Tennis Ball Pickup Device

Abstract

A tennis ball pickup device, including a first barrel in form of a hollow cylinder; a second barrel in form of a hollow cylinder arranged in the first barrel, and capable of moving telescopically up and down and/or moving rotatably therein; a first barrel cover arranged outside the first barrel; a second barrel cover, in which a resilient stopper is arranged, being replaceably hooded on the second barrel; and further including a solar battery being chargeable by sunlight and adapted for provision of electrical energy; a LED display arranged longitudinally on and along the first barrel for connecting with the solar battery and for displaying current time and score; and a speaker arranged on the first barrel for connecting with the solar battery and for playing sound. The barrel cover could be replaceably hooded on the barrel, whereby extending the lifespan thereof.

1 . A tennis ball pickup device in form of a column, comprising:
 a first barrel in form of a hollow cylinder;   a second barrel in form of a hollow cylinder arranged in the first barrel, and capable of telescopically and/or rotatably moving up and down in the first barrel;   a first barrel cover arranged outside the first barrel;   a second barrel cover in which a resilient stopper is arranged, and the second barrel cover is replaceably hooded on the second barrel;   wherein the tennis ball pickup device further comprises:   a solar battery being chargeable by sunlight and adapted for provision of electrical energy;   a LED display arranged longitudinally on and along the first barrel for connecting with the solar battery and for displaying current time and score; and   a speaker arranged on the first barrel for connecting with the solar battery and for playing sound.   
     
     
         2 . A tennis ball pickup device of  claim 1 , wherein the first barrel comprises a plurality of fastening positions arranged thereon; and the second barrel comprises a plurality of fastening pieces arranged thereon. 
     
     
         3 . A tennis ball pickup device of  claim 2 , wherein the fastening positions are engaging positions. 
     
     
         4 . A tennis ball pickup device of  claim 2 , wherein the fastening pieces are engaging pins. 
     
     
         5 . A tennis ball pickup device of  claim 1 , further comprising a solar charger arranged on the second barrel and connected with the solar battery. 
     
     
         6 . A tennis ball pickup device of  claim 5 , wherein the solar charger comprises a plurality of flexible solar panels. 
     
     
         7 . A tennis ball pickup device of  claim 1 , wherein the first barrel cover comprises one or more USB interface ports arranged thereon and connected with the solar battery. 
     
     
         8 . A tennis ball pickup device of  claim 1 , further comprising a suction cup detachably arranged on the second barrel cover to enable the tennis ball pickup device to be integrally stably sucked on ground. 
     
     
         9 . A tennis ball pickup device of  claim 8 , wherein the suction cup is in form of a cup having a larger end and a smaller end, and one end of which is provided with a space for air compression and a passage for air flow.