Patent Number: 
Section: claims

1. A radiation shielding device, mounted on a vehicle, for meteorological observation with internal air circulation, the radiation shielding device comprising:a body for allowing one or more meteorological sensors to be mounted therein;a cover for covering the body by engaging with the body; anda modified Venturi tube which is physically formed while the body and the cover are engaged with each other;wherein, while the body and the cover are engaged with each other, the modified Venturi tube is configured as a first opening for receiving external air from an exterior of the body, a second opening for receiving internal air from an interior of the body, and a third opening for releasing the received external air and the received internal air, andwherein a size of a cross-section of the first opening and a size of a cross-section of the third opening are increased along directions from a central portion of the modified Venturi tube to both ends of the modified Venturi tube, andwherein the modified Venturi tube performs a function of a conventional Venturi tube by using the first opening and the third opening, and allows the internal air in the interior of the body to flow into the modified Venturi tube through the second opening, andwherein, the first opening, the second opening and the third opening are configured such that, while the vehicle on which the radiation shielding device is mounted is moved, the external air gets into the modified Venturi tube through the first opening, the internal air gets into the modified Venturi tube through the second opening, and the external air and the internal air are released from the modified Venturi tube through the third opening to thereby allow the internal air therein to be circulated, andwherein a fourth opening is formed on a bottom portion of the body, to allow the internal air to be circulated according to (i) a first airflow vector including a 1-1 sub-vector representing that the external air is received by the bottom portion of the body through the fourth opening, a 1-2 sub-vector representing that the received external air is transmitted to the central portion of the modified Venturi tube via the second opening and a 1-3 sub-vector representing that the transmitted external air is released through the third opening, which is much facilitated by an aid of (ii) a second airflow vector including a 2-1 sub-vector representing that the external air is received through the first opening and a 2-2 sub-vector representing that the received external air is released through the third opening to be added together, to thereby promote the internal air circulation of the body, andwherein each of the size of the cross section of the first opening, the size of the cross section of the second opening, and a size of a cross section of the third opening is controlled to be increased or decreased to adjust an intensity of an airflow in the body by referring to a total vector, which is obtained by adding the first airflow vector and the second airflow vector. 2. The radiation shielding device of claim 1, wherein an internal supporting structure for allowing the one or more meteorological sensors to be mounted is installed on a predetermined portion within the body, andwherein the one or more meteorological sensors are mounted on the internal supporting structure. 3. The radiation shielding device of claim 1, wherein the body and the cover are engaged with each other by using a first fastening mechanism formed on the body and a second fastening mechanism formed on the cover, and wherein a minimum size of the cross-section of the first opening and a minimum size of the cross-section of the third opening are adjusted to be equal to or less than a predetermined threshold by controlling the first fastening mechanism and the second fastening mechanism while the first fastening mechanism and the second fastening mechanism are in alignment.