Abrégé

The present invention relates to a breaker for cleaning a duct, the breaker comprising: a hammer part (10) received in a housing (1) and resiliently supported by a spring (16) while linearly reciprocating by operations of a cam (12) and a cam roller (14); and a hitting blade (20) having one end protruding to the outside of the housing (1) and hitting an object to be hit by a hitting force of the hammer part (10). Accordingly, the breaker has a simple structure in which the hammer part hits the hitting blade by the operation of the cam and the cam roller and is manufactured to have a small size, thereby ensuring excellent workability in a narrow space and rapidly and simply adjusting the hitting force according to hardness of the object to be hit and the material of the duct.

Classes IPC  ?

• B08B 9/051 - Nettoyage des surfaces intérieuresÉlimination des bouchons utilisant des dispositifs de nettoyage introduits dans et déplacés le long des tubes les dispositifs de nettoyage comportant des moyens autopropulseurs pour se déplacer dans les tubes les dispositifs de nettoyage comportant des moteurs pour actionner les outils de nettoyage
• B25D 11/10 - Moyens d'entraînement de la pièce en mouvement comportant un mécanisme à came
• B25D 9/02 - Outils portatifs à percussion entraînés par la pression d'un fluide, p. ex. ayant plusieurs têtes d'outils à percussion actionnées simultanément du type à piston porte-outils, c.-à-d. dans lesquels l'outil est solidaire d'une pièce en mouvement

Abrégé

The present invention relates to a pipe cleaning robot in which first and second moving cars (11 and 12) having a plurality of wheels (20) operating independently from each other are interconnected by a hinge (13) such that a folding angle is adjusted by a driving means, and which is supported so as to move in the state whereby the wheels (20) of the first and second moving cars (11 and 12) arranged in the vicinity of the hinge (13) are pressed by the inner side surface of a pipe (P) and the wheels (20) arranged at the other ends of the first and second moving cars (11 and 12) press the other inner side surface of the pipe (P). The pipe cleaning robot comprises a cleaning member (30) which is arranged on one side of either the first or second moving car (11 and 12) and which cleans the interior of the pipe (P) by means of a rotating force. The pipe cleaning robot is shaped as a pipe, the inlet of which has a narrow inner diameter so as to allow for easy initial insertion thereof and the size of which flexibly expands or contracts in correspondence to the various diameters of pipes. Further, the pipe cleaning robot is configured such that the wheels of the first and second moving cars tightly contact the inner walls of the pipe facing each other during movement, thus preventing the pipe cleaning robot from being turned over by an impact and vibrations generated during a cleaning process.

Classes IPC  ?

• B08B 9/051 - Nettoyage des surfaces intérieuresÉlimination des bouchons utilisant des dispositifs de nettoyage introduits dans et déplacés le long des tubes les dispositifs de nettoyage comportant des moyens autopropulseurs pour se déplacer dans les tubes les dispositifs de nettoyage comportant des moteurs pour actionner les outils de nettoyage