The present disclosure discloses a hose telescopic device with a locking structure, including: a hose, a receiving assembly and a locking structure, wherein one end of the hose is received in the receiving assembly, and the other end of the hose passes through the receiving assembly and the locking structure successively, and the locking structure includes a locking seat, the locking seat being provided with several locking pawls having elasticity, the locking pawls being used for locking the hose, and the locking seat being sheathed with a locking piece used for tightening or loosening the locking pawls. The locking seat is sheathed with a locking piece for tightening or loosening the locking pawls, and the locking pawls lock the hose, to provide a hose telescopic device with a locking structure, which is convenient for locking the hose after drawing, and expands the scope of application for drawing hose.

A drain auger includes a drum, a motor, and a cable. The drum forms an accommodation space. The motor drives the drum to rotate. The cable is at least partially stored in the accommodation space. The total length of the extended cable has a cable length L, the drum has an inner bottom surface forming the accommodation space, the diameter of the inner bottom surface is the first diameter D, and, when the cable length L and the first diameter D are both measured in centimeters, the ratio L/D.sup.2 of the cable length L to the square of the first diameter D is greater than or equal to 3.5.

The present disclosure discloses a hose telescopic device with a locking structure, including: a hose, a receiving assembly and a locking structure, wherein one end of the hose is received in the receiving assembly, and the other end of the hose passes through the receiving assembly and the locking structure successively, and the locking structure includes a locking seat, the locking seat being provided with several locking pawls having elasticity, the locking pawls being used for locking the hose, and the locking seat being sheathed with a locking piece used for tightening or loosening the locking pawls. The locking seat is sheathed with a locking piece for tightening or loosening the locking pawls, and the locking pawls lock the hose, to provide a hose telescopic device with a locking structure, which is convenient for locking the hose after drawing, and expands the scope of application for drawing hose.

A drain auger includes a drum, a motor, and a cable. The drum forms an accommodation space. The motor drives the drum to rotate. The cable is at least partially stored in the accommodation space. The total length of the extended cable has a cable length L, the drum has an inner bottom surface forming the accommodation space, the diameter of the inner bottom surface is the first diameter D, and, when the cable length L and the first diameter D are both measured in centimeters, the ratio L/D.sup.2 of the cable length L to the square of the first diameter D is greater than or equal to 3.5.