Boxing speedball

Abstract

A boxing speedball includes a fixed base detachably connected to a solid object, a ball body, a rebound device arranged at the upper part of the ball body, and a connector configured to connect the rebound device to the fixed base. The fixed base and the connector are adjustable and fastened through a fastener. A frictional resistance device is further provided between the fixed base and the connector, and is configured to increase the frictional force area between the fixed base and the connector. The boxing speedball increases the frictional force area at the connection, increases the friction force itself, improves the security of the connection, and is less likely to be twisted and damaged.

What is claimed is: 
     
         1 . A boxing speedball, comprising
 a fixed base, a ball body, a rebound device, and a connector;   wherein   the fixed base is detachably connected to a solid object;   the rebound device is arranged at an upper part of the ball body;   the connector is configured to connect the rebound device to the fixed base;   the fixed base and the connector are adjustable and fastened through a fastener;   a frictional resistance device is provided between the fixed base and the connector, and   the frictional resistance device is configured to increase a frictional force area between the fixed base and the connector.   
     
     
         2 . The boxing speedball according to  claim 1 , wherein
 the frictional resistance device is first engaging teeth and second engaging teeth;   the first engaging teeth are provided at one end of the fixed base; and   the second engaging teeth are engaged with the first engaging teeth and the second engaging teeth are provided on an end surface of the connector, wherein the end surface of the connector is connected to the fixed base.   
     
     
         3 . The boxing speedball according to  claim 1 , wherein
 a spring is provided between the first engaging teeth and the second engaging teeth.   
     
     
         4 . The boxing speedball according to  claim 1 , wherein
 the rebound device comprises a cylindrical spring, a first threaded fastener and a second threaded fastener, wherein the first threaded fastener and the second threaded fastener are arranged at a first end and a second end of the cylindrical spring, respectively; and   the cylindrical spring is threadedly connected to the ball body and the connector through the first threaded fastener and the second threaded fastener, respectively.   
     
     
         5 . The boxing speedball according to  claim 4 , wherein
 a lower end of the ball body is provided with an inflation-deflation port, an upper end of the ball body is provided with an external threaded rod, and the external threaded rod is threadedly connected to the first threaded fastener at the first end of the cylindrical spring.   
     
     
         6 . The boxing speedball according to  claim 5 , wherein
 the ball body is a solid ball made of a soft material.   
     
     
         7 . The boxing speedball according to  claim 4 , wherein
 an end of the connector is provided with a fastening bolt, wherein the end of the connector is connected to the cylindrical spring, the fastening bolt is screwed to the connector, and   an end of the fastening bolt protrudes from the connector and then the end of the fastening bolt is threadedly connected to the second threaded fastener at the second end of the cylindrical spring.   
     
     
         8 . The boxing speedball according to  claim 1 , wherein
 each of two symmetric sides of the connector is provided with a receiving slot.   
     
     
         9 . The boxing speedball according to  claim 1 , wherein
 the fixed base is provided with a hook slot, and a belt component passes through the hook slot for training.   
     
     
         10 . A boxing speedball, comprising
 a fixed base, a height angle connector, a connector, a ball body, and a rebound device;   wherein   the rebound device is arranged at an upper part of the ball body;   one end of the height angle connector is connected to the fixed base;   a first end of the connector is connected to the height angle connector, and a second end of the connector is connected to the rebound device;   the fixed base and the height angle connector are adjustable and fastened through a first fastener;   the height angle connector and the connector are adjustable and fastened through a second fastener;   a first frictional resistance device is provided between the fixed base and the height angle connector, and the first frictional resistance device is configured to increase a frictional force area between the fixed base and the height angle connector; and   a second frictional resistance device is provided between the height angle connector and the connector, and the second frictional resistance device is configured to increase a frictional force area between the height angle connector and the connector.   
     
     
         11 . The boxing speedball according to  claim 10 , wherein
 the first frictional resistance device is first engaging teeth and second engaging teeth, and the second frictional resistance device is third engaging teeth and fourth engaging teeth;   wherein   the first engaging teeth are provided at one end of the fixed base;   the second engaging teeth and the third engaging teeth are provided at two ends of the height angle connector, respectively;   the second engaging teeth are engaged with the first engaging teeth; and   the fourth engaging teeth are engaged with the third engaging teeth and the fourth engaging teeth are provided at the first end of the connector connected to the hei g ht angle connector.   
     
     
         12 . The boxing speedball according to  claim 11 , wherein
 the height angle connector is provided with a connector slot configured to receive the connector, and   each of two symmetric sides of the connector is provided with a receiving slot.   
     
     
         13 . The boxing speedball according to  claim 11 , wherein
 a first spring is provided between the first engaging teeth and the second engaging teeth, and a second spring is provided between the third engaging teeth and the fourth engaging teeth.   
     
     
         14 . The boxing speedball according to  claim 10 , wherein
 the rebound device comprises a cylindrical spring, a first threaded fastener and a second threaded fastener, wherein the first threaded fastener and the second threaded fastener are arranged at a first end and a second end of the cylindrical spring, respectively; and   the cylindrical spring is threadedly connected to the ball body and the connector through the first threaded fastener and the second threaded fastener, respectively.   
     
     
         15 . The boxing speedball according to  claim 14 , wherein
 a lower end of the ball body is provided with an inflation-deflation port, an upper end of the ball body is provided with an external threaded rod, and the external threaded rod is threadedly connected to the first threaded fastener at the first end of the cylindrical spring.   
     
     
         16 . The boxing speedball according to  claim 14 , wherein
 an end of the connector is provided with a fastening bolt, wherein the end of the connector is connected to the cylindrical spring, the fastening bolt is screwed to the connector, and   an end of the fastening bolt protrudes from the connector and then the end of the fastening bolt is threadedly connected to the second threaded fastener at the second end of the cylindrical spring.   
     
     
         17 . The boxing speedball according to  claim 10 , wherein
 the fixed base is provided with a hook slot, and a belt component passes through the hook slot for training.   
     
     
         18 . The boxing speedball according to  claim 10 , further comprising
 a floor base; wherein   the floor base is detachably fastened to the fixed base, and the fixed base is detachably fastened to the height angle connector.   
     
     
         19 . The boxing speedball according to  claim 18 , wherein
 the floor base is threadedly connected to the fixed base or the floor base is fastened to the fixed base in a snap-fit manner, and   the fixed base is threadedly connected to the height angle connector or the floor base is fastened to the height angle connector in the snap-fit manner.   
     
     
         20 . The boxing speedball according to  claim 19 , wherein
 a bottom surface of the floor base is provided with an adhesion device configured to strengthen adhesion between the bottom surface of the floor base and a floor.