JPH0416376Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a liquid outlet plug for a storage battery.

BACKGROUND ART As shown in FIG. 3, a conventional liquid spout has a structure in which a labyrinth structure is provided inside the liquid spout by combining a liquid spout body 16 and a splash-proof device 17 to prevent splashing of the electrolyte. and overflow prevention function. That is, even if the electrolyte enters through the external slit 12, the slit 18 of the splash-proof device is provided on the opposite side from the external slit 12 so that the electrolyte does not enter into the splash-proof device 17, and the gas inside the battery is discharged. It was.
However, even with this structure, the electrolyte that has directly entered from the external slit 12 bounces off the inner wall 19,
This has the drawback that the electrolytic solution easily enters into the splash-proof device 17, and the electrolyte that has entered overflows from the exhaust port 20 located directly above it together with the exhaust gas. In order to solve this drawback, a sealing plate 13 is placed on the top of the liquid port plug 16.
is provided, and the exhaust gas containing electrolyte is directly passed through the exhaust port 2.
The structure was designed to provide a detour as shown by the arrow in Fig. 3 to prevent it from reaching zero.

Problems to be Solved by the Invention When the sealing plate 13 is installed above the liquid spout 16, the structure of the liquid spout 16 becomes complicated, resulting in a problem that increases costs. Furthermore, there is a problem in that acid droplets ooze out from the part where the sealing plate 13 is attached to the liquid port stopper 16, and furthermore, if a filter is placed below the sealing plate 13, acid droplets will accumulate on the filter, and eventually However, there was a problem in that the electrolytic solution accumulated up to the bottom of the sealing plate 13 and the electrolytic solution overflowed from the exhaust port 20.

The present invention was devised in view of the above-mentioned problems, and its purpose is to provide a liquid spout plug for a storage battery that has a simple structure and prevents electrolyte from overflowing.

Means for Solving the Problems The liquid spout plug for a storage battery of the present invention has a splash-proof body 6 and a splash-proof cylinder 8, and the splash-proof body 6 includes a box body 6' having an open top surface;
A splash-proof plate 4 hanging down from the first bottom surface 3 of the box body 6'
and a plate-shaped second bottom surface 5 at the lower end of the splash-proof plate 4, the splash-proof tube 8 has a second slit 7 on its outer peripheral surface, and the box body 6 ' has a first slit 2 on the side surface, and the first bottom surface 3 is inclined downward toward the first slit 2, and the second bottom surface 5 is The splash-proof body 6 is arranged inside the splash-proof tube 8 so that the lower part of the second bottom face 5 is located below the second slit 7. The second bottom surface 5 closes the lower part of the splash-proof cylinder 8.

Function The electrolytic solution that has directly entered through the second slit 7 bounces off the splash-proof plate 4 and falls, and flows from the bottom of the second slit 7 along the second bottom surface 5 to the liquid spout plug 1. It is refluxed to the outside. Furthermore, even if the gas accompanied by acid mist enters through the second slit 7, it is bounced off by the splash-proof body 4 and is returned from the second slit 7 into the battery. Furthermore, even if the gas accompanied by acid mist penetrates into the inside of the box body 6' through the gap between the splash-proof body 4 and the splash-proof cylinder 8, the acid mist will condense between them because it has a labyrinth structure. The first bottom surface 3 and the second
from the second slit 7 along the bottom surface 5 of the liquid spout 1
is refluxed to the outside.

Example An embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is a side sectional view of a liquid spout plug for a storage battery according to the present invention, and FIG. 2 is a front sectional view of the same. and filter 9 are arranged. The splash-proof body 6 includes a cylindrical box body 6' with an open top surface and a first bottom surface 3 of this box body 6'.
It has a splash-proof plate 4 hanging down from the top and a disk-shaped second bottom surface 5 at the lower end of the splash-proof plate 4. The box body 6'
A first slit 2 is provided on the side surface of the slit 2, and the first bottom surface 3 is inclined downward in the direction of the slit 2. The second bottom surface 5 is inclined in the opposite direction to the first bottom surface 3.

The splash-proof cylinder 8 has a second slit 7 in the upper part of its outer circumferential surface, and a rubber packing 10 is provided above so as to be able to seal the cylinder when it is fitted with the liquid injection port of the battery.

In order to arrange the splash-proof body 6 inside the splash-proof tube 8, the splash-proof body 6 is inserted from below the splash-proof tube 8, and the second bottom surface 5 of the splash-proof body 6 is placed inside the splash-proof tube 8. The connection may be made while fitting into the stepped portion 15 formed at the lower part of the holder.
At this time, the upper surface of the second bottom surface 5 is aligned with the second slit 7.
If the electrolytic solution is located at the lower part of the liquid port plug 1, the electrolytic solution that has entered the liquid port plug 1 can smoothly flow back into the battery along the second bottom surface 5.

Note that the first slit 2 is similar to the second slit 7.
It is located almost on the opposite side of the Further, the width of the splash-proof plate 4 is set larger than the width of the second slit 7. 11 is an exhaust port for discharging gas inside the battery.

Effects of the Invention Since the present invention is configured as described above, it has the following effects.

(1) A simple structure of providing the splash-proof plate 4 can prevent the electrolyte from entering.

(2) Gas with acid mist that entered through the second slit 7 condenses before reaching the exhaust port 11 and flows back into the battery, so even if a filter is installed above the splash-proof body 6, the electrolysis No liquid buildup,
Electrolyte does not overflow from the exhaust port.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a liquid spout plug for a storage battery according to the present invention, FIG. 2 is a front sectional view of the same essential part, and FIG. 3 is a side sectional view of a conventional liquid spout plug. DESCRIPTION OF SYMBOLS 1... Storage battery liquid port plug, 2... First slit, 3... First bottom surface, 4... Splash-proof plate, 5... Second bottom surface, 6... Splash-proof body, 6'... ...Box body, 7...
Second slit, 8...splash-proof tube.

Claims (1)

[Scope of Claim for Utility Model Registration] A liquid spout plug 1 for a storage battery having a splash-proof body 6 and a splash-proof tube 8, wherein the splash-proof body 6 includes a box body 6' having an open top surface;
A splash-proof plate 4 hanging down from the first bottom surface 3 of the box body 6'
and a plate-shaped second bottom surface 5 at the lower end of the splash-proof plate 4, the splash-proof tube 8 has a second slit 7 on its outer peripheral surface, and the box body 6 ' has a first slit 2 on the side surface, and the first bottom surface 3 is inclined downward toward the first slit 2, and the second bottom surface 5 is The splash-proof body 6 is arranged inside the splash-proof cylinder 8 so that the lower part of the second bottom face 5 is located below the second slit 7. A liquid spout plug for a storage battery, characterized in that the second bottom surface 5 closes a lower part of the splash-proof cylinder 8.