Tube fitting capable of quick assembly and disassembly

A tube fitting capable of quick assembly and disassembly, comprising a joint, a plug-in tube, and a buckle;

• said joint includes a tube body and a connector provided at an end of said tube body;
• wherein an accommodating cavity is provided in said connector, an inserting opening is provided on a side wall of said connector, and a tube inserting hole is provided in a top wall of said connector;
• said accommodating cavity is in communication with an inner cavity of said tube body, said inserting opening, and said tube inserting hole;
• said buckle is passed through said inserting opening, inserted into said connector and clamped therewith, partially accommodated in said accommodating cavity, and partially exposed outside said connector;
• during installation, said plug-in tube is inserted into said accommodating cavity from said tube inserting hole and pushes said buckle so that said buckle is clamped with said connector and said plug-in tube at the same time, thereby achieving a quick, fixed connection between said plug-in tube and said connector;
• during disassembly, said buckle is pressed to release said buckle from said connector and said plug-in tube, and said plug-in tube is pulled out of said connector whereby quick disassembly of said plug-in tube from said connector is accomplished;
• a middle of said buckle is provided with a buckle hole;
• said plug-in tube passes through said buckle hole before entering said inner cavity of said tube body;
• opposite two side walls of said buckle hole are respectively provided with a pressing portion and a clamped portion;
• said pressing portion is exposed outside of said connector;
• said clamping portion is located inside said tube inserting hole;
• said plug-in tube enters said tube inserting hole, pushes said clamping portion and clamped therewith;
• two first clamping protrusions are respectively provided at opposite two sides of said buckle hole of said pressing portion;
• two clamping slots are respectively provided at opposite two side walls of said connector;
• when said buckle is inserted into said connector from said inserting opening, said opposite two side walls of said connector and said first clamping protrusions are in an interference fit, and pressed against each other;
• when said first clamping protrusions move to said clamping slots, said first clamping protrusions are inserted into said clamping slot and clamped therewith, so that said buckle is fixedly connected to said connector;
• two second clamping protrusions are provided on a hole wall of said buckle hole;
• two blocks are respectively provided on said cavity wall of said accommodating cavity;
• said blocks cooperate with said second protrusions to limit said buckle;
• a top face or a bottom face of said pressing portion is provided with a limiting plate, and a baffle is provided at said inserting opening;
• said baffle blocks said limiting plate so as to limit a position where said buckle is inserted into said connector so that a part thereof is exposed outside said connector;
• wherein an avoiding space is disposed among said first clamping protrusion, a hole wall of said buckle hole, and said clamping slot.