The invention relates to the technical field of
cell storage and particularly relates to a portable
stem cell refrigeration tank which comprises a tank body, a
handle, a sealing mechanism, a control mechanism, a cover body, an opening mechanism, a
frozen storage mechanism and an ejecting mechanism. By adopting the tank body structure, the tank body is provided with the
handle so as to be convenient to carry; the tank body is provided with the sealing mechanism, is opened and closed at will through the control mechanism and is convenient to use; the cover body and the
frozen storage mechanism are clamped and buckled in a groove in the tank body, the cover body can be in adsorption connection with the tank body through a second
electromagnet after being inserted, and the ejecting mechanism is utilized to eject out the whole cover body and a
test tube after pressing a second button to close the second
electromagnet when the cover body is taken for use, so that the cover body is more convenient and rapider to put in, fetch and use; the
test tube is in threaded connection with the cover body, and a sealing
gasket is arranged between the
test tube and the cover body, so that the sealingperformance is improved, and
cell sap leakage is prevented; and meanwhile, a diaphragm is connected with the external of the test tube in a sleeving manner, so that
liquid nitrogen which is put in a first accommodating cavity between the diaphragm and the tank body can be effectively prevented from leaking, and the safety is ensured.