Fast-load weight plate system

Abstract

The present invention relates to a fast-load weight plate system, wherein a weight plate, a linkage assembly and a stop block are provided. The weight plate is provided with a radially arranged straight slot that runs from the middle of the weight plate to its outer edge, The stop block is attached to the weight plate and blocks the straight slot; one end of the linkage assembly is movably connected to the handle of the weight plate and the other end is rotatably connected to the stop block. The linkage assembly is used to rotate the stop block to unblock the straight slot; such arrangement promises an easy loading and unloading process that takes up less space.

What is claimed is: 
     
         1 . A fast-load weight plate system, comprising a weight plate ( 1 ), wherein a linkage assembly and a stop block ( 3 ) are provided, the weight plate ( 1 ) is provided with a straight slot ( 2 ) arranged in a radial direction, the straight slot ( 2 ) is provided with a limit end ( 2 . 1 ) located in the middle of the weight plate ( 1 ) and a slot opening ( 2 . 2 ) all the way to the outer edge of the weight plate ( 1 ), the stop block ( 3 ) is rotatably connected to the weight plate ( 1 ) and located outside the straight slot ( 2 ), one end of the linkage assembly is movably attached to the weight plate ( 1 ) and the other end is rotatably attached to the stop block ( 3 ), and the linkage assembly rotates the limit block ( 3 ) into the straight slot ( 2 ) to secure the barbell positioned in the limit end ( 2 . 1 ). 
     
     
         2 . A fast-load weight plate system according to  claim 1 , wherein the weight plate ( 1 ) is provided with an internal holding cavity ( 1 . 1 ), the stop block ( 3 ) and linkage assembly are all located inside the holding cavity ( 1 . 1 ). 
     
     
         3 . A fast-load weight plate system according to  claim 2 , wherein a straight slot ( 2 ) is located in the lower part of the weight plate ( 1 ), the larger part of the holding cavity ( 1 . 1 ) is in the upper part of the weight plate ( 1 ), which pushes the center of gravity of the weight plate ( 1 ) down to its lower part. 
     
     
         4 . A fast-load weight plate system according to  claim 3 , wherein the holding cavity ( 1 . 1 ) is provided with a curved weight-bearing bump ( 1 . 4 ) on the upper sidewall of the limit end ( 2 . 1 ) of the straight slot ( 2 ). 
     
     
         5 . A fast-load weight plate system according to  claim 4 , wherein the linkage assembly comprises a drive rod ( 5 ) and a limit rod ( 4 ), the limit rod ( 4 ) is rotatably connected to the weight plate ( 1 ), one end of the limit rod ( 4 ) is movably connected to the stop block ( 3 ), a socket ( 1 . 2 ) all the way to the holding cavity ( 1 . 1 ) is arranged on the side of the weight plate ( 1 . 2 ), the driving rod ( 5 ) is slidably inserted in the socket ( 1 . 2 ), the driving rod ( 5 ) comprises a first end located outside the weight plate ( 1 ) and a second end located inside the holding cavity ( 1 . 1 ), the second end of the driving rod ( 5 ) is used to rotate the limit rod ( 4 ). 
     
     
         6 . A fast-load weight plate system according to  claim 5 , wherein the limit rod ( 4 ) is provided with a waist-shaped hole ( 4 . 1 ) at the end, the stop block ( 3 ) is provided with a pin snap-fitted inside the waist-shaped hole ( 4 . 1 ) to moveably connect the limit rod ( 4 ) and the stop block ( 3 ). 
     
     
         7 . A fast-load weight plate system according to  claim 5 , wherein two pieces of connecting rod ( 6 ) are provided, there are two pairs of the stop block ( 3 ) and the limit rod ( 4 ) both symmetrically arranged on the left and right sides of the straight slot ( 2 ), with one end of each connecting rod ( 6 ) hinged to the other end of each limit rod ( 4 ) and the other end of each connecting rod ( 6 ) hinged to the second end of the drive rod ( 5 ). 
     
     
         8 . A fast-load weight plate system according to  claim 7 , wherein a spring ( 7 ) is provided between the first end of the drive rod ( 5 ) and the inner side wall of the holding cavity ( 1 . 1 ), the spring ( 7 ) pushes the drive rod ( 5 ) to slide toward the holding cavity ( 1 . 1 ), which then rotates the stop block ( 3 ) into the straight slot ( 2 ). 
     
     
         9 . A fast-load weight plate system according to  claim 8 , wherein an arc-shaped catching part ( 3 . 1 ) is provided on one side of stop block ( 3 ) toward the limit end ( 2 . 1 ) of the straight slot ( 2 ), and the distance between the two pieces of stop block ( 3 ) on the side near the slot opening ( 2 . 2 ) of the straight slot ( 2 ) gradually decreases in the direction toward the limit end ( 2 . 1 ). 
     
     
         10 . A fast-load weight plate system according to  claim 7 , wherein the drive rod ( 5 ) is provided with a rotatable handle ( 5 . 1 ) at a first end, the weight plate ( 1 ) is provided with a recess ( 1 . 3 ) on its outer side to house the handle ( 5 . 1 ), and the stop block ( 3 ) blocks the slot opening ( 2 . 2 ) of the straight slot ( 2 ) when the handle ( 5 . 1 ) is in contact with the bottom of the recess ( 1 . 3 ), and the stop block ( 3 ) unblocks the slot opening ( 2 . 2 ) of the straight slot ( 2 ) when the handle ( 5 . 1 ) is in contact with the outer side of the weight plate ( 1 ).