CN201975597U

CN201975597U - Bipolar socket interlocking protection door

Info

Publication number: CN201975597U
Application number: CN2011200888768U
Authority: CN
Inventors: 田赡民
Original assignee: Ningbo Gongniu Electric Appliances Co Ltd
Current assignee: Ningbo Gongniu Electric Appliances Co Ltd
Priority date: 2011-03-30
Filing date: 2011-03-30
Publication date: 2011-09-14
Anticipated expiration: 2021-03-30

Abstract

The utility model discloses a bipolar socket interlocking protection door which is installed between jacks and plug bushes. The bipolar socket interlocking protection door comprises a first sliding block and a second sliding block which are mutually sheathed and can relatively slide, wherein the first sliding block is provided with a first wedge and a first door plank corresponding to the first jack; the second sliding block is provided with a second wedge and a second door plank corresponding to the second jack; the first door plank is positioned below the second wedge; the second door plank is positioned below the first wedge; and the rear end of the first sliding block and the rear end of the second sliding block are both provided with elastic components. In the protection door, the wedges and the door planks form a vertically-overlaid double-layer protection door structure which corresponds to each jack, and the protection door is closed by spring elasticity as usual. The protection door has a simple structure and mutual-locking function, a single pin can be effectively prevented from inserting, the protection door has stronger single pin inserting-proof ability, and thus product safety is greatly improved.

Description

Two pole socket interlock protection doors

Technical field

The utility model relates to the socket field, the particularly a kind of shutter that can realize interlocking that is applied to two pole sockets.

Background technology

In order to improve the fail safe that socket uses; avoid the contingency that is ignorant of getting an electric shock owing to misoperation or child; how below the receptacle sockets of the two poles of the earth, above the sleeve shutter is set; during work; two electrode plugs insert jack; shutter is opened, and engaged, finish normal electrical connection with the sleeve of its below.

Chinese patent literature CN2373908 discloses a kind of flip-up style socket protective door, and it adopts the flip-shell principle, the formation of the sleeve in it covering is stopped prevent to get an electric shock, but it can not prevent from fully that one pole from inserting the electric shock that causes.

Chinese patent literature CN2497446 discloses a kind of the two poles of the earth socket protective door assembly, and when one pole inserted, shutter made it can not contact sleeve; can prevent the electric shock of formation when one pole inserts; but its complex structure, reliability is low, and the requirement to the socket protective door among the GB GB2099.1-2008 has two:

(1), the probe of the 3 * 1mm probe that applies the thrust of 20N and φ 1mm applies all untouchable live part of thrust of 1N;

(2), the shutter that designs for anti-one pole insertion should be able to bear the single latch insertion force greater than 75N.Above-mentioned shutter structure still exists the excessive danger that causes electric shock of insertion force.

The utility model content

The purpose of this utility model provides a kind of two novel pole socket interlock protection doors, can form the two poles of the earth interlock protection, and has better anti-single pin insertion ability.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of two pole socket interlock protection doors are installed between jack and the sleeve, are made up of first slide block and second slide block that are linked in mutually together and can slide relative; Corresponding first jack of first slide block has first voussoir and first door-plate; Corresponding second jack of second slide block has second voussoir and second door-plate; Described first door-plate is positioned at second voussoir below, and described second door-plate is positioned at first voussoir below; Described first slide block and the second slide block rear end are equipped with elastomeric element.

Preferably, described elastomeric element is a spring.

Shutter described in the utility model, corresponding each jack constitutes the double shielding door of stacked on top of one another by voussoir and door-plate, by spring force shutter is closed at ordinary times; When single pin inserts, can rely on wedge surface to push voussoir open, open the upper strata shutter, the door-plate that is positioned at below it constitutes lower floor's shutter, is subjected to another jack lower wedge block control and does not open, and therefore single pin can not insert the socket power taking; When two latches inserted simultaneously, the levels shutter was opened simultaneously, can normally insert sleeve like a cork, finished normal electrical connection; When plug was transferred to, shutter resetted again and closes.This shutter is simple in structure, has interlock function, and when single pin inserted, the door-plate motion was subjected to another jack lower wedge block control and can not opens, and makes it to have stronger anti-single pin insertion ability.

Description of drawings

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

Fig. 1 is the front view that adopts two pole sockets of two pole socket interlock protection doors described in the utility model;

Fig. 2 is the cut-away view after socket shown in Figure 1 is removed panel;

Fig. 3 is the rearview of Fig. 2;

Fig. 4 is first slide block and the second slide block assembly structure figure;

Fig. 5 is the component diagram of first slide block;

Fig. 6 is the component diagram of second slide block;

Fig. 7 is first slide block and the second slide block operating principle schematic diagram.

Among the figure:

1, first slide block; 11, first voussoir; 12, first door-plate; 13, spring; 2, second slide block; 21, second voussoir; 22, second door-plate; 23, spring; 3, socket panel.

Embodiment

Shown in Fig. 1-6, provide the composition structural representation of two pole socket interlock protection doors described in the utility model, it is installed between the jack and sleeve of socket panel 3, is made up of first slide block 1 and second slide block 2 that are linked in mutually together and can slide relative; First slide block, 1 corresponding first jack has first voussoir 11 and first door-plate 12; Second slide block, 2 corresponding second jacks have second voussoir 21 and second door-plate 22; Wherein first door-plate 12 is positioned at second voussoir, 21 belows, and second door-plate 22 is positioned at first voussoir, 11 belows; For any slide block, when plug inserts, can rely on wedge surface to promote voussoir, thereby make whole slide block along moving perpendicular to direction of insertion, first slide block 1 and second slide block, 2 rear ends are respectively equipped with spring 13 and spring 23, can make slide block return to original position when plug is extracted.

With reference to Fig. 7, the action principle of this two pole sockets interlock protection door is as follows: corresponding each jack, constitute the double shielding door of stacked on top of one another by voussoir and door-plate, and by spring force shutter is closed at ordinary times; When single pin inserts, can rely on wedge surface to push voussoir open, open the upper strata shutter, the door-plate that is positioned at below it constitutes lower floor's shutter, is subjected to another jack lower wedge block control and does not open, and therefore single pin can not insert the socket power taking; When two latches inserted simultaneously, the levels shutter was opened simultaneously, can normally insert sleeve like a cork, finished normal electrical connection; When plug was transferred to, shutter resetted again and closes.

This shutter is simple in structure, has interlock function, and when single pin inserted, the door-plate motion was subjected to another jack lower wedge block control and can not opens, and makes it to have stronger anti-single pin insertion ability.

Claims

1. a pole socket interlock protection door is installed between jack and the sleeve, it is characterized in that: be made up of first slide block (1) and second slide block (2) that are linked in mutually together and can slide relative; Corresponding first jack of first slide block (1) has first voussoir (11) and first door-plate (12); Corresponding second jack of second slide block (2) has second voussoir (21) and second door-plate (22); Described first door-plate (12) is positioned at second voussoir (21) below, and described second door-plate (22) is positioned at first voussoir (11) below; Described first slide block (1) and second slide block (2) rear end are equipped with elastomeric element.

2. two pole socket interlock protection doors according to claim 1 is characterized in that described elastomeric element is a spring.