CN1074311A

CN1074311A - Electrical outlets

Info

Publication number: CN1074311A
Application number: CN92112686.7A
Authority: CN
Inventors: P·科尔布鲁克; D·S·马洪尼
Original assignee: Caradon MK Electric Ltd
Current assignee: Caradon MK Electric Ltd
Priority date: 1991-10-23
Filing date: 1992-10-23
Publication date: 1993-07-14
Anticipated expiration: 2007-10-23
Also published as: GB9221622D0; JPH06132048A; SA92130195B1; ATE133010T1; GB2261120B; DE69207546D1; CN1054002C; IN181090B; GB9122515D0; MY138626A; GB2261120A; ZW17392A1; EP0539093B1; EP0539093A1

Abstract

A kind of electrical outlets (1), wherein socket cover (20) locks onto the position of closing by means of first locking piece (21,22), and the hole (15,16) on the socket antetheca (2) is covered, first locking piece (21,22) then works by means of the grounding pin or the male member (4) of plug.When removing the lock-out state of first locking piece, grounding pin or male member can be inserted,, make socket cover break away from each hole so the live wire pin of plug and neutral line pin (5,6) are affacted on the socket cover.Preferably be equipped with second locking piece (29,31) socket cover is locked onto its off-position, second locking piece (29,31) works by means of the live wire pin and the neutral line pin (5,6) of plug.

Description

Electrical outlets

The present invention relates to a kind of electrical outlets, this socket has at least two receptacle connectors, for usefulness and a lid of being connected with two or more pin contacts of plug, supply to cover the hole of inserting for plug base pin on the socket antetheca, thereby when plug is not plugged, cover wherein two contacts.

Usually the plug that provides is such: socket cover covers live wire hole and the neutral line hole on the socket, and the component socket lid that extends to the ground wire hole by means of its inclined-plane can move on to the position of opening.Earth pin affacts on the inclined-plane of parts when inserting, and socket cover is pushed away each socket aperture.When plug pulled out, spring then can make lid close.These socket covers are opened simply, as long as insert a probe (probe) in the ground wire hole.

The objective of the invention is to make this socket safer.Therefore, electrical outlets of the present invention has at least two receptacle connectors, for the usefulness that is connected with two or more pin contacts of plug, with a lid, in order to cover the hole on the socket antetheca for the plug base pin insertion, thereby when plug is not plugged, cover wherein two contacts, wherein, socket cover locks onto the position of closing by means of at least one first locking piece, first locking piece then locks by means of the grounding pin of plug or from the male member except plug live wire pin and neutral line pin that plug protrudes, it is characterized in that: at least one such locking component is made by first locking piece system, and it stretches out from socket cover, and grounding pin or male member are then laterally shifted socket cover onto a side, it is between live wire pin and the neutral line pin, thereby makes locking piece break away from the constraint of retainer.

Socket cover preferably has at least a lateral inclination part that live wire hole and neutral line port lid are lived, and wherein these one or more locking components partly stretch out from these one or more lateral inclinations, and socket cover then pushes the position of closing by a spring with it.For making socket cover safer, lateral inclination part itself can also be equipped with second locking piece, the pressure that second locking piece need be socket cover can be shifted to live wire pin and neutral line pin along a direction from grounding pin before affacts the lateral part simultaneously by means of live wire pin and the neutral line pin state that unlocks.

Referring now to the description of drawings some embodiments of the present invention.In the accompanying drawing:

Fig. 1 is the partial plan layout of socket of the present invention, can see some holes on the socket antetheca of first embodiment of the invention;

Fig. 2 is that the socket of Fig. 1 is seen transverse sectional view in the past from the A of BB line intercepting from Fig. 1;

Fig. 3 is the transverse sectional view of the CC line intercepting of socket from Fig. 1 of Fig. 1;

Fig. 3 A shows the second embodiment of the present invention, and its view is similar to the view of the socket cover of Fig. 3;

Fig. 4 to 6 is the plane graph of the seen socket cover moving process of Fig. 1, and Fig. 4 is plug or pin first kind of state when not inserting, and Fig. 5 is the second kind state of the grounding pin of three-pin plug when inserting, and Fig. 6 is all pins the third state when inserting;

Fig. 7 is the perspective view of the socket cover of third embodiment of the invention;

Fig. 8 is a plane graph like socket cover and view Fig. 1 of Fig. 7;

Fig. 9 to 11 is plane graphs of the socket cover seen of Fig. 8, corresponds respectively to the moving process of the socket cover shown in Fig. 4 to 6.

Socket 1 has been shown together with antetheca 2 among Fig. 1 to 3, the three-pin plug 3 half that then shows British Standard among Fig. 3 inserts the situation in the sockets 1.This respect should be noted that, though this configuration mode aim at have grounding pin 4, the British Standard three-pin plug of live wire pin 5 and neutral line pin 6 design, but can use the suitable male member that protrudes from plug to replace grounding pin, under this occasion, just only establish live wire pin and neutral line pin.Although what illustrate is square pins, they can be circular pin equally or have any other suitable shape.

Pin holes

14,15 and 16 is arranged, respectively for inserting

4,5 and 6 usefulness on the antetheca 2.The receptacle connector that the connection pin is used is not shown.

There is a socket cover 20 antetheca 2 belows in the socket, and the latter is locked in Fig. 1 and off-position shown in Figure 4 by means of first locking piece.First locking piece has opposed locking component and fixing retainer 22 of a pair of formation hook-like part 21.Hook-like part 21 is opposite each other, forms the end sections of the flat muscle 23 of elasticity that stretches out from lateral inclination part 25, and when socket cover was closed, lateral inclination part 25 was under

hole

15 and 16, and

hole

15 and 16 is sealed.Lateral part or lock face 25 form on horizontal expansion arm 27.Arm 27 slightly is inclined upwardly to locking edge 29 usually.Locking edge 29 is locked in the lock slots 31 that forms on the inner surface of antetheca 2

adjacent perforations

15 and 16, forms second locking piece.

Hook-like part 21 is equipped with chamfered edge limit 19 and vertical chamfered edge limit 18.

Male member 33 stretches out from the following horizontal expansion muscle 32 that is connected with arm 27, and the stage clip 34 that is rolled into circle promptly affacts on the male member 33.The effect of spring 34 is that socket cover is pushed off-position shown in Figure 1.In case of necessity, can on each arm 27, establish recessed circle 50, when in standard two

pin plug patchholes

15 and 16, circle 50 can be caught pin, thereby even decides also can avoid socket cover to move apart

hole

15 and 16 when state inserts object in hole 14 for first locking piece is removed.

When plug 3 inserted socket 1, grounding pin 4 affacted earlier on the chamfered edge 19 of hook-like part, forces hook-like part 21 to open.They have just left retainer 22, as shown in Figure 5.Then, on the sloping portion 25 that short live wire pin 5 and neutral line pin 6 affact socket cover arm 27, force the position of each arm and arm limit 29 40 place's dotted lines in moving down into Fig. 2.At this moment, unlock state and releasing slots 31 of limit 29.

5 and 6 impels socket cover 20 to depart from hole 14 when further inserting, and

hole

15 and 16 is opened, thereby make each pin enter

hole

14,15 and 16 fully, as shown in Figure 6.When plug inserted fully, socket cover recovered its original shape, shown in the solid line among Fig. 2.This is to realize by means of the 2 aslope inner surfaces 36 of the antetheca shown in Fig. 3.

When plug pulled out, spring 34 pushed up back socket cover 20.Each arm or the wing 27 and hook-like part 21 lock again, and socket cover 2 is locked in the position that it is closed.

Retainer 22 has recess 35, and in order to receive hook-like part 21 in position shown in Figure 6, at this moment socket cover does not cover the

hole

15 and 16 on the socket antetheca 2.So making locking component (being hook-like part) can laterally turn back to hook-like part shown in Figure 4, these recesses 35 break away from retainer 22 position before, promptly between

hole

15 and 16.

Center rib 32 is flexible, thereby arm 27 extends from center rib 32 and is attached on the socket cover, thereby arm 27 flexibly upwards pushed to the outer surface of antetheca 2, enters in the groove 31.

Fig. 3 A shows second embodiment, and this is the allocation plan that the socket cover with Fig. 3 changes a little, its medi-spring 34 ' be embedded in hook-like part 21 ' muscle 23 ' and center rib 32 ' between in the recess 35 that forms.This makes socket cover dispose compactlyer.

Be noted that can only establish a hook-like part 21 or 21 ', just not establish a pair of hook-like part effective like that but do like this.

Fig. 7 and 8 shows the 3rd embodiment, when wherein socket cover 120 works be along with first embodiment shown in Fig. 1 to 6 in opposite direction X open hole 115 and 116.Such configuration mode has some benefit, is about to below discuss.

Socket cover 120 is to make to have with the arm 27 similar arms 127 of first embodiment, and just the lateral inclination part 124 of arm 127 is carried grounding pin.When plug began to insert, grounding pin 104 made effect outwards laterally mobile with the member 21 similar locking components 121 of first embodiment.This makes locking component disengaging retainer 122(see Figure 10).Plug makes live wire pin 105 and neutral line pin 106 affact on the sloping portion 125 when further inserting.At this moment arm 127 pressurizeds have overcome the elastic force of center rib 132, are separated from the groove (not shown) of the groove 31 that is equivalent to

first embodiment.So pin

105 and 106 and part 125 interact, impel socket cover to withstand between the member 121 and as the fixed stop 151 of the part of plug molding and the spring 134 between the socket cover end wall 152, shift to grounding pin along directions X.Socket cover 121 moves on to the position shown in Figure 11 together with the member 21 of the constraint that breaks away from retainer 122, and at this moment member 121 is by means of its center that returns elastically of self, and chamfered edge end sections 119 is in the recess 135 of retainer 122.

The 3rd embodiment also has effect and form and the first embodiment similar recessed circle 150 shown in 50.The 3rd embodiment is better than first embodiment, and spring 134 is placed between three pin holes 114-116 fortunately, thereby disposes compactlyer.

More than three embodiment structure more known than prior art good, can not influence the unlatching of socket cover when the grounding pin on the socket cover has any damage fortunately.In addition,, and need not to overcome the socket cover spring and come the mobile socket lid, so when plug began to insert, frictional force was little because the side of grounding pin do not lock.Want the mobile socket lid, need insert all three pins simultaneously.For example, when not having grounding pin or similar male member,

member

21 or 121 still can lock socket cover.If live wire pin or neutral pin are lost, then

arm

27 or 127 keeps lock-out state.If plug for example two pin plug of Continental Europe standard, and the stressed for a certain reason and state that unlocks of

locking component

21 or 121, then concave region 50 or 150 stops socket covers to vertically move.Socket cover and locking component thereof are constituted an integral body, can reduce to cost minimum.Requisite in the socket cover device is spring, and socket cover will have locking device.Remaining any parts,

retainer

22 or 122 for example all is molded into the part of jack assemblies.Therefore, the assembling of socket in manufacture process is also simple, and material benefit.In addition, not as the situation of many previous socket cover devices, require high from the fabrication tolerance of said structure.

Claims

1, a kind of electrical outlets, have at least two receptacle connectors, for the usefulness that is connected with two or more pin contacts of plug, with a socket cover, for the hole that covers on the socket antetheca for the plug base pin insertion, thereby when plug is not plugged, cover wherein two contacts, wherein, described socket cover locks onto off-position by means of at least one first locking piece, first locking piece then locks by means of the grounding pin of plug or the male member except plug live wire pin and neutral line pin that protrudes from plug, it is characterized in that first locking piece is made at least one such locking component, it stretches out from socket cover, grounding pin or male member are then laterally shifted socket cover onto a side, and it is between live wire pin and the neutral line pin, thereby make this locking component break away from the constraint of retainer.

2, socket as claimed in claim 1, it is characterized in that, begin to insert grounding pin when making one or more locking components break away from the constraint of retainers, socket cover can not be moved on the centerline direction of line between each center, aperture of using of live wire pin contact and neutral line pin contact on perpendicular to the socket antetheca being parallel to plug.

3, socket as claimed in claim 1 or 2, it is characterized in that, described socket cover system makes and makes it have at least one lateral inclination part live wire hole and centerline hole on the antetheca are covered, and these one or more locking components partly stretch out from these one or more lateral inclinations, and described socket cover then pushes off-position by a spring assembly with it.

4, as each described socket of claim 1 to 3, it is characterized in that, described one or more lateral inclination partly is to form on second locking piece locks onto each arm of off-position, and second locking piece can work by means of the live wire pin and the neutral line pin of described plug.

5, socket as claimed in claim 4 is characterized in that, edge on slotting each arm of the second locking piece bag and the groove in the socket, and each edge embeds in each groove when off-position.

As claim 4 or 5 described sockets, it is characterized in that 6, each arm extends from elastic center muscle parts transversely.

7, as each described socket of claim 4 to 6, it is characterized in that each arm is contained on the socket cover, thereby can flexibly upwards push the outer surface of antetheca to.

8, as each described socket of claim 1 to 7, it is characterized in that, retainer has one or more recesses, receive this one or more locking components when not covering each hole on the socket antetheca at socket cover, thereby make these one or more locking components break away from retainer constraint residing position before along laterally turning back to basically.

9, as each described socket of claim 4 to 8, it is characterized in that, live wire pin and neutral line pin force each arm to break away from each groove downwards together with its each edge when inserting, thereby make socket cover can depart from the aperture that male member on the described antetheca of socket or grounding pin are used backward, and retainer is between the aperture of using in aperture that male member or grounding pin use and live wire pin and neutral line pin.

10, as each described socket of claim 4 to 8, it is characterized in that, live wire pin and neutral line pin force each arm to break away from each groove downwards together with its each edge when inserting, thereby socket cover can be shifted to forward in the aperture that male member on the described antetheca of socket or grounding pin use, and retainer is positioned at and adjoin hole that male member or grounding pin use in the most close live wire pin and the neutral line pin position with that side opposite side of hole.

11, socket as claimed in claim 3 is characterized in that, spring assembly is a stage clip that is rolled into circle, adjoins between male member or the grounding pin usefulness part in hole at two described locking components and socket.