IP Library Granted Patent US 12665365
Granted Patent B2
US 12665365 · App. 18/407,590 · Granted Jun 23, 2026

Extension lamp socket

Inventor: Te-Shui Peng (Taoyuan City, TW)
Assignee: Rich Brand Industries Limited
H01R33/94H01R33/22
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Quick Facts
Patent No.
US 12665365
App. No.
18/407,590
Granted
Jun 23, 2026
Kind
B2
Abstract

An extension lamp socket is disclosed and the extension lamp socket can be screwed into the screw connecting part of the conventional lamp socket for combination. The screw connector of a light bulb can be screwed in from the bottom end of the shell wall of the extension lamp socket and be fixed with the internal threaded convex body. In this way, the power source of the conventional lamp socket can be connected with the light bulb via the extension lamp socket. When installing a light bulb that occupies a large space, the extension lamp socket can be used to lower the screw connecting position. When installing a light bulb in a narrow or special space, the extension lamp socket can be used to extend the screw connecting position outward to facilitate installation of the light bulb.

Claims (42)

1 . An extension lamp socket, comprising,

a first half shell and a second half shell, the first half shell and the second half shell each comprising, a respective top section having a top end, a respective bottom section having a bottom end, a respective internal space, two side edges, each of the first half shell and the second half shell further comprising non-conducting components;

a first electrode plate,

a second electrode plate, and

an electrode holding ring,

wherein:

a plurality of clamping plates are horizontally configured in a middle section formed by the respective internal spaces of the first half shell and the second half shell, a front edge of each of the plurality of clamping plates is provided with a clamping slot, and two of the plurality of clamping plates are located within the bottom section of the first and second half shells, respectively,

the two side edges of the first half shell and the two side edges of the second half shell are provided with a structure capable of snapping and jointing the first half shell and the second half shell,

the first half shell and the second half shell are respectively formed with a penetrating tube slot between the two clamping plates located within the bottom section of the first and second half shells, respectively,

the bottom section of the first half shell and the bottom section of the second half shell are in a shape of an outwardly expanded cover wall,

an outer edge of the top section of the first half shell and an outer edge of the top section of the second half shell are both defined as a side threaded convex body having a spiral arch convex shape,

the top ends of each of the first half shell and the second half shell are respectively configured with two top snapping slots arranged parallel to each other,

the side threaded convex body of the second half shell comprises a transverse clamping slot positioned on an edge of the side threaded convex body,

the first half shell and the second half shell are each provided with an internal threaded convex body positioned on an inner wall below the penetrating tube slot,

the first half shell and the second half shell are each provided with a recessed supporting thin slot defined on one of the respective side edges and positioned adjacent to one of the respective clamping slots, the bottom end thereof being further formed as a positioning slot;

wherein:

the first electrode plate has an upright base bar extending up and down, wherein:

a top edge of the upright base bar comprises a first electrode top clamping plate, a second electrode top clamping plate, and an upper conducting point, wherein the first electrode top clamping plate comprises a first upward extending portion, a first inward extending portion, and a second upward extending portion, wherein the second clamping plate comprises a downward extending portion, and wherein the upper conducting point is positioned between the second upward extending portion of the first clamping plate and the downward extending portion of the second clamping plate,

a bottom edge of the upright base bar comprises a snapping plate and a lower conducting point, wherein the snapping plate comprises a downward extending portion and wherein the lower conducting point extends slopingly inward from the snapping plate,

the upper conducting point and the lower conducting point of the first electrode plate are conductive,

when assembled, the first and second top electrode clamping plates are aligned to each of the top snapping slots of the second half shell, thereby enabling the upper conducting point to protrude out of the second half shell,

a body of the upright base bar is positioned to rest within a portion of the plurality of clamping slots, and

the lower conducting point is positioned to rest below the penetrating tube slot,

the second electrode plate has an upright base bar extending up and down,

wherein:

a top edge of the upright base bar comprises a snapping plate and a clamping hook, wherein an outer wall of the clamping hook is provided with an upper conducting point,

a bottom edge of the upright base bar comprises a snapping plate and an inserting connection plate, wherein the snapping plate is configured with a lower conducting point,

the upper conducting point and the lower conducting point of the second electrode plate are conductive,

when assembled, the clamping hook of the second electrode plate clamps the clamping slot positioned on the interior of the second half shell, thereby enabling the upper conducting point on the clamping hook to be positioned external to the second half shell,

a body of the upright base bar of the second electrode plate is positioned to rest within a portion of the plurality of clamping slots, and

the lower conducting point is positioned to rest below the penetrating tube slot in the bottom section of the second half shell in a positioning slot,

the first half shell faces toward the second half shell to achieve the snapping and jointing function via the two side edges of the first half shell and the second half shell,

upon snapping and jointing the first half shell and the second half shell, the top clamping plate of the first electrode plate is correspondingly inserted into each of the top snapping slots of the first half shell, the bar body extending from the upright base bar of the first electrode plate and the snapping plate enter into the clamping slot corresponding to the first half shell to rest, and the upper conducting point of the first electrode plate jointly protrude out of the first half shell and the second half shell, and a first jointing component is used to go through the penetrating tube slots of the first half shell and the second half shell to further secure the first half shell to the second half shell; and

the electrode holding ring is conductive and an exterior surface thereof is configured with a side threaded convex hollow body having a convex continuous spiral arch, and, upon assembly, the electrode holding ring is screwed to the side threaded convex hollow body after the first half shell and the second half shell are combined, thereby enabling the electrode holding ring to be completely and tightly jointed with the side threaded convex hollow body.

2 . The extension lamp socket of claim 1 , wherein the first half shell and the second half shell extend longitudinally and comprise a narrowing taper at the respective top ends and a widening taper at the respective bottom ends.

3 . The extension lamp socket of claim 1 , wherein the structure capable of snapping and jointing the first half shell and the second half shell comprises a snapping slot and a tenon.

4 . The extension lamp socket of claim 1 , wherein a through hole is respectively formed on the two side edges adjacent to the bottom end of the first half shell and the second half shell, and wherein upon the first half shell and the second half shell being snapped and jointed, a second joint component is passed through the through hole of the first half shell and the second half shell.

5 . The extension lamp socket of claim 4 , wherein a micro positioning convex column is additionally configured adjacent to each of the through holes on the two side edges adjacent to the bottom edge of the first half shell and the second half shell, a space on an adjacent edge of the through hole on an opposite side edge is correspondingly expanded, and wherein upon the first half shell and the second half being snapped and jointed, the positioning convex column is inserted into the corresponding expanded space of the through hole on the opposite side edge.

6 . The extension lamp socket of claim 1 , wherein a first and second structure capable of correspondingly inserting and connecting to each other are disposed the middle of the top section of the first half shell and the second half shell, and when the first half shell and the second half shell are correspondingly snapped and jointed with each other, the first and second structure capable of correspondingly inserting and connecting to each other are connected.

7 . The extension lamp socket of claim 6 , wherein the first and second structure capable of correspondingly inserting and connecting to each other are an inserting shaft and an inserting slot, respectively.

8 . The extension lamp socket of claim 1 , wherein upon combining the electrode holding ring with the first half shell and the second half shell, the electrode holding ring is screwed on to the side threaded convex body and the electrode holding ring is deformed, thereby further securing the electrode holding ring to the side threaded convex body.

9 . The extension lamp socket of claim 8 , wherein after the electrode holding ring is screwed on to the side threaded convex body, a periphery of the bottom end of the electrode holding ring is and deformed, thereby securing the electrode holding ring to the side threaded convex body.