Patent attributes
A holder comprises a housing, a first clamping arm, a second clamping arm, a first elastic member and a second elastic member. The bottom of the housing is provided with a supporting arm. The first clamping arm is movably mounted in the housing and extends from one side of the housing to form a first clamping part and extends from the other side of the housing to form a first pressing part. The second clamping arm is arranged similarly, to form a second clamping part and a second pressing part; and the second clamping part is opposite to the first clamping part. The first elastic member is mounted in the housing to exert an elastic force towards the second clamping arm on the first clamping arm. The second elastic member is mounted in the housing to exert an elastic force towards the first clamping arm on the second clamping arm.