The present invention relates to a lamp replacement mechanism box having a fastener used to easily replace a lamp by inserting a lamp by using a lamp as an auxiliary device when replacing a lamp located on a high ceiling of a building such as a school, a hospital, or a government office.;The present invention is coupled to the upper side and the lower side of the c-shaped fastening portion 61, the coupling body (61) integrally coupled to the upper and lower sides, one side makes the longitudinal operation hole (11), through the upper Make a ball 12 and a bottom through hole 14, and make the middle a through hole 13 communicate with the longitudinal operator 11 between the top through hole 12 and the bottom through hole 14 distance. And an outer body 10 having a projection jaw 15 integrally formed on the inner side of the other side of the longitudinal operating hole 11,;The lower part is a cylindrical shape through which the fixing projection 21 protrudes at the lower end of the outer circumference, and the upper cross-shaped insertion hole in the inner body 20 at the same position as the position of the longitudinal operation hole 11 of the outer body 10. Body portion formed by inserting the inner body 20 and the outer body 10 and the inner body 20 to extend the height by forming a middle cross-shaped insertion hole 23, the lower cross-shaped insertion hole 24, 22 30,;Lamp height adjustment pin 70 is inserted into any one of the cross-shaped insertion hole used to adjust the height of the lamp, the lid 40 for the replacement bulb or fluorescent lamp, and the lid cover 50 used for storage It is composed.;Outer Body, Inner Body, Body, Grill Holder, Lid, Lid Cover, Lamp Height Adjustment Pin
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