JPH07164352A - Dust-scattering prevention method and dust-scattering prevention device for dusting concrete between soils using an air breaker - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the fact that a large amount of curing is required to prevent the scattering of dust during the work of removing soil concrete by using an air breaker, which is troublesome and costly. [Structure] A chain in which a dust scattering prevention cover 2 having a double structure in which a wet rag 5 is sandwiched between an outer cover 3 and an inner cover 4 which can be ventilated around a chisel 9 of a body 1a of an air breaker 1 is slightly elongated The cover 2 is mounted movably up and down, and the cover 2 directly prevents scattering, and the cover 2 is placed and held by its own weight, and the cover 2 and the floor C
A simple and accurate structure is designed to prevent dust from scattering by always closing the gap between and.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust scattering prevention method and dust scattering prevention device for dusting earth-concrete concrete using an air breaker.

[0002]

2. Description of the Related Art The problem of dust scattering due to fleas is involved in the work of picking up soil concrete with an air breaker. In particular, in a factory that is in operation, dust scattering at the time of chipping adversely affects the working environment of the factory. Therefore, extensive curing is required to prevent dust scattering, which is time-consuming and time-consuming. In addition, when water cannot be sprinkled or the air duct outlet is too far away, it is difficult to prevent scattering.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve the above problems, and an object of the present invention is to provide a simple and accurate dust scattering prevention method and apparatus which can cope with all cases. That is, the present invention provides (1) a dust-scattering prevention cover having a double structure in which a wet rag is sandwiched between an outer cover and an inner cover that can be ventilated around a chisel of a machine in a chipping work using an air breaker. An earth-breaking concrete using an air breaker, which is mounted so as to be vertically movable via a chain, and prevents dust from scattering by the cover, and also constantly blocks the scattering of dust from the gap between the cover and the floor surface. Dust-scattering prevention method for chipping work, and (2) As if the air-breaker has a double structure dust-scattering prevention cover in which a wet cloth is sandwiched between the outer cover and the inner cover that can be ventilated around the chisel. An air breaker, which is provided with the dust scattering prevention cover attached to an air breaker body so as to be vertically movable via a chain. Dirt floor concrete by is a fishing work for the dust scattering prevention device.

[0004]

According to the present invention, the dust scattering prevention cover attached around the chisel of the air breaker has a double structure in which a wet rag is sandwiched between the outer cover and the inner cover which can be ventilated. , It directly collects the passage of dust generated during the chipping work and prevents the dust from scattering to the outside. Further, since the cover is attached so as to be movable up and down via a chain, even if a chisel enters and moves on the floor surface during the chipping work, the cover is placed and held so as to always block the floor surface due to its own weight and dust It is also prevented from leaking and scattering from the gap between the bottom surface of the cover and the floor surface.

[0005]

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a chipping work according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of components of a dust scattering prevention cover used in this embodiment. In the figure, 1 is an air breaker, 1a
Is a fuselage, 2 is a dust scattering prevention cover, 3 is an outer cover, 4
Is an inner cover, 5 is a wet cloth, 6 is a chain, 7 is a fitting, 9 is a chisel, W is an operator, and C is an earth concrete floor surface. Dust scattering prevention cover 2 used in the present invention
Has a double structure in which a wet cloth 5 is sandwiched between the outer cover 3 and the inner cover 4. The outer cover 3 and the inner cover 4 are formed in the same frusto-conical shape, and the inner cover 4 is formed smaller than the outer cover 3 so that the miscellaneous cloth 5 can be inserted into the large and small overlapped gaps. The outer cover 3 has a shallow cylindrical lid 3a and a tapered ventilation plate 3b at the bottom.
It is formed by welding. Further, a flea hole 9a through which a flea 9 of the air breaker 1 can penetrate is formed at the center of the cylindrical lid 3a, and an outer cover 3, an inner cover 4 and a wet cloth 5 are integrally fastened to the periphery thereof. There are three holes 8a for mounting screws 8 for mounting. Similarly, the inner cover 4 includes a cylindrical lid 4a having a chisel hole 9a and a mesh plate 4b.
Formed from. The wet cloth 5 is composed of a disk portion 5a having a chisel hole 9a in the center and a bandage portion 5b having six vertical cuts for easy cleaning. The outer cover 3, the wet cloth 5 and the inner cover 4 are integrally laminated, and the three mounting screws 8 provided upright on the inner cover 4
Then, the wet cloth 5 and the outer cover 3 are passed through the holes 8a at three positions, respectively, and tightened with nuts 8b from above. In addition, wet cloth 5
So that it doesn't dry and dust doesn't stick too much,
It is sometimes necessary to wash in a bucket of water.

As described above, the dust-scattering prevention cover 2 which is integrally superposed and fastened is suspended from the machine body 1a via the three chains 6 which are slightly elongated. At that time, the fleas 9 of the air breaker 1 are inserted into the overlapping fleet holes 9a of the prevention cover 2 with a clearance. Also,
The lower ends of the three chains 6 are attached to the upper part of the outer cover 120.
They are connected at a pitch of 120 °, and their upper ends are also connected at a pitch of 120 ° to a half-type mounting bracket 7 that is fastened and fixed to the upper part of the machine body 1a. The three chains 6 hold and hold the suspended cover 2 on the floor surface C by its own weight when the worker W puts the air breaker 1 upright on the soil concrete C for chipping work. And the chisel 9 is on the floor C
So that it can be placed and held as it is when moving into
It is slightly longer and has a slackable length. (FIG. 1) Thus, according to the present invention, as described in the above-mentioned section of operation, the dust generated by the chipping work is directly collected by the prevention cover 2, and the dust is collected on the bottom surface and the floor surface C of the cover 2. It is also prevented from leaking and scattering from the gap between.

[0007]

The expected effects of the present invention are listed below. 1. Immediately before entering the concrete of the air breaker flea,
Although dust is most likely to occur immediately after that, it is effective in preventing scattering because a protective cover can be placed and held around the chisel from the beginning to the end of the work. 2. Since it has a simple and accurate structure, the scattering prevention cost of the chipping work can be reduced, and the cleaning after the work can be easily done to improve the work efficiency. 3. When the present invention is used in combination with full-scale curing in the case of chipping work on the concrete floor surface, such as on the side of a machine during operation or in a place where dust generation is extremely disliked, a more effective scattering prevention measure can be obtained. Can be

[Brief description of drawings]

FIG. 1 is a perspective view of a picking operation according to the present invention.

FIG. 2 is an exploded perspective view of components of a dust scattering prevention cover.

[Explanation of symbols]

1 Air breaker 1a Airframe 2 Dust scattering prevention cover 3 External cover 3a Cylindrical lid 3b Ami board 4 Inner cover 4a Cylindrical lid 4b Ami board 5 Wet cloth 5a Disc part 5b Bandage part 6 Chain 7 Mounting bracket 8 Mounting screw 8a Hole 8b Nut 9 chisel 9a chisel hole W operator C soil concrete floor

Claims (2)

[Claims] 1. In a chipping operation using an air breaker, a dust scattering prevention cover having a double structure in which a wet rag is sandwiched between a ventilated outer cover and an inner cover is provided around a chisel of a machine body through a chain. Attached movably up and down, preventing dust from scattering by the cover, and always blocking dust from the gap between the cover and the floor surface. Shatterproof method. 2. A dust-scattering prevention cover having a double structure in which a wet rag is sandwiched between an outer cover and an inner cover, which can be ventilated around a chisel, of an air breaker is arranged so as to cover the dust. A dust scattering prevention device for sand concrete shaving work by an air breaker, characterized in that the prevention cover is attached to the air breaker body so that it can be moved up and down via a chain.