DRILLING DEVICE, CONNECTOR AND DRILLING HEAD

• Main Author: AKIYAMA MASANORI
• Format: Patent
• Language: English; Japanese
• Published: 15.04.2021
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

To provide a drilling head for various types of rotary rods in a drilling device.SOLUTION: A drilling device attaches a drilling head 6 to a lower end of a rotary rod 4 that is rotationally driven to drill. The rotary rod has a male connecting portion at an upper end and a female connecting portion at a lower end. The drilling head has a female connecting portion 26 formed at an upper end thereof. The rotary rod and the drilling head are connected by a connecting tool 8. The connecting tool includes a male connecting portion 16 connected to the female connecting portion at the lower end of the rotary rod and a male connecting portion 17 connected to the female connecting portion at the upper end of the excavation head.SELECTED DRAWING: Figure 2 【課題】掘削装置において、多種の形態の回転ロッドに対応する掘削ヘッドを提供する。【解決手段】掘削装置は、回転駆動される回転ロッド４の下端に掘削ヘッド６を取り付けて掘削する。この回転ロッドは、上端部に雄型の連結部が、また，下端部に雌型の連結部が形成されており、前記掘削ヘッドは、上端部に雌型の連結部２６が形成されており、前記回転ロッドと前記掘削ヘッドとが連結具８で接続されており、この連結具が、前記回転ロッドの下端部の雌型の連結部に接続される雄型の連結部１６と、前記掘削ヘッドの上端部の雌型の連結部に接続される雄型の連結部１７とを具備している。【選択図】図２