Quick-release type multifunctional weight-adjustable dumbbell

The utility model relates to the technical field of dumbbells, and discloses a quick release type multifunctional weight-adjustable dumbbell, which comprises a grip tube and two groups of mounting tubes, the left side and the right side of the grip tube are respectively provided with two groups of mounting holes, the two groups of mounting holes are respectively positioned on the upper side and the lower side of the grip tube, and insertion tubes are arranged inside the two groups of mounting holes. The lower sides of the insertion pipes are connected with limiting blocks, the limiting blocks are located on the upper side of the grip pipe, threads are arranged at the bottoms of the insertion pipes, the bottoms of the insertion pipes are connected with screw blocks, the screw blocks are located on the lower side of the grip pipe, the upper sides of the two insertion pipes are connected with auxiliary handles, and the two installation pipes are located on the left side and the right side of the grip pipe respec