Novel boring tool
The utility model relates to a novel boring tool. Often the volume is comparatively huge for present widely used shallow bore hole drilling equipment, and relies on large -scale relevant mechanical equipment, receives job site condition influence easily. The utility model discloses a constitution in...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
31.08.2016
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Subjects | |
Online Access | Get full text |
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Summary: | The utility model relates to a novel boring tool. Often the volume is comparatively huge for present widely used shallow bore hole drilling equipment, and relies on large -scale relevant mechanical equipment, receives job site condition influence easily. The utility model discloses a constitution includes: drill bit (4), drive hammer, the drill bit be the light -wall pipe column structure, the drill bit side surface have the rectangle and observe hole (2), the welding of drill bit top reducing have connecting pipe (3), the connecting pipe top screw thread (1) has, the connecting pipe top pass through ferrule (8) and install a set of extension pipe (5), extension pipe for tubulose thin walled structure, extension nose portion, bottom the screw thread has respectively, the drive hammer include metal cake (6), the bottom central authorities welding of metal cake have direction reinforcing bar (7), the direction reinforcing bar insert the extension intraductal. The utility model is used for novel boring tool.
本实用 |
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Bibliography: | Application Number: CN20162375300U |