Lacing device

A lacing device, comprising an upper cover, a main body, a ratchet mechanism, a winding wheel, and a base, wherein the winding wheel is rotatably arranged in the main body, the upper cover and the winding wheel can be connected or separated;

• wherein
• the upper cover is provided with a first meshing surface;
• when rotating in different directions, the winding wheel is capable of achieving two modes of lace fastening and lace releasing;
• two or more slide channels are formed in an upper end surface of the main body, and each of the slide channels is composed of two stop block structures;
• the ratchet mechanism is also located on the upper end surface of the main body and comprises two or more sliding blocks sliding along the slide channels and an elastic member used for pushing the sliding blocks to slide towards an outside of the main body, the elastic member is an annular body arranged above the main body, each sliding block is arranged on the annular body, a curved energy storage part used for strengthening elastic properties is arranged between two adjacent sliding blocks on the annular body, an intersection point is formed between a first side line of each sliding block in a clockwise direction and an outer circumference of the main body, the intersection point forms a main body connecting line with a center of the main body, an included angle formed by the first side line and the main body connecting line is 30° to 60°, and each sliding block is provided with a first ratchet tooth fitted with the first meshing surface to achieve engagement;
• the base is provided with a mounting cavity, and the main body is detachably arranged on the base;
• the mounting cavity is internally provided with a rotating disc;
• the mounting cavity is further internally provided with a torsional spring, and the torsional spring comprises a first movable end that can be engaged and a second movable end that can be engaged meshed;
• the first movable end is arranged on the base, and the second movable end is arranged on the rotating disc;
• the rotating disc is provided with elastic sheets, and third transmission slots fitted with the elastic sheets are formed in a lower end surface of the winding wheel, so that the winding wheel is meshed in only one rotation direction;
• and
• when the upper cover is connected with the winding wheel, the first ratchet tooth is nested and engaged with the first meshing surface, when the upper cover rotates forwards, the first meshing surface presses against the first ratchet tooth to push the sliding blocks to slide along the slide channels, and then to press the elastic member to deform, finally, each ratchet tooth enters the next first meshing surface, and then, the winding wheel is driven to rotate to achieve the lace fastening mode;
• in the lace fastening mode, the winding wheel does not drive the rotating disc to rotate, a lace can be normally fastened, when the upper cover rotates reversely, the first meshing surface is locked by the first ratchet tooth so that the sliding blocks cannot be pushed to slide along the slide channels;
• when the upper cover is disconnected with the winding wheel, the first ratchet tooth is disconnected with the first meshing surface to enter the lace releasing mode, the lace can be drawn out, then, the winding wheel is driven to rotate reversely, and then, the torsional spring is driven to rotate for energy storage;
• at the time, the lace is released, the torsional spring releases energy to drive the rotating disc to rotate forwards, and then to drive the winding wheel to rotate forwards, and then, the lace can also be partially or entirely recycled under the lace releasing mode.