Car toe guard with automatic height adjustment

Abstract

The invention discloses car toe guard with automatic height adjustment. The car toe guard comprises a fixed guard plate and sliding guard plates, which are parallel with each other. Vertical guide plates are arranged on the two sides of the fixed guard plate, and the sliding guard plates are inlaid in the guide plates. Each guide plate comprises a bottom plate and a press plate, the inner side ofthe bottom plate is fixedly connected with the outer side of the fixed guide plate, and the outer side of the bottom plate is fixedly connected with the outer side of the press plate. A guide groove is formed between the bottom plate and the press plate, a vertical first groove is formed in the middle of the bottom plate, and a vertical second groove is correspondingly formed in the press plate. L-shaped folding edges are arranged on the two sides of each sliding guard plate and are inlaid in the first grooves. First balls are arranged between each L-shaped folding edge and each first groove,and second balls are arranged in each second groove. The sliding guard plates can slide in the guide grooves up and down. The car toe guard has the characteristics of convenience in installation and maintenance and safe and reliable use, and can automatically adjust the height.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a car foot guard with automatic height adjustment. Background technique [0002] According to the "Safety Code for Elevator Manufacturing and Installation", toe guards should be installed on the sill of each car. The height of the vertical part of the toe guards should not be less than 0.75m. The included angle should not be greater than 60°, and the projection of the slope on the horizontal plane should not be less than 20mm. That is to say, the total height of the toe guard should not be less than 0.785m, which can be obtained through comprehensive calculation according to the requirements of the elevator specification, and the car toe guard requires that the depth of the pit should not be less than 1.1m. Conventional elevators are affected by some other components and generally require that the depth of the pit is not less than 1.5 meters, so ordinary toe guards can also me...

AI Technical Summary

Problems solved by technology

However, for the installation of elevators in old buildings, due to the limitations of various pipelines underground in the original building, the depth of the pit is less than 1m in many cases, and ordinary toe guards become one of the factors that affect the feasibility of installing elevators in old buildings

[0003] The existing car toe guards are generally steel plates vertically downward, and the car toe guards are directly installed in front of the sill bracket at the bottom of the car. This is mostly a fixed installation structure, and the toe guards cannot be adjusted. This fixed size When the depth of the car toe guard is less than a certain size, the car toe guard may hit the ground of the pit when the bottom layer of the elevator is leveled or the car is fully pressed against the buffer, resulting in damage to the toe guard and even damage to the pit workers. Accidental damage, unable to adapt to the needs of shallow pits

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