Percussion drill shell structure with waste collecting and stretching functions

• Main Authors: REN FAYONG, LI YINBIAO, CUI SUJIE
• Format: Patent
• Language: Chinese; English
• Published: 12.06.2020
• Subjects: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR; HAND TOOLS; MANIPULATORS; PERCUSSIVE TOOLS; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; TRANSPORTING

The utility model relates to a percussion drill shell structure with waste collection and telescopic functions, which is characterized in that a first sleeve, a second sleeve and a third sleeve of which the diameters are gradually increased are mutually matched and combined to form a shell, the tail part of the third sleeve is butted with a fourth sleeve, and the fourth sleeve is provided with a through hole; a bearing matched with the drill bit is installed on the inner ring of the first sleeve, a dust suction port and a collecting box installation port are formed in the periphery of the fourth sleeve, and the collecting box is fixedly connected with the fourth sleeve through the collecting box installation port; first fixing strips are uniformly distributed on the inner ring of the thirdsleeve, and a first groove is formed in each first fixing strip; second fixing strips are uniformly distributed on the inner ring of the second sleeve, and a second groove is formed in each second fixing strip; third fixing