Drum washing machine

Abstract

A drum washing machine includes a washing machine housing. A washing drum is disposed in the washing machine housing and includes a front washing drum and a rear washing drum, and the front washing drum is sealedly connected to the rear washing drum and is operative to rotate relative to the rear washing drum. The front washing drum is operative to rotate along with a motor, and the rear washing drum is at rest when the front washing drum is rotating along with the motor.

1 . A drum washing machine, comprising a washing machine housing, wherein a washing drum is disposed in the washing machine housing and comprises a front washing drum and a rear washing drum, wherein the front washing drum is sealedly connected to the rear washing drum and is operative to rotate relative to the rear washing drum, the front washing drum is operative to rotate along with a motor, wherein the rear washing drum is at rest in response to the front washing drum rotating along with the motor. 
     
     
         2 . The drum washing machine of  claim 1 , wherein the rear washing drum has a smaller length than the front washing drum. 
     
     
         3 . The drum washing machine of  claim 1 , wherein the washing machine housing is provided with a loading port, and a door and window is disposed at the loading port, a sealing door is further arranged on a side of the front washing drum adjacent to the door and window and is configured to seal the washing drum, wherein a sealing groove is defined in a side wall of the front washing drum contacting the sealing door or in a side wall of the sealing door contacting the front washing drum, and a first sealing ring is disposed in the sealing groove. 
     
     
         4 . The drum washing machine of  claim 3 , wherein the sealing door is connected to the front washing drum. 
     
     
         5 . The drum washing machine of  claim 1 , wherein a central axis of the washing drum is inclined relative to a horizontal plane, the central axis forming an angle of α with the horizontal plane, where 0≤α<90°. 
     
     
         6 . The drum washing machine of  claim 1 , wherein the front washing drum is a drum of a non-porous structure. 
     
     
         7 . The drum washing machine of  claim 3 , wherein the front washing drum is connected to the rear washing drum via a rotary bearing, and a second sealing ring is disposed between the front washing drum and the rear washing drum. 
     
     
         8 . The drum washing machine of  claim 7 , wherein a limiting ring having an F-shaped cross-section is disposed at a joint of the front washing drum and the rear washing drum;
 wherein the limiting ring comprises a first vertical limiting ring body, a first transverse limiting ring body disposed on top of the first vertical limiting ring body, and a second transverse limiting ring body parallel to the first transverse limiting ring body;   wherein the second sealing ring is disposed between the first transverse limiting ring body and the second transverse limiting ring body, the rotary bearing is disposed in a space formed by the first vertical limiting ring body, the second transverse limiting ring body, and an outer wall of the rear washing drum.   
     
     
         9 . The drum washing machine of  claim 8 , wherein the second sealing ring is a lip-shaped sealing ring. 
     
     
         10 . The drum washing machine of  claim 1 , wherein the rear washing drum is provided with a water inlet hole and a water outlet hole, wherein the water outlet hole is communicated with a drain valve via a drain connecting pipe. 
     
     
         11 . The drum washing machine of  claim 10 , wherein a water inlet valve is disposed on the washing machine housing and is connected to a detergent box via a water inlet pipeline, and the detergent box is connected to the water inlet hole via a water injection pipe. 
     
     
         12 . The drum washing machine of  claim 2 , wherein the washing machine housing is provided with a loading port, and a door and window is disposed at the loading port, a sealing door is further arranged on a side of the front washing drum adjacent to the door and window and is configured to seal the washing drum, wherein a sealing groove is defined in a side wall of the front washing drum contacting the sealing door or in a side wall of the sealing door contacting the front washing drum, and a first sealing ring is disposed in the sealing groove. 
     
     
         13 . The drum washing machine of  claim 12 , wherein the sealing door is connected to the front washing drum. 
     
     
         14 . The drum washing machine of  claim 12 , wherein the front washing drum is connected to the rear washing drum via a rotary bearing, and a second sealing ring is disposed between the front washing drum and the rear washing drum. 
     
     
         15 . The drum washing machine of  claim 14 , wherein a limiting ring having an F-shaped cross-section is disposed at a joint of the front washing drum and the rear washing drum;
 wherein the limiting ring comprises a first vertical limiting ring body, a first transverse limiting ring body disposed on top of the first vertical limiting ring body, and a second transverse limiting ring body parallel to the first transverse limiting ring body;   wherein the second sealing ring is disposed between the first transverse limiting ring body and the second transverse limiting ring body, the rotary bearing is disposed in a space formed by the first vertical limiting ring body, the second transverse limiting ring body, and an outer wall of the rear washing drum.   
     
     
         16 . The drum washing machine of  claim 15 , wherein the second sealing ring is a lip-shaped sealing ring.