JPS595280Y2 - Drain device for liquid tank in work equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drain device for a liquid tank in a working machine.

In other words, the lower drain of a liquid tank such as fuel oil can be easily operated with a lever to drain the liquid, and even if the liquid tank is mounted on the inside of the work equipment, the drain can be easily operated from the outside. In addition, the drain can be operated instantly with a one-touch operation, and it can be drawn out to the outside to prevent it from falling inside the fuselage. This is what we provide.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a schematic plan view of a combine harvester, which is a working machine.
A reaping section 2 is installed all over the fuselage, a threshing section 3 is installed behind it, a control column 4 is installed at the front right side of the fuselage, a seat 5 is installed behind it, and a lower part that supports the seat 5 is installed. An engine is installed inside the cover 6, and a paddy receiving part 7 is installed behind it.

A liquid tank A for storing fuel oil for the engine is installed inside the cover 6 and away from the outside of the fuselage, and a screw hole 9 is provided at the bottom of the liquid tank A, which has a fuel filler cap 8 above. A bolt-shaped drain plug B is screwed into the screw hole 9 of the drain part 10 to be tightened and fixed.

The plug B has a circular hole 1 that penetrates downward in the center, and a plug C is tightly fitted into the hole 1 so as to be able to move up and down. Forms a flange part 12 that can be brought into close contact with the bottom surface of the liquid tank A through the upper O-ring 11 of the drain plug B, and connects the plug body C to the lower end through the outflow hole 13 that opens on the lower side of the flange part 12. The outflow hole 13 is formed in the center, and the outflow hole 13 is formed around the part near the lower end.
A compression spring 15 is interposed between the lower surface of the plug B and the support plate 14 which is locked around the lower part of the plug body C, and the pressure of the compression spring 15 causes Plug body C
By pushing down, the outflow hole 13 extends into the through hole 1 and can close the through hole 1, and by pushing up the plug C by resisting pressure, the outflow hole 13 communicates with the bottom side of the fluid tank A, and the fluid is discharged. Configure it so that you can.

Reference numeral D is a bridge-shaped lever with a U-shaped cross section, and is installed obliquely so as to extend below the stopper C. The upper side of the inclination of the lever D is rotatably attached to a fixed support shaft 16, and The lower inclined open end 18 of the long bridge-shaped lever D is supported by the lower fixed stopper 17 in the inclined state.
is constructed so that it extends to the outside of the fuselage.

19 is Patsukin.

Therefore, as shown in Figures 3 and 4,
With the bridge-shaped lever D supported by the stopper 17, the inner bottom surface of the lever D separates from the lower part of the plug C, and the plug C is pressed downward by the compression spring 15, and the upper part of the outflow hole 13 looks into the through hole 1, and the flange 12 is O.
When discharging the fuel oil in the liquid tank A in contact with the ring 11, when the bridge-shaped lever D is lifted upward as shown in FIG. The inner bottom surface of the shaped lever D hits the lower end of the stopper C and exerts tension on the compression spring 15 to push up the stopper C, and as shown in FIG. A is in communication with the inside of A, and the fuel oil flows into the outflow hole 13 and outflow port 13.
A flows out into the bridge-shaped lever D, flows as it is, and flows out from the open end 18 toward the outside of the fuselage.

Note that when the bridge-shaped lever D is released from being pushed up and lowered, the stopper C can be lowered by the elastic force of the compression spring 15 and the through hole 1 can be closed.

In this way, the present invention forms the through hole 1 in the drain plug B attached to the lower part of the liquid tank A, and the through hole 1 is normally pressed downward to block the through hole 1 and push upward. A plug C that can be opened can be fitted in a vertically movable manner, and the plug C can be pushed up by a bridge-shaped lever D that is diagonally installed so as to look below the through hole 1. The lower drain of the liquid tank A can be easily operated and drained by simply pushing up the bridge-shaped lever D. Even if the liquid tank A is mounted on the inside of the work equipment, the bridge-shaped lever D can be operated from the outside. The drain can be easily operated with a one-touch operation, and it can be easily pulled out using a bridge-shaped lever to prevent it from falling inside the fuselage. It has the advantage of being able to be suitably implemented with a simple structure.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a schematic plan view of the combine, Fig. 2 is a perspective view of the main parts, Fig. 3 is a side view showing a part of the main parts, and Fig. 4 is a drain section. FIG. 5 is a sectional view of the operation. A...Liquid tank, B...Drain plug, 1...
・Through hole, C...Plug body, D...Gutter-shaped lever

Claims (1)

[Scope of utility model registration request] A through hole 1 is formed in a drain plug B attached to the lower part of the liquid tank A, and a plug C is provided in the through hole 1, which can normally be pressed downward to close the through hole 1 and push upward to open it. A liquid tank for a working machine, characterized in that the stopper C is fitted so as to be vertically movable and configured such that the stopper C can be pushed up by a bridge-shaped lever D that is installed diagonally so as to look below the through hole 1. drain device.