Negative-pressure locking device
The invention discloses a negative-pressure locking device which comprises a sleeve. A connecting hole is formed in one end of the sleeve, a negative-pressure sucking hole is formed in the other end of the sleeve, a hexagonal countersink hole is formed in the outer end of the connecting hole, a plur...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a negative-pressure locking device which comprises a sleeve. A connecting hole is formed in one end of the sleeve, a negative-pressure sucking hole is formed in the other end of the sleeve, a hexagonal countersink hole is formed in the outer end of the connecting hole, a plurality of negative-pressure holes take the connecting hole as a center and are uniformly distributedin the hexagonal countersink hole, the depth of the negative-pressure holes is larger than that of the connecting hole, the negative-pressure sucking hole is communicated with the negative-pressure holes and connected with a suction device through the negative-pressure hole in one end of the sleeve, so that negative pressure is formed in the negative-pressure sucking hole, nuts in the negative-pressure holes in the other end of the sleeve are fixedly sucked, falling off of the nuts is prevented, high-speed movement in narrow space is facilitated, and the locking device is novel in integrated structure and high in appl |
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