JP3116004U - Jig for tightening the liquid port plug of a storage battery - Google Patents

Abstract

[PROBLEMS] To improve the accuracy of engagement between an engaging claw and a liquid spout, to prevent problems caused by oblique tightening, and to tighten a liquid spigot with a simple and simple structure. Provide attachment jigs.
A jig for tightening a liquid port plug of a storage battery for tightening a liquid port plug having a large number of radial ribs on an upper surface of the injection hole of the storage battery. And a plurality of engaging claws that are integrally attached to the mounting plate and engage between the radial ribs on the upper surface of the liquid spigot, and the mounting plate. A jig for tightening a liquid mouth plug of a storage battery, comprising a ring body surrounding a joint claw and integrally attached and surrounding an upper side surface of the liquid mouth stopper.
[Selection] Figure 1

Description

The present invention relates to a jig for tightening a liquid port plug of a storage battery.

The jig for tightening the liquid port plug is attached to a plug tightening machine, for example, an electric screwdriver, and rotates to tighten the liquid port plug to the liquid injection port of the storage battery.
In particular, these jigs for screwing and tightening a liquid spigot having a large number of radial ribs on the upper surface to a liquid injection port of a storage battery have a structure as shown in FIGS.
FIG. 5 is a side view, and a stepped columnar fitting portion 12 which is attached by engaging with a stopper is protruded and formed integrally on the upper surface of the disk-shaped mounting plate 11, and is engaged on the lower surface thereof. The claw 13 is integrally formed. The shape of the engaging claw 13 is substantially rectangular, and an inclined surface 13a is formed at the tip. As shown in the bottom view of FIG. 6, the engagement claws 13 are integrally formed on the peripheral edge of the mounting plate 11 at equal intervals.

And the fastening operation | work of the liquid stopper to the liquid inlet of a storage battery is performed as follows.
That is, the liquid stopper shown in FIG. 7 and FIG. 8 is supplied to the liquid injection port opened in the lid of the storage battery. As shown in the side view of FIG. 7, the liquid spigot 2 has a knob portion 21 at the top, a screw portion 22 at the center, and a cylindrical portion 23 at the bottom, and has a cylindrical shape as a whole. As shown in the top view of FIG. 8, the upper knob portion 21 is formed by forming a large cylindrical portion 212 at the center of the circular flange portion 211 and forming a large number of radial ribs 213 on the outer peripheral side surface thereof. In the drawing, 214 is an exhaust hole drilled in the upper surface of the cylindrical portion 212, 231 is an exhaust slit formed in the cylindrical portion 23, and 3 is a packing inserted into the screw portion.

These liquid plugs are supplied to the injection port of the storage battery through the lower cylindrical portion, and in this state or after being temporarily tightened by hand by an operator, the liquid plug plugs attached to the electric screwdriver are tightened. The final tightening was performed with a predetermined torque using an attaching jig. However, in such a jig, the engaging claw cannot be engaged with the rib formed radially on the upper surface of the liquid stopper, and the stopper cannot be tightened, or the liquid mouth stopper is forcibly tightened in an oblique state. There were problems such as tightening.

In order to solve this problem, a device for tightening a liquid-battery plug of a storage battery that has radial ribs on the upper surface and that tightens a liquid-port plug larger than the width of the upper surface of the rib to the liquid-injection port of the storage battery. In the above, the rotating shaft and the liquid stopper are fitted with a guide tube, and a rotating body and a disc fitted and arranged on the guide tube. The rotating shaft and the rotating tube are interlocked and freely movable up and down. And the rotating body has a plurality of engaging claws arranged and contacted in a circular shape from the bottom plate, and the disk has a plurality of grooves on the periphery thereof and is circularly contacted and contacted from the lower surface thereof. It has a plurality of guide claws, and the liquid spigot fastening device first brings the guide claws into contact with the liquid spigot, then engages the engaging claws with the ribs, and tightens the plugs by rotating them. An apparatus has been proposed and put into practical use (Patent Document 1).

JP-A-57-168466

However, the device described in Patent Document 1 has a complicated and large structure. Further, this device must be replaced every time the size of the liquid spigot or the number of ribs changes depending on the product type. There are problems such as troublesome replacement work.

Under such a background, the engagement claw and the liquid spigot can be accurately engaged with each other, there is no problem caused by slanting, and the liquid spigot tightening jig is small and the structure is simple. It would be desirable to provide a plug fastening jig.

The present invention relates to a lead-acid battery liquid-port plug fastening jig for fastening a liquid-plug with a rib on the upper surface to a liquid-injection port of a lead-acid battery, wherein the liquid-port plug fastening jig is a plug fastening machine. And a plurality of engaging claws that are integrally attached to the mounting plate and engage between the radial ribs on the upper surface of the liquid spigot, and the mounting plate And a ring body that surrounds the engaging claw and is integrally attached to surround the upper side surface of the liquid spigot.

In addition, the engaging claws of the jig have an interval that allows a slight deviation from the rib of the liquid stopper in the width direction and the length direction.

The number of engaging claws of the jig is the same as the number of ribs provided on the liquid spigot.

In the present invention, the shape of the jig, in particular, a plurality of engaging claws and a ring body that is integrally attached surrounding the engaging claw and surrounds the upper side surface of the liquid port plug, the liquid port plug is connected to the injection port of the battery case lid. Even when there is a slight inclination when supplied through insertion, the battery case and the liquid spigot can be securely screwed and tightened, and the problems caused by the diagonal tightening can be greatly reduced. Further, by integrally forming the engaging claw and the ring body, the structure of the jig for the liquid spigot can be simplified and reduced in size.

  Embodiments of the present invention will be described below with reference to FIGS. 1 is a sectional view of a jig showing an embodiment of the present invention, FIG. 2 is a bottom view of the jig, and FIG. 3 is a top view of the jig. In addition, the same code | symbol shows the same component.

As shown in FIG. 1, the fastening tool 1 for a liquid spigot according to the present invention is provided with an attachment plate 11, a fitting portion 12, and an engaging claw 13 as before. According to the present invention, the ring body 14 is integrally attached to the fastening jig, which is different from the conventional one. The jig 1 is formed by cutting a portion other than the ring body 14 formed on the outermost periphery by cutting, and then inserting the ring body 14 formed in advance into the outer periphery of the mounting plate 11 and welding them together. It is an integrated one.

On the upper surface of the mounting plate 11, a concave groove is formed in the upper narrow-diameter portion as a portion to be fitted to the tip of a stopper (not shown), and the lower portion is a fitting portion having a substantially cylindrical thick portion. 12 is formed in the same manner as in the prior art. This fitting portion is inserted and fitted into the recess receiving portion of the stopper, and the jig is attached in a replaceable manner.

As shown in the bottom view of FIG. 2, a plurality of engaging claws 13 that are arranged and protruded along the outer periphery of the mounting plate 11 are provided on the lower surface of the mounting plate 11 at equal intervals. The engaging claw 13 is inserted between the ribs on the upper surface of the liquid stopper and is engaged with the liquid stopper.

In the present invention, the ring body 14 is further welded to the outer periphery of the mounting plate 11 so as to surround the engaging claw 13 and the mounting plate 11 and the ring body 14 are partially welded as shown in the top view of FIG. Is attached.

The attachment part 11, the fitting part 12, and the engagement nail | claw 13 of the jig 1 shown in FIGS. 1-3 were manufactured by cutting. These are made of stainless steel. The attachment portion 11 was circular, and a cylindrical fitting portion 12 was formed on the upper surface thereof. The fitting portion 12 includes a large-diameter portion 121 and a small-diameter portion 122 above the large-diameter portion, and flat portions 123 are formed on both side surfaces of the large-diameter portion. Processed into a shape.

An engaging claw 13 is formed on the lower surface of the mounting plate 11 along the outer peripheral side thereof. The number of the engaging claws 13 formed corresponds to the eight inter-rib recesses formed by the eight radial ribs 213 arranged at equal intervals on the upper surface of the liquid spigot 2 shown in FIGS. The cross-section was approximately triangular in accordance with the shape of the recess between the ribs, formed at equal intervals, and the interval between which the ribs 213 of the liquid spout 2 were inserted. The state in which the rib 213 of the liquid spigot 2 is inserted between the engaging claws 13 is shown in FIG. 4, and the interval between the adjacent engaging claws 13 is slightly larger than the thickness of the rib 213 and allows the deviation. It was. A concave groove 111 was formed in the center of the lower surface of the mounting plate 11. This concave portion is for preventing the upper end of the cylindrical portion 212 protruding above the liquid spigot 2 shown in FIG. 8 from coming into contact with the mounting plate 11. As a result, the jig 1 and the liquid spigot 2 are configured so that the upper end of the rib 213 of the liquid spigot 2 and the lower surface of the mounting plate 11 of the jig 1, or the lower end of the engaging claw 13 of the jig 1 and the circular flange 211 of the liquid spigot 2. The upper surface of each comes into contact with each other.

Further, a separately manufactured stainless steel hollow circular ring body 14 is partially welded to the outer periphery of the mounting plate 11 (a surrounded by a dotted line indicates a welded portion), attached, and engaged with the jig 1. The nail 13 is surrounded.

On the other hand, a stopper (not shown) is composed of an electric screwdriver, a universal shaft connected to the rotating shaft of the electric screwdriver, and an attachment portion attached to the tip of the shaft so as to be able to advance and retreat by a spring. The attachment portion is formed with a recess receiving portion formed substantially in the same shape as the outer shape of the fitting portion 12 of the jig 1, and the jig 1 manufactured as described above is fitted with an O-ring in the groove 111 of the fitting portion 12. The fitting part 12 of the jig 1 is fixed to the recessed part receiving part of the stopper by the O-ring by being firmly inserted into the receiving part, and the jig 1 is attached to the stopper.

Then, the liquid stopper is supplied to the liquid injection port opened in the lid of the storage battery, and the jig rotated together with the electric driver is lowered with respect to the storage battery that has moved downward of the electric driver, and the ring of the jig The body surrounds the upper side surface of the liquid spigot, that is, the outside of the many formed radial ribs, and the engaging claw and the liquid spigot rib engage to rotate the liquid spigot to inject the liquid spigot. It is screwed into the mouth and tightened with a predetermined torque.

At this time, even if the liquid spout is supplied to the liquid injection port with a slight inclination, it is returned to the upright state by the ring body of the rotating jig 1 and the engaging claws and ribs are engaged correctly. Screwed and tightened. In other words, the engaging claw of the jig hits any rib of the inclined liquid plug, and the liquid plug is rotated. At this time, the rotated liquid plug rotates while contacting the inner wall of the ring body. Therefore, it will be in an upright state, eventually all the engaging claws will be inserted between all the ribs and engaged with all the ribs and screwed and tightened properly, forcibly oblique like a conventional jig without a ring body It is not tightened in the state.

Furthermore, by setting an interval that allows a slight deviation in the width of the rib, the engaging claw that rotates when the engaging claw engages with the rib does not violently hit the rib, and the liquid spout can jump off. Disappear.

Further, by making the engaging claw 11 the same as the number of ribs provided in the liquid spout 2, the engagement can be ensured.

(Comparative example)
As in the embodiment, a liquid spigot is used using a conventional jig (having four engaging claws and a narrow blade width) that does not include the ring body shown in FIG. 5 (side view) and FIG. 6 (bottom view). Was screwed to the battery case lid.

With respect to 33 6-cell monoblock type lead-acid batteries (the number of liquid stoppers to be tightened is 198), the screwing trouble of the liquid stopper was confirmed using the jig of the embodiment of the present invention and the conventional jig. When the jig of the present invention was used, there was nothing that caused a screwing failure of the liquid spigot. On the other hand, when conventional jigs were used, there were 4 of 198 screwing failures, and all of them were obliquely tightened.

From the above results, it was possible to reliably screw the liquid spigot by using the inventive jig, and to reduce the problems caused by the oblique tightening.

Sectional drawing of the jig | tool which shows one Embodiment of this invention. The bottom view of the jig | tool which shows one Embodiment of this invention. The top view of the jig | tool which shows one Embodiment of this invention. The figure which shows the state by which the rib was inserted between the engaging claws. The side view of the conventional jig | tool. The bottom view of the conventional jig | tool. The side view of a liquid spout. The top view of a liquid spout.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Jig 11 Mounting plate 12 Insertion part 13 Engagement claw 14 Ring body 2 Liquid stopper 21 Knob part 213 Rib 22 Screw part

Claims (3)

In a storage battery liquid port plug fastening jig for tightening a liquid port plug having a plurality of radial ribs on an upper surface thereof to a liquid injection port of the storage battery, the liquid port plug tightening jig engages with a plug tightening machine. A mounting plate to which the fitting portion is attached, a plurality of engaging claws that are integrally attached to the mounting plate and engage between the radial ribs on the upper surface of the liquid spigot, and surround the engaging claws on the mounting plate And a ring plug fastening jig for a storage battery, comprising a ring body attached integrally and surrounding an upper side surface of the liquid plug. 2. The liquid for a storage battery according to claim 1, wherein the engaging claw of the jig for tightening the liquid spigot has an interval allowing a slight deviation from the rib of the liquid spigot in the width direction and the length direction. Jig for tightening plugs. 3. A storage battery liquid port according to claim 1, wherein the number of engaging claws of the liquid port plug fastening jig is the same as the number of ribs provided on the liquid port plug. Jig for stopper tightening.