JPS6139864B2 - - Google Patents

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a painting tool for power transmission line towers, in which a painting part and a paint tank are attached to an operating rod made of an electrically insulating material, and an air pump is operated to remove the paint from the paint tank. When painting a steel tower member while feeding the paint to the painting part, the paint can be reliably fed to the painting part regardless of whether the operating rod is oriented upward or downward.

(Background of the Invention) Power transmission line towers are exposed to wind and rain in the open air, and are subject to severe corrosion. Therefore, it is necessary to regularly apply anti-rust coating. Painting of power transmission line towers is carried out at high places and in electrically hazardous areas. Conventionally, such painting was done by constructing the work site by constructing scaffolding or stringing safety ropes at strategic points on the tower. Painting work was carried out while moving around the work site, holding onto ropes while holding brushes and paint containers. However, this method requires transporting construction materials such as scaffolding to the site, hoisting them onto the steel tower, attaching them to the tower, and dismantling and transporting them after the work is completed, which is not only inefficient but also extremely costly. This required material and transportation costs. Moreover, safety was not sufficient, and in reality, painting work was always done after a power outage near live power lines. In particular, this type of power transmission line tower has been increasing in size in recent years as the transmission voltage has increased, so the conventional method described above has been forced to build larger and more sturdy scaffolding, etc. The above-mentioned drawbacks are becoming more and more noticeable.

(Purpose and Overview) Therefore, the present invention has been made for the purpose of providing a painting tool that enables the painting of steel towers to be carried out safely and efficiently with light work without constructing the above-mentioned scaffolding etc. . To this end, the present invention provides a painted part consisting of a painted body such as a brush having a shape that conforms to and contacts the surface of a member constituting a steel tower at the tip of an operating rod made of an electrically insulating material, and By installing a paint tank that supplies paint and operating the air pump operating tool while holding the operating rod, the worker can perform painting work on the tower while pumping the paint in the paint tank to the painting area. This is what I did. In addition, this type of painting work performed on steel towers is performed with the operating rod pointing upwards or downwards, so no matter which direction the operating rod is oriented, paint can be reliably delivered from the paint tank to the painted area. Must be able to deliver. For this purpose, in the present invention, the paint tank is made into a long shape and installed along the length of the operating rod, and the paint tank has valves on both sides inside thereof that communicate with the paint pouring pipe. A mouth is formed, so that the paint in the paint tank can be reliably fed to the painting section regardless of whether the operating rod is oriented upward or downward.

(Example) Hereinafter, an example of the present invention will be described along with the drawings.

FIG. 1 shows a painting tool according to the present invention, in which reference numeral 1 denotes an operating rod, which is made of a material having sufficient electrical insulation and strength, such as FRP. Reference numeral 2 denotes a painted part rotatably connected to the tip of the operating rod 1 via a universal joint 3, and a frame body 2a having an arcuate cross section and made of an electrically insulating material such as vinyl chloride resin. and the frame 2a
It consists of a brush 2b as a coating body attached to the inner surface (see also Fig. 2). Reference numeral 4 denotes a pipe-shaped member constituting a power transmission line tower, and the coating portion 2 is fitted onto the member 4 to be painted, and the brush 2b of the coating portion 2 is the surface to be painted of the member 4a. The inner diameter of the coated part 2 is made approximately equal to the outer diameter of the member 4 so that it contacts the outer peripheral surface.

Reference numeral 5 denotes a long paint tank, which is attached near the tip of the operating rod 1 along the length direction of the operating rod 1 with a fitting 6, from which flexible paint is fed. The pipe 7 is extending. The pipe 7 branches into two paint pouring pipes 7a and 7b in the middle, and the tips of each pouring pipe 7a and 7b face the painting section 2. That is, each pipe 7
The tips of a and 7b penetrate the side surface of the frame 2a and are embedded inside the brush 2b, and the paint tank 5
The paint is pumped from the tips of the spouting pipes 7a and 7b to the brush 2b and the member 4.
oozes onto the contact surface.

The paint tank 5 includes an elongated cylindrical body 5a and a body 5.
It consists of a lid part 5b which is removably attached to a and a lid part 5b, and the paint can be replenished by removing the lid part 5b. A pipe 8 is disposed in the paint tank 5 in its lengthwise direction, and its tip communicates with the pipe 7. Reference numerals 9 and 11 are paint liquid feeding port portions consisting of valves; one liquid feeding port portion 9 is located at the side end of the pipe 8, and the other liquid feeding port portion 11 is provided with a lock from one side of the pipe 8. Pipe 10 protruding into the mold
The liquid feeding ports 9 and 11 are located at the tip of the tank 5.
It is located on both sides of. Reference numeral 12 denotes an air pump, which is connected to the paint tank 5 and a flexible air pipe 13. 14 is a check valve. The rear end of the air pump 12 is connected to its operating tool 1 via a pipe 14.
5 is connected. The operating tool 15 is a hollow ball-shaped body made of an elastic material such as rubber, and by holding it in the hand and repeatedly compressing it, air sucked in from a pipe 16 behind the operating tool 15 is forced into the paint tank 5.

This painting tool is constructed as described above, and its handling will now be explained.

The operator pulls up the painting tool onto the tower, holds the rear end of the operating rod 1 while standing on the step bolt of the tower, and fits the painting part 2 onto the member 4 as described above. (see figure). Next, when you hold the operating tool 15 in your hand and perform a compression operation, air is forced into the paint tank 5 through the air pump 12 and air pipe 13, and the air pressure sends the paint in the paint tank 5 through the pipe 7 to the painting section 2. and is discharged onto the surface of the member 4 from the tips of the spouting pipes 7a, 7b. Then, the operator applies paint to the surface of the member 4 by sliding the brush 2b of the coating section 2 along the member 4 while keeping it in contact with the member 4 while pushing and pulling the operating rod 1.

When painting the upper member 4 with the operating rod 1 facing upward, the lower liquid feeding port 9 is opened and the upper liquid feeding port 11 is closed, as shown in FIG. 4a. The air pressure of the air pumped from 13 is applied to the liquid level of the paint tank 5, and the paint is fed from the liquid feed port 9 through the pipe 8 to the coating section 2. Also, with the operating rod 1 facing downward, the lower member 4
When painting, as shown in Fig. 4b, in contrast to the above, the liquid feed port 9 is closed and the liquid feed port 11 is opened, and the air pressure applied to the liquid surface causes the paint to flow through the liquid feed port. 11, passes through pipes 10, 8, and 7, and is sent to the coating section 2.

As described above, this painting tool does not require special construction of scaffolding, etc., is extremely easy to handle, and allows light work to be carried out efficiently and safely. Regardless of whether the paint is oriented upward or downward, the paint can be reliably fed to the coating section 2 from the liquid feeding ports 9 and 11 provided on both sides inside the paint tank 5 to perform the painting work.

(Other Embodiments) FIG. 5 shows a coated part applied when the member constructing the power transmission line tower is an angle member with a hook-shaped cross section. The frame bodies are a key-shaped frame body 21a and a frame body 21.
It consists of a key-shaped frame 21b rotatably connected to the frame 21a by a pin 22, and brushes 21c and 21d are attached to the inner surface of each frame 2.
The tips of pouring pipes 23a, 23b, 23c, and 23d connected to the pipe 7 are attached to 1a and 21b. The angle material 20 is sandwiched between the frame bodies 21a and 21b, and the frame bodies 21a and 21b are fixed to each other with bolts and nuts 24, so that the brushes 21c and 21b are brought into contact with the surface of the angle material 20. Such a painted part 21 is made of angle material 20
Although it has the disadvantage that it is more troublesome to attach and detach it than the first embodiment, it has the advantage that the entire surface of the angle material 20 can be coated at once.

FIGS. 6a and 6b show still another embodiment, in which the present painting tools 30 and 31 have hook-shaped frames 30a and 31a, and outer and inner convex surfaces of the frames 30a and 31a, respectively. Installed brush 30
b, 31b, each brush 30b, 3
1b is brought into contact with the inner concave surface and outer convex surface of the angle material 20 for painting. As is clear from the above examples, the shape of the painted part according to this discussion is not limited to a specific shape, and any shape can be used as long as it can reliably come into contact with the painted surface of the steel tower member. It may be a shape.

The present invention can further be modified in various ways, including
For example, the insulating rod may be made of a telescopic tube so that its length can be adjusted freely, or a porous elastic sponge may be used as the coating body instead of a brush.

(Effects of the Invention) As explained above, according to the painting tool according to the present invention, there is no need to construct scaffolding etc. on the power transmission line tower, and painting work can be performed safely and efficiently with light work. especially the paint tank 5.
Since liquid feeding ports 9 and 11 consisting of valves that communicate with the paint pouring pipes 7a and 7b are provided on both sides of the inside of the paint part, no matter whether the operating rod 1 is oriented upward or downward, the painted part is not affected. Paint can be reliably fed to No. 2 and painting work can be performed without any trouble.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is an overall side view of the painting tool, Figure 2 is a plan view of the main part, Figure 3 is a side view in use, Figures 4a and b are sectional views of the main part, and Figure 5 is another embodiment of the present invention. FIGS. 6a and 6b are sectional views of main parts of still another embodiment of the present invention. 1... Operating rod, 2, 21, 30, 31... Painted part, 2a, 21a, 21b, 30a, 31a...
Frame body, 2b, 21c, 21d, 30b, 31b...
...brush as a painted body, 4,20...steel tower member,
5...Paint tank, 7a, 7b, 23a, 23
b, 23c, 23d...Paint pouring pipe, 9,1
1...liquid feeding port, 12...air pump, 13...
Air pipe, 15... operating tool.

Claims (1)

[Claims] 1. An operating rod made of an electrically insulating material, a painted part rotatably attached to the tip of the operating rod,
A long paint tank is provided along the length of the operating rod, and the painted part is formed from a frame body that comes into contact with the painted surface of the steel tower member and a painted body that is attached to the frame body. At the same time, the tip of the paint pouring pipe of the paint tank is made to face the painting section, and liquid feeding ports consisting of valves communicating with the paint pouring pipe are provided on both sides of the inside of the paint tank. A tool for painting a power transmission line tower, wherein the paint tank is provided with an air pump for pumping air through an air pipe, and an operating tool for the air pump is provided at a position where it can be operated by a worker holding the operating rod.