WO2021079525A1 - Water refill plug - Google Patents

Abstract

A water refill plug for a storage battery includes a body portion having a main surface located outside the storage battery, and a float attached to the body portion. The body portion includes: a valve chamber provided inside the body portion; a water supply port that communicates with the outside of the body portion and the valve chamber; a valve seat that is provided on the main surface and communicates with the outside of the body portion and the valve chamber; an outflow port that is provided on the main surface at a distance from the valve chamber and the valve seat and penetrates the body portion; and a wall portion that is erected from the main surface and includes a first side surface extending from the outflow port toward the valve seat, the float has a floating member that moves according to the liquid level of an electrolytic solution stored in the storage battery, and a valve that is located in the valve chamber and that opens and closes the valve seat in conjunction with the floating member, and both the valve seat and the outflow port are located on one side of the first side surface in the crossing direction intersecting the first side surface when viewed from the erection direction of the wall portion.

Description

Water faucet

The present invention relates to a refill plug, and particularly to a refill plug for a storage battery.

For a type of battery such as a lead-acid battery, it is necessary to replenish the electrolyte on a regular basis. In such a storage battery, a water tap for replenishing purified water or the like is provided. The following Patent Document 1 discloses a refill plug which is arranged downstream of a water supply port and has a valve chamber provided with a first valve and a second valve. In this water faucet, each of the first valve and the second valve has a valve body and a drain port, and the closing timing of each drain port is deviated.

Japanese Patent No. 6024668

By the way, in order to shorten the time required for refilling the storage battery, it is required to increase the amount of water supplied per unit time. In this case, since the water pressure in the refill faucet rises, water may flow out of the intended flow path in the refill faucet. This causes problems such as water leakage to the outside of the faucet.

An object of one aspect of the present invention is to provide a refilling faucet capable of suppressing defects during refilling.

The water faucet for a storage battery according to one aspect of the present invention includes a main body portion having a main surface located outside the storage battery when mounted on the storage battery, and a float mounted on the main body portion. The main body includes a valve chamber provided inside the main body, a water supply port that communicates with the outside of the main body and the valve chamber, and a valve seat provided on the main surface that communicates with the outside of the main body and the valve chamber. A wall portion that includes an outlet that is provided on the surface and is separated from the valve chamber and the valve seat and penetrates the main body, and a first side surface that stands upright from the main surface and extends from the outlet toward the valve seat. And have. The float has a floating member that is linked to the liquid level of the electrolytic solution stored in the storage battery, and a valve that is located in the valve chamber and opens and closes the valve seat in conjunction with the floating member. Seen from the direction, both the valve seat and the outlet are located on one side of the first side surface in the crossing direction intersecting the first side surface.

In this refill faucet, the water supplied from the water supply port to the valve chamber reaches the main surface of the main body through the valve seat in the open state. Then, when the water flowing on the main surface reaches the outlet, the water is supplied into the storage battery. Here, the main surface is provided with a wall portion that stands up from the main body portion, and the valve seat and the outlet are located on one side of the first side surface of the wall portion in the crossing direction. Therefore, the water that has reached the first side surface of the wall portion after reaching the main surface of the main body portion from the valve seat tends to flow toward the outflow port along the first side surface. Therefore, it becomes difficult for water to flow other than the intended flow path on the main surface of the main body. Therefore, by using the water replenishing plug, it is possible to suppress a defect at the time of refilling water.

The main body is provided on the main surface and is separated from the valve seat and the outlet, and is located on the opposite side of the outlet via the first through hole that penetrates the main body and the valve seat when viewed from the vertical direction. It has a side wall and a protruding portion having a top surface that erects from the main surface, and the float is connected to the floating member and extends in the erecting direction, and has a first shaft through which the first through hole is inserted. , It has a second shaft that connects to the valve and extends in the vertical direction to insert the valve seat, and a connecting part that connects the first and second shafts, and a part of the connecting part is mainly It may be located between the wall and the protrusion on the surface. In this case, since the movement of the float can be regulated by the wall portion and the protruding portion, the functions of the floating member and the valve included in the float can be satisfactorily exhibited.

The main surface of the wall portion is divided into a plurality of regions, and a valve seat, an outlet, and a first through hole may be provided in the first region included in the plurality of regions. In this case, the water that reaches the first region of the main surface through the valve seat is retained in the first region by the wall portion. Therefore, it is possible to satisfactorily suppress the flow of water to areas other than the intended region on the main surface of the main body.

The main body portion is provided in a second region included in a plurality of regions, has a second through hole through which an inspection device for inspecting the inside of the storage battery is inserted, and has a first through hole and a second through hole in the wall portion. A notch or an opening may be provided in the portion located between the two. In this case, the water overflowing from the first region tends to overflow from the notch or opening of the wall portion. Water that overflows from the notch or opening into the second region flows into the storage battery through the second through hole. By providing a notch or an opening at a predetermined position on the wall portion in this way, water that has flowed out of the intended flow path can also be supplied into the storage battery. In addition, the main surface may have an inclined portion within the second region that is located between the notch or opening and the second through hole and that descends toward the second through hole. In this case, the water overflowing in the second region easily reaches the second through hole through the inclined portion.

The wall portion has a first portion having a first side surface extending linearly when viewed from the erection direction, and a second portion for integrating the first portion and the protruding portion, and the second portion stands upright. It may project to the other side in the crossing direction when viewed from the installation direction. In this case, since the range of the first region can be expanded, the outflow of water from the first region to an unintended region can be suppressed.

The main body has a second through hole provided on the main surface and through which an inspection device for inspecting the inside of the storage battery is inserted, and the second through hole is located on the opposite side of the first side surface in the crossing direction. May be good.

The wall portion has a second side surface located on the opposite side of the first side surface in the crossing direction, and the second side surface has a groove continuous with the second through hole and extending in the vertical direction of the wall portion. You may. In this case, the inspection device can be easily attached to the second through hole.

The first side surface has a first end located on the main surface side in the erection direction and a second end located on the opposite side of the first end in the erection direction, and is inclined with respect to the erection direction. The first end may be located outside the second end when viewed from the erection direction. In this case, since the pressure resistance of the wall portion in the crossing direction is improved, damage to the wall portion due to water pressure can be suppressed.

The main body may have a peripheral wall that surrounds the edge of the main surface and stands upright. In this case, the outflow of water from the main surface to the outside of the refill faucet can be satisfactorily suppressed.

The refill faucet may be arranged in contact with the top surface of the wall portion and may further include a cover portion located on the valve seat. In this case, it is possible to satisfactorily prevent the water reaching the main surface of the main body from the valve seat from flowing out to the outside of the refill faucet.

The main body is integrated with the wall and may have a cover located on the valve seat. In this case, it is possible to satisfactorily prevent the water reaching the main surface of the main body from the valve seat from flowing out to the outside of the refill faucet.

According to one aspect of the present invention, it is possible to provide a refill faucet capable of suppressing defects during refilling.

FIG. 1 is a side view of the refilling faucet according to the present embodiment. FIG. 2 is a perspective view showing a main part of the refill faucet. FIG. 3 is a plan view showing a main part of the refill faucet. FIG. 4 is a plan view showing the main body portion. FIG. 5 is a cross-sectional view taken along the line VV of FIG. FIG. 6 is an exploded view of the main body. FIG. 7 is a perspective view of the first structure. FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. FIG. 9 is a cross-sectional view taken along the line IX-IX of FIG. FIG. 10 is a perspective view showing the back side of the first structure. FIG. 11 is a diagram showing a main part of the second structure. FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG. FIG. 13 is a diagram showing a float. FIG. 14A is a diagram showing a valve seat in an open state. FIG. 14B is a diagram showing a valve seat in a closed state.

Hereinafter, embodiments according to one aspect of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals will be used for the same elements or elements having the same function, and duplicate description will be omitted.

FIG. 1 is a side view of the refill faucet according to the present embodiment. FIG. 2 is a perspective view showing a main part of the refill faucet, and FIG. 3 is a plan view showing the main part of the refill faucet. In FIGS. 2 and 3, the float 4 described later is omitted. The refill plug 1 is a member for a storage battery for supplying a liquid such as water contained in the storage battery in just proportion, and is attached to a liquid port 100B provided in a battery tank 100A (see FIGS. 14A and 14B) of the storage battery. Will be done. The refill plug 1 also exhibits a function of preventing backflow or the like when the liquid is supplied. Although not shown, the refill plug 1 is attached to the liquid port 100B via a sealing material such as packing from the viewpoint of preventing liquid leakage between the refill plug 1 and the liquid port 100B. The storage battery to which the refill plug 1 is mounted is a liquid storage battery such as a lead storage battery.

The refill faucet 1 includes a main body portion 2, a cover portion 3 attached to the main body portion 2, and a float 4 attached to the main body portion 2. In the following, the direction in which the floating member 51 of the float 4 moves in conjunction with the liquid level of the electrolytic solution L housed in the electric tank 100A is defined as the direction D1, and the intersecting direction intersecting the direction D1 in a plan view is the direction D2. And direction D3. Further, in the following, viewing from the direction D1 corresponds to a plan view. In the present embodiment, the directions D2 and the direction D3 are orthogonal to each other, but the present invention is not limited to this.

(Main body)
Next, in addition to FIGS. 1 to 3, the structure of the main body 2 will be described in detail with reference to FIGS. 4 and 5. FIG. 4 is a plan view showing the main body portion. FIG. 5 is a cross-sectional view taken along the line VV of FIG. The main body 2 is a portion through which the liquid supplied to the storage battery flows and is a portion mounted on the storage battery. That is, the main body 2 is a portion that constitutes a flow path of the liquid. In the present embodiment, the main body 2 is a combined structure as described later, but the present invention is not limited to this.

The main body 2 has a main surface 2a located outside the storage battery when the refill plug 1 is mounted on the storage battery. Further, the main body 2 includes a peripheral wall 11 surrounding the edge of the main surface 2a, a protruding portion 12 projecting along the direction D1, a water supply port 13 exposed from the cover portion 3, and an inside provided inside the main body 2. The space 14, the valve seat 15 connected to the internal space 14, the outlet 16 separated from the internal space 14 and the valve seat 15, the wall portion 17 erected from the main surface 2a, the valve seat 15 and the outlet 16. It has a first through hole 18 that is separated from the above, and a second through hole (inspection through hole) 19 that is located on the opposite side of the outlet 16 via the wall portion 17 in a plan view. When the refill plug 1 provided with the main body 2 is used, the liquid supplied from the water supply port 13 to the refill plug 1 normally passes through the internal space 14, the valve seat 15, and the outflow port 16 in this order and is supplied into the storage battery. Will be done. In the following, the liquid that passes through the water supply port 13, the internal space 14, the valve seat 15, and the outlet 16 in this order and is supplied into the storage battery has passed through the intended flow path FL composed of the main body 2. And. A detailed description of the flow path FL will be described later.

The peripheral wall 11 is a portion that prevents or suppresses leakage of the liquid located on the main surface 2a of the main body 2 to the outside, and is erected in an annular shape along the direction D1. The peripheral wall 11 includes an annular base portion 11a, a substantially semicircular first peripheral wall portion 11b that can be accommodated in the cover portion 3, a second peripheral wall portion 11c extending along the edge of the cover portion 3, and a cover portion. It has a cylindrical portion 11d that is exposed from 3 and surrounds the water supply port 13 in a plan view. In a plan view, a part of the first peripheral wall portion 11b, the second peripheral wall portion 11c, and the cylindrical portion 11d are located on one side (right side of the paper surface in FIG. 4) of the main body portion 2 in the direction D3. Most of the first peripheral wall portion 11b is located on the opposite side (left side of the paper surface in FIG. 4) from the center in the direction D3, but is not limited to this. The base portion 11a, the first peripheral wall portion 11b, the second peripheral wall portion 11c, and the cylindrical portion 11d are integrally molded.

The base portion 11a is an annular portion provided along the edge of the main surface 2a of the main body portion 2, and serves as a base (base) for the first peripheral wall portion 11b, the second peripheral wall portion 11c, and the cylindrical portion 11d. A part of the base portion 11a is a part of a portion of the main surface 2a that defines the flow path FL. In a plan view, the protrusion 12, the valve seat 15, the outlet 16, the wall 17, the first through hole 18, and the second through hole 19 are located inside the base portion 11a.

Each of the first peripheral wall portion 11b and the second peripheral wall portion 11c is a portion that is separated from the flow path FL and prevents or suppresses leakage of the liquid located on the main surface 2a to the outside. The first peripheral wall portion 11b is joined to the second peripheral wall portion 11c on one side in the direction D3 without a gap, but the present invention is not limited to this. The first peripheral wall portion 11b may be joined to the second peripheral wall portion 11c without a gap on the other side in the direction D3. The second peripheral wall portion 11c connects the first peripheral wall portion 11b and the cylindrical portion 11d without a gap. In a plan view, the radius of curvature of the second peripheral wall portion 11c is larger than, but not limited to, the radius of curvature of the first peripheral wall portion 11b. A protrusion 11e, which is a locking portion for locking the opening / closing portion 41 (details will be described later) of the cover portion 3, is provided on the outer peripheral surface of the first peripheral wall portion 11b.

The cylindrical portion 11d is a mounting port for a device that supplies liquid to the water supply port 13, or a mounting port for an accessory (attachment) for mounting the device. The cylindrical portion 11d is located, for example, at one end in direction D3. In the direction D1, the height of the cylindrical portion 11d is higher than, but not limited to, the height of the first peripheral wall portion 11b and the height of the second peripheral wall portion 11c. In the direction D1, the height of the first peripheral wall portion 11b and the height of the second peripheral wall portion 11c are the same as each other, but the height is not limited to this.

The protruding portion 12 is a portion that defines the connection space CS1 (see also FIGS. 9 and 10 described later) that connects the water supply port 13 and the internal space 14. Therefore, the connection space CS1 is provided inside the protrusion 12. The protruding portion 12 is also a portion that supports a part of the cover portion 3. In a plan view, the protrusion 12 is located on the opposite side of the outlet 16 via the valve seat 15. Further, in a plan view, the protrusion 12, the valve seat 15, and the outlet 16 are arranged in order in the direction D2. The protrusion 12 is located on one side of the direction D3. The protruding portion 12 is integrated with, for example, the base portion 11a of the peripheral wall 11, but is not limited to this. In the present embodiment, the protruding portion 12 corresponds to a portion located on one side (lower side of the paper surface in FIG. 4) of the valve seat 15 in the direction D2. Therefore, the portion located on the opposite side (upper side in FIG. 4) of the valve seat 15 in the direction D2 and integrated with the protruding portion 12 is a portion different from the protruding portion 12 for explanation.

The protruding portion 12 has a side wall 12a that stands up from the main surface 2a and a top surface 12b that extends from the top of the side wall 12a. The side wall 12a is a part of the portion defining the flow path FL on the main surface 2a, and is joined to the base portion 11a of the peripheral wall 11 and the wall portion 17 without a gap. The top surface 12b is a portion where a part of the cover portion 3 is arranged, and is located on the cover portion 3 side of the main surface 2a in the direction D1.

The water supply port 13 is an inlet of the flow path FL and communicates with the external and internal spaces 14 of the main body 2. The water supply port 13 is surrounded by the cylindrical portion 11d of the peripheral wall 11 in a plan view. The water supply port 13 communicates with the internal space 14 via the connection space CS1 defined by the protrusion 12.

The internal space 14 is a portion of the main body 2 that temporarily stores the liquid. The internal space 14 has a first space 14a communicating with the connection space CS1, a second space 14b communicating with the valve seat 15, and a connection space CS2 connecting the first space 14a and the second space 14b. For example, from the viewpoint of adjusting the liquid supply rate, the first space 14a does not overlap with the water supply port 13 in the direction D1, but is not limited to this. The second space 14b accommodates a valve 53 (see FIGS. 14A and 14B, details of which will be described later) that opens and closes the valve seat 15 by interlocking with the float 4. Therefore, the internal space 14 having the second space 14b is also referred to as a valve chamber in which the valve 53 is housed. The connection space CS2 is an opening provided in a partition provided between the first space 14a and the second space 14b, and is located on the bottom side of the main body 2 in the direction D1. The portion of the main body 2 that defines the second space 14b is provided with a protrusion that overlaps the valve seat 15 in the direction D1 and on which the valve 53 can be placed, but is not limited to this.

The valve seat 15 is an opening that communicates with the outside of the main body 2 and the internal space 14 that is the valve chamber, and is provided on the main surface 2a. The valve seat 15 is located closer to the center of the main body 2 than the outlet 16 in the direction D2, and is located on the other side of the water supply port 13 in the direction D3. The valve seat 15 has a recess 15a that fits into the valve 53. The recess 15a is provided inside the main body 2. Further, in a plan view, the periphery of the valve seat 15 is raised along the shape of the recess 15a, but the present invention is not limited to this.

The outlet 16 is an outlet of the flow path FL, and is a through hole provided on the main surface 2a and penetrating the main body 2. In plan view, the outlet 16 is located on the other side of the valve seat 15 in the direction D2. A part of the main surface 2a located around the outlet 16 may be provided with an inclined portion that descends toward the outlet 16.

The wall portion 17 is a part of a portion that defines the flow path FL on the main surface 2a, like the side wall 12a of the protruding portion 12, and is erected along the direction D1. Therefore, the direction D1 is also referred to as the erection direction of the wall portion 17. Further, the wall portion 17 is a portion that divides the main surface 2a into a plurality of regions. In the present embodiment, the wall portion 17 divides the main surface 2a into a first region AR1 and a second region AR2. The first region AR1 is located on the opposite side of the second region AR2 via the wall portion 17 in the direction D3. The first region AR1 is provided with a water supply port 13, a valve seat 15, an outflow port 16, and a first through hole 18, and includes a part of the flow path FL. The second through hole 19 is provided in the second region AR2 and does not include the flow path FL. Therefore, the wall portion 17 also exhibits a function of preventing or suppressing the outflow of the liquid that has reached the main surface 2a via the valve seat 15 to the outside of the flow path FL (that is, the second region AR2). The wall portion 17 has a first portion 21 and a second portion 22 located on one side of the first portion 21 in the direction D2.

The first portion 21 is a portion extending linearly along the direction D2 from the base portion 11a of the peripheral wall 11 in a plan view. The first portion 21 is separated from the protruding portion 12. Therefore, a gap S1 is provided between the first portion 21 and the protruding portion 12. The first portion 21 has a first side surface 23 located in the first region AR1, a second side surface 24 located on the opposite side of the first side surface 23 in the direction D3, and a top surface 25 on which the cover portion 3 is arranged. Have.

The first side surface 23 is a surface that extends linearly along the direction D2 in a plan view, generally extends in the direction D1 and intersects the direction D3. The first side surface 23 is located on the other side of the valve seat 15 and the outlet 16 in the direction D3. In other words, both the valve seat 15 and the outlet 16 are located on one side of the first side surface 23 in the direction D3. A part 23a of the first side surface 23 defines a part of the outflow port 16 in a plan view. The other portion 23b of the first side surface 23 is located on one side of the portion 23a in the direction D2. In addition, in a plan view, the other portion 23b is aligned with the valve seat 15 and the water supply port 13 in the direction D3. Therefore, the first side surface 23 extends from the outlet 16 toward the valve seat 15 in a plan view, and guides the liquid that has reached the main surface 2a through the valve seat 15 to the outlet 16. Functions as. From the viewpoint of satisfactorily exerting the guide function, the other portion 23b of the first side surface 23 is preferably located on one side of the valve seat 15 in the direction D2, but is not limited to this. For example, the guide function can be performed even when the other portion 23b of the first side surface 23 is located on the other side in the direction D2 with respect to the valve seat 15.

The second side surface 24 is a surface located in the second region AR2, extends linearly along the direction D2 in a plan view like the first side surface 23, and extends substantially in the direction D1. It intersects direction D3. The second side surface 24 has a groove 24a extending along the direction D1. The groove 24a functions as a guide when the member is inserted into the second through hole 19, and extends to the second through hole 19.

The second portion 22 is a portion extending from the first portion 21 to the protruding portion 12, and projects to the other side in the direction D3 in a plan view. In the present embodiment, the second portion 22 has a substantially semicircular shape, and at least a part of the second portion 22 is located on the other side of the center of the main body portion 2 in the direction D3. The second portion 22 has a side surface 26 continuous with the first side surface 23, a side surface 27 continuous with the second side surface 24, and a top surface 28 on which the cover portion 3 is arranged. In the present embodiment, the top surface 28, the top surface 25 of the first portion 21, the top surface of the base portion 11a, and the top surface 12b of the protruding portion 12 are located on the same plane as each other, but the present invention is limited to this. I can't.

A notch 29 is provided in the second part 22. The notch 29 is a portion that guides the overflowed liquid to the second region AR2 if the liquid that has escaped from the flow path FL overflows from the first region AR1. The shape of the notch 29 is not particularly limited, but is, for example, an inverted trapezoidal shape, a semicircular shape, or the like. From the viewpoint of preventing the liquid from easily overflowing from the first region AR1, the bottom of the notch 29 may be, for example, the apex 28 side of the center of the second portion 22 along the direction D1. The notch 29 does not necessarily have to be provided by notching the main body portion 2 (second portion 22). For example, it may be formed along a mold for molding the second portion 22. Therefore, the notch 29 can also be referred to simply as a recess recessed from the top surface 28 in the direction D1.

The first through hole 18 is a portion through which a part of the float 4 is inserted, is provided on the main surface 2a, and penetrates the main body portion 2. The first through hole 18 is located on the other side of the valve seat 15 and the first portion 21 of the wall portion 17 in the direction D2. Further, the first through hole 18 is located between the protruding portion 12 and the second portion 22 in a plan view. A gap S1 is located between the first through hole 18 and the valve seat 15. Therefore, the first through hole 18 is located on the opposite side of the valve seat 15 via the gap S1. When the liquid that has reached the main surface 2a via the valve seat 15 has passed through the flow path FL, passed through the gap S1, and reached the first through hole 18, the liquid has passed through the first through hole 18. It is supplied in the storage battery.

The second through hole 19 is a portion through which an inspection device (not shown) for inspecting the inside of the storage battery is inserted, is provided on the main surface 2a and penetrates the main body 2. In a plan view, the second through hole 19 is located on the opposite side of the outflow port 16 via the first portion 21 of the wall portion 17. Therefore, the second through hole 19 is located on the other side of the first side surface 23 in the direction D3. Further, in a plan view, the second through hole 19 is located on the opposite side of the first through hole 18 through the notch 29 of the wall portion 17. Therefore, a notch 29 is provided between the first through hole 18 and the second through hole 19 in a plan view. A part of the second through hole 19 is continuous with the groove 24a of the first portion 21. The second through hole 19 has a main through hole 19a and a sub through hole 19b defined in the main through hole 19a, but is not limited thereto. When the liquid that has reached the main surface 2a via the valve seat 15 deviates from the flow path FL and reaches the second through hole 19, the liquid is supplied into the storage battery through the second through hole 19.

In the second region AR2 and around the second through hole 19, the main surface 2a has inclined portions SF1 and SF2 that descend toward the second through hole 19. The inclined portion SF1 is provided at least between the notch 29 and the second through hole 19 in a plan view. As a result, the liquid that has reached the second region AR2 through the notch 29 can easily reach the second through hole 19 through the inclined portion SF1. That is, the liquid that has reached the second region AR2 is less likely to stay in the second region AR2. The inclined portion SF2 is located on the opposite side of the inclined portion SF1 via the second through hole 19 in a plan view, and is located between the second through hole 19 and the first peripheral wall portion 11b of the peripheral wall 11.

In the following, each structure constituting the main body 2 and details of each structure will be described with reference to FIGS. 6 to 12. FIG. 6 is an exploded view of the main body. FIG. 7 is a perspective view of the first structure. FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. FIG. 9 is a cross-sectional view taken along the line IX-IX of FIG. FIG. 10 is a perspective view showing the back side of the first structure. FIG. 11 is a diagram showing a main part of the second structure. FIG. 12 is a cross-sectional view taken along the line XII-XII of FIG. In the following, the description of the parts already described will be omitted. Further, in FIGS. 6 to 12, some reference numerals are omitted.

As shown in FIG. 6, the main body 2 is a combination structure of the first structure 5 and the second structure 6. The main body 2 is formed by combining the first structure 5 and the second structure 6. When the refill plug 1 is attached to the storage battery, the first structure 5 is located outside the storage battery. On the other hand, most of the second structure 6 is located inside the storage battery, and the other part of the second structure 6 is covered by the first structure 5. Therefore, the main surface 2a is composed of the first structure 5.

As shown in FIGS. 7 and 8, the first side surface 23 of the first portion 21 included in the wall portion 17 of the first structure 5 has a first end 23c located on the main surface 2a side in the direction D1. It has a second end 23d located on the opposite side of the first end 23c in the direction D1 and is inclined with respect to the direction D1. The first end 23c is in contact with the main surface 2a, and the second end 23d is in contact with the top surface 25. Further, the second side surface 24 of the wall portion 17 has a third end 24b located on the main surface 2a side in the direction D1 and a fourth end 24c located on the opposite side of the third end 24b in the direction D1. Moreover, it is inclined with respect to the direction D1. The third end 24b is in contact with the main surface 2a, and the fourth end 24c is in contact with the top surface 25. In addition, in a plan view, the first end 23c is located outside the second end 23d and the third end 24b is located outside the fourth end 24c. The angle formed by the first side surface 23 and the top surface 25 and the angle formed by the second side surface 24 and the top surface 25 are obtuse angles. Therefore, the width of the first portion 21 along the direction D3 gradually increases from the top surface 25 side toward the main surface 2a in the direction D1.

As shown in FIG. 9, the side wall 12a of the protrusion 12 has an end 12c located on the main surface 2a side in the direction D1 and an end 12d located on the opposite side of the end 12c in the direction D1. It is inclined with respect to the direction D1. In addition, in a plan view, the end 12c is located outside the end 12d, and the angle formed by the side wall 12a and the top surface 12b is an obtuse angle.

As shown in FIGS. 11 and 12, the second structure 6 has openings 6a to 6f and a wall 6g that surrounds the opening 6f and stands in the direction D1 in a plan view. The opening 6a is connected to the connection space CS1 (see FIGS. 5, 9 and 10) and overlaps the first space 14a (see FIG. 5) in direction D1. The opening 6b is connected to the valve seat 15 (see FIG. 5) and overlaps the second space 14b (see FIG. 5) in direction D1. The opening 6c overlaps the outlet 16 (see FIG. 5) in direction D1. The opening 6d overlaps the first through hole 18 (see FIG. 4) in direction D1. The opening 6e overlaps the main through hole 19a (see FIG. 4) of the second through hole 19 in the direction D1. The opening 6f overlaps the sub-through hole 19b (see FIG. 4) of the second through hole 19 in the direction D1. The wall 6g is a portion that defines the secondary through hole 19b, and is housed in the second through hole 19.

(Flower path of the main body)
Next, with reference to FIGS. 4 and 5, an intended flow path FL configured by the main body 2 and a flow of liquid deviating from the flow path FL (that is, an unintended flow path) will be described. .. As shown in FIGS. 4 and 5, the flow path FL is divided into, for example, a first flow path FL1, a second flow path FL2, a third flow path FL3, a fourth flow path FL4, and a fifth flow path FL5. ..

The first flow path FL1 indicates a flow path of the liquid supplied from the outside to the water supply port 13. The second flow path FL2 indicates a flow path of the liquid that passes through the first flow path FL1 and then goes to the connection space CS1 of the protrusion 12. The third flow path FL3 indicates a flow path of the liquid that goes to the internal space 14 after passing through the second flow path FL2. The fourth flow path FL4 shows a flow path of the liquid from the internal space 14 to the main surface 2a of the main body 2 via the valve seat 15 in the open state. The fifth flow path FL5 indicates a flow path of the liquid from the main surface 2a to the outflow port 16. Therefore, the liquid that has passed through the first flow path FL1 to the fifth flow path FL5 in order is supplied to the inside of the storage battery via the outlet 16.

Most of the liquid that reaches the main surface 2a through the valve seat 15 flows toward the outlet 16 or flows toward the outlet using the first side surface 23 of the first portion 21 of the wall portion 17 as a guide. .. However, a part of the liquid is separated from the flow path FL and flows into, for example, the gap S1 between the first portion 21 and the protruding portion 12. The liquid that has passed through the gap S1 and reached the first through hole 18 is supplied to the inside of the storage battery through the first through hole 18. Therefore, a part of the liquid deviated from the flow path FL is supplied to the inside of the storage battery along the flow path (first unintended flow path EFL1) toward the first through hole 18 through the gap S1. ..

The other part of the liquid that deviates from the flow path FL and passes through the gap S1 passes through the notch 29 and overflows from the first region AR1 to the second region AR2. The liquid overflowing in the second region AR2 is guided to the second through hole 19 by the inclined portion SF1. The liquid that has reached the second through hole 19 is supplied to the inside of the storage battery through the second through hole 19. Therefore, the other part of the liquid that has deviated from the flow path FL is along the flow path (second unintended flow path EFL2) toward the second through hole 19 through the gap S1 and the notch 29. It is supplied inside the storage battery. As described above, in the main body 2 of the refill plug 1 according to the present embodiment, at least a part of the liquid that has deviated from the intended flow path FL enters the inside of the storage battery through the first through hole 18 or the second through hole 19. Be supplied.

(Cover part)
Next, the configuration of the cover portion 3 will be described with reference to FIGS. 1 to 3. The cover portion 3 is a portion that prevents the liquid flowing through the main body portion 2 from leaking to the outside, and is located on the main surface 2a of the main body portion 2 in the direction D1. Therefore, when the refill plug 1 is attached to the storage battery, the cover portion 3 is located outside the storage battery. The cover portion 3 has a main portion (accommodating portion) 31 and an opening / closing portion 41.

The main portion 31 is a portion that covers a part of the first region AR1 in a plan view, and is arranged in contact with the top surfaces 12b of the protruding portion 12 of the main body portion 2 and the top surfaces 25 and 28 of the wall portion 17. Therefore, the main portion 31 is located at least on the valve seat 15 and on the outlet 16 (see FIG. 4 above). Further, the main portion 31 is provided at the other end on the opposite side of the main body 2 facing the inside of the battery tank 100A, and the valve 53 that opens and closes a part (valve seat 15) of the flow path FL is provided in the battery tank 100A. A part of the float 4 to be moved in the direction D1 in conjunction with the liquid level of the electrolytic solution L inside is accommodated. The main portion 31 has, for example, a substantially semicircular shape in which the position overlapping the cylindrical portion 11d is missing in a plan view. The main portion 31 is, for example, a resin molded product. The main portion 31 has a bottom portion 32 arranged on the main body portion 2 and a raised portion 33 that rises from the bottom portion 32 along the direction D1.

The bottom portion 32 is a base of the cover portion 3 and is a portion in contact with the main body portion 2. The bottom portion 32 comes into contact with, for example, the second peripheral wall portion 11c of the peripheral wall 11 and a part of the cylindrical portion 11d of the peripheral wall 11 without a gap. In this case, leakage of the liquid located on the first region AR1 to the outside is satisfactorily prevented or suppressed. The bottom portion 32 is fixed to the main body portion 2 by various methods. For example, the bottom portion 32 may be fixed to the main body portion 2 via an adhesive or the like, or may be welded to the main body portion 2.

The raised portion 33 is a portion that defines a space (not shown) for accommodating a part (details will be described later) of the portion of the float 4 located on the main surface 2a. The raised portion 33 is also a portion that supports the opening / closing portion 41 of the cover portion 3. The raised portion 33 is a depression in which a top surface 33a facing the main body portion 2 in the direction D1, a wall surface 33b standing from the top surface 33a toward the main body portion 2, and a part of the wall surface 33b are depressed along the direction D1. It has a portion 33c, a pair of bearing portions 33d provided on the top surface 33a, and a pair of side surfaces 33e and 33f intersecting the direction D2. The wall surface 33b extends along the directions D1 and D2, and is the portion closest to the opening / closing portion 41 in the direction D3. When the opening / closing portion 41 is closed, the wall surface 33b is an facing surface facing the opening / closing portion 41. The depressed portion 33c is a portion that is depressed from the bottom 32 side toward the top surface 33a in the direction D1 and overlaps the gap S1 between the protruding portion 12 and the first portion 21 of the wall portion 17. The bearing portion 33d is a portion that rotatably supports the opening / closing portion 41.

The opening / closing part 41 is a part that can be opened / closed with respect to the main body part 2. When the opening / closing portion 41 is closed, the opening / closing portion 41 covers the first peripheral wall portion 11b and the second region AR2 of the main body portion 2 in a plan view. By covering the second peripheral wall portion 11c and the second region AR2 with the opening / closing portion 41, leakage of liquid from the first through hole 18 and the second through hole 19 located on the second region AR2 to the outside is prevented or suppressed. To. When the opening / closing portion 41 is opened, an inspection device or the like can be inserted into the storage battery through the second through hole 19 provided in the exposed second region AR2. In other words, when the opening / closing portion 41 is opened, the inspection device or the like can be inserted into the storage battery while the refill plug 1 is attached to the storage battery. The opening / closing portion 41 is, for example, a resin molded product like the main portion 31. In this case, the resin contained in the opening / closing portion 41 may be the same as or different from the resin contained in the main portion 31. In the present embodiment, the resin contained in the opening / closing portion 41 is different from the resin contained in the main portion 31, and the opening / closing portion 41 is transparent. In this case, the float 4 can be easily visually recognized even when the opening / closing portion 41 is in the closed state. The opening / closing portion 41 has a lid portion 42, a rotating portion 43, and a handle 44.

The lid portion 42 is the main body of the opening / closing portion 41 and covers the first peripheral wall portion 11b and the second region AR2. By locking the lid portion 42 to the protrusion 11e located outside the first peripheral wall portion 11b, the opening / closing portion 41 can be maintained in a closed state. When the opening / closing portion 41 is closed, the lid portion 42 is located on the base portion 11a of the peripheral wall 11 and outside the first peripheral wall portion 11b. It covers a part of the raised portion 33 of the main portion 31. The lid portion 42 is separated from the top surface 33a, the wall surface 33b, and the side surfaces 33e and 33f of the raised portion 33. The lid portion 42 intersects the top surface 42a facing the main body portion 2 in the direction D1 and the wall surface (second wall surface portion) 42b facing the wall surface 33b of the raised portion 33 in the direction D3, and the float 4. 42c, which is provided to avoid interference with the first shaft 52 connected to the floating member 51, intersects the direction D2, and is formed on each of the pair of side surfaces 33e and 33f of the raised portion 33 in the direction D2. It has a pair of side surfaces (second side surface portions) 42e and 42f that face each other.

The rotating portion 43 is a portion that is rotatably mounted on the bearing portion 33d of the raised portion 33, and is integrated with the lid portion 42. The rotating portion 43 has a shaft shape that can be rotated on, for example, the bearing portion 33d. The rotation shaft of the rotating portion 43 extends in the direction D2 in which the wall surface 33b extends. The handle 44 is a protruding portion used when opening the opening / closing portion 41, and is provided on the other end side in the direction D3.

The wall surface 33b extends from the inside of the main body 2 to the outer edge side end 33ba toward the peripheral wall 11 which is the outer edge of the main body 2 and intersects the direction D3 orthogonal to the direction D1 in a plan view from the direction D1. doing. The inside of the main body 2 referred to here means a region inside the peripheral wall 11 in a plan view seen from the direction D1. In the present embodiment, the wall surface 33b extends from the inside of the main body 2 to the outer edge side ends 33ba and 33ba in opposite directions along the direction D2. In other words, the wall surface 33b extends linearly from one outer edge side end portion 33ba to the other outer edge side end portion 33ba except for the recessed portion 33c. Both outer edge side end portions 33ba are separated from the inner peripheral surface 11ba of the first peripheral wall portion 11b which is a part of the peripheral wall 11 of the main body portion 2, but the present invention is not limited to this. Both outer veranda end portions 33ba may come into contact with the inner peripheral surface 11ba of the first peripheral wall portion 11b.

The wall surface 33b and the wall surface 42b are provided with a gap G1 in the direction D3 facing each other at least at the outer edge side ends 33ba and 33ba of the wall surface 33b. The wall surface 33b and the wall surface 42b of the present embodiment are continuously provided with a gap G1 in all sections facing each other. The gap G1 referred to here means a gap having a distance between the wall surface 33b and the wall surface 42b where no interfacial tension is generated, such as a material forming the wall surface 33b and the wall surface 42b, a type of liquid to be replenished as the electrolytic solution L, and the like. It is a gap having a distance that is appropriately calculated according to the above. The size of the gap G1 which is the distance between the wall surface 33b and the wall surface 42b at the outer edge side end 33ba is the wall surface 33b formed from a resin material such as ABS (acrylonitrile-butadiene-styrene copolymer) and AS (acrylonitrile-styrene). The size (size) is such that interfacial tension does not occur when, for example, condensed moisture or the like intervenes between the wall surface 42b formed of a resin material such as a copolymer), and is, for example, 2 mm to 5 mm. ..

A gap G2 is provided between the side surface 33e and the side surface 42e in the direction D2 facing each other. A gap G2 is continuously provided between the side surface 33e and the side surface 42e of the present embodiment in all sections facing each other. Similarly, the side surface 33f and the side surface 42f are provided with a gap G2 in the direction D2 facing each other. The gap G2 referred to here means a gap having a distance between the side surface 33e and the side surface 42e and between the side surface 33f and the side surface 42f so that no interfacial tension is generated, and forms the side surfaces 33e and 33f and the side surfaces 42e and 42f. It is a gap having a distance appropriately calculated according to the material, the type of liquid to be replenished as the electrolytic solution L, and the like. A gap G2 is continuously provided between the side surface 33f and the side surface 42f of the present embodiment in all sections facing each other. The size of the gap G2 is such that, for example, dew condensation moisture or the like is formed between the side surface 33e formed of a resin material such as ABS and the side surface 42e formed of a resin material such as AS and between the side surface 33f and the side surface 42f. The size is such that interfacial tension does not occur when intervening, for example, 2 mm to 5 mm.

A part of each of the side surfaces 33e and 33f of the raised portion 33 is separated from the inner peripheral surface 11ba of the first peripheral wall portion 11b which is a part of the peripheral wall 11, but is not limited to this. Each part of the side surfaces 33e and 33f may come into contact with the inner peripheral surface 11ba of the first peripheral wall portion 11b. A part of each of the side surfaces 42e and 42f of the lid portion 42 is separated from the outer peripheral surface 11bb of the first peripheral wall portion 11b which is a part of the peripheral wall 11.

(float)
Next, the configuration of the cover portion 3 will be described with reference to FIGS. 13 and 14A and 14B. FIG. 13 is a diagram showing a float. FIG. 14A is a diagram showing a valve seat in an open state, and FIG. 14B is a diagram showing a valve seat in a closed state. In FIGS. 14A and 14B, the cover portion 3 is omitted. As shown in FIGS. 13 and 14A and 14B, the float 4 includes a floating member 51, a first shaft 52 connected to the floating member 51, a valve 53 corresponding to a valve seat 15 of the main body 2, and a valve. It has a second shaft 54 connected to 53 and a connecting portion 55 connecting the first shaft 52 and the second shaft 54. When the refill plug 1 is mounted on the storage battery, the floating member 51, a part of the first shaft 52, the valve 53, and a part of the second shaft 54 are located inside the storage battery or inside the main body 2. On the other hand, the other portion of the first shaft 52, the other portion of the second shaft 54, and the connecting portion 55 are located on the main surface 2a of the main body portion 2 and outside the storage battery.

The floating member 51 is a member that floats on the electrolytic solution L housed in the storage battery. Therefore, the floating member 51 exhibits a function of interlocking with the liquid level of the electrolytic solution L housed in the storage battery. In the present embodiment, when the floating member 51 is interlocked with the liquid level, the entire float 4 is also interlocked. The shape of the floating member 51 is not particularly limited.

The first shaft 52 is a member extending in the direction D1 when mounted on the main body 2, and inserts the first through hole 18. The first shaft 52 is easily visible via the opening / closing portion 41 (see FIG. 2 and the like). Therefore, by confirming the position of the first shaft 52, it can be easily determined whether or not the liquid needs to be supplied to the storage battery.

As described above, the valve 53 is a member housed in the internal space 14 of the main body 2, and has a shape that can be fitted into the recess 15a of the valve seat 15. The valve 53 opens and closes the valve seat 15 in conjunction with the floating member 51. As shown in FIG. 14A, when the main body 2 is mounted on the storage battery 100 and the electrolytic solution L is not sufficiently contained, the valve 53 is separated from the recess 15a, and the valve seat 15 is separated from the recess 15a. It is open. On the other hand, as shown in FIG. 14B, when the storage battery 100 sufficiently contains the electrolytic solution L, the valve 53 is fitted to the recess 15a and closes the valve seat 15. In this embodiment, the valve 53 has a substantially hemispherical shape, but is not limited thereto.

The second shaft 54 is a member extending in the direction D1 when the float 4 is attached to the main body 2, and the valve seat 15 is inserted through the second shaft 54. The second shaft 54, unlike the first shaft 52, is located inside the raised portion 33 (see FIG. 3) of the cover portion 3. Therefore, the second axis 54 is less visible than the first axis 52. The second shaft 54 is integrally molded with the valve 53, but is not limited thereto.

The connecting portion 55 is a portion that transmits the displacement of the floating member 51 to the valve 53 and the second shaft 54. By connecting the first shaft 52 and the second shaft 54 via the connecting portion 55, the valve 53 is interlocked with the floating member 51. The connection portion 55 is integrated with the first shaft 52 and has a grip portion 55a for gripping the second shaft 54, but the connection portion 55 is not limited thereto. When the float 4 is attached to the main body 2, a part of the connecting portion 55 passes through the gap S1 between the first portion 21 of the wall portion 17 and the protruding portion 12 on the main surface 2a. The part is located in the recessed portion 33c (see FIG. 3) of the raised portion 33 when the storage battery sufficiently contains the electrolytic solution L.

(Action effect)
In the refill plug 1 according to the present embodiment described above, the liquid such as water supplied from the water supply port 13 to the internal space 14 which is the valve chamber is the main body 2 via the valve seat 15 which is in the open state. Reach surface 2a. Then, when the liquid flowing through the main surface 2a reaches the outlet 16, the liquid is supplied into the storage battery. Here, the main surface 2a is provided with a wall portion 17 erected from the main body portion 2, and the valve seat 15 and the outlet 16 are located on one side of the first side surface 23 of the wall portion 17 in the direction D3. To do. Therefore, the liquid that has reached the first side surface 23 of the wall portion 17 after reaching the main surface 2a of the main body portion 2 from the valve seat 15 tends to flow toward the outflow port 16 through the first side surface 23. Therefore, it becomes difficult for the liquid to flow on the main surface 2a of the main body 2 other than the intended flow path FL. Therefore, by using the refilling faucet 1 according to the present embodiment, it is possible to suppress problems during refilling.

In the present embodiment, the main body 2 is provided on the main surface 2a and is separated from the valve seat 15 and the outlet 16, and the first through hole 18 penetrating the main body 2 and the valve seat when viewed from the direction D1. It has a side wall 12a erected from the main surface 2a and a protruding portion 12 having a top surface 12b, which is located on the opposite side of the outflow port 16 via the 15, and the float 4 is connected to the floating member 51 and has a direction. The first shaft 52 extending to D1 and inserting the first through hole 18, the second shaft 54 connecting to the valve 53 and extending in the direction D1 and inserting the valve seat 15, the first shaft 52 and It has a connecting portion 55 for connecting the second shaft 54, and a part of the connecting portion 55 is located between the first portion 21 and the protruding portion 12 of the wall portion 17 on the main surface 2a. .. Therefore, since the movement of the float 4 can be regulated by the wall portion 17 and the protruding portion 12, the functions of the floating member 51 and the valve 53 included in the float 4 can be satisfactorily exhibited.

In the present embodiment, the wall portion 17 divides the main surface 2a into a plurality of regions, and the first region AR1 included in the plurality of regions includes a valve seat 15, an outflow port 16, and a first through hole. 18 and are provided. Therefore, the liquid that has reached the first region AR1 of the main surface 2a via the valve seat 15 is retained in the first region AR1 by the wall portion 17. Therefore, it is possible to satisfactorily suppress the flow of water other than the first region AR1 which is the intended region on the main surface 2a of the main body 2.

In the present embodiment, the main body 2 is provided in the second region AR2 included in the plurality of regions, has a second through hole 19 through which an inspection device for inspecting the inside of the storage battery is inserted, and has a second through hole 19 in the wall portion 17. A notch 29 is provided in the second portion 22 located between the first through hole 18 and the second through hole 19. Therefore, the liquid overflowing from the first region AR1 tends to overflow from the notch 29 of the wall portion 17. The liquid overflowing from the notch 29 to the second region AR2 flows into the storage battery through the second through hole 19. By providing the notch 29 at a predetermined position on the wall portion 17 in this way, the liquid that has flowed other than the intended flow path FL can also be supplied into the storage battery. In addition, in the present embodiment, the main surface 2a is located in the second region AR2, between the notch 29 and the second through hole 19, and has an inclined portion SF1 that descends toward the second through hole 19. Have. Therefore, the water overflowing in the second region AR2 easily reaches the second through hole 19 via the inclined portion SF1.

In the present embodiment, the wall portion 17 includes a first portion 21 having a first side surface 23 extending linearly when viewed from the direction D1, and a second portion 22 that integrates the first portion 21 and the protruding portion 12. The second portion 22 projects to the other side in the direction D3 when viewed from the direction D1. Therefore, since the range of the first region AR1 can be expanded, the outflow of the liquid from the first region AR1 to the second region AR2, which is an unintended region, can be suppressed.

In the present embodiment, the main body 2 is provided on the main surface 2a and has a second through hole 19 through which an inspection device for inspecting the inside of the storage battery is inserted, and the second through hole 19 is the first in the direction D3. It is located on the other side of the side surface 23.

In the present embodiment, the wall portion 17 has a second side surface 24 located on the opposite side of the first side surface 23 in the direction D3, and the second side surface 24 is continuous with the second through hole 19 and extends in the direction D3. It has an existing groove 24a. Therefore, the inspection device can be easily attached to the second through hole 19.

In the present embodiment, the first side surface 23 has a first end 23c located on the main surface 2a side in the direction D1 and a second end 23d located on the opposite side of the first end 23c in the direction D1. , An inclined surface inclined with respect to the direction D1, and the first end 23c is located outside the second end 23d when viewed from the direction D1. Therefore, since the pressure resistance of the wall portion 17 in the direction D3 is improved, damage to the wall portion 17 due to water pressure can be suppressed.

In the present embodiment, the main body 2 has a peripheral wall 11 that surrounds the edge of the main surface 2a and stands upright. Therefore, the outflow of the liquid from the main surface 2a to the outside of the refill faucet 1 can be satisfactorily suppressed.

The refill plug 1 according to the present embodiment is arranged in contact with the top surfaces 25 and 28 of the wall portion 17, and includes a cover portion 3 located on the valve seat 15. Therefore, it is possible to satisfactorily prevent the liquid that reaches the main surface 2a of the main body 2 from the valve seat 15 from flowing out to the outside of the refill plug 1.

The refill faucet according to one aspect of the present invention is not limited to the above-described embodiment, and various other modifications are possible. In the above embodiment, the cover portion has a main portion and an opening / closing portion, but the cover portion is not limited thereto. For example, the cover portion may be composed of only the main portion.

In the above embodiment, the main body portion and the cover portion are separate members, but the present invention is not limited to this. The main body may be integrated with at least a part of the cover. For example, the main part of the cover part is integrated with the main body part. In this case, the main body portion and the cover portion may be integrally molded. For example, the main body portion is integrated with the wall portion and has a cover portion located on the valve seat. Even in this case, the same effects as those in the above embodiment are achieved.

In the above embodiment, a notch is provided in the wall portion, but the present invention is not limited to this. For example, instead of the notch, an opening may be provided in the wall. Even in this case, the same effects as those in the above embodiment are achieved. Alternatively, the wall may be provided with both a notch and an opening.

In the above embodiment, the main surface of the main body portion is divided into a plurality of areas by the wall portion, but the present invention is not limited to this. For example, the wall portion may have only the first portion. In this case, the wall portion and the protruding portion provided on the main body portion are separated from each other. Therefore, the region where the valve seat, the outlet, and the first through hole are located on the main surface and the region where the second through hole is located on the main surface are connected to each other. Even in this case, since the first portion of the wall portion exhibits the same action as that of the above embodiment, the same action and effect as that of the above embodiment is exhibited.

1 ... Water faucet, 2 ... Main body, 2a ... Main surface, 3 ... Cover, 4 ... Float, 5 ... First structure, 6 ... Second structure, 11 ... Peripheral wall, 11a ... Base part, 11b ... No. 1 peripheral wall part, 11c ... 2nd peripheral wall part, 11d ... cylindrical part, 11e ... protrusion, 12 ... protruding part, 12a ... side wall, 12b ... top surface, 13 ... water supply port, 14 ... internal space (valve chamber), 15 ... Valve seat, 16 ... outlet, 17 ... wall, 18 ... first through hole, 19 ... second through hole, 21 ... first part, 22 ... second part, 23 ... first side surface, 23c ... first end , 23d ... 2nd end, 24 ... 2nd side surface, 24a ... groove, 25, 28 ... top surface, 29 ... notch, 31 ... main part, 32 ... bottom, 33 ... raised part, 33a ... top surface, 33b ... Wall surface, 33c ... recessed part, 33d ... bearing part, 41 ... opening / closing part, 42 ... lid part, 43 ... rotating part, 44 ... handle, 51 ... floating member, 52 ... first axis, 53 ... valve, 54 ... th 2 axes, 55 ... Connection part, 100 ... Storage battery, AR1 ... 1st region, AR2 ... 2nd region, FL ... Flow path, L ... Electrolyte, S1 ... Gap, SF1, SF2 ... Inclined part.

Claims (12)

A main body having a main surface located outside the storage battery when it is mounted on the storage battery,
The float attached to the main body and
It is a water faucet for storage batteries equipped with
The main body
A valve chamber provided inside the main body and
A water supply port that communicates with the outside of the main body and the valve chamber,
A valve seat provided on the main surface and communicating with the outside of the main body and the valve chamber,
An outlet provided on the main surface, separated from the valve chamber and the valve seat, and penetrating the main body.
It has a wall portion that is erected from the main surface and includes a first side surface extending from the outlet to the valve seat.
The float has a floating member that is linked to the liquid level of the electrolytic solution contained in the storage battery, and a valve that is located in the valve chamber and that opens and closes the valve seat in conjunction with the floating member.
Both the valve seat and the outlet are located on one side of the first side surface in the crossing direction intersecting the first side surface when viewed from the erection direction of the wall portion.
Refill faucet. The main body
A first through hole provided on the main surface, separated from the valve seat and the outlet, and penetrating the main body.
It has a side wall and a protruding portion having a side wall and a top surface that are located on the opposite side of the outlet via the valve seat when viewed from the erection direction and are erected from the main surface.
The float
A first shaft that is connected to the floating member, extends in the vertical direction, and inserts the first through hole.
A second shaft that is connected to the valve and extends in the vertical direction to insert the valve seat,
It has a connecting portion for connecting the first axis and the second axis, and has.
The refill plug according to claim 1, wherein a part of the connecting portion is located between the wall portion and the protruding portion on the main surface. The wall portion divides the main surface into a plurality of areas.
The refill plug according to claim 2, wherein the valve seat, the outlet, and the first through hole are provided in the first region included in the plurality of regions. The main body is provided in a second region included in the plurality of regions, and has a second through hole through which an inspection device for inspecting the inside of the storage battery is inserted.
The refill plug according to claim 3, wherein a notch or an opening is provided in a portion of the wall portion located between the first through hole and the second through hole. According to claim 4, the main surface is located in the second region and is located between the notch or the opening and the second through hole, and has an inclined portion that descends toward the second through hole. The described faucet. The wall portion has a first portion having the first side surface extending linearly when viewed from the erection direction, and a second portion extending from the first portion to the protruding portion.
The refill plug according to any one of claims 3 to 5, wherein the second portion projects to the other side in the crossing direction when viewed from the erection direction. The main body has a second through hole provided on the main surface and through which an inspection device for inspecting the inside of the storage battery is inserted.
The refill plug according to claim 2 or 3, wherein the second through hole is located on the opposite side of the first side surface in the crossing direction. The wall portion has a second side surface located on the opposite side of the first side surface in the crossing direction.
The refill plug according to claim 4 or 7, wherein the second side surface has a groove continuous with the second through hole and extending in the erection direction of the wall portion. The first side surface has a first end located on the main surface side in the erection direction and a second end located on the opposite side of the first end in the erection direction, and the upright. Tilt with respect to the installation direction
The refill plug according to any one of claims 1 to 8, wherein the first end is located outside the second end when viewed from the erection direction. The refill plug according to any one of claims 1 to 9, wherein the main body portion has a peripheral wall that surrounds the edge of the main surface and stands upright. The refill plug according to any one of claims 1 to 10, further comprising a cover portion located on the valve seat, which is arranged in contact with the top surface of the wall portion. The refill plug according to any one of claims 1 to 10, wherein the main body portion is integrated with the wall portion and has a cover portion located on the valve seat.

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