| 摘要 |
A device for monitoring pressure within a gas space, which is filled with gas, preferably nitrogen, and/or is prestressed, of a pressure accumulator of a hydraulically driven percussive mechanism having a housing in which a piston is mounted, together with a display element which extends through the face surface of the housing, so as to be slidingly movable counter to the force of a spring, wherein the piston divides the housing into a pressure chamber and a spring chamber. The spring acts on a spring chamber-side working surface of the piston, and the pressure accumulator is at least indirectly operatively connected to the pressure chamber-side working surface of the piston, such that, in the event of a critical pressure within the pressure accumulator being undershot, the piston and the display element are displaced to such an extent that the display element protrudes out of the housing. |
| 主权项 |
1. A device for monitoring a pressure within a gas space, which is filled with a gas, preferably nitrogen, and/or is prestressed, of a pressure accumulator of a hydraulically driven percussive mechanism, the device comprising:
a housing in which a piston is mounted, together with a display element which extends through a face surface of the housing, so as to be slidingly movable counter to a force of a spring, wherein the piston divides the housing into a pressure chamber and a spring chamber, the spring acting on a spring chamber-side working surface, which is averted from the display element, of the piston, and the pressure accumulator is at least indirectly operatively connected to the pressure chamber-side working surface, facing toward the display element, of the piston, such that, in an event of a critical pressure within the pressure accumulator being undershot, the piston and the display element are displaced to such an extent that the display element protrudes out of the housing. |
