CN201238097Y - Safety door device of socket and socket having the same - Google Patents

Abstract

The utility model provides an exit device used for a socket and a safe socket using the exit device. The exit device comprises a base board, a slide block which can slide relatively to the basic board and an elastic piece; wherein, the base board is provided with a plurality of gaps corresponding to the shape of a jack; the slide block comprises at least two inclined blocks with incline planes; the incline planes are set to lead the slide block to be pushed and move along the direction opposite to the shapes of the gaps when one inserter props against at least two incline planes to move downwards; a limitation element is arranged between the base board and the slide block and used for limiting the moving range of the slide block relative to the base board; one end of the elastic element is connected with at least two inclined blocks and is set to lead at least two inclined blocks to cover the gaps under the static state of the elastic element. The exit device is compact and simple in structure, is broad in application and can be used for the 5-20R socket and jack of the American NEMA WD6 standard in particular.

Description

A kind of socket secure door gear and have the socket of this safety-door device

Technical field

The utility model relates generally to electric connector field, particularly a kind of socket that is used for the safety-door device of socket and has this safety-door device.

Background technology

Commonly used wall socket or prolong the socket of line style in the daily life is typically provided with a group or more jack, and the jack form comprises two holes or trifora.We are not difficult to find in the use, and opening jack is easy to make the conducting strip in the socket to be subjected to the humidity effect of air and is corroded, and may accumulate dust in socket and influence electrical efficiency.This socket is being hidden a lot of danger in the hiding, especially disadvantageously, under wrongful operation or because children's curiosity is all inserted the generation that causes electric shock accidents in the jack with the foreign matter that conducts electricity probably, thus threat to life property and safety.

At the problems referred to above, the safe socket of some improvement has appearred on the market, though avoided the generation of above-mentioned safety problem to a certain extent, the leeway that still has improvement optimization is to enlarge its range of application, raising reliable degree and to reduce production costs.Applicant of the present utility model had once submitted a utility model on January 29th, 2008, name is called: " a kind of socket secure door gear and have the socket of this safety-door device ", application number is: 200820055220.4, introduced a kind of receptacle sockets safety-door device in this application, quoted in full herein.This receptacle sockets safety-door device can effectively prevent from will conduct electricity foreign matter and insert the electric shock accidents that receptacle sockets causes owing to misoperation or children's curiosity, and standard plug can insert jack smoothly, and influence is normal uses.But this utility model only is suitable for general common socket, 5-15R socket as U.S. NEMA WD6 standard, under the situation of some special receptacle jack, 5-20R socket as U.S. NEMA WD6 standard, the breach that the conduction foreign matter is not covered by this safety-door device from the T shape jack of this socket probably fully inserts the generation that causes electric shock accidents, and the 5-20R plug of standard can't normally insert.

The utility model content

The utility model is intended to existing safety-door device is improved, and enlarges its scope of application, makes it not only be suitable for common socket, also can be applicable to the 5-20R socket fully.For realizing this purpose, designed safety-door device needs to cover the whole form range of T shape jack in the receptacle sockets of 5-20R, and can realize the safety backstop to T shape jack each several part when the conduction foreign matter inserts.

Based on above-mentioned principle, an aspect of the present utility model provides a kind of safety-door device that is used for socket, but comprise substrate, with the slide block and the elastic component of substrate slide relative, wherein, described substrate is provided with a plurality of breach corresponding with the jack shape; Described slide block comprises at least two skewbacks with inclined-plane, this inclined-plane be provided so that when an insert when described at least two inclined-planes move down, described slide block can be pushed and move along the direction of described relatively notch geometry; Between described substrate and described slide block, be provided with limit element, in order to limit the range of movement of the relative substrate of described slide block; One end of described elastic component is connected with described two skewbacks at least, and is configured such that described at least two skewbacks cover described breach under the inactive state of described elastic component.

Advantageously, the inclined-plane of described at least two skewbacks is provided with in the same way, makes when plug normally inserts, and these at least two skewbacks move towards same direction, has significantly reduced the accommodation space of this safety-door device in the socket.

Preferably, described at least two skewbacks form as one, thereby can simplify the manufacturing process of slide block, as can simply making by technologies such as moldings.

Described limit element is included in second limiting section on the lower surface that is formed at first limiting section around the described breach on the upper surface of described substrate and is formed at described skewback, and described first limiting section and described second limiting section can be bonded with each other.

Alternatively, described first limiting section comprises at least one groove or the projection that is formed at around the described breach, and described second limiting section comprises corresponding at least one projection or groove.

Preferably, described first limiting section is a wedge-shaped slot, and described second limiting section is the lower surface of the skewback corresponding with this wedge-shaped slot shape, and can be embedded in this wedge-shaped slot.

Advantageously, the upper surface of described skewback is corresponding with the wedge-shaped slot shape.When the lower surface of a skewback embeds in the wedge-shaped slot, because two skewbacks form as one, the corresponding perk of the upper surface of another skewback, the upper surface of skewback is set to corresponding with the shape of wedge-shaped slot, can avoid the roof of the upper surface touching socket loam cake of this perk, thus the also corresponding accommodation space that has reduced in the socket.

Also be provided with protuberance between described substrate and described slide block, this protuberance is used for the joint of auxiliary described first limiting section and described second limiting section.

Alternatively, described protuberance is the projection that is formed on the upper surface of described substrate between the described breach.

Preferably, described protuberance is to be formed on the lower surface of described slide block and the projection between the described breach of correspondence.

Advantageously, an end of described elastic component is connected with described skewback by being formed at projection on the described skewback or shrinkage pool or hook.Described elastic component may be selected to be stage clip or tension spring or the like.

According to another aspect of the present utility model, a kind of safety-door device that is used for socket also is provided, but comprise substrate, with the slide block and the elastic component of substrate slide relative, wherein, described substrate is provided with a plurality of breach corresponding with the jack shape; Described slide block comprises at least two skewbacks with inclined-plane, described inclined-plane be provided so that when an insert when described at least two inclined-planes move down, described slide block can be pushed and move along the direction of described relatively notch geometry; Be respectively equipped with limit element between described substrate and the described skewback and between each skewback, in order to limit the range of movement of the relative substrate of skewback; One end of at least one described elastic component is connected with described two skewbacks at least, and is configured such that described at least two skewbacks cover described breach under the inactive state of described elastic component.

In this case, described slide block can comprise first skewback and second skewback that is slidingly installed with substrate, and the main skewback and the secondary skewback that are slidingly installed and can move perpendicular to the moving direction of first skewback and second skewback with substrate.Wherein, the inclined-plane of first skewback and second skewback is oppositely arranged, and the inclined-plane of main skewback and secondary skewback is oppositely arranged.

Advantageously, the inclined-plane of main skewback and secondary skewback is set to intermeshing engaging tooth.

Preferably, substrate, first skewback and the nested setting of second skewback also are provided with the breach corresponding with the jack shape on first skewback and second skewback, thereby also can reach the purpose that reduces accommodation space.

In an optimal way, main skewback and secondary skewback are arranged between first skewback and second skewback.

In another optimal way, described substrate is fixedlyed connected with one of second skewback with first skewback.

Advantageously, described substrate is fixedlyed connected with shrinkage pool or draw-in groove by projection with one of second skewback with first skewback.

Described limit element comprises first skewback and the first spacing limiting section of second skewback, and to main skewback and the second spacing limiting section of secondary skewback, wherein, described first limiting section is formed on substrate, first skewback and second skewback respectively and can be bonded with each other, and described second limiting section is formed on first and/or second skewback and main skewback and the secondary skewback respectively and can be bonded with each other.

Alternatively, described first limiting section is pieceable at least one projection and the otch that is formed on substrate, first skewback and second skewback.

Alternatively, described second limiting section comprises pieceable at least one projection and the otch that is formed on first and/or second skewback and main skewback and the secondary skewback.

Further, but described second limiting section also comprises the abutment surface that makes mutual butt between the first/the second skewback and main skewback and the secondary skewback, and when insert correctly inserted, this abutment surface was separated from each other.

One end of at least one described elastic component is by being formed on projection on described first skewback and second skewback or shrinkage pool or hook and be connected with described skewback.

In addition, also preferably be provided with another elastic component that an end is connected with substrate.One end of this another elastic component is by being formed on projection on the described substrate or shrinkage pool or hook and be connected with described substrate.Described elastic component may be selected to be stage clip or tension spring or torsion spring or the like.

Another purpose of the present utility model is to provide a kind of safe socket that has above-mentioned safety-door device, comprise the loam cake that is provided with jack, with the pedestal that flexibly connects with described loam cake, be provided with the conducting strip corresponding to described jack on this pedestal, described safety-door device is arranged between described loam cake and the described pedestal.

Preferably, cover on described also be provided with described at least two skewbacks on be connected the loam cake location division that the projection of described elastic component one end or shrinkage pool or hook are oppositely arranged.

Described loam cake location division can be the madial wall of the loam cake corresponding with the safety-door device of above-mentioned second aspect or covers the inner loam cake projection that protrudes out formation with corresponding the making progress from last lid top wall of safety-door device of above-mentioned first aspect.

Adopt safety-door device of the present utility model and socket, in the various functions that can realize existing safety-door device and socket, its structure is more simple, safe and reliable, easy to use, applicable to various types of sockets, and the 5-20R socket of U.S. NEMA WD 6 standards especially.

Description of drawings

Fig. 1 is for being installed in the exploded view on the socket according to the safety-door device of the utility model one execution mode;

Fig. 2 a-2c is the stereogram that this safety-door device structure is shown, and wherein Fig. 2 a is the exploded view of this safety-door device, Fig. 2 b for the slide block among Fig. 2 a from A to the stereogram of watching, Fig. 2 c be the stereogram after this safety-door device is assembled;

Fig. 3 is the exploded view that this safety-door device is observed from another angle, and wherein socket part only shows the socket loam cake, and the upper left side shows the safety-door device of decomposition, and the upper right side shows the safety-door device of assembling;

Fig. 4 is installed in the interior three-dimensional cutaway view of socket for this safety-door device;

State diagram when Fig. 5 a-5c does not have insert to insert for this safe socket, wherein Fig. 5 b is the cutaway view along A-A line among Fig. 5 a, Fig. 5 c is the cutaway view along B-B line among Fig. 5 a;

Fig. 6 a-6d has the schematic cross sectional views of foreign matter when the one-sided jack of this safe socket inserts, and wherein Fig. 6 b is the cutaway view along C-C line among Fig. 6 a, and Fig. 6 d is the cutaway view along D-D line among Fig. 6 c;

Fig. 7 a-7d is the schematic cross sectional views when plug is inserted this safe socket with correct way, schematic diagram when wherein Fig. 7 a and 7b are for insertion 5-15P plug, Fig. 7 b is the cutaway view along E-E line among Fig. 7 a, Fig. 7 c and 7d are the schematic diagram when inserting the 5-20P plug, and Fig. 7 d is the cutaway view along F-F line among Fig. 7 c;

Fig. 8 is for being installed in the exploded view on the socket according to the safety-door device of another execution mode of the utility model;

Fig. 9 a-9c is the stereogram that this safety-door device structure is shown, and wherein Fig. 9 a is the exploded view of this safety-door device, Fig. 9 b for second skewback among Fig. 9 a from B to the stereogram of watching, Fig. 9 c be the stereogram after this safety-door device is assembled;

Figure 10 is the exploded view that this safety-door device is observed from another angle, and wherein socket part only shows the socket loam cake;

State diagram when Figure 11 a-11b does not have insert to insert for this safe socket, wherein Figure 11 b is the cutaway view along X-X line among Figure 11 a;

Figure 12 a-12b has the schematic cross sectional views of foreign matter when the one-sided jack of this safe socket inserts, and Figure 12 a shows the situation that foreign matter inserts from I shape jack, and Figure 12 b shows the situation that foreign matter inserts from T shape hole;

Figure 13 a-13b has the schematic cross sectional views of foreign matter when the horizontal jack of the T shape jack of this safe socket inserts, and wherein Figure 13 b is the cutaway view along Y-Y line among Figure 13 a;

Figure 14 a-14b is the schematic cross sectional views when plug is inserted this safe socket with correct way, and wherein Figure 14 a is for inserting the schematic diagram of 5-15P plug, and Figure 14 b is for inserting the schematic diagram of 5-20P plug;

Figure 15 a-15c is the schematic three-dimensional cutaway view of other execution modes of the present utility model.

Description of reference numerals

1 socket loam cake, 11 earth jacks, 12 I shape jacks

13 T shape jacks, 14 loam cake projections, 2 pedestals

21,22 conducting strips, 3 safety-door devices, 31 slide blocks

311,312 skewbacks, 3111,3121 inclined-planes, 313 shrinkage pools

314 protruding 32 substrates, 321,322 wedge-shaped slots

323 T v notch vs, 324 I v notch vs, 37 stage clips

4 foreign matters, 5 5-15P plugs, 51 5-15P inserted sheets

65-20P plug 61 vertical plug blades 62 horizontal plug blades

31 ' the first skewbacks, 310,330 inclined-planes, 315,316 protruding guide rails

317,336 T v notch vs, 318 stage clip projections, 32 ' substrate

320 torsion spring posts, 325,326 joint pins, 327 I v notch vs

33 second skewbacks, 331 stage clip projections, 332,333 connecting holes

341,351 butt inclined-planes, 334,335 butt inclined-planes, 34 main skewbacks

342,352 guide-track grooves, 343,353 engaging tooths, 35 secondary skewbacks

36 torsion springs, 361,362 torsion spring presser feets, 328,319 stop surface

329 torsion spring blocks 319 ', 336 stop surface 315 ', 316 ' skewback draw-in groove

Embodiment

More features of the present utility model and advantage will be by understanding further describing better of preferred implementation below in conjunction with accompanying drawing.Wherein, identical same or analogous parts of designated.When describing T shape jack or breach,, will be called vertically with the shape of I shape jack or breach with towards corresponding part in the T shape structure, and the part vertical with I shape jack or breach direction is called laterally for ease of describing.In addition, the word of expression direction as " on ", D score also just is used for the respective direction as shown in the description figure, is not as limiting.

The safety-door device and the socket of the utility model first preferred implementation are described below in conjunction with Fig. 1-7d.

At first referring to Fig. 1, the safe socket that adopts this preferred security door gear mainly by socket loam cake 1 with form with this loam cake 1 movable pedestal that is connected 2, wherein, loam cake 1 is provided with earth jack 11 and both positive and negative polarity jack, this both positive and negative polarity jack is the jack that is applicable to U.S. NEMA WD6 standard 5-20R socket, has I shape jack 12 and T shape jack 13.On loam cake 1, also can be provided with the breach of installing reset button and test button.Pedestal 2 is provided with corresponding to the both positive and negative polarity conducting strip 21 of described jack 11,12 and 13 and ground connection conducting strip 22, and described safety-door device is positioned between loam cake 1 and the pedestal 2, and preferably is placed on over against the position of both positive and negative polarity jack 12 and 13.

Fig. 2 a-2c shows in detail the safety-door device of this execution mode.But this safety-door device 3 comprise substrate 32, with the slide block 31 and the elastic component 37 of substrate 32 slide relative.Substrate 32 is provided with T v notch v 323 corresponding with both positive and negative polarity jack 12 and 13 shapes and I v notch v 324.Slide block 31 in this execution mode can comprise that two have inclined- plane 3111,3121 skewback 311,312, inclined- plane 3111,3121 can be provided with in the same way, also can be oppositely arranged, thereby make these two skewbacks 311,312 can make respectively or form as one by modes such as moldings, and can be according to its structure of the corresponding change of the concrete structure of socket inside.

Be included in second limiting section on the lower surface that is formed at first limiting section around the breach 323,324 on the upper surface of substrate 32 and is formed at skewback 311,312 in order to the limit element of the range of movement that limits described slide block 31 relative substrates 32.What it is contemplated that is that this first and second limiting section all can be set to corresponding mutually and pieceable at least one projection or groove, for example, at breach 323, the a plurality of draw-in grooves of space set around 324, and corresponding position is provided with a plurality of buckles on the lower surface of skewback 311,312; Perhaps around breach 323,324, a plurality of fins are set, a plurality of fins are set and on the lower surface of skewback 311,312, also stagger, when skewback and substrate 32 relative motions, the fin that staggers each other up and down can be mutually against to play spacing effect.Those skilled in the art can imagine other various can engage or the mode of buckle realizes this limit function fully.In this embodiment, preferably first limiting section is set to wedge-shaped slot 321,322, and second limiting section is set to and the corresponding lower surface that also can be embedded in skewback 311,312 wherein of this wedge-shaped slot 321,322 shapes.By this way, the structure of two limiting sections all is highly susceptible to making, and especially only need process accordingly the upper surface of substrate 32 to get final product.Because the setting of this position limiting structure, when the lower surface of one of skewback 311,312 is embedded in the corresponding wedge-shaped slot, the perk simultaneously of another skewback, if the accommodation space at this moment in the socket is big inadequately, the rough sledding that skewback and the roof of socket loam cake are touched mutually then probably can take place.For this reason, it is favourable that the upper surface of skewback is set to corresponding with the wedge-shaped slot shape, as Fig. 5 b, and 6a, shown in the 6c etc.

From above-mentioned to the description of limit element as can be known, this execution mode is to have utilized the principle that is similar to " seesaw ", insert and along the inclined-plane 3111 from one-sided jack at the conduction foreign matter, one of 3121 move down when promoting skewback, axis is pivoted longitudinally around being parallel to breach for whole slide block 31, the skewback that is promoted by foreign matter is embedded in the wedge-shaped slot by means of downward thrust, thereby has hindered skewback along horizontal the moving of breach.More advantageously, between substrate 32 and slide block 31, also can be provided with a protuberance, be used for engaging of auxiliary skewback lower surface and wedge-shaped slot.In one case, this protuberance can be set in the projection that is formed on the upper surface of substrate 32 between the breach 323,324.In this embodiment, preferably projection is arranged on the lower surface of slide block 31 corresponding to the position between the breach 323,324.Best this projection 314 can be set to the projection with arc-shaped surface shown in Fig. 2 b, certainly, also can be set to fin, or a plurality of continuously prominent point in the vertical, even directly be made as a bigger prominent point.

In this execution mode, elastic component is preferably stage clip 37, and the one end is connected with slide block 31, the other end then with loam cake 1 inwall on the corresponding construction that is provided with against, this structure will be described below.For simplified structure and reduce accommodation space in the socket, as shown in the figure, be provided with a shrinkage pool 313 on the slide block 31 between two skewbacks 311,312, stage clip 37 can be placed in wherein.Can find out also that from figure the skewback one side direction skewback inner recess that shrinkage pool 313 is set forms a kerf, also is provided with similar otch on substrate 32, the effect of these structures will be described below.Do not having under the situation of these otch, the part that protrudes out from the inclined- plane 3111,3121 shown in the figure can be saved.

Clear showing is arranged on the corresponding loam cake projection 14 of shrinkage pool on the loam cake 1 and skewback 313 among Fig. 3, and it is located near the earth jack 11 sides towards both positive and negative polarity jack 12,13.Otch on the substrate mainly is provided for avoiding ground wire jack, the size that depends on employed stage clip, this loam cake projection 14 can pass from the otch on the substrate 32, also can place this otch top, as shown in Fig. 5 b-6d, and at slide block 31 since the insertion of plug and compression press spring 37 when projection 14 moves, projection 14 is contained in the otch on the slide block 31 equally.

Next further describe the course of work of the safety-door device of this execution mode with reference to Fig. 5 a-7d.

When not having insert to insert, slide block 31 remains on not run-off the straight of inactive state, shown in Fig. 5 b.Conducting strip 21 elements such as grade of socket inside are isolated from the outside, and have prevented the harmful effect of external environment condition (for example dust, moisture etc.) to conducting strip 21.As foreign matter 4 when jack of socket inserts, inserting shown in Fig. 6 a-6b from jack 13, foreign matter 4 touches the inclined-plane 3111 on the slide block 31 and moves down so that skewback 311 is applied downward power, because the booster action of projection 314, skewback 311 is downward-sloping and embed in the corresponding wedge-shaped slot 321 on the substrate 32, thereby make the slide block 31 can't vertically on substrate 32, moving at the effect lower edge of foreign matter applied force breach, thereby the breach on the substrate 32 is effectively covered, prevented that foreign matter 4 from contacting with conducting strip 21 in the pedestal 2.The situation of foreign matter 4 shown in Fig. 6 c-6d when jack 12 inserts is like this equally.

When the 5-15P of standard plug or 5-20P plug insertion jack, shown in Fig. 7 a-7d, because the skewback 311 of slide block 31 both sides, 312 stress equalizations, the lower surface of skewback can not embed in the wedge-shaped slot 321,322 corresponding on the substrate 32, simultaneously because the lock pin abuts ramp surface 3111 of plug, 3121, make the longitudinal sliding motion of slide block 31, even the 5-20P plug also can insert socket smoothly and contact conduction with conducting strip 21 in the pedestal 32 along breach.Can find out also that in Fig. 7 b and 7d after plug was inserted in the socket fully, loam cake projection 14 was contained in the otch that is provided with on the slide block 31.

When plug was extracted from socket, slide block 31 was subjected to the pressure of stage clip 37 and sets back, and covers breach 323,324 again, thereby has effectively avoided the generation of electric shock accidents.

Shown in Fig. 8-14b is the safety-door device and the socket of another preferred implementation of the utility model.Hereinafter, with above-mentioned first execution mode in same or analogous structure repeat no more.

In this embodiment, substrate 32 ' structure all different with action with substrate 32 structures in first execution mode, especially in the first embodiment, substrate 32 is installed in the socket, and here, substrate 32 ' can move with slide block.Best shown in Fig. 9 a-9c, slide block can comprise and first skewback 31 of substrate 32 ' be slidingly installed ' and second skewback 33, and with substrate 32 ' be slidingly installed and can be perpendicular to first skewback 31 ' and the moving direction of second skewback 33 main skewback 34 and secondary skewback 35 of moving.Wherein, first skewback 31 ' and the inclined-plane 310,330 of second skewback 33 be oppositely arranged, the inclined-plane of main skewback 34 and secondary skewback 35 is oppositely arranged, as shown in the figure, and inclined-plane 310,330 can be provided with dorsad, and the inclined-plane of main skewback 34 and secondary skewback 35 can be towards setting, and vice versa as required certainly.Particularly, be set to can intermeshing engaging tooth 343,353 on the inclined-plane of main skewback 34 and secondary skewback 35.

Equally for the reducing of accommodation space, advantageously with substrate 32 ' with first skewback 31 ' with the 33 nested settings of second skewback, shown in Fig. 9 c.First skewback 31 ' and second skewback 33 on therefore also be provided with the breach corresponding 317,336 with the jack shape.In this embodiment, with substrate 32 ' on breach 327 be set to I shape, breach 317,336 is set to T shape.Main skewback 34 and secondary skewback 35 be arranged on first skewback 31 ' and second skewback 33 between, in order to cover first skewback 31 ' on T v notch v 317.Aforesaid, in this execution mode, substrate 32 ' unfixing, but move simultaneously with the insertion of insert, and bear the effect that stops that foreign matter inserts with each skewback.For this reason, advantageously with substrate 32 ' fixedly connected with second skewback 33.From Fig. 9 a as can be seen, upwards protrude out at the upper surface of substrate 32 ' one ends and to be formed with two projections as joint pin 325,326, correspondingly, the lower surface of second skewback, 33 1 ends caves inward and forms two shrinkage pools as connecting hole 332,333, shown in Fig. 9 b.Should be understood that, substrate 32 ' on form shrinkage pool, and form projection on second skewback 33 also is possible, and also is possible with substrate 32 ' with first skewback 31 ' fixedly connected, and only needs first skewback 31 ' get final product with the corresponding change of structure of second skewback 33.Certainly, alleged here " first " is relative saying with " second ", the skewback that is arranged on the top can be called first skewback fully, and vice versa.

For realize substrate 32 ' with being connected of second skewback 33, also need with joint pin 325,326 pass first skewback 31 ', therefore, be arranged on this first skewback 31 ' on the longitudinal component of T v notch v 317 bigger, this can know in Figure 10 and find out.Also can see in the figure, the loam cake projection is not set as in first execution mode in the socket loam cake 1.In this embodiment, stage clip 37 be placed on first skewback 31 ' and second skewback 33 between, and be connected by the stage clip projection 318,331 that is separately positioned on two skewbacks.In illustrated example, stage clip projection 318 is formed on the dorsal part on inclined-plane 310, and stage clip projection 331 is formed on the dorsal part on inclined-plane 330.Certainly, as in first execution mode the stage clip projection be set to shrinkage pool or the hook also be possible.

Similar with the utility model of being quoted, substrate 32 ' a side also be provided with torsion spring 36, it is installed in the end near the socket inwall, the i.e. opposite end that is connected with second skewback 33.Can upwards protrude out at the upper surface of this end and form a projection as torsion spring post 320, torsion spring 36 is set on this torsion spring post 320.The a presser feet 361 unsettled placements of torsion spring 36 are in order to against the loam cake inwall, and can by a retaining wall is set between torsion spring post 320 and breach 327 and on this retaining wall towards torsion spring post 320 protrude out form a torsion spring block 329 and another presser feet 362 against, torsion spring 36 is unlikely from torsion spring post 320 comes off.

In this execution mode, substrate 32 ' with first and second skewbacks 31 ', be respectively equipped with limit element between 33 and between each skewback.Limit element comprises first skewback 31 ' and first spacing limiting section of second skewback 33, and second limiting section spacing to main skewback 34 and secondary skewback 35.First limiting section be formed on substrate 32 ', first skewback 31 ' and second skewback 33 on pieceable at least one projection and otch.Schematically shown among Fig. 9 a and the 9c substrate 32 ' and first skewback 31 ' between corresponding stop surface 328,319 on otch and the projection, and first skewback 31 ' and second skewback 33 between corresponding stop surface 319 ', 336.Second limiting section comprise be formed on first skewback 31 ' and/or second skewback 33 and main skewback 34 and secondary skewback 35 on pieceable at least one projection and otch.Skewback draw-in groove 315 as shown in FIG. ', 316 ', main skewback 34 and secondary skewback 35 can be limited in this draw-in groove to limit it along horizontal the moving of breach.Alternatively, this skewback draw-in groove 315 ', 316 ' also can be provided with protruding guide rail 315,316, the corresponding guide-track groove 342,352 that is provided with of the lower surface of main skewback 34 and secondary skewback 35, when playing position-limiting action, also can lead to main skewback 34 and the mobile of secondary skewback 35.Further, on main skewback 34 and secondary skewback 35, also can be provided with the abutment surface 341 that connects with second skewback 33,351, for this reason, from a skewback upper surface part protruding upward and extend into the bottom of second skewback 33, while advantageously is made as hollow with the bottom of second skewback 33, breach 336 is formed on its upper surface, and protrude out the abutment surface 341 that enters near described relatively main skewback 34 on the position of breach 336 and secondary skewback 35 in the bottom, 351 are formed with butt inclined-plane 334 equally, 335, the effect of second skewback 33 with main skewback 34 and the 35 butt settings of secondary skewback be will be described below.

Figure 11 a-14b shows the course of work of this execution mode.

Shown in Figure 11 b, under static state, substrate 32 ' and each skewback under the effect of stage clip 37 and torsion spring 36, respectively with substrate 32 ' on I v notch v 327 and first skewback 31 ' on the longitudinal component of T v notch v 317 cover, first skewback 31 ' on the lateral part of T v notch v 317 then be meshing with each other and cover by engaging tooth 343 on the main skewback 34 and the engaging tooth 353 on the secondary skewback 35.

As foreign matter 4 when the I shape jack 12 of socket inserts, shown in Figure 12 a, though this foreign matter 4 can against first skewback 31 ' on inclined-plane 310 and force first skewback 31 ' slip, but because substrate 32 ' under the effect of torsion spring 36, make substrate 32 ' on I v notch v 327 can't align with I shape jack 12, and first skewback 31 ' the lower surface on inclined-plane 310 still cover I v notch v 327 fully, thereby foreign matter 4 can't be contacted with conducting strip 21.

As foreign matter 4 when the longitudinal component of the T shape jack 13 of socket inserts, shown in Figure 12 b, though this foreign matter 4 can and force second skewback 33 to slide against the inclined-plane 330 of second skewback 33, but under the acting in conjunction of stage clip 37 and torsion spring 36 (elastic force of stage clip 37 is greater than the elastic force of torsion spring 36), make first skewback 31 ' along with second skewback 33 slides in the same way, thereby, first skewback 31 ' on the longitudinal component of T v notch v 317 still covered fully by 330 on the inclined-plane of second skewback 33, foreign matter 4 can't contact with conducting strip 21.

When foreign matter 4 inserts from the lateral part of the T shape jack 13 of socket, shown in Figure 13 b, this foreign matter 4 can be resisted against the engagement position of main skewback 34 and secondary skewback 35, and attempt to make it separately, but since the two butt inclined- planes 334 and 335 on second skewback 33 respectively with the butt inclined-plane 341 of main skewback 34 and secondary skewback 35,351 connect, and this moment second skewback 33 be not subjected to the effect of power and keep and first skewback 31 ' and substrate 32 ' between the equilibrium of power, thereby by being applied power, this engagement position can't separate engaging tooth 343 separately, 353, thus foreign matter 4 can't contact conducting strip 21.

When the plug 5 of the 5-15 of standard inserts jacks, shown in Figure 14 a, on it two vertically plug blades 51 contact simultaneously first skewback 31 ' on inclined-plane 310 and the inclined-plane 330 on second skewback 33, under the situation of stress equalization, first skewback 31 ', substrate 32 ' and second skewback 33 is mobile simultaneously, make substrate 32 ' on I v notch v 327 align with I shape jack 12 on the loam cake 1, simultaneously first skewback 31 ' on the longitudinal component of T v notch v 317 and the longitudinal component of the T shape jack 13 on the loam cake 1 align, at this moment, two plug blades 51 can be inserted in the jack fully, and contact, thereby realize being electrically connected with conducting strip 21.

When the plug 6 of the 5-20P of standard inserts jacks, shown in Figure 14 b, vertical plug blades 61 on it and horizontal plug blades 62 contact simultaneously first skewback 31 ' on inclined-plane 310 and the inclined-plane 330 on second skewback 33, and make substrate 32 ' on I v notch v 327 align with I shape jack 12 on the loam cake 1, two butt inclined-planes 334 on second skewback 33 and 335 and the butt inclined-plane 341 of main skewback 34 and secondary skewback 35 simultaneously, 351 break away from mutually, make main skewback 34 and secondary skewback 35 can along first skewback 31 ' on protruding guide rail 315,316 slide, and then make vertical plug blades 61 of 5-20P plug 6 and horizontal plug blades 62 insert jack fully and contact with conducting strip 21.

When 5-15P plug or 5-20P plug when receptacle sockets is extracted, under the acting in conjunction of torsion spring 36 and stage clip 37, first skewback 31 ', substrate 32 ' return to original position respectively with second skewback 33, make first skewback 31 ' inclined-plane 310 be covered in substrate 32 ' I v notch v 327 on, simultaneously, the inclined-plane 330 of second skewback 33 is covered in the longitudinal component of the T type breach of master slider 31, and the butt inclined-plane 335 of the butt inclined-plane 341 of main skewback 34 and secondary skewback 35 and 351 and second skewback 33 and 334 recovers the butt state, and the engaging tooth 343 and 353 of main skewback 34 and secondary skewback 35 is meshing with each other.

Figure 15 a-15c also shows the socket of several use the utility model preferred security door gears.As can be seen from the figure, both positive and negative polarity jack 12,13 and the structure of earth jack 11 can change as required, socket also can be wall type socket or prolongs the line style socket, but the structure of safety-door device in addition because this safety-door device compact conformation is simple, is equipped with not more variation of overall dimensions of the socket of this device without any need for change, therefore, the range of application of this safety-door device is very extensive.

Technology contents of the present utility model and technical characterstic disclose as above, yet are appreciated that under creative ideas of the present utility model, those skilled in the art can make various changes and modifications to said structure, but all belong to protection range of the present utility model.The description of the foregoing description is exemplary rather than restrictive, and protection range of the present utility model is determined by claim.

Claims (31)

1, a kind of safety-door device that is used for socket, but comprise substrate, with the slide block and the elastic component of substrate slide relative, wherein,

Described substrate is provided with a plurality of breach corresponding with the jack shape;

Described slide block comprises at least two skewbacks with inclined-plane, this inclined-plane be provided so that when an insert when described at least two inclined-planes move down, described slide block can be pushed and move along the direction of described relatively notch geometry;

Between described substrate and described slide block, be provided with limit element, in order to limit the range of movement of the relative substrate of described slide block;

One end of described elastic component is connected with described two skewbacks at least, and is configured such that described at least two skewbacks cover described breach under the inactive state of described elastic component.

2, safety-door device according to claim 1 is characterized in that, the inclined-plane of described at least two skewbacks is provided with in the same way.

3, safety-door device according to claim 1 is characterized in that, described at least two skewbacks form as one.

4, according to the arbitrary described safety-door device of claim 1-3, it is characterized in that, described limit element is included in second limiting section on the lower surface that is formed at first limiting section around the described breach on the upper surface of described substrate and is formed at described skewback, and described first limiting section and described second limiting section can be bonded with each other.

5, safety-door device according to claim 4 is characterized in that, described first limiting section comprises at least one groove or the projection that is formed at around the described breach, and described second limiting section comprises corresponding at least one projection or groove.

6, safety-door device according to claim 5 is characterized in that, described first limiting section is a wedge-shaped slot, and described second limiting section is the lower surface of the skewback corresponding with this wedge-shaped slot shape.

7, safety-door device according to claim 6 is characterized in that, the upper surface of described skewback is corresponding with the wedge-shaped slot shape.

8, safety-door device according to claim 4 is characterized in that, also is provided with protuberance between described substrate and described slide block, and this protuberance is used for the joint of auxiliary described first limiting section and described second limiting section.

9, safety-door device according to claim 8 is characterized in that, described protuberance is the projection that is formed on the upper surface of described substrate between the described breach.

10, safety-door device according to claim 8 is characterized in that, described protuberance is to be formed on the lower surface of described slide block and the projection between the described breach of correspondence.

11, safety-door device according to claim 1 is characterized in that, an end of described elastic component is connected with described skewback by being formed at projection on the described skewback or shrinkage pool or hook.

12, safety-door device according to claim 1 is characterized in that, described elastic component is stage clip or tension spring.

13, a kind of safety-door device that is used for socket, but comprise substrate, with the slide block and the elastic component of substrate slide relative, wherein,

Described substrate is provided with a plurality of breach corresponding with the jack shape;

Described slide block comprises at least two skewbacks with inclined-plane, described inclined-plane be provided so that when an insert when described at least two inclined-planes move down, described slide block can be pushed and move along the direction of described relatively notch geometry;

Be respectively equipped with limit element between described substrate and the described skewback and between each skewback, in order to limit the range of movement of the relative substrate of skewback;

One end of at least one described elastic component is connected with described two skewbacks at least, and is configured such that described at least two skewbacks cover described breach under the inactive state of described elastic component.

14, safety-door device according to claim 13, it is characterized in that, described slide block comprises first skewback and second skewback that is slidingly installed with substrate, and the main skewback and the secondary skewback that are slidingly installed and can move perpendicular to the moving direction of first skewback and second skewback with substrate.

15, safety-door device according to claim 14 is characterized in that, the inclined-plane of first skewback and second skewback is oppositely arranged, and the inclined-plane of main skewback and secondary skewback is oppositely arranged.

16, safety-door device according to claim 15 is characterized in that, the inclined-plane of main skewback and secondary skewback is set to intermeshing engaging tooth.

17, safety-door device according to claim 16 is characterized in that, substrate, first skewback and the nested setting of second skewback also are provided with the breach corresponding with the jack shape on first skewback and second skewback.

18, safety-door device according to claim 17 is characterized in that, main skewback and secondary skewback are arranged between first skewback and second skewback.

19, safety-door device according to claim 18 is characterized in that, described substrate is fixedlyed connected with one of second skewback with first skewback.

20, safety-door device according to claim 19 is characterized in that, described substrate is fixedlyed connected with shrinkage pool or draw-in groove by projection with one of second skewback with first skewback.

21, according to the arbitrary described safety-door device of claim 13-20, it is characterized in that, described limit element comprises first skewback and the first spacing limiting section of second skewback, and to main skewback and the second spacing limiting section of secondary skewback, wherein, described first limiting section is formed on substrate, first skewback and second skewback respectively and can be bonded with each other, and described second limiting section is formed on first and/or second skewback and main skewback and the secondary skewback respectively and can be bonded with each other.

22, safety-door device according to claim 21 is characterized in that, described first limiting section is pieceable at least one projection and the otch that is formed on substrate, first skewback and second skewback.

23, safety-door device according to claim 21 is characterized in that, described second limiting section comprises pieceable at least one projection and the otch that is formed on first and/or second skewback and main skewback and the secondary skewback.

24, safety-door device according to claim 23, it is characterized in that, but described second limiting section also comprises the abutment surface that makes mutual butt between the first/the second skewback and main skewback and the secondary skewback, and when insert correctly inserted, this abutment surface was separated from each other.

25, safety-door device according to claim 14 is characterized in that, an end of at least one described elastic component is connected with described skewback by being formed on projection on described first skewback and second skewback or shrinkage pool or hook.

26, safety-door device according to claim 25 is characterized in that, also is provided with another elastic component that an end is connected with substrate.

27, safety-door device according to claim 26 is characterized in that, an end of described another elastic component is connected with described substrate by being formed on projection on the described substrate or shrinkage pool or hook.

28, safety-door device according to claim 13 is characterized in that, described elastic component is stage clip or tension spring or torsion spring.

29, a kind of safe socket comprises loam cake that is provided with jack and the pedestal that flexibly connects with described loam cake, is provided with the conducting strip corresponding to described jack on this pedestal, it is characterized in that,

Between described loam cake and described pedestal, also be provided with arbitrary described safety-door device according to claim 1-28.

30, safe socket according to claim 29 is characterized in that, cover on described also be provided with described at least two skewbacks on be connected the loam cake location division that the projection of described elastic component one end or shrinkage pool or hook are oppositely arranged.

31, safe socket according to claim 30 is characterized in that, described loam cake location division is the madial wall of loam cake or from the last lid top wall inner loam cake projection that protrudes out formation of lid upwards.

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