JPH047187Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a fixing pin for a linear electrode, and more specifically, a fixing pin for a linear electrode used in a cathodic protection device for reinforced concrete structures, etc. This invention relates to a fixing pin for a linear electrode that is provided with a through hole or a notch to ensure firm attachment and fixation.

[Prior Art] Conventionally, various means have been proposed for attaching and fixing linear electrodes to the surface of reinforced concrete structures and the like for cathodic protection.

As one such method, a method as shown in FIG. 4 has been proposed. This method uses grooves 8 on the surface of the structure 7.
is provided, and a filler 10 such as cement mortar or conductive mortar is filled while a linear electrode 9 is inserted.

In addition, fixing methods using fixtures include a method of fixing plate-shaped electrodes on the concrete surface (Japanese Patent Application Laid-open No.
199785) and a method in which a fixed part is pinned and a linear electrode is inserted as shown in FIG. 5 (Japanese Patent Laid-Open No. 199784). The method shown in FIG. 5 uses a fixing part (fixture) 11 having a fitting shape for fitting a linear electrode 13,
This fixing component 11 is fixed to the structure 7 with a pin 12.

[Problems to be Solved by the Invention] However, in the above-described conventional method for attaching a linear electrode, since the linear electrode 9 is packaged in a coil shape and has a curl in FIG. The work of pressing it into the groove 8 is often difficult;
Work on the underside of the concrete structure 7, such as the back of the floorboards, is particularly difficult.

Further, as shown in FIG. 5, the fixed part 11
When the wire electrode 13 is fixed to the structure 7 with the pin 12, the linear electrode 13 is lifted from the surface of the structure 7 by the thickness 14 of the fixed part, which reduces the anti-corrosion effect of the device. This method is not sufficient not only in terms of workability but also in terms of anticorrosion effect.

The purpose of this invention is to solve the above-mentioned problems when attaching and fixing conventional linear electrodes, and to fix the linear electrodes tightly to reinforced concrete structures etc., which is necessary for firmly fixing them. An object of the present invention is to provide a fixing pin for an electrode.

[Means for solving the problem] As a result of various studies to achieve the above-mentioned purpose, the present inventors solved the above-mentioned problem by using a fixing pin having a structure in which a through hole or notch is provided in the head. The present invention was completed after discovering that the problem could be solved.

That is, the present invention is a fixing pin for a linear electrode characterized by having a through hole or a notch provided in the head.

[Effect] The function of the fixing pin of the present invention is as follows.

That is, in the case of the fixing pin of the present invention that has a through hole in the head, insert the required number of fixing pins from one end of the linear electrode in a "target" shape, and then insert the fixing pins while untying the coil. Insert the fixing pins into the fixing holes one by one starting from the end.

In addition, in the case of the fixing pin of the present invention that has a notch in the head, the fixing pin is inserted into the fixing hole with the notch left, and the notch is inserted into the fixing hole while loading the linear electrode into the notch. Press lightly until it is covered.

If you drive the first terminal pin strongly, the through hole or notch of the pin will interfere with the fixing hole, and the wire electrode will be pinched and will not shift, but just in case, fold the end of the wire electrode back. good.

Next, when the wire electrode is pulled behind the last pin, the curl will be removed and it will stick to the wall surface, so the end will be fixed in the same way as the first pin, and the middle pins will be added in order to firmly fix the whole thing.

Note that a pin with an (umbrella-shaped) flange at the tip of the head has the effect of correcting lifting of the linear electrode when the pin is driven in too far.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

1 and 1 are front views of a fixing pin according to one embodiment of the present invention, and FIGS. 2 a and b are front views of a fixing pin according to another embodiment of the present invention, respectively. ' is a fixing pin, 2 is a through hole, 3 is a notch, and 4 is a collar.

In FIGS. 1 and 2, fixing pins 1 and 1' according to the present invention have a through hole 2 or a notch 3 in the head thereof for passing a linear electrode. Although the shape of this through hole 2 or notch 3 is arbitrary,
It is necessary that at least the linear electrode is completely attached and fixed to the structure.

Moreover, solid pins 1, 1' having a collar 4 as shown in FIG. 1b and FIG. 2b are preferable because they can stably fix the linear electrodes.

The fixing pins 1, 1' are preferably made of plastic or an insoluble metal such as titanium or tantalum.

Next, FIG. 3 is a longitudinal sectional view showing a state in which the linear electrode 5 is attached and fixed to the structure 7 using the fixing pin 1 of the present invention shown in FIG. 1b.

In the figure, a structure 7 such as a reinforced concrete structure is provided with a plurality of fixing holes 6 for the purpose of attaching and fixing linear electrodes 5, and the fixing pin 1 is inserted into the structure in these fixing holes 6. However, since the linear electrode 5 passes through the through holes 2 of the plurality of fixing pins 1, it is completely attached and fixed to the structure 7 by the fixing pins 1. . The linear electrodes, fixing pins, and structures fixed in this way are sprayed with conductive mortar, conductive paint, mortar cement, or the like to completely cover their surfaces.

[Effects of the Invention] As explained above, according to the present invention, by passing the linear electrode through the through hole or notch of the pin and applying tension, the curling of the linear electrode is eliminated, and the conventional reinforced concrete structure is This makes it possible to make the installation groove extremely shallow or omit it and firmly attach it to the surface, which has the effect of reducing construction costs and improving the anticorrosion effect.

[Brief explanation of the drawing]

FIG. 1 is a front view of a fixing pin according to an embodiment of the present invention, FIG. 2 is a front view of a fixing pin according to another embodiment of the present invention, and FIG. 3 is a front view of a fixing pin according to another embodiment of the present invention. A vertical sectional view showing a state in which a linear electrode is attached and fixed to a structure using the fixing pin of the present invention, and
FIG. 5 is a longitudinal sectional view showing a conventional example. 1, 1'...Fixing pin, 2...Through hole, 3...
Notch, 4... Tsuba, 5... Linear electrode, 6... Fixing hole, 7... Structure.

Claims (1)

[Scope of utility model registration request] A fixing pin for a linear electrode characterized by having a through hole or notch in the head.