CN2329111Y

CN2329111Y - Valve control sealed type seal pressure reducing valve for lead accumulator

Info

Publication number: CN2329111Y
Application number: CN 98227126
Authority: CN
Inventors: 顾青莲
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-18
Filing date: 1998-06-18
Publication date: 1999-07-14
Anticipated expiration: 2008-06-18

Abstract

The utility model relates to a valve control sealed type seal pressure reducing valve for lead accumulator, which belongs to the accumulator special components. The utility model comprises a valve body which is composed of a valve cover and a valve seat. The valve body is provided with an air exit hole and an air outlet; the lower opening of the air exit hole under the valve seat is provided with an acid filtering piece and a pressing piece. The upper opening of the air exit hole in the chamber of the valve body is provided with a circular ring rubber valve core, a spring and a press cap in turn, and the pressure of the spring is adjusted by a screw in the valve cover. The utility model has the advantages of reliable seal, sensitivity, no acid liquor spillage, no corrosion behavior to the spring and the valve core, convenient adjustment of the exhaust pressure and no ballooning and deformation phenomena of the casing of the accumulator.

Description

Valve-regulated sealed lead accumulator sealing pressure-reducing valve

The utility model relates to a kind of valve-regulated sealed lead accumulator sealing pressure-reducing valve, belongs to the storage battery special accessories.

Lead accumulator avoids under the air-proof condition that to press the too high known hermetically-sealed construction mode that causes the housing swelling to take place in causing be (see figure 1): the gas outlet in storage battery (16)--fluid injection seal (9) upper end big envelope-rubber bonnet (15) and cover plate (14) because the gas that produces in the charging process can't discharge, this hermetically-sealed construction mode is to utilize the elastic contractile force of rubber that gas outlet (9) are sealed, the sealing (promptly closing) of storage battery (16) and exhaust (promptly opening) function realizes by rubber cap (15), but the elastic contractile force size of rubber is difficult to control.When shrinking tension, when air pressure inside reaches certain value and should open, rubber cap (15) is not but opened, cause the distortion of storage battery generation bulging, otherwise, when elastic contractile force is too small, seal (9) is poorly sealed and cause leakage, rubber cap (15) is subjected to the acid mist gas attack and loose for a long time in addition, the convergent force that also will follow the string, and make phenomenon of leakage aggravation.

The purpose of this utility model is to avoid the above-mentioned weak point of prior art and provide a kind of lead accumulator to seal that sealing is reliable, sensitive, exhaust pressure is adjustable, do not have and overflow acid and do not have corrosion phenomenon and valve-regulated sealed lead accumulator sealing pressure-reducing valve that housing can the bulging distortion.

The purpose of this utility model realizes by following technical proposal.

The utility model includes the valve body of valve gap and valve seat composition, valve seat is provided with the exhaust outlet with recess, in the steam vent recess, have filter acid film and compressing tablet, filter acid film as elimination in the battery charging process because of interior pressure increases the acid solution of overflowing in the acid mist gas, compressing tablet is used for the fixing of filter acid film.On the valve seat upper periphery, be provided with recess and constitute venthole, work to discharge the gas reduction accumulator internal pressure of effusion with through hole in the valve gap.Spool with annulus is set on the inner vent of valve body chamber, plays the sealing exhaust outlet.At spool upper end socket one spring, the upper end of spring and gland socket with flange, valve gap is provided with the adjustment screw in screw and the screw, and adjustment screw is as the thrust of regulating spring.

The utility model compared with prior art has following advantage:

1, the utility model adopts the liquid injection port of seal spool and unlatching storage battery.In battery charging process, its air pressure inside rises when surpassing certain value, and spool can be opened effectively, makes its internal drop low thereby discharge remaining acid mist gas.When storage battery air pressure was reduced to certain value, spool was closed under spring action effectively, thereby storage battery is sealed reliably, had avoided the phenomenon of leakage, just as the control action of unidirectional valve, realized the valve control control of the sealing decompression of storage battery.

2, the utility model nationality helps the pressure of spring to realize sealing sealing, not only reliably but also sensitive.

3, the utility model can be transferred to required exhaust pressure easily with adjustment screw regulating spring pressure.

4, on the steam vent of the present utility model filter acid film is set, not had acid solution after it filters in the emergent gas exists, thereby spring and spool all there is not corrosiveness, like this, both guaranteed the reliability of sealing, guaranteed again that storage battery can discharge residual gas effectively and the bulging distortion of housing does not take place.

The explanation of accompanying drawing drawing:

Fig. 1 is common storage battery rubber hat type sealed structural representation.

Fig. 2 is a structural representation of the present utility model.

Following the utility model will be commented embodiment (in conjunction with the accompanying drawings).

The utility model shown in Figure 2 includes the valve body of being made up of valve gap 1 and valve seat 6.Valve seat 6 is provided with the steam vent 9 with recess 10, has ceramic filter acid film 7 and compressing tablet 8 in steam vent recess 10.On valve seat 6 upper peripheries, be provided with recess 11 and constitute ventholes 13, a rubber spool 5 with rubber ring 5-1 is set on inner vent 9 apertures, valve body chamber with through hole 12 in the valve gap 1.At rubber spool 5 upper end sockets one spring 4, the upper end of this spring 4 and has gland 3 sockets of flange 3-1, and valve gap 1 is provided with the adjustment screw 2 among screw 1-1 and the screw 1-1.

When use implementing, press in the battery charging process and increase and when the effusion of acid mist gas was arranged, the acid solution in the gas was filtered by filter acid film 7, the acid solution in the emergent gas is not had raffinate by elimination and overflows.When escaping gas pressure surpassed spring 4 and acts on thrust on the spool 5, spool 5 will be by air pressure jack-up, and this moment, gas was upwards overflowed from venthole 13, thereby reached the effect that reduces accumulator internal pressure.When accumulator internal pressure is reduced to thrust less than spring 4, spool 5 again by spring 4 compress from and with steam vent 9 sealings.

Claims

1, a kind of valve-regulated sealed lead accumulator sealing pressure-reducing valve, include the valve body of forming by valve gap (1) and valve seat (6), it is characterized in that valve seat (6) is provided with the have recess steam vent (9) of (10), in steam vent recess (10), have filter acid film (7) and compressing tablet (8), on valve seat (6) upper periphery, be provided with recess (11) and with valve gap (1) in through hole (12) constitute venthole (13), spool (5) with annulus (5-1) is set on valve body chamber inner vent (9) aperture, at described spool (5) upper end socket one spring (4), the upper end and one of spring (4) has gland (3) socket of flange (3-1), and valve gap (1) is provided with the adjustment screw (2) in screw (1-1) and the screw (1-1).