Hair Clip Structure

Abstract

A hair clip comprises first and second clip pieces, an elastic element, a plurality of first connecting plates pivotably connected to the first and second clip pieces, and a plurality of second connecting plates pivotably connected to the plurality of first connecting plates respectively. The first clip piece includes a first extension positioning groove and a first contraction positioning groove. The second clip piece includes a second extension positioning groove and a second contraction positioning groove. Each of the plurality of second connecting plates includes a third extension positioning groove and a third contraction positioning groove. Each of the plurality of first connecting plates includes a lower positioning member coupled with the first and second extension positioning grooves or the first and second contraction positioning grooves and an upper positioning member coupled with the third extension positioning groove or the third contraction positioning groove.

1 . A hair clip structure comprising:
 a first clip piece and a second clip piece which are substantially symmetric to each other, wherein the first clip piece includes a first clamping portion on a lower end thereof, a first pressing portion on an upper end thereof, and a first pivotal portion, wherein the first clamping portion further includes a first positioning portion at a bottom end thereof, wherein the first positioning portion includes a first extension positioning groove and a first contraction positioning groove, wherein the second clip piece includes a second clamping portion on a lower end thereof, a second pressing portion on an upper end thereof, and a second pivotal portion, wherein the second clamping portion further includes a second positioning portion at a bottom end thereof, and wherein the second positioning portion includes a second extension positioning groove and a second contraction positioning groove;   an elastic element providing a clamping force to the first clip piece and the second clip piece;   a plurality of first connecting plates, wherein each of the plurality of first connecting plates is substantially rectilinear and includes a lower end pivotably connected to one of the first clip piece and the second clip piece, wherein the lower end of each of the plurality of first connecting plates includes a lower positioning member selectively coupled with one of the first extension positioning groove and the first contraction positioning groove of the first positioning portion and selectively coupled with one of the second extension positioning groove and the second contraction positioning groove of the second positioning groove, and wherein each of the plurality of first connecting plates further includes an upper positioning member; and   a plurality of second connecting plates, wherein each of the plurality of second connecting plates is substantially rectilinear and includes an upper end pivotably connected to an associated one of the plurality of first connecting plates, wherein each of the plurality of second connecting plates further includes an upper end having a third positioning portion, wherein each third positioning portion includes a third extension positioning groove and a third contraction positioning groove, wherein the upper positioning member is selectively coupled with one of the third extension positioning groove and the third contraction positioning groove, and wherein a hair amount clamped by the hair clip in a state in which the upper positioning member is coupled with the third extension positioning groove and the lower positioning member is coupled with the first and second extension positioning grooves is greater than a hair amount clamped by the hair clip in another state in which the upper positioning member is coupled with the third contraction groove and the lower positioning member is coupled with the first and second contraction positioning grooves.   
     
     
         2 . The hair clip structure as claimed in  claim 1 , wherein the first clip piece includes two first pivotal pegs respectively on left and right sides of the lower end of the first clip piece and located above the first positioning portion, wherein the second clip piece includes two second pivotal pegs respectively on left and right sides of the lower end of the second clip piece and located above the second positioning position, wherein the plurality of first connecting plates includes four connecting plates each having a first pivotal hole located above an associated lower positioning member, wherein the first pivotal holes of two of the four connecting plates are pivotably coupled with the first pivotal pegs of the first clip piece, wherein the first pivotal holes of another two of the four connecting plates are pivotably coupled with the second pivotal pegs of the second clip piece, wherein each of the four connecting plates further includes an upper end having a third pivotal peg, and wherein the plurality of second connecting plates includes four second connecting plates each having a second pivotal hole pivotably coupled with an associated one of the third pivotal pegs. 
     
     
         3 . The hair clip structure as claimed in  claim 2 , wherein each of the first, second, and third pivotal pegs includes a slit to permit flexible deformation and a top end having a protrusion. 
     
     
         4 . The hair clip structure as claimed in  claim 1 , wherein each of the plurality of first connecting plates includes a first insertion peg on the lower end thereof, wherein each of the plurality of second connecting plates includes a second insertion peg on the lower end thereof, and wherein the first insertion peg and the second insertion peg are configured to be inserted into hair of a user. 
     
     
         5 . The hair clip structure as claimed in  claim 2 , wherein each of the plurality of second connecting plates includes a curved section disposed on the upper end thereof and located above the upper positioning member of an associated one of the plurality of first connecting plates, and wherein the second pivotal hole is formed on the curved section.