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The extension socket 1 has a positioning hole 11 disposed near the top end of the rear of extension socket 1.
The positioning sleeve 2 has a first rim 21 extending from a top end and a second rim 22 extending from a bottom end of the positioning sleeve. The first rim 21 has a slot 211 disposed thereon, an opening 23 is disposed on a front face of the positioning sleeve 2 and joining with the slot 211 of the first rim 21, an outlet 24 also joins with the opening 23 at the bottom of the opening 23, and a plurality of positioning slots 25 are equally spaced and disposed on a rear face of the positioning sleeve 2. Two parallelly-formed hollow rods 26 extend from the topmost one of the positioning slot 25 of the positioning sleeve 2 and have screw threads implemented therein. An axle hole 27 is disposed between two hollow rods 26 and has a bolt 3 protruded through it. A retaining plate 31 extends from the bolt 3 to divide the bolt 3 into a first half and a second half. The first half protrudes through the axle hole 27 of the positioning sleeve 2. The second half has a spring 4 wrapped around it, while one end of the spring 4 is retained by the retaining plate 32. A cover plate 5 joins with two hollow rods 26 of the positioning sleeve 2, and screws 51 go through the cover plate 5 and two hollow rods 26 to let the cover plate 5 closely joined with the positioning sleeve 2 near its top end of the rear face. With the second half of the bolt 3 protruding the through hole 52 of the cover plate 5, when the second half of the bolt 3 is pulled outwardly, the first half of the bolt 3 would come out of the axle hole 27 of the positioning sleeve 2. Meanwhile, the spring 4 of the bolt 3 is squeezed, therefore, when the second half of the bolt 3 is not being pulled, the bolt 3 would return to the original position by the elastic force of the spring 4.
The extension socket 1 is inserted in the positioning sleeve 2 for the first half of the bolt 3 near the top end of the rear of the positioning sleeve 2 to go through the positioning hole 11 on the rear of the extension socket 1 to fix the extension socket 1 firmly in position and for the extension socket 1 not to break away from the positioning sleeve 2 easily. The socket panel 112 on the extension socket 1 protrudes from the opening 23 of the positioning sleeve 2 to let a plug of an electrical appliance to plug in the extension socket 1, and an outlet 24 guides the power cable 13 of the extension socket 1 to extend out of the positioning sleeve 2.
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Furthermore, the extension socket 1 can be separated from the positioning sleeve 2 to be used indoors directly.
The present invention provides an extension socket structure, which compares with other traditional extension sockets, is advantageous in:
1. The present invention provides an extension socket structure, which places the extension socket inside a positioning sleeve and winds the power cable of the extension socket around the positioning sleeve to provide a convenient way to keep the extension socket.
2. The present invention provides an extension socket structure, which places the extension socket inside a positioning sleeve and has a cone screwed to the bottom of the positioning sleeve and implemented for fixing the extension socket to a lawn, a ground or sands to provide outdoor use.
3. The present invention provides an extension socket, which can be used indoors directly with any structural change.
Many changes and modifications in the above described embodiment of the invention can, of course, be carried out without departing from the scope thereof. Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claims.