Anti-theft controllable well sealing device
The utility model relates to an anti-theft controllable well sealing device. A lower conical body is also installed between an upper conical body and a rubber sleeve seat; cone tips of the upper conical body and the lower conical body are opposite and the opposite tip parts are provided with clampin...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to an anti-theft controllable well sealing device. A lower conical body is also installed between an upper conical body and a rubber sleeve seat; cone tips of the upper conical body and the lower conical body are opposite and the opposite tip parts are provided with clamping teeth which are in an upper row and a lower row and are opposite; cylindrical tooth clamping hooks are sleeved on the outer sides of the upper conical body and the lower conical body; openings are formed in upper surfaces of the tooth clamping hooks, and the clamping teeth extend out of the openings in the tooth clamping hooks; two ends of the tooth clamping hooks are provided with spacing bolts; the upper conical body and the lower conical body are respectively provided with bulges clamped in the spacing bolts; springs I are arranged between the connecting parts of the end parts of the two rows of clamping teeth and the inner walls of the tooth clamping hooks; the upper end and the lower end of a connecting pipe |
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