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Anti-extrusion mechanism and operation platform thereof

An aerial work platform, anti-extrusion technology, applied in the direction of hoisting devices, lifting equipment safety devices, etc., can solve the problems of limited human body position, affecting the effectiveness of the alarm, not small safety, etc., to achieve stability and Good operability, improved safety, and easy adaptation

Pending Publication Date: 2019-12-20
ZHEJIANG DINGLI MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Another example is the work platform for preventing continuous involuntary operation disclosed by the Chinese patent whose publication number is CN107257773A, comprising: a floor structure, which has a width dimension and a depth dimension; and a safety guardrail, which is connected with the floor structure, and the control panel area can be The safety rail cooperates with and includes a sensor support bar having a top rail extending along the width dimension and side rails extending substantially perpendicularly from the top rail, each side rail comprising : an upper portion extending inwardly from the top rail along the depth dimension to a bend, and a lower portion extending outwardly from the bend along the depth dimension to the safety rail, configured to be The platform switch, which trips when a predetermined force is applied, is attached to the sensor support rod through a switch rod, which is held by a shear element, and the whole structure is a fixed structure, which is relatively rigid, especially when there is a large extrusion force In some cases, although the alarm can be issued, the impact on people is still relatively large, and the position of the human body is relatively limited, and the effect of avoiding danger is not good enough. Especially for the pressure switch used internally, a more accurate position is required. Press to make the alarm more effective. If you press the alarm at a position far away from the pressure switch, it may affect the effectiveness of the alarm or require a very large force. There is still a certain chance that the alarm will not be successful. safety hazard

Method used

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  • Anti-extrusion mechanism and operation platform thereof
  • Anti-extrusion mechanism and operation platform thereof

Examples

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Effect test

Embodiment 1

[0033] Example 1, such as Figure 1-10, an anti-extrusion mechanism, including an operating platform protective frame 1 for being installed on the protective railing 8 of the aerial work platform, the operating platform protective frame 1 can adopt an existing conventional protective frame, and within the protective area of ​​the protective frame An operation platform a1 is provided, and the protection frame 1 of the operation platform is provided with a safety-avoiding buffer protection rod 2 for the human body to lean against and move forward. The danger-avoidance buffer protection rod 2 preferably extends in the left and right directions. The direction can be understood as the orientation observed by the operator when he is located behind the safety buffer protection rod 2 during normal operation, so the operating platform a1 is in front of the safety protection buffer protection rod 2, and the operator is on the safety protection buffer rod 2. In the rear of the protection...

Embodiment 2

[0050] Embodiment 2, with reference to the accompanying drawings in Embodiment 1, on the basis of Embodiment 1, a better design is made for this part of the position change detection of the safety-avoiding buffer protection bar 2, as follows:

[0051] In the area between the front shield support plate 3 and the safety buffer protection rod 2, a set of position change detection devices are respectively provided at the positions near the left and right ends of the safety protection buffer protection rod 2. If there are position change detection devices on the left and right sides, the reliability of the alarm can be greatly improved.

[0052]In addition, the position change detection device includes a metal detection body 21a installed on the safety buffer protection bar 2 and a proximity switch 22a arranged in front of the metal detection body 21a. Like this, metal detection body 21a moves forward along with the safety-avoiding buffer protection bar 2, approaches the proximity ...

Embodiment 3

[0057] Embodiment 3, with reference to the drawings in Embodiment 1, the difference between this embodiment and the first two embodiments is that a flexible protective sleeve 5 is wrapped around the periphery of the front shield support plate 3 and the safety buffer protection bar 2 . The length of the flexible protective cover 5 should be the same as that of the front block support plate 3 and the safety buffer protection rod 2, and the flexible protective cover 5 is a casing structure that runs through the left and right directions, and can be completely covered on the front block support plate 3 and the described safety buffer. When installing the periphery of the safety-avoiding buffer protection rod 2, the recommended installation method is as follows: the front shield support plate 3 and the safety-avoiding buffer protection rod 2 and the structure between the two can be installed first, and then the flexible protection Cover 5 sets, at this time, for example, there is t...

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Abstract

The invention relates to the technical field of anti-extrusion systems, in particular to an anti-extrusion mechanism and an operation platform thereof. The anti-extrusion mechanism comprise an operation platform protection frame which is arranged on a protection fence of an aerial operation platform, wherein a danger-avoiding buffering protection rod which can be leaned by a human body and can move forwards is arranged on the operation platform protection frame; a front baffle supporting plate fixed to the operation platform protection frame and used for limiting the forward position of the danger-avoiding buffering protection rod is arranged on the front side of the danger-avoiding buffering protection rod; and a position change detection device used for detecting position change information of the danger-avoiding buffering protection rod so as to trigger an alarm system to alarm is arranged in the area between the front baffle supporting plate and the danger-avoiding buffering protection rod, and the extrusion prevention danger-avoiding effect is better.

Description

technical field [0001] The invention relates to the technical field of an anti-extrusion system, in particular to an anti-extrusion mechanism and a working platform thereof. Background technique [0002] Aerial work platforms are used more and more frequently in today's society, and its safety has attracted more attention. In particular, when obstacles occur above or behind the platform, it is very likely that the operator will not find it. When continuing to lift, the staff may be squeezed by obstacles, and it is more likely that the machine will continue to lift because the operator cannot release the operating handle in time, which will eventually cause more serious accidents. Anti-extrusion safety device. [0003] For example, the Chinese patent with the publication number CN208249834U discloses an anti-extrusion system for a work platform and an aerial work platform. The anti-extrusion system for the work platform is arranged on the work platform. And two ends are con...

Claims

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Application Information

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IPC IPC(8): B66F17/00B66F11/00
CPCB66F17/006B66F11/00
Inventor 许树根
Owner ZHEJIANG DINGLI MACHINERY CO LTD