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Self-balancing progressive elevator safety gear

A progressive, self-balancing technology, applied in elevators, transportation and packaging, etc., can solve the problems of high cost, cumbersome installation, lateral offset of the car, etc., to meet the requirements of reducing installation accuracy, smooth braking process, and easy installation fixed effect

Active Publication Date: 2018-01-16
ZHEJIANG ELLY ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But at present there are mainly two types of progressive safety gears, one is symmetrical, which requires two wedges to be symmetrically divided and act at the same time. The main problem with this structure is that the structure is complex and the volume is large. The installation is cumbersome, the cost is high, and the force cannot be completely balanced; the other is asymmetrical, it only has a wedge on one side, and the other side is directly the friction plate. When braking, the side with the wedge Obviously, the force is large, which will lead to the lateral deviation of the car as a whole when braking, and a large shake

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

[0016] Example. Self-balancing progressive elevator safety gear, such as Figure 1 to Figure 4 Shown: a horizontal outer frame 1 including a semi-enclosed structure, a U-shaped inner frame 2 that can slide horizontally in the horizontal outer frame 1 is provided in the horizontal outer frame 1, and a friction plate is provided on the inner side of one end of the U-shaped inner frame 2 , the other end is provided with an adjusting screw 7 passing through the U-shaped inner frame 2, and the nut part of the adjusting screw 7 is located outside the U-shaped inner frame 2; the inner side of the U-shaped inner frame 2 is provided with a push plate 11; the push plate 11 One side is against the adjusting screw 7, the other side is connected with a compression spring 5, the other end of the compression spri...

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Abstract

The invention discloses a self-balancing progressive elevator safety gear, which comprises a semi-enclosed horizontal outer frame, a U-shaped inner frame that can slide horizontally in the horizontal outer frame, and a U-shaped inner frame at one end of the U-shaped inner frame. The inner side is provided with a friction plate, and the other end is provided with an adjusting screw passing through the U-shaped inner frame, and the nut part of the adjusting screw is located outside the U-shaped inner frame; the inner side of the U-shaped inner frame is provided with a push plate; One side is against the adjusting screw, the other side is connected with a compression spring, the other end of the compression spring is connected with a pressure plate, a wedge is set between the pressure plate and the friction plate on the U-shaped inner frame, and the side of the pressure plate close to the wedge is an inclined surface , the side of the wedge close to the pressure plate is an inclined surface, and the other side of the wedge is provided with a friction plate. The invention can automatically balance the clamping force on both sides when the elevator car is braked, so that the elevator car can be braked stably, and the invention has simple structure, convenient assembly, small size and convenient installation.

Description

technical field [0001] The invention relates to an elevator safety gear, in particular to a progressive elevator safety gear. Background technique [0002] In the elevator system, the progressive safety gear is an essential safety device. It is usually fixed on the elevator car. When the elevator runs abnormally and the overspeed governor operates, the lifting mechanism will pull the wedge on the progressive safety gear to clamp the elevator guide rail to brake elevator car. [0003] But at present there are mainly two types of progressive safety gears, one is symmetrical, which requires two wedges to be symmetrically divided and act at the same time. The main problem with this structure is that the structure is complex and the volume is large. The installation is cumbersome, the cost is high, and the force cannot be completely balanced; the other is asymmetrical, it only has a wedge on one side, and the other side is directly the friction plate. When braking, the side wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/22
Inventor 唐永泉唐毅朱文娥潘唐玉
Owner ZHEJIANG ELLY ELEVATOR
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