JPH0596412U - Oil pan - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an oil pan capable of discharging a small amount of water accumulated at the bottom of the oil pan without discharging a large amount of oil. An oil pan characterized in that a drain plug 1 provided on a bottom portion 81 of an oil pan 80 is further provided with a drain plug 2 having a smaller diameter so as to be attachable and detachable. The drain plug 2 is pulled out when the water 3 is preferentially discharged, and the drain cap 1 is pulled out when a large amount of the oil 9 is discharged.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an oil pan that can handle both large-scale oil discharge and drainage.

[0002]

[Prior art]

 As shown in FIG. 3, a drain cap 7 for discharging the oil 9 is provided in an oil pan 80 of various vehicles such as a forklift truck. The drain cap 7 is screwed from the outside into a discharge port 82 provided in the bottom 81 of the oil pan 80.

By the way, in the oil pan 80, moisture in the outside air may condense, and water may accumulate below the oil 9. Therefore, it is necessary to occasionally discharge this moisture. In addition, since the oil may infiltrate or deteriorate during long-term use, it is necessary to discharge the entire amount of oil and replace it with a new one. Therefore, when draining the water and oil used, the drain cap 7 is removed to drain water and oil from the drain port 82 as shown in FIG.

[0004]

[Problems to be solved]

 However, the conventional drain cap was not suitable for draining a small amount of water accumulated at the bottom. That is, even when the small amount of water is discharged, a large amount of oil is simultaneously discharged when the drain cap 7 is removed. On the other hand, in order to cope with this, if the drain cap 7 is made small, it takes a long time to change the oil. In view of such conventional problems, the present invention intends to provide an oil pan capable of discharging a large amount of oil and also capable of discharging a small amount of water.

[0005]

[Means for solving the problem]

 The present invention comprises an oil pan for storing oil and a removable drain cap provided at the bottom of the oil pan. The drain cap has a drain plug with a smaller diameter than that for draining water. The oil pan is characterized by being detachably installed.

That is, in the present invention, a drain plug having a smaller diameter is provided inside the drain cap, and the oil discharge portion has a double structure of the drain cap and the drain plug. Further, the drain plug is detachably attached to the drain cap. The drain cap is detachably attached to the oil pan. The upper surface of the drain cap is preferably located below the bottom surface of the oil pan (see Figure 1). This allows the water in the oil to remain on the upper surface of the drain cap and preferentially discharge the water when the drain plug is removed.

[0007]

[Action and effect]

 In the present invention, since the drain plug having a small diameter is provided, by removing the drain plug, it is possible to preferentially discharge only a small amount of water accumulated in the oil below the oil pan. On the other hand, if you remove the drain cap, you can quickly discharge a large amount of oil as before. That is, if the drain plug is removed from the drain cap while the drain cap is still attached to the oil pan, the drain plug has a small diameter, so a small amount of water and a small amount of oil can be discharged at a low speed.

Therefore, it is easy to discharge a small amount of oil in the oil pan to adjust the amount of oil or to remove a small amount of water accumulated at the bottom. Also, unlike the conventional case, when discharging a small amount of water, there is no problem that a large amount of oil is discharged at the same time. Therefore, according to the present invention, it is possible to provide an oil pan capable of discharging a large amount of oil and also capable of discharging a small amount of water.

[0009]

【Example】

 An oil pan according to an embodiment of the present invention will be described with reference to FIGS. This example comprises an oil pan 80 for storing the oil 9 and a removable drain cap 1 provided at a bottom portion 81 of the oil pan 80. The drain cap 1 has a smaller diameter for draining water. The drain plug 2 is detachably provided. The diameter of the drain plug 2 is a fraction of the diameter of the drain cap 1.

That is, in the bottom portion 81 of the oil pan 80, the drain cap 1 is detachably screwed to the oil discharge port 82 thereof. Further, the drain plug 1 is detachably screwed to the water discharge port 85 of the drain cap 1. The top surface 13 of the drain cap 1 is located below the bottom surface 811 of the oil pan 80. Further, a cap gasket 6 and a plug gasket 26 are interposed between the bottom 81 and the drain cap 1 and between the drain cap 1 and the drain plug 2 to prevent leakage.

Next, the function and effect of this example will be described. By removing the drain cap 1, a large amount of oil 9 can be discharged in a short time. If the drain plug 2 is removed from the drain cap 1 as shown in FIG. 2, the diameter of the drain plug 2 is smaller than the diameter of the drain cap 1 by a fraction, so a small amount of liquid can be discharged. it can. Therefore, it is easy to discharge only a small amount of water accumulated in the oil, and a large amount of oil is not discharged at the same time when water is discharged as in the conventional case.

Further, in this example, the upper surface 13 of the drain cap 1 is located below the bottom surface 811 of the oil pan 80. Therefore, the water 3 can be retained in advance in the recess formed by the upper surface 13 of the drain cap 1 and the oil discharge port 82. Therefore, when the drain plug 2 is pulled out, the water 3 can be preferentially discharged.

[Brief description of drawings]

FIG. 1 is a sectional view around a drain cap in an oil pan according to a first embodiment.

FIG. 2 is a cross-sectional view when the drain plug is removed in FIG.

FIG. 3 is a cross-sectional view around a conventional drain cap.

FIG. 4 is a cross-sectional view when the drain cap is removed in FIG.

[Explanation of symbols]

 1. ． ． Drain cap, 2. ． ． Drain plug, 3. ． ． Moisture, 80. ． ． Oil pan, 81. ． ． Bottom, 9. ． ． oil

Claims (1)

[Scope of utility model registration request] 1. An oil pan for storing oil,
An oil pan comprising a detachable drain cap provided at a bottom portion of the oil pan, wherein the drain cap is detachably provided with a drain plug for draining water.