(a) Field of the Invention
The present invention relates to outdoor sets of plug and socket and more particularly to an outdoor set of plug and socket wherein a plug is further provided with an uprightly erected wall having at least a retaining flange to be engaged with a recessed portion of a movable cover of the socket when the plug is inserted into a socket of the socket box. Thereby, the plug will be securely attached with the socket box.
(b) Description of the Prior Art
Sets of plug and socket of the prior art mainly utilize the coupling between a plug and a socket box to achieve an electric connection for continuing electric power flow.
An outdoor set of plug and socket of the prior art comprises a plug, a control box integrally connected to the rear end of the plug, and a socket box for the insertion of the plug. The socket box has at least a socket provided with a movable cover, whereby the movable cover will retain the plug when it is inserted into a socket. Each socket can be a three-hole socket or a twin socket. However, the retaining effect of the movable cover, by simply tilting against the plug, is not strong enough to prevent the plug from falling off the socket when the plug is experiencing an external force.
The primary objective of the present invention is to provide an outdoor set of plug and socket comprising a control box, a plug and a socket box having at least a socket provided with a movable cover. The top surface of the plug is further provided with an uprightly erected wall having at least a retaining flange to be engaged with a recessed portion of the movable cover when the plug is inserted into a socket of the socket box. Thereby, the plug will be securely attached with the socket box, and any electrical shock resulting from a loose connection will be prevented.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawings.
Referring to
The outdoor set of plug and socket 1 of the present invention further comprises a control box 11 and a plug 12. The plug 12 is provided with an uprightly erected wall 121 having retaining flanges 122 on two sides or a retaining flange 122 on a selected side, whereby the recessed portions 24 of a movable cover 21 can be engaged with a corresponding retaining flange 122, and whereby the plug 12 can be securely retained on one of the sockets 22 of the socket box 2, as shown in
The plug 12 is not restricted to any particular type, and a retaining flange 122 on one side of the plug 12 capable of being engaged with the recessed portion 24 under the movable cover 21 of a socket box 2 will suffice and is not restricted to any particular shape.
Further, each of the retaining flanges 122 has an inwardly inclined top edge 123 for guiding the erected wall 121 into the recessed portion 24 of a corresponding movable cover 21.
The plug 12 is integrally combined with the control box 111 that is provided with a predetermined control circuit (including a PC board) and an adapter. The inner space of the plug 12 is filled with insulating glue so that it is water-proof and can be used outdoors. Further, two lateral sides of the socket box 2 are each provided with a hole with a screw thread 26, so that a tube of wires can go through the socket box 2.
The present invention is thus described, and it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be considered equivalent in the art are intended to be included within the scope of the following claims.
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