Subway shielding door expansion joint device

Abstract

The invention discloses a subway shielding door expansion joint device which is applied to connections of a subway shielding door in a platform expansion joint position. The subway shielding door expansion joint device comprises two connecting plates symmetrically arranged on the left side and the right side, and the fronts and the rears of the two connecting plates are respectively connected with a cavity with an opening on the side; the openings of the front cavities of the connecting plates at the left side and the right side face each other, and both sides of an expansion plate are respectively inserted in the two openings; and the openings of the rear cavities of the connecting plates at the left side and the right side face each other, and both sides of another expansion plate are respectively inserted in the two openings. During operation, when a shielding fixing door moves slightly in the left or right direction due to the expansion of a platform, the cavity on the moving side synchronously moves with the door, but the front expansion plate and the rear expansion plate slide in the cavities only. The invention has the advantages of reliable structure and wide expansion range. The material of the expansion plates is flexible under the condition of meeting favorable expansion function, and thus, the decoration effect of the entire shielding door can be kept uniform.

Description

technical field [0001] The invention is applied to the field of subway shield doors, and in particular relates to the connection of shield doors at platform expansion joints. Background technique [0002] With the large-scale advancement of subway construction, more and more civil engineering units of subway projects have set up one or more expansion joints of different sizes on the side of the screen door installation area to adjust the settlement and expansion of the civil engineering. The design of the opening is particularly important, not only to meet the expansion and settlement functional requirements of the deformation joint, but also to meet the overall decoration style of the screen door body and the perfect combination with the door body. In the previous practice, the measure of adding telescopic rubber strips was adopted. Due to the limitation of the characteristics of the rubber strips, it meets the functional requirements, but it is difficult to make the effect...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects that the expansion joints of the existing subway screen doors adopt the method of setting expansion joints, the appearance is incoherent, the deformation of the rubber strips is limited, and the reliability is not good, the present invention provides an expansion joint device for subway screen doors. The expansion and contraction range is large, which can not only realize the telescopic and settlement adjustment functions of the subway screen door, but also ensure that the decoration effect of the entire side of the subway screen door is consistent

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