Portable ball practice rack

Abstract

A portable ball practice rack that comprises an inflatable ring, an outer wall of it is arranged with an inflatable and exhaust gas-proof interface; a protective bag has the same structure as the inflatable ring, and is sleeved on an outer side of the inflatable ring; and an elastic cover arranged on an inner side of an opening of the protective bag, and fixed to the protective bag by a connecting piece. The disclosure adopts the principle of inflating the inflatable ring to increase the size, after the inflatable ring is full of air, tighten the elastic cover. When storing, just discharge the air of the inflatable ring, the extremely small volume is convenient for transportation and storage. At the same time, the matching protective bag can effectively protect the inflatable ring from friction with the ground, which enhances the explosion-proof and protective performance of the inflatable ring.

What is claimed is: 
     
         1 . A portable ball practice rack, comprising:
 an inflatable ring, an outer wall of the inflatable ring is arranged with an inflatable and exhaust gas-proof interface;   a protective bag, the protective bag has the same structure as the inflatable ring, and is sleeved on an outer side of the inflatable ring, and an outer side of the protective bag is arranged with an avoidance hole for accommodating the inflatable and exhaust gas-proof interface;   an elastic cover, the elastic cover is arranged on an inner side of an opening of the protective bag, and the elastic cover is fixed to the protective bag by a connecting piece.   
     
     
         2 . The portable ball practice rack according to  claim 1 , wherein the connecting piece is a sewing thread, and a side of the elastic cover is sewed and fixed to the protective bag by the sewing thread. 
     
     
         3 . The portable ball practice rack according to  claim 1 , wherein the connecting piece comprises multiple groups of Velcro, the multiple groups of Velcro are circumferentially distributed on a ring side of the elastic cover or a ring side of the protective bag, the elastic cover is fixed with the protective bag by the Velcro. 
     
     
         4 . The portable ball practice rack according to  claim 3 , wherein the Velcro comprises a tape installed on the ring side of the elastic cover, an end face of the tape is arranged with a hook face and a rough face at intervals, and connecting tapes are distributed on the circumference of the ring side of the protective bag, and on end of the connecting tape which is far away from the protective bag is fixedly installed with a loop, and the tape can pass through the loop to make the hook surface and the rough surface glued and fixed. 
     
     
         5 . The portable ball practice rack according to  claim 4 , wherein the hook surface is arranged at the end of the tape away from the elastic cover, and the length of the rough surface is two to four times the length of the hook face. 
     
     
         6 . The portable ball practice rack according to  claim 1 , wherein the connecting piece is an elastic case, and the elastic case is connected with the elastic cover, and form an accommodating cavity, and the protective bag is placed inside the accommodating cavity. 
     
     
         7 . The portable ball practice rack according to  claim 6 , wherein the elastic case and the elastic cover are of the same material, and the elastic case and the elastic cover are integrally formed. 
     
     
         8 . The portable ball practice rack according to  claim 1 , wherein a bottom of the protective bag is regularly arranged with a plurality of groups of anti-skid protrusion particles. 
     
     
         9 . The portable ball practice rack according to  claim 1 , wherein the protective bag is one of cloth bag, leather bag, paper bag, fiber bag, and non-woven bag, and the elastic cover is one of mesh cloth, leather cloth and woven cloth. 
     
     
         10 . The portable ball practice rack according to  claim 1 , wherein the inflatable ring is made of high elastic material.