Cleaning device, floor brush assembly and installation assembly of rolling brush

A cleaning device, comprising a device body and a floor brush assembly connected with the device body;

• the floor brush assembly comprises:
• a base;
• and
• a rolling brush assembly,
• wherein the rolling brush assembly comprises a rolling brush body and a support portion provided on a side of the rolling brush body, and the support portion is connected with the base through a connection assembly;
• wherein the connection assembly comprises a connection body, one end of the connection body is connected with the base, and the other end of the connection body is connected with the support portion through an installation assembly, and the support portion is rotatably provided relative to the installation assembly;
• wherein the installation assembly comprises a control rod, and the support portion is configured to be separated from the installation assembly when the control rod moves along its axial direction towards the support portion;
• wherein the installation assembly further comprises a fixing element;
• and
• wherein:
• the support portion is sleeved on an outer side of the control rod, the fixing element is provided between the support portion and the control rod, and when the control rod displaces towards the support portion, the fixing element is disengaged from the support portion:
• or
• the support portion is connected with the control rod, the fixing element is connected with the support portion, and when the control rod displaces towards the support portion, an end of the control rod connected with the support portion contracts inward and deforms, so as to realize its disengagement from the support portion.