Trolley baseplate and trolley using the same

Abstract

Disclosed is a trolley baseplate including a plate body having a head end and a tail end, a first locking mechanism on the plate body adjacent to the head end and a second locking mechanism on the plate body adjacent to the tail end. The second locking mechanism is placed corresponding to the first locking mechanism and the structures of the two locking mechanism are fitting. When front and back trolleys are concatenated, the tail end of the front trolley and the head end of the back trolley can be locked to each other by means of the first locking mechanism and the second locking mechanism. The trolleys with the above structures can be concatenated more conveniently, and are not liable to overturn upon sudden braking or turning, which can effectively shorten the time for the staff to fasten two trolleys together.

1 . A multimedia trolley with a limiting device comprising: a frame body, a player support, a baseplate and a charging connector, one end of the frame body being connected to the player support, the other end of the frame body being connected to the baseplate, the charging connector being provided at the bottom of the baseplate, the baseplate being provided with an arc latch and a slope piece, and each of the arc latch and the slope piece having a structure adaptive to each other. 
     
     
         2 . The multimedia trolley with a limiting device according to  claim 1 , wherein the arc latch is provided at the head end of the baseplate and the slope piece is provided at the tail end of the baseplate; and
 the arc latch is a protrusion formed toward the bottom of the baseplate; and the cross section of the slope piece is a trapezoid with a narrow upper portion and a wide lower portion, the upper surface of the slope piece being forming a projection, and the whole remaining surface of the slope piece being flat.   
     
     
         3 . (canceled) 
     
     
         4 . The multimedia trolley with a limiting device according to  claim 2 , wherein the upper surface of the slope piece comprises an ascending slope, a middle portion and a descending slope, the ascending slope and the descending slope of the slope piece both having an inclination angle, the inclination angle of the ascending slope being greater than that of the descending slope, and the middle portion being a platform. 
     
     
         5 . The multimedia trolley with a limiting device according to  claim 1 , wherein the baseplate is further provided with a limiting groove and a limiting piece, the structures of the limiting groove and the limiting piece being fitted to each other, the limiting piece being arranged at the head end of the baseplate and the limiting groove being arranged at the tail end of the baseplate. 
     
     
         6 . The multimedia trolley with a limiting device according to  claim 5 , wherein the limiting piece is provided above the arc latch and includes a projection extending toward the outside of the baseplate, and the limiting groove locates above the slope piece. 
     
     
         7 . (canceled) 
     
     
         8 . The multimedia trolley with a limiting device according to  claim 6 , wherein the charging connector has a front end and a rear end, both of the front and rear ends of the charging connector being provided with a conductive member; and
 two or more of the multimedia trolleys with a limiting device are concatenated front and back,   when the arc latch of a front trolley slides on the ascending slope of the slope piece of a back trolley, the conductive member on the rear end of the charging connector of the front trolley and the conductive member on the front end of the charging connector of the back trolley are not in contact;   when the arc latch of a front trolley slides on the middle portion of the slop piece of a back trolley, the conductive member on the rear end of the charging connector of the front trolley and the conductive member on the front end of the charging connector of the back trolley are not in contact; and   when the arc latch of a front trolley slides on the descending slope of the slope piece of a back trolley, the conductive member on the rear end of the charging connector of the front trolley and the conductive member on the front end of the charging connector of the back trolley are in close contact.   
     
     
         9 .- 24 . (canceled)