JPH108272A - Mounting device of sacrificial anode member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting device of a sacrificial anode member capable of easily attaching and detaching the cap nut of a saddle ferule and the head part of the mounting bolt of the joint of the waterworks pipe, etc., embedded under the ground. SOLUTION: This mounting device of the sacrificial anode member has a main body which is formed by bending a conductive metallic plate to a channel shape or U shape and integrally connecting the one-side ends of an upper plate 14 and lower plate 15 facing each other at a connecting part. The central part of the upper plate 14 is projectingly provided with a mounting screw part and is provided with plural elastic pawls 18 formed by blanking the peripheral part thereof and bending and louvering the port upward. The lower plate 15 is formed to a forked shape having a notched part engaging with the part under the neck of the mounting part of the sacrificial anode member 12. Either of the upper plate 14 or the lower plate 15 is provided with a stopper guide plate 23 engaging with the opposite flanks of the mounting part. The elastic pawls 18 are pushed down by the sacrificial anode member 12 screwed to the screw part, by which the elastic pawls are pressed to the mounting part in such a manner that the sacrificial anode member 12 and the mounting part are electrically conducted via the elastic pawls 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sacrifice suitable for mounting on a head of a mounting bolt of a joint of a cast iron pipe for water or gas buried in the soil, or a cap nut of a saddle tap, for example. The present invention relates to a device for mounting an anode member.

[0002]

2. Description of the Related Art Conventionally, as this kind of sacrificial anode (anode), a metal such as Zn or Mg, which has a higher tendency to corrode than iron, or an alloy thereof is embedded or inserted into a bolt head, for example, as disclosed in It is disclosed in JP-A-54-61044. Further, a bolt (corrosion-proof nut) made of a sacrificial anode metal such as Zn or Mg is screwed to the screw portion side of the bolt.
No. 72 is known. However, all of the above-mentioned conventional sacrificial anodes have limited mounting locations, and are particularly easily mounted on the non-threaded portion of the flange portion of the existing joint, the mounting screw, or the cap nut of the water tap. I couldn't do that.

Accordingly, the inventor of the present application has proposed a sacrificial anode which can be easily mounted on the flange portion of the joint, the non-threaded portion of the mounting bolt, the cap nut of the saddle faucet, and the like, and can be easily replaced. A member mounting device was proposed in Japanese Patent Application No. Hei 7-31665.

[0004]

SUMMARY OF THE INVENTION The present invention is an improvement of the above-mentioned apparatus for mounting a sacrificial anode member according to Japanese Patent Application No. Hei 7-31665. In particular, the cap nut of a saddle plug and the head of a mounting bolt for a joint are improved. It is an object of the present invention to provide a mounting device for a sacrificial anode member, which has a structure suitable for mounting a sacrificial anode member on a portion, and in which attachment and detachment operations can be performed more easily.

[0005]

In order to achieve the above-mentioned object, the mounting device of the present invention provides a conductive metal plate having a U-shape or U-shape.
It has a main body formed by bending into a letter shape, and one end of an upper plate and a lower plate facing each other are integrally connected by a connecting portion, and a mounting screw portion is protruded from a central portion of the upper plate. A plurality of elastic claws formed by punching a peripheral portion thereof and bending and raising the same upward, and the lower plate is provided with:
The sacrificial anode member is formed in a bifurcated shape having a cutout portion that engages with a lower part of the mounting portion of the mounting portion. A non-rotating guide plate is provided, and the elastic claw is pushed down by the sacrificial anode member screwed into the mounting screw portion and pressed against the mounting portion, and the sacrificial anode member and the mounting member are attached via the elastic claw. The parts are configured to be electrically connected to each other.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment in which the present invention is implemented by using a cap nut 3 of a drilling machine mounting portion of a saddle dispenser 2 mounted on a water main 1 as an anode mounting portion. The member mounting device 10 includes a mounting bracket 11 that is removably mounted on and fixed to the cap nut 3, and a sacrificial anode member 12 that is mounted on the mounting bracket 11.

As shown in FIGS. 2 and 4 to 6, the mounting bracket 11 is formed by punching and bending a conductive metal plate, for example, a steel plate, and the main body 13 has an upper plate 14 and a lower plate 15 opposed to each other. Are formed in a flat U-shape in which one end is integrally connected by a connecting portion 16. A mounting screw shaft 17 is fixedly protruded from a central portion of the upper plate 14, and four elastic claws 18 formed by punching a peripheral portion thereof and bending and raising the same upward are provided radially. . Lower plate 15
Is formed in a forked shape having a notch 19 extending from the edge toward the connecting portion 16. The width A of the notch 19 is slightly larger than the outer diameter of the threaded portion 2a (see FIG. 1) of the saddle tap 2 into which the cap nut 3 is screwed. , Notch 1
When the screw 9 is engaged with the screw portion 2 a, the side edges 20, 20 and the inner peripheral edge 21 of the notch 19 are locked to the lower surface of the cap nut 3. Further, the plate members 22, 22, which are bent downward from both side edges of the upper plate 14, are bent inward, and further bent downward to form a pair of opposing detent guide plates 23, 23. The distance B between the two guide plates 23 is slightly larger than the width between two opposing side surfaces 3a of the cap nut 3 (see FIG. 1), and the notch 1 of the lower plate 15 as described above.
9 is a portion under the neck of the cap nut 3, that is, the screw portion 2a.
When the two guide plates 23, 23 are in contact with the opposing side surfaces 3a, 3a of the cap nut 3,
The rotation of the mounting bracket 11 with respect to the cap nut 3 is prevented. With such a configuration, the attachment / detachment operation of the sacrificial anode member 12 to be described later with respect to the cap nut 3 is extremely easily performed. In the figure, reference numeral 24 denotes a reinforcing rib.

The sacrificial anode member 12 is formed in a cylindrical body from a metal material such as Zn or Mg which has a higher tendency to corrode than iron, and has a female screw hole screwed into the screw shaft 17 of the mounting bracket 11 at the center of the end. 25 are provided. As shown in FIG. 3, the sacrificial anode member 12 has the female screw hole 25 screwed to the screw shaft 17 via the washer 26, and is attached to the mounting bracket 11 in a posture in which the washer 26 abuts the protruding end of the elastic claw 18. Assembled.

Then, as shown in FIG. 3, holding the mounting bracket 11 with the sacrificial anode member 12 assembled therein, the notch 19 is screwed into the saddle-distribution faucet 2 which is the lower part of the cap nut 3. When engaged with the portion 2a, the side edges 20 and 20 and the inner peripheral edge 21 of the notch 19 are locked to the lower surface of the cap nut 3 as described above, and the detent guide plates 23 and 23 are engaged. Opposite side surfaces 3 of cap nut 3
Since the mounting bracket 11 is engaged with the a and 3a in a contact state, the mounting bracket 11 is locked and held in a state where the rotational movement is prevented with respect to the cap nut 3. When the sacrificial anode member 12 is rotated and screwed into the screw shaft 17 in this state, the elastic claw 8 is pushed down via the washer 26, and the tip 8 a is pressed against the upper surface of the cap nut 3. As a result, the elastic claw 8 and the notch 1
The sacrificial anode member 12 and the cap nut 3 are electrically connected to each other through both side edge portions 20 and 20 and the inner peripheral edge portion 9, and the sacrificial anode member 12 exhibits an anticorrosion effect. Moreover, the mounting bracket 11 can be easily removed simply by loosening the screw of the sacrificial anode member 12.

FIG. 7 shows a modification of the mounting bracket 11, in which detent guide plates 23, 23 are formed by plate members 22, 22 which are bent inwardly and upward from both side edges of the lower plate 15 to be connected to each other. .

In the above-described embodiment, an example is shown in which the mounting bracket 11 is mounted on the cap nut 3 of the saddle faucet 2. However, the mounting device 10 of the present invention is like a head of a mounting bolt of a water pipe joint. The mounting bracket 11 is attached to a lower part of the neck, that is, a mounting part having a constricted part, and can be used to mount the sacrificial anode member 12.

[0013]

As described above, according to the mounting device of the present invention, the sacrificial anode member can be detachably attached to the cap nut of the saddle water tap of the water main pipe buried in the soil or the head of the mounting bolt of the joint. This is advantageous in that it can be easily attached and detached with one hand operation.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a device for mounting a sacrificial anode member according to the present invention.

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

FIG. 3 is a front view showing an assembled state of the attachment device.

FIG. 4 is a plan view of a mounting bracket which is a main part of the mounting device.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 4;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 4;

FIG. 7 is a perspective view showing another embodiment of the mounting bracket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water main pipe 2 Saddle tap 3 Cap nut 10 Mounting device 11 Mounting bracket 12 Sacrificial anode member 13 Main body 14 Upper plate 15 Lower plate 16 Connecting part 17 Mounting screw shaft 18 Elastic claw 19 Notch part 22 Plate material 23 Detent Guide plate 25 Female screw hole 26 Washer

Claims (4)

[Claims] 1. A body formed by bending a conductive metal plate into a U-shape or a U-shape, wherein one end of an opposing upper plate and one end of a lower plate are integrally connected by a connecting portion, A mounting screw portion protrudes from a central portion of the upper plate, and a plurality of elastic claws formed by punching a peripheral portion thereof and bending the same upward are provided. The lower plate has a mounting portion for a sacrificial anode member. A non-rotating guide plate which is formed in a bifurcated shape having a cutout portion which engages with a lower part of the neck of the mounting plate, and which engages with a side surface of the mounting portion on either the upper plate or the lower plate. Is provided, and the elastic claw is pushed down by the sacrificial anode member screwed to the mounting screw portion to be pressed against the mounting portion, and the sacrificial anode member and the mounting portion are electrically connected via the elastic claw. Characterized in that it is configured to conduct. Mounting device of the sacrificial anode member. 2. The mounting device for a sacrificial anode member according to claim 1, wherein the rotation-stop guide plate is formed of a plate material which is bent downward from both sides of the upper plate and is continuously provided. 3. The mounting device for a sacrificial anode member according to claim 1, wherein the rotation-stop guide plate is formed of a plate material that is bent upward from both sides of the lower plate and connected to each other. 4. The mounting device for a sacrificial anode member according to claim 1, wherein said elastic claws are provided radially around said mounting screw portion.