JPS5812373Y2 - Sealing plug for ready-to-use storage batteries - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a sealing plug inserted into an exhaust hole of a liquid outlet plug for maintaining airtightness of a ready-to-use storage battery.

A conventional ready-to-use storage battery is a storage battery in which the electrode plates are dried in a charged state and an electrolytic solution is injected into the battery before assembly and use, so that a predetermined capacity can be secured without initial charging.

Therefore, during storage before use, it is necessary to keep the inside of the storage battery completely airtight so that the electrode plates will not come into contact with air or moisture, causing oxidation and loss of ready-to-use performance.
Therefore, in order to completely seal the exhaust hole of the liquid outlet plug that communicates between the inside and the outside of the storage battery, there is a method of sealing it by pasting adhesive tape on the exhaust hole, or a method of sealing the exhaust hole by attaching it to a connecting piece. Generally, a method is adopted in which the exhaust hole is tightly inserted to maintain airtightness.

As shown in Figs. 1 and 2, the conventional system uses a monoblock storage battery in which a liquid inlet plug 4 is screwed into a liquid inlet 3 provided in a lid 2 fixed to a battery case 1. In order to seal the exhaust hole 5 of the spout 4, a sealing plug I connected to a connecting piece 6 is tightly inserted into the exhaust hole 5 sequentially from one end of the liquid spout 4. Sealing plug I for airtight fitting into hole 5
requires precise dimensions and a relatively long form.

Therefore, it is difficult to fit into the exhaust hole 5, and if you try to forcefully insert it, it will come into close contact with the connecting piece 6, that is, the root 8.
Since there is a risk that the sealing body may break, careful work is required when inserting the closure, and if the sealing closure 1 has elasticity, it cannot be expected that the shoe will fit completely tightly.

In view of the above points, the present invention is an improvement on the latter method, and is a conical sealing plug with a larger diameter at the base of the ring, which is the place where it comes into close contact with the connecting piece made of thermoplastic synthetic resin. In order to easily fit into a small-diameter exhaust hole, the tip of the sealing plug that hangs down from the top of the sealing plug is formed into a conical shape, so that it can be easily fitted into the exhaust hole even when forcefully inserted into the exhaust hole, and is airtight. To provide a sealing plug that can be perfectly held and completely free from breakage even when it is forcefully inserted.

To explain the -fit of the present invention, 6I is a connecting piece in which flexible and elastic sealing plugs 7' made of thermoplastic synthetic resin are connected and arranged at equal intervals, and 8 is a connecting piece in which the sealing plugs 7' are connected. The base is tightly attached to 6' and has a conical shape,
It hangs down from the apex to form the main body of the sealing stopper 7', and has a pointed end 9 with a conical end.

Reference numeral 10 denotes a ventilation pipe that can pass through the exhaust hole 5 in the ceiling of the liquid outlet plug 4 and hangs down from the wall surface of the ceiling of the liquid outlet stopper 4.

11 is splash proof. The present invention has the structure as described above, and when the sealing plug 7' is tightly fitted into the monoblock storage battery, the connecting pieces 6' with the sealing plugs 7' connected and arranged at equal intervals are connected to the liquid port plug 4. The monoblock storage battery is placed above the exhaust hole 5, and is inserted by pressing one end of the battery sequentially.Since the base 8, which is the place where the sealing plug 7' is tightly attached, has a conical shape, the sealing plug 7' does not fit. Combined with the conical shape of the pointed end 90 of the sealing plug 7', it is easy to forcefully insert into the exhaust hole 5 while sliding into the opening of the exhaust hole 5, and the flexibility and elasticity of the sealing plug 7' combine with the flexibility and elasticity of the sealing plug 7'. It is easy to insert and can be completely tightly fitted.

Since the base part 8, which is the part to be tightened, has a conical shape, there is no risk of it breaking even if it is forcefully inserted, and since it is inserted in a wedge shape, there is no risk of it coming off easily even when the storage battery vibrates. There isn't.

As mentioned above, according to the present invention, the sealing condition is good and the ready-to-use performance is completely maintained, and there is no possibility of breakage when the casing is inserted or during storage, or the whole unit comes off due to vibration of the storage battery, etc. Dogs are of great practical value and cannot be feared.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the main parts showing an example of the liquid port plug in a conventional ready-to-use storage battery, Figure 2 is a perspective view showing how the sealing plug is attached and removed from the storage battery, and Figure 3 is the ready-to-use type according to the present invention. FIG. 2 is a sectional view of a main part of a liquid spout portion showing a state in which the storage battery sealing plug is used. 5 is an exhaust hole, 6 is a connecting piece, 7 is a sealing plug, and 8 is a base portion.

Claims (1)

[Scope of utility model registration request] A sealing plug for a ready-to-use storage battery, in which the base of the connecting piece made of thermoplastic synthetic resin is conical, and the tip of the sealing plug that hangs down from the top is formed into a conical shape.