Abstract: An Android penetration method and device for implementing silent installation based on accessibility services. The method includes: acquiring a second target application by adding a load program to a first target application and adding penetration permissions using an Android decompilation technology; and implementing silent installation of the second target application using an accessibility service technology.

Abstract: Provided are a water drainage valve for a double drum washing machine and a double drum washing machine using the water drainage valve. The water drainage valve includes a first water drainage valve body connected to a first outer drum and a second water drainage valve body connected to a second outer drum, and valve plugs disposed within water drainage valve bodies. The valve plugs include a first valve plug inside the first water drainage valve body and a second valve plug inside the second water drainage valve body, and a drive assembly connected to the first valve plug and the second valve plug. The drive assembly is configured to drive the first valve plug to move to control the first water drainage valve body to open or close and drive the second valve plug to move to control the second water drainage valve body to open or close. And the first water drainage valve body is in a closed state when the second water drainage valve body is in an open state.

Abstract: A double-drum washing machine comprises a first outer drum and a second outer drum which are respectively provided with a drum inside, wherein the second outer drum is provided with a connecting part which protrudes out of a surface of the second outer drum and which is molded integrally, the connecting part extends towards the first outer drum along a radial direction from the surface of the second outer drum, and an end part of the connecting part is in detachable connection with the first outer drum. Double drums of the double-drum washing machine are connected to be almost integrated, therefore, auxiliary fixed parts are reduced, and the connection between double drums is more stable, reliable and more compact, the vibration of the double-drum washing machine is effectively reduced during operation, the noise pollution of the double-drum washing machine is reduced, and additional counterweight is not required.

Abstract: Provided are a water drainage valve for a double drum washing machine and a double drum washing machine using the water drainage valve. The water drainage valve includes a first water drainage valve body connected to a first outer drum and a second water drainage valve body connected to a second outer drum, and valve plugs disposed within water drainage valve bodies. The valve plugs include a first valve plug inside the first water drainage valve body and a second valve plug inside the second water drainage valve body, and a drive assembly connected to the first valve plug and the second valve plug. The drive assembly is configured to drive the first valve plug to move to control the first water drainage valve body to open or close and drive the second valve plug to move to control the second water drainage valve body to open or close. And the first water drainage valve body is in a closed state when the second water drainage valve body is in an open state.

Abstract: A double-drum washing machine comprises a first outer drum and a second outer drum which are respectively provided with a drum inside, wherein the second outer drum is provided with a connecting part which protrudes out of a surface of the second outer drum and which is molded integrally, the connecting part extends towards the first outer drum along a radial direction from the surface of the second outer drum, and an end part of the connecting part is in detachable connection with the first outer drum. Double drums of the double-drum washing machine are connected to be almost integrated, therefore, auxiliary fixed parts are reduced, and the connection between double drums is more stable, reliable and more compact, the vibration of the double-drum washing machine is effectively reduced during operation, the noise pollution of the double-drum washing machine is reduced, and additional counterweight is not required.