Trampoline Frame Connecting Structure, Trampoline Frame and Trampoline

Abstract

A trampoline frame connecting structure, a trampoline frame and a trampoline are provided. The trampoline frame connecting structure includes left and right frame traverse pipes, a mesh guard pipe, trampoline leg pipes and a connecting joint, wherein the connecting joint is a square pipe, positioning bulges are formed on left and right inner walls of the connecting joint, square nozzles are formed at ends of the left and right frame traverse pipes, an elongated positioning groove is formed on the left and right frame traverse pipes, and an interference fit is formed between the elongated positioning groove and the positioning bulges for a secondary positioning between the left and right frame traverse pipes and the connecting joint. A connection between the left and right frame traverse pipes and the connecting joint is stable and improves a positioning accuracy of a installed trampoline.

1 . A trampoline frame connecting structure, comprising left and right frame traverse pipes, a mesh guard pipe, trampoline leg pipes and a connecting joint, wherein
 the connecting joint is a square pipe,   positioning bulges are formed on left and right inner walls of the connecting joint,   square nozzles matched with inner holes of the connecting joint are formed at ends of the left and right frame traverse pipes,   an elongated positioning groove is formed on outer walls of surfaces of the left and right frame traverse pipes corresponding to the positioning bulges,   the positioning bulges slide along the elongated positioning groove when the left and right frame traverse pipes are matched and inserted with the connecting joint, wherein an interference fit is formed between the elongated positioning groove and the positioning bulges for a secondary positioning between the left and right frame traverse pipes and the connecting joint;   the connecting joint is also disposed with an installation structure for connecting a trampoline leg pipe and the mesh guard pipe.   
     
     
         2 . The trampoline frame connecting structure according to  claim 1 , wherein
 the installation structure on the connecting joint for connecting the trampoline leg pipe and the mesh guard pipe is a through hole penetrating from up and down and provided on the connecting joint,   the trampoline leg pipe is inserted into the through hole from below the connecting joint,   the mesh guard pipe is inserted into the through hole from above the connecting joint,   nozzles of the mesh guard pipe and the trampoline leg pipe are sleeved inside and outside, and   fastener installation holes penetrating from front to back are respectively provided at corresponding positions of the connecting joint, the trampoline leg pipe and the mesh guard pipe to fixedly connect the trampoline leg pipe, the mesh guard pipe and the connecting joint by matching fasteners.   
     
     
         3 . The trampoline frame connecting structure according to  claim 2 , wherein a clamping step for abutting against a bottom of the connecting joint is formed at a lower end of the nozzle of the trampoline leg pipe. 
     
     
         4 . The trampoline frame connecting structure according to  claim 1 , wherein the connecting joint is an integrally formed structure. 
     
     
         5 . The trampoline frame connecting structure according to  claim 2 , wherein a fastening sleeve is embedded between the nozzles of trampoline leg pipes and mesh guard pipe and the through hole of the connecting joint, and the fastening sleeve is configured to fill gaps between the trampoline leg pipes and mesh guard pipe and the through hole, wherein the connecting joint is firmly connected to the trampoline leg pipes and mesh guard pipe, and the fastening sleeve is provided with a fastener avoiding providing at a corresponding position of a fastener installation hole. 
     
     
         6 . The trampoline frame connecting structure according to  claim 2 , wherein the nozzle of the trampoline leg pipe is sleeved outside the nozzle of the mesh guard pipe. 
     
     
         7 . The trampoline frame connecting structure according to  claim 1 , wherein each of the positioning bulges is formed by an inward recessing of a nozzle of the connecting joint, and the each of the positioning bulges is circular in shape. 
     
     
         8 . The trampoline frame connecting structure according to  claim 2 , wherein the through hole penetrating from up and down of the connecting joint is a circular-shaped hole, and the nozzles of the trampoline leg pipe and the mesh guard pipe are formed with circular-shaped nozzles matched with the circular-shaped hole. 
     
     
         9 . A trampoline frame, wherein a plurality of frame traverse pipes, trampoline leg pipes and mesh guard pipes are connected through a plurality of connecting joints to form an annular trampoline frame, and the plurality of frame traverse pipes, trampoline leg pipes, mesh guard pipes and the plurality of connecting joints are connected by the trampoline frame connecting structure according to  claim 1 . 
     
     
         10 . A trampoline comprising the trampoline frame according to  claim 9  and a trampoline cloth, wherein the trampoline cloth is connected to the trampoline frame through a plurality of bed cloth connecting springs disposed at intervals along a periphery of the trampoline cloth. 
     
     
         11 . The trampoline frame connecting structure according to  claim 2 , wherein the connecting joint is an integrally formed structure. 
     
     
         12 . The trampoline frame according to  claim 9 , wherein
 the installation structure on the connecting joint for connecting the trampoline leg pipe and the mesh guard pipe is a through hole penetrating from up and down and provided on the connecting joint,   the trampoline leg pipe is inserted into the through hole from below the connecting joint,   the mesh guard pipe is inserted into the through hole from above the connecting joint,   nozzles of the mesh guard pipe and the trampoline leg pipe are sleeved inside and outside, and   fastener installation holes penetrating from front to back are respectively provided at corresponding positions of the connecting joint, the trampoline leg pipe and the mesh guard pipe to fixedly connect the trampoline leg pipe, the mesh guard pipe and the connecting joint by matching fasteners.   
     
     
         13 . The trampoline frame according to  claim 12 , wherein a clamping step for abutting against a bottom of the connecting joint is formed at a lower end of the nozzle of the trampoline leg pipe. 
     
     
         14 . The trampoline frame according to  claim 9 , wherein the connecting joint is an integrally formed structure. 
     
     
         15 . The trampoline frame according to  claim 12 , wherein a fastening sleeve is embedded between the nozzles of trampoline leg pipes and mesh guard pipe and the through hole of the connecting joint, and the fastening sleeve is configured to fill gaps between the trampoline leg pipes and mesh guard pipe and the through hole, wherein the connecting joint is firmly connected to the trampoline leg pipes and mesh guard pipe, and the fastening sleeve is provided with a fastener avoiding providing at a corresponding position of a fastener installation hole. 
     
     
         16 . The trampoline frame according to  claim 12 , wherein the nozzle of the trampoline leg pipe is sleeved outside the nozzle of the mesh guard pipe. 
     
     
         17 . The trampoline frame according to  claim 9 , wherein each of the positioning bulges is formed by an inward recessing of a nozzle of the connecting joint, and the each of the positioning bulges is circular in shape. 
     
     
         18 . The trampoline frame according to  claim 12 , wherein the through hole penetrating from up and down of the connecting joint is a circular-shaped hole, and the nozzles of the trampoline leg pipe and the mesh guard pipe are formed with circular-shaped nozzles matched with the circular-shaped hole.