Pushing force converting mechanism and concealed water tank

A pushing force converting mechanism, comprising at least one pushing force converting device, wherein the at least one pushing force converting device comprises:

• a cylinder barrel, comprising:
• an air cavity;
• a mounting cavity;
• and
• an air cavity vent in communication with the air cavity;
• a piston configured to slide back and forth in the cylinder barrel and slidably disposed in the mounting cavity;
• a transmission bar connected with the piston and configured to drive the piston to move toward the air cavity;
• a restoring member disposed in the cylinder barrel and configured to drive the piston or the transmission bar to be restored to a respective initial position;
• and
• a sealing ring disposed on the piston and configured to seal the air cavity,
• wherein the sealing ring comprises a sealing ring vent hole, and
• wherein when the piston or the transmission bar is restored to the respective initial position, air entering the air cavity via an air pipe is discharged via the sealing ring vent hole.

A water tank, comprising:

• a body detachably connected with a pushing force converting mechanism;
• and
• a pneumatic discharge valve comprising an air bag,
• wherein the pushing force converting mechanism comprises:
• a cylinder barrel, comprising:
• an air cavity;
• a mounting cavity;
• and
• an air cavity vent in communication with the air bag through an air pipe and in communication with the air cavity;
• a piston configured to slide back and forth in the cylinder barrel and slidably disposed in the mounting cavity;
• a transmission bar connected with the piston and configured to drive the piston to move toward the air cavity;
• a restoring member disposed in the cylinder barrel and configured to drive the piston or the transmission bar to be restored to a respective initial position;
• and
• a sealing ring disposed on the piston and configured to seal the air cavity,
• wherein the sealing ring comprises a sealing ring vent hole;
• and
• wherein when the piston or the transmission bar is restored to the respective initial position, air entering the air cavity via the air pipe is discharged via the sealing ring vent hole.