CN2842774Y - A power lead - Google Patents
A power lead Download PDFInfo
- Publication number
- CN2842774Y CN2842774Y CN 200520011900 CN200520011900U CN2842774Y CN 2842774 Y CN2842774 Y CN 2842774Y CN 200520011900 CN200520011900 CN 200520011900 CN 200520011900 U CN200520011900 U CN 200520011900U CN 2842774 Y CN2842774 Y CN 2842774Y
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- CN
- China
- Prior art keywords
- jack
- power supply
- plug
- lead wire
- supply lead
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a power lead for an electrical device, which is composed of an elastic cable, wherein a plug which is connected with a power supply is arranged on one end of the elastic cable, and the other end comprises a plug jack part of at least a first and a second plug jacks which are respectively provided with a first and a second plug jack shafts; the first and the second plug jacks are used for respectively and tightly matching a power plug of the electrical device; the elastic cable is combined with the plug jack part by a hole with a central shaft line; at least one plug jack shaft and the central shaft line are in acute angle arrangement; when the power lead is used, the plug jack part can not be disassembled from the elastic cable. More preferably, the power lead only comprises the first and the second plug jacks; the first and the second plug jack shafts are symmetrically arranged corresponding to the central shaft line, and are in the acute angle arrangement with the central shaft line. The power lead can also comprise a safety device selected from one of a residual current device or an overload protection device. The power lead can also comprise at least one switch which enables an operator and at least one plug jack part of the plug to electrically isolate. The utility model also relates to the plug jack part.
Description
Technical field
The utility model relates to power supply lead wire, relates in particular to the power supply lead wire that is used for electric device.
Background technology
With extended line, distribution panelboard and adapter electric wiring is installed to electric device in the prior art.Yet when the operator uses more than an electric device, device of the prior art will produce inconvenience and often cause producing and safe significant problem.This situation sees industrial site especially and is used for the occasion of portable electric apparatus.In the assigned work of commercial situations, often need use two portable electric apparatus.Particularly when the operator works on this difficult locations of ladder, must constantly plug electric device and can reduce productivity.Under certain conditions, in order to give required electric device Change Power, the operator may need to leave the scene.If the scene must guarantee to be in safe condition before the operator can leave, leaving the scene so will bother especially.Before can working on, necessary reconstruction condition for example rearranges element or measurement, and such work equals to lose time.All have to stop work when other electric device requires and must insert power supply once again, such situation can't be satisfactory at every turn.
Extended line can be used to from a long-range electrical power distribution of distribution jack, and they once can only allow an electric device.Yet, because the quantitative restriction of distribution jack make that it is debatable using many extended lines, and the very fast meeting of distribution jack is used up.The quantity that doubles extended line simultaneously must the corresponding number of times that doubles safety inspection and test, and this point also is debatable.Therefore it is inconvenient using additional extended line, and especially can cause some for example at the construction field (site) by line trip, unnecessary potential safety hazards such as fire or electric leakage.
A kind of trial that overcomes the problems referred to above is that the end at extended line connects a distribution panelboard or does the distribution panelboard of a belt length power line.Yet distribution panelboard is that this fixture of assembly that is designed in family's electrical system is powered.Because other insertion element has increased the impost of distribution panelboard, retrained moving of distribution panelboard simultaneously, cause the position of distribution panelboard to be not suitable for being moved, even temporarily move also not all right.Frictional force between the pin of plug and the porch of jack usually is not enough to keep the plug that the weight that is subjected to distribution panelboard influences and other inserts the lead constraint and connects.
A plurality of jacks of same distribution panelboard also can insert multiple arrangement, but that will produce overcurrent and risk of overheating is enough to damage element and causes fire.At these hidden danger, the residual current device as fuse or circuit breaker and so on commonly used satisfies the electrical safety standard.Yet, residual current device can the malfunctioning while security means in support only, can not at first rely on.
Distribution panelboard is often put up with jack, might produce the point of collecting fragment and liquid.In being no more than the engineering that two electric devices are inserted into, it is still charged to remain untapped unnecessary jack.These charged residue jacks are not easy approaching, and it tends to collect conduction fragment, solid and liquid, above-mentioned fragment, solid and liquid will cause the same with the existing shock hazard that the operator is existed between phase and phase or the fault between the phase and ground.
Based on above reason, distribution panelboard seldom is used to industrial site.In addition, based on above-mentioned security consideration, some government administration sections are forbidden distribution panelboard is used for as some specific areas such as construction sites.
Another prior-art devices comprises Electric adapter, double end adapter for example, and it is connected with an extended line.The built in problem of adapter maximum is to insert too many device and may causes overload dangerous on the jack.Based on this reason, adapter often is under an embargo and is used for industrial site as construction site etc.
Since easily lose or stolen adapter more inconvenient, and it is also very difficult to clear their correct number.Adapter must be brought to scene and easily landing, and this may produce substantial risk concerning the operator that other is worked aloft.Because adapter added another plug to the jack junction point in circuit, so based on following two kinds of reasons,, adapter do not conform to demand even being the effect of available they yet.The first, the disengaging jack that plug is not often noted, this causes work to stop and can causing electric spark.The second, the electric junction point between plug and jack, Chang Yin has the impedance that is higher than these conductors and causes unnecessary electrical loss and overheated when not using adapter.Based on above reason, adapter is not suitable for power distribution equipment, especially the portable electric apparatus in the industrial site.
The utility model purpose is to provide a kind of power supply lead wire that improves or overcome at least one weak point in the prior art, and another set of selectable scheme perhaps is provided.
Summary of the invention
The utility model relates in one aspect to a kind of power supply lead wire that is used for electric device, this power supply lead wire is the plug that engages power supply by one one end, the other end is that the elasticity cable that comprises the jack portion of first and second jacks that have the first and second jack axles is respectively formed, first and second jacks are used for respectively closely cooperating with the attaching plug of described electric device, the elasticity cable combines with jack portion by a hole with central axis, wherein at least one jack axle and central axis acutangulate setting, and work as power supply lead wire in use, jack portion can not remove from the elasticity cable.
The utility model relates to a kind of jack portion that is used for power supply lead wire on the other hand, this power supply lead wire is used for electrical installation, this jack portion comprises at least the first and second jacks that have first and second receptacle axis respectively, this first and second jack electrical installation plug separately that is used to closely cooperate, jack portion is connected with the elasticity cable by a hole with central axis, wherein at least one jack axle and central axis acutangulate setting, and when power supply lead wire in use jack portion can not remove from the elasticity cable.
Preferably, first and second receptacle axis all acutangulate setting with central axis.More preferably, the relative central axis of first and second jacks is symmetrical arranged.
Be that this power supply lead wire can comprise at least one safety device arbitrarily.Preferably, this safety device can be a residual current device, or an overload protection arrangement.Be that this power supply lead wire also can comprise the switch that at least one makes at least one jack portion insulation of operator and plug arbitrarily.
Description of drawings
A preferred embodiment of the present utility model illustrates with reference to following relevant accompanying drawing:
Fig. 1 is the stereogram according to the utility model power supply lead wire;
Fig. 2 is the profile of the jack portion of power supply lead wire as shown in Figure 1;
Fig. 3 is the stereogram according to the change example of the jack portion of power supply lead wire of the present utility model.
Embodiment
Fig. 1 illustrates a kind of power supply lead wire 1 of corresponding the utility model preferred embodiment.Power supply lead wire 1 comprises a jack portion 2 that is connected to plug 3 by elasticity cable 4.Elasticity cable 4 can make the operator give two electric devices from distribution wire long distance electricity.Jack portion 2 has first jack 6 and second jack 7 of two the electric device (not shown)s that are used to power.
Elasticity cable 4 is the common cables that can carry normal current.Can be three strands of cables that form in positive pole, negative pole and earth polar electric wire place, also can be the paired cable that has only anodal and negative electrical wire, or be applicable to other kind of model cable of other electric device.Cable links to jack 6,7 with usual way, and any one method that use to make prolongs in the cable firmly is attached in the jack portion 2 it, so that cable and jack portion can not split under the normal condition.
Use average two electric devices in the normal requirement of most of commercial locations, under the situation of extended line, power supply lead wire 1 can reduce the number of times that the operator must exchange plug in using prior art.Only with first and second jacks 6,7 just can avoid distribution panelboard volume in the prior art big, produce unnecessary electric hidden danger and insert problems such as too many device.When power supply lead wire in use jack portion 2 can not remove from elasticity cable 4.Because therefore this non-disconnectable property of jack portion 2 is not vulnerable to the influence of the unnecessary problems such as impedance loss of stock control, independent security inspection, the issuable disengaging of carelessness or electric match point.These problems are to use the double end of extended line existing with the slotting type adapter inside of the back of the body in the conventional art.In illustrated example, when the not shown insertion of plug first jack 6 and second jack 7 by safety sheathing 8 around preventing that fragment and liquid from entering.
Figure 2 shows that the cross sectional representation of jack portion 2.The Reference numeral of element is identical with Fig. 1.Elasticity cable 4 14 extends forward along central axis 13 from the hole.Hole 14 places the opposite side of the jack portion 2 and first and second jacks 6,7.First jack 6 and second jack 7 are the center with its first jack axle 11 and the second jack axle 12 separately.The first jack axle 11 and the second jack axle 12 are orthogonal to the first jack face 15 and the second jack face 16 respectively.The first jack face plane, 15 place and the second jack face 16 intersect certain angle.The first jack axle 11 and the second jack axle 12 all are set as with central axis 13 and acutangulate setting.The also relative central axis 13 with second jack 7 of first jack 6 is symmetry fully.
Structure shown in Figure 2 guarantees that with above description the first and second jack axles 11,12 are not parallel with central axis 13 because some reason this have superiority.Generally speaking, when electric device breaks away from elasticity cable 4 when making that elasticity tension appears in the pin place of jack portion 2 plugs, plug is easy to that disconnection connects or insert not tight.Two common examples leave power supply lead wire 1 when too far away or when jack portion 2 hangs as the operator exactly, for example work on ladder or from high level reception power supply.Because the first jack axle 11 and the second jack axle 12 shift into certain angle with central axis 13, the elasticity tension at pin place acts on the jack axle and will increase the frictional force between them and prevent to unplug.The structural design of symmetry angle also makes jack portion 2 have narrower profile and lighter weight simultaneously like this.When jack portion was temporarily lifted or be mobile, its lighter weight can help being connected between plug and the jack portion 2.The final benefit of this structure is that elasticity cable 4 makes first and second jacks 6,7 in the jack portion 2 to face up.And on the other hand, the jack in the distribution panelboard all faces up and is provided with and is easy to catch conducted electricity fragment and the liquid that falls.Based on this reason, distribution panelboard and other heads devices do not wish to be used to industrial site in the prior art.
Fig. 2 also shows the residual current device 10 that comprises testing button 9 and reboot button 5 that places jack portion 2 inside.When the current imbalance that flows in the elasticity cable 4 and flow out or when not waiting, residual current device insulate first and second jacks 6,7.This imbalance is because aging detected the obtaining of leakage current that causes of insulation resistance at first.Residual current device 10 is preferably the residual current device that needs high current condition before buffer circuit as fuse and circuit breaker.Because many distribution mouths do not have enough ground protections, the power supply lead wire 1 that therefore comprises residual current device 10 has improved fail safe.In addition, the operator also usually will work in remote workplace.In remote workplace, residual current device may be by the permanent safe working conditions that can't guarantee the operator when being installed on the distribution mouth.Go to the job site of appointment with going up power supply lead wire 1, operators can be protected by the residual current device of carrying, and test till their satisfaction.
(not shown) can be provided with the 3rd jack near first and second jacks 6,7 in a further advantageous embodiment.The 3rd jack axle and central axis 13 that the 3rd jack has acutangulate, and these three jacks are around central axis 13 symmetric arrays.
(not shown) in another embodiment, residual current device 10 is one with elasticity cable 4.In this embodiment, jack portion 2 may gentlyer maybe can make the simple and easy on/off switch of one selectively portable unit be cut off the power supply.Among this embodiment residual current device is provided with near plug 3, so that the operator is protected when insulation fault appears in the length along elasticity cable 4.In an optional embodiment, power supply lead wire 1 merges with the overload protection arrangement of fuse or circuit breaker and so on, to prevent to continue overcurrent.
As a kind of possibility, jack portion 2 is in aggregates with elasticity cable 4.Such jack portion 2 can not connect wires again.This form has the workplace of unusual strict security management advantageous at some.As alternative dispensing means, especially be not strict with so in the application of safety, jack portion 2 can be welded separately by a qualification technician and be connected in elasticity cable 4.If jack portion 2 lines can use behind elasticity cable 4 and the power supply lead wire 1 jack portion of not dismounting combination just can't split.
Mode of connection shown in Figure 2 is arbitrarily, and other modes that are electrically connected to jack 6,7 also can adopt.
In another possibility, the utility model comprises a kind of power supply lead wire that is used for electric device, this power supply lead wire has a plug that is used to engage power supply by an end, and the other end have one comprise be used to closely cooperate electrical installation separately the elasticity cable of the jack portion of at least the first and second jacks of plug form, the elasticity cable enters jack portion by a hole with central axis, wherein first socket surfaces be set as with second socket surfaces at angle, and when power supply lead wire in use jack portion can not remove from the elasticity cable.
Fig. 3 illustrates the different visual angles figure according to the jack portion in the power supply lead wire of the present utility model.The jack portion 2 that is connected in elasticity cable 4 can make the operator that two electric devices are powered.Jack portion 2 has first jack 6 and second jack 7 that is used for two electric device power supplies.
Below only be the description to the utility model preferred embodiment, in not exceeding the utility model institute limited range, it is conspicuous for a person skilled in the art that institute makes an amendment.
Claims (5)
1, a kind of power supply lead wire that is used for electric device, it is characterized in that, described power supply lead wire is the plug that engages power supply by one one end, the other end is that the elasticity cable that comprises the jack portion of at least the first and second jacks that have the first and second jack axles is respectively formed, described first and second jacks are used for respectively closely cooperating with the attaching plug of described electric device, described elasticity cable combines with described jack portion by a hole with central axis, wherein at least one described jack axle and described central axis acutangulate setting, and when described power supply lead wire in use, described jack portion can not remove from described elasticity cable.
2, power supply lead wire as claimed in claim 1 is characterized in that, described power supply lead wire only has first and second jacks, wherein, and the described relatively central axis symmetric arrays of the described first and second jack axles, and acutangulate setting with described central axis.
3, power supply lead wire as claimed in claim 1 or 2; it is characterized in that; described power supply lead wire also comprises: select the safeties of one both at least from residual current device or overload protection arrangement, or at least one makes the switch of the described jack of at least one of operator and described plug portion electric insulation.
4, a kind of jack portion that is used for power supply lead wire, described power supply lead wire is used for electric device, it is characterized in that, described jack portion comprises at least the first and second jacks that have the first and second jack axles respectively, described first and second jacks closely cooperate with the attaching plug of described electric device respectively, described jack portion is by a Kong Yuyi root elasticity cable splice with central axis, wherein at least one described jack axle and described central axis acutangulate setting, and when described power supply lead wire in use, described jack portion can not remove from described elasticity cable.
5, jack as claimed in claim 4 portion is characterized in that, described jack portion only has first and second jacks, wherein, and the described relatively central axis symmetric arrays of the described first and second jack axles, and acutangulate setting with described central axis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2004905322 | 2004-09-15 | ||
| AU2004905322A AU2004905322A0 (en) | 2004-09-15 | A Power Lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842774Y true CN2842774Y (en) | 2006-11-29 |
Family
ID=37446645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520011900 Expired - Fee Related CN2842774Y (en) | 2004-09-15 | 2005-09-15 | A power lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842774Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103416506A (en) * | 2013-08-09 | 2013-12-04 | 苏州市西山宏运材料用品厂 | Safety tea frying machine |
-
2005
- 2005-09-15 CN CN 200520011900 patent/CN2842774Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103416506A (en) * | 2013-08-09 | 2013-12-04 | 苏州市西山宏运材料用品厂 | Safety tea frying machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DILEIKETE ASSET INVESTMENT GROUP CO., LTD. Free format text: FORMER OWNER: TASSONE PROPERTY GROUP PTY LTD. Effective date: 20100826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100826 Address after: New South Wales Patentee after: Real Estate Investment Group Co., Ltd. Address before: New South Wales Patentee before: Tassone Property Group Pty Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: WEBEREED CO., LTD. Free format text: FORMER OWNER: DIRECT CAPITAL INVESTMENT GROUP INC. Effective date: 20130104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130104 Address after: New South Wales Australia Patentee after: Wei Reed Co., Ltd. Address before: New South Wales Patentee before: Real Estate Investment Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20130915 |