Patent EA-004835-B1 (EA)
Title: Protective casing for housing gauging equipment freely positioned on a production installation
IPC: G01D11/24
Filed: 2003-06-17
Abstract: 1. A protection casing for housing metering equipment freely positioned on a production installation, comprising a retaining device connected to the protection casing from one side and to the metering equipment from the other side, said protection casing is arranged and retained on the gauging equipment by said retaining device, at least two casing parts connected therebetween by at least one connecting member, preferably by at least one hinging element, wherein the casing parts, when closed, comprises a receiving cavity, in which said metering equipment can be arranged, wherein a part of the equipment, in particular, at least one metering line being connected preferably tightly to the production installation in the closed position of the protection casing can be withdrawn through a reach-through hole made in the protection casing wall, wherein the casing parts, when opened, for free access to the metering equipment are adapted to fold back therefrom, characterized in that the retaining device is formed by a hinged device (18) comprising hinged axis (19) positioned in the receiving cavity (8) on the inner wall of the protection casing, the protection casing (1) is adapted to fold back from the metering equipment (32) in the opened position around the hinged axis (19). 2. The protection casing according to claim 1, characterized in that the hinged axis (19) on the inner wall of the protection casing is positioned near the casing parts connecting member, preferably near the casing parts connecting member in the form of the hinged element (4). 3. The protection casing according to claim 1or 2, characterized in that the hinged device (18) is positioned on the inner wall of one of protection casing parts (2,3) mainly at a near portion to the inner wall of one of protection casing parts (2,3). 4. The protection casing according to one of claims 1-3, characterized in that two parts (2,3) are provided and closely fit to each other in the closed position using casing wall edges as thrust edges. 5. The protection casing according to one of claims 1-4, characterized in that the hinged axis (19) of the hinged device (18) designed as a retaining device is oriented approximately parallel to the hinged axis (5) of at least one hinged element (4) as a connecting rotatable member to connect the casing parts (2,3). 6. The protection casing according to one of claims 1-5, characterized in that the hinged device (18) further comprises a hinged loop (20,21) from the side of the protection casing rotatable on the hinged axis (19) and fastened on the inner side of the protection casing. 7. The protection casing according to claim 6, characterized in that the hinged axis is oblong and a bar-like, wherein at least two hinged loops (20,21) are disposed on the hinged axis (19) in a longitudinal direction and spaced apart. 8. The protection casing according to claim 6 or 7, characterized in that each hinged loop (20,21) comprises a plate (26) with at least one eye (27) arranged thereon and embracing the hinged axis (19). 9. The protection casing according to one of claims 6-8, characterized in that the hinged device (18) further comprises a second hinged loop (22,23) from the side of the metering equipment which is adapted to be connected to the metering equipment (32) and disposed on the hinged axis (19) rotatably turnable by at least one hinged eye. 10. The protection casing according to claim 9, characterized in that the first (20,21) and the second (22,23) hinged loops are disposed opposite each other on the hinged axis (19) at about the same height to form pairs of the first and the second hinged loops (20,21,22,23). 11. The protection casing according to one of claims 1-10, characterized in that the hinged device (18) is connected to the metering equipment (32) indirectly through a mounting bar (24) using which a position between the protection casing (1) and the metering equipment (32) can be regulated in at least one spatial direction. 12. The protection casing according to claim 11, characterized in that the mounting bar (24) comprises a longitudinal slot (25) and mainly has a C-shaped cross section adapted to be fixed on the hinged device (18) so that the longitudinal slot (25) passes about longitudinally to the metering equipment (32) and/or the hinged axis (19) for required change, if necessary, of the position between the metering equipment (32) and the protection casing (1) in the longitudinal direction of the metering equipment, mainly in cases of withdrawing parts of the metering equipment (32) in the longitudinal direction through the wall of the protection casing. 13. The protection casing according to claim 11 or 12, characterized in that a grooving connection is provided between the mounting bar (24) and the hinged device (18) and/or between the mounting bar (24) and the metering equipment (32), if necessary, through at least one mounting plate (29) arranged between the mounting bar (24) and the metering equipment, a provision exists to change the position between the mounting bar (24) and the hinged device (18) and/or between the mounting bar (24) and the metering equipment (32), at least in one longitudinal direction other then the direction of the longitudinal slot, mainly in the transverse direction to the longitudinal slot direction. 14. The protection casing according to one of claims 1-13, characterized in that a through hole (9) is formed by two semicircular recesses (10,11) made in each of the corresponding casing parts (2,3), which, when the protection casing is closed, form a circular recess embracing with tightness at least one part (28) of the metering equipment (32) introduced through it, a shaped body (12) can be inserted into the circular recess, said body is made preferably of an elastic material and retained preferably tightly and embraces a part (38) of the metering equipment (32) introduced through the hole (9) and between the protection casing (1) parts (2,3) when the casing in the closed position, and/or the casing parts (2,3) are adapted to split locking by at least one locking element, preferably by at least one fast-acting locking element (16,17), and/or the casing parts are formed by two similar trough-shaped halves (2,3) made preferably of hot-pressed fiberglass plastic, preferably polyester.