Shopping bags folding holders (9) comprising: --a base (91) with wheels (92) mounted thereon to drag rolling luggage carrier said trolley (9) on the ground; --two standpipes (93) substantially parallel extending upwardly from said base (91), with a handle (5) mounted between the free ends of said tubes (93), and a central support (4) connected between said tubes (93) at a middle position between these, said handgrip (5) first interior space defined therein, said central support (4) a second interior space defined therein; each comprising said tubes (93) a section tubular bottom (1) mounted by its lower end to said base (91), a section central tubular (2) inserted telescopically said lower section (1), and an element tubular upper (3) seintroduce telescopically within said central section (2), mounted said handle (5) at an upper end of said upper section (3) constitutes the end free tube respective and having said upper section (3) upper said lower section (1) with a hole (22) located near the upper end of said lower section hole formed near its lower end is connected said central support (4) an extreme power communicate with the second interior element in that defined central support (4), said central section (4) an upper end and a lower end opposite each end having a bore runs sponde respectively with the holes in these sections superior (3) and lower (1); understanding the middle first release a bar (50) mobile release willing within the first space inside said handgrip which is pushed defined by a first biasing member (52) to make it bump against the bottom of said handgrip, said a fund portion (51) spaced therefrom is movable with respect to such fund for power press said release bar (50) against said first pusher element, said first unlatching means a cap mobile (55) inserted within each said section top with a lower end (550) thereof projects outside the lower end of the upper section and into said central section (2), said cap (55) an upper end (551) opposite attached bliss release bar (50) via a connecting element (53), so when tightening the bar for release (50) stopper (55) moves into the upper section (3), teniendodic ho cap (55) a cavity (56) therein defining an inclined cam surface (561); understanding said first hitch a first cotter pin (541) that is biased by a biasing member (54) disposed within the cavity (56) within said tapón defined (55), extending through the hole ( 30) upper section (3) and through the hole formed in the upper end of the central section (2), to connect and engage boards the top sections (3) and central (2), being relatively widespread, being disposed told cotter pin (541) within the cavity (56) in order to engage the cam surface (561) and withdrawal of holes (30) through which the first cotter pin (541) extends surface cam (561) when the cap (55) is displaced by bliss release bar (50) to disengage the upper section (3) of the central section (2); --a second retaining pin (41) disposed within the second inner space defined within said central support (4) is pushed by a pusher (42) of the second pin (41) which extends through hole lower section (1) and orifice formed in the lower end of the central section (2) so as to engage the central section (2) with the lower section (1) to adopt an extended position; and --a second engagement comprising a portion round head end (550) expanded formed in the lower end of said cap, so that when the upper section (3) released to be put in so telescopico the central section (2) when the release bar (50), the head end (550) round of said cap (55) contact and act on second cotter pin (41), forcing him to retire is pressed into the second interior space, thereby releasing the engagement between the central section (2) and the lower section (1). (Machine-translation by Google Translate, not legally binding)