Elevator emergency hydraulic buffer capable of preventing reset performance failure

Abstract

The invention discloses an elevator emergency hydraulic buffer capable of preventing reset performance from losing efficacy, and relates to the technical field of hydraulic buffers, in particular to an elevator emergency hydraulic buffer capable of preventing reset performance from losing efficacy, which comprises a cylinder body, an electromagnetic ring fixedly sleeved outside the cylinder body, and a limiting strip fixedly sleeved outside the cylinder body, a supporting ring is movably arranged outside the barrel in a sleeving mode, and a metal ring is fixedly connected to the bottom of the supporting ring. According to the elevator emergency hydraulic buffer capable of preventing the reset performance from losing efficacy, a supporting ring is arranged above an electromagnetic ring, the supporting ring can be fixed to a proper position during emergency use through cooperation of a metal ring, meanwhile, the upper face of the supporting ring is connected with a reset plate through a standby spring, and through cooperation of a metal block and an electromagnetic block, the reset performance can be effectively improved. When the internal reset spring fails, the standby spring can play a role of a standby reset spring to assist the piston connecting rod in resetting, and normal work of the device is guaranteed.

Description

technical field [0001] The invention relates to the technical field of hydraulic buffers, in particular to an elevator emergency hydraulic buffer which can prevent failure of reset performance. Background technique [0002] Hydraulic buffers rely on hydraulic damping to buffer and decelerate objects acting on them until they stop, and play a certain degree of protection. They are suitable for lifting transportation, elevators, metallurgy, port machinery, railway vehicles and other mechanical equipment. A safety buffer device to prevent damage to the mechanism caused by hard collisions during work. The inner wall of the cylinder has a hydraulic buffer with an overflow hole. When the collision plate at the bottom of the car hits the rubber buffer contact on the top of the buffer piston, the contact is accompanied by the auxiliary spring Absorbing the first impact, the car descends further forcing the piston into the oil-filled cylinder, and the oil is forced from the orifice i...

AI Technical Summary

Problems solved by technology

[0003] During the use of the buffer, after repeated tests, at the same time, it is placed in the hydraulic oil for a long time, and the quality of the spring is difficult to guarantee. If it is left standing for a long time, there is a risk of damage when it is used in some emergency situations. Affect the reset work of the follow-up party. In order to ensure the normal production of the emergency buffer, we propose an elevator emergency hydraulic buffer that can prevent the reset performance from failing.

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