Backstop for free-suspension system in deep well
The utility model relates to a backstop of a free-hanging system arranged in a deep well. The utility model is characterized in that a connecting frame is connected on the free-hanging system arranged in the deep well, a lengthening frame and an adverse pulley are connected to the connecting frame,...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
20.11.2002
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | The utility model relates to a backstop of a free-hanging system arranged in a deep well. The utility model is characterized in that a connecting frame is connected on the free-hanging system arranged in the deep well, a lengthening frame and an adverse pulley are connected to the connecting frame, and a retaining attraction-magnet is connected on the lengthening frame. The utility model is capable of preventing the hanging system from producing torque, the structure of the utility model is simple and the usage is convenient. |
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Bibliography: | Application Number: CN20012065949U |