JPH0412608Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Field of Industrial Application] The present invention relates to the improvement of a storage battery liquid stopper (hereinafter simply referred to as a liquid stopper) used in a storage battery. Although there are liquid stoppers that are composed of parts, the present invention relates to an improvement of a liquid stopper that is made up of one part. [Prior Art] Conventionally, as a one-part liquid stopper, for example, a third
As shown in the figure and FIG. 4, a splash-proof tube 2 is integrally provided at the bottom of the liquid stopper main body 1, a slit 3 is provided on the side of the splash-proof tube 2, and as shown in FIG. The plate-like body 4 is integrated with the lower end of the cylinder 2 and is suspended from the lower end of the splash-proof cylinder 2, and the liquid faucet main body 1, the splash-proof cylinder 2, and the plate-like body 4 are integrally molded at the same time, and then the plate-like body 4 is bent as shown in FIG. 3 to cover the opening at the lower end of the splash-proof tube 2. [Problems to be solved by the invention] However, when the conventional liquid stopper as described above is used in a storage battery that is used under severe vibrations in automobiles, construction machinery, etc., the slit 3 on the side of the splash-proof tube 2 is damaged during vibration. In some cases, the electrolyte that entered the liquid stopper body 1 caused overflow. The present invention solves the above-mentioned problems and provides a liquid stopper that is advantageous in terms of cost, has a one-part structure, and has high overflow prevention performance. [Means for Solving the Problems] That is, the liquid stopper of the present invention has a splash-proof cylinder with a slit on the side integrally provided at the bottom of the main body of the liquid stopper, and a slit shielding plate located 1.5 to 2.0 mm in front of the slit. The structure includes a partition plate inside the liquid faucet, which is arranged to divide the internal space of the liquid faucet into two chambers, leaving a gap that allows the internal space to be evacuated. [Function] Therefore, in the liquid stopper of the present invention, the electrolyte caused by vibration is shielded by the slit shielding plate, and hardly ever enters the liquid stopper body through the slit on the side of the splash-proof tube, and a small amount of electrolyte is Even if liquid enters the liquid stopper body, the liquid stopper internal partition plate that divides the inside into two can prevent the liquid from overflowing. Further, gas generated from inside the storage battery easily enters the liquid tap body through the gap between the slit on the side of the splash-proof cylinder and the slit shielding plate, and is then discharged to the outside. [Example] Hereinafter, the liquid stopper of the present invention will be explained using an example shown in FIGS. 1 and 2. In FIGS. 1 and 2, 1 is a liquid stopper main body, 2 is a splash-proof cylinder provided integrally at the bottom of the liquid stopper main body 1, and the splash-proof cylinder 2 has a slit 3 on the side. . Reference numeral 4 denotes a plate-shaped body integrally provided at the lower end of the side wall of the splash-proof tube 2 opposite to the side wall provided with the slit 3; the plate-shaped body 4 is integrally formed with the liquid faucet body 1 and the splash-proof tube 2 at the same time; Immediately after molding, as shown in FIG. 2, the splash-proof tube 2 hangs down from the lower end. This hanging plate-like body 4 is
As shown in the figure, it is bent at parts a, b, and c, and covers the lower end opening of the splash-proof tube 2, as well as the slit 3 on the side.
A slit shielding plate 6 is arranged on the front surface of the liquid faucet body 1, and a fitting part 5 is provided directly under the threaded part of the liquid faucet body 1.
A liquid stopper internal partition plate 7 is formed which is fitted into the liquid stopper body 1 and divides the liquid stopper internal space formed by the liquid stopper main body 1 and the splash-proof cylinder 2 into two chambers having air permeability. That is, the embodiment of the present invention has a structure in which the slit 3 on the side of the splash-proof cylinder 2 is not visible visually, and the liquid faucet main body 1 is
In addition to preventing large amounts of electrolyte from entering the interior,
By dividing the internal space of the liquid stopper, it is possible to prevent a small amount of electrolyte that has entered the liquid stopper body 1 from overflowing, thereby achieving a double overflow-proof effect. We were able to obtain sufficient spill prevention performance. Further, in the embodiment of the present invention, the plate-shaped body 4 is only slightly larger than the conventional one shown in FIG. 3, so the cost does not increase so much. The gap d between the slit shielding plate 6 on the side of the splash-proof cylinder 2 and the slit 3 on the side of the splash-proof cylinder 2 is suitably 1.5 to 2.0 mm. The material for molding the liquid stopper is synthetic resin such as polypropylene or polyethylene. Furthermore, the liquid stopper internal partition plate 7 may be inserted into either the liquid stopper main body 1 or the splash-proof tube 2 as long as it is above the upper end of the slit 3, and the state after insertion is horizontal as shown in the embodiment. It may be in any state, such as a state or a state in which it is tilted downward. Further, a notch or slit for forming a gas exhaust hole may be provided at the tip of the liquid stopper internal partition plate 7, and the tip may be brought into close contact with the inner wall of the splash-proof cylinder 2 or the like. Next, the liquid stopper of the present invention having the structure shown in Fig. 1 and the conventional liquid stopper having the structure shown in Fig. 3 were attached to the storage battery, and the state of liquid overflow was investigated by shaking the battery under various vibration conditions. The test results are shown in the table below.

[Table] ○...No overflow As is clear from the table above, it can be seen that the product of the present invention has superior overflow prevention performance compared to conventional products. [Effects of the Invention] As described above, the liquid stopper of the present invention can significantly improve the overflow prevention performance compared to the conventional one-part liquid stopper without causing a significant increase in cost.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing an embodiment of the storage battery liquid plug of the present invention, Fig. 2 is a side view showing the state of the embodiment of the invention shown in Fig. 1 immediately after molding, and Fig. 3 is a conventional FIG. 4 is a partially cutaway side view showing an example of a storage battery liquid stopper, and FIG. 4 is a side view showing the conventional example shown in FIG. 3 immediately after molding. DESCRIPTION OF SYMBOLS 1...Liquid stopper body, 2...Splash-proof cylinder, 3...Slit, 4...Plate-shaped body, 6...Slit shielding plate, 7...
...Liquid faucet internal partition plate.

Claims (1)

[Claims for Utility Model Registration] A storage battery liquid stopper having the following structure, in which a splash-proof tube with a slit on the side is integrally provided at the bottom of the liquid stopper body. (a) A slit shielding plate arranged at a position 1.5 to 2.0 mm in front of the slit (b) A partition plate inside the liquid stopper arranged to divide the internal space of the liquid stopper into two chambers, leaving a gap that allows exhaust.