Retaining shoulder type damping fastener suitable for in-line spike holes

Abstract

The invention discloses a retaining shoulder type vibration reduction fastener suitable for in-line spike holes. The retaining shoulder type vibration reduction fastener comprises an upper base plate;a lower base plate; the upper base plate is provided with a first through hole, the lower base plate is provided with a second through hole, and the first through hole and the second through hole arematched with the in-line spike holes; a first transverse blocking shoulder and a second transverse blocking shoulder are symmetrically arranged on the first side of the lower base plate, and a thirdtransverse blocking shoulder and a fourth transverse blocking shoulder are symmetrically arranged on the second side of the lower base plate; a first elastic strip rear seat and a second elastic striprear seat are symmetrically arranged on the first side of the upper base plate, and a third elastic strip rear seat and a fourth elastic strip rear seat are symmetrically arranged on the second sideof the upper base plate; the first elastic strip rear base extends to form a first transverse limiting face, the second elastic strip rear base extends to form a second transverse limiting face, the third elastic strip rear base extends to form a third transverse limiting face, and the fourth elastic strip rear base extends to form a fourth transverse limiting face. The shoulder arrangement problem of the in-line shoulder damping fastener is solved, and shoulder and self-locking structural design of a fastener system is achieved.

Description

technical field [0001] This specification relates to the field of rail vibration reduction, in particular to a shoulder type vibration reduction fastener suitable for in-line spike holes. Background technique [0002] How to solve the impact of vibration and noise on the environment and residents' life in rail transit has become the focus of people's attention on subway construction, and it has also become one of the keys to the sustainable development of urban rail transit construction. Due to the limited vibration reduction effect of traditional vibration reduction technology in terms of vibration reduction and noise reduction, the vibration and noise generated by trains passing by will still directly affect people's life and health, and also cause adverse effects on the surrounding environment to a certain extent. [0003] Some types of vibration-damping fasteners have also been introduced on the market, and have achieved certain vibration-reducing effects. Among them, sh...

AI Technical Summary

Problems solved by technology

This design has achieved relatively good application results in practical applications. However, when the product is applied to the in-line spike hole interface, due to the limitation of structural space, there are great difficulties in product design, and it is impossible to design the lateral shoulder and the upper part at the same time. The self-locking structure prevents the product from being applied in the working condition of in-line spike holes

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