JP2657634B2 - Sacrificial anode mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is suitable, for example, for mounting on a flange portion of a joint of a cast iron pipe for water or gas buried in the soil, a non-threaded portion of a mounting bolt, or a cap of a water faucet. And a sacrificial anode mounting device.

[0002]

2. Description of the Related Art Conventionally, as a sacrificial anode (anode) of this kind, a metal or an alloy thereof such as Zn or Mg, which has a higher tendency to corrode than iron, is mounted on the head of a bolt by insertion or insertion. It is disclosed in JP-A-54-61044. In addition, Zn or M
A nut (corrosion-proof nut) made of a sacrificial anode metal such as g is screwed on, for example, in Jpn.
No. 2 is known.

[0003]

However, all of the above-mentioned conventional sacrificial anodes have limited mounting locations, and in particular, flanges of existing joints, unthreaded portions of mounting bolts, caps of water taps, and the like. Could not be easily attached to the non-threaded part.

The present invention has been made in view of the above circumstances, and can be easily mounted on a flange portion of a joint, a non-threaded portion of a mounting bolt, or a cap of a water faucet, and can be easily replaced. To provide a sacrificial anode mounting device.

[0005]

In order to achieve the above object, a sacrificial anode mounting apparatus according to the present invention comprises a support member detachably mounted and fixed to an anode mounting portion of an anticorrosion target,
A sacrificial anode member attached to the support member and connected to the anode mounting portion in a conductive state, wherein the sacrificial anode member is attached to the support member and the support member is fixed to the anode mounting portion at the same time. Is configured.

As a specific embodiment of the supporting member, a holding type fixed to the anode mounting portion so as to be embraced from the periphery or a clamping type fixed across the anode mounting portion is preferable. . On the other hand, the sacrificial anode member can have a simple cylindrical shape or any other shape.

[0007]

With the above arrangement, the sacrificial anode member is easily and detachably attached to the anode mounting portion via the support member, and is electrically connected to the conductive member. Also, the replacement of the sacrificial anode member can be easily performed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a state in which a cap 3 of a drilling machine mounting portion of a saddle water faucet 2 mounted on a water main 1 is used as an anode mounting portion.
1 shows an embodiment in which the present invention is implemented, and shows a sacrificial anode mounting device 1;
0 is a support member 11 attached and fixed to the cap 3,
It comprises a sacrificial anode member 12 attached to the support member 11. The cap 3 has a peripheral wall formed in an octagonal cap nut shape.

The support member 11 includes an enclosure 13 formed by punching and bending a conductive metal plate, a male screw body 14 fixedly protruding from the enclosure 13, and a lid attached to the enclosure 13. It consists of the body 15. As shown in FIG. 2, the surrounding body 13 surrounds the peripheral wall 3b of the cap 3 on the peripheral edge of an octagonally-shaped cover plate 16 that covers the top wall 3a of the cap 3, which is the anode mounting portion. And eight elastic leg pieces 17 extending divergently are integrally connected to each other, and a locking claw 17 that is bent inward at an end of each elastic leg piece 17.
a is provided. The male screw body 14 is fixedly protruded from the center portion of the cover plate 16 by welding or other appropriate fixing means. Further, the lid 15 has a peripheral side wall 18 forming an octagonal cylindrical body into which the cover plate 16 is fitted and fitted, and an insertion hole 19 of the male screw body 14 is provided at the center portion. When it is attached, the elastic leg piece 17 is pressed inward by the peripheral side wall 18 to be elastically deformed.

On the other hand, the sacrificial anode member 12 is made of Zn or Mg.
Is formed in a cylindrical body by a sacrificial anode metal material having a greater tendency to corrode than iron.
The female screw hole 20 which is screwed into the male screw body 14 is provided.

With the surrounding member 13 of the support member 11 having the above-described configuration covered by the cap 3 serving as the anode mounting portion, the female screw hole 20 of the sacrificial anode member 12 is screwed into the male screw member 14 and When the member 12 is screwed in and the cover 15 is pressed by the sacrificial anode member 12 to be attached to the enclosure 13, the elastic leg pieces 17 of the enclosure 13 are attached to the peripheral side wall 18 of the cover 15 as shown in FIG. As a result, the surrounding body 13 is fixed to the cap 3 so as to embrace the peripheral wall 3 b of the cap 3 with the elastic leg piece 17, and the locking claw 17 a at the tip is located below the neck of the cap 3. By engaging the portions, the support member 11 is firmly fixed to the cap 3.
Then, the sacrificial anode member 12 is disposed on the surrounding body 13 of the support member 11.
And the male screw body 14 is connected to the cap 3 in a conductive state.

As described above, when the support member 11 is structured so as to embrace the cap 3 serving as the anode mounting portion from the periphery, the support member 11 is mounted on the cap 3 shown in the drawing or on the head of a mounting bolt used for coupling the main pipe 1. Can be firmly and reliably fixed, a good electrical conduction state is obtained between the sacrificial anode member 12 and the anode mounting portion (cap) 3, and a stable anticorrosion function can be maintained. Moreover, the sacrificial anode member 12 can be easily replaced simply by loosening the screw.

FIG. 3 shows an embodiment of the present invention in which the flange 6 of the joint 5 of the main pipe 1 is used as an anode mounting portion. In this embodiment, the support member 21 is composed of a pair of opposed pieces 23,
24, the flange portion 6 is sandwiched and fixed. The female screw hole 25 is provided in one of the pieces 23. On the other hand, the sacrificial anode member 12 has a female screw hole 2
A male screw body 26 screwed with the fifth member 5 is integrally provided.
The distal end portion 26 a of the male screw portion 26 has a sharp shape and is provided with an annular blade portion 27. Then, as shown in the figure, the male screw body 26 is screwed into the female screw hole 25 and screwed in, and the distal end portion 26a is pressed against the flange portion 6, and the support member 2
1 is fixed to the flange 6, and the sacrificial anode member 12 is connected to the flange 6 via the male screw 26 in a conductive state. At this time, the blade portion 27 at the tip of the male screw body 26 bites into the flange portion 6 to make the electrical connection between the sacrificial anode member 12 and the flange portion 6 more reliable and good. In addition,
In order to prevent the male screw body 26 from being loosened, it is preferable to employ a loosening prevention means using a double nut with the female screw hole 25 by screwing a nut 28 to the male screw body 26 adjacent to the piece 23 of the support member 21. .

FIGS. 4 and 5 show an embodiment similar to that shown in FIG. 3. The support member 31 is formed by bending a metal plate into a U-clip shape as shown in FIG. A nut 35 is fixed to one of the pieces 33 of the main body 32 by welding or caulking, and the other piece 34 has a cutout 3.
6 is provided. The support member 31 is shown in FIG.
As shown in FIG. 7, the notch 36 of the piece 34 is engaged with the lower part of the neck of the holding bolt 7 used for the joint 5 so that the bolt head 7a
The male member 26 of the sacrificial anode member 12 is screwed into the nut 35 and screwed into the nut 35, and the tip 26a is pressed against the bolt head 7a, whereby the support member 31 is fixed to the bolt head 7a. At the same time, the sacrificial anode member 12 is electrically connected to the holding bolt 7 via the male screw portion 26. Also in this case, the blade portion 27 at the tip of the male screw body 26 is cut into the flange portion 6 so that the electrical connection between the sacrificial anode member 12 and the holding bolt 7 is reliably and favorably performed. Such a supporting member 31 is suitable for mounting the sacrificial anode member 12 using a comparatively small component having a constricted portion such as the lower portion of the neck of the holding bolt 7 as an anode mounting portion.

[0016]

As described above, according to the present invention,
The support member is formed detachably with respect to the anode mounting portion.
And the sacrificial anode member is detachable from the support member
Screwed into the sacrificial anode member.
Fixing means for fixing the support member to the anode mounting portion.
The sacrificial anode member can be easily attached to the non-threaded part of the joint, such as a water pipe buried in the soil, the non-threaded part of the mounting bolt, or the cap of the water faucet. In addition, the replacement of the sacrificial anode member can be easily performed. Moreover, only the sacrificial anode member is replaced
Moreover, the support member can be reused, which is economical.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of an essential part showing an embodiment of a sacrificial anode mounting device according to the present invention.

FIG. 2 is an exploded perspective view of the attachment device.

FIG. 3 is a partially cutaway front view showing another embodiment of the sacrificial anode mounting device according to the present invention.

FIG. 4 is a vertical sectional front view of a main part showing still another embodiment of the sacrificial anode mounting device according to the present invention.

FIG. 5 is a perspective view of a support member of the attachment device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main pipe 2 Saddle faucet 3 Cap 10 Sacrificial anode mounting device 11, 21, 31 Support member 12 Sacrificial anode member 13 Enclosure 14 Male screw body 15 Lid 16 Covering plate 17 Elastic leg piece 17a Locking claw 18 Peripheral side wall 19 Insertion hole 20 Female screw hole

Claims (4)

(57) [Claims] 1. A sacrifice anode member having a conductive support member interposed therebetween.
To the anode mounting part of the corrosion-resistant object
A sacrificial anode mounting device, wherein the supporting member is detachably formed with respect to the anode mounting portion.
And the sacrificial anode member is
The sacrificial anode member is detachably screwed to the material.
To fix the support member to the anode mounting portion.
Anode mounting device characterized in that it also serves as a fixing means
Place. 2. A plurality of elastic leg pieces surrounding the peripheral wall of the anode mounting portion and extending divergently are connected to the peripheral edge of a cover plate for covering the top wall of the anode mounting portion. Along with the surrounding body provided with a locking claw at an end thereof, a male screw body protruding from the cover plate, and attached to the surrounding body, and pressing the elastic leg piece inward, The sacrificial anode member has a female screw hole screwed into the male screw body, and the female screw hole is screwed into the male screw body to form the sacrificial anode. When the member is screwed in and the lid is pressed by the sacrificial anode member to be attached to the surrounding body, the surrounding body is fixed so as to embrace the peripheral wall of the anode mounting portion with the elastic leg pieces, and the sacrificial anode is fixed. A member configured to conduct to the anode mounting portion via the support member The sacrificial anode mounting device according to claim 1, wherein the device is mounted. 3. The support member has a U-shaped or U-shaped main body for sandwiching the anode mounting portion, and a female screw hole provided on one of opposed parts of the main body. The sacrificial anode member has a male screw body screwed into the female screw hole, and the male screw body is screwed into the female screw hole and pressed against the anode mounting portion, whereby the support member is connected to the anode. 2. The sacrificial anode mounting device according to claim 1 , wherein the sacrificial anode member is fixed to the mounting portion, and is configured to conduct the sacrificial anode member to the anode mounting portion. Wherein said support member, one with and has a female screw hole in the pieces facing each body formed into a U-shape or U-shaped pinching the anode mounting portion, the other piece The sacrificial anode member has a male screw body screwed into the female screw hole, and the male screw body is screwed into the female screw hole. The support member is fixed to the anode mounting portion by being pressed against the anode mounting portion in combination, and the sacrificial anode member is configured to be electrically connected to the anode mounting portion. The sacrificial anode mounting device according to claim 1 .