Shoelace tightening device

Abstract

The invention discloses a shoelace tightening device. The shoelace tightening device comprises a base as well as a rope winding part and an upper cover which are sequentially arranged on the base, wherein a sleeve is arranged on the base, one tooth profile structure is arranged at the upper part of the inner circumferential side of the sleeve, two lacing holes respectively used for enabling two ends of a shoe lace to be penetrated into the sleeve are formed in the lower part of the sleeve, the rope winding part is rotatably fixed in the sleeve, a non-return piece which is against with the tooth profile structure and enables the rope winding part to rotate unidirectionally only is arranged on the peripheral side of the upper part of the rope winding part, a winding shaft used for fixing the two ends of the shoelace and winding the shoelace is arranged at the lower part of the rope winding part, the upper cover rotatably covers the upper end part of the sleeve, a pawl which extends to one side of the non-return piece, can guide the non-return piece to deform, enables the end part of the non-return piece to be separated from the tooth profile structure of the sleeve and drives the rope winding part to rotate reversely to release the shoelace is arranged at the lower end of the upper cover, a limit block used for limiting deformation magnitude of the end part of the non-return piece is also arranged on the peripheral side of the rope winding part, and the limit block is located at a deformation orientation side of the non-return piece during unidirectional rotation.

Description

technical field [0001] The invention relates to the field of auxiliary devices for tying shoelaces, in particular to a shoelace tightening device. Background technique [0002] At present, most of the shoes on the market need to tie the shoelaces manually, and usually people do not pay special attention to whether the shoelaces are automatically loosened during the walking process, and the loosening of the shoelaces can easily lead to the user stepping on the shoelaces and falling or spraining. , especially for some outdoor sports enthusiasts, being able to ensure that the shoelaces maintain a good tightness without loosening will greatly improve their personal safety and shoe-wearing experience. Although there are some twisting devices on the market. It is convenient to tie shoelaces, but most of them are complicated and the structure is not simple enough. It requires multiple components to cooperate with each other to complete the shoelace, so it is easy to be stuck or dam...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the shoes on the market need to be tied manually, and usually people do not pay special attention to whether the shoelaces are automatically loosened during walking, and the loose shoelaces may easily cause the user to step on the shoelaces and fall or sprain Especially for some outdoor sports enthusiasts, being able to ensure that the shoelaces maintain good tightness without loosening will greatly improve their personal safety and shoe wearing experience. Although there are some twisting devices on the market to It is convenient to tie shoelaces, but most of them are more complex and not concise enough in structure, requiring multiple parts to cooperate and link to complete shoelaces, so it is easy to get stuck or damaged after long-term use

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