JPH0136296Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid spout plug used in a bulk water replenishment device for storage batteries.

As shown in FIG. 1, this type of conventional liquid spout plug has a supplement that is interlocked with a float part 8' of a water stopper 11' which floats in response to the liquid level of an electrolytic solution 4' via a float support part 9'. A system has been adopted in which a water replenishment port 5' provided in a wall 6' is opened and closed in a direction substantially horizontal to the electrolytic solution surface using a water port opening/closing portion 10'. However, in this method, the water replenishment port 5' is placed on a wall 6' that is almost horizontal to the liquid level of the electrolytic solution 4'.
Since the refilling liquid flows into the storage battery from the refilling pipe 3', through the plug body 7', and the refilling port 5', it hits the top surface of the float part 8', causing the water stopper 11' to move up and down to fill the specified liquid. The drawback was that it was difficult to stop the rehydration solution at the same level. Furthermore, there was a problem in that the water pressure above the water stop body 11' acted in a direction opposite to the buoyancy of the float portion 8', making it difficult to achieve a sufficient water stop.

The present invention provides a storage battery equipped with a novel liquid spout which eliminates the above-mentioned drawbacks, and will be described below with reference to FIG. 2 showing one embodiment thereof. Reference numeral 1 denotes a storage battery case, and a liquid spout plug 2 is screwed onto the top surface of the case 1. That is, the liquid port plug 2 is integrated with a water replenishment pipe 3 that supplies rehydration liquid from outside the storage battery,
Furthermore, a stopper body 7 made of synthetic resin is provided with a wall 6 having a surface direction substantially perpendicular to the liquid level of the electrolytic solution 4 in the battery container 1 and provided with a refilling port 5, and a stopper body 7 disposed in the stopper main body 7. A synthetic resin or a foam material, or a combination of both, which has a float part 8 that responds to the electrolyte level and a water replenishment opening/closing part 10 that is connected to the float part 8 through a float support part 9 and opens and closes the water replenishment port 5. A water stop body 11 is provided.

Next, the principle of water stopping will be explained. First, when the liquid level of the electrolyte is low, the float part 8 of the water stopping body 11 is also lowered, and at the same time, the interlocking water replenishment opening/closing part 10 is also lowered. When rehydration is carried out in this state, the rehydration liquid supplied from outside the storage battery through the refilling pipe 3 passes through the plug body 7 and enters the storage battery through the gap between the refilling port 5 and the refilling port opening/closing part 10. . Since the wall 6 provided with the refilling port 5 is provided in a direction substantially perpendicular to the liquid level of the electrolytic solution 4, the refilling fluid enters the battery without hitting the float portion 8. Next, when the liquid level of the electrolytic solution 4 reaches the specified liquid level, the float part 8 floats to that position, so that the refilling port opening/closing part 10 interlocked with the float part 8 also rises and closes the refilling port 5. At this time, the contact point between the refilling port 5 and the refilling port opening/closing part 10 is such that even if there is a gap initially, the refilling port opening/closing part 10 is pressed against the refilling port 5 by the hydraulic pressure of the refilling liquid, so the contact point between the refilling port 5 and the refilling port opening/closing part 10 is changed. 〓 disappears, the rehydration solution stops flowing into the storage battery, and the rehydration work is completed. That is, when the water stops, the water replenishment opening/closing part 10 transfers the water pressure at the upper part to the water replenishment port 5.
Since the water is received in the direction in which it is about to close, its water-stopping performance is extremely excellent.

Next, the present invention will be explained with reference to FIG. 3 showing another embodiment. That is, in this embodiment, an electrolyte level indicator 12 is provided at the upper end of the water stop body 11a so that the maintenance person can detect the necessity of water refilling work and the completion of the water refilling work.
In addition to providing the instruction section 12a, for example, an AS
The plug body 7a is made of transparent resin such as resin.

As described above, the storage battery equipped with the liquid port plug according to the present invention is capable of stopping water at the specified liquid level because the rehydrating liquid does not hit the float part during refilling, and has an extremely excellent water stopping ability. Its practical value is great, as there is no risk of over-watering.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of the main part showing a storage battery equipped with a liquid inlet plug used in a conventional bulk water replenishment system, Fig. 2 is a cross-sectional view of the main part showing one embodiment of the present invention, and Fig. 3 is an alternative to the present invention. FIG. 2 is a cross-sectional view of a main part showing one embodiment of the present invention. 1...Battery container, 2...Liquid port plug, 3...Water supply pipe, 4
... Electrolyte, 5 ... Refilling port, 6 ... Wall, 7, 7a
... Tap body, 8 ... Float part, 9 ... Float support part, 10 ... Refilling port opening/closing part, 11, 11a...
...Water stop body, 12a... Electrolyte level indicator.

Claims (1)

[Claims for Utility Model Registration] 1. A liquid spout is used, which has a tap main body whose upper side communicates with a water replenishment pipe, and which has a float support part connected to a float part that responds to the electrolyte level within the plug main body. In the storage battery, a wall is provided within the plug body, the wall partitions the inside of the plug body in a plane direction substantially perpendicular to the electrolyte surface, and a water replenishment port is provided in the wall, and the water replenishment port is opened and closed. The water replenishment opening/closing part is arranged in one room partitioned by the wall, and the float support part is arranged in another room, and the water replenishment opening/closing part and the float support part are loosely connected to the water replenishment port. 1. A storage battery comprising: a liquid inlet plug which is connected to the refilling port and has a function of raising the refilling port opening/closing portion by raising the float portion to close the refilling port. 2. The storage battery according to claim 1 of the utility model registration, characterized in that it has an electrolyte level indicator at the tip of the float support.