Safe and stable pulley device for shoe heel

Abstract

The invention relates to a safe and stable pulley device for a shoe heel. The pulley device comprises a pulley base, a pulley assembly, a blocking cover and two U-shaped blocking rods, two pulley grooves and a communicating groove are formed in the pulley base, the outer wall face of each pulley groove is composed of a main wall face, a transition wall face and a lower wall face, each transition wall face is provided with a limiting wall section matched with the outer wall of the end of the pulley assembly, and a first elastic compensation piece is connected to the acting face of each limitingwall section; isolation blocks are arranged on the front side and the rear side of the communicating groove correspondingly, arc-shaped stop blocks are arranged at the top ends of the opposite side faces of the isolation blocks in an opposite protruding extending mode correspondingly, and second elastic compensation pieces are connected to the acting faces of the arc-shaped stop blocks; the firstelastic compensation sheet and the second elastic compensation sheet are both rubber sheets with honeycomb structures. The requirement for manufacturing precision of the distance between the second ends of the U-shaped stop levers and the top face of the stop cover and the assembling difficulty can be reduced, the pulley assembly is prevented from floating up and down, the impact influence on thestop cover when the pulley assembly is switched to the downward protruding state is reduced, and the limiting effect on the pulley shaft in the downward protruding state is enhanced.

Description

[0001] This application is a divisional application for an invention patent application titled "Pulley Device for Heels and Roller Skates and Walking Shoes with the Pulley Device". The filing date of the original application is 2018-08-29. The number is 201810993972.3. technical field [0002] The invention relates to the technical field of footwear, in particular to a safe and stable pulley device used at the heel. Background technique [0003] With the development of society and the improvement of living standards, people are constantly pursuing sports that are both stimulating and entertaining, and violent walking shoes have emerged as the times require, but the existing violent walking shoes have the following deficiencies in the use process: one is Since the rollers need to be disassembled frequently, the slots are deformed and worn, resulting in loose axles. If not handled in time, they will suddenly fall off and become necrotic during high-speed gliding, causing the s...

AI Technical Summary

Problems solved by technology

[0003] With the development of society and the improvement of living standards, people are constantly pursuing sports that are both stimulating and entertaining, and violent walking shoes have emerged as the times require, but the existing violent walking shoes have the following deficiencies in the use process: one is Because the rollers need to be disassembled frequently, the card slots are deformed and worn, resulting in loose wheel shafts. If not handled in time, they will suddenly fall off and become necrotic during high-speed gliding, causing the skater to fall, posing a serious safety hazard

The second is that it is inconvenient to install and disassemble the rollers, and it must be completed with the help of disassembly tools

[0005] However, in the actual production and use process, the applicant found that: 1. To prevent the pulley assembly from floating up and down when it is in use, the height of the space between the second end of the U-shaped stop bar and the cover is required to match the pulley shaft The diameter of this place requires relatively high manufacturing accuracy, and the installation position of the second end of the U-shaped bar is also required to be high during assembly, and it cannot be too high or low, otherwise the height cannot be guaranteed even if the dimensional accuracy meets the standard Matching the diameter of the pulley shaft; 2. There is a gap between the two ends of the pulley shaft of the pulley assembly and the side wall of the wheel groove to ensure the normal rotation of the pulley body, and the switch of the pulley assembly from the retracted state to the downward convex state is to remove the slip. The blocking of the cover is completed by the push-down force of the first compression spring. In this way, the cover at the bottom opening of the communication groove is mainly used to receive the impact and limit the pulley shaft. The combination strength of the cover is required to be high, and it has been used for a long time. If you do not pay attention to maintenance, it may cause the cover to fall off and cause an accident

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