The present disclosure discloses an assembly and disassembly base. The assembly and disassembly base comprises a fixed plate set, a locking plate, and a fixing screw, the fixed plate set and the locking block are disposed with a plurality of protruding blocks, the locking plate is slidably disposed in the fixed plate set, the protruding blocks are overlapped and staggered, thereby resulting the locking and the disassembly of the locking plate and the fixed plate set to be achieved. The locking plate is connected to the toilet seat by the fixing screw.

A fluid damper hinge using a fluid damper only and a damper hinge using the fluid damper in combination with a torsion damper, used especially in relation to an opening and closing element such as seat lid and seat for western-style toilet, wherein both have a simple structure, do not require time for assembly and can be manufactured at a low cost.

A fluid damper hinge using a fluid damper only and a damper hinge using the fluid damper in combination with a torsion damper, used especially in relation to an opening and closing element such as seat lid and seat for western-style toilet, wherein both have a simple structure, do not require time for assembly and can be manufactured at a low cost.

A fastening assembly is configured to couple a toilet seat hinge to a toilet bowl by a threaded shaft. The fastening assembly includes a fastening nut including a clamping portion having a resilient protrusion configured to allow axial movement of the fastening nut relative to the threaded shaft without rotation therebetween. The resilient protrusion has threads configured to engage the threaded shaft. The fastening nut includes a drive portion in which the clamping portion extends therefrom. The drive portion has a first segment coupled to a second segment by a shear segment. At least the first segment is configured to be engaged by a tool for the tool to rotate the fastening nut relative to the threaded shaft such that the shear segment fractures at a predetermined torque applied to the first segment relative to the second segment.

A fastening assembly is configured to couple a toilet seat hinge to a toilet bowl by a threaded shaft. The fastening assembly includes a fastening nut including a clamping portion having a resilient protrusion configured to allow axial movement of the fastening nut relative to the threaded shaft without rotation therebetween. The resilient protrusion has threads configured to engage the threaded shaft. The fastening nut includes a drive portion in which the clamping portion extends therefrom. The drive portion has a first segment coupled to a second segment by a shear segment. At least the first segment is configured to be engaged by a tool for the tool to rotate the fastening nut relative to the threaded shaft such that the shear segment fractures at a predetermined torque applied to the first segment relative to the second segment.

The disclosure discloses a toilet seat assembly installation structure convenient for disassembly and assembly, which comprises fixing members fixedly installed on a toilet seat; a hinge base including hinge portions and installation portions, the hinge portions hinging with a cover plate, the installation portions engaging with the fixing members; and snap-in connection members configured to detachably and position-limitedly installed on the installation portions along a vertical direction so that the snap-in connection members are fixedly engaged with the fixing members, or to detachably and position-limitedly installed on the fixing members along the vertical direction so that the snap-in connection members are fixedly engaged with the installation portions. The toilet seat assembly installation structure is easy to operate, can be dissembled and assembled by inserting/removing the hinge base into/from the fixing members, and is stable and reliable.

The disclosure discloses a toilet seat assembly installation structure convenient for disassembly and assembly, which comprises fixing members fixedly installed on a toilet seat; a hinge base including hinge portions and installation portions, the hinge portions hinging with a cover plate, the installation portions engaging with the fixing members; and snap-in connection members configured to detachably and position-limitedly installed on the installation portions along a vertical direction so that the snap-in connection members are fixedly engaged with the fixing members, or to detachably and position-limitedly installed on the fixing members along the vertical direction so that the snap-in connection members are fixedly engaged with the installation portions. The toilet seat assembly installation structure is easy to operate, can be dissembled and assembled by inserting/removing the hinge base into/from the fixing members, and is stable and reliable.

A method and apparatus for mounting a toilet seat hinge to a toilet pan uses an adhesive. The adhesivised surface of the hinge is held clear of the pan until correct positioning is established. Thereafter the adhesivised surface is displaced directly into contact with the pan.

A method and apparatus for mounting a toilet seat hinge to a toilet pan uses an adhesive. The adhesivised surface of the hinge is held clear of the pan until correct positioning is established. Thereafter the adhesivised surface is displaced directly into contact with the pan.

The fluid damper device (10) has the rotor (30) which is inserted to the bottomed cylindrical case (20) and the cover (60) which is fixed to the opening portion (29) of the case (20). The welding protrusions (80) which are to be welded to the cover (60) are formed on the inside circumferential surface of the case (20) and spaced out in the circumferential direction. On the other side (L2) in the axial (L) direction of the welding range (X), within which the welding protrusions (80) and the cover are welded together, the first outflow prevention portion (91L, 91R) is formed. On the other side (L2) of the first outflow prevention portion (91L, 91R) in the axial (L) direction, the arc-shaped step surface (76) which functions as the outflow regulation portion (95) is provided to regulate the resin protruded and prevented it from reaching the position of the R-ring (49).