Coupling element for the connection between adjacent grilled walls of a pet cage

A coupling element connecting a first net wall and a second net wall adjacent and orthogonal to each other of a pet cage, comprising:

• an elongated body, wherein the elongated body comprises one side of which ends with a first arched coupling appendage, and an opposite side with a head comprising a second arched coupling appendage and a third arched coupling appendage facing the first arched coupling appendage on opposite sides of the elongated body, wherein the first arched appendage and the second arched appendage and third arched appendages define a first seat and a second seat for coupling of a first rod and a second rod forming part of the first net wall, and wherein the third arched appendage defines a third seat for coupling to a third rod forming part of the second net wall to which the first wall is connected;
• wherein the third seat is associated with an elastic tongue configured to retain the third rod of the second net wall to which the first net wall is connected, wherein the elastic tongue extends cantilevered in an oblique direction from a surface of the elongated body facing the third seat and ends with a free end at an inner area of the third seat comprising a concavity opposite a concavity of the third seat retaining the third rod, wherein the free end of the elastic tongue is located in correspondence of an opening obtained on a top of the head;
• wherein the third rod is retained at a position at the concavity of the free end of the elastic tongue;
• and
• wherein the third rod is released from the position present in the concavity of the free end of the elastic tongue to uncouple the coupling element by utilizing fingers to exert pressure towards the elongated body of the coupling element on at least one of:
• the free end of the elastic tongue and the body of the elastic tongue.