JP2000167496A - Cleaning cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the prevention of the scattering of a blast material and its recovery by forming a bottomed cylindrical cover with the tip opened, attaching a hose to the bottom wall of the cover and forming an outlet with the tip opened in the peripheral wall of the tip. SOLUTION: The main body 4 of a cleaning cover 2 is formed with a transparent acrylic resin sheet into an expanding bottomed cylinder and an opening is formed at the tip. A hole is formed in the center of the bottom wall 6 of the main body 4, a nozzle mounting bracket 8 is fastened to the hole by the bolt and nut 9, and the nozzle 1a of a hose 1 is pressed into the bracket 8 and fixed. Further, a notched blast outlet 10 with the tip opened is formed at the tip of the cover 2, the cover is abutted on a face to be cleaned with the outlet 10 directed downward, and the cleaning water mixed with the blast material is jetted into the cover 2 from the hose 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover for cleaning, and more particularly, to a cover for preventing the blast from being scattered during cleaning using a blast material.

[0002]

2. Description of the Related Art Conventionally, as a method of cleaning the surface of a member or the like, a cleaning water 102 mixed with a blast material (abrasive material) 101 is applied with a high pressure hose 10 as shown in FIG.
From 3 there is a method of spraying the cleaning surface of the member 104.

[0003]

In the above-mentioned conventional cleaning method, the blast material 1 sprayed together with the cleaning water is used.
01 scattered around the work place after hitting the cleaning surface of the member 104, and it was very difficult to clean and collect the blasted material 101 that was scattered. Further, the blast material 101
When an expensive resin material is used, it is desirable to collect and reuse it, but it is also difficult to collect it using the conventional method.

Accordingly, an object of the present invention is to provide a cleaning cover that can easily prevent blast material from scattering and recover.

[0005]

According to a first aspect of the present invention, in order to solve the above-mentioned problems, a hose is attached to a bottom wall of a bottomed cylinder having an open end. And an outlet opening at the tip is formed on the peripheral wall of the tip.

According to a second aspect of the present invention, in the first aspect, a skirt-shaped sub-cover made of an elastic material is provided at a tip end portion, and the outlet is formed in the sub-cover. According to a third aspect of the present invention, in the first or second aspect, a hole for bleeding air for releasing internal pressure to the outside is formed.

According to a fourth aspect of the present invention, in the first, second or third aspect, the main body is formed of a transparent material.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described based on an embodiment shown in FIGS. FIG. 1 shows a use state of a cleaning cover according to the present invention. A cleaning cover 2 is attached to a tip of a hose 1, and a front opening of the cleaning cover 2 has a front surface 3a of a member 3 to be cleaned, for example, a building member. Toward the tile surface 3a of the precast concrete plate,
High-pressure washing water mixed with a blast material is jetted out of the hose 1 and sprayed onto the tile surface 3a to form a tile surface 3a.
a is to be cleaned. The washing water mixed with the blast material is blown out through the hose 1 by a compressor (not shown) or the like, as is well known.

The cleaning cover 2 is shown in FIGS.
This will be described in detail. The cover main body 4 of the cleaning cover 2 is formed of a transparent resin plate, for example, a transparent acrylic resin plate, and has a shape of a bottomed cylinder having a flared shape. In the illustrated embodiment, the truncated square pyramid is formed,
It may be frusto-conical. By forming the transparent cover in this manner, the inside of the cleaning cover can be seen from the outside, and the weight is reduced to facilitate the work.

A hole 7 is formed at the center of the bottom wall 6 of the cover main body 4.
Is formed, and a nozzle mounting bracket 8 is mounted in the hole 7 with bolts and nuts 9. Further, a blast outlet 10 having an open front end is formed in a notch at the front end of the cleaning cover 2. In the embodiment shown in the figure, a skirt-shaped sub-cover 11 made of an elastic material such as rubber is fixed to the front end of the cover main body 4 with bolts and nuts 12, and the front end is opened at one end of the sub-cover 11. The blast outlet 10 which is notched as described above is formed.

Further, a hole 13 for venting air is formed in the cleaning cover 2, in the embodiment shown in FIG. Next, the use state will be described.

Normally, when a tile is applied to the surface of precast concrete, concrete is cast from the rear side of the aligned tile. Therefore, the cement filter of the concrete often goes around the tile surface through the joints and adheres to the tile surface. A case where the cement filter attached to the tile surface is washed will be described.

First, as shown in FIGS. 2 and 4, the nozzle 1a of the hose 1 is press-fitted and fixed to the bracket 8 attached to the cover main body 4 of the cleaning cover 2, and the sub-cover 11 of the cleaning cover 2 is fixed. With its blast outlet 10 facing downward, and is brought into contact with a cleaning surface, for example, the aforementioned tile surface 3a. Then, the washing water mixed with the blast material is jetted from the hose 1 into the washing cover 2.

[0014] The blasted material thus blasted is on the tile surface 3a.
The cement filter adheres to the filter, and the filter of the cement is peeled off. The blast material that has bounced off the tile surface 3a hits the inner surface of the peripheral wall of the cleaning cover 2, and then flows down the inner surface of the peripheral wall together with the washing water, and the blast material 15 flows out from the blast outlet 10 as shown in FIG. At this time, by disposing the recovery bucket 14 below the member 3 to be cleaned, the blast material 15 flowing out as described above is recovered in the recovery bucket 14 together with the cleaning water.

In the above-described cleaning, the cleaning cover 2 is moved along the tile surface 3a. However, since the sub-cover 11 is made of an elastic material such as rubber, the sub-cover 11 is The blast material is moved by bringing the blast material into contact with the tile surface 3a in a pressing manner, so that the cleaning cover 2 is moved.
It does not fly outside and does not damage the tile surface.

Since the air holes 13 are formed in the cleaning cover 2, the pressure in the cleaning cover 2 is released from the holes 13. Therefore, the pressure inside the cleaning cover 2 becomes high and the recoil of the cleaning cover 2 being pushed back to the side opposite to the tile surface 3a is reduced, and the recoil acting on the operator's hand is reduced and the cleaning operation is facilitated.

As a result of actually performing the cleaning using the cleaning cover 2, the recovery rate of the blast material was 95%, and the one without the cleaning bar as in the conventional case was 50%. The recovery rate was improved compared to.

Although one outflow port 10 is formed in the above embodiment, it may be formed on a plurality of sides of the peripheral wall as desired. In the above embodiment, the blast material is mixed with the cleaning water and jetted. However, the present invention can be applied to a cleaning method in which the blast material is jetted with air.

[0019]

As described above, according to the first aspect of the present invention, the cleaning cover of the present invention is attached to the hose, the tip of the cleaning cover is brought into contact with the cleaning surface, and the hose is blasted. By jetting the cleaning water mixed with the water at a high pressure, the blast material hits the dirt on the cleaning surface, and the dirt is peeled off and washed. At the time of this washing, the blasting material that has hit the washing surface and bounces off falls on the inner surface of the washing cover, and flows out of the outlet through the outlet. Therefore, by disposing the collection bucket below the cleaning surface, the blast material can be collected in the bucket and can be reused. Therefore, the recovery rate of the blast material is improved as compared with the above-mentioned conventional cleaning method, and it is particularly effective when an expensive blast material is used. Further, since the blast material does not scatter outside the cleaning cover, the conventional cleaning work of the scattered blast material becomes unnecessary.

According to the second aspect of the present invention, the cleaning surface can be prevented from being damaged by the sub cover made of the elastic material. According to the third aspect of the present invention, the pressure in the cleaning cover is released from the air vent hole, the recoil at the time of cleaning is reduced, and the work is facilitated.

According to the fourth aspect of the present invention, since the main body is made of a transparent material, an operator can see through the inside of the cleaning cover,
Cleaning work can be performed while checking the cleaning state.

[Brief description of the drawings]

FIG. 1 is a diagram showing a use state of a cleaning cover of the present invention.

FIG. 2 is a side view of the cleaning cover of the present invention.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a sectional view taken along line AA in FIG. 3;

FIG. 5 is a plan view of a cover main body in FIG. 2;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a perspective view showing a conventional cleaning method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hose 2 ... Cleaning cover 5 ... Opening 6 ... Bottom wall 10 ... Outflow port 13 ... Hole for air release

Claims (4)

[Claims] 1. A bottomed cylindrical shape having an open front end, and a hose attached to the bottom wall thereof.
A cleaning cover characterized by forming an outlet having an open end. 2. The cleaning cover according to claim 1, wherein a skirt-shaped sub-cover made of an elastic material is provided at a front end portion, and the outlet is formed in the sub-cover. 3. The cleaning cover according to claim 1, wherein a hole for releasing air for releasing internal pressure to the outside is formed. 4. The cleaning cover according to claim 1, wherein the main body is formed of a transparent material.