Elevator two-way safety clamp

Abstract

The invention relates to the technical field of elevator safety devices, in particular to an elevator two-way safety clamp. The elevator two-way safety clamp comprises a clamp body frame, an upper braking device and a lower braking device, an interlock lifting and pressing rod is arranged in the middle of the clamp body frame from top to bottom in a penetrating mode, and the upper braking device and the lower braking device are placed on the upper part and the lower part of the clamp body frame correspondingly; and the elevator two-way safety clamp further comprises a braking sliding sheet, the bottom end of the braking sliding sheet is connected with a braking rod, and the braking rod is connected with an elevator torsion rod; the braking sliding sheet is provided with an upper sliding groove and a lower sliding groove, an upper sliding column is arranged on one side of an upper sliding block in an extending mode, the upper sliding column is slidably arranged in the upper sliding groove, a lower sliding column is arranged on one side of a lower sliding block in an extending mode, and the lower sliding column is slidably arranged in the lower sliding groove. According to the elevator two-way safety clamp, the structure is simple and novel, the two-way safety clamp is operated through a single torsion rod, the normal work of existing two-way safety clamps is not affected, stop protection is achieved when a lift car moves at excessive speed, mass production is achieved, the structure is compact, the occupied space is small, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of elevator safety devices, in particular to an elevator two-way safety gear. Background technique [0002] Along with the occurrence of elevator top-rushing accidents all over the world, countries around the world have begun to formulate safety regulations for upward overspeed protection. Existing elevator safety gears have the following two types: 1. There is an upper brake device on the car frame, and a lower brake device under the car frame, which is connected by a connecting rod about the height of the car frame; the disadvantage is that the structure Complicated and inconvenient to install and debug. 2. The upper and lower braking devices installed under the car frame have a sliding wedge on the upper and lower sides; when braking, after the single wedge is wedged between the guide rail and the caliper body, the braking device itself needs to float for centering Processing, pretreatment is required d...

AI Technical Summary

Problems solved by technology

Existing elevator safety gears have the following two types: 1. There is an upper brake device on the car frame, and a lower brake device under the car frame, which is connected by a connecting rod about the height of the car frame; the disadvantage is that the structure Complicated, inconvenient to install and debug

2. The upper and lower braking devices installed under the car frame have a sliding wedge on the upper and lower sides; when braking, after the single wedge is wedged between the guide rail and the caliper body, the braking device itself needs to float for centering Processing, pretreatment is required during installation; and two sets of linkage devices for left and right braking are required, the structure is complex, and the activity space occupied is large

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