Mounting apparatus for side panel of computer

An enclosure comprising:

• a chassis defines an opening, the chassis comprising a front panel and a rear panel, a hem located on the front panel, a latching portion located on the rear panel;
• a side panel for covering the opening of the chassis, a clamping piece located in the side panel, the clamping piece engaged with the hem, an installation hole defined in the side panel;
• and
• a knob structure installed on the side panel, the knob structure comprising a sliding member slidably engaged in the installation hole, a mounting member, a resilient member and a positioning member attached to the side panel the mounting member defining at least one sliding hole, the sliding member comprising a hook and at least one pillar, the at least one pillar being engaged in the at least one sliding hole, to slidably secure the sliding member to the mounting member, a first end of the resilient member engaged with the sliding member, a second end of the resilient member engaged with the positioning member;
• the hook is engaged with the latching portion, and the resilient member is elastically deformable to the hook disengaged from the latching portion;
• the sliding member further comprises a stopping portion, the positioning member comprises a limiting portion;
• the first end of the resilient member is engaged with the stopping portion, and the second end of the resilient member is engaged with the limiting portion;
• the sliding member comprises two first sidewalls, the least one pillar extends from one of the two first sidewalls;
• the mounting member attached to the side panel and comprises two second sidewalls parallel to each other, the least one sliding hole is defined in one of the two second sidewalls;
• two securing pieces extend from the two second sidewall, each of the two securing pieces defines at least one securing hole;
• at least two engaging portions are located on the side panel, and each of the at least two engaging portions is engaged in the at least one securing hole to secure the mounting member to the side panel;
• the mounting member comprises a second rear wall, the second rear wall connected to the two second sidewalls, a gap is defined in the second rear wall, the first end of the resilient member extends through the gap to engage with the stopping portion;
• and
• a connecting piece extends from one edge of the gap, and is substantially perpendicular to the second rear wall, the positioning member comprises a positioning board, a protrusion extends from the positioning board, and the connecting piece is installed on the protrusion.