Patent Document

BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The invention relates to a Removable socket stand for extension wires for use in outdoor garden and lawn, wherein a conical sustainer is provided at the bottom of the main body of the socket stand so as to temporally fix the socket stand on the ground of garden and lawn, and a plurality of elements for ensuring electrical security and lighting in the dark are also provided thereof 
     2. Description of the Prior Art 
     As it can be used to supplement inadequate installation of sockets in a residence, factory, or the like, a removable socket stand for extension wires is widely employable. It is really convenient for a socket or sockets to be removable here and there, indoor or outdoor in any desired places where electric power is required. But there arises a problem that electrical security can not be ensured as the socket stand is removed by pulling the extension wires around outdoor wet or muddy environments in stead of installing it firmly and securely on the safety place. As a result, there have been too many deplorable accidental cases arisen from careless handling of such removable socket stands by ordinary citizens. 
     In order to solve the problems inherent to the conventional technique described above, researches and developments have been carried out for a long time, and finally the inventor comes to realization of the present invention which will now be disclosed hereinafter. 
     SUMMARY OF THE INVENTION 
     It is an object of the present invention to provide a removable socket stand for extension wires which can be sustained on the ground with a proper height thereabove to keep away from the puddles of the saturated field such that the user may securely use electricity without the fear of being electrocuted. 
     It is another object of the present invention to provide a removable socket stand for extension wires having an insulated transparent cover to protect a main switch of the socket stand so as to ensure water tightness of the main switch and protect the user&#39;s safety. In addition, a shielded cover is also provided for individual sockets so that the Sockets can be shielded in case they are not in use thereby protecting possible injury to a third person who touches them, or infringement of foreign substances. 
     It is still another object of the present invention to provide a photo emission equipment in the main body of the socket stand, which, when being placed in a dark place, where a photo sensor installed thereat can not detect light, a photo emission element starts to emit light and through focusing effect of a light focusing plate disposed on the main body, the brightness of light is intensified such that the user is able to identify the socket position in the dark and facilitate his/her night work. 
     To achieve these and other objects, the socket stand of the present invention comprises a main body, a  shaped (inversely U shaped) pull lever, a photo emission equipment with light focusing plate and a conical sustainer. The main body of the socket stand further consists of a front case and a rear case with a groove formed along each bonding side edge of the two cases. A sliding portion at each lower end of the  shaped pull lever is fitted in the groove and is slidable therein when the two cases are combined with each other. A semi-circular recessed slot having screw threads on its inner surface is formed at the respective bottom of each of the two cases for screw combining with the conical sustainer. A opening is formed at the surface of the rear case for fastening the light focusing plate. A circular hole is provided above the opening for exposedly mounting a photo sensor thereon. The main switch is mounted on another opening formed on the surface of the front case and protected by an insulated transparent cover so as to ensure both water tightness and reliable electrical insulation. The socket is also protected by a shielding cover so that the socket can be shielded at the time it is not in use thereby protecting possible injury to a third person or infringement of foreign substances. The photo emission equipment which including a photo emission element and the above mentioned photo sensor, is located at the back of the surface where the main switch and the sockets are disposed. When the front and the rear cases are fitted with each other, the photo emission element aligns with the light focusing plate mounted on the surface of the rear case thereby intensifying the brightness of light. The conical sustainer is used to fix the socket stand on the ground. 
    
    
     THE BRIEF DESCRIPTION OF THE DRAWINGS 
     The accompanying drawings, which are included to provide a fuller understanding of the invention and incorporated in and constitute a part of this specification, illustrate the enbodiment of the invention and together with the description serves to explain the principles of the invention, wherein: 
     FIGS. 1A and 1B are three dimensional views of a removable socket stand of the present invention; 
     FIG. 2 is an exploded perspective view of the removable socket stand of the present invention; 
     FIGS. 3A and B are illustrative drawing showing the inner construction of the removable socket stand according to the present invention; and 
     FIGS. 4A and B are illustrative drawing showing how the removable socket stand is carried out in an embodiment of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Hereinafter, the best mode for carrying out the present invention will be described more fully below with reference to attached drawings: 
     Referring to FIGS. 1A,  1 B, FIG.  2  and FIGS. 3A,  3 B simultaneously, the socket stand for extension wires for use in outdoor garden and lawn comprises a main body  1  of the socket stand, a  shaped pull lever  2 , a conical sustainer  3 , a photo emission equipment  4 , a light focusing plate  5 , an insulated transparent cover  6 , a main switch  7  for power supply, and a shielding cover  8  for individual socket. The main body  1  further includes a front case  11  and a rear case  12  combined together. Semi-circular recessed slots  113 ,  124  having screw threads on their inner surfaces are formed at the respective bottoms of both the front and the rear cases  11  and  12 . Two grooves  112  and  113  are formed along respective bonding side edges of the front and the rear cases  11 ,  12  for two sliding portions  21   a  and  21   b  at both lower ends of the  shaped pull lever  2  to slide along. An opening  122  is provided on the surface of the rear case  12  for engaging several stoppers  51  protruded out of the circumference of the light focusing plate  5  with corresponding engaging holes  1221  disposed around the edge of the opening  122  such that the light focusing plate  5  is able to stride thereover and fixed to the rear case  12 . The main switch  7  is mounted over another opening  111  formed on the surface of the front case and protected by an insulated transparent cover  6  so as to ensure water tightness and reliable electrical insulation. The socket  9  is also protected by a shielding cover  8  so that the socket  9  can be shielded at the time it is not in use thereby it is protected from possible injury to a third person or infringement of foreign substances. The photo emission equipment  4 , which including a photo emission element  41  and a photo sensor  42 , is located at the back of the surface where the main switch  7  and the sockets  9  are disposed such that it is accommodated in the main body  1 . When the photo emission equipment  4  is located in a dark place so that the senser  41  can not detect light, the photo emission element  42  which belongs to a high intensity LED functions to emit light for illuminating the surrounding. As the front and the rear cases  11  and  12  are combined together, two sliding portions  21   a  and  21   b  at both lower ends of the  shaped pull lever  2  are able to slide along two grooves  112  and  113  formed at the two sides of the main body  1 . When the two cases  11  and  12  are fitted each other, the photo emission element  42  aligns with the light focusing plate  5  mounted on the rear case  12  thereby the brightness of light is intensified. The light focusing plate  5  is made water tight and the sensor  41  exposedly mounted on a circular hole  121  formed on the rear case  2 . There are two semi-circular recessed slots  113  and  114  having screw threads on their inner surfaces formed at the respective bottoms of the two cases  1  and  12  joining into a resultant threaded hole for screw combining with an upper threaded portion  32  of the conical sustainer  3  so that the socket stand is able to stand on the ground of lawn or garden by insertion of the conical sustainer  3  thereinto. Meanwhile, a warning mark  31  is provided at a proper height on the conical sustainer  3  to warn the user in the case the conical sustainer  3  is inserted too much into the ground so as to prevent water infringement to the socket stand. As a result, danger of short circuit is eliminated. 
     FIGS. 4A and 4B are embodiment of the removable socket stand according to the present invention. As shown in FIG. 4, the main body  1  can be made fixedly standing on muddy ground  10  or on lawn with the conical sustainer  3  inserted thereinto such that the main body  1  is isolated from the puddles on the ground and the user&#39;s security is assured. In the evening, the surrounding is illuminated by the photo emission element  42 , and moreover, brightness is further intensified by the light focusing function of the light focusing plate  5  so as to help the night work. When it is intended to pull out the main body  1  from the ground  10 , the user may draw it up by grasping the  shaped pull lever  2  without directly touching the main body  1  to prevent possible danger. 
     From the above description, it is understood that with the function of a plurality of attached elements, the  shaped pull lever, the conical sustainer, the insulated transparent cover on the main switch, the shielding cover for individual socket, the removable socket stand for extension wires of the present invention can successfully protect the user&#39;s security from an electric hazard. In addition, the photo emission equipment together with the light focusing plate is able to help performing night work securely and efficiently. 
     Other embodiments of the present invention will become obvious to those skilled in the art in light of above disclosure. It is of course also understood that the scope of the present invention is not to be limited by the foregoing description, but only by the following claims.

Technology Category: h