Nylon hinge for facilitating adjustment of spring torque

A nylon hinge for facilitating adjustment of spring torque, comprising a first hinge mount and a second hinge mount;

• and further comprising an adjustment device, including a limiting sleeve, a positioning sleeve, a rotation rod, and a torsion spring having two ends;
• wherein one end of the spring is connected to the rotation rod and another end of the spring is connected to the positioning sleeve;
• wherein each of the ends of the torsion spring is provided with a limiting rod respectively connected to the rotation rod and the positioning sleeve;
• wherein a perpendicular toothed surface is disposed on the rotation rod and is configured to engaged with a perpendicular toothed surface that is disposed on the limiting sleeve;
• wherein the first hinge mount comprises a first hinge part and a first rotation part standing at two ends of the first hinge part, and the first hinge part and the first rotation part are integrally formed;
• wherein the second hinge mount comprises a second hinge part and a second rotation part that are integrally formed, the second hinge part has a cylindrical structure, wherein one end of the cylindrical structure is provided with a polygonal hole, the adjustment device is pressed into the cylindrical structure of the second hinge part, and the positioning sleeve of the adjustment device is located near the polygonal hole;
• wherein the limiting sleeve is provided with a column and a polygonal limiting step configured to be movably matched with a circular hole and a polygonal limiting groove disposed on one end of the first rotation part, respectively;
• and
• the positioning sleeve is provided with a column and at least one polygonal limiting step, wherein said column of the positioning sleeve is configured to be matched with a circular hole and supported by a limiting step that are disposed on another end of the first rotation part, and said polygonal limiting step of the positioning sleeve is configured to be located in the polygonal hole of the cylindrical structure of the second hinge part;
• and
• wherein the limiting sleeve is internally provided with a through hole that movably matches with a small column that is disposed on the rotation rod, and wherein said small column of said rotation rod is adapted to be engaged with a tool for adjustment of the spring torque.