Abstract: A refrigerated logistics box, consisting of a box, is configured with a plurality of thermal insulating layers and temperature equalization plates. Cooling liquid is caused to enter the interior of the box to maintain a cold temperature therein for a period of time, or a refrigeration device provides the box with a cold source, which continuously transmits cold to the interior of the box, and cooling liquid inside the box is caused to flow back into the refrigeration device to repeat the cooling process. Such a cyclic cooling process maintains the temperature set for the interior of the box.

Abstract: The present invention provides a refrigeration device, wherein a chamber structure is provided with a refrigeration space, and further fitted with a return outlet flow pipe and a return inlet flow pipe. Cold from a cold source produced by a refrigeration chip passes through a temperature equalization plate or a heat conducting pipe to enter the interior of a refrigeration space. A return inlet flow pipe of the refrigeration device is inserted into a beverage and used to input the beverage to the interior of the refrigeration space for cooling thereof. The beverage is then output from the inside of the refrigeration space through the return outlet flow pipe into a cup. The refrigeration device thus achieves fast cooling of a beverage to produce a cold drink. The refrigeration device can be applied in medical treatment, beds, and clothing, as well as medical equipment to provide a cooling function.

Abstract: The present invention provides a refrigeration device, wherein a chamber structure is provided with a refrigeration space, and further fitted with a return outlet flow pipe and a return inlet flow pipe. Cold from a cold source produced by a refrigeration chip passes through a temperature equalization plate or a heat conducting pipe to enter the interior of a refrigeration space. A return inlet flow pipe of the refrigeration device is inserted into a beverage and used to input the beverage to the interior of the refrigeration space for cooling thereof. The beverage is then output from the inside of the refrigeration space through the return outlet flow pipe into a cup. The refrigeration device thus achieves fast cooling of a beverage to produce a cold drink. The refrigeration device can be applied in medical treatment, beds, and clothing, as well as medical equipment to provide a cooling function.

Abstract: The present invention provides a refrigerated logistics box, which consists of a box, which is configured with a plurality of thermal insulating layers and temperature equalization plates. Cooling liquid is caused to enter the interior of the box to maintain a cold temperature therein for a period of time, or a refrigeration device provides the box with a cold source, which continuously transmits cold to the interior of the box, and cooling liquid inside the box is caused to flow back into the refrigeration device to repeat the cooling process. Such a cyclic cooling process maintains the temperature set for the interior of the box.

Abstract: A method for making a heat column includes a step of preparing a section of a metal object; a step of forging the section of the metal object to be a hollow column which has a flat bottom, a guide surface being formed in the inner periphery of the hollow column, the hollow column having a flat bottom which has a heat-exchange surface; a step of making a neck on one end of the hollow column, and a step of sealing the neck by way of welding when the interior of the hollow column is sucked to be substantial vacuum status, liquid high heat transmission agent being introduced into the interior of the hollow column. The flat bottom is integral formed when the hollow column is formed and the flat bottom is in contact with the heat source.

Abstract: A dental floss tooth pick includes a holder having a space formed between two arms, a dental floss filament attached onto the holder and engaged with the free end portions of the arms and extended through the space of the holder, and a tightening device having a rotatable mandrel for engaging with the dental floss filament and for rotating the dental floss filament relative to the holder to rotate and tighten the dental floss filament to the holder. The mandrel includes an orifice formed in an upper portion, or an aperture formed in a lower portion for receiving and for rotating the dental floss filament and for rotating the dental floss filament relative to the holder.