Escalator with step anti-jump mechanism

Abstract

The invention discloses an escalator with a stair anti-jumping mechanism. Stair anti-jumping hooks matched with middle leaving path driving guide rails on the corresponding sides are formed on the two stair sides; the middle leaving path driving guide rails are installed on a guide rail mold plate; protruding parts extending to the outside of the guide rail mold plate are formed on the inner sides of the middle leaving path driving guide rails; the stair anti-jumping hooks protrude in the direction close to the guide rail mold plate and are located below the protruding parts of the middle leaving path driving guide rails; and the minimum vertical distance between the tops of the stair anti-jumping hooks and the bottoms of the protruding parts of the middle leaving path driving guide rails is not larger than 4 mm. According to the escalator with the stair anti-jumping mechanism, an anti-jumping work face A is integrated on the middle leaving path driving guide rails, the position precision between the anti-jumping work face A and a stair auxiliary wheel guiding face is guaranteed in a machining manner, and therefore the position precision between the anti-jumping work face A of the middle leaving path driving guide rails and an anti-jumping work face B of the stair anti-jumping hooks is guaranteed; and meanwhile, anti-jumping guide rails are omitted, the material cost and the installing cost are both reduced, and the anti-jumping effect is also improved.

Description

technical field [0001] The invention relates to an escalator, in particular to an escalator with a step anti-jump mechanism. Background technique [0002] In subsection 5.3.4 of the standard GB16899-2011 for escalators and moving walks, it is required that "the vertical displacement of steps or pedals from their guiding system shall not be greater than 4mm". In order to meet the requirements of this standard, the usual solution is to add step anti-jump hooks on the steps, and at the same time add anti-jump guide rails on the upper and lower horizontal parts, curved parts and middle parts of the escalator to ensure that the maximum movement of the steps when they are lifted is not more than 4mm. This method of adding anti-jump rails, such as figure 1 As shown, although the standard requirements can be met, there are two disadvantages as follows: [0003] 1. More material costs are added, such as anti-jump guide rails, brackets, fasteners, etc., such as the anti-jump guide ...

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