Portable badminton net rack

A portable badminton net rack, comprising a box, a first support rod, a second support rod, a net, a battledore and a badminton, wherein the box comprises an upper box and a lower box, the upper box is configured to be hinged to the lower box, an accommodation groove is defined in the lower box, the accommodation groove is configured to accommodate the net, the battledore and the badminton, the first support rod and the second support rod are hinged to two sides of the lower box, respectively, the first support rod and the second support rod are each configured as a telescopic rod, each of two sides of the net is provided with a connecting bush, and when the portable badminton net rack is in a use state, a first connecting bush of the two connecting bushes is sleeved on the first support rod, and a second connecting bush of the two connecting bushes is sleeved on the second support rod,

• wherein lock assemblies are provided between the first support rod and the lower box and between the second support rod and the lower box, each of the lock assemblies comprises an adjustable rotary joint and a buckle, the lower box is configured with an assembly groove, the adjustable rotary joint is rotationally arranged in the assembly groove, a first end of the adjustable rotary joint is configured to be in inserted in a respective one of the first support rod and the second support rod, the buckle is slidably arranged on the adjustable rotary joint, a locking slot is formed in a groove wall of the assembly groove, and when the portable badminton net rack is in the use state, the buckle is inserted in the locking slot,
• wherein each of the lock assemblies further comprises a key lock, an end cover, a first reset spring and a second reset spring, the end cover is configured to be covered on a second end of the adjustable rotary joint, the key lock is slidably arranged on the end cover, a first end of the first reset spring is fixed to the end cover, a second end of the first reset spring is fixed to the key lock, a first inclined surface is provided on a side wall of the key lock, a second inclined surface is provided on a side wall of the buckle, the first inclined surface is configured to be slidable relative to the second inclined surface, a first end of the second reset spring is fixed to the adjustable rotary joint, and a second end of the second reset spring is fixed to the buckle.