JPH0218522Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to improving a liquid port plug for a storage battery, and aims to improve the splash-proof performance and the electrolyte overflow prevention performance.

Conventionally, liquid spout plugs for storage batteries have an internal labyrinth structure formed by a combination of a liquid spout main body and a splash-proof plate to maintain splash-proof performance and electrolyte overflow prevention performance.
However, because the narrow liquid port plug body has a complicated maze structure, it is not easy for the electrolyte to enter, but once it does, it cannot flow back into the battery and has no choice but to overflow to the outside. It had some flaws.

The present invention has been developed in view of the above points, and it is an object of the present invention to provide a liquid spout plug with a simple structure and excellent splash-proof and spill-proof performance.

In order to achieve the above object, the present invention is equipped with a splash-proof cylinder whose top surface protrudes into the liquid spout body and whose bottom surface is inclined, attached to the lower part of a hollow liquid spout body provided with an exhaust port. , the splash-proof tube has the following configuration. That is, a first slit is provided on the side surface of the lower bottom surface of the splash-proof cylinder, and a baffle plate is provided inside the splash-proof cylinder at a position facing the first slit, which protrudes into the liquid spout body. A second slit is provided on the side surface of the splash-proof tube at a position that is blocked by the baffle plate and cannot be seen directly from the first slit. The baffle plate reaches from the upper surface to the lower surface of the end protector, leaving a gap between one side of the baffle plate and the side wall of the end protector. In other words, the present invention has a structure in which two liquid outlet plugs are stacked one on top of the other.

With the above configuration, the electrolyte that has entered through the first slit collides with the baffle plate, flows down the inclined bottom of the splash-proof cylinder, and flows back into the storage battery from the first slit. Furthermore, even if the electrolyte that has entered exceeds the baffle plate, the second slit will
Since it is located on the opposite side of the baffle plate from the first slit, it is difficult for the liquid to penetrate into the main body of the liquid spout, and the liquid flows back into the battery as described above.

Next, an example of the present invention will be explained with reference to the drawings.

As shown in Figures 1 and 2, there is an exhaust port 1 on the top surface.
A splash-proof cylinder 3 whose upper surface projects into the liquid spout body 2 and whose bottom surface is sloped is attached to the lower part of the hollow liquid spout body 2 provided with the liquid spout body 2. A baffle plate 4 is provided inside the splash-proof tube 3, and the baffle plate 4 has a first slit 5 provided on the lower side of the splash-proof tube 3 on the side with a lower bottom, as shown in FIG. I am facing with. On the other hand, as shown in FIG. 4, a second slit 6 is provided above the splash-proof tube 3, and the second slit 6 is blocked by the baffle plate 4 and cannot be seen from the first slit 5. It is located where it cannot be seen directly.

In the above example, the first slit 5 is provided to be slightly offset from the lowest part of the splash-proof tube 3 in order to allow the baffle plate 4 as narrow as possible to block the intruding electrolyte. If the width of the baffle plate 4 is made close to the inner diameter of the splash-proof cylinder 3, the electrolyte can be effectively blocked, but this is not desirable because the electrolyte that has once entered cannot be smoothly circulated. Although some electrolyte will remain at the lowest part of the splash-proof cylinder 3, there is no substantial problem.

In addition, the baffle plate 4 is
The width may be increased and a first slit 5 may be provided in the side wall of the lowest part of the splash-proof cylinder 3 to prevent the electrolyte from remaining.

With the above-described structure, according to the present invention, the electrolytic solution that has entered through the first slit collides with the baffle plate, flows down the sloping bottom surface of the splash-proof tube, and flows back into the battery. Even if the electrolytic solution crosses the baffle plate, the second slit is located on the back side of the baffle plate, so it is difficult to reach the inside of the liquid spout plug body. Further, since there is only one baffle plate in the splash-proof cylinder, a large space can be taken up, and the electrolyte can be smoothly refluxed. Furthermore, since the space inside the liquid spout body can be large, even if the electrolytic solution should have entered the liquid spout body, it can be efficiently refluxed, and the practical value of the present invention is extremely great.

[Brief explanation of the drawing]

Figure 1 is a front view showing an example of the present invention, Figure 2 is a sectional view taken along line A-A' in Figure 1, and Figure 3 is a
FIG. 4 is a sectional view taken along line B-B' in the figure, and FIG. 4 is a sectional view taken along line C-C' in FIG. 1 is the exhaust port, 2 is the liquid outlet plug body, 3 is the splash-proof cylinder, 4
is a baffle plate, 5 is a first slit, and 6 is a second slit.

Claims (1)

[Scope of utility model registration request] A splash-proof cylinder whose upper surface protrudes into the liquid spout body and whose bottom surface is inclined is attached to the lower part of the hollow liquid spout body with an exhaust port, and the bottom surface of the lower part of the splash-proof cylinder is attached to the lower side. In addition to providing a first slit in the splash-proof tube, there is an obstacle in the splash-proof tube at a position facing the first slit that reaches from the top surface of the splash-proof tube to the bottom and leaves a gap between one side and the side wall of the splash-proof tube. A liquid spout plug for a storage battery, comprising a plate, and a second slit provided on a side surface above the splash-proof cylinder at a position that cannot be seen directly from the first slit.