Abstract:
A composite simple plug comprises an insulation case, a plurality of terminals, a connector, and a plug of a network line or a plug of a phone line. The insulation case has a trough. The terminals are set in the insulation case and appeared on the trough. The connector is set in the front of the insulation case. The connector is connected electrically to the terminals. Make use of this, the insulation case can be applied to switch all kinds of plugs. The composite simple plug can connect with a plug of a network line or a connecting unit to connect with all kinds of plugs of a phone line. It makes the plug of a phone line be switched to the plug of a network line. The composite simple plug provides a function of simply switching and it is more convenient for using.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to a composite simple plug, and in particular to a structure for connecting with a connector and a plug of a network line or a phone line, changing into all kinds of connectors according to the request, and switching to the plug of a network line or a phone line. 
   2. Description of Prior Art 
   The conventional switching plug can provide a function of switching two kinds of plugs according to request, for example, switching a plug of a phone line to a plug of a network line. 
   Taiwan Patent Application No. 94217851 (or its U.S. counterpart, U.S. patent application Ser. No. 10/967,243), entitled “Simple Switching Plug Structure” previously filed by the inventor of the present invention, discloses an insulation body, several terminals and a switching member. The insulation body has several terminal troughs. Terminals are provided in the terminal troughs, respectively. The switching member is pivotably connected on the insulation body to adjust its rotation according to the request. Although this patent document achieves to switch different kinds of plugs, namely, switch a plug of a phone line to a plug of a network line by the switching member, there is still some insufficiency in use. 
   Therefore, in view of the above drawbacks, the inventor proposes the present invention to efficiently overcome the drawbacks of prior art based on his deliberate researches and expert experiences. 
   SUMMARY OF THE INVENTION 
   The object of the present invention is to provide a composite simple plug for adapting the insulation case to all kinds of plugs. 
   Another object of the present invention is to allow the insulation case serving as an adapter to connect with a plug of a network line or a plug of a phone line to switch to all kinds of plugs. A connecting unit is used to switch a plug of a network line to a plug of a phone line, or switch a plug of a phone line to a plug of a network line. The connecting unit is connected between the insulation case and the plug of the phone line, and further is formed into a composite simple plug structure. With the above arrangement, the present invention is simple in structure, small in size, less in cost, convenient for carrying and easy to switch to all kinds of plugs. 
   In order to achieve the above object, the present invention provides a composite simple plug comprising an insulation case provided with a trough, a plurality of terminals and a connector. The terminals are provided in the insulation case. One end of each terminal appears on the trough. The connector is provided in the front end of the insulation case and is electrically connected to the other end of the terminals. 
   The trough of the present invention is movably pivoted to a plug of a network line. The plug of the network line is electrically connected with the terminals. Alternatively, the trough is further movably pivoted to a connecting unit. A plug of a phone line is pivoted to the inside of the connecting unit. The plug of the phone line is electrically connected with the terminals. 
   In order to further understanding the technique, method and effect utilized by the present invention, the detailed description and the technical contents of the preferred embodiments of the present invention will be explained with reference to the accompanying drawings. However, it should be understood that the drawings and the description are illustrative but not used to limit the scope of the present invention. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is an exploded perspective view showing a connector of a first embodiment of the present invention connected to a plug of a network line; 
       FIG. 2  is an exploded perspective view showing a connector of a second embodiment of the present invention connected to a plug of a network line; 
       FIG. 3  is an exploded perspective view showing a connector of a third embodiment of the present invention connected to a plug of a network line; 
       FIG. 4  is a schematic view showing the assembled state in which the present invention is connected to a plug of a network line; 
       FIG. 5  is an exploded perspective view showing that the present invention is connected to a connecting unit and a plug of a phone line; 
       FIG. 6  is a perspective view showing the assembled state in which the connecting unit of the present invention is connected to a plug of a phone line; 
       FIG. 7  is a perspective view showing the assembled state in which the connecting unit of the present invention is connected to an insulation case; 
       FIG. 8  is a schematic view showing the assembled state in which the present invention is connected to a plug of a phone line and the connecting unit; 
       FIG. 9  is an exploded perspective view showing a connector of a fourth embodiment of the present invention connected to a plug of a network line; 
       FIG. 10  is an exploded perspective view showing a connector of a fifth embodiment of the present invention connected to a plug of a network line; 
       FIG. 11  is an exploded perspective view showing a connector of a sixth embodiment of the present invention connected to a plug of a network line; 
       FIG. 12  is an exploded perspective view showing that the connector of the present invention is connected to a plug of a phone line; 
       FIG. 13  is a schematic perspective view of a first embodiment in which the second connector of the present invention is connected to a plug of a phone line; and 
       FIG. 14  is a schematic perspective view of a second embodiment in which the second connector of the present invention is connected to a plug of a phone line. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   With reference to  FIGS. 1 to 4 , the present invention provides a composite simple plug comprising an insulation case  10 , a plurality of terminals  20  and a connector  30 . The insulation case  10  is made of insulating materials, such as plastics. One side of the insulation case  10  is provided with a trough  11 . The rear end of the trough  11  can be hollowed out. The wall face of the trough  11  is further provided with a pair of latching portions  12  and a pair of first pivoting portions  13  corresponding to each other. Both latching portions  12  protrude on the left and right wall face of the trough  11 , respectively, and provided adjacent to the front end of the trough  11 . The end face of the latching portion  12  is curved. Both first pivoting portions  13  are provided on the left and right wall faces of the trough  11 , respectively, and provided adjacent to the rear end of the trough  11 . The first pivoting portion  13  can be a circular hole or a cylinder. 
   The terminals  20  are made of conductive materials, such as copper. The number of the terminals is not limited and these terminals are equidistantly provided in the insulating case  10 . One end of each terminal  20  is bent and appears on the trough  11 . The connector  30  is provided in the front end of the insulation case  10  and electrically connected to the other end of each terminal  20 . The connector  30  can be a USB of male type (as shown in  FIG. 1 ) or female type (as shown in  FIG. 2 ). Alternatively, the connector  30  can be an audio signal terminal (as shown in  FIG. 3 ). With the above arrangement, the insulation case  10  of the present invention functions as an adapter via the terminals  20  and the connector  30 . 
   In the present invention, the terminals  20  and the connector  30  are provided on the insulation case  10 . The trough  11  can be movably pivoted to an 8-pin plug  40  of a network line. The terminals  41  on the plug  40  of the network line are electrically connected to the terminals  20  on the insulation case  10 . The plug  40  of the network line can be further provided with two second pivoting portions  42 . The two second pivoting portions  42  are provided on both sides of the plug  40  of the network line  40 , respectively. The second pivoting portion  42  can be a cylinder or circular hole. The second pivoting portion  42  of the plug  40  of the network line can be movably pivoted to the first pivoting portion  13  of the insulation case  10 , so that the plug  40  of the network line can be movably pivoted on the trough  11  of the insulation case  10 . Both sides of the front end of the plug  40  of the network line are provided with a notch  43 , respectively. Each notch  43  of the plug  40  of the network line abuts against the latching portion  12  of the trough  11 , so that the plug  40  of the network line can be movably fixed on the trough  11  of the insulation case  10 , thereby avoiding the plug  40  of the network line from swaying. 
   Therefore, the present invention utilizes the insulation case  10  to connect to the plug  40  of the network line and the connector  30 , so that the insulation case  10  can be directly switched to two kinds of plugs. The plug  40  of the network line can be switched to the connector  30  (such as USB) and thus inserted into an electronic information product, such as a notebook or a desktop computer, allowing the manufacturers of the electronic information products to simplify the necessary members of a socket of the network line. Further, the thickness of the electronic information product can be reduced to achieve a small weight and compact size. Also, when the user goes out, it is convenient to carry the present invention without occupying too much space. Further, the present invention can be easily connected to the plug  40  of the network line at any time without any other associated transmission line. 
   Further, as shown in  FIGS. 5 to 8 , since the 8-pin plug  40  of the network line and the 4-pin plug  60  of the phone line are different in size, the trough  11  of the insulation case  10  can be further movably pivoted to a connecting unit  50 . The connecting unit  50  has a support  51  and side arms  52  on left and right sides. The inner edge of each side arm  52  is provided with a third pivoting portion  53  adjacent to the rear end and corresponding to each other. The third pivoting portion may be a circular hole or a cylinder. The outer edge of each side arm  52  is provided with a fourth pivoting portion  54  adjacent to the rear end and corresponding to each other. The fourth pivoting portion may be a circular hole or a cylinder. Both third pivoting portions  53  mutually correspond to the fourth pivoting portions  54 . The front end of the plug  60  of the phone line has terminals  61 . Each side of the plug  60  is provided with a fifth pivoting portion  62  adjacent to the rear end and corresponding to each other. The fifth pivoting portion may be a circular hole or a cylinder. The front end of the each side arm  52  is provided with a notch  55 . The top of each side arm  52  can be further provided with a curved fixing portion  56 . With the third pivoting portion  53 , the connecting unit  50  can be movably pivoted to the fifth pivoting portion  62  of the plug  60  of the phone line. The fourth pivoting portion  54  of the connecting unit  50  can be movably pivoted to the first pivoting portion  13  of the trough  11 , so that the connecting unit  50  and the plug  60  of the phone line can be movably pivoted on the trough  11  of the insulation case  10 . The notch  55  of each side arm  52  abuts against the latching portion  12  of the trough  11 , thereby achieving the electrical connection between the terminals  61  of the plug  60  of the phone line and the terminals  20  of the insulation case  10 . As a result, the present invention can be adapted to different kinds of plugs (such as the plug  40  of the network line or the plug  60  of the phone line). When the plug  60  of the phone line is pivoted into the connecting unit  50 , the two fixing portion  56  are used to fix the top ends of the plug  60  of the phone line, thereby avoiding the plug  60  of the phone line from swaying. 
   Alternatively, the connecting unit  50  can be only provided with two side arms  52 . The two side arms  52  are simultaneously pivoted to the plug  40  of the network line and the insulation case  10 , thereby providing the same effect. 
   Further, as shown in  FIG. 9 , the connector  30  can be also a DC plug of male type or female type (not shown). Alternatively, as shown in  FIG. 10 , the connector  30  can be a connector for a portable electronic product, such as mobile phone or PDA. Further, as shown in  FIG. 11 , the connector  30  can be also a video signal terminal. 
   Alternatively, as shown in  FIG. 12 , in the present invention, the shape and structure of the plug  60  of the phone line can be modified in various ways. The present embodiment is further provided with a connector  63  made of insulating materials (such as plastics). The connector  63  allows the leads (not shown) of the plug  60  of the phone line to penetrate into its interior. The front portion of the connector  63  is provided with several line grooves  64 . Those leads are inserted and arranged into the interior of the line grooves  64  through the rear end of the connector  63 . The leads are previously connected to the connector  63 , and then the connector  63  is inserted into the rear end of the plug  60  of the phone line. With the connector  63 , the leads can be guided into the front end within the plug  60  of the phone line, so that the connector  63  can be engaged and fixed within the plug  60  of the phone line. The connector  63  and the plug  60  of the phone line are combined with each other to form one piece, so that the electrical connection between the terminals  61  of the plug  60  of the phone line and the conductors within the leads can be achieved. Both fifth pivoting portions  62  are provided on left and right sides of the connector  63 . The third pivoting portion  53  of the connecting unit  50  can be movably pivoted on the fifth pivoting portion  62  of the connector  63 . 
   Further, as shown in  FIG. 13 , in the present invention, the rear end of the plug  60  of the phone line can be also connected with a second connector  70 . The terminals (not shown) of the plug  60  of the phone line are electrically connected to the terminals (not shown) of the second connector  70 , so that the second connector can be formed into an adapter. The second connector  70  can be an IEEI1394 connector. Alternatively, as shown in  FIG. 14 , the second connector  70  also can be a HDMI (High-Definition Multimedia Interface) connector. 
   According to the above, the insulation case  10  of the present invention can be connected to the plug  40  of the network line so as to switch to two kinds of plugs. With its ingenious structure, different kinds of connector  30  can be changed according to the request and thus the present invention functions as an adapter. Further, with the connecting unit  50 , the plug  40  of the network line can be changed to different kinds of plugs  60  of the phone line, so that the plug  60  of the phone line can be switched to the plug  40  of the network line. With the simple switch of the connecting unit  50 , the insulation case  10  can be simultaneously applied to different kinds of plugs  40  of the network line or the plugs  60  of the phone line. Therefore, the present invention is simple in structure, easy to manufacture, small in size, less in cost, convenient to carry, and easy to switch to all kinds of plugs. 
   Although the present invention has been described with reference to the foregoing preferred embodiments, it will be understood that the invention is not limited to the details thereof. Various equivalent variations and modifications can still be occurred to those skilled in this art in view of the teachings of the present invention. Thus, all such variations and equivalent modifications are also embraced within the scope of the invention as defined in the appended claims.