CN2276207Y

CN2276207Y - Safety door structure of power supply socket

Info

Publication number: CN2276207Y
Application number: CN96243407U
Authority: CN
Inventors: 余英伟
Original assignee: Jinming Co ltd
Current assignee: Jinming Co ltd
Priority date: 1996-10-25
Filing date: 1996-10-25
Publication date: 1998-03-11
Anticipated expiration: 2006-10-25
Also published as: GB9710701D0; GB2318693A; GB2318693B

Abstract

The utility model relates to a safety door structure of power supply sockets, comprising a rectangular frame, an upper slide block, a lower slide block, an upper spring, and a lower spring. The upper and the lower slide blocks are in a conical shape and are arranged on the frame, while the upper and the lower springs are arranged between the edge of the frame and the upper and the lower slide blocks. When the two plug pins of the socket of an electrical appliance are inserted into the safety door of the utility model, the safety door can be opened conveniently. When a plug is pulled out from the socket, the safety door can be closed automatically. When the safety door is touched by a metallic conductive body, the slide blocks in the conical shape are inclined to one side due to the unilateral stress, while the slide blocks are just locked by arranged convex areas and can not be moved. Thus the utility model has safety action, simple structure, convenient assembly, and high safety.

Description

The emergency exit structure of supply socket

The utility model relates to a kind of electrical appliance, more specifically to a kind of power socket security door structure.

The world today, because science and technology develops rapidly, advanced electrical appliance has become the daily life necessity of every household.Along with the appearance of various types of home appliances, plug and socket miscellaneous also arises at the historic moment.In order to start electrical appliance, usually the plug of being adorned on the electrical appliance is inserted supply socket, the electric current supply is just arranged immediately.The time spent is not then transferred to plug and gets final product, and is very convenient.

Yet plug has the branch of bipod and tripod, and the industrial electrical equipment apparatus also has four-pin plug.Because plug is used with socket, so socket also has two holes approximately, three holes and four holes.For three holes and four spring hole scokets, its nearly top is provided with a bigger hole, is used to connect ground wire.When if electric leakage appears in electrical appliance, just become short circuit immediately, the electric current in the circuit increases suddenly, so the fuse that just fuses, circuit is cut off, just can avoid people's Danger Electric shock risk like this.If but careless, perhaps be not careful, the live wire hole of electric conductor insertion supply socket, the danger of electric shock will take place, and particularly for child, out of curiosity, the danger of electric shock can increase greatly, especially keeps an eye under about situation no adult.

For this reason, emergency exit is equipped with in some supply socket of selling on the market, in case unexpected the generation.Yet, this socket that emergency exit is housed, structurally or the fail safe aspect all have some problem, for example: its emergency exit of three-hole power socket that emergency exit generally is housed is "T"-shaped, it is to be contained in the socket between the metallic conductor connector and jack housing jack.The transverse ends of "T"-shaped emergency exit is and the corresponding cover plate of two little jack sizes, and "T"-shaped vertical front end is and the corresponding cover plate of big jack size.Described vertical lid surface is the inclined-plane.In addition, the centre of "T"-shaped transverse end is provided with a spring, and the one end withstands "T"-shaped emergency exit transverse end, and the other end of this spring withstands on the Socket casing.Like this, when inserting three-hole power socket when the use electrical appliance and the three-pin plug of electrical appliance, because the length of the grounding pin on the plug slightly is longer than other two pins, it is introduced in the corresponding jack and with the cover plate that is the inclined-plane and contacts.Under the effect of insertion force, one side tiltedly cover plate can be inserted in the connector of socket pin to removing.When is one side removed,, expose jack at oblique cover plate Yi Bian the cover plate of transverse ends also removes and make the spring that withstands by compression to same thereupon; Two other pin also is inserted in the connector of socket by jack simultaneously on the plug, thus energized.When electrical appliance is stopped using, then plug is transferred to from socket.In case the pin on the plug leaves the jack on the socket, "T"-shaped emergency exit moves under the spring force effect round about, and corresponding cover plate just covers corresponding jack, prevents to get an electric shock thereby reach, and plays emergency exit.

Yet above-mentioned existing emergency exit structure is only applicable to Three-hole socket, and can't use on two hole socket.In addition, the Three-hole socket that above-mentioned emergency exit is housed must be used with specific plug, otherwise its emergency exit can't work.With the plug that above-mentioned socket is used, the length of its earth pin must be longer than the length of other two pins; If the equal in length of three pins on the plug then can't be inserted above-mentioned Three-hole socket.Because living, can not open the pin shelves that the cover plate of emergency exit is inserted simultaneously.The scope of application of like this, the above-mentioned socket with emergency exit is very limited.

In addition, for commercially available two hole power sockets that emergency exit is housed, its emergency exit is one and the sizable long shaped plate of two jacks, the place respectively is provided with an inclined-plane in the middle of the two long limits of this plate, the inclined-plane that forms on described inclined-plane and the Socket casing matches, described plate is kept covering jack by spring, plays the emergency exit effect.But this structure is not to be perfectly safe, because when inserting jack with a thin flat sheet of metal along the jack edge, emergency exit still can be opened, so the danger of getting an electric shock still exists.

For this reason, the purpose of this utility model is to provide a kind of emergency exit structure of supply socket, and it not only is applicable to two hole power sockets, also is applicable to three-hole power socket, and simple in structure, safe and reliable.

The emergency exit structure of the utility model supply socket comprises: a framework that is rectangle, its that side that will be installed on the jack housing is an open ports, and its relative another side is sealing, and jack is offered at position of the metal connector of respective socket on it; Two upper and lower emergency exit slide blocks, described upper and lower slide block dispose and vertically being arranged in the described framework along described framework mutually relatively; And two upper and lower spring, described upper spring laterally and in the roughly middle part of upper side frame is configured between described top shoe and the described upper side frame along described framework, the effect of spring force moves downward described top shoe, and described lower spring with and described framework laterally and in the roughly middle part of lower frame be configured between described sliding block and the described lower frame, the effect of spring force moves upward described sliding block.

The emergency exit structure of the utility model supply socket can be easily by bonding or other connected mode devices between the metallic conductor connector and jack housing jack of general two holes or three-hole power socket.When with a metal bar when receptacle sockets is inserted because upper and lower emergency exit slide block is pinned and can't open by simple structure of the present utility model, play safety effect thereby metal bar can not insert.But when the plug insertion socket jack on the electrical appliance, the upper and lower slide block of emergency exit is understood smooth opening and energized.

Obviously, the utility model power socket security door structure not only can be used for two spring hole scokets, also can be used for Three-hole socket, and simple in structure, easy to assembly, safe and reliable.

Fig. 1 is the three-dimensional decomposition assembling figure of a preferred embodiment of the utility model power socket security door structure;

Fig. 2 is the utility model power socket security door structure front view;

Fig. 3 is the strabismus stereogram of the utility model power socket security door structure;

Strabismus stereogram when Fig. 4 inserts socket for plug by the utility model power socket security door structure; And

Fig. 5 is the strabismus stereogram of a pin desire when the utility model power socket security door structure of plug.

Below, with the structure accompanying drawing, the utility model is done narration in more detail.By explanation, the purpose of this utility model and advantage thereof and effect will be more clear and clear.

With reference to Fig. 1-3, the utility model power socket security door structure comprises: a framework that is rectangle 1, its that side that will be installed on the supply socket shell is an open ports, and the another side relative with it is sealing, and jack 2 is offered at position of the metal connector of respective electrical supply socket on it; Two upper and lower emergency exit slide blocks 3 and 4, described upper and lower slide block dispose and vertically being arranged in the framework 1 along framework 1 mutually relatively; And two upper and

lower spring

5 and 6, upper spring 5 laterally and in the roughly middle part of upper side frame 7 is configured between top shoe 3 and the upper side frame 7 along framework 1, the effect of spring force moves downward top shoe 3, and lower spring 6 laterally and in the roughly middle part of lower frame 8 is configured between sliding block 4 and the lower frame 8 along framework 1, and the effect of spring force moves upward described sliding block 4.

Framework 1 also comprises the

boss

11 and 12 that left and right horizontal frame 9 and 10 about middle parts are set, and an end 13 of the convex platform 11 restriction top shoes 3 on the left frame 9 moves downward, and ends 14 of 12 restrictions of the lower convex platform on the left frame 10 sliding block move upward.

More than,

lower convex platform

11 and 12 is benchmark, at the upper and lower position of the left and right frame 9 that is equivalent to slide block end thickness " H " and 10 and with upper and lower frame 7 and 84 projectioies 15 is set on the closed side of framework 1 abreast respectively.Described protruding 15 height of projection should less than slide block 3 and 4 spin taper prism 17 with by spinning the ultimate range " L " of the angle of the tangent line 18 of wide part of taper.

Upper and lower slide block 3 and 4 all is and spins taper, and the mid portion width is greater than the width at its both ends.The mid portion of the upper surface 16 of top shoe 3 is provided with the recess 19 of an arrangement upper spring 5, and its nearly side end 13 is provided with a through hole 20, and closely another side end is provided with a ledge 21 that extends vertically downward; The both sides of the side of top shoe 3 are provided with downwards and intilted inclined-plane 22 and 23, and the two edges of another side are respectively equipped with intilted chamfering (not shown).Equally, the downward mid portion of sliding block 4 is provided with the recess 24 of an arrangement lower spring 6, and its nearly side end 14 is provided with a through hole 25, and closely another side end is provided with a ledge 26 that extends vertically downward; The both sides of one side of described sliding block 4 are provided with upwards and lean-in inclined-

plane

27 and 28, and the two edges of another side are respectively equipped with intilted chamfering (not shown).

Upper and lower slide block 3 and 4

ledge

21 and 26 length are slightly less than half of described framework 1 transverse width.Its shape is preferably cylindrical, and shape and size should match with through hole 20 and 25.In addition, two edge lengths of spinning taper of upper and lower slide block are unequal, and an edge lengths that is provided with

ledge

21 and 26 is slightly larger than the length that is provided with through

hole

20 and 25 limits.

The utility model power socket security door structure is assembling like this and uses.Ledge 21 on the top shoe 3 is inserted in the through hole 24 on the sliding blocks 4, make simultaneously in the through hole 20 that the ledge 26 of sliding block 4 inserts on the top shoes 3.The upper and lower slide block 3 and 4 that will be assembled together is then put into described framework 1, and an end 13 of top shoe 3 is rested on the convex platform 11 in the framework 1, simultaneously, an end 14 of sliding block 4 is rested on the lower convex platform 12 in the framework 1.At last, upper spring 5 is placed on the recess 19 of top shoe 3, compression spring 5 makes between its upper side frame 7 that is in top shoe 3 and framework 1, in addition in the same way, lower spring 6 is between the lower frame 8 of sliding block 4 and framework 1.Be power socket security door structure of the present utility model by what aforesaid way was assembled.

Emergency exit structure of the present utility model is arranged in the two general hole power sockets.At first take socket apart, the utility model emergency exit structure is placed between jack housing and the metal plug connector.The open surface of emergency exit structure is fixed on the jack of jack housing.General available binding agent combines, and also available screw etc. connects fixing.The structural inclined plane 22 of emergency exit should be relative with jack with 27 and 23 and 28.For the utility model emergency exit structure applications in three-hole power socket, even four spring hole scokets, persons skilled in the art also can be easy to accomplish that this paper does not give unnecessary details separately with reference to the foregoing description.

With reference to Fig. 4, when the two-pin plug with electrical appliance is inserted into two hole power sockets that the utility model emergency exit structure is housed, two pins 29 on the plug and 30 are earlier by the jack on the socket, afterwards immediately with upper and lower slide block 3 and 4 on inclined-

plane

22,27 contact with 23,28.Because two pins on the plug insert simultaneously, the power that puts on the emergency exit is uniformly, spins the both ends of conical sliding block so upper and lower slide block 3 and 4 all withstands the back side with the wideest part in centre of spinning taper and all surmounts projection 15, is not subjected to its resistance shelves.Like this, along with pin enter and act on inclined-plane on the slide block, make upper and lower slide block overcome the elastic force of upper and lower spring and it moved up and down, emergency exit is opened.Be connected with metal connector in the socket by the jack that is provided with on the emergency exit sealing surface again, and energized.

With reference to Fig. 5,,, be the upper and lower slide block that spins taper and can be inclined to stressed one side because emergency exit is monolateral stressed if insert with a pin.Like this, projection 15 just in time shelves live in, an end of sliding block, thereby upper and lower slide block can't be moved up and down, this moment, emergency exit can't be opened.The purpose of emergency exit also just reaches.If insert from another jack with a pin, situation also can reach purpose of safety to above-mentioned similar.

Claims

1. the emergency exit structure of a supply socket is characterized in that, described emergency exit structure comprises:

One framework that is rectangle, its that side that will be installed on the jack housing is an open ports, and the another side relative with it is sealing, jack is offered at position of the metal connector of respective socket on it;

Two upper and lower emergency exit slide blocks, described upper and lower slide block dispose and vertically being arranged in the described framework along described framework mutually relatively; And

Two upper and lower springs, described upper spring laterally and in the roughly middle part of upper side frame is configured between described top shoe and the described upper side frame along described framework, the effect of spring force moves downward described top shoe, and described lower spring laterally and in the roughly middle part of lower frame is configured between described sliding block and the described lower frame along said framework, and the effect of spring force moves upward described sliding block.

2. emergency exit structure according to claim 1, it is characterized in that, the middle part of the horizontal left and right frame of described framework respectively is provided with a boss, the end that convex platform on the left frame limits described top shoe moves downward, and the end that the lower convex platform on the left frame then limits described sliding block moves upward.

3. emergency exit structure according to claim 1 and 2, it is characterized in that, with described boss is benchmark, on the closed side at described framework 4 projectioies is set abreast at the upper and lower position of the left and right frame that is equivalent to described slide block end thickness and with described upper and lower frame respectively.

4. emergency exit structure according to claim 1 is characterized in that, described upper and lower slide block all is and spins taper, and the mid portion width is greater than the width at its both ends.

5. emergency exit structure according to claim 4, it is characterized in that, mid portion on the upper surface of described top shoe is provided with the recess of the said upper spring of an arrangement, and its nearly side end is provided with a through hole, and closely another side end is provided with a ledge that extends vertically downward; The both sides of one side of described top shoe are provided with downwards and intilted inclined-plane, and the two edges of another side are respectively equipped with intilted chamfering.

6. emergency exit structure according to claim 4, it is characterized in that, mid portion on the lower surface of described sliding block is provided with the recess of the described lower spring of an arrangement, and its nearly side end is provided with a heavy straight upwardly extending ledge, and closely another side end is provided with a through hole; The both sides of one side of described sliding block are provided with the intilted inclined-plane that makes progress, and the two edges of another side are respectively equipped with intilted chamfering.

7. according to claim 5 or 6 described emergency exit structures, it is characterized in that, ledge on the described sliding block passes about through hole on the described top shoe, and the ledge on the described top shoe also passes the through hole on the described sliding block simultaneously, and both shapes and size should cooperatively interact.

8. emergency exit structure according to claim 3 is characterized in that, described height of projection should less than slide block spin the taper prism with by spinning the ultimate range of the angle of the tangent line of wide part of taper.

9. according to claim 5 or 6 described emergency exit structures, it is characterized in that the length of the ledge on the described upper and lower slide block is slightly less than half of described framework transverse width.

10. according to claim 5 or 6 described emergency exit structures, it is characterized in that its two edge lengths of spinning taper of described upper and lower slide block are unequal, an edge lengths that is provided with ledge is slightly larger than and is provided with through hole length on one side.