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Safety lifter

A lift and lift mechanism technology, applied in the field of lifts, can solve the problems of out of control of the main table and the limitation of the load capacity of the lift, and achieve the effects of enhanced load-bearing capacity, convenient use and compact overall structure

Active Publication Date: 2013-01-30
JINAN DALISHEN MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no matter the electric motor-powered elevator or the hydraulic elevator, there is no chain breaking protection device, so there is a danger that the chain will be broken during use and the main table will be out of control, and the chain is used to lift the main table. The load capacity of the lift is very limited

Method used

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with accompanying drawing and embodiment of description:

[0016] As shown in the accompanying drawings. A kind of safety hoist, comprises a main platform 2 that runs up and down along a pair of vertically installed track main frame 1, is installed on the lifting mechanism above the main platform 2, hydraulic station 5 and electric control system, and described track main frame 1 is made up of vertical The vertical rods arranged on both sides and the horizontal rods installed in parallel between the two vertical rods are composed. The card channel 12 is symmetrically provided, and the card channel 12 is in the shape of a long strip. The card channel 12 is evenly distributed with rectangular through holes, and the rectangular through holes are matched with the rectangular bumps; A spring hydraulic cylinder 11 is arranged horizontally at the position of the road 12, and the end of the piston rod of the ...

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Abstract

The invention relates to a safety lifter mainly solving the problem that the traditional lifter has the problem of poor safety because loading capacity is limited. The safety lifter comprises a track main frame, a main table facet, a lifting mechanism, a hydraulic station and an electric control system, wherein both sides of the track main frame are symmetrically provided with clamping passages; rectangular through holes are uniformly distributed on the clamping passages; the positions below the main table facet, which correspond to the clamping passages, are respectively provided with spring hydraulic cylinders; the end parts of pistons rods of the spring hydraulic cylinders are provided with wedge-shaped blocks; the spring hydraulic cylinders are connected with the electric control system; a broken rope protection mechanism is arranged between the lifting mechanism and the track main frame; the lifting mechanism comprises a lower tackle, an upper tackle, a lifting hydraulic cylinder, a lifting pulley and a lifting steel rope; and the broken rope protection mechanism comprises a protective pulley and a protective steel rope. The safety lifter has the advantages of greatly enhanced safety and loading capacity, compact structure, convenience for use, and the like.

Description

technical field [0001] The invention relates to a lift, in particular to a safety lift. Background technique [0002] The traditional elevator consists of the main platform of the elevator, a balance weight, a motor, and a chain connecting the motor and the main platform. Its lifting principle is mainly to use the power of the motor to pull the main table of the elevator through the chain to complete the lifting process of the main table. However, if this kind of lift is cut off during use, it will cause the situation that the main platform of the lift can neither rise nor fall, which is extremely inconvenient. [0003] Later, with the development of technology, a hydraulic lift with hydraulic power instead of electric motor power appeared. The hydraulic lift can use the dead weight of the piston rod to drop when it descends, avoiding the situation that the main table can neither rise nor fall. [0004] At present, the most common hydraulic lifts on the market are cylinder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/02B66B5/16B66B7/06
Inventor 李庆茂张宝玉张立平
Owner JINAN DALISHEN MACHINERY MFG
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