Drilling rig for punching hole in cellar wall of wine cellar pool
A drilling rig for punching a hole in the cellar wall of a wine cellar pool is composed of drill bits, a handle, a drill bit base and reinforcing ribs. The number of the drill bits is four, and all the drill bits are cone-shaped. The front end of the handle is a cone, the main body portion is matche...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | A drilling rig for punching a hole in the cellar wall of a wine cellar pool is composed of drill bits, a handle, a drill bit base and reinforcing ribs. The number of the drill bits is four, and all the drill bits are cone-shaped. The front end of the handle is a cone, the main body portion is matched with a chuck inner hole of a dynamic gun, the drill bit base is a circular truncated cone, a handle connecting hole and four drill bit installing holes are formed in the drill bit base, the drill bit base is sleeved on the handle through the handle connecting hole and is fixedly connected with the handle, the drill bit base is located behind the cone-shaped front end of the handle, and close to the cone, the four drill bits are fixed in the four drill bit installing holes formed in the drill bit base, the cone at the end portion of each drill bit is located outside the corresponding drill bit installing hole, the conical tip of the cone of each drill bit is located behind the conical tip of the cone at the front |
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