Canopy

Abstract

A canopy is provided, including at least three legs, a plurality of outer retractable units, a plurality of inner retractable units, a center lock and at least one reinforcing rod unit. The center lock is configured to lock the canopy in an unfolded state after locking, and allow the canopy to be folded into a folded state after unlocking, an inner end portion of each inner retractable unit is rotatably connected to the center lock. The reinforcing rod unit has an outer end portion and an inner end portion, the outer end portion of the reinforcing rod unit is rotatably connected to one of the plurality of outer retractable units, and the inner end portion of the reinforcing rod unit is rotatably connected to the center lock.

1 - 14 . (canceled) 
     
     
         15 . A canopy, comprising:
 at least three legs;   a plurality of outer retractable units, each outer retractable unit being connected between two adjacent legs of the at least three legs:   a plurality of inner retractable units, each inner retractable unit being connected to one of the at least three legs and having an inner end portion, and the plurality of outer retractable units and the plurality of inner retractable units constituting a top frame of the canopy:   a center lock configured to lock the canopy in an unfolded state after locking, and allow the canopy to be folded into a folded state after unlocking, the inner end portion of each inner retractable unit being rotatably connected to the center lock: and   a plurality of hitch mechanisms, the inner end portion of each inner retractable unit being rotatably connected to the center lock by one of the plurality of hitch mechanisms;   wherein, each hitch mechanism comprises a hitch pin and a connecting piece which are fitted with each other, a hitch pin groove for accommodating the hitch pin is formed in the connecting piece, the hitch pin groove has a notch for the hitch pin to enter, and the notch is configured to allow the hitch pin to enter the hitch pin groove in a direction intersecting with a center line thereof.   
     
     
         16 . The canopy of  claim 15 , wherein the center lock has a plurality of connecting portions arranged at intervals along a perimetric direction of the center lock, opposite surfaces of two adjacent connecting portions of the plurality of connecting portions are provided with hitch pins respectively, the connecting piece is located between the two adjacent connecting portions, and the connecting piece accommodates two hitch pins. 
     
     
         17 . The canopy of  claim 16 , further comprising at least one reinforcing rod unit having an outer end portion and an inner end portion, the outer end portion of the reinforcing rod unit is rotatably connected to one of the plurality of outer retractable units, and the inner end portion of the reinforcing rod unit is rotatably connected to the center lock by one of the plurality of hitch mechanisms. 
     
     
         18 . The canopy of  claim 17 , wherein the connecting piece comprises a plug connected with or integrally formed with the inner end portion of each inner retractable unit or the reinforcing rod unit and a hook portion extending in a bending mode, one end of the hook portion and the plug are fixedly connected or integrally formed, the hitch pin groove is formed between the hook portion and the plug, and the notch is formed between the other end of the hook portion and the plug. 
     
     
         19 . The canopy of  claim 18 , wherein a connecting rib is connected between the other end of the hook portion and the plug, and two notches are provided on two opposite sides of the connecting rib, respectively. 
     
     
         20 . The canopy of  claim 18 , wherein the center lock comprises a top cap and a bottom cap which are locked or unlocked respect to each other, the top cap and the bottom cap are provided with hitch pins, respectively, and the connecting piece comprises an upper connecting piece connected to the hitch pin on the top cap and a lower connecting piece connected to the hitch pin on the bottom cap. 
     
     
         21 . The canopy of  claim 20 , wherein the hook portion of the upper connecting piece has a first inclined inner surface opposite to the plug thereof. 
     
     
         22 . The canopy of  claim 20 , wherein the notch of the hitch pin groove faces upwards, the hook portion of the lower connecting piece has a second inclined inner surface opposite to the plug thereof and a limiting inner surface opposite to the hitch pin located therein, the limiting inner surface is located between the second inclined inner surface and the notch, and an edge of the limiting inner surface close to the notch is lower than an edge of the limiting inner surface close to the second inclined inner surface. 
     
     
         23 . The canopy of  claim 20 , wherein the reinforcing rod unit comprises a first reinforcing rod and a second reinforcing rod which are rotatably connected, an end portion of the first reinforcing rod is provided with the upper connecting piece and rotatably connected to the top cap through the upper connecting piece, and an end portion of the second reinforcing rod is provided with the lower connecting piece and rotatably connected to the bottom cap through the lower connecting piece. 
     
     
         24 . The canopy of  claim 20 , wherein each inner retractable unit comprises a first top rod and a second top rod which are rotatably connected, an end portion of the first top rod is provided with the upper connecting piece and rotatably connected to the top cap through the upper connecting piece, and an end portion of the second top rod is provided with the lower connecting piece and rotatably connected to the bottom cap through the lower connecting piece. 
     
     
         25 . The canopy of  claim 24 , wherein the reinforcing rod unit further comprises a third reinforcing rod having an end portion rotatably connected to the other end portion of the first reinforcing rod, each outer retractable unit comprises at least one connecting rod assembly rotatably connected between the legs, the connecting rod assembly comprises a first connecting rod and a second connecting rod which are capable of being relatively unfolded and closed, middles of the first connecting rod and the second connecting rod are rotatably connected by a pivot, the other end portion of the third reinforcing rod is rotatably connected to a pivot base, and the pivot base is connected to the pivot. 
     
     
         26 . The canopy of  claim 15 , whereinthe canopy further comprises an overhanging rod, the overhanging rod has an unfolded position and a folded position after the canopy is unfolded, and when the overhanging rod is in the unfolded position, an inner end portion of the overhanging rod is connected to one of the legs, and an outer end portion of the overhanging rod is offset from the leg, and when the overhanging rod is in the folded position, the outer end portion of the overhanging rod and the leg are drawn close to each other. 
     
     
         27 . The canopy of  claim 26 , wherein the canopy further comprises a cross rod, the cross rod has a first end portion rotatably connected to the overhanging rod and a second end portion for being detachably connected with one of the outer retractable units, the second end portion of the cross rod is disconnected from the outer retractable unit when the overhanging rod is in the unfolded position, and the second end portion of the cross rod is connected with the outer retractable unit when the overhanging rod is in the folded position; during the canopy being converted from an unfolded state to a folded state, the second end portion of the cross rod is disconnected from the outer retractable unit, and the overhanging rod is converted from the folded position to the unfolded position.