JPH0789160B2 - Peeling device for concrete structure surface - Google Patents

Description

TECHNICAL FIELD The present invention relates to a peeling device for a surface of a concrete structure.

[Prior Art] For example, when dismantling a nuclear power plant, the surfaces of walls, floors, and ceilings, which are not highly polluted, were peeled off by a predetermined thickness (for example, 3 mm) by taking in the contaminated surface due to humans .

[Problems to be Solved by the Invention] However, in the above method, since the fishing operation is performed by inputting, the workability is poor, and the contaminants are diffused and the worker and the surroundings are exposed.

[Object of the Invention] Accordingly, an object of the present invention is to improve the workability in dismantling a nuclear power plant, for example, and to prevent the diffusion of the pollutant chamber to reduce the exposure of the worker and the surroundings of the concrete structure surface To provide a peeling device.

[Means for Achieving the Object] According to the present invention, a frame body provided with a roller body on one side, a triple bit chipping machine fixed to the frame body, and an elastic member interposed between the chipping machine and the chipping machine. And a rectangular hood body having a bit side opening and a chute projecting perpendicularly to the opening, and an end of the hood body bent inward except the chute side. A brush body provided on the edge, an elastic skirt body covering the outer periphery of the brush body, a sliding plate body projecting inward at the chute side edge, a lower end of the sliding plate body, and Peeling off the surface of a concrete structure, characterized in that an elastic skirt provided between the chute, a brush provided on the elastic skirt, a hose connected to the chute, and a hanging member are provided. A device is provided.

[Advantageous effects of the invention] Therefore, for example, at the time of dismantling of a nuclear power plant, the peeling device is hung by the hanging member and positioned on the wall surface from the roller body
The hood body is pressed against the wall surface by the elastic member, and the chipping machine is operated to separate the wall surface with good workability. At the time of work, connect the hose body to the blower device via the dust collector, and make the inside of the hood body negative pressure to directly generate dust or contaminants generated by peeling, or dust caught on the eyes of the brush body The air can be sucked into the body of the wind hood that flows at high speed between the eyes to prevent the diffusion of contaminants and reduce the exposure of the worker and the surroundings. On this occasion,
The roller body prevents the hood body from dancing due to the impact of the fishing machine, stabilizes the positioning of the bit, and
The elastic member can improve the workability by absorbing the impact from the impact of the fishing machine and preventing the impact from being transmitted to the hood body.

[Preferable Embodiments] In carrying out the present invention, it is preferable to use a known double handle type air hammer type as the splicing machine. With this configuration, both handles can be gripped to stably support the device.

In carrying out the present invention, it is preferable that the frame body is provided with means for making the position of the roller body movable. This way,
The position of the bit with respect to the wall surface can be adjusted.

In carrying out the present invention, it is preferable to use a closed type foam rubber plate such as neoprene as the elastic member.

In carrying out the present invention, it is preferable to provide an air inflow valve on the hood body. By doing so, the degree of adsorption to the wall surface can be adjusted by adjusting the negative pressure inside the hood body.

In carrying out the present invention, it is preferable to provide a peeling confirmation window on the side of the hood body facing the chute. This is convenient because the peeled state near the bit can be confirmed and the device can be moved.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, an air hose 4 is connected to one handle 3 of a known double handle type air hammer type 3-speed bit fishing machine 1, and a frame body is provided at both longitudinal ends of a main body 5. Character-shaped wall surface guides 6, 6 are fixedly installed. The upper arm 6a of the wall surface guide 6 is provided with a wall surface guide roller 7 which is a roller body, and can be moved in the arrow direction by, for example, a long hole (not shown) and a bolt. A hook 8 as a suspension member is fixedly mounted on the upper arm 6a via a bracket 8a, and suspended on a balancer rope 9 of a balancer mounted on a ceiling (not shown).

A dust collecting hood 11 which is a hood body is attached to an end surface of the main body 5 via a hood pressing pressure adjusting damper 10 of a closed type foam rubber plate such as neoprene which is an elastic member. The dust collecting hood 11 covers the bit 2 of the fishing machine, is formed in a rectangular shape with the bit 2 side opening, and a dust collecting chute 12 is provided on the bottom. The dust collecting chute 12 is a hose body. Hose 13 is connected. Further, a peeling confirmation window 14 provided with a transparent plate is provided on the upper surface, and an air inflow valve 15 is provided on the side surface. A brush 16 is projectingly provided on the inwardly bent portion 11a of the edge other than the dust collecting chute 12 side, and the outer periphery of the brush 16 is covered with a goth skirt 17 which is an elastic skirt body. In this brush 16, the bristles are parallel to the bit axis, the tips of the bristles are substantially flush with the tips of the bit 2, and the inner circumference is close to the outer circumference of the bit 2. On the other hand, dust collecting hood
A wall sliding plate 18, which is a sliding plate, is provided at the edge of the dust collecting chute 12 side of 11 which is substantially flush with the tip of the bit 2 and whose end is close to the outer periphery of the bit 2. A rubber skirt 19 is provided between the lower end of the and the dust collecting chute 13. The rubber skirt 19 is provided with a brush whose bristles are parallel to the bit axis and whose tip is substantially flush with the tip of the bit 2.

Next, the operation will be described.

For example, when dismantling a nuclear power plant, the balancer rope 9 is hooked on the hook 8, the device is hung so that the rubber skirt 17 of the dust collecting hood 11 and the sliding guide 18 come into contact with the wall surface W, and the dust collecting hose 13 is attached. The blower device and the compressor device are operated by connecting them to the blower device through a dust collector (not shown) and connecting the air hose 4 to the compressor device (not shown).

The handles 3 and 3 of the peeling machine 1 are grasped by both hands and the dust collecting hood 11 is pressed against the wall surface W to operate the peeling machine 1. Then, the inside of the dust collecting hood 11 is made negative by the suction pressure of the blower device, and the rubber skirt 17 and the sliding guide 18 are attracted to the wall surface. The degree of this adsorption can be adjusted by injecting air by the air inflow valve 15.

When the wall surface W is peeled to a predetermined depth with the bit 2 of the chipping machine 1, dust generated by the peeling, that is, a contaminant is directly caused by negative pressure, or dust caught between the eyes of the brush 16 passes between the eyes of the brush 16. It is sucked into the dust collecting hood 11 by an air flow indicated by an arrow A flowing at a high speed, guided from the chute 12 and the dust collecting hose 13 to the dust collecting device, and collected and collected. At this time, the wall surface guide 6 prevents the main body 5 from dancing due to the impact reaction of the chipping machine 1, stabilizes the position of the bit 2, and the hood pressing pressure adjustment damper 10 absorbs the impact of the hitting of the chipping machine 1. , Prevents the dust collection hood 11 from being transmitted and improves workability.

Then, the peeling condition of the bit 2 is confirmed through the peeling confirmation window 14 and the apparatus is moved. At this time, the wall surface guide roller 7 and the wall surface sliding plate 18 make the movement smooth, and the brush 16
Serves to scrape off the dust adhering to the wall surface W and suck it into the dust collecting hood 11.

[Summary] As described above, according to the present invention, for example, at the time of dismantling a nuclear power plant, the dust collecting hood covers the periphery of the bit and sucks the separated dust to suppress the diffusion to the minimum, thereby exposing the worker and the surroundings. Can be reduced. In addition, positioning can be stabilized by the wall surface guide that suspends the device, and the device can be moved to perform the peeling work by the fishing machine to improve workability.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a side sectional view showing a state of peeling work. W …… Wall surface, 1 …… Crane, 2 …… Bit, 6 …… Wall guide, 7 …… Wall guide roller, 8 …… Hook, 10
…… Hood pressing pressure adjustment damper, 11 …… Dust collection hood, 12
...... Dust collection chute, 13 ...... Dust collection hose, 16, 20 …… Brush, 17, 19 …… Rubber skirt, 18 …… Wall sliding plate

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yukio Sawa 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Masahiro Hata 1-2-7 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. (72) Inventor Shogo Nakagawa 2-16-27 Kotobuki, Abiko-shi, Chiba (56) Reference JP-A-60-107600 (JP, A)

Claims (1)

[Claims] 1. A frame body having a roller body on one side, a triple bit chipping machine fixed to the frame body, and attached to the chipping machine via an elastic member to cover the periphery of the bit. A rectangular hood body having a bit side opened and a chute protrudingly provided orthogonal to the opening, and a brush body provided on an end edge of the hood body bent inward except for the chute side, An elastic skirt body that covers the outer periphery of the brush body, a sliding plate body that projects inward at the chute side edge, and an elasticity that is provided between the lower end of the sliding plate body and the chute. Skirt body,
A peeling device for a surface of a concrete structure, comprising: a brush body provided on the elastic skirt body, a hose body connected to a chute, and a hanging member.