Connecting piece for toy track and toy track

Abstract

The present invention pertains to a connecting piece for toy track and a toy track. The toy track includes a supporting piece and the connecting piece for toy track. The connecting piece for toy track includes a flexible tube, a first connector, and a second connector. The first connector and the second connector are respectively connected to two ends of the flexible tube and coaxially arranged with respect to the flexible tube. The first connector is provided with a plug-in groove, and the second connector is provided with a plug-in convex part matched with the plug-in groove. The flexible tube has a first annular outer diameter, the first connector has a second annular outer diameter, and the second connector has a third annular outer diameter. The first annular outer diameter, the second annular outer diameter, and the third annular outer diameter are equal to each other.

What is claimed is: 
     
         1 . A connecting piece for toy track, comprising: a flexible tube, a first connector, and a second connector, wherein the first connector and the second connector are respectively connected to two ends of the flexible tube and coaxially arranged with respect to the flexible tube, the first connector is provided with a plug-in groove, the second connector is provided with a plug-in convex part matched with the plug-in groove, the flexible tube has a first annular outer diameter, the first connector has a second annular outer diameter, the second connector has a third annular outer diameter, the first annular outer diameter, the second annular outer diameter, and the third annular outer diameter are equal to each other, so that a surface of the flexible tube, a surface of the first connector, and a surface of the second connector are on a same annular surface after the plug-in convex part is plugged into the plug-in groove. 
     
     
         2 . The connecting piece for toy track according to  claim 1 , wherein a cross section of the plug-in convex part is circular or polygonal, a cross section of the first connector is annular, and an inner wall of the first connector protrudes inward to form a convex rib to fasten the plug-in convex part. 
     
     
         3 . The connecting piece for toy track according to  claim 1 , wherein the flexible tube is a hollow flexible tube, the first connector is connected to the hollow flexible tube through a first convex column, and the second connector is connected to the hollow flexible tube through a second convex column. 
     
     
         4 . The connecting piece for toy track according to  claim 3 , wherein a bendable metal wire is arranged inside the flexible tube, a first end of the bendable metal wire is connected to the first convex column and a second end of the bendable metal wire is connected to the second convex column. 
     
     
         5 . A toy track, comprising a supporting piece and the connecting piece for toy track according to  claim 1 , wherein a plurality of clamping grooves with intervals are arranged on the supporting piece, and a size of each of the clamping grooves is matched with the first annular outer diameter. 
     
     
         6 . The toy track according to  claim 5 , wherein the supporting piece comprises a circular body/elliptical body, and the clamping grooves are arranged on an inner wall of the circular body/elliptical body. 
     
     
         7 . The toy track according to  claim 6 , wherein the plurality of the clamping grooves are uniformly distributed on the inner wall of the circular body/elliptical body. 
     
     
         8 . The toy track according to  claim 5 , wherein the supporting piece comprises an arc-shaped body with an opening, the arc-shaped body is an elastomer, so the arc-shaped body is opened or closed relative to the opening, and the clamping grooves are arranged on an inner wall of the arc-shaped body. 
     
     
         9 . The toy track according to  claim 8 , wherein the plurality of the clamping grooves are uniformly distributed from a first end of the arc-shaped body to a second end of the arc-shaped body along the arc-shaped body on the inner wall of the arc-shaped body. 
     
     
         10 . The toy track according to  claim 6 , an outer wall of an arc-shaped body is provided with a plug-in ridge to be connected to building blocks in a plug-in type manner. 
     
     
         11 . The toy track according to  claim 5 , wherein a cross section of the plug-in convex part is circular or polygonal, a cross section of the first connector is annular, and an inner wall of the first connector protrudes inward to form a convex rib to fasten the plug-in convex part. 
     
     
         12 . The toy track according to  claim 5 , wherein the flexible tube is a hollow flexible tube, the first connector is connected to the hollow flexible tube through a first convex column, and the second connector is connected to the hollow flexible tube through a second convex column. 
     
     
         13 . The toy track according to  claim 12 , wherein a bendable metal wire is arranged inside the flexible tube, a first end of the bendable metal wire is connected to the first convex column and a second end of the metal wire is connected to the second convex column. 
     
     
         14 . The toy track according to  claim 8 , an outer wall of the arc-shaped body is provided with a plug-in ridge to be connected to building blocks in a plug-in type manner.