Construction method of height-adjustable safety guardrail device

A technology of safety guardrails and construction methods, which is applied in the directions of excavation, infrastructure engineering, and construction material processing, etc., which can solve problems such as increased safety risks at high-altitude borders, lack of protective measures, and obstacles to the normal use of mechanical equipment, so as to avoid borders Effects of operating status, safe return to normal height, and increased height

Active Publication Date: 2020-03-17
SHANGHAI NO 4 CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, when there are soil fetching and digging operations on the side of the foundation pit or on the trestle bridge, the height of the fixed-height railings will hinder the normal use of

Method used

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  • Construction method of height-adjustable safety guardrail device
  • Construction method of height-adjustable safety guardrail device
  • Construction method of height-adjustable safety guardrail device

Examples

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Embodiment 2

[0048] see Figure 7 to Figure 10 , the difference between this embodiment and Embodiment 1 is:

[0049] The height locking mechanism of the guardrail includes a screw rod 44, a nut 42 and an anti-rotation block 45. A vertical chute 11 is provided on the fixed column, and the upper rail 31 of the movable guardrail is provided with a through hole for the bolt rod of the bolt 41 to pass through. One end of the screw rod 44 is fixedly connected to the anti-rotation block 45, and the other end of the screw rod 44 passes through the vertical chute 11 of the fixed column 1 and the through hole of the upper rail 31 of the movable guardrail in sequence, and passes through the The nut 42 is fixed, the anti-rotation block 45 is located inside the fixed column 1 , and the fixed column 1 can limit the rotation of the anti-rotation block 45 around the axis of the screw rod 44 inside the fixed column 1 .

[0050] The anti-rotation block, on the one hand, can be used as a limiting device to...

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Abstract

The invention provides a construction method of a height-adjustable safety guardrail device. The method is characterized in that protection guardrails and guardrail height locking mechanisms are arranged between adjacent fixed stand columns, wherein the protection guardrails comprises fixed guardrails and movable guardrails, wherein the movable guardrails comprise movable guardrail upper bars, middle cross rods and a plurality of connecting rods, wherein the middle cross rods are located between the movable guardrail upper bars and the fixed guardrails, and the plurality of parallel connectingrods are arranged between the movable guardrail upper bars and the middle cross rods and between the fixed guardrails and the middle cross rods in a hinged mode. According to the method, the height of the movable guardrails can be adjusted according to needs, so that when soil taking, soil digging and other operations are carried out beside foundation pits and on trestles, the no-guardrail workside operation state is effectively avoided, and the safety risk of the workside operation is reduced; and in addition, the connecting rods are obviously shortened by additionally arranging the middle cross rods, so that the lateral space at the two ends of the movable guardrails does not need to be utilized for folding, the strength of the movable guardrails can be improved, and the height of the movable guardrails can be increased.

Description

technical field [0001] The invention relates to the field of safety protection, in particular to a construction method of a height-adjustable safety guardrail device. Background technique [0002] The protective railings on the edge of the foundation pit at the construction site are generally erected with steel pipe fasteners, and those with higher civilized construction standards adopt stereotyped products. The height of the railings is about 1.2m-1.8m. use. [0003] However, when there are soil fetching and digging operations on the side of the foundation pit or on the trestle bridge, the height of the fixed-height railings will hinder the normal use of mechanical equipment, often resulting in the removal of the installed railings, resulting in the lack of protective measures for this part , The risk of high-altitude border security has greatly increased. According to incomplete statistics, safety accidents caused by high-altitude edge accounted for more than 50% of the ...

Claims

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Application Information

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IPC IPC(8): E04G21/32E02D17/02E01D21/00
CPCE04G21/32E04G21/3204E02D17/02E01D21/00
Inventor 马晓辉匙文成陈一琼王一凡俞文俊蔡杰殷凯
Owner SHANGHAI NO 4 CONSTR
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