JP3752274B2 - Sacrificial anode for saddle-type water faucet - Google Patents

Description

[0001]
[Field of the Invention]
The present invention relates to a sacrificial anode used to prevent corrosion of buried pipes for water supply and piping equipment, and more particularly to a sacrificial anode that can be detachably attached to a saddle-type water faucet.
[0002]
[Prior art]
Metallic pipes embedded in soil such as water supply pipes are subject to corrosion batteries formed by non-uniform soil environment, contact with dissimilar metals, etc., and corrosion due to stray currents. In recent years, stainless steel pipes are often used for water supply pipes themselves, and the problem of corrosion is reduced. However, so-called saddle-type water faucets used for branching parts of drain pipes are generally made of gun metal, which is more susceptible to electrochemical corrosion than stainless steel. For example, the cap portion of the water faucet may corrode, causing problems such as water leakage and water contamination.
[0003]
[Problems to be solved by the invention]
By the way, the galvanic anode system which connects a base metal to this to a to-be-protected body and gives a corrosion-proof electric current using the potential difference between both is known. It is an object of the present invention to provide a sacrificial anode that can be detachably attached to a saddle type water faucet in order to prevent corrosion of the saddle type water faucet by utilizing this galvanic anode method.
[0004]
In order to solve the above-mentioned problem, the sacrificial anode used by being attached to the water faucet in order to prevent the saddle water faucet of the present invention from being corroded has a base, that is, a higher ionization tendency than the material of the saddle water faucet. A block-shaped anode body made of metal and having at least one flat portion is detachably attached to a cap of a saddle type water faucet with a mounting plate and a band member coupled thereto. The mounting plate receives the flat portion of the anode body on the upper surface side, and on the lower surface side, a flat base portion that can be placed on the cap of the saddle-type water faucet, and the lower surface side on one side of the outer periphery of the base portion And a bent portion that extends along the outer periphery of the base portion. The band member is coupled to both ends of the bent portion of the mounting plate at both ends, and surrounds the outer periphery of the cap of the water faucet in cooperation with the bent portion. The anode body is appropriately fixed to the mounting plate by mounting means, and the bent portion of the mounting plate and the band member are appropriately coupled by coupling means.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the embodiments described below.
[0006]
FIG. 1 is an exploded perspective view of a sacrificial anode according to an embodiment of the present invention. The sacrificial anode 1 includes an anode body 3 made of a base metal having a high ionization tendency, which is zinc in this embodiment. The anode body 3 is a block having at least one flat surface, that is, a flat portion 5, and is formed in a substantially cylindrical shape as a whole in this embodiment. A female screw 7 is engraved at the substantially central portion of the circular plane portion 5 toward the inside perpendicular to the plane portion 5.
[0007]
Reference numeral 9 is an attachment plate for attaching the anode body 3 to the saddle-type water faucet, and is made using a thin structural steel plate. The mounting plate 9 includes a base portion 11 having a substantially circular outer shape, and a central portion of the base portion 11 is a pedestal portion 12 that is formed so as to protrude upwards concentrically with the outer shape of the base portion 11. The anode main body 3 is placed on the pedestal portion 12, and a male screw 19 that engages with the female screw 7 of the anode main body 3 is set at a substantially central position of the pedestal portion 12 using caulking, press fitting, welding, or other appropriate means. It is installed.
[0008]
Reference numeral 13 denotes a bent portion that is bent at a substantially right angle in the opposite direction to the extension of the male screw 19 on the lower half side of the base portion 11 on one half-side of the outer periphery of the base portion 11, and its height is It is determined according to the height dimension of the cap of the saddle-type water faucet to which the sacrificial anode 1 is attached. Both end portions 14 and 15 of the bent portion 13 are bent outward in the radial direction of the base portion 11. A hole 16 is formed in one end portion 14, and the other end portion is bent in an arc shape. A plurality of tongue-like locking portions 17 bent inward in the radial direction of the base portion 11 are provided at the lower edge portion of the bent portion 13, two in this embodiment, separated in the circumferential direction. ing.
[0009]
Reference numeral 25 denotes a substantially band-shaped band member coupled to the mounting plate 9, which is also made using a structural steel plate and is formed in an arc shape. In the present embodiment, three tongue-shaped locking portions 27 are separated from the upper edge portion in the circumferential direction, and two tongue-shaped engagement portions are also separated from the lower edge portion in the circumferential direction. The locking portion 28 is bent at a substantially right angle inward in the radial direction. One end portion 29 is bent outward, and a female screw 30 is formed corresponding to the hole 16 in one end portion of the bent portion 13 of the mounting plate 9, and the other end portion 31 has the mounting member 9. A square hole 32 into which the other end 15 of the bent portion 13 can be inserted is formed.
[0010]
Reference numerals 35 and 37 are nuts and washers used to connect one end portion 14 of the bent portion 13 of the mounting plate 9 and one end portion 29 of the band member 25. Reference numeral 41 denotes a metal washer placed on the pedestal portion 12 of the mounting plate 9, and a hole 43 through which the male screw 19 passes is provided at the center.
[0011]
FIG. 2 is a sectional view showing a state in which the sacrificial anode 1 of this embodiment is attached to a saddle-type water faucet. Prior to the description, FIG. 2 shows an example of a saddle-type water faucet to which the sacrificial anode 1 is attached. 3, the saddle-type water faucet 101 has upper and lower saddles 103 and 105, which sandwich a water main (not shown) and are attached with bolts and nuts 107 and 109. A water faucet 111 is attached to the upper saddle 103, and a water outlet 113 is provided. A through hole 114 is formed in the water faucet 111 in the vertical direction, and it branches off to the water outlet 113 on the way. A water faucet cap 117 is attached to the upper end of the through hole 114. After the upper and lower saddles 103 and 105 are attached and fixed to the water main, the cap 117 is removed, a drilling tool is inserted from the upper end opening 115 of the through hole 114, and a hole is made in the main. Pull out the tool and attach the cap 117. The sacrificial anode of the present invention is adapted to be attached to this cap.
[0012]
In order to attach the sacrificial anode 1, the base plate 11 of the mounting plate 9 is placed on the upper surface of the cap 117 of the saddle type water faucet 101. At this time, the locking portion 17 provided at the lower end of the bent portion 13 is positioned below the lower surface of the cap 117. In the present embodiment, the head of the bolt 19 protrudes from the lower surface side of the pedestal portion 12, but the pedestal portion 12 is raised from the base portion 11, so that it does not get in the way. The band member 25 is disposed so as to face the bent portion 13 of the mounting plate 9, and the bent portion of one end portion 15 of the bent portion 13 is inserted into the square hole 32 at one end portion thereof. At this time, the end 15 may be further bent using a tool in order to secure the latch. In this embodiment, the end 15 is bent outward, but may be bent inward.
[0013]
Next, the bolt 35 is passed through the washer 37 and the hole 16 in the end portion 14 of the bent portion 13, and screwed into the screw hole 30 of the band member 25 to be tightened. At this time, the lower locking portion 29 of the band member 25 is positioned below the lower surface of the cap 117, and the upper locking portion 27 is positioned above the upper surface of the base portion 11 of the mounting plate 9. Next, the washer 41 is placed in the hole 43 through the male screw 19, and finally the anode main body 3 is screwed into the male screw 19 with the female screw 7, thereby completing the attachment. The anode body 3 may be fixed to the mounting plate 9 first.
[0014]
If the sacrificial anode 1 is attached to the cap 117 of the saddle-type water faucet 101 as described above, the mounting plate 9 and the washer 41 made of a conductive material are formed between the sacrificial anode 1 and the saddle water tap 101. The sacrificial anode, which has a higher ionization tendency than the gun metal, becomes the anode and the saddle-type water faucet becomes the cathode, so that the saddle-type water faucet is prevented from corroding.
[0015]
In the above embodiment, the anode main body 3 has a cylindrical shape, but is not limited thereto. Moreover, although the structure of the internal thread 7 and the external thread 19 is used in order to attach the anode main body 3 to a mounting plate, it is not limited to this. A configuration may be used in which a shaft is used in place of the bolt and the hole is pressed into the hole. Further, a hooking piece provided with a claw portion that extends upward from the base portion 11 and the band member 25 of the mounting plate and that is bent inward may be provided. The configuration in which the bent portion 13 and the band member 25 are coupled is not limited to the above embodiment. For example, a configuration using two sets of bolts and nuts may be used. A cut extending downward may be used.
[0016]
【The invention's effect】
As is apparent from the above description, according to the present invention, a sacrificial anode that can be easily and detachably attached to a saddle-type water faucet is provided, thereby effectively preventing corrosion of the saddle-type water faucet. be able to. Since the structure is extremely simple, it can be provided at low cost. Moreover, since it is detachable, it is easy to handle and the sacrificial anode can be easily replaced. Further, if the anode main body is detachably attached to the mounting plate using screws or the like, the replacement work of only the anode main body can be simplified. If the mounting plate and the band member are used to hook not only the periphery of the cap of the water faucet but also the upper and lower surfaces, the attachment of the sacrificial anode to the cap becomes stronger and the external force It will not come off even if it works. Further, if the upper locking portion of the band member is positioned above the upper surface of the base portion of the mounting plate, the mounting plate may be bent even if a force in the direction of arrow A in FIG. 2 acts. Absent.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a sacrificial anode according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state where a sacrificial anode is attached to a cap of a saddle type water faucet.
FIG. 3 is a front view showing an example of a saddle-type water faucet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sacrificial anode 3 Anode main body 5 Planar part 7 Female screw 9 Mounting plate 11 Base part 12 Base part 13 Bending part 14, 15 End part 17 Locking part 25 Band member 27 Upper side locking part 28 Lower side locking parts 29, 31 End Part 30 Screw hole 32 Square hole 35 Bolt 37 Washer 101 Saddle-type water faucet 117 Cap

Claims (3)

In the sacrificial anode used by attaching to the water faucet to prevent corrosion of the saddle water faucet, the sacrificial anode is made of a metal having a higher ionization tendency than the material of the saddle water faucet , and has at least one flat portion. A block-shaped anode body, a planar base portion that receives the planar portion of the anode body on the upper surface side, and can be placed on the cap of the saddle-type water faucet on the lower surface side, and an outer periphery of the base portion A mounting plate that is bent to the lower surface side of the base portion on one side and extends along the outer periphery of the base portion, and is connected to both ends of the bending portion of the mounting plate at both ends thereof, A band member that surrounds the outer periphery of the cap in cooperation with the bending portion; an attachment means for attaching and fixing the anode body to the base portion; and the bending portion and the band member, The 牲陽 pole and a coupling means for securing the cap of the saddle diversion plugs, sacrificial anode. 2. The sacrificial anode according to claim 1, wherein the bent portion and the band member of the mounting plate each include a tongue-like locking portion extending radially inward from a lower edge portion of the mounting plate, A sacrificial anode, which is positioned below the lower surface of the cap when the sacrificial anode is attached to the saddle-type water faucet. 3. The device according to claim 2, wherein the band member includes a tongue-shaped engaging portion extending radially inward from an upper edge portion of the band member, and the engaging portion attaches the sacrificial anode to the saddle type water faucet. A sacrificial anode that is positioned above the upper surface of the base portion in the vicinity of the outer periphery of the base portion of the mounting member when mounted.

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