JPH0516217Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to an anode mounting holder used for anode rust prevention, which is a type of electrical rust prevention.

[Conventional technology]

Rust occurs when an electrolyte such as water, air, or acid reacts with metal electrochemically. Free electrons of various metals are taken away by the electrolyte and the number of electrons decreases, causing the metal to melt and become brittle. The theory behind rust is that it changes its properties. Therefore, electric rust prevention, which suppresses rust by passing an electric current through the metal and replenishing electrons, is used for ships, pipelines, etc.
Used for tanks, etc. Especially in electrical rust prevention, anode (sacrificial anode)
Rust prevention is effective, and an aluminum alloy anode is bolted to the metal or attached with double-sided tape to send current from a power source connected to the anode to the metal, or by changing the potential of the aluminum. It is used to generate an electric current, which sends electrons to the metal. The anode has an insulator insulator attached to its back and supplies current when the humidity gets high (see Figure 6), and an intelligent anode (Figure 7) equipped with a humidity sensor and probe wire. There are types of sacrificial anodes that use an external power supply method such as (see figure).In the case of intelligent anodes, the energizing probe wire connected to the humidity sensor is passed through the insertion hole made in the anode, and the front side of the anode is The probe wire is bent protrudingly to make line contact with the metal part, and electrons are sent from the probe wire when humidity is sensed, and electrons are sent from the anode when the metal part is electrically connected to the anode through the presence of water droplets.

[Problem that the idea aims to solve]

Depending on the metal product, the anode may be repeatedly attached and removed. for example,
This is a case where the anode is attached to a mold to prevent rust.When the anode is in use, it gets in the way, so it must be removed and set in the machine, and when not in use, the anode is attached to prevent rust. However, if the anode is bolted, it takes time to attach and remove it, and if it is attached with double-sided tape, the tape will not adhere properly and cannot be used again. Therefore, the present invention provides a device that allows the anode to be easily attached and detached, and that also allows the anode to be reliably brought into contact with a metal surface.

[Means to solve the problem]

Therefore, in the present invention, the anode accommodating part is formed of a flexible material such as rubber, and magnets are fixed to each of the plurality of magnet mounting parts connected to the outer periphery of the anode accommodating part.
The tip attracting surface of the magnet is arranged on the same plane or at a slightly lower position than the contact surface of the attached anode, or the position of the probe wire projected toward the contact surface using an external power supply system.

[Effect]

By simply fixing the anode in the housing and touching the mounting surface to metal, the surrounding magnets will attract the anode and the anode will be mounted in contact with the metal. At this time, the attracting surface at the tip of the magnet should be at a position slightly lower than the abutting surface of the anode or the position of the probe wire protruding toward the abutting surface if a probe wire is used in combination with an external power supply system. Even if the holder is flexible, the magnet part bends and the anode is reliably pressed against the metal.

【Example】

Hereinafter, details of the present invention will be explained with reference to illustrated embodiments. The holder S of this example shown in FIGS. 1 and 2 has a circular housing plate part 1 made of flexible hard rubber and a peripheral wall part 2 thereof to form an anode housing part Sa, and is connected to the peripheral wall part 2. A magnet housing cylinder is placed on the outer periphery.
This is made up of three Sb protruding from each other at equal intervals, and each magnet 3 is inserted into the magnet housing cylinder Sb, and the magnet 3 is inserted with a screw 4.
The magnet 3 is fixed by screwing onto the threaded portion 3a of the magnet. The central part of the accommodation plate part 1 is a through-hole part 1a, and the tip attraction surface 3b of the magnet 3 is an accommodation cylinder.
It stands out a little due to Sb. This example holder S is a humidity sensor of an aluminum alloy intelligent anode K, as shown in Figure 3.
It is used by fixing Ka to the housing part Sa with adhesive 5 while protruding backward from the through hole 1a. In this state, the energizing probe wire Kb protrudes by the width E from the tip attracting surface 3b of the magnet 3. A cord Kc connected to the anode body and the sensor Ka extends rearward and is connected to a power source (not shown). As shown in Fig. 4, the holder S holding the anode K is attached to the base of the upper die 6 and lower die 7 of the mold. The anode K is attached with the probe wire Kb of the anode K in contact with the magnet 3 attracted thereto. At this time, even if the tip attracting surface 3b of the magnet 3 is at a position slightly lower than the position of the probe line Kb of the anode K, since the holder S has flexibility, the attracting force of the magnet 3 will cause the magnet accommodating part to
Since Sb is bent, the probe wire Kb is reliably pressed against the mold surface (see Fig. 5). Therefore, when the sensor Ka detects humidity, a current flows and the probe wire Kb supplies a minute current to the mold, which in turn sends electrons.
Additionally, the adhesion of water droplets establishes electrical conduction between the anode and the mold, allowing electrons to be sent from the anode. In addition,
The external power supply system may be intermittent by turning on and off the continuity from the probe line Kb at fixed time intervals using a timer, and serves as a sacrificial anode except when the external power supply system is operating. When the mold is used, the holder S is removed by removing the magnet 3 from the mold. As described above, according to this embodiment, the anode K is attached using the magnet 3, and even when the anode K is frequently attached and detached, such as in the case of a mold that is frequently used, it can be easily done. Although this example is configured as described above, the present invention is not limited thereto. For example, the holder may be made of any flexible material. Furthermore, the means for fixing the magnet to the holder is not limited, and may be fixed using a contact agent or the like. Furthermore, the number of magnet attachment parts is also appropriate. In addition, the shape of the anode accommodating part and the magnet mounting part,
The configuration does not matter as long as the magnet and anode can be fixed. Note that the type of anode is not limited, and the use of an insoluble anode is also included. In addition, in order to ensure contact with the anode, the contact surface of the attached anode is flush with or slightly protrudes from the attracting surface at the tip of the magnet.For an anode with a protruding probe wire, the position of the probe wire is set at the tip of the magnet. It may be placed on the same level as the suction surface or slightly protruded. Furthermore, the target product to which it is attached is also arbitrary.

[Effect of the idea]

According to the present invention, since the anode is attached by magnet attraction, it is easy to attach and detach the anode.

[Brief explanation of drawings]

Figure 1 is a plan view showing one embodiment of the present invention;
Figure 3 is a vertical side view of the anode, Figure 4 is a side view of the anode mounted on the mold, Figure 5 is an enlarged vertical cross-sectional view of the mounting surface, and Figure 6 is a vertical side view of the anode. The figure is a perspective view of a normal anode, and FIG. 7 is a perspective view of an intelligent anode. 1...Accommodating plate part, 2...Peripheral wall part, 3...Magnet,
3a...Thread part, 3b...Tip suction surface, 4...Screw, 6...Upper die, 7...Lower die, S...Holder,
Sa...Anode accommodating section, Sb...Magnet accommodating tube, K
...anode, Ka...sensor, Kb...probe wire.

Claims (1)

[Scope of utility model registration request] The anode accommodating part is formed of a flexible material such as rubber, and a magnet is fixed to each of the plurality of magnet mount parts connected to the outer periphery of the anode accommodating part. A mounting holder for a rust-preventing anode, characterized in that the attracting surface of the tip of the magnet is arranged on the same level or at a slightly lower position than the position of the probe wire protruding from the contact surface side.