Hydraulic attachment

摘要

The present invention relates to a hydraulic attachment comprising a hydraulic circuit, the attachment being a construction or demolition tool, in particular a hydraulic breaker, demolition shears, scrap shears, a pulverizer, a gripper, a crusher bucket or a compactor, which can be mechanically connected to a support device and hydraulically connected to the hydraulic system of the support device. In order to enable the hydraulic circuit to be opened quickly and safely within an attachment and, in particular, to make it possible to display the presence of a particular pressure level within a hydraulic attachment and to determine whether a dangerous residual pressure is present in the system, a hydraulic attachment is proposed that has a residual pressure display (40) which is connected to the hydraulic circuit of the attachment in a detachable or non-detachable manner.

主权项

1. In combination with a support device having a hydraulic circuit, a hydraulic attachment mechanically connectable to the support device and equipped to hold a residual pressure even when disconnected, the hydraulic attachment comprising:
a hydraulic circuit connected to the hydraulic circuit of the support device when the support device is mechanically connected to the hydraulic attachment and separated therefrom when the support device is disconnected from the attachment; and a residual pressure indicator connected directly to the hydraulic circuit of the attachment, carried on the attachment, and displaying the pressure in the hydraulic circuit of the attachment both when same is connected to the support device and when disconnected therefrom.