JPS6416612U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a sectional view of the main parts of an oil flow indicator of a transformer showing an embodiment of this invention when the oil flow is in a normal state, and Figure 2 is a sectional view of the oil flow indicator shown in Figure 1 when the oil flow is stopped. 3 is a sectional view of the main part showing the condition, FIG. 3 is a sectional view of the main part showing the oil flow indicator of a conventional transformer, FIG. 4 is a front view of FIG. 3,
FIG. 5 is a rear view of FIG. 3. In the figure, 1 is an oil pipe, 21 is a case, and 23
24 is a pressure receiving plate, 25 is a link, 26 is an operating rod, 27 is a gear, 28 is a pointer operating rod, 29 is a pointer, 30 is a scale glass, and 31 is a micro switch. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims for Utility Model Registration] (1) A device having a pressure receiving plate that is provided in insulating oil in an oil pipe drawn out from the main body of an oil-filled electrical device and receives pressure from the flow of the insulating oil, and that the pressure receiving plate is applied to the pressure receiving plate. a lever rod that rotates due to pressure and detects the flow of the insulating oil while receiving a repulsive force in a direction opposite to the rotational direction; and a lever rod that is installed outside the oil pipe and detects the flow of the insulating oil. a display unit that displays the flow of the insulating oil detected by the lever bar; and a transmitting body that is provided between the lever bar and the display unit and that transmits the flow of the insulating oil detected by the lever bar to the display unit. An oil flow indicator for oil-filled electrical equipment, characterized by comprising: (2) The transmission body has one end shaped like a tooth inside the display section, and one end connected to the display section and an operating rod that transmits the oil flow state to the display section by reciprocating motion in the axial direction, and one end that is connected to the display section to transmit the oil flow state to the display section. A utility model according to claim 1, wherein the rod is rotatably connected at the other end to a lever bar, and a link converts the rotational motion of the lever bar into a reciprocating motion in the axial direction of the operating bar. Oil flow indicator for oil-filled electrical equipment. (3) It is installed around the operating rod so as to cover it and expands and contracts as the operating rod reciprocates, and absorbs the elastic force that tries to rotate the lever rod in the opposite direction of rotation. 2. An oil flow indicator for oil-filled electrical equipment according to claim 2, which is provided with a bellows that serves as a partition wall for maintaining oil tightness in an oil pipe. (4) The display section consists of a gear that rotates in mesh with the teeth of the operating rod, a pointer operating rod that has teeth that mesh with the gear and moves up and down, a scale glass that displays the presence or absence of oil flow, and a dial on the pointer operating rod. An oil flow indicator for oil-filled electrical equipment as set forth in claim 2 or 3 of the utility model registration claim, comprising a pointer attached to the scale glass and pointing to a display on the scale glass. (5) An oil flow indicator for an oil-filled electrical device according to any one of claims 1 to 4 of the utility model registration claim, wherein the oil-filled electrical device is a transformer.