Mechanical elevator shock absorbing device

Abstract

The invention relates to a mechanical elevator shock absorbing device. The mechanical elevator shock absorbing device comprises a framework horizontally mounted at the bottom of an elevator cage, a crank-link mechanism arranged inside the framework, and a pair of clamping jaws supported at the end part of the framework, wherein the pair of clamping jaws is driven by the crank-link mechanism to clamp an elevator guide rail so as to lock the bottom of the cage to the elevator guide rail; the crank-link mechanism comprises a guide post, a guide sleeve in sliding fit with the guide post, a pair of cranks symmetrically arranged on the two sides of the guide sleeve, and a push-pull rod; the push-pull rod extends in the long axis direction of a guiding section of the guide sleeve; one end of the push-pull rod is fixedly connected with the end part of the guiding section of the guide sleeve; the other end of the push-pull rod is driven by a driving mechanism to push the guide sleeve to slide along the guide post so as to drive the clamping jaws on the cranks to be oppositely clamped or loosened. The mechanical elevator shock absorbing device has the advantages as follows: the mechanical elevator shock absorbing device adopts a mechanical structure, is firm in structure, avoids the conventional mechanical electrical control, improves the safety and the stability, and is convenient to maintain and long in service life.

Description

technical field [0001] The invention relates to an elevator shock absorber, in particular a mechanical elevator shock absorber. Background technique [0002] Elevators are integrated into people's work, life and other fields, and play a pivotal role. It is precisely because of the existence of elevators that they can bring convenience to people's work and life. When the elevator stops, the vibration amplitude is directly It affects the ride comfort of the passengers in the car, so how to arrange the shock absorbing device reasonably in the elevator structure is extremely important. [0003] In the prior art, a damping device is usually arranged at the bottom of the car, and the current damping device is generally a rubber shock absorber, which has a short service life, poor damping effect and is easy to feel strong vibrations. [0004] Such as figure 1 As shown, there is a kind of elevator damping device at present, comprises the shock absorbing box that is installed on th...

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Problems solved by technology

[0003] In the prior art, a damping device is usually installed at the bottom of the car. The current damping device is generally a rubber shock absorber, which has a short service life, poor damping effect and is easy to feel strong vibrations.

[0004] like figure 1 As shown, there is a kind of elevator damping device at present, comprises the shock absorbing box that is installed on the bottom of elevator car and the fixed frame 1 above the shock box, and the shock absorber is fixed on the bottom of elevator car by the fixed frame 1 above it; The vibration box includes a box body 2, a clamping mechanism on the front side of the box body 2, and an actuator and a driving mechanism in the box body 2. The clamping mechanism can be driven by the driving mechanism and the actuator to clamp the elevator guide rail, and then the car The bottom is locked on the guide rail of the elevator; the clamping mechanism includes a pair of linear guide rails 3 arranged along the long axis direction of the front side of the box body 2, a pair of sliders 4 slidingly matched with the linear guide rails 3, and a pair of clamping blocks 5. The clamping blocks 5 are respectively fixed on the corresponding end surfaces of a pair of sliders 4, and are driven by the sliders 4 to slide along the direction of the linear guide rail 3 to realize clamping and loosening; the actuator adopts an eccentric clamping mechanism, and the eccentric clamp The tightening mechanism needs to control the stroke of the slider through the limit switch; when the above-mentioned elevator damping device is working, when the elevator stops, a pair of clamping blocks 5 clamp the elevator guide rail to prevent the car from shaking, and its shock absorption effect is good. , its actuator needs electrical control, the work is unstable, and due to the limitation of the life of the contact, its reliability is poor and maintenance is not easy

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