inside and outside the housing, must adds rubber gasket when stubborn.Because of cable sheath 5 closely contacts with braided steel wire band in the cable, and housing is a ground connection, and institute is so that equipment and equipment room obtain earth-continuity by cable sheath.

Claims

1. anti-explosion cable seal nipple of forming by nut, seal washer, fittings body, nut and fittings body link with screw thread, seal washer is contained between nut and the fittings body, it is characterized in that it also comprises packing ring, cable sheath, intermediate sleeve, coupling, lining and blocking agent; Link with screw thread between coupling and fittings body, lining is contained in the coupling, and intermediate sleeve is housed between coupling and fittings body successively, and cable sheath and packing ring, blocking agent are inlaid in the space between lining and cable inner core.

2. by the described anti-explosion cable seal nipple of claim 1, it is characterized in that packing ring is that the garden is the cylindrical tube of cone in one; There is an inner cone at the middle part of coupling; Lining is a reduced pipe, its middle part have one with coupling in the middle part of the identical cone of inner cone tapering; The Lower Half of intermediate sleeve have one with packing ring in the identical Outer Taper of garden tapering, the first half has the cylindrical section that is slidingly matched with the big end internal diameter of lining, and a garden cylindricality step is arranged between Outer Taper and garden shell of column.