Volleyball passing training device

Abstract

The present disclosure discloses a volleyball passing training device, which includes an angle adjustment mechanism and a ball hoop arranged on the angle adjustment mechanism. The angle adjustment mechanism includes a connecting piece connected to the ball hoop, and a first connecting rod and a second connecting rod respectively hinged to the connecting piece. A sliding device which can slide or fix on the second connecting rod is arranged on the second connecting rod. The first connecting rod is hinged to the sliding device. Connecting lines of the hinge points between the first connecting rod and the connecting piece and between the second connecting rod and the connecting piece and the hinge point between the first connecting rod and the sliding device form a triangle.

What is claimed is: 
     
         1 . A volleyball passing training device, comprising an angle adjustment mechanism and a ball hoop arranged on the angle adjustment mechanism, wherein the angle adjustment mechanism comprises a connecting piece connected to the ball hoop, and a first connecting rod and a second connecting rod respectively hinged to the connecting piece; a sliding device which can slide or fix on the second connecting rod is arranged on the second connecting rod; the first connecting rod is hinged to the sliding device; and connecting lines of the hinge points between the first connecting rod and the connecting piece and between the second connecting rod and the connecting piece and the hinge point between the first connecting rod and the sliding device form a triangle. 
     
     
         2 . The volleyball passing training device according to  claim 1 , wherein the sliding device comprises a first sliding block and a positioning pin which are arranged on the second connecting rod in a sleeving manner and can slide; a first through hole is formed in the first sliding block; and the positioning pin is inserted into the first through hole for fixing the first sliding block. 
     
     
         3 . The volleyball passing training device according to  claim 2 , wherein the connecting piece is an L-shaped rod with an included angle being an acute angle; one side is connected to the ball hoop; and the other side is hinged to each of the first connecting rod and the second connecting rod through hinges. 
     
     
         4 . The volleyball passing training device according to  claim 1 , further comprising a lifting mechanism, wherein the lifting mechanism comprises a base and a telescopic rod arranged on the base; the telescopic rod comprises a fixing sleeve and a lifting rod arranged in the fixing sleeve; a second through hole is formed in the fixing sleeve; a knob is screwed into the second through hole and is pressed against the lifting rod to fix the lifting rod; and the top end of the lifting end is connected to the second connecting rod. 
     
     
         5 . The volleyball passing training device according to  claim 4 , further comprising a spring arranged in the fixing spring, wherein one end of the spring is connected to the base; and the other end is arranged inside the lifting rod and is pressed against the interior of the lifting rod. 
     
     
         6 . The volleyball passing training device according to  claim 4 , further comprising a collection mechanism, wherein the collection mechanism comprises a collection net and a collection box; the collection net is a cylindrical soft net; one end of the collection net is communicated with the ball hoop; and the other end is arranged above an opening end of the collection box and is close to the opening end. 
     
     
         7 . The volleyball passing training device according to  claim 6 , further comprising an expanded end, that is, a horn-shaped cover body, wherein a reduced end of the cover body is communicated with one end, close to the opening end, of the collection net; and the expanded end of the cover body is connected to an inner wall of the collection box and covers the opening end. 
     
     
         8 . The volleyball passing training device according to  claim 6 , wherein the collection box comprises a bottom plate and a plurality of removable coamings arranged on the upper surface of the bottom plate. 
     
     
         9 . The volleyball passing training device according to  claim 8 , wherein a plurality of universal wheels are arranged on the lower surface of the bottom plate. 
     
     
         10 . The volleyball passing training device according to  claim 8 , wherein a sliding rail is arranged on the coaming; a second sliding block is arranged on the sliding rail; a pair of clamping plates with the same spacing as the outside diameter of the fixing sleeve are arranged on the second sliding block; third through holes are formed in the second sliding block located on the outer side of the adjacent clamping plate; a plurality of fourth through holes are formed in the sliding rails; the spacing between adjacent third through holes is the same as that between adjacent fourth through holes; bolts penetrate through the third through holes and the fourth through holes to fix the sliding blocks; and the fixing sleeve is clamped between the adjacent clamping plates.