JPS5895559A - Moving wall surface treating device - Google Patents

Abstract

PURPOSE:To improve working environment and to reduce proportional cost by covering the circumference between a injection nozzle to a wall surface to be treated and preventing an injected material from scattering, and facilitating its recovery. CONSTITUTION:A titled device consists of a nozzle 5 which spouts an injected material 4 to the wall surface 2 of an iron structure body and performs a prescribed surface treatment, a cover 1 which covers the circumference from the nozzle 5 to the wall surface 2 and has a recovery opening 6 partially, and moving rollers 8 connected to the cover 1. Said rollers 8 roll on the wall surface 2 and also have magnets for attracting to the wall surface 2 at outer circumferential parts. This device improves working environment and reduces proportional cost.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a movable wall cleaning device used for cleaning or painting walls of steel structures such as bridges and tanks.

To clean the wall surface of the remains of a steel structure, there are two methods: sandblasting, in which sand with a predetermined particle size distribution is injected toward the wall i1 along with compressed air, or a system in which steel particles are used instead of sand and are strongly ejected onto the wall surface. Methods such as grid blasting and grid blasting are known.

However, in the sandblasting process, dust may accumulate around the transparent steel structure during cleaning, creating a poor working environment and making the work impossible. In addition, blast blasting and grid blasting generate dust, although not as much as sand blasting, which poses problems in the working environment.Furthermore, blasting agents such as blasting agents such as shield blasting and grid blasting are more expensive than sand, so they should not be used. Large-scale collection equipment was required to collect the waste. Also,
When cleaning existing steel structures outdoors, it is impossible to recover the blasting agent, so sandblasting has to be used, but as mentioned above, it worsens the working environment and poses a pollution problem. , there is a risk of

The purpose of the present invention is to eliminate such drawbacks of the prior art,
To provide a wall surface treatment device that does not cause the scattering of ejected materials, allows easy collection of the ejected materials, and can easily perform surface treatment on existing remains of iron structures.

In order to achieve this object, the present invention provides a nozzle for spraying a propellant such as a plasticizer or paint onto the wall surface of a transparent steel structure to perform a predetermined surface treatment, and a distance between the nozzle and the wall surface. a cover that covers the surrounding area and has a collection port in a part;
It is equipped with a plurality of moving rollers, each of which has a small number of magnets that roll on the wall surface and are magnetically attracted to the wall surface, both of which are located on the outer periphery, and which are connected to the cover.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a central sectional view of the wall cleaning device according to the embodiment, and FIG.
The figure is a rear view of it.

1 is a cover with a chevron-shaped cross section, and the side corresponding to the front side of the cover is open, and the wall surface 2 of the transparent steel structure to be cleaned is
is facing. Reference numeral 3 denotes a spraying part, which is attached to a portion corresponding to the rear part of the cover 1, and has a two-pronged nozzle 5 which rotates in a predetermined direction by utilizing the spraying energy of the plastic agent 4 sprayed onto the tip of the spraying part. Supported. A plastic collection port 6 is provided on the bottom surface of the cover 1 and is connected to the suction side of a vacuum pump (not shown). Moving rollers 8 made of permanent magnets are attached to the four corners of the front side of the cover 1 via brackets 7, respectively, and are magnetically attracted to the wall surface 2. The two upper moving rollers 8 are connected to each other by an upper rotating shaft 9 so that power can be transmitted thereto, and the two lower moving rollers 8 are connected to each other by a lower rotating shaft 10 so that power can be transmitted to each other. .

As shown in FIG. 2, sprockets 11 are attached to both ends of the upper rotation shaft 9 and one end of the lower rotation shaft 10, and a drive side connected to a drive shaft 12 is attached to the rear side of the cover 1. A sprocket 13 is provided. An endless chain 14 is hung between the drive side sprocket 13 and the left sprocket 11 of the upper rotating shaft 9, and between the right sprocket 11 of the upper rotating shaft 9 and the right sprocket 11 of the lower rotating shaft 10. It has been passed. Although not shown in the drawings, the drive shaft 12 is connected to a rotational drive source such as a motor capable of forward and reverse rotation via a manual handle or a speed reducer. 15 in Figure 1
is a rubber plate, which is attached to the side of the cover 1 facing the wall 2, and its tip comes into elastic contact with the wall 2 to maintain airtightness inside the cover 1.

Next, the operation of cleaning the wall surface will be explained.

The four moving rollers 8 rotate in the same direction by power transmission from the rotational drive source, and the cover 1 moves upward or downward along the wall surface 2 to be cleaned. At this time, the cover 1 is moved by the magnetic attraction force of each moving p-28.
does not slide on the wall 2 (moves as it rotates).

The plastic agent 4 is injected from the nozzle 5 toward the wall surface 2, and since the nozzle 5 is rotated in a predetermined direction using this ejection energy, the plastic agent 4 collides uniformly with the wall surface 2. This collision polishes the wall surface 2 to expose a clean surface, and the polishing agent 4 and polishing powder are collected by suction from the collection port 6. In the case of sheet blasting or grid blasting, the blasting agent and the polishing powder are separated after collection, and the blasting agent is circulated and reused.

In addition to the cleaning device, the mobile wall treatment device of the present invention can also be applied to a painting device, etc. In this case, the paint becomes a spray object, and the paint that does not adhere to the wall surface and the solvent of the paint are collected from the collection port. Ru.

Since the present invention can move any wall surface of a transparent steel structure by the magnetic attraction force and rotation of the moving roller, it is possible to easily move the wall surface of any steel structure transparent material that is large and difficult to transport. can be processed. In addition, since the area between the nozzle and the wall is covered with a cover, there is no scattering of the ejected material, and the ejected material can be easily collected, improving the working environment and reducing running costs. .

[Brief explanation of drawings]

FIG. 1 is a central sectional view of a wall surface cleaning device according to an embodiment of the present invention, and FIG. 2 is a rear view thereof. 1...Cover, 2...Wall surface, 3--Projected object, 4
...Plast agent, 5...Nozzle, 6...Collection port, 8...Moving roller agent Minoru Nakamura

Claims (1)

[Claims] 1. Spraying a projectile onto the wall of the steel structure body to perform a predetermined surface treatment; 5 nozzles; a cover that covers the area from the nozzle to the wall and has a collection port in a part; A movable wall surface treatment device comprising: a plurality of moving rollers connected to the cover, the movable wall surface treatment device having a magnet at least on an outer peripheral portion that moves and magnetically attracts the wall surface; and a plurality of moving rollers connected to the cover.