JPH0136298Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a storage battery equipped with a liquid port plug for bulk water replenishment.

The conventional liquid outlet plug of this type of storage battery is an opening/closing part that is integrated with the float part of the float body, which floats in response to the level of the electrolyte solution, via a float support part, and has a surface that is almost horizontal to the electrolyte solution level. A system was adopted in which water replenishment ports installed on the walls in both directions were opened and closed. However, in this method, the refilling port is installed on a wall that is almost horizontal to the electrolyte surface, so the refilling fluid that flows from the refilling pipe into the storage battery through the plug body hits the top surface of the float, causing the float body to It has the disadvantage that it is difficult to move up and down and stop the rehydration solution at a specified level. Moreover, there was a problem in that the water pressure applied to the opening/closing part acted in a direction opposite to the buoyancy of the float part, making it difficult to shut off the water sufficiently.

For this reason, the inventor of the present invention previously proposed that ``a tap body equipped with a refilling port installed in a wall having a surface direction almost perpendicular to the electrolyte surface, and a float part that opens and closes the refilling port in response to the electrolyte level. A storage battery comprising a liquid inlet stopper equipped with a float body having a refilling inlet opening/closing part has been proposed. However, with this type of storage battery liquid port plug, if the float body is to respond to the entire electrolyte level, that is, if the float body is provided with an electrolyte level indicator, the float body In order to respond to the entire electrolyte level, a long refilling port is required, and the refilling port opening/closing part needs to be very large, so that the refilling port opening/closing part must be large. The problem is that the water opening/closing part is strongly pressed against the wall by the pressure of refilling water, making it difficult to move the float body smoothly.

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. 1 showing one embodiment thereof. Reference numeral 1 denotes a storage battery case, and battery elements are housed inside the case so as to be immersed in an electrolytic solution 2. Further, a liquid spout plug 3 is screwed onto the top surface of the battery case 1 via a gasket 4. The liquid port stopper 3 includes a stopper body 5, a float body 6, and a refilling port opening/closing body 7. That is, the stopper main body 5 is made of a transparent resin such as AS resin, and is integrated with a water replenishment pipe 8 that supplies rehydration liquid from outside the storage battery. A water replenishment chamber 11 is provided which has a wall 10 in a plane direction substantially perpendicular to the liquid level. The float body 6 is made of synthetic resin, foamed material, or a combination of the two, and includes a float part 12 that responds to the electrolyte level;
A float support part 13 that extends upward and is disposed in a loose manner with respect to the plug body 5, a protrusion part 14 provided in the middle of the float support part 13, and a protrusion part 14 that projects into the plug body 5 at the upper end of the float support part 13. An electrolyte level indicator 15 is provided. The refilling port opening/closing body 7 has an interlocking portion 16 loosely fitted to the float support portion 13 of the float body 6 and an opening/closing portion 17 arranged at the refilling port 9. When the liquid level becomes close to the specified liquid level and the float body 6 rises and comes into contact with the protruding part 14, the opening/closing part 17 becomes linked to the movement of the float body 6, and the opening/closing part 17 closes to the replenishment port 9. This moves in the direction of blocking the water replenishment port 9, and finally the water replenishment port 9 is closed, and water replenishment is stopped. In addition, when the water replenishment is completed and the water pressure applied to the opening/closing part 17 is released, the water refilling port opening/closing body 7 can be opened again.
And the float body 6 will move smoothly. Note that by observing the position of the electrolyte level indicator 15 at the upper end of the float support part 13 through the plug body 9, it is possible to know the necessity of water replenishment and the completion of water replenishment. Further, 18 is an exhaust port.

As described above, the present invention includes a wall 10 provided with a water replenishment port 9.
is provided in a direction substantially perpendicular to the liquid level of the electrolytic solution 2, so that the rehydration solution enters the battery without hitting the float portion 12. In addition, with the present invention, the moving distance of the opening/closing part 17 can be reduced to about several mm, and the water replenishment port 9 and the opening/closing part 17 can be made smaller accordingly, so unnecessary water pressure is applied to the opening/closing part 17. is never added. Furthermore, since the float body 6 and the water replenishment port opening/closing body 7 are separate bodies, the float body 6 is not hindered by the water pressure applied to the water replenishment port opening/closing body 7, and smoothly responds to the electrolyte level.

As described above, the storage battery equipped with the liquid spout according to the present invention has great practical value.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention. 1...Battery container, 2...Electrolyte, 3...Liquid spout, 4
...Putskin, 5...Blug body, 6...Float body, 7...Water replenishment opening/closing body, 8...Water refill pipe, 9...
Refilling port, 10... Wall, 11... Refilling room, 12...
Float part, 13... Float support part, 14...
Projection part, 15... Electrolyte level indicating part, 16... Interlocking part, 17... Opening/closing part, 18... Exhaust port.

Claims (1)

[Scope of utility model registration request] In a storage battery in which a stopper body is a liquid inlet stopper, the stopper body is composed of a refill chamber whose upper part communicates with a refill pipe, and an electrolyte level indicator equipped with a float part that responds to the electrolyte level. and a chamber having an electrolyte level indicator, the wall being partitioned in a plane direction substantially perpendicular to the electrolyte level, and a float support part extending upward from the float part and connected to the electrolyte level indicator. is disposed loosely through the stopper body and is loosely fitted into an interlocking part of a water filler opening/closing body provided on the wall for opening and closing the water filler hole, and a protruding part provided on the float support part allows the float body to rise. A storage battery characterized by comprising a liquid inlet plug having a function of raising the refilling port opening/closing body by touching the interlocking part and closing the refilling port.