Snap-locking connector

A snap-locking connector, comprising

• a connecting sleeve (1) movably provided with a locking block (11),
• an upper housing assembly snap-fitted with the locking block (11),
• a locking snap ring (12) adjustably sleeved on an outer side of the connecting sleeve (1) and abutting against the locking block (11) to provide positional restriction, and
• a lower housing assembly detachably connected to the connecting sleeve (1);
• wherein an upper valve core (2) is elastically disposed within the upper housing assembly, and a first sealing ring (20) is provided on the upper valve core (2);
• the lower housing assembly contains a push rod (50) and a lower valve core (5) elastically mounted, the lower valve core (5) is sleeved on an outer side wall of one side of the push rod (50);
• a second sealing ring (51) is arranged at a corresponding sleeving position on the push rod (50);
• in use, the upper housing assembly presses against the lower valve core (5), causing the push rod (50) to push the upper valve core (2) outward, thereby establishing communication between the upper housing assembly and lower housing assembly;
• the locking block (11) snaps into the upper housing assembly to restrict movement, and the locking snap ring (12) is adjusted along the outer side of the connecting sleeve (1) to abut and secure the locking block (11);
• for disassembly, the locking snap ring (12) is moved away, the locking block (11) is pressed to release a snap position, and under elastic force, the upper valve core (2) is pushed back by the push rod (50);
• a liquid outlet end of the upper housing assembly seals against the first sealing ring (20), while the second sealing ring (51) seals against a liquid outlet end of the lower housing assembly;
• wherein one side of the connecting sleeve (1) is provided with a connecting boss (10), while an other side of the connecting sleeve (1) is provided with a fixed boss (100) that abuts against and limits a position of the locking snap ring (12);
• a through hole communicating with the connecting sleeve (1) is formed in the connecting boss (10), within which a locking block (11) is disposed;
• an open slot (101) is formed in the connecting boss (10) at a position corresponding to the locking block (11), and a positioning groove (102) is formed at an lower end of a slot opening in the connecting boss (10);
• the locking block (11) is provided with a clearance hole (111) that communicates with the through hole, and one side of an opening of the clearance hole (111) is provided with a clearance slope (112);
• one side of the locking block (11) is provided with an extension section (113) that extends out of the connecting boss (10);
• two positioning lugs (114) are symmetrically arranged on an inner side wall of the extension section (113);
• a first placement groove (115) is provided at a position between the two positioning lugs (114);
• a first guide post (131) is disposed within the first placement groove (115), and a return spring (14) is sleeved on an outside of the first guide post (131);
• one end of the return spring (14) abuts against a bottom of the first placement groove (115), and an other end of the return spring (14) extends outward to abut against a corresponding position on the connecting sleeve (1).