A collapsible electronic equipment, comprising: a first part ; a shaft fixedly disposed on the first part ; a second part , disposed on the shaft , and pivotable relative to the first part via the shaft ; a retaining element being a gear with a plurality of teeth portions fixedly disposed on the shaft ; and a blocking mechanism , the blocking mechanism comprising: a blocking element movably disposed on the second part and configured to engage with the teeth of the retaining element to stop the retaining element from rotating, such that a relative position between the first part and the second part is fixed; and a driving element configured to drive the blocking element to abut itself against the retaining element ; characterized in that the blocking element is a gear rack ; the driving element comprises a motor , and a gear element disposed on the motor and engaged with the blocking element for moving the blocking element , wherein the driving element is further configured, in response to receiving a driving signal, to drive the blocking element to separate from the retaining element , such that the first part is rotatable relative to the second part , and the relative position between the first part and the second part is changeable. a first part ; a shaft fixedly disposed on the first part ; a second part , disposed on the shaft , and pivotable relative to the first part via the shaft ; a retaining element being a gear with a plurality of teeth portions fixedly disposed on the shaft ; and a blocking mechanism , the blocking mechanism comprising: a blocking element movably disposed on the second part and configured to engage with the teeth of the retaining element to stop the retaining element from rotating, such that a relative position between the first part and the second part is fixed; and a driving element configured to drive the blocking element to abut itself against the retaining element ; characterized in that the blocking element is a gear rack ; the driving element comprises a motor , and a gear element disposed on the motor and engaged with the blocking element for moving the blocking element , wherein the driving element is further configured, in response to receiving a driving signal, to drive the blocking element to separate from the retaining element , such that the first part is rotatable relative to the second part , and the relative position between the first part and the second part is changeable. a blocking element movably disposed on the second part and configured to engage with the teeth of the retaining element to stop the retaining element from rotating, such that a relative position between the first part and the second part is fixed; and a driving element configured to drive the blocking element to abut itself against the retaining element ; characterized in that the blocking element is a gear rack ; the driving element comprises a motor , and a gear element disposed on the motor and engaged with the blocking element for moving the blocking element , wherein the driving element is further configured, in response to receiving a driving signal, to drive the blocking element to separate from the retaining element , such that the first part is rotatable relative to the second part , and the relative position between the first part and the second part is changeable. <EOS>