CN1075829A

CN1075829A - Combined plug for power supply

Info

Publication number: CN1075829A
Application number: CN92101021A
Authority: CN
Inventors: 段长兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-02-22
Filing date: 1992-02-22
Publication date: 1993-09-01
Anticipated expiration: 2007-02-22
Also published as: CN1065984C

Abstract

Combined type attaching plug of the present invention, can be applicable on the multiple socket, it comprises blind plug box, patchboard, pin and is used for the device that carriage is settled pin and can be adjusted pin axial line relative position and angle by what flute profile pin holes, elastic washer and packing ring constituted.This combined type attaching plug can use difform pin to be installed on the different sockets, realizes electrically contacting of good and firm.

Description

Combined plug for power supply

The present invention relates to line connection device, more specifically relate to the relative position of the pin the adjusted axial line that consuming devices such as a kind of equipment, instrument use and the single phase poaer supply plug of angle and replaceable pin type.

General device or instrument with the single phase poaer supply plug and socket, its specification is varied, as shown in figure 21.They must correspondingly one by one use, and a kind of plug of specification can not be used on the socket of other specification.This has brought inconvenience in the use of reality.So the receptacle combinations so-called Universal Socket together with several specifications has been arranged on the market.Correspondingly, combinatorial problem with regard to plug more than two kinds, the someone has proposed several technical schemes, China No. 87202252 patent disclosures a kind of " Universal plug ", purpose is a kind of plug that can patch in various structure supply sockets of design, and its technical scheme is, utilizes the centre distance of two power supply manoeuvre among various states or political grouping cores of two supply hubs of existing various supply sockets or plug to equate this technical characterictic, with ferrule design is rotatable, to realize the purpose of above-mentioned design.No. 87207492 patent disclosures of China a kind of " using adjustable attaching plug " more, provide a kind of pin spacing adjustable, the attaching plug that flat and circular pin exchange.Its solution is, adopts clip shape plug body, and the matrix front end is installed two round pins, is overlapping the flat pin on the circular pin, by matrix openings size adjustment pin spacing.No. 89217984.8 patent disclosures of China a kind of " usually attaching plug ", purpose be design a kind of no matter be all can be general in the supply socket in circular hole or square hole, two holes or three holes attaching plug.Its technical measures are, are that two bevels are cylindric with the shaped design of all column caps of plug, and ground wire column cap wherein can the folding concealment.But the specification of plug and socket is by the decision of the distance between the quantity of its pin or jack and shape and pin or the jack and angle, can permutation and combination goes out the plug and socket of various specifications according to quantity, shape, distance and angle four key elements.Outside the deficiency of above-mentioned patented technology, be that they do not take into account the variation of four key elements comprehensively.In fact the live wire hole of different sockets and the distance between the null line hole are not all to equate.Utilize pin matrix openings size to adjust the pin spacing, its adjustable extent is very little, and can not satisfy the parallel requirement of being close to the jack contact of pin contact, causes loose contact easily, even works the mischief.

The objective of the invention is to avoid above-mentioned weak point of the prior art and a kind of single phase poaer supply plug that can adjust pin axial line relative position and angle is provided, same this plug can insert the different single-phase electricity source(-)holder of several specifications easily respectively, and guarantees contact and contact excellent electric contact.

The present invention also aims to provide a kind of single phase poaer supply plug, comprise the insulating body that constitutes by first insulator and second insulator, and pin, it is characterized in that also comprising that at least one is located at the device that supplies carriage to settle pin and can adjust pin relative position and angle on first insulator.The device of described device adjustment pin includes at least one through hole, at least one elastic device and and the pin screw thread on described first insulator.This device also can comprise wire body and the packing ring that links to each other with lead.

The present invention also aims to provide a kind of single phase poaer supply plug, comprise insulating body and the pin be made up of first insulator and second insulator, first insulator and the lead that it is characterized in that connecting pin are integrally formed integral body.

Another object of the present invention is to provide a kind of single phase poaer supply plug, it is characterized in that on it being provided with the device that at least one holds standby variety classes pin on insulating body, described storing apparatus is a cavity.

Single phase poaer supply plug according to consuming device use provided by the invention, comprise insulating body 1, by the pin 6 that contact 3 and threaded rod 5 constitute, it is characterized in that: on a surface of insulating body 1, be provided with the device 12 that at least one is settled pin 6 and can adjust pin axial line relative position and angle thereof for carriage.

Described insulating body 1 is formed as one with lead 10.Described device 12 is by flute profile pin holes 12a, the cell body 12b corresponding with it that be provided with below described flute profile pin holes 12a, but accommodate the nut 9 of translation gliding in this groove, and the electric conductor 7 that links to each other with described institute lead that is provided with constitutes on the whole contact surface of described flute profile pin holes 12a and described cell body 12b.Described pin 6 is connected with described nut 9 with packing ring 8a by elastic washer 8, is fixed on the surface of described insulator 1a adjustablely, and with described electric conductor 7 good electrical contact is arranged.

Single phase poaer supply plug according to consuming device use provided by the invention, comprise the insulating body of formation of plug and plug box and the pin 6 that constitutes by contact 3 and threaded rod 5, the last flute profile pin holes that it is characterized in that plug 2 is provided with electric conductor on every side, and this electric conductor links to each other with lead and be integrally formed with lead and plug; Plug closes and is provided with groove corresponding to pin holes.But the nut that translation is arranged in this groove.Plug and plug close be connected after, pin links to each other with nut with through hole by elastic washer.

The single phase poaer supply plug that uses according to consuming devices such as another kind of equipment provided by the invention or instruments, comprise plug box 11, plug 2, the pin 6 that constitutes by contact 3 and boss 4 and threaded junction pole 5, the connecting bolt 15 of box and lid, elastomeric pad 8, nut 9, entrance hole 13, ground wire hole 14 is characterized in that: offer the device 12 that can adjust pin axial line relative position and angle on plug 2.

According to the single phase poaer supply plug that consuming device provided by the invention uses, it is characterized in that described attaching plug insulating body is provided with holds each device with dissimilar pins.

According to single phase poaer supply plug provided by the invention, it is characterized in that on plug 2, offering the flute profile jack 12a of three band steps, perhaps be distributed with three pin holes sections on plug 2, the pin holes 12a that each section is offered by several interruptions constitutes.

According to single phase poaer supply plug provided by the invention, the shape scheme of the pin holes 12a that offers on plug 2 has eight kinds at least, and promptly the vertical axial line of level of the flute profile pin holes 12a that uses of live wire and zero line is in-line, splayed, L shaped, arc; Perhaps the hole line of centres of pin holes 12a is in-line, splayed, L shaped, arc in the pin holes section used of live wire and zero line.

Description of drawings of the present invention is as follows:

Fig. 1 is the vertical view of the single phase poaer supply plug according to the present invention;

Fig. 2 is along A-A line cutaway view among Fig. 1;

Fig. 3 is the vertical view of the single phase poaer supply plug of most preferred embodiment of the present invention;

Fig. 4 is that end view cuts open in the office of attaching plug among Fig. 3;

Fig. 5 is that end view cuts open in the office of the another kind of structure of attaching plug among Fig. 3;

Fig. 6 is another type of attaching plug among Fig. 3;

Fig. 7 also is another type of attaching plug among Fig. 3;

Fig. 8 is the vertical view of single phase poaer supply plug according to another embodiment of the present invention;

Fig. 9 is the cutaway view along the B-B line of the plug of single phase poaer supply shown in Fig. 8;

Figure 10 is that the master of pin 6 shown in Fig. 3 and Fig. 4 looks intention;

Figure 11 is the end view of pin 6 among Figure 10;

Figure 12,13,14, the 15th is opened in the four kinds of shape schematic diagrames of the flute profile pin holes 12a on the plug 2.Lines are represented slotted eye horizontal axis line;

Figure 16,17,18, the 19th is opened in the distribution schematic diagram of the pin holes 12a on the plug 2, pin holes shown in the figure is rounded to be non-limiting, can adopt other different shape, other lines are represented the hole line of centres, and the distribution in hole moves towards to constitute a section.

Figure 20 is the vertical view according to further embodiment of this invention single phase poaer supply plug;

Figure 21 has represented several plug and sockets of the prior art.

Same section is represented by same numeral in the accompanying drawing.

In Figure 12 to Figure 10, shown the distribution of the pin holes of the zero line that live wire and zero line are used.

Below in conjunction with embodiment and accompanying drawing thereof details of the present invention is described:

Fig. 1 and Fig. 2 have represented the preferred embodiment of plug of the present invention, this plug by with the integrally formed insulating body 1 of lead 10 and three upper ends be that contact 3 lower ends are that the pin 6 of threaded rod 5 is formed.

As shown in the figure, be provided with three devices 12 that can adjust pin 6 on a surface of insulating body 1, each constitutes by microscler pin holes 12a and the cell body 12b that is provided with below pin 12a.Microscler pin holes 12a can be a slit-like through-holes unanimous between the higher and lower levels, but best, and the width of pin holes 12a is wide at the top and narrow at the bottom as shown in Figure 2, and is vertical at it, has the microscler through hole of step on the inwall.The length of cell body 12b is more than or equal to the length of above-mentioned microscler pin holes 12a, and its width is greater than the minimum widith of above-mentioned pin holes 12a.Conduction or metal nuts are housed in the cell body 12b.Nut can be a different shape, but preferably can be along cell body translation gliding and don't rotating quadrangle or other polygonal nut in cell body.

Around the lower surface of pin holes 12a or be connected the surface pin holes 12a and cell body 12b whole and be provided with electric conductor 7, this

electric conductor

7 and 10 electric linking to each other of lead more than or equal to pin holes 12a length.

The upper end of pin 6 is a contact 3, can be different shape as sheet (blade) and column (pole) etc.; The lower end is a threaded rod 5.Between contact 3 and threaded rod 5, flange 4 can be set, as shown in Figure 2.Pin 6 is fixed on the insulating body 1 by elastic washer 8, packing ring 8a and nut 9, and communicates with conductor 10 by electric conductor 7.

The such structure of the present invention can make pin 6 carry out translational adjustment in the length range of pin holes 12a, but also can carry out the adjustment of self anglec of rotation in the 360 degree scopes in the horizontal plane vertical with its axial line.Under the situation of the pin that is equipped with different shape, can be as required, transposing is fitted in the pin on the insulating body, to adapt to the requirement of all size socket arbitrarily.

Fig. 3 has represented the schematic perspective view of the most preferred embodiment of single phase poaer supply modular plug of the present invention.This single phase poaer supply plug comprises the insulating body of being made up of plug 1a and plug box 1b 1, the pin 6 of band contact 3, flange 4 and threaded rod 5, and lead 10 and bolt constitute.

Plug 2 is an approximate flat cuboid as shown in Figure 3 and Figure 4, offers the center that three microscler pin 12a and bolt hole 15a are positioned at bayonet cap on its surface.Three pin holes are in triangular distribution, and each pin holes is formed with step on its vertical both sides inwall to make pin holes become width be elongate slot wide at the top and narrow at the bottom.The upper width of pin holes 12a is suitable for elastic washer 8 and packing ring 8a passes through.Lower width only is suitable for pin 6 threaded rods 5 and passes through.

At the inner surface of plug 2, be provided with and the close-connected sheet electric conductor 7 of inner surface around each flute profile pin holes 12a, as shown in Figure 4.Electric conductor 7 links to each other with lead 10.Whole plug cover plate 2 comprises that pin holes 12a, electric conductor 7 and lead 10 are integrally formed.And be formed with protectiveness reinforcing section 16 at plug 2 and lead 10 connecting places.

Plug box 11 is the housing that matches with plug lid plate 2 as shown in Figure 4, is the approximate cuboid that has correspondingly-shaped with plug 2, has three groove 12b and a screwed hole 15b on the inner surface of plug box 11.Screwed hole 15b is corresponding to the bolt hole 15a on the plug 2, three grooves then correspond respectively to three pin holes 12a on the plug 2, but each groove top internal diameter width is greater than the minimum widith of the pin holes 12a of correspondence, and electrical path length can be more than or equal to the length of pin holes 12a in it.Each groove is made of two parts up and down of equal in length.Top internal diameter wider width, bottom part internal diameter is narrower, has formed the step of both sides stretching, extension longitudinally like this at groove, thereby constituted a littler groove between step and step.The top of each groove 12b can hold a quadrangle or other polygonal nut 9, and this nut can be put down in groove 12b and be claimed to slide, but can not rotate an angle of 90 degrees.The little groove in the bottom of each groove 12b only is suitable for threaded rod 5 translation gliding therein of pin 6.Table is formed with the recess that matches with reinforcing section 16 corresponding to plug 2 with the place of lead 10 junctions in plug box 11.

The form of another kind of plug box 11 is, it was made of the wall and the end, see on the figure, have on the inner surface at its end three integrally formed convex groove 12b and a raised thread hole 15b respectively to reply pin cover plate on three pin holes 12a and bolt hole 15a.The internal structure of convex groove 12b is the same with the internal structure of above-mentioned groove 12b, saves detailed description here.

As shown in Figure 3, pin cover plate 2 and pin box 11 are fixed together by bolt 15.Pin 6 is connected with nut 9 among the groove 12b with pin holes 12a, thereby is fixed in adjustably on insulating body 1 surface by elastic washer 8, packing ring 8a.Simultaneously can replace with difform pin 6 as required.

In addition, another kind of distortion is not arranged in the embodiment of this present invention.The device that can hold standby different shape pin is set on above-mentioned plug insulating body 1 exactly.

Specifically, the cavity and a screwed hole of centre of or several appropriate depth is set on the outer surface at the bottom of above-mentioned plug box 11 is just being carried on the back the one side of pin 6 or said the pin box and increases a insulating lid, be called plug box back of the body lid with corresponding bolt hole.Should cover with the plug box by bolt and closely to link together, formed the cavity that holds standby pin, to hold one or several difform pins, as shown in Figure 6, the plug insulating body is just mainly by three parts like this: the plug that links to each other with lead, plug box and plug box back of the body lid are formed, and they all are respectively integrally formed.

The device that holds standby pin 6 on the above-mentioned plug box can have multiple cavity, its lid also multiple pattern as, side cover, partial cover etc.Lid also has multiple mode with the connected mode of plug box; As pivotally connected, plug-type (guide groove or guide tracked) presses formula etc., can select for use as required.

Fig. 7 represents the another kind of distortion of this most preferred embodiment, and promptly the pin holes 12a on the first blind plug cover plate 2 is the narrow elongate slot in the wide centre of two bore, has just formed boss on the vertical inwall in its both sides.The boss spacing is that the narrowest place of pin holes 12a only can be connected with nut 9 by elastic washer 8, packing ring 8a by threaded rod 5, pin 6 pin 6 is fixed on the plug 2 adjustablely.11 in plug box as second insulator is plate shaped, as if a lid.

In another embodiment, shown in accompanying

drawing

8 and 9, single phase poaer supply plug provided by the invention comprises a plug box 11, be opened in the entrance hole 13 on the box wall, ground wire hole 14 with hole 13 symmetries, plug 2 by bolt 15 and box 11 connect as one is opened in three jack 12a on the plug, and pin 6 is fixed in pin holes by elastomeric pad 8 and nut 9.

In this embodiment, plug closes 11 and can be different shape, is circular shown in the figure.The pin holes 12a that is opened on the plug lid plate 2 is three rectangle slotted eyes, be symmetrically distributed with respect to the cover plate center, the vertical axial line of its level be wired to ⊥ word or T font.The slotted eye of two vertical axis parallels of level is respectively applied for live wire pin and zero line pin.The bottom of each rectangle slotted eye longitudinally is formed with shoulder or step, in order to carriage pin 6.Each pin holes 12a just becomes the slotted eye of up big and down small and interior band shoulder like this.

Shown in accompanying

drawing

10 and 11, pin 6 comprises the threaded rod 5 of contact 3, boss 4 and double as junction pole.Contact 3 is flat four prisms cylinder, and the front is rectangle and the upper end is circular-arc; Its length and width can adapt to circular respectively and the also shape of core of rectangle socket.Satisfying the needs of good contact, boss 4 for circular be used for pin holes 12 in the shoulder incompatible carriage pin 6 that matches.The step width of the diameter of boss 4 and pin holes 12 adapts, and realizing movingly, makes the pin 6 can translation and rotation.The width of the diameter of threaded rod 5 and pin holes 12 adapts, and to realize movingly, pin 6 can be rotated.

Abovely describe the present invention, but embodiment of the present invention are diversified in conjunction with most preferred embodiment.Shown in accompanying

drawing

12,13,14,15, enumerate the spread geometry scheme of four kinds of flute profile pin holes 12 here, what show among the figure is the axial line that live wire and zero line are used pin holes.Their positions on plug 2 should be in close entrance hole 13 1 sides.Two in-lines can be communicated with.Splayed, L shaped, arc are not limited to shown in the figure, can inverted image.

Further embodiment of this invention, as shown in figure 20, basic building block just is formed with 12 one-tenth " L " fonts of three pin holes sections that are symmetrical in central distribution with above-mentioned embodiment on cover plate 2.Each pin holes section 12 is made up of several jacks 12a, for example, shown in the figure is three.Can not have step in each pin holes 12a, step can be set as required yet.Pin 6 can be placed in wherein three or two jacks as required.

The arrangement of pin holes section 12 can have various forms.The spread pattern that is used for live wire and zero line pin bore section is shown in accompanying

drawing

16,17,18,19, and circle is wherein represented jack 12a, and lines are represented hole heart line.The quantity in hole is not limited to shown in the figure, and the trend of line is consistent with accompanying

drawing

12,13,14,15 axial lines.

The relative position that the invention has the advantages that the pin axial line is adjustable.Its means are to be provided with a plug can be inserted in the socket of plurality of specifications respectively for the pin holes of pin translation and rotation.

Simultaneously owing in the structure of single phase poaer supply plug of the present invention, pin is linked to each other by electric conductor with lead, and bayonet cap electric conductor and lead can comprise that also the plug box is integrally formed, subtracts widely in the plug volume, and reduced the possibility of lead commissure.Improved fail safe.And manufacturing process is simple, and cost is low, and is easy to use.

Use single phase poaer supply plug of the present invention, can be according to shape, distance and the angle of single phase poaer supply socket aperture core, adjust the distance and the angle of live wire and zero line and earth pin, by the translation roll adjustment from, by rotation hue angle when arranging (particularly flat Kong Xin be splayed).Distance between earth pin and live wire and the zero line pin also can realize by the translation earth pin.

Pin shape provided by the invention is an example, can be along with needs of economic development.Change of shape according to the socket aperture core, produce corresponding adapter, such as square receptacle hole core having occurred, the position of ground wire also is not limited to the position of accompanying drawing regulation of the present invention, such as live wire, zero line, the situation of ground wire tripod on same straight line having occurred, adopt technical spirit of the present invention all can solve.

More than by embodiment the present invention is had been described in detail, but the present invention is not limited to the foregoing description and form shown in the drawings.Those skilled in the art can make any conversion and improvement to plug according to marrow of the present invention and principle in the present technique field, but these conversion and improvement are all in the scope of claim of the present invention.

Claims

1, a kind of single-phase electricity plug includes: the insulating body that constitutes by first insulator and second insulator and form by the pin that contact and threaded rod constitute,

It is characterized in that comprising at least one device that supplies carriage to settle pin and can adjust pin axial line relative position and angle in the described first insulator setting.

2, attaching plug according to claim 1 is characterized in that, described device comprises at least one slit-like through-holes or through hole on described first insulator.

3, according to the described attaching plug of claim 2, it is characterized in that elastic washer that described device also comprises and nut.

4, plug according to claim 2 is characterized in that, has step in the described through hole.

5, plug according to claim 2 is characterized in that, is provided with electric conductor around described through hole.

6, attaching plug according to claim 1 is characterized in that, described first insulator is integrally formed with lead.

7,, it is characterized in that described device also comprises packing ring according to the described attaching plug of claim 3.

8, attaching plug according to claim 2 is characterized in that, described second insulator is being formed with recess corresponding to described through hole with the first insulator opposite side.

9, attaching plug according to claim 1, it is characterized by described first insulator is that bolt is connected or guide rail connects or guide groove connects with described second insulator.

10, according to the described plug of claim 1, it is integrally formed it is characterized by described first and second insulators and lead.

11,, it is characterized in that insulating body is provided with the cavity that at least one holds the standby pin of difformity according to the described plug of claim 1.