the connector to open and sealingly close the upper and the lower housings the release preventing member is formed between the connector and the locking unit to prevent release of the locking unit application_number US 87856204 A description in the following description same drawing reference numerals are used for the same elements even in different drawings the matters defined in the description such as a detailed construction and elements only provide assistance in understanding the invention thus it is apparent that the present invention can be carried out without those defined matters also well known functions or constructions are not described in detail additionally while the present invention is described in the example of a turbine brush which has a rotative brush moving in accordance with a turbine assembly by the suction force of the body of the vacuum cleaner the present invention is usable in other devices where applicable such as in a general brush assembly the brush assembly 100 of a vacuum cleaner according to an embodiment of the present invention as illustrated in fig1 includes upper and lower housings 101 and 102 for releasable connection with each other a connector 110 interposed between the upper and lower housings 101 and 102 and a locking unit 120 for securing the upper and lower housings 101 and 102 in a sealingly closed state referring to fig2 the upper housing 101 forms the.