JPH0439665Y2 - - Google Patents

Description

[Detailed explanation of the idea]

This invention relates to the improvement of a liquid spout plug for storage batteries (hereinafter simply referred to as a liquid spout plug), and its purpose is to integrally mold a splash-proof plate on a part of the lower end of the side wall of the hollow liquid spout body. , and the splash-proof plate is bent and its end is fixed to a side wall facing the splash-proof plate and having a vertical slit, and a splash-proof wall having a slit is integrally formed from the ceiling inside the liquid spout body. In an integrally molded liquid spout with a hanging structure,
The objective is to improve the splash-proofing effect without impairing productivity. Conventionally, as with the liquid spout plug described in Publication of Utility Model Publication No. 47-27858, it is now possible to integrally mold a splash-proof plate at the lower end of the liquid spout body and a splash-proof wall with a slit inside the liquid spout body. A liquid spout plug with such a structure has been proposed and put into practical use. This conventional spout has the advantage of increasing the productivity of the spout. However, since this type of conventional integrally molded liquid spout plug had only one splash-proof wall, it had a splash-proof effect against high-frequency vibrations, but it was not effective against low-frequency vibrations due to electrolysis. The drawback was that liquid droplets entered through the slits in the splash-proof wall, and some electrolyte droplets escaped through the exhaust hole. The present invention eliminates the above-mentioned drawbacks and provides a liquid spout plug with excellent splash-proof effect and productivity. The purpose is to make the gap between the splash-proof walls and the gap between the splash-proof wall and the inner wall of the liquid spout plug body 1.5 mm or more by hanging from the sheet molding. Hereinafter, the present invention will be explained with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a hollow liquid spout body made of synthetic resin, such as polypropylene, whose lower end a is formed into a diagonally cut shape. Reference numeral 2 denotes a threaded portion provided at the center of the side wall of the liquid spout body 1, and 3 represents the upper part of the slope of the lower end of the side wall of the liquid spout body 1, that is, the liquid spout body 1.
This is a splash-proof plate that is integrally formed on a part of the short side wall b at the lower end of the screen.When the splash-proof plate is formed, it is in the state shown by the broken line in Fig. The distal end thereof is bent and fixed to the lower end of a slit on the inner wall surface of the liquid spout main body 1, which will be described later, in a recess 4 provided to intersect the slit with an inclination. Reference numeral 5 denotes a position facing the splash-proof plate 3 at the lower end of the side wall of the liquid spout body 1 in which the splash-proof plate 3 is integrally formed, that is, a long side wall c at the lower end of the liquid spout body 1.
This slit 5 causes the electrolyte droplets that entered the liquid spout body 1 as acid mist together with the exhaust gas to condense on the inner surface of the liquid spout body 1, and quickly return to the storage battery. It has the effect of causing Furthermore, 6 is an exhaust hole for discharging gas from inside the liquid spout body 1 to the outside, 7 and 7' are splash-proof walls suspended from the ceiling inside the liquid spout body 1, and 7 is a slit 5. The opposed first splash-proof wall 7' is a second splash-proof wall provided between the first splash-proof wall 7 and the exhaust hole 6. Also, splash-proof walls 7, 7'
There are slits 8 and 8 at opposite positions at the bottom of the
8' is provided to facilitate the reflux of acid mist adhering to the splash-proof walls 7, 7'. Furthermore, splash walls 7 and 7'
the gap Y between the splash-proof wall 7 and the inner wall of the liquid spout body 1, and the gap X between the splash-proof wall 7' and the liquid spout body 1
The gap Z with the inner wall should be at least 1.5 mm. In this embodiment of the present invention, when the storage battery is subjected to high-frequency vibration, electrolyte splashes that have entered through the slit 5 at the bottom of the liquid spout body 1 will be absorbed by the first splash-proof wall 7.
After condensation and dripping, the liquid flows back into the storage battery through the slit 5 at the bottom of the liquid port body 1. However, in the case of low-frequency vibrations, some electrolyte splashes are caused by the first splash-proof wall 7.
However, it collides with the second splash-proof wall 7', where it condenses and drips, passes through the slit 8 of the first splash-proof wall 7, and exits from the slit 5 at the bottom of the liquid spout body 1. It will be refluxed into the storage battery.
It should be noted that if the gaps X and Z between the splash-proof wall 7 or 7' and the inner wall of the liquid outlet plug main body 1 are less than 1.5 mm, it is undesirable because the flow cannot flow smoothly.
If the gap Y between 7' is less than 1.5 mm, the electrolyte splashes will also go around the slit 8' of the second splash-proof wall 7', which is undesirable. Further, even if two splash-proof walls were provided within the liquid spout body as in the embodiment of the present invention, integral molding could be carried out without any problem. The following liquid spout plug according to the embodiment of the present invention (product of the present invention)
and a conventional liquid spout plug (conventional product) with one integrally molded splash-proof wall as described above, and the gap between two splash-proof walls and the gap between the splash-proof wall and the liquid spout body, respectively. A liquid spout plug (reference product) with a structure similar to that of the embodiment of the present invention with a diameter of less than 1.5 mm was manufactured.
Table 1 shows the results of the vibration flooding test.

[Table] As is clear from Table 1, the embodiments of the present invention have sufficient splash-proofing effects even against low-frequency vibrations. As mentioned above, the liquid spout of the present invention has excellent productivity similar to the conventional integrally molded liquid spout,
Moreover, it has a splash-proofing effect that is superior to that of conventional integrally molded liquid spout plugs.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of a liquid spout plug for a storage battery according to the present invention, FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line B-B in FIG. FIG. 4 is an external perspective view of the splash-proof wall in the embodiment of the present invention. 1...Liquid spout plug body, 3...Splash-proof plate, 5...Slit, 7, 7'...Splash-proof wall, 8, 8'...Slit.

Claims (1)

[Scope of utility model registration request] A splash-proof plate is integrally formed on a part of the lower end of the side wall of the hollow liquid spout body, and the splash-proof plate is bent and its end is fixed to a side wall facing the splash-proof plate and having a vertical slit. In addition, in a storage battery liquid spout plug in which a splash-proof wall having a slit is formed integrally and hangs from the ceiling inside the liquid spout body, the splash-proof wall is made of two pieces with the slit positions shifted, and Gap and the gap between the splash-proof wall and the inner wall of the liquid port plug body is 1.5
Liquid spout plug for storage batteries made of mm or more.