CN1582517A - Twist-lock connector for electrical plug and wall socket - Google Patents
Twist-lock connector for electrical plug and wall socket Download PDFInfo
- Publication number
- CN1582517A CN1582517A CN01823876.9A CN01823876A CN1582517A CN 1582517 A CN1582517 A CN 1582517A CN 01823876 A CN01823876 A CN 01823876A CN 1582517 A CN1582517 A CN 1582517A
- Authority
- CN
- China
- Prior art keywords
- socket
- sleeve
- plug
- cover plate
- cloudy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
- H01R13/6395—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap for wall or panel outlets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/623—Casing or ring with helicoidal groove
Abstract
A twist-lock connector assembly for securing an engaged electrical plug to an electrical socket (or outlet) that includes a rotatable cylindrical sleeve disposed enclosing an electrical plug. In use, the electrical plug is inserted into the socket and the cylindrical sleeve is rotated abort a 1/4 turn. This causes the inner disposed nubs of the sleeve to lockingly engage the outer disposed threads of the upstanding cylindrical wall of the cover plate. This prevents the electrical plug from being accidentally pulled loose from the socket. One aspect of the twist-lock connector assembly provides securing engagement of an electrical plug to a female socket portion of an extension cord. The female socket is enclosed by a retractable sleeve provided with engaging nubs adapted to lockingly engage the external threads of the rotatable sleeve of the electrical plug. Another aspect of the twist-lock connector assembly provides rapid twist-locking connection between a female connector of an extension cord and the male connector end of a whip end of handle portion of an outdoor power tool.
Description
Technical field
The present invention relates to the locking device of electric connector, particularly a kind ofly be used to keep twistlock (twist-lock) connector assembly that engages between plug and the wall socket.
Background technology
When using electric device or electric tool, the firm engagement between necessary maintenance plug and wall power sockets or the electric source connecting box is to guarantee providing continual power supply to utensil or electric tool.Power line is deviate from from the wall power sockets accident that links to each other can disappointing and reduction productivity ratio.For example, most of people live through when using vacuum cleaner, repeatedly unexpectedly power line are pulled common so disappointed phenomenon from wall socket.Another example is that the computer plug gets loose and will cause loss of data from the wall power sockets that links to each other.Lift an example again, when the builder on the building site has to just in use the electric tool that gets loose from wall socket or electric source connecting box inserted again, all caused loss in productivity at every turn.
For guaranteeing engaging between plug and wall socket or the electric source connecting box, various technology and installing all propose.For example,, be equipped with a becket or fork-shaped tongue piece on the plug, be connected to the centre bore of supply socket cover plate by screw according to a kind of prior art.
A shortcoming of this way is that attaching plug inserts wall socket at every turn or when wherein transfering to, all will tighten or twist the cover plate central screw.Therefore this method is very unrealistic for the occasion (for example using vacuum cleaner, garden tool set, electric tool etc.) that only needs the short time grafting.And this method all needs screwdriver at every turn when plug latch being tightened to socket or transfer to from socket.Moreover, when to connect be one three pin plug the time, the existence of the 3rd contact pin (earth terminal) means that plug can only insert wall socket along direction.Owing on the cover board have only a center bolt hole usually between two jacks, can only have a plug that has metal ring plate or fork-shaped tongue piece to be arrived wall socket at every turn by screw.Thereby a kind of connected mode that plug latch is tightened to wall socket and does not need additional means and a plurality of plugs can be locked to simultaneously each jack of socket will be a technical very big progress.
For exposed type terminal box common in dock, usually way is to be connected with jack on the terminal box with the assurance plug with leather belt, rope even adhesive tape.Also common in addition conductor contact pin bending or distortion with plug are so that form tighter contact in terminal box.Obviously these ways are makeshift, can not provide a durable reliable joint for plug and socket.
My way of before having addressed this problem is at U.S. Patent number 5,344, discloses in 333.The plug twistlock that this way proposes will match with a rotating cylindrical sleeves is to the cover plate of wall socket.In this design, an end of cylindrical sleeves is made and is suitable for the shape that interlock is inserted into the socket aperture on the cover plate, and second socket end is along having groove on its inner cylinder face.Plug is furnished with a plectane that has the moulding screw thread along outer surface.During use, plug engages in socket, and turnbarrel is locked groove on the sleeve and the screw thread on the plug plectane mutually.
Although my previous design and operation is good, and have more advantage, also have a problem than above-mentioned prior art, the past owing to along with the time, be easy to accumulate dust and chip in the sleeve, this can hinder correctly sealed.And, in my previous design, need with the hands finish sealed between plug and the wall socket.Thereby, expect to have very much a kind of twist-lock connector device that can overcome these problems.
Summary of the invention
Main purpose of the present invention provide a kind of simply, twist-lock connector device cheaply, the plug that is used for engaging is fixed to wall socket or electric source connecting box.
A relevant purpose of the present invention provides a kind of its type twist-lock connector device described here, and this device allows singlehanded easily locking operation, and need not any instrument and finish locking operation.
In brief, according to a preferred embodiment, twist-lock connector assembly among the present invention comprises two critical pieces: one surrounds plug insulator part and can be around the cylindrical sleeves of rotational, with an improved cover plate, this cover plate has replaced traditional cover plate that covers on the wall socket metallic wiring box.First socket end of this cylindrical sleeves extends plug insulator part one segment distance along outstanding metallic conductor or contact pin direction, and second socket end of sleeve is installed in rotation on the insulator part of plug.During use, cylindrical sleeves can freely rotate around the long axis of plug.First socket end of sleeve is arranged with a plurality of radially inside projections along its inner periphery.
Improved cover plate is except each socket aperture arranged around has a upright cylindrical wall, and is similar in design to conventional cover plate.Each right circular cylinder cornice has along the discontinuous thread set of a plurality of spaces that outside wall surface is arranged.The diameter dimension of each right circular cylinder wall will form close tolerance fit in the front end of cylindrical sleeves.And the design of thread set will make on the outside wall surface: when sleeve rotated on the right circular cylinder wall, thread set matched with projection on the first socket end inner cylinder face.
During use, plug is inserted in the jack of wall socket, and cylindrical sleeves is rotated about 1/4 circle.This makes the projection of arranging in the sleeve be locked to the outer screw thread of arranging of right circular cylinder wall on the cover plate.Plug by its with being connected of second socket end of cylindrical sleeves prevented from unexpectedly from socket, to be pulled.
The present invention is to use the projection on the sleeve to replace groove with the advantage that the twist-lock connector design of screw thread in groove in the prior art compared, and has eliminated the problem of accumulating dust and chip and hindering the correct twistlock of locking mechanism in the aforementioned sleeve basically.
The position of pivotable sleeve on plug also helps user's one hand and carries out twist lock manipulation.
In another embodiment of the present invention, the twist-lock connector assembly comprises three parts, that is: cover plate that is used for fixing wall socket, the cylindrical sleeves of a shortening, and an adapter or a plectane that is installed to plug contact pin end or constitutes plug contact pin end part.The cylindrical sleeves that shortens has two ends: but first socket end is made the shape that interlock is inserted into socket aperture on the cover plate, second socket end have a plurality of apart from one another by, the projection of arranging along inner periphery.In case be snapped to the tram on the cover plate, the cylindrical sleeves of shortening can be with respect to cover plate around rotational.The plectane of plug contact pin end has a plurality of external screw threads.During use, plug inserts in the jack of wall socket, rotates the cylindrical sleeves that shortens, thereby makes projection on the second socket end inner periphery that is arranged in sleeve be locked to external screw thread on the plug plectane.
In another embodiment of the present invention, the twist-lock connector assembly comprises a rotating sleeve sheath, surrounds plug.Fore-end at pivotable sleeve is arranged with external screw thread.This twistlock stressed joint device assembly also comprises the wall socket cover plate that socket aperture is arranged of an improved, surround be arranged with on the inner cylindrical wall of each socket aperture become one with inwall, apart from one another by, inside projection.During use, the conductor contact pin of plug inserts on the wall socket in the corresponding socket aperture, and turnbarrel makes external screw thread on the pivotable sleeve be locked to projection on the cover plate.
In another embodiment of the present invention, the twist-lock connector assembly is applicable to engaging between the cloudy socket end that keeps plug and extension cable.This embodiment directly is directed to and keeps engaging between extension cable and electric tool and/or the utensil; And electric tool or utensil have positive electricity connector or the contact pin end that is connected by whiplike part or become one with its grip structure.For example, this connector is commonly used on the outdoor garden tool set, purges machine, vacuum cleaner, hedge cutter etc. as leaf.In this embodiment, the oedoeagus of electric connector or contact pin end have a plectane on whiplike part or the handle, are arranged with a plurality of screw threads on the cylindrical outer wall of plectane.The same with the front, the moon end of connector assembly or socket end are furnished with a rotatable retractible sleeve.Be arranged with the inside projection that becomes one with it in the sleeve lining whose forwardmost end portions.During use, the conductor contact pin of plug inserts the corresponding jack of cloudy socket, and turnbarrel makes projection inside on the pivotable sleeve be locked to screw thread on the cover plate.Cover plate may be integral or provide by the after market part with the male connector insulative body portion is fractal.
Another advantage that the present invention brings is to have prolonged working life, and has improved the reliability of the electricity contact component of plug and jack assemblies.This is because the twistlock feature of connector assembly has reduced the tension force on the plug basically, thereby has prevented the excessive wear of cloudy socket and convex plug assembly electricity contact surface.
Comprise with above-mentioned feature and the method and apparatus of bringing into play above-mentioned functions effectively and constitute specific purpose of the present invention.
Of the present invention other can obviously be found out from following description and claim with more purpose, and expression in the accompanying drawings, these accompanying drawings have shown the preferred embodiments of the present invention and principle thereof in the mode of example, and the best mode that is considered to use these principles.Can adopt other embodiment of the present invention that embodies identical or suitable principle, those skilled in the art can make structural change on demand and not break away from the scope of the present invention and accessory claim.
Description of drawings
Accompanying drawing is the part of book as an illustration, example several aspects of the present invention, its with the explanation, be used for explaining principle of the present invention.
Fig. 1 is according to the isometric views of the twist-lock connector assembly of first embodiment of the invention, has shown the locked engagement between plug and the wall socket.
Fig. 2 is and the similar isometric views of Fig. 1 to have shown the situation that plug is transferred to from wall socket.
Fig. 3 is a side cutaway view of Fig. 2 twist-lock connector assembly.
Fig. 4 is according to the isometric views of the twist-lock connector assembly of second embodiment of the invention, has shown the locked engagement between plug and the wall socket.
Fig. 5 is an isometric views of the second embodiment of the invention similar to Fig. 4, has shown the situation that plug is transferred to from wall socket.
Fig. 6 is the front view according to a wall socket cover plate of second embodiment of the invention structure.
Fig. 7 is the isometric views that is used for keeping the twist-lock connector assembly that engages between plug and the wall socket according to third embodiment of the invention.
Fig. 8 be one along cutting line among Fig. 7 and the cutaway view that dissects towards arrow 8-8 direction through wall socket board component and pivotable sleeve.
Fig. 9 and Figure 10 are according to another embodiment of the present invention, have shown a series of front views, have showed the withdrawal of wall socket cover plate assembly, position (Fig. 9) and the off-position (Figure 10) opened.
Figure 11 be one along cutting line among Figure 10 and the profile that dissects towards arrow 11-11 direction through the wall socket cover plate assembly.
Figure 12 is the isometric views that is used for keeping the twist-lock connector assembly that engages between the cloudy socket part of plug and extension cable according to fourth embodiment of the invention.
Figure 13 be one along cutting line among Figure 12 and the sectional exploded view that dissects towards arrow 13-13 direction through cloudy socket connector jacket assembly.
Figure 14 is the end view of a twist-lock connector assembly shown in Figure 12, has shown the twistlock syndeton of cloudy socket and convex plug assembly with profile type.
Figure 14 A is the partial enlarged drawing in arrow 14A-14A circle territory, settlement among a Figure 14.
Figure 15 is the end view of the twistlock syndeton of a convex plug and cloudy jack assemblies, has shown the conical area that cooperatively interacts of engaging zones when being used to compression fit is provided.
Figure 16 is a partial sectional view through electric connector or garden tool set handle or whiplike part contact pin end according to prior art.
Figure 17 is the isometric views that keeps the part of the twist-lock connector assembly that engages between the cloudy socket part of plug and extension cable to be cut away of being used for according to fifth embodiment of the invention.
Figure 18 is a side cutaway view of Figure 17 twist-lock connector assembly.
Figure 19 be one along cutting line among Figure 18 and the profile that dissects towards arrow 19-19 direction through connector assembly contact pin end.
Figure 20 is the local amplification profile in arrow 20-20 circle territory, settlement among a Figure 19.
In detail referring to each preferred embodiment of the present invention, the example illustrates in the accompanying drawings now.
Embodiment
One according to the first embodiment of the invention structure is used for keeping plug to represent at Fig. 1-3 usefulness Reference numeral 10 generally with the twist-lock connector assembly that engages between the wall socket.
Twist-lock connector assembly 10 comprises the columniform sleeve 12 that is roughly of an insulator part 14 that surrounds plug 16.Can be clear that from Fig. 3 first socket end 13 of sleeve 12 extends a segment distance forward than insulator part 14, make it partly surround the conductor or the contact pin (showing) of plug 16 like this with dotted line.First socket end 13 of sleeve is arranged with the projection 15 that comes in a plurality of spaces equably along its inner periphery.
Certainly, also have many other possible alternative structure forms, be used for sleeve is pivotally mounted on the plug, to keep axial location relation desired between sleeve and the plug (that is: first socket end 13 that has a projection 15 just is positioned at the front of the insulator part 14 of plug 16).For example, conical end 22 may become one with cylindrical sleeves 12 (in this case, conical end is not screwed plug 16).The tip of the conical end of this transformed sleeve will comprise a hole, be used for admitting the power line of plug.An additional retainer may be installed in and limits backward the displacement of conical end with respect to plug 16 on the power line as a ring or similar (not shown), thereby keeps axial location relation desired between sleeve and the plug.
Twist-lock connector assembly 10 also comprises one and replaces receptacle cover plate, the transformed cover plate 30 of conventional wall.Transformed cover plate 30 preferably comprises a centre bore 32, is used for admitting a trip bolt (not shown) that cover plate 30 is fixed to wall socket tradition central screw position.This sees the most clearly in Fig. 2 and Fig. 3.Another possibility as shown in Figure 1, cover plate may comprise upper and lower screw hole 34 (being represented by dotted lines), is used for cover plate 30 is fixed to the upper and lower screw position of the can of the electric jack part 35 of holding wall socket.
Have the socket aperture 36 that surrounds by upstanding peripheral wall 38 on the cover plate 30.Each wall 38 forms a cylinder open, and its diameter dimension will make it form close tolerance fit in the cylinder open of first socket end 13.The outer surface of wall 38 comprises a plurality of external screw threads 40; In the use, when plug inserts receptacle portion 35, and rotational sleeve 12 is during to locked position, projection 15 interlock mutually on external screw thread 40 and first socket end 13.Like this, pivotable sleeve 12 is by on the face of cylinder 38 of standing up that cutting is arranged of twistlock to the cover plate 30, thereby provides correct locked engagement between the receptacle portion 35 of plug 16 and wall socket.In the time of plug will being transferred to from wall socket, as long as sleeve 12 rotate round about, like this will be disengagement sealed between the external screw thread 40 on the right circular cylinder wall 38 of projection 15 on they and cover plate 30.
In the preferred embodiment of the present invention, four projections 15 and four discontinuous screw threads 40 are arranged, screw threaded arrangement is all by four (4) traditional some cross types.This simple-arranged allows twistlock and transfers to operation only to need sleeve to rotate about 1/4 circle along arbitrary required direction.If necessary, can adopt more screw thread and projection.
A twist-lock connector assembly according to the second embodiment of the invention structure is represented with Reference numeral 50 in Fig. 4 and Fig. 5 generally.
Twist-lock connector assembly 50 comprises: a plectane 52 that is connected in plug 16 contact pin ends or becomes one with it; One replaces conventional wall socket or the power supply wiring lid plate, transformed cover plate 56; With a cylindrical sleeves 54 that is used for plectane 52 is pivotally mounted to cover plate 56.Sleeve 54 is above transformation and shortening forms with reference to the described embodiment middle sleeve 13 of Fig. 1-3, and its first socket end has a plurality of ribs 58 along circumference, is used for " interlock-insertion " socket aperture 60 to cover plate 56.Each socket aperture 60 preferably comprises at least one inside boss or block 62, in the use near the axial stop 64 that has on first socket end, with the restriction axial rotation scope of sleeve 54 in socket aperture 60.This feature will be described in a more detailed discussion with reference to Fig. 6 below.
The inner periphery of second socket end of sleeve 54 be arranged with a plurality of apart from one another by projection 66.Plectane 52 on the size of this inner periphery and the plug 16 forms close tolerance fit.When the conductor part on the plug 16 68 (showing with dotted line) joins on the wall socket in the receptacle portion 35 behind the corresponding receiving channel, promptly along arrow A direction turnbarrel among Fig. 4.The external screw thread 70 that this will make projection 66 be locked to have on the plectane 52, thus make plug 16 be locked to cover plate 56.Pivotable sleeve 54 preferably comprises projection 72, so that the user carries out twist lock manipulation with finger.
Referring now to Fig. 6, two projections 72 on each sleeve 54 preferably are the diagonal positioned opposite, so that when sleeve 54 was in not latched position, they were positioned at " two " and " eight " position of socket aperture.When sleeve rotated to latched position, two projections 72 moved to approximately " four " and " ten o'clock " position respectively.Increase or reduce the axial rotation scope of sleeve 54 in each jack 60 and can finish by the position of adjusting axial stop 64 on first socket end; When pivotable sleeve is in fully sealed and not during latched position, these axial stops abut against on the projection 62.Axial stop 64 should guarantee also that with respect to the selection of the position of the projection on each sleeve 72 projection 72 on the upper and lower sleeve can overlapped and mutual interference.
One according to the third embodiment of the invention structure is used for keeping plug to represent at Fig. 7-8 usefulness Reference numeral 80 generally with the twist-lock connector assembly that engages between the wall socket.
Twist-lock connector assembly 80 comprises a wall socket cover plate 82 that replaces conventional wall socket or power supply wiring lid plate.Comprise out 84 on the cover plate, its size and position allow positive electricity plug-assembly 16 to insert the receptacle portion 86 of wall socket.The inner periphery of each opening 84 be arranged with a plurality of apart from one another by radially inside projection, be preferred manner with four uniform projections in interval.The degree of depth of the inner cylindrical wall face of each opening 84 will be enough to allow the complete twistlock of external screw thread on the pivotable sleeve of itself and positive electricity plug-assembly to live (following description).
Twist-lock connector assembly 80 also comprises a rotatable cylindrical sleeves 90, and it surrounds the insulator part 14 of positive electricity plug-assembly 16.Sleeve 90 around the rotation of the long axis of plug 16 shown in direction arrow A.Sleeve 90 is furnished with a plurality of external screw threads 92 at its front end.The size of screw thread 92 and quantity will be convenient to the projection on the jack on the wall socket cover plate 82 84 88 locking cooperation mutually.Sleeve 90 also has and keeps the structure that cooperates rotationally with plug 16.Shown in example embodiment in, this maintenance structure comprises a keyway 94 that is arranged in the intaglio of sleeve 90 ends.
As above with reference to Fig. 3 among the described embodiment, the shape of the keyway 94 of intaglio will be suitable for being pivotally mounted to endless groove or the slit 20 on the insulator part 14 of electric plug assembly parts 16.The same the same, electric plug assembly parts may comprise a fixing conical jacket portions 22, so that electric plug assembly parts 16 is formed with the conical external surface of good decorative effect.
And, in the preferred embodiment of the present invention, four projections 88 and four discontinuous screw threads 92 being arranged, screw threaded arrangement is put cross type by four (4).This simple-arranged allows twistlock and transfers to operation only to need sleeve to rotate about 1/4 circle along arbitrary required direction.If necessary, can adopt more screw thread and projection.
Wall socket cover plate 82 among the present invention is intended to forever substitute present family expenses and commercial conventional wall receptacle cover plate.Can recognize have in inserting the present invention the plug of twistlock syndeton of special configuration, the user also can continue to use wall socket to insert traditional electrical plug (being that those are not with the plug of twistlock syndeton).Can also recognize that inside projection 88 may hinder some major diameter convex plug of current use and being connected of socket aperture on the socket aperture 84 on the cover plate 82.
With reference to Fig. 9-11, can overcome this potential problems by cover plate 82 being designed to a telescopic cover plate assembly, cover plate assembly comprises revocable outer cover plate unit 96a, 96b and inner cover plate 98.Projection 88 is arranged in outer cover plate unit 96a, on the inner cylindrical wall face of the socket aperture 84 of 96b.The socket aperture of inner cover plate 98 is identical with conventional cover plate with thickness, and is so that when inserting, compatible fully with traditional plug configuration.Inner cover plate 98 is installed on the wall socket 97 in a conventional manner by a central screw 99 (sees Figure 11).
At inner cover plate 98 and outer cover plate unit 96a, provide suitable " tenon is in groove " can recall slide construction (for example tenon 100 on the inner cover plate 98 and outer cover plate unit 96a on the mating surface of 96b, groove 102 on the 96b), so that the outer cover plate unit shifts out original position, inner cover plate is exposed.The recalled feature of above-mentioned outer cover plate unit allows any traditional electrical plug to be inserted into wall socket without barrier.The receiving channel 106 that the surface of each groove 102 and tenon 100 is provided with locating piece or projection 104 and matches, with outer cover plate unit 96a, 96b locks onto the release position (Fig. 9) or the make position (Figure 10) of recalling fully.Outer cover plate unit 96a, 96b may also comprise the fringe region 108 that has rib or hackle mark, and making things convenient for the user with outer cover plate unit 96a, 96b moves into or uses when shifting out original position holds.
Be appreciated that but the above-mentioned embodiment that recalls the twistlock cover plate assembly can changes and improvements, and still can reach so basic purpose: allow the traditional electrical plug to insert cloudy receptacle portion below it without barrier thereby promptly one or more outer cover plates unit is shifted out original position.For example, an available suitable hinge or other traditional pivot structure are pivotally mounted to the outer cover plate unit of cover plate assembly on the inner cover plate.In addition, a plurality of outer cover plates unit can be made one with rotatable, can pivot or (for example " interlock " install) single outer cover plate parts to the inner cover plate part are installed in other extensible mode.
Referring to Figure 12-13, shown that according to fourth embodiment of the invention one is used for keeping the twist-lock connector assembly that engages between plug and the cloudy socket part of extension cable.In this embodiment, the insulator part 14 of positive electricity plug-assembly 16 has as above with reference to the identical twistlock syndeton of embodiment as described in Fig. 7 and Fig. 8.That is to say that insulator part 14 is surrounded by a pivotable sleeve 90; This sleeve 90 is arranged with external screw thread 92 at the front end or the contact pin end of electric plug assembly parts 16.
See the most clearly from Figure 13, sleeve 112 inboards comprise one or more projection 112b among the corresponding groove 110b on cloudy socket 110 outer surfaces that ride over.Another possibility is, projection 112b can make single circular protrusion, and corresponding groove is made single annular recess.In this case, can recall sleeve 112 can also be around the axis rotation of cloudy socket 110.The size of projection and corresponding groove will provide the translation of the front 110a certain limit that exceeds cloudy socket 110 for the front end 112a of sleeve 112.As selection, can recall sleeve 112 and can be expressed to by a spring 118 and be in extended position usually.
During operation, the positive electricity plug is connected following carrying out with twistlock between the cloudy socket: at first, the conductor contact pin end of positive electricity plug-assembly 16 inserts in the cloudy socket 110 corresponding receiving openings.Sleeve 112 is moved to extended position (if also not being expressed to extended position by spring 118), so that projection 116 is extended one section sufficiently long distance of cloudy socket front 110a, with provide with positive electricity plug-assembly 16 on fully engaging between the screw thread 92 on the pivotable sleeve 90.Then, the user only needs by screwing direction turnbarrel (for example, being clockwise direction for right-hand thread, is counterclockwise for the left hand screw thread).Screwing just of sleeve 90 is joined together screw thread 92 and projection 116, and this just draws in the remainder of the conductor contact pin of positive electricity plug-assembly 16 in the cloudy socket 110 corresponding receiving openings.In the time of positive electricity plug 16 will being transferred to, rotate pivotable sleeve 90 round about, so that screw thread 92 separates with projection 116 from cloudy socket 110.
See the most clearly from Figure 14 and Figure 14 a, pivotable sleeve 90 with can recall one of sleeve 112 front and back ends or two ends can both be tapered, become conical so that the sealing of blocks dust, moisture or a pollutant and so on thing to be provided.Should " dust seal " also may be used on aforementioned any or all among the embodiment.
Referring to Figure 15, pivotable sleeve 90 and the front end mating surface separately that can recall sleeve can both be done tapered with working in coordination, so that the compression fit of an expectation is provided behind twistlock.In the example shown, the inner cylindrical wall face 120 that can recall sleeve 112 front end 112a has been made the conical butt that cooperatively interacts with the outside cylinder wall 122 of the threaded end 92 of pivotable sleeve 90.In Fig. 7-11 illustrated embodiment, also can do coning so that form the compression fit of expectation around the inner cylindrical wall face of each socket aperture 84 on the panel 82 with the plug of twistlock syndeton with appropriate configuration.
Figure 16 has shown the concave type contact pin end 130 that often appears at outdoor garden tool set handle or whiplike part.Yang exhaustion edge body portion 132 is enclosed in the sheath 134, sheath 134 or become one with the garden tool set handle, or become the whiplike part of the weak point that links to each other with the garden tool set handle.Contact pin 136 (they may have only two contact pins or also have one the 3rd ground connection contact pin) is withdrawn into the recessed region 138 of sheath 134.During use, the cloudy socket part (not shown) of cable is admitted by recessed region 138, so that finish joint with contact pin 136.
Figure 17 has shown the situation that applies the present invention to keep with the whiplike end of garden tool set the twistlock joint according to fifth embodiment of the invention.In this embodiment, the insulator of positive electricity plug-assembly 216 partly has a plectane 218, is arranged with a plurality of screw threads 292 on plectane 218 outer cylinder surfaces.Screw thread 292 resembles previous embodiments, preferably comprises four or five discrete screw elements.In the present embodiment, plectane 218 links to each other with positive insulator, can be fixed to the upper with screw or similar mechanical fastener removedly, or may become one with positive insulator, or become one with the sheath 222 that surrounds positive insulator.Here, positive electricity plug-assembly 216 is presented as that concave type connects, and becomes the part of common whiplike connector end of outdoor gardening electric tool or handle portion.Sheath 224 on whiplike connector end or the outdoor garden tool set grip structure is round plectane 218 and contact pin or conductor 236 and stretch out forward, and its diameter dimension is wanted enough greatly, so that can surround rotatable, as can to recall sleeve 212 fore-end.
With reference to the described embodiment of Figure 12-13, cloudy socket 210 is surrounded by sleeve 212 and fixing conical end sheath 214 as above.Sleeve 212 can be installed on the cloudy socket 210 with recalling, and allow sleeve 212 that a certain amount of translation (as shown by arrow B) is arranged between following two positions: one is complete withdrawn position, and this moment, the front end 212a of sleeve 212 was concordant with the front 210a of cloudy socket 210; Another is an extended position, and the front end 212a of sleeve 212 stretches out front 210a one segment distance of cloudy socket 210 at this moment.Sleeve 212 inboards comprise a plurality of radially inside projection 212b, and these projections can be admitted by corresponding endless groove 210b on cloudy socket 210 outer surfaces.Another possibility is that projection 212b can make single circular protrusion.In this case, can recall sleeve 212 can also be around the axis rotation of cloudy socket 210, shown in direction arrow A.The size of these kicks (or a long projection band) and corresponding groove will provide the translation of the front 210a certain limit that exceeds cloudy socket 210 for the front end 212a of sleeve 212.The front end 212a of sleeve 212 be arranged with a plurality of apart from one another by radially inside projection 216.
During operation, the positive electricity plug is connected following carrying out with twistlock between the cloudy socket: at first, the conductor contact pin 236 of positive electricity plug-assembly 216 inserts in the cloudy socket 210 corresponding receiving openings.Again but translation, pivotable sleeve 212 are moved to extended position so that projection 216 is extended one section sufficiently long distance of cloudy socket front 210a, with provide with positive electricity plug-assembly 216 front end plectanes 218 on screw thread 292 between fully engage.Then, the user only needs by screwing direction turnbarrel 212 (for example, being clockwise direction for right-hand thread, is counterclockwise for the left hand screw thread).Screw thread 292 is rotated and joined to screwing just of sleeve 212 with projection 216, and this just draws in the remainder of the conductor contact pin 236 of positive electricity plug-assembly 216 in the cloudy socket 210 corresponding receiving openings.In the time of positive electricity plug 216 will being transferred to, rotate pivotable sleeve 212 round about from cloudy socket 210, so that screw thread 292 is thrown off with projection 216.
The sleeve 212 sufficiently long distance of preferably withdrawing is so that allow to use common large scale pin connector.Figure 17 and syndeton embodiment illustrated in fig. 18 can be transformed on demand, so that comprise taper dust seal among Figure 14-14A and the conical butt compressing structure of working in coordination among Figure 15.
Referring now to Figure 19-20,, the external peripheral surface of plectane 218 preferably comprises one or more groove or pits 294 that form thereon.Pit 294 is configured to turn to when engaging with screw thread 292 when sleeve, and pit is admitted one of projection 216 on the cloudy sleeve 212 suitably.Pit 294 with respect to the locator qualification of screw thread 292 end that twistlock engages between sleeve 212 and the plectane 218.Like this, the user can judge whether lock by sense of touch, to avoid the connector assembly overtorquing.
Although example and described the preferred embodiment of my invention, but be appreciated that they can changes and improvements, therefore in the definite details that I am reluctant to be limited in being stated, but expectation makes us can utilize these changes and improvements within the scope of the following claims.
Claims (25)
1. one kind is used to keep the twist-lock connector assembly that engages between plug and the wall socket, and this connector assembly comprises:
A) cover plate that is used to surround wall socket, described cover plate comprises at least one and is used to allow plug to be inserted into the circular socket holes of the receptacle portion of described wall socket, be arranged with on the described jack inner cylindrical wall face a plurality of apart from one another by radially inside projection;
B) sleeve that is used to surround plug insulator part, sleeve comprises first socket end and second socket end, and first socket end is arranged near the cut cable of described plug, and second socket end is arranged near the contact pin end of described plug, wherein:
I) described first socket end is pivotally mounted to described insulator part, freely rotates around the axis of the described insulator part of described plug to allow described sleeve;
Its outer surface of outside cylinder wall upper edge of ii) described second socket end has the screw element of a plurality of protuberances; And
Iii) described screw element can engage effectively with the described projection on the described cover plate, and along with described sleeve is less than the rotation of a circle, and described plug is drawn in the locked engagement with described wall socket.
2. the invention described in claim 1, wherein described a plurality of screw elements of arranging along the described outer surface of the described outside cylinder wall of described second socket end comprise independently discontinuous screw thread.
3. the invention described in claim 1, wherein said first socket end comprise the keyway of an intaglio of being admitted slidably by the circumferential groove that has on the described plug outer surface.
4. the invention described in claim 3, wherein described a plurality of screw elements of arranging along the described outer surface of the described outside cylinder wall of described second socket end comprise independently discontinuous screw thread.
5. the invention described in claim 1, the described outside cylinder wall of wherein said second socket end and the described inner cylindrical wall face of described cover plate jack are the conical butt that cooperatively interacts, so that with after described wall socket engages, provide a compression fit at described plug.
6. the invention described in claim 1, at least one in described first and second socket ends of wherein said sleeve attenuated, and becomes taper shape and radially inwardly touches a besieged insulator part, thereby a dust seal is provided.
7. one kind is used to keep the twist-lock connector assembly that engages between plug and the wall socket, and this connector assembly comprises:
A) cover plate assembly that is used to surround wall socket, wherein said cover plate assembly comprises:
I) inner cover plate that is suitable for being directly mounted to described wall socket, described inner cover plate is provided with jack, and its size allows to be inserted into without barrier the cloudy receptacle portion of described wall socket;
Ii) outer cover plate with at least one circular socket holes, the inner cylindrical wall bread of jack contains a plurality of radially inside projections; And
The mode of recalling that iii) is used for slidably described outer cover plate being connected to described inner cover plate and is used for described outer cover plate is moved between following two positions: first make position, have a described jack to be positioned at the cloudy receptacle portion of described wall socket on the described outer cover plate this moment; Second release position of recalling, this moment, the lower part around the described inner cover plate of cloudy receptacle portion was exposed;
B) sleeve that is used to surround plug insulator part, sleeve comprises first socket end and second socket end, and first socket end is arranged near the cut cable of described plug, and second socket end is arranged near the contact pin end of described plug, wherein:
I) described first socket end is pivotally mounted to described insulator part, freely rotates around the axis of the described insulator part of described plug to allow described sleeve;
Its outer surface of outside cylinder wall upper edge of ii) described second socket end has the screw element of a plurality of protuberances; And
Iii) described screw element can engage effectively with the described projection on the described outer cover plate, and along with described sleeve is less than the rotation of a circle, and described plug is drawn in the locked engagement with described wall socket.
8. the invention described in claim 7, wherein said assembly comprise be used for described outer cover plate lock onto described first make position or described second release position of recalling both one of latch-up structure.
9. the invention described in claim 8, wherein said outer cover plate comprises the jagged edge part, to make things convenient for the user described outer cover plate is being used holds when mobile between described first make position and described second release position of recalling.
10. one kind is used to keep the twist-lock connector assembly that engages between plug and the cloudy socket, and this connector assembly comprises:
A) first sleeve that is used to surround plug insulator part, first sleeve comprises first socket end and second socket end, first socket end is arranged near the contact pin end of described plug, wherein:
I) its outer surface of outside cylinder wall upper edge of described first socket end has the screw element of a plurality of protuberances;
Ii) described second socket end is pivotally mounted to described insulator part, and described sleeve can freely be rotated around the described insulator axis partly of described plug; And
B) second sleeve that is used to surround cloudy socket, described second sleeve comprises front-end and back-end, wherein:
I) be arranged with on the inner cylindrical wall face of described barrel forward end a plurality of apart from one another by radially inside projection, be used to be locked to the described screw thread of described pivotable sleeve; And
Ii) described sleeve rear end is installed on the cloudy socket, so that along with described first sleeve is less than the rotation of a circle, the twistlock between described screw thread and the described projection just is pulled into plug in the locked engagement with cloudy socket.
11. the invention described in claim 10 wherein comprises independently discontinuous screw thread along described a plurality of screw elements of arranging on the described outside cylinder wall of described first socket end of described first sleeve.
12. the invention described in claim 10, the described rear end of wherein said second sleeve can be installed on the cloudy socket with recalling, to allow described barrel forward end to exceed the fully long distance of one section of leading edge translation of cloudy socket, to allow the locked engagement between described projection and the described screw thread.
13. the invention described in claim 10, in described first and second socket ends of wherein said first sleeve and the described front-end and back-end of described second sleeve at least one attenuated, become taper shape and radially inwardly touch a corresponding besieged insulator part or cloudy socket, thereby a dust seal is provided.
14. the invention described in claim 10, the described inner cylindrical wall face of the described outside cylinder wall of described first socket end of wherein said first sleeve and the described front end of described second sleeve is the conical butt that cooperatively interacts, so that after described plug engages, provide a compression fit in described cloudy socket.
15. handle assembly that is used for electric device, so that reliable connection the between electric device and the cloudy socket to be provided, this the moon socket has a sleeve to surround socket and is installed in rotation on the socket, this sleeve has front end, be arranged with on the inner cylindrical wall face of barrel forward end a plurality of apart from one another by radially inside projection, this handle assembly comprises:
A handle that is suitable for supporting electric device has a recess on the handle; And
A plug that is suitable for cloudy socket twistlock joint, plug and handle become one, and are disposed within the recess;
Wherein plug comprises:
A plectane that is connected to plug contact pin end is arranged with a plurality of screw elements on the described plectane outside cylinder wall, is used for the projection locked engagement on the sleeve; And
The rotation of its middle sleeve makes screw thread and projection interlock mutually, and plug is pulled in the locked engagement with cloudy socket.
16. the handle assembly in the claim 15, wherein a plurality of screw elements are discontinuous.
17. the handle assembly in the claim 15, wherein comprise one or more pits that form on the outside cylinder wall of plectane thereon, each of these one or more pits is configured to be used for correctly admit one of engagement protrusion, to limit the end of sleeve twistlock action.
18. the handle assembly in the claim 15, wherein the described contact pin end of plectane and described plug forms as one.
19. the handle assembly in the claim 15, wherein the size of recess is suitable for admitting therein this sleeve.
20. handle assembly that is used for electric device, so that reliable connection the between electric device and the cloudy socket to be provided, this the moon socket has a sleeve to surround socket and is installed in rotation on the socket, this sleeve has front end, be arranged with on the inner cylindrical wall face of barrel forward end a plurality of apart from one another by radially inside projection, this handle assembly comprises:
A handle that is suitable for supporting electric device has a recess on the handle; And
A plug that is suitable for cloudy socket twistlock joint, plug and handle become one, and are disposed within the recess;
Wherein plug comprises:
A plectane that is connected to plug contact pin end is arranged with a plurality of screw elements on the described plectane outside cylinder wall, is used for the projection locked engagement on the sleeve; And
The rotation that its middle sleeve is less than half-turn makes screw thread and projection interlock mutually, and plug is pulled in the locked engagement with cloudy socket.
21. the handle assembly in the claim 20, wherein a plurality of screw elements are discontinuous.
22. the handle assembly in the claim 20, wherein comprise one or more pits that form on the outside cylinder wall of plectane thereon, each of these one or more pits is configured to be used for correctly admit one of engagement protrusion, to limit the end of sleeve twistlock action.
23. the handle assembly in the claim 20, wherein the described contact pin end of plectane and described plug forms as one.
24. the handle assembly in the claim 20, wherein the size of recess is suitable for admitting therein this sleeve.
25. handle assembly that is used for electronic garden tool set, so that reliable connection the between electronic garden tool set and the cloudy socket to be provided, this the moon socket has a sleeve to surround socket and is installed in rotation on the socket, this sleeve has front end, be arranged with on the inner cylindrical wall face of barrel forward end a plurality of apart from one another by radially inside projection, this handle assembly comprises:
A handle that is suitable for supporting electronic garden tool set has a recess on the handle; And
A plug that is suitable for cloudy socket twistlock joint, plug and handle become one, and are disposed within the recess;
Wherein plug comprises:
A plectane that is connected to plug contact pin end is arranged with a plurality of screw elements on the described plectane outside cylinder wall, is used for the projection locked engagement on the sleeve; And
The rotation that its middle sleeve is less than half-turn makes screw thread and projection interlock mutually, and plug is pulled in the locked engagement with cloudy socket.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2001/031867 WO2003034548A1 (en) | 2001-10-12 | 2001-10-12 | Twist-lock connector for electrical plug and wall socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1582517A true CN1582517A (en) | 2005-02-16 |
| CN1316687C CN1316687C (en) | 2007-05-16 |
Family
ID=21742902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018238769A Expired - Fee Related CN1316687C (en) | 2001-10-12 | 2001-10-12 | Twist-lock connector for electrical plug and wall socket |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1316687C (en) |
| CA (1) | CA2466161C (en) |
| MX (1) | MXPA04004499A (en) |
| WO (1) | WO2003034548A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946021A (en) * | 2012-11-13 | 2013-02-27 | 威海双丰电子集团有限公司 | Cable connecting device |
| CN104733895A (en) * | 2015-03-30 | 2015-06-24 | 无锡市崇安区科技创业服务中心 | Intelligent socket and plug |
| CN105588392A (en) * | 2014-11-10 | 2016-05-18 | Lg电子株式会社 | Refrigerator |
| WO2020014696A1 (en) * | 2018-07-13 | 2020-01-16 | Jerry Jackson | In-line connector locking system |
| CN111342302A (en) * | 2018-12-19 | 2020-06-26 | 施耐德电器工业公司 | Electrical connection point |
| CN111952788A (en) * | 2020-09-16 | 2020-11-17 | 亚瑞源科技（深圳）有限公司 | Anti-drop device for wire joint |
| CN114731014A (en) * | 2019-11-19 | 2022-07-08 | 泰连工业有限公司 | Coupling half-part of an electrical plug comprising a multi-part rotatable sleeve, and electrical plug and method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7066757B1 (en) | 2004-09-20 | 2006-06-27 | Alex Rengifo | Enveloping pin electrical contact system |
| DE102005048248B4 (en) * | 2005-10-07 | 2015-12-03 | Amphenol-Tuchel Electronics Gmbh | Terminator for antenna systems and plug connection with such a terminator |
| HUE035827T2 (en) * | 2007-11-13 | 2018-05-28 | Linak As | An actuator system |
| US10756453B2 (en) | 2018-08-20 | 2020-08-25 | Twisted Ideas, Inc. | Quick connection system |
| USD863222S1 (en) | 2019-07-30 | 2019-10-15 | Twisted Ideas, Inc. | Conductive pin |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA966925A (en) * | 1971-12-30 | 1975-04-29 | Amp Incorporated | Electric connector housing assemblies |
| US5722847A (en) * | 1996-07-12 | 1998-03-03 | Maverick Global Enterprises, Llc | Twist-lock connector for electrical plug and wall socket |
-
2001
- 2001-10-12 MX MXPA04004499A patent/MXPA04004499A/en active IP Right Grant
- 2001-10-12 WO PCT/US2001/031867 patent/WO2003034548A1/en active Application Filing
- 2001-10-12 CN CNB018238769A patent/CN1316687C/en not_active Expired - Fee Related
- 2001-10-12 CA CA002466161A patent/CA2466161C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946021A (en) * | 2012-11-13 | 2013-02-27 | 威海双丰电子集团有限公司 | Cable connecting device |
| CN105588392A (en) * | 2014-11-10 | 2016-05-18 | Lg电子株式会社 | Refrigerator |
| CN105588392B (en) * | 2014-11-10 | 2017-12-08 | Lg电子株式会社 | Refrigerator |
| CN104733895A (en) * | 2015-03-30 | 2015-06-24 | 无锡市崇安区科技创业服务中心 | Intelligent socket and plug |
| WO2020014696A1 (en) * | 2018-07-13 | 2020-01-16 | Jerry Jackson | In-line connector locking system |
| CN111342302A (en) * | 2018-12-19 | 2020-06-26 | 施耐德电器工业公司 | Electrical connection point |
| CN111342302B (en) * | 2018-12-19 | 2023-08-04 | 施耐德电器工业公司 | Electric connection point |
| CN114731014A (en) * | 2019-11-19 | 2022-07-08 | 泰连工业有限公司 | Coupling half-part of an electrical plug comprising a multi-part rotatable sleeve, and electrical plug and method |
| CN111952788A (en) * | 2020-09-16 | 2020-11-17 | 亚瑞源科技（深圳）有限公司 | Anti-drop device for wire joint |
| CN111952788B (en) * | 2020-09-16 | 2024-04-02 | 亚瑞源科技（深圳）有限公司 | Wire connector anti-falling device |
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA04004499A (en) | 2005-05-16 |
| CA2466161C (en) | 2009-01-13 |
| CA2466161A1 (en) | 2003-04-24 |
| CN1316687C (en) | 2007-05-16 |
| WO2003034548A1 (en) | 2003-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1582517A (en) | Twist-lock connector for electrical plug and wall socket | |
| CN1072403C (en) | Power connector, particularly used in charging inlet | |
| CN201200381Y (en) | Long-pole washer | |
| CN1374162A (en) | Power tool | |
| US6454576B1 (en) | Locking electrical receptacle | |
| CN1148592C (en) | Connector plug | |
| US5722847A (en) | Twist-lock connector for electrical plug and wall socket | |
| CN1164401C (en) | Electric tool | |
| CN1918750A (en) | Protective boot and universal cap | |
| CN1689197A (en) | Electrical plug-in connector | |
| CN1577983A (en) | Coaxial cable connector installable with common tools | |
| EP0631694B1 (en) | Equipment connector | |
| CN101317304A (en) | Connector | |
| CN1691427A (en) | Connector | |
| EP1052738A3 (en) | Shielded electrical connector with ground contact spring | |
| WO2005043019A3 (en) | Tubular connection with slotted threads | |
| US20100120278A1 (en) | Multi-angular power adapter | |
| CN2814712Y (en) | Waterproof plug socket | |
| DE60310828T4 (en) | Electric extension cable | |
| US20030176097A1 (en) | Multiple electrical plug locking apparatus | |
| CN102842833A (en) | Waterproof socket and illumination apparatus | |
| CN1797870A (en) | Lamp holder and illuminating attachment | |
| CN1489859A (en) | Cell-phone holder | |
| EP0837532A3 (en) | Plug-jack connecting structure | |
| CN111403954B (en) | Courtyard movable socket box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20131012 |