Fixed pulley anti-touch device
The utility model relates to a fixed pulley anti-touch device carrying out a sand-filling and a plugging, which comprises a headframe, a movable pulley, a fixed pulley, a wire rope and an anti-touch mechanism. A U'-shaped steel ring is welded in the left frame of the upper part of the headframe...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a fixed pulley anti-touch device carrying out a sand-filling and a plugging, which comprises a headframe, a movable pulley, a fixed pulley, a wire rope and an anti-touch mechanism. A U'-shaped steel ring is welded in the left frame of the upper part of the headframe. A fixed pulley is arranged on the right frame. An operating steel sheath of the weighted lever is welded at the outboard of the middle and lower part of the right frame. A fixed sheath of the weighted lever is welded at the outboard of the lower part of the right frame. The weighted lever passes through the running sheath and is fixed in the fixed sheath of the weighed lever. The weighted lever is columnar shape. The diameter of the upper part is smaller than the diameter of the lower part. A conical surface is arranged at the changing point of the big diameter and the small diameter. A hydraulic air governor valve of two bits and three passing is arranged on the window lintel of the headframe at the conical surface point of the changing point of the big and small diameter. A valve handle contacts the conical surface of the changing point. The upper end of the weighted lever is provided with a round hole used to thread the wire rope. One end of the steel wire rope passed through the round hole and is clamped by the wire rope clamp. The other end passes through the U-shaped steel ring through the fixed pulley and is clamped on the U-shaped steel ring by wire rope clamp to make the wire rope spanned the upper part of the movable pulley horizontally. When the movable pulley touches the wire rope, the device can alarm and the movable pulley runs downward or ceases. |
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