CN202957395U

CN202957395U - Industrial plug socket and coupler sealing device

Info

Publication number: CN202957395U
Application number: CN 201220157262
Authority: CN
Inventors: 陈杰荣; 陈凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-10
Filing date: 2012-04-10
Publication date: 2013-05-29
Anticipated expiration: 2022-04-10

Abstract

The utility model discloses an industrial plug socket and coupler sealing device, and the target is to provide a plug socket and coupler sealing device which is simple in structure and is reliable in operation. The safety hidden troubles of plug socket and coupler in use caused by the poor sealing performance of a cable connection chamber are fundamentally eliminated. The industrial plug socket and coupler sealing device includes a pressing nut, a tightening clamp, a sealing ring and a sheath. The inner wall of the upper part of the pressing nut is tapered, and the middle of the pressing nut is provided with a line through hole. The lower part of the tightening clamp is a sealed circular ring, and the upper part is provided with contracting claws which are arranged into a tapered shape, and each contracting claw has a contraction structure. The upper end of the sealing ring is tapered, the top is flat and is closed, the middle is provided with a line through hole, the outside of the upper end is provided with a circular groove, and the lower part is provided with an outward step. The outside of the upper end of the sheath is provided with locking threads, and the inside is provided with a step.

Description

The sealing device of a kind of Plugs and Sockets for Industry and coupler

Technical field

The utility model relates to the sealing device of a kind of Plugs and Sockets for Industry and coupler, can be widely used on the electric accessories of the connection of the abominable industrial electric apparatus equipment such as indoor, outdoor of environment for use and power delivery.

Background technology

Cable sealing device is one of critical piece of electric accessories, and it makes connection cable be subject to seal protection after being connected on the annex conducting terminal, is not subjected to the impact of wringing stress simultaneously, is effectively protecting the work safety of electric accessories.The sealing effectiveness of the seal protecting device of traditional plug socket and coupler is not obvious, so job stability is not strong, degree of protection is low.

Summary of the invention

The utility model is mainly to solve the existing technical problem of above-mentioned prior art, a kind of simple in structure, Plugs and Sockets for Industry of reliable operation and the sealing device of coupler are provided, have fundamentally eliminated plugs and sockets and coupler because of the not good enough potential safety hazard that in use produces of sealing of cable connection chamber.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:

The sealing device of a kind of Plugs and Sockets for Industry and coupler, it comprises clamping nut, firmly grasps folder, sealing ring and sheath, and it is characterized in that: the clamping nut upper inside wall is taper, and the centre is entrance hole; The described bottom that promptly presss from both sides is closed circle, and top surrounds taper by the contraction pawl with contraction structure; Described sealing ring upper end is tapered, and the top is the planar surface encloses shape, and there is entrance hole the centre, and the outside, upper end is provided with annular groove, and the bottom is provided with the step that turns up; The outside, described sheath upper end is provided with locking screw, and the inboard is provided with step.

As preferably, the upper inside wall of described contraction pawl has bottom teeth, top teeth, and the bottom teeth are in when clamping cables in the annular groove of sealing ring upper end, and the teeth on top snap in the outer wall of cable when clamping cables.

As preferably, the diameter of described sealing ring top entrance hole is less than the installing cables diameter of electric accessories.

As preferably, described clamping nut top entrance hole diameter greater than shrink diameter after shrink on the pawl top, less than the diameter that shrinks the pawl bottom.

As preferably, the external screw thread of the internal thread of described clamping nut and sheath upper end matches, two faces of clamping nut top inwall taper match with the promptly conical surface of folder and the conical surface of sealing ring, and the interior step that promptly presss from both sides turn up step and the sheath of the annulus of bottom and sealing ring lower potion matches.

The sealing device beneficial effect of a kind of Plugs and Sockets for Industry described in the utility model and coupler is mainly manifested in: during wiring, cable successively by clamping nut, promptly folder, sealing ring, enter the annex interstar connection room, after carefully connecting the wire, screw in clamping nut, under the suppressing action at clamping nut conical surface top, promptly folder and sealing ring progressively tighten up vertically, are pressed into the cable outer wall until shrink one group of teeth of pawl inner top side, make cable can not rub in electric accessories, slide; Simultaneously; in the indent annulus of following one group of teeth indentation sealing circle outer; make sealing ring clamp sealing along the cable outer wall; the aperture on sealing ring top is less than the minimum diameter of electric accessories installing cables in addition; therefore under the effect of its elastomeric material with cable outer wall banding; like this; connection cable is under multi-layer sealed protection; good dustproof, waterproof, anti-skidding seal protection effect have been played in the cable connection chamber, guaranteed that effectively plugs and sockets and coupler working stability in abominable environment for use is reliable.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2, Fig. 3, Fig. 4, Fig. 5 are part parts decomposing schematic representation of the present utility model.

Embodiment:

Below by embodiment, and by reference to the accompanying drawings the technical solution of the utility model is described in further detail.

as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5: the sealing device of a kind of Plugs and Sockets for Industry of the utility model and coupler, comprise clamping nut 1, promptly press from both sides 2, sealing ring 3, sheath 4, described 2 tops that promptly press from both sides are comprised of several contraction pawls 21, shrink shrinkable taper seat of the common formation of pawl, and the bottom is ring bodies 22, shrinks inboard, pawl upper end and is provided with bottom teeth 211, top teeth 212, the step of turning up 31 is arranged at described sealing ring 3 bottoms, and there is indent annulus 32 in the outside, upper end, and there is entrance hole 33 on the top, during wiring, cable passes clamping nut 1 successively, promptly press from both sides 2, sealing ring 3, sheath 4 enters plugs and sockets and coupler interstar connection room, after carefully connecting the wire, sealing ring step 31 is enclosed within on the step 41 of sheath, promptly pawl ring bodies 22 is enclosed within on the step 31 of sealing ring, clamping nut 1 is enclosed within and promptly presss from both sides on 2, internal thread 60 with clamping nut is enclosed within on the external screw thread 42 of sheath again, the afterburning screw-in, at this moment, under the suppressing action of clamping nut addendum cone face 11, tapered structure promptly press from both sides 2 and sealing ring 3 axially progressively tighten up along cable, be pressed into the cable outer wall until shrink pawl 2 inside upper part teeth 212, make cable not rub in electric accessories, slide, simultaneously, in indent annulus 32 outside bottom teeth 211 indentation sealing circles, encase the cable outer wall and clamp sealing, promptly press from both sides the outer step 31 of the downward press seal circle of lower end ring bodies 22, outer step 31 compresses again step 41 in sheath, the aperture 33 on sealing ring top is less than cable size in addition, under the effect of its elastomeric material, the cable outer wall is packed tightly, like this, interstar connection room is at the outer step 31 of sealing ring, indent annulus 32, under the effect of the multilayer obturators such as top entrance hole 33, to dust, rainwater etc. have played tight buffer action, improved the degree of protection of plugs and sockets and coupler, simultaneously, the teeth of shrinking pawl are pressed into the cable outer wall, make cable can not rub in plugs and sockets and coupler, slide.Such structure can make plugs and sockets and coupler working stability in abominable environment for use reliable.

The purpose of this utility model, feature and advantage are further described with reference to accompanying drawing in connection with embodiment.To help to understand the utility model by embodiment, but not limit content of the present utility model.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection range of the present utility model.

Claims

1. the sealing device of a Plugs and Sockets for Industry and coupler, it comprises clamping nut (1), firmly grasps folder (2), sealing ring (3) and sheath (4), it is characterized in that: the clamping nut upper inside wall is taper (11), and the centre is entrance hole; Promptly pressing from both sides the bottom is closed circle (22), and top surrounds taper by the contraction pawl (21) with contraction structure; The sealing ring upper end is tapered, and the top is the planar surface encloses shape, and there is entrance hole (33) centre, and the outside, upper end is provided with annular groove (32), and the bottom is provided with the step that turns up (31); The outside, sheath upper end is provided with locking screw (42), and the inboard is provided with step (41).

2. the sealing device of a kind of Plugs and Sockets for Industry according to claim 1 and coupler, the upper inside wall that it is characterized in that described contraction pawl (21) has bottom teeth (211), top teeth (212), bottom teeth (211) are in when clamping cables in the annular groove (32) of sealing ring upper end, and the teeth on top (212) snap in the outer wall of cable when clamping cables.

3. the sealing device of a kind of Plugs and Sockets for Industry according to claim 1 and 2 and coupler, is characterized in that the diameter of sealing ring (3) top entrance hole (33) is less than the diameter of the installing cables of electric accessories.

4. the sealing device of a kind of Plugs and Sockets for Industry according to claim 3 and coupler, it is characterized in that described clamping nut top entrance hole diameter greater than shrink diameter after shrink on pawl (21) top, less than the diameter that shrinks pawl (21) bottom.

5. the sealing device of a kind of Plugs and Sockets for Industry according to claim 4 and coupler, the internal thread (60) that it is characterized in that clamping nut (1) matches with the external screw thread (42) of sheath upper end, two faces of clamping nut (1) top inwall taper (11) match with the promptly conical surface of folder (2) and the conical surface of sealing ring (3), and the annulus (22) that promptly presss from both sides the bottom matches with the step that turns up (31) of sealing ring (3) bottom and the interior step (41) of sheath (4).