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2 results about "Occupational disease" patented technology
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An occupational disease is any chronic ailment that occurs as a result of work or occupational activity. It is an aspect of occupational safety and health. An occupational disease is typically identified when it is shown that it is more prevalent in a given body of workers than in the general population, or in other worker populations. The first such disease to be recognised, squamous-cell carcinoma of the scrotum, was identified in chimney sweep boys by Sir Percival Pott in 1775. Occupational hazards that are of a traumatic nature (such as falls by roofers) are not considered to be occupational diseases.
A chiseling device suitable for dense steel bar narrow clearance
The present application provides a chiseling device suitable for dense steel bars and narrow clearance, which is detachably fixed on the steel bars of the extension of the existing structure to realize the chiseling work on the chiseling surface of the existing structure; the chiseling device comprises a main frame, two symmetrical clamping mechanisms arranged on the main frame, and a chiseling mechanism between the two clamping mechanisms, wherein the two clamping mechanisms are clamped on the corresponding two steel bars respectively, and the chiseling mechanism is used for performing specific chiseling work. By configuring double clamping mechanisms on the main frame, the device can be directly and detachably anchored on the exposed steel bars of the existing structure, so that the device can flexibly work in the dense steel bar gap that cannot be reached by conventional equipment, effectively eliminating the construction blind area under complex working conditions; the installation stability and stress balance in the narrow space are ensured, the chiseling reaction force is directly borne by the frame and the steel bars, the direct harm of vibration to the human body is avoided, and the risk of occupational disease is significantly reduced.
Owner:THE FIRST CONSTRUCTION COMPANY OF CCCC SECOND HARBOR ENGINEERING CO LTD +2