Fall prevention lifting device and fall prevention method thereof

A lifting device and anti-fall technology, applied in the direction of lifting device, lifting frame, etc., can solve the problems of non-continuous production, bearing nut sliding wire, etc., and achieve the effect of strong versatility, avoidance of jamming, and ingenious concept.

Pending Publication Date: 2018-09-21
ANHUI GVG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem that the screw mechanism of the lifting device in the prior art has the problem of slippage of the load-bearing nut and cannot be continuously produced, the present invention provides an anti-fall lifting device and its anti-fall method

Method used

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  • Fall prevention lifting device and fall prevention method thereof
  • Fall prevention lifting device and fall prevention method thereof
  • Fall prevention lifting device and fall prevention method thereof

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Experimental program
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Effect test

Embodiment 1

[0051] The anti-fall lifting device of the present embodiment, such as figure 1 , 2 , shown in 3 and 4, including frame 5, lifting platform 7 and power mechanism 8, is characterized in that, also comprises double-nut screw mechanism, and described double-nut screw mechanism comprises screw mandrel 1 and is sleeved on screw mandrel 1 successively The main nut 2 and the auxiliary nut 4, wherein: the two ends of the screw rod 1 are connected to the power mechanism 8 in transmission type, and the power mechanism 8 is fixed on the frame 5; the main nut 2 is sleeved on the nut seat along the outer wall 24, the nut seat 24 is fixedly connected with the lifting platform 7; a gap is reserved between the bottom end of the main nut 2 and the auxiliary nut 4, which can avoid the load bearing of the auxiliary nut 4, the main nut 2 is load bearing, and the auxiliary nut 4 is not load bearing ; When the sliding wire between the main nut 2 and the lead screw 1 fails, the main nut 2 is slid by ...

Embodiment 2

[0054] The anti-fall lifting device of this embodiment has the same basic structure as that of Embodiment 1, and the improvements are as follows: figure 2 As shown, the power mechanism 8 includes an upper bearing block 81, a shaft coupling 82, a lower bearing block 83 and a motor 84; the motor 84 is fixed on the upper beam of the frame 5, and is connected with the screw mandrel 1 through the shaft coupling 82, so that The upper bearing seat 81 and the lower bearing seat 83 are respectively fixed on the upper part and the lower part of the frame 5, and are socketed with the two ends of the screw rod 1, so as to realize the purpose of continuous lifting.

Embodiment 3

[0056] The basic structure of the anti-fall lifting device of this embodiment is the same as that of Embodiment 2. The improvement is that the bottom end of the main nut 2 is provided with symmetrical protrusions 22, and the protrusions 22 can be one or more, such as Figure 5 , 7 , 8, 9, and 10, there are 2 in this embodiment, such as Figure 5 , 11 , 12, 13, and 14, the top of the auxiliary nut 4 is provided with a card groove 41 and a card platform 42 corresponding to the card protrusion 22, and there are also two, and the card protrusion 22 and the card platform 42 are simply overlapped, and the main Before the nut 2 slides the wire, the card protrusion 22 and the card table 42 are overlapped together after a little contact, and the main nut 2 can drive the auxiliary nut 4 to move up and down with the screw 1; when the wire between the main nut 2 and the screw 1 fails Finally, because the main nut 2 bears the weight and adds its own gravity, it will slide down to the aux...

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Abstract

The invention discloses a fall prevention lifting device and a fall prevention method thereof, and belongs to the technical field of lifting devices. The fall prevention lifting device comprises a rack, a lifting platform and a power mechanism, and further comprises a double-nut screw mechanism, wherein the double-nut screw mechanism comprises a screw rod and a main nut and a sub nut which sequentially sleeve the screw rod, two ends of the screw rod are in transmission connection with the power mechanism, and the power mechanism is fixed to the rack; the main nut is in sleeved connection on anut seat along the outer wall, and the nut seat is fixedly connected with the lifting platform; an interval is reserved between the bottom ends of the main nut and subnut to avoid the load bearing ofthe subnut, so that the main nut holds the weight and the sub nut does nothold the weight. The fall prevention lifting device and the fall prevention method thereof have the advantages that the designis ingenious, and the problems in the prior art are solved that a weight-bearing nut of a screw rod mechanism of the lifting device slips and the production cannot be continuous.

Description

technical field [0001] The present invention relates to the technical field of lifting devices, in particular to an anti-falling lifting device and a method for anti-falling. Background technique [0002] The screw rod in the lifting device is the basic transmission mechanism of common mechanical equipment. When the load-bearing nut is raised and lowered on the screw rod, due to long-term, overloaded operation or product quality problems, the load-bearing nut often has a slippage problem, causing the entire machine or equipment to fail. Downtime and can not continue to produce, and even, sometimes cause or result in safety accidents. [0003] After retrieval, Chinese Patent Publication No. CN103993731 B, publication date 2015.12.09, name of invention: a screw nut type construction scaffold anti-fall device, including screw, nut, anti-fall frame and spring, the anti-fall frame is set nut, the upper part of the nut is provided with a spring, the screw rod runs through the ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F7/14B66F7/28
CPCB66F7/14B66F7/28
Inventor 王闯强金凤路丽珠黎广唐帆蒋水金费大壮张开炳
Owner ANHUI GVG NEW MATERIAL CO LTD
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