CN101980404B - Bipolar socket protection door - Google Patents
Bipolar socket protection door Download PDFInfo
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- CN101980404B CN101980404B CN 201010559371 CN201010559371A CN101980404B CN 101980404 B CN101980404 B CN 101980404B CN 201010559371 CN201010559371 CN 201010559371 CN 201010559371 A CN201010559371 A CN 201010559371A CN 101980404 B CN101980404 B CN 101980404B
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Abstract
The invention discloses a bipolar socket protection door, which comprises a cover plate, a pressure plate, a first spring, a second spring, a first door and a second door, wherein the first door is provided with a first bevel door leaf and a second plane door leaf; the second door is provided with a second bevel door leaf and a second plane door leaf; the first and second doors are arranged in a staggered way; the first bevel door leaf and the second plane door leaf are superposed; the second bevel door leaf and the first plane door leaf are superposed; and the first and second doors can slide along a guide direction respectively and are not linked. The novel bipolar socket protection door in the invention has the advantages of very high safety grade and very high use reliability.
Description
Technical field
The present invention relates to a kind of electric accessories, be specifically related to a kind of industry, civil buildings socket, particularly a kind of the two poles of the earth socket protective door.
Background technology
Supply socket is the low-voltage electrical apparatus that is widely used in industry, building, and it comprises fixed socket and movable socket.According to national electrical standard; the socket that is installed in height below 1.8 meters should adopt shutter; preventing the undesired insertion socket of non-plug thing or to touch electrode and cause the electric leakage accident, this accident such as children are because of curious or play finger or conducting objects insertion socket are got an electric shock.Requirement below 1.8 meters from the national standard defined; overwhelming majority supply sockets all must have shutter, on the wall building electric apparatus socket of the industrial electrical equipment socket, fixed installation that these sockets comprise the equipment of being fixedly mounted on or facility, are used for the movable socket of various different occasions.
One class prior art such as the patent No. are the Chinese utility model patent of CN200720148823.4; it is provided with safety screen (being shutter) at the jack of supply socket; without plug insertion socket the time; safety screen can be automatically covers the jack of socket so that non-plug thing (such as finger) thus can not touch the effect that electrode in the jack has played safeguard protection.Yet, when plug firmly inserts the jack of socket, described safety screen can be forced to open, so that plug normally inserts jack with jack in electrode contact, this safe baffle structure is very unreliable and brought following problem: when child plays when conducting objects firmly inserted jack, safety screen also can be forced to open, the conducting objects of non-plug still can insert easily jack and with jack in electrode contact, thereby still can cause security incident.In addition; the prior art document of the above-mentioned type also exist and can't realize " single insert safety protection function " defective; namely when non-plug thing inserts a jack of double-pole socket; the safety screen of CN200720148823.4 patented technology can be opened; therefore this structure does not play barrier effect to the one pole insert, and this causes this type of prior art thereby its safe class very low." single safety protection function of inserting " described here refers to: when non-plug thing firmly inserts a jack of double-pole socket, because the shutter on this jack suffers restraints and can not be forced to open; When the plug with a plurality of pins normally inserts socket because a plurality of pins insert a plurality of jacks simultaneously, can be forced to so the shutter of each jack is unfettered open, each pin that makes plug can insert jack and with jack in electrode contact.This shows; single slotting safety protection function has improved the Electrical Safety protection class of socket greatly; its principle is: the situation majority that non-plug thing inserts jack belongs to single situation of inserting, no matter be that child plays or other reason, the probability that a plurality of non-plug things insert jack simultaneously is minimum.
The Chinese utility model patent of patent No. CN200520117393.0, CN200920195096.6 discloses a class with single shutter structure of inserting the supply socket of safety protection function, and they all have following technical characterictic: at first be that shutter is single layer structure.Wherein the CN200520117393.0 prior art is simple gate single ply protective structure, and the CN200920195096.6 prior art is two-door single ply protective structure, and namely above two documents are the single ply protective structure.So-called simple gate refers to only have the shutter of a movement; and the two-door shutter that refers to two movements; and single layer structure refers to that two moving doors are in same layer; equally matched overlapping two-layer protection; wherein the simple gate single layer structure moving door and jack edge form a crack between a door and its frame; and crack between a door and its frame of formation between two moving doors of two-door single layer structure; this crack between a door and its frame and jack are straight-through; if the hard conducting objects with apicule is inserted from crack between a door and its frame; still crack between a door and its frame can be squeezed wide and make electrode contact in conducting objects and the jack, this also is danger close.Obviously, no matter by the shutter of simple gate, the two-door or multi-door single layer structure that forms, all have following major defect: at first be that safety protection function still can not be satisfactory, its class of security protection is still lower in other words; Next be realize single insert safety protection function all essential single seesaw structure and cover plate barrier structure by moving door realize; so-called seesaw structure; refer to that moving door has the tilting function as seesaw; namely when of moving door is subject to single interpolated pressure of inserting; the other end perk of moving door; so-called cover plate barrier structure refers to stop in single that projection that is set up on the cover board of inserting moving door perk in the situation; movement by this stop limits moving door; thereby single insert of inserting can not be inserted in the jack smoothly, to avoid the electrode contact in non-plug thing and the jack.Yet the defective of this cover plate barrier structure is part processing and Product Assembly debug difficulties, and production cost is high, and dependability is poor.So-called dependability, refer to insert in the situation single, described barrier structure can reliably stop the also movement of moving-limiting door, and in the normal situation about inserting of plug, described barrier structure can reliably break away from and guarantee the flexible movement of moving door, puts in place so that the pin of plug inserts smoothly.In order to guarantee dependability, in the part course of processing, need the form and position tolerance of strict control cover plate, moving door and base, will improve processing cost and will control form and position tolerance.In order to guarantee dependability, when assembling, need debug cover plate, moving door and base three's cooperation, well-known, it is much more difficult that the debugging three cooperates than debugging both to cooperate, and when taking a lot of work, be unfavorable for enhancing productivity.In production reality, because the difficulty of part when processing control morpheme error and the difficulty of Installation and Debugging, the reliability of use that often can not fine this series products of assurance, thus bring poor performance and awkward defective to product.
Summary of the invention
The object of the invention is to overcome the defective of above-mentioned prior art; novel the two poles of the earth socket protective door that a kind of class of security protection is high, dependability is good, simple and reasonable, be easy to manufacture is provided; this the two poles of the earth socket protective door can prevent that the one pole latch from inserting; and can prevent the insertion of code test probe, two pole sockets that the two poles of the earth latch is inserted smoothly.It has following remarkable advantage: do not link mutually owing to adopted between two-door double-decker and two moving doors, so stopped single slotting potential safety hazard, make the safe class of product high especially; Two shutter structures of utilizing cross-interleaved of the present invention to arrange can not rely on the safety protection function of the anti-single slotting accident of complete independently in the situation of seesaw principle.The present invention has also specialized on the basis of the two shutter structures of cross-interleaved layout and has implemented how can specific implementation utilize seesaw to carry out the concrete structure scheme of duplicate protection in the two-door protection structure of cross-interleaved; the barrier structure of this scheme can be arranged on the pressing plate; so not only greatly improved dependability; but also greatly optimized structure, advantages of simple, product are easy to make to make structure become very.
To achieve these goals, the present invention has adopted following technical scheme.A kind of the two poles of the earth socket protective door; it comprises cover plate, pressing plate, first, second, act on first upper and to first the first spring that plays reset response, act on second upper and to second the second spring that plays reset response, and a cover plays the shutter guide and limit mechanism of guide and limit effect to first, second motion.
Described first comprises the first inclined-plane door leaf and the first plane door leaf, and described second comprises the second inclined-plane door leaf and the second plane door leaf; Described the first inclined-plane door leaf and the second plane door leaf side that exists together, described the second inclined-plane door leaf and the first plane door leaf are in opposite side together.Do closing motion with second guide direction L that under the active force of the first spring, the second spring, limits along the shutter guide and limit mechanism for described first, and after the closure first becomes cross one another and is crisscross arranged with second.Described be crisscross arranged specifically arranges in the following manner: two superimposed setting about the first described first the inclined-plane door leaf after the closure becomes with the second plane door leaf of second, and the first inclined-plane door leaf be positioned at the second plane door leaf above; The second described second inclined-plane door leaf after the closure becomes up and down two superimposed setting with the first plane door leaf of first, and the second inclined-plane door leaf be positioned at the first plane door leaf above.There is not mutual interaction relation between described first and second.Adopt the technical scheme of above-mentioned staggered designs can prevent that the one pole latch from inserting two pole sockets that the two poles of the earth latch is inserted smoothly: when bipolar latch inserts, fork at first touches the first inclined-plane door leaf of first and the second inclined-plane door leaf of second, stressed rear the generation respectively in two inclined-planes drives first, second actuating force of outwards opening, two shutters are all done to both sides according to guide direction L opened movement, the design on one plane, one inclined-plane, two shutter left and right sides, guaranteed to only have when two shutters are stressed, two shutters of jack below can be opened; And when only having one pole to insert, can only open this one pole jack below with the shutter on inclined-plane, and the below also has the shutter on another sheet shutter band plane not to be opened, plug can not continue to enter again; After plug is extracted, lower pair of the effect of spring shutter is closed.
On the protection scheme basis of the above-mentioned design that is overlapping, the present invention namely increases following second layer protection structure with seesaw principle at the protection scheme that a kind of dual fail-safe also is provided on the basis of the above-mentioned formula protection scheme that is overlapping:
Described shutter guide and limit mechanism comprises the first gusset, the second gusset, does closed action along the first gusset for described first under the effect of the first spring, does closing motion along the second gusset for described second under the effect of the second spring; Described the first gusset can be that a gusset also can be to be made of one group of parallel gusset, and it also can be that one group of parallel gusset consists of that described the second gusset can be comprised of a gusset.Described first straddles on the first gusset, and described the first inclined-plane door leaf, the first plane door leaf are respectively in the first gusset both sides, and can do seesaw movement take the first gusset as fulcrum; Described second straddles on second group of gusset, and described the second inclined-plane door leaf, the second plane door leaf are respectively in the second gusset both sides, can do seesaw movement take the second gusset as fulcrum.
Described shutter guide and limit mechanism also comprises the first door limiting boss that limits first motion and the second door limiting boss that limits second motion, and two door limiting boss can be arranged on pressing plate or the cover plate; First blocking surface corresponding with the first door limiting boss is arranged on described the first inclined-plane door leaf, second blocking surface corresponding with the second door limiting boss is arranged on described the second inclined-plane door leaf; When the blocking surface on the corresponding shutter with it of positive stop lug boss contacted or collides, described shutter remained closed the position and no longer does and open motion.
The height of described the first door limiting boss satisfies following two conditions: when doing the motion of seesaw whereabouts when being subject to single interpolated pressure of inserting on the first inclined-plane door leaf, described the first door limiting boss can contact with the first blocking surface and stop the first inclined-plane door leaf to be done opens motion; When the first inclined-plane door leaf, when the first plane door leaf is in the seesaw poised state, described the first door limiting boss does not contact and the first inclined-plane door leaf is not risen with the first blocking surface on the first inclined-plane door leaf and stops position-limiting action, described first when opening, the first door limiting boss can not stop first and open.Be slightly larger than second the thickness of the second plane door leaf such as the height of the first door limiting boss that is positioned at described pressing plate to satisfy above-mentioned two conditions.
The height of described the second door limiting boss satisfies following two conditions: when doing the motion of seesaw whereabouts when being subject to single interpolated pressure of inserting on the second inclined-plane door leaf, described the second door limiting boss can contact with the second blocking surface and stop the second inclined-plane door leaf to be done opens motion; When the second inclined-plane door leaf and the second plane door leaf are in the seesaw poised state, described the second door limiting boss does not contact and the second inclined-plane door leaf is not risen with the second blocking surface on the second inclined-plane door leaf and stops position-limiting action, described second when opening, the second door limiting boss can not stop first and open.Be slightly larger than first the thickness of the first plane door leaf such as the height of the second door limiting boss that is positioned at described pressing plate to satisfy above-mentioned two conditions.
After repeatedly reaching a large amount of experimental studies; the present invention successfully is dissolved into the formula protection that is overlapping for the seesaw-type protection; obtain a kind of protected mode of dual fail-safe; make its reliability more improve a step, the two poles of the earth socket protective door of this two pole sockets can not only prevent the insertion of one pole latch, code test probe.Described shutter guide and limit mechanism all can be preferably mounted on the pressing plate under this design; rather than some prior art of picture with the barrier element placement on the cover board, and for example the first gusset of described shutter guide and limit mechanism (32b and 34b), the second gusset (32a and 34a), the first door limiting boss (38a) and described the second door limiting boss (36b) are installed in the upper reliability with the more protection door of pressing plate (3).
In addition, and movement locus when opening closed for better control shutter, shutter guide and limit mechanism of the present invention can be done following design: described shutter guide and limit mechanism also comprises right web plate, left gusset except the first gusset, the second gusset; The first gusset, the second gusset is parallel with right web plate and surround right cavity, and described right cavity holds, and the first gusset, the second gusset is parallel with left gusset and surround left cavity; Described first, second guide direction L that limits along the first gusset, the second gusset, right web plate and left gusset in right cavity and left cavity does to slide and moves.
The first spring, the second spring can be placed in the shutter guide and limit mechanism by following structure: described the first gusset is made of two gusset 32b and 34b, be first group of gusset mentioning in the specific embodiment, between two gusset 32b of described the first gusset and 34b, formed the first groove 33b; Two gussets consisted of by two gusset 32a and 34a, second group of gusset namely mentioning in the specific embodiment forms the second groove 33a between two gusset 32a of described the second gusset and the 34a; Described the first spring 2b installs in the first groove 33b, and the end of the first spring 2b is connected with pressing plate 3, and the other end of the first spring 2b is connected with first 4; Described the second spring 2a installs in the second groove 33a, and the end of the second spring 2a is connected with pressing plate 3, and the other end of the second spring 2a is connected with second 6.
For can the reasonable Arrangement element when two shutters are crisscross arranged and make first, second with shutter guide and limit mechanism cooperating better, be provided with the first gathering sill 4b and the first recess 4c between the first described first 4 inclined-plane door leaf 41 and the first plane door leaf 42; Be provided with the second gathering sill 6a and the second recess 6c between the second described second 6 inclined-plane door leaf 61 and the second plane door leaf 62.Staggered combination by the first recess 4c and the second recess 6c realizes first 4 and second 6 interlaced setting and overlaps.
Should leave the space between the two everys fan that is crisscross arranged, particularly the shutter with the seesaw double protection structures should leave corresponding space.The first described first 4 inclined-plane door leaf 41 and the second plane door leaf 62 of second 6 are positioned at right cavity 37, are leaving respectively the space above the first inclined-plane door leaf 41 with below the second plane door leaf 62; The second described second 6 inclined-plane door leaf 61 and the first plane door leaf 42 of first 4 are positioned at left cavity 36, are leaving respectively the space above the second inclined-plane door leaf 61 with below the first plane door leaf 42.
In addition; for the two poles of the earth of the present invention socket protective door can also be realized at the socket function element (120 molded breadth degree are 22mm) of present domestic minimum; the minimum dimension that overcomes present home products causes the inadequate problem in space of the horizontal or vertical activity of shutter to the restriction of shutter; the activity direction of shutter of the present invention be not traditional up and down vertical movable or about vertical movable; so adopt tilting movable, make effect more.Described guide and limit mechanism is to first, second guide direction L and the not parallel any sidewall that also is not orthogonal to pressing plate, and the sidewall of described guide direction L and pressing plate forms an acute rake angle α.Form an acute angles beta between described first two side, also form the acute angles beta of an equal angular between described second two side; Relation between the described acute rake angle α that the sidewall of described acute angles beta, guide direction L and the pressing plate that forms between first, second two side forms is: α and the complementation of β angle; and 45 ° 〉=α＞0 °; move along guide direction L under the effect of shutter guide and limit mechanism such as shutter; form the acute rake angle α of 10 °, 15 °, 30 ° or 45 ° between the short sidewall of described guide direction L and pressing plate, thereby shortened the width of socket.If but product function part size is enough, the activity of shutter also can be traditional above-below direction, and namely the α angle is 0 ° and the β angle is 90 °.
Description of drawings
Fig. 1 is the structural representation of coverplate parts of an embodiment of novel the two poles of the earth of the present invention socket protective door.
Fig. 2 is the structural representation of main element of an embodiment of novel the two poles of the earth of the present invention socket protective door, and the shutter among the figure is in normal closed condition (closure state).
Fig. 3 is the structural representation of main element of an embodiment of novel the two poles of the earth of the present invention socket protective door, and the shutter among the figure is in improper list and inserts state.
Fig. 4 is the structural representation of main element of an embodiment of novel the two poles of the earth of the present invention socket protective door, and the shutter among the figure is in the opening-wide state (open mode) in normal two slotting situations.
Fig. 5 is the decomposing schematic representation of the main element of an embodiment of novel the two poles of the earth socket protective door of the present invention.
Fig. 6 is main element mutual alignment and the annexation schematic diagram of an embodiment of novel the two poles of the earth of the present invention socket protective door.
Fig. 7 and Fig. 8 are respectively the inclined-plane door leaf of an embodiment of novel the two poles of the earth of the present invention socket protective door and sectional view and the force analysis figure of plane door leaf.
Embodiment
An embodiment who provides below in conjunction with accompanying drawing further describes novel the two poles of the earth of the present invention socket protective door.Socket protective door of the present invention is not limited to following examples.
As depicted in figs. 1 and 2; novel the two poles of the earth of the present invention socket protective door comprise a cover plate 1, pressing plate 3, first spring 2b, second spring 2a, one first 4, one second 6; cover plate 1 is fixed on the pressing plate 3; form cavity between cover plate 1 and the pressing plate 3, the first spring 2b, the second spring 2a, be installed in the described cavity for first 4 and second 6.
Such as Fig. 2 and shown in Figure 5, described first 4 is provided with first an inclined-plane door leaf 41 and the first plane door leaf 42, is provided with first a gathering sill 4b and the first recess 4C between the first inclined-plane door leaf 41 of first 4 and the first plane door leaf 42.Described second 6 is provided with second an inclined-plane door leaf 61 and the second plane door leaf 62, is provided with second a gathering sill 6a and second a recess 6C between the second inclined-plane door leaf 61 of second 6 and the second plane door leaf 62.First 4 and second 6 said structure characteristics determined first 4 and second 6 can assemble by the following method.At first be the staggered combination by the first recess 4C and the second recess 6C, can realize first 4 and second 6 with the form assembling of interlaced setting; So-called interlaced setting, refer to the middle part (being the recess position) at first 4 and second, first 4 and second 6 staggered, so that the first inclined-plane door leaf 41 of first 4 is positioned on the second plane door leaf 62 of second 6, the second inclined-plane door leaf 61 of second 6 is positioned on the first plane door leaf 42 simultaneously.Next is the staggered combination by the first recess 4C and the second recess 6C, can realize that the second plane door leaf 62 of the first inclined-plane door leaf 41 of first 4 and second 6 assembles with the form of overlapped setting with the first plane door leaf 42 of first 4 with the form assembling of overlapped setting, the second inclined-plane door leaf 61 of second 6; So-called overlapped setting; refer under shutter is in closed condition; described the first inclined-plane door leaf 41 and the second plane door leaf 62 are overlapping; and the first inclined-plane door leaf 41 be positioned at the second plane door leaf 62 above; described the second inclined-plane door leaf 61 and the first plane door leaf 42 are overlapping, and the second inclined-plane door leaf 61 be positioned at the first plane door leaf 42 above.The 3rd is by the first gathering sill 4b and the second gathering sill 6a, can realize that first 4 and second 6 are installed on the pressing plate 3 jointly, and first 4 and second 61 can be respectively at first group of gusset (32b, 34b) with second group of gusset (32a, 34a) the upper slip, namely first 4 and second 6 each self energys are slided along the guide direction L that first group of gusset, second group of gusset limit, but do not link mutually between first 4 and second 6.So-called along guide direction L slip, refer to that can make positive and negative both direction in the direction of guide direction L for first 4 slides, and also can make positive and negative both direction in the direction of guide direction L for second 6 and slide.What is called does not link mutually, refers to: first 4 and second 6 do not have interaction relation; When first 4 is slided, not necessarily slide for second 6 or glide direction does not depend on first 4; When second 6 is slided, not necessarily slide for first 4 or glide direction does not depend on second 6.Be not difficult to draw from above-mentioned explanation; the safe class of the of the present invention novel the two poles of the earth socket protective door that has adopted first 4 and second 6 of said structure and assembled as stated above is high especially; its reason just is to have adopted two-door bilayer, cross-interleaved is overlapping and the mutual architectural feature that does not link and assemble method; so that single interpolated pressure of inserting namely enables the inclined-plane door leaf (41 or 61) above the forced opening, but its plane door leaf (42 or 62) below must not forced opening.
Fig. 7 is the sectional view of the first inclined-plane door leaf 41 of first 4, and it also is the cutaway view that dissects along guide direction L.As seen from Figure 7, two shop fronts (c and d) of the first inclined-plane door leaf 41 of first 4 form wedge shape, when the inserts such as pin of plug apply interpolated pressure F to shop front c, because shop front c and direction of insertion out of plumb, and shop front c and first 's 4 glide direction (being guide direction L direction) is not parallel, so interpolated pressure F must produce a component F1 who acts on shop front c, the direction of this component F1 is parallel with guide direction L, slide along guide direction L direction when enough promoting the first inclined-plane door leaf 41 in the large situation at component F1, thereby force the first inclined-plane door leaf 41 to open.In like manner, because two shop front (not shown)s of the second inclined-plane door leaf 61 of second 6 also are to form wedge shape, so when the interpolated pressure of the inserts such as plug enough greatly the time, also can force 61 unlatchings of the second inclined-plane door leaf.
Fig. 8 is the sectional view of the second plane door leaf 62 of second, and it also is the cutaway view that dissects along guide direction L.As seen from Figure 7, two shop front (e of the second plane door leaf 62 of second 6, f) be parallel to each other, when the inserts such as pin of plug apply interpolated pressure F to shop front e, because the direction of interpolated pressure F is vertical with shop front e, and insertion force F is also vertical with guide direction L, so insertion force F does not produce component on second 6 glide direction (being guide direction L direction), that is to say that no matter interpolated pressure F is much it all can not force the second plane door leaf 62 to open.In like manner, because two shop front (not shown)s of the first plane door leaf 42 of first 4 also are parallel to each other, thus much no matter the interpolated pressure F of the inserts such as plug has, all can not force the first plane door leaf 42 to open.
Be not difficult to draw the conclusion of following relevant technologies effect from top explanation about Fig. 7, Fig. 8 and force analysis: because the first inclined-plane door leaf 41 and the second plane door leaf 62 overlap, so insert in the situation single, even interpolated pressure F forced opening be in the first top inclined-plane door leaf 41, but can not be in the second following plane door leaf 62 by forced opening; In like manner because the second inclined-plane door leaf 61 and the first plane door leaf 42 overlap, so in single slotting situation, even interpolated pressure F forced opening be in the second top inclined-plane door leaf 61, but can not be in the first following plane door leaf 42 by forced opening.This shows that the two-door double-decker that overlaps of the present invention is by there being very high anti-list to insert the class of security protection of accident.
Referring to Fig. 5, Fig. 6, be provided with cavity in the described pressing plate 3, be provided with first group of gusset (32b and 34b), second group of gusset (32a and 34a), right web plate 31, left gusset 35, the first door limiting boss 38a, the second door limiting boss 36b in the cavity, these gussets and boss are integrally formed with pressing plate 3 respectively.First group of gusset 32b (namely the right side in first group of gusset is the piece gusset), second group of gusset 32a (i.e. that piece gusset on the right side in second group of gusset) surround right cavity 37, the first inclined-plane door leafs 41 with right web plate 31 and the second plane door leaf 62 is in the right cavity 37 and in right cavity 37 interior movements.First group of gusset 34b (i.e. that piece gusset in the left side in first group of gusset), second group of gusset 34a (i.e. that piece gusset of left side in second group of gusset) surround left cavity 36, the second inclined-plane door leafs 61 with left gusset 35 and the first plane door leaf 42 is in the left cavity 36 and in left cavity 36 interior movements.Form the first groove 33b between two gussets of first group of gusset (32b and 34b), form the second groove 33a between two gussets of second group of gusset (32a and 34a).The first door limiting boss 38a is positioned at right cavity 37, the second door limiting boss 36b and is positioned at left cavity 36.First group of gusset (32b and 34b), second group of gusset (32a and 34a), right web plate 31, left gusset 35 are parallel to each other with guide direction L respectively.The first spring 2b is installed in the first groove 33b, and its end is connected with pressing plate 3, and its other end is connected with first 4.The second spring 2a is installed in the second groove 33a, and its end is connected with pressing plate 3, and its other end is connected with second 6.Such installation of the first spring 2b and the second spring 2a, so that the elastic force of the first spring 2b and the second spring 2a orders about respectively first 4 and second 6 slide in opposition and autoshutdown, the glide direction that the namely elastic force of the first spring 2b driving is first 4 is opposite with the glide direction that the second spring 2a orders about second 6, and in the situation without interpolated pressure, the elastic force of the first spring 2b and the second spring 2a drives respectively first 4 and second 6 slide in opposition so that first 4 and second 6 automatic overlapping closing.This shows, if interpolated pressure F will open the first inclined-plane door leaf 41 (or second inclined-plane door leaf 61), must meet the following conditions: the component F of interpolated pressure F on guide direction L direction
1, greater than the elastic force of the first spring 2b (or second bullet 2a).Satisfy F power under this condition be exactly the front F power reached enough large condition.The first gathering sill 4b on described first 4 is installed on first group of gusset (32b and 34b) of pressing plate 3 by the mode that rides, because first group of gusset (32b and 34b) be parallel with guide direction L, so be installed in the direction slip of on first group of gusset (32b and 34b) first the 4 guide direction L that can limit along first group of gusset (32b and 34b).The second gathering sill 6a on described second 6 is installed on second group of gusset (32a and 34a) by the mode that rides, and in like manner this mounting means also can make the direction of second 6 guide direction L that limits along second group of gusset (32a and 34a) slide.The first inclined-plane door leaf 41 of first 4 installing by the above-mentioned mode that rides and the second plane door leaf 62 of second 6 are positioned at the right cavity 37 of pressing plate 3, and the first plane door leaf 42 of 61 and first 4 on the second inclined-plane of second 6 fan is positioned at the left cavity 36 of pressing plate 3.Leaving respectively the space above the first inclined-plane door leaf 41 with below the second plane door leaf 62, refer to the space between the first inclined-plane door leaf 41 and the cover plate 1 in a little spaces above described, the space of below refers to the space between the second plane door leaf 62 and the pressing plate 3, and described space is necessary for the first inclined-plane door leaf 41 and the second plane door leaf 62 in right cavity 37 interior flexible movements.Leaving respectively the space above the second inclined-plane door leaf 61 with below the first plane door leaf 42, the space of top described herein refers to the space between the second inclined-plane door leaf 61 and the cover plate 1, the space of described below refers to the space between the first plane door leaf 42 and the pressing plate 3, and the flexible movement in left cavity 36 is necessary and described space is for the second inclined-plane door leaf 61 and the first plane door leaf 42.
As seen from Figure 5, be provided with the first door limiting boss 38a in the right cavity 37 on pressing plate 3, the first door limiting boss 38a cooperates with the first blocking surface 4a on the first inclined-plane door leaf 41 of first 4, is used for stoping the first inclined-plane door leaf 41 to move along the direction of guide direction L when the first inclined-plane door leaf 41 runs into undesired insertion failure condition.The height of described the first door limiting boss 38a is slightly larger than the thickness of the second plane door leaf 62 of first 6, and meet the following conditions:---under normal circumstances, described the first door limiting boss 38a does not contact with the first blocking surface 4a on the first inclined-plane door leaf 41 of first 4, although this be because the thickness of the second plane door leaf 62 below the first inclined-plane door leaf 41 less than the height of the first door limiting boss 38a, but below the second jib door fan 62, leave the space, the thickness sum of this gap thickness and the second plane door leaf 62 is greater than the height of the first door limiting boss 38a, so the blocking surface 4a on the first inclined-plane door leaf 41 on the second plane door leaf 62 can not contact with the first door limiting boss 38a;---the first inclined-plane door leaf 41 of first be subject to single interpolated pressure of inserting and do to stick up motion fall action the time, described the first door limiting boss 38a and the first blocking surface 4a on the first inclined-plane door leaf 41 contact and stop the slip of the first inclined-plane door leaf 41, its principle is because leave the space below the second plane door leaf 62, when being subject to single interpolated pressure of inserting on the first inclined-plane door leaf 41, this interpolated pressure pushes the first inclined-plane door leaf 41 to lower swing, and push the second plane door leaf 62 to lower swing, this swing is referred to as to stick up the action that falls of motion, because falling, this moves so that the spaces below the second plane door leaf 62 diminish (even being 0), when the thickness sum of the thickness in this space that has diminished and the second plane door leaf 62 during less than the height of the first door limiting boss 38a, the first door limiting boss 38a and the first blocking surface 4a on the first inclined-plane door leaf 41 contact and stop the slip of the first inclined-plane door leaf 41.Be provided with the second door limiting boss 36b in the left cavity 36 on pressing plate 3, the second door limiting boss 36b cooperates with the second blocking surface 6b on the second inclined-plane door leaf 61 of second 6, is used for running at the second inclined-plane door leaf 61 stoping the second inclined-plane door leaf 61 to slide along the direction of guide direction L when abnormal list is inserted situation.The thickness of the first plane door leaf 42 that the height of described the second door limiting boss 36b is bigger first 4, and satisfy with two conditions:---under normal circumstances, the second blocking surface 6b of the second inclined-plane door leaf 61 of described the second door limiting boss 36b and second 6 does not connect (its principle is identical with the principle of foregoing the first door limiting boss 38a);---the second inclined-plane door leaf 61 of second 6 be subject to single interpolated pressure of inserting and do to stick up motion fall action the time, described the second door limiting boss 36b and the second blocking surface 6b on the second inclined-plane door leaf 61 contact and stop the slip of the second inclined-plane door leaf 61, (its principle is identical with the principle of foregoing the first door limiting boss 38a).To sum up explanation; in fact the structure of the pressing plate 3 of novel the two poles of the earth of the present invention socket protective door comprises two schemes; wherein the first scheme is the embodiment that is provided with the first door limiting boss 38a and the second door limiting boss 36b shown in the drawings; first scheme is the unshowned situation of not establishing the first door limiting boss and the second door limiting boss of accompanying drawing, and this two schemes respectively has characteristics.The characteristics of the first scheme are that class of security protection is high, and it has twice to prevent single defence line of inserting accident: the first line of defence is exactly to utilize the architectural feature of the first door limiting boss 38a and the second door limiting boss 36b so that single interpolated pressure F that inserts can not forced opening be in the first inclined-plane door leaf 41 or the second inclined-plane door leaf 61 of top position; The second defence line is exactly to have utilized first 4 and second 6 architectural features that are parallel to each other for two shop fronts of the double layer double door that do not link mutually and two plane door leafs, so that single interpolated pressure F that inserts can not forced opening the first plane door leaf 42 or the second plane door leaf 62.First scheme only has the defence line one, namely having utilized first 4 and second 6 is the architectural feature that is parallel to each other between two shop fronts of the mutual double layer double door that does not link and two plane door leafs, even so that first inclined-plane door leaf 41 or the second inclined-plane door leaf 61 of single interpolated pressure F that inserts above having opened, but its first plane fan 42 or second plane door leaf 62 below still can not forced opening.Obviously, first scheme sticks up motion principle and barrier structure than the first scheme owing to having saved, so have simple in structure and normally plug easily advantage, but anti-single grade of inserting accident is not as the first scheme, but it still has the security performance that very high anti-list is inserted accident.Referring to Fig. 5; the first door limiting boss 38a of the barrier structure of novel the two poles of the earth of the present invention socket protective door and the second door limiting boss 36b are respectively formed on the pressing plate 3; compare with the boss setting feature on the cover board of prior art, barrier structure of the present invention has obvious advantage.At first be the handling ease of boss, the requirement of the fine assurance form and position tolerance of energy, thus production efficiency is high, low cost of manufacture.Next is that Installation and Debugging are easy, has avoided the installation of cover plate on the impact of barrier structure, thereby has greatly improved dependability.
The first spring 2b and the second spring 2a of embodiment shown in the drawings are stage clip, but the first spring 2b of novel the two poles of the earth of the present invention socket protective door and the second spring can also be a kind of in extension spring or the sheet spring, are preferably stage clip.In order to cooperate the direction of motion L of this inclination, described first both sides
Referring to Fig. 5; the shutter direction of motion is between guide direction L and the pressing plate one sidewall A angle α to be arranged; also the purposes for this angle α is the width dimensions that reduces socket; allow when larger at the width dimensions of socket; angle α can reduce; even be zero, just as the same direction of motion of prior art parallel or vertical with sidewall A.When the width dimensions of socket requires hour, angle α can add the greatly acute angle of an inclination.In order to cooperate the direction of motion L of this inclination, also make an acute angles beta between described first two side, acute angles beta and sharp angle α are supplementary angles, in like manner also make a same acute angles beta to cooperate the direction of motion of two inclinations between first two side.But more large interpolated pressure F and the F component F on guide direction L direction that more can strengthen of α
1Ratio, thereby so that plug operation is hard.Thereby in traditional scheme, angle α is 0 °; When needs reduced width dimensions, angle α scope can be 0 °～45 °, and angle α is the smaller the better in the situation of space permission.α can be set as the acute angle of 5 ° or 10 ° when slightly wide such as existing width, in order to satisfy the design needs to width; When needs further shorten width, sharp angle α can be set as 20 °, 30 °, 40 ° or 45 °.
Referring to Fig. 1 and Fig. 5, be provided with right socket 1a and left socket 1b at cover plate 1, the pin that is used for plug inserts shutter from this left and right socket (1b, 1a).Be provided with right jack 3a and left jack 3b at cover plate 3, left and right jack (3b, 3a) is facing to left and right socket (1b, 1a), when two pins of plug insert from left and right socket (1b, 1a) respectively and through open second 6 and first 4 after, pass through again on the electrode (not shown) in the socket shell (not looking out among the figure) that can be inserted into behind the left and right jack (3b, 3a) below the pressing plate 3.The second inclined-plane door leaf 61 of the present invention and the first plane door leaf 42 are in off position the time, two door leafs have all covered in respectively left socket 1b and left jack 3b with the form that overlaps, and make at the normal closed condition slotting insert that places an order to utilize crack between a door and its frame to be inserted in the socket.In like manner the first inclined-plane door leaf 41 and the second plane door leaf 62 are in off position the time, and two door leafs have all covered in respectively right socket 1a and right jack 3a with the form that overlaps, and make at the normal closed condition slotting insert that places an order to utilize crack between a door and its frame to be inserted in the socket.
Further describe the operation principle of novel the two poles of the earth of the present invention socket protective door below in conjunction with Fig. 2, Fig. 3, Fig. 4, Fig. 5.
Of the present invention novel the two poles of the earth socket protective door shown in Figure 2 is in the state of normally closing; the first shutter 4 and the second shutter 6 have all hidden left jack 3b and right jack 3a on the pressing plate 3 with the form that overlaps; and the electrode (not shown) that faces toward with left and right jack (3b, 3a) below the pressing plate 3, thereby the first shutter 4 and the second shutter 6 are enclosed in described electroplax in the socket shell (not shown) below the pressing plate 3.
At two pins of normal plug simultaneously and insert respectively in the situation of left socket 1b on the cover plate 1 and right socket 1a, two pins of plug are respectively by left, right socket (1b, 1a) also insert pressure the second inclined-plane door leaf 61 and the first inclined-plane door leaf 41, the first inclined-plane door leaf 41 and the second inclined-plane door leaf 61 are under the effect of the interpolated pressure of pin, the elastic force that overcomes respectively the first spring 2a and the second spring 2b moves to both sides, the first inclined-plane door leaf 41 followed respectively by the first plane door leaf 42 and the second plane door leaf 62 and the second inclined-plane door leaf 61 moves, make first 4 and second 6 all to be in opening, each the movement parts position under this state as shown in Figure 4.As shown in Figure 4, under first 4 and second 6 opening, left and right jack (3b, 3a) is opened wide, thereby allow two pins of plug to be inserted on the electrode (not shown) of socket (not shown) respectively the first spring 2a and second all energy storage of spring 2b under this state by left and right jack (3b, 3a).
Be in when normally closing at shutter; if when running into the insert that improper list inserts on the second inclined-plane door leaf 61; even do not open (each movement parts position as shown in Figure 3 under this opening) having to make second 6 in the inoperative situation of barrier structure or barrier structure and be forced to; first 4 still remains on closed condition so; left; right jack (3b; 3a) still covered by first the first inclined-plane door leaf 41 and the first plane door leaf 42; thereby stopped that single slotting insert continues to insert, the insert that has stoped improper list to be inserted is inserted into a left side; right jack (3b; 3a).Certainly, if when running into the insert that improper list inserts on the first inclined-plane door leaf 41, same reason also can make second 6 still to remain on closed condition, and left and right jack (3b, 3a) is still covered the second plane door leaf 62 and the first inclined-plane door leaf 61 by second 6.
Referring to Fig. 2, be provided with in the situation of barrier structure, if when running into the insert that improper list inserts on the first inclined-plane door leaf 41, what the insertion force of insert promoted that the first inclined-plane door leaf 41 does to stick up motion falls action (namely moving down), and the first blocking surface 4a on the first inclined-plane door leaf 41 is contacted with the first door limiting boss 38a, because the first door limiting boss 38a stopped the first blocking surface 4a, so that can not move and remain on original closed condition for first 4.
Claims (10)
1. the two poles of the earth socket protective door; it comprises cover plate (1), pressing plate (3), first (4), second (6), act on first (4) upper and rise reset response the first spring (2b), act on second spring (2a) of second (6) upper and its reset response; with a cover first, second motion is played the shutter guide and limit mechanism of guide and limit effect, it is characterized in that:
Described first (4) comprise the first inclined-plane door leaf (41) and the first plane door leaf (42), and described second (6) comprise the second inclined-plane door leaf (61) and the second plane door leaf (62); Described the first inclined-plane door leaf (41) and the second plane door leaf (62) side that exists together, described the second inclined-plane door leaf (61) and the first plane door leaf (42) are in opposite side together;
Under the active force of the first spring (2b), the second spring (2a), closing motion is done along the guide direction (L) of shutter guide and limit mechanism in described first (4) and second (6), and closed rear first (4) become cross one another with second (6) and are crisscross arranged;
The first inclined-plane door leaf (41) of described first (4) after the closure becomes up and down two superimposed setting with the second plane door leaf (62) of second (6), and the first inclined-plane door leaf (41) be positioned at the second plane door leaf (62) above; The second inclined-plane door leaf (61) of described second (6) after the closure becomes up and down two superimposed setting with the first plane door leaf (42) of first (4), and the second inclined-plane door leaf (61) be positioned at the first plane door leaf (42) above;
Mutually do not link between described first (4) and second (6).
2. the two poles of the earth according to claim 1 socket protective door is characterized in that:
Described shutter guide and limit mechanism comprises the first gusset (32b, 34b), the second gusset (32a, 34a), described first (4) do closed action along the first gusset (32b, 34b) under the effect of the first spring (2b), described second (6) do closing motion along the second gusset (32a, 34a) under the effect of the second spring (2a);
Described first (4) straddle on the first gusset (32b, 34b), described the first inclined-plane door leaf (41), the first plane door leaf (42) are respectively in the first gusset (32b, 34b) both sides, can do seesaw movement take the first gusset (32b, 34b) as fulcrum;
Described second (6) straddle on second group of gusset (32a and 34a), described the second inclined-plane door leaf (61), the second plane door leaf (62) are respectively in the second gusset (32a, 34a) both sides, can do seesaw movement take the second gusset (32a, 34a) as fulcrum.
3. the two poles of the earth according to claim 2 socket protective door is characterized in that:
Described shutter guide and limit mechanism comprises the first door limiting boss (38a) and the second door limiting boss (36b); First blocking surface (4a) corresponding with the first door limiting boss (38a) is arranged on described the first inclined-plane door leaf (41), second blocking surface (6b) corresponding with the second door limiting boss (36b) is arranged on described the second inclined-plane door leaf (61);
The height of described the first door limiting boss (38a) satisfies following two conditions: when doing the motion of seesaw whereabouts when being subject to single interpolated pressure of inserting on the first inclined-plane door leaf (41), described the first door limiting boss (38a) can contact and stop the first inclined-plane door leaf (41) to do and open motion with the first blocking surface (4a); When the first inclined-plane door leaf (41), when the first plane door leaf (42) is in the seesaw poised state, described the first door limiting boss (38a) does not contact with the first blocking surface (4a) on the first inclined-plane door leaf (41) and the first inclined-plane door leaf (41) is not risen and stops position-limiting action;
The height of described the second door limiting boss (36b) satisfies following two conditions: when doing the motion of seesaw whereabouts when being subject to single interpolated pressure of inserting on the second inclined-plane door leaf (61), described the second door limiting boss (36b) can contact and stop the second inclined-plane door leaf (61) to do and open motion with the second blocking surface (6b); When the second inclined-plane door leaf (61) and the second plane door leaf (62) were in the seesaw poised state, described the second door limiting boss (36b) did not contact and the second inclined-plane door leaf (61) is not risen with the second blocking surface (6b) on the second inclined-plane door leaf (61) and stops position-limiting action.
4. it is characterized in that according to claim 1 and 2 or 3 described the two poles of the earth socket protective doors:
Described guide and limit mechanism is to first, second guide direction (L) and the not parallel any sidewall that also is not orthogonal to pressing plate, and described guide direction (L) forms an acute rake angle α with the sidewall of pressing plate.
5. it is characterized in that according to claim 2 or 3 described the two poles of the earth socket protective doors:
Described shutter guide and limit mechanism also comprises right web plate (31), left gusset (35);
The first gusset (32b), the second gusset (32a) is parallel with right web plate (31) and surround right cavity (37), and the first gusset (34b), the second gusset (34a) is parallel with left gusset (35) and surround left cavity (36); Described first, second guide direction (L) that limits along the first gusset (32b), the second gusset (32a), right web plate (31) and left gusset (35) in right cavity (37) and left cavity (36) done to slide and moved.
6. it is characterized in that according to claim 2 or 3 described the two poles of the earth socket protective doors:
Described the first gusset (32b and 34b) is made of two gussets, has formed the first groove (33b) between two gussets of described the first gusset (32b and 34b); Described the second gusset (32a and 34a) is made of two gussets, forms the second groove (33a) between two gussets of described the second gusset (32a and 34a);
Described the first spring (2b) is installed in the first groove (33b), and an end of the first spring (2b) is connected with pressing plate (3), and the other end of the first spring (2b) is connected with first (4); Described the second spring (2a) is installed in the second groove (33a), and an end of the second spring (2a) is connected with pressing plate (3), and the other end of the second spring (2a) is connected with second (6).
7. according to claim 2 or 3 described the two poles of the earth socket protective doors, it is characterized in that: the first gusset of described shutter guide and limit mechanism (32b and 34b), the second gusset (32a and 34a), the first door limiting boss (38a) and described the second door limiting boss (36b) are installed on the pressing plate (3).
8. the two poles of the earth according to claim 4 socket protective door is characterized in that:
Form an acute angles beta between described first two side, also form the acute angles beta of an equal angular between described second two side; Relation between the described acute rake angle α that the sidewall of described acute angles beta, guide direction (L) and the pressing plate that forms between first, second two side forms is: α and the complementation of β angle, and 45 ° 〉=α＞0 °.
9. the two poles of the earth according to claim 5 socket protective door is characterized in that:
The first inclined-plane door leaf (41) of described first (4) and the second plane door leaf (62) of second (6) are positioned at right cavity (37), leave respectively the space in the top of the first inclined-plane door leaf (41) and the below of the second plane door leaf (62); The second inclined-plane door leaf (61) of described second (6) and the first plane door leaf (42) of first (4) are positioned at left cavity (36), leave respectively the space in the top of the second inclined-plane door leaf (61) and the below of the first plane door leaf (42).
10. it is characterized in that according to claim 1 and 2 or 3 described the two poles of the earth socket protective doors:
Be provided with the first gathering sill (4b) and the first recess (4c) between the first inclined-plane door leaf (41) of described first (4) and the first plane door leaf (42); Be provided with the second gathering sill (6a) and the second recess (6c) between the second inclined-plane door leaf (61) of described second (6) and the second plane door leaf (62);
Staggered combination by the first recess (4c) and the second recess (6c) realizes the interlaced setting of first (4) and second (6) and overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010559371 CN101980404B (en) | 2010-11-26 | 2010-11-26 | Bipolar socket protection door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010559371 CN101980404B (en) | 2010-11-26 | 2010-11-26 | Bipolar socket protection door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101980404A CN101980404A (en) | 2011-02-23 |
| CN101980404B true CN101980404B (en) | 2013-02-20 |
Family
ID=43600896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010559371 Active CN101980404B (en) | 2010-11-26 | 2010-11-26 | Bipolar socket protection door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101980404B (en) |
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| CN102931514B (en) * | 2012-11-09 | 2015-10-14 | 浙江正泰建筑电器有限公司 | A kind of release mechanism |
| CN105742867B (en) * | 2016-04-07 | 2017-06-09 | 牛培行 | It is interactive without spring hole scoket |
| CN106992381A (en) * | 2017-04-12 | 2017-07-28 | 广东福田电器有限公司 | Safety socket |
| CN110581407B (en) * | 2019-10-11 | 2020-09-01 | 山西纬隆科技有限公司 | Socket of closed three-plug and two-plug combined type jack |
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| CN201181759Y (en) * | 2008-03-19 | 2009-01-14 | 黄华道 | Power supply plug jack safety shield apparatus mounted in power socket |
| CN201417846Y (en) * | 2009-03-30 | 2010-03-03 | 廖生兴 | Socket structure capable of preventing error-plugging |
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Also Published As
| Publication number | Publication date |
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| CN101980404A (en) | 2011-02-23 |
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