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Hanging ladder

A technology for hanging ladders and pedals, applied in ladders, buildings, building structures, etc., can solve problems such as easy damage of hanging ladders, and achieve the effect of preventing damage, preventing swinging in the front and rear directions, and being convenient to use.

Inactive Publication Date: 2013-01-30
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of hanging ladder

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] Such as Figure 1 to Figure 3 As shown, in the present embodiment, the suspended ladder has two steps of pedals, wherein the upper pedal is a fixed pedal 4, and the lower pedal is a swing pedal 9, and a front and rear direction is respectively welded on the left and right ends of the upper surface of the swing pedal 9. The oblong pipe 8 of each oblong pipe 8 is respectively provided with a connecting rod 11 at the two ends of each oblong pipe 8, and the lower end of the connecting rod 11 is provided with a round hole, and the lower hinge pin 10 passes through the round hole and the oblong pipe 8 at the lower end of the connecting rod 11, Realize that the connecting rod 11 is hingedly connected with the swing pedal 9 . The upper end of the connecting rod is also provided with a round hole, and the two ends of the lower surface of the fixed pedal 4 are provided with two short round tubes 6 arranged at intervals in the front and rear directions, and the upper hinge pin 7 p...

Embodiment 2

[0020] The hanging ladder in this embodiment is a three-stage pedal hanging ladder, such as Figure 4 As shown, in this embodiment, the suspended ladder has three steps, wherein the uppermost step is a fixed step 4 for fixed connection with corresponding mechanical equipment. The pedal of the lowest level is a swing pedal 9, and the pedal positioned above the swing pedal 9 is a second swing pedal 12, and the two ends of the connecting rod positioned between the swing pedal 9 and the second swing plate are all connected to the swing pedal 9 and the second swing pedal. The plate 12 is hinged, and the two ends of the connecting rod between the fixed pedal 4 and the second swinging board 12 are all hinged with the fixed pedal 4 and the second swinging board 12, and a return spring is arranged on the upper end of the connecting rod, so that the hanging ladder is in the absence of Return to its original position under the action of external force. The working principle of the hangi...

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Abstract

The invention relates to a hanging ladder which is provided by aiming at the defect that a hanging ladder on the traditional mobile mechanical equipment is easily collided by the ground or materials and damaged. The hanging ladder comprises at least two pedals which are arranged up and down, wherein each pedal below the upper most pedal is hung and connected with a next stage of pedal through connecting parts at both ends of the pedal, and the pedals comprise at least one swinging pedal; the connecting parts for hanging the pedals are swinging connecting parts, and a parallelogram structure is formed by the swinging pedal, an adjacent pedal above the swinging pedal and left and right swinging connecting parts connected with the swinging pedal and the adjacent pedal above the swinging pedal; and both ends of the swinging connecting parts are respectively hinged with an upper pedal and a lower pedal, and hinge pivot shafts are horizontally arranged and vertical to the pedal length direction. According to the hanging ladder, when the lower end of the hanging ladder is collided by the ground or materials in an advancing process of equipment, the hanging ladder can be swung towards a direction opposite to the advancing direction of the mechanical equipment so as to avoid damaging the hanging ladder, and after the collision is relieved, the hanging ladder can be automatically reset to a normal state.

Description

technical field [0001] The invention relates to a staircase, in particular to a hanging ladder for going up and down engineering machinery. Background technique [0002] Construction machinery such as loaders are large-scale equipment, and the maintenance platform at the rear is relatively high. Based on safety requirements, hanging ladders need to be installed on the sides of the maintenance platform to enter the maintenance platform up and down through the hanging ladder. Existing hanging ladders are usually formed by steel plate welding or bolt fastening, and are rigidly installed on the vehicle frame or on the maintenance platform. Based on safety considerations, the distance between the bottom step of the suspended ladder and the ground is usually not large. When construction machinery such as loaders equipped with such suspended ladders work in rugged and different work areas or stack materials, the lower end of the suspended ladder It is easy to collide with the grou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06C5/44
Inventor 肖青松蒋绍军李贝杜杏
Owner GUANGXI LIUGONG MASCH CO LTD
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