Hangzhou Bofeng Diamond Tools Co., Ltd. Patent applications |
Patent application number | Title | Published |
20100322725 | Positioning and cooling device for vertical surface drilling - The present invention discloses a positioning and cooling device for vertical surface drilling which comprises a first cup body, a second cup body and a drill bit sleeve. The drill bit sleeve is disposed on the first cup body and the second cup body is received in the first cup body. The first cup body is in shape of a rectangular cylinder with an open end at a first end thereof, and a positioning hole with a size corresponding to that of the drill bit sleeve is disposed at a central position of the first cup body. The second cup body is in shape of a rectangular cylinder with a size slightly smaller than that of the first cup body, and the second cup body has an open end at a first end thereof and a plurality of water injection holes at a second end thereof which is opposite to the open end. To use the present invention, the drill bit sleeve is first inserted into the positioning hole on the first cup body. The first cup body is then affixed onto the vertical wall or work surface which requires drilling by means of a double-sided tape or other adhesives. At the same time, the drill bit sleeve is ensured to be perpendicular to the wall or work surface, and the drill bit sleeve is aligned with the position where the hole is to be drilled. Then, fill the second cup body with water and insert the second cup body to the first cup body. Water then drips into the drill bit sleeve from the second cup body and cools the drill bit instantly. The present invention solves the technical problem of positioning and cooling for vertical surface drilling. It is of simple structure, easy to use and worth promoting. | 12-23-2010 |
20100322724 | Positioning and cooling device for horizontal surface drilling - The present invention relates to a positioning and cooling device for horizontal surface drilling which comprises a base, a positioning hole and a water channel, characterized in that the water channel is disposed on the base, and the positioning hole is disposed at a bottom of the water channel and communicates with the base. When in use, the bottom of the base is adhered with a double-sided type or other adhesives for affixing the base onto the horizontal work surface. At the same time, the positioning hole is ensured to be aligned with the positioning point of the drill hole. Then, fill the water channel with appropriate amount of water. When the drilling apparatus drills a hole via the positioning hole, water in the water channel serves immediate cooling function and thereby effectively protecting the drill bit. The present invention solves the positioning and cooling problems of drilling apparatus and is simple in structure, convenient to operate, and effective in facilitating the positioning and cooling of drilling apparatus, and is therefore worth promoting. | 12-23-2010 |