JPH08108149A - Wall surface cleaning apparatus - Google Patents

Abstract

PURPOSE: To prevent cleaning liquid from scattering by keeping the pressure of a case negative, attaching the case to a wall surface side, cleaning the wall surface by spraying cleaning liquid under high pressure from a nozzle in such a state that a holder and a sealing material contact the wall surface, and recovering the used cleaning liquid into the case. CONSTITUTION: A sealing material 20 is attached to the entire opening edge of the surrounding wall 5 of a case 8, holders 23 are attached to the upper and lower parts and the right and left parts of the wall 5, and the case 8 moves smoothly along the wall surface A at the same time when the holder 23 contacts the wall surface A to regulate the degree of contact of an inside seal 21 and an outside brush 22. The pressure of the case 8 is made negative by a vacuum pump so that the holders 23 and the sealing material 20 are contacted with the wall surface A to constitute a closed space by the case 8 and the wall surface A. Cleaning liquid is sent by a hydraulic pump through a hose 15, ejected from a nozzle 19, and sprayed on the wall surface A. The cleaning liquid splashing from the wall surface A is received in a liquid bank 27 without being scattered outside the case 8 and recovered by a hose.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cleaning walls of buildings and structures.

[0002]

2. Description of the Related Art The wall surface of a building or structure may be cracked, discolored, or soiled over time, so the wall surface may be repaired (rehome), repainted, or washed. In such a case, the wall surface is wiped with a high-pressure cleaning liquid for cleaning, chipping, and removal of adhering foreign matter.

In order to spray the above-mentioned high-pressure cleaning liquid onto a wall surface, an operator rides on a scaffold along the wall surface or a work vehicle at a high place, and the worker sprays the high-pressure cleaning liquid onto the wall surface with a high-pressure hand gun. .

[0004]

As described above, when an operator holds the high-pressure handgun and wipes the high-pressure cleaning liquid onto the wall surface, the cleaning liquid hits the wall surface and scatters, thus contaminating the operator and the surroundings. People can work only at night when they do not pass near the wall, and the cleaning liquid is wasted.

Therefore, an object of the present invention is to provide a wall surface cleaning device which can solve the above problems.

[0006]

A housing 8 having an opening 7
And the nozzle 1 mounted in the housing 8 toward the opening 7.
9, a seal member 20 continuously attached to the opening edge of the casing 8 over the entire circumference thereof, a support member 23 attached to the casing 8, and a first means for supplying a high-pressure cleaning liquid to the nozzle 19. A wall surface cleaning device comprising second means for sucking air in the housing 8.

[0007]

[Operation] The inside of the housing 8 becomes a negative pressure and is attracted to the wall surface A side, the support member 23 contacts the wall surface A, and the sealing material 20 contacts the wall surface A. Cleaning is performed by being wiped against the wall surface A, and the cleaned cleaning liquid is collected and collected in the housing 8, and the cleaning liquid does not scatter to an operator or the surroundings.

[0008]

[Example] As shown in FIGS. 1 and 2, a casing having an opening 7 formed by an upper wall 1, a lower wall 2, one side wall 3, and another side wall 4 and a substantially oval peripheral wall 5 and a vertical wall 6. There are eight. Although the upper wall 1, the lower wall 2, the one side wall 3, and the other side wall 4 are continuous and integrated, they may be separate bodies.

The vertical wall 6 has a pair of left and right handles 9 on the back plate 1.
0 and bolts 11 are attached, and a cylindrical body 12 is attached to the vertical plate 6 at the left, right, up and down middle, and a hose 15 is connected to the cylindrical body 12 via an elbow 13 and a swivel joint 14. The holes 12 a of 12 communicate with the inside of a pipe 16 provided in the housing 8.

Both end portions in the longitudinal direction of the pipe 16 have vertical walls 6
The pipe 16 is fixed to a pair of left and right mounting plates 18 mounted with bolts 17, both ends in the longitudinal direction of the pipe 16 are closed, and a plurality of nozzles 19 are spaced in the longitudinal direction toward the opening 7. Attached, hose 1
The high-pressure cleaning liquid pressure-fed from 5 is ejected toward the opening 7.

A seal member 20 is continuously attached to the opening edge of the peripheral wall 5 over the entire circumference. The seal member 20 is composed of an inner seal 21 and an outer brush 22 made of an elastic material such as rubber or synthetic resin. The outer brush 22 is in pressure contact with the wall surface A, and the inner seal 21 has a slight gap with the wall surface A, so that the contact portion between the housing 8 and the wall surface A does not allow the high-pressure cleaning liquid to flow but allows a small amount of air to flow. Thus, the cleaning liquid is prevented from leaking to the outside of the housing 8, and at the same time, the brush 22 cleans the wall surface.

A support body 23 is attached to the upper and lower sides of the peripheral wall 5, that is, to the left and right sides of the upper wall 1 and the lower wall 2, and the support body 23 is in contact with the wall surface A so that the inner seal 21 and the outer brush 22 are crimped. At the same time, the housing 8 is configured to move smoothly along the wall surface A.

The support member 23 has a mounting member 24 and a ball 25.
Is a ball caster rotatably mounted on the upper wall 1 and the lower wall 2 by a bracket 26.

A liquid reservoir 27 is provided on the lower portion of the peripheral wall 5, that is, the lower wall 2. The liquid reservoir 27 is connected to a hose 30 via a pipe 28 and a swivel joint 29 as shown in FIG. A pair of left and right hooks 31 are attached to the upper portion of the peripheral wall 5 of the housing 8.

As shown in FIGS. 3 and 4, the upper portion B of the wall surface A
A pair of temporary brackets 40 are attached to each other at a distance in the left-right direction, a drive pulley 41 and a first guide pulley 42 are provided on the one temporary bracket 40, and a driven pulley 43 is provided on the other temporary bracket 40. And a second guide pulley 44 is attached, a wire 45 is wound around the drive pulley 41 and the driven pulley 43, and an electric winch 47 is suspended on a moving body 46 connected to the wire 45.
The casing 8 is hung by a spring balancer 49 and a hanging wire 50 around a rope 48 that is wound up and fed out by the electric winch 47, and first and second manual ropes 51 connected to the moving body 46. , 52 are hung down via the first and second guide pulleys 42, 44.

As shown in FIG. 4, a vehicle body 60 of a vehicle C has a liquid pump 6 driven by an engine or an electric motor 61.
2. Vacuum pump 63, fresh water tank 64, and dirty water tank 6
5 are attached respectively, the suction side of the liquid pump 62 is connected to the fresh water tank 64, and the discharge side is connected to the hose 15.

The dirty water tank 65 is connected to the suction side of the hose 30 and the vacuum pump 63, sucks the air in the housing 8, and collects the cleaning liquid and foreign matters. Further, a filter filter 66 is provided at the outlet of the dirty water tank 65 so that foreign matters of the cleaning liquid collected by the hose 30 are captured by the filter filter 66 and only fresh water is sent to the fresh water tank 64 by the pump 67 and the hose 68. This makes it possible to reuse the washed cleaning liquid.

Next, the cleaning operation of the wall surface A will be described. The vacuum pump 63 sucks the air in the casing 8 to make the inside of the casing 8 a negative pressure so that the support member 23 and the sealing material 20 are in contact with the wall surface A and the casing 8
And the wall surface A form a closed space, and the hydraulic pump 6
The cleaning liquid is pressure-fed from the nozzle 2 through the hose 15, jetted from the nozzle 19 toward the wall surface A, and wiped onto the wall surface A.

As a result, the wall surface A is cleaned with high-pressure cleaning water, and the cleaning water that hits against the wall surface A and collects in the liquid reservoir 27 without splashing to the outside of the housing 8, and the cleaned cleaning liquid Are collected by the hose 30.

In the above-described cleaning operation, the casing 8 moves to the right in FIG. 3 together with the moving body 46 that pulls down the first manual rope 51, and when the second manual rope 52 is pulled down, the casing 8 moves together with the moving body 46. Moves to the left in Figure 3, so
The housing 8 can be moved left and right along the wall surface A. In this case, a rail may be attached between the left and right temporary brackets 40 without providing the wire 45, and the moving body 46 may be moved left and right along the rail.

In this operation, the drive pulley 41 may be rotated forward and backward by the drive motor to rotate the wire 45 left and right to move the moving body 46 left and right. The operator D on the table may hold the handle 9.

In the above-mentioned cleaning operation, the electric winch 47 winds the rope 48 and unwinds the rope 48 so that the housing 8
Can be moved up and down along the wall surface A, and by combining this operation and the above-described left and right movement operation, the housing 8 can be moved in the left and right direction and the up and down direction along the wall surface A.

In the above operation, the worker D on the work platform of the scaffolding or aerial work vehicle may move the casing 8 up and down while holding the handle 9.

FIG. 5 and FIG. 6 show a second embodiment, in which a pair of left and right blower housings 72 are attached to both left and right sides of the housing 8 via upper and lower brackets 70 and 71, and a fan 73 is provided in the blower housing 72. Is an electric blower 75 mounted so as to be rotationally driven by an electric motor 74, and air is discharged in the direction of arrow a in FIG. 5 by rotationally driving a fan 73 thereof.

In this way, thrust air F directed to the wall surface A is generated by the air discharged from the blower 75, and the thrust force F pushes the housing 8 toward the wall surface A, so that the wall surface A has irregularities.
When the seal member 20 is largely separated from the wall surface A when the support body 23 goes over the unevenness and the inside of the housing 8 does not become a negative pressure, the blower 75 is passed after the support body 23 passes through the unevenness.
The casing 8 is pressed against the wall surface A by the thrust F of the sealing material 2
0 comes into contact with the wall surface A, so that the inside of the housing 8 can be negatively pressured again.

In the above embodiment, the electric winch, the electric motor, the liquid pump 62, and the vacuum pump 63 may be controlled manually by an operator, or may be remote controlled using a wireless transceiver.

[0027]

The inside of the housing 8 becomes a negative pressure and is attracted to the wall surface A side, the support member 23 contacts the wall surface A, and the seal material 20 contacts the wall surface A. Is wiped against the wall surface A for cleaning, and the cleaned cleaning liquid is collected in the housing 8. Therefore, the cleaning liquid does not scatter to the worker or the surroundings, the work can be performed even in the daytime when people pass, and the cleaning liquid is not wasted.

According to the second aspect of the present invention, since the housing 8 is pushed toward the wall surface A side by the blower 75, the sealing material 20 and the wall surface A are largely separated by the unevenness of the wall surface A, and the inside of the housing 8 is under a negative pressure. Even if it becomes impossible, the casing 8 can be pressed against the wall surface A by the blower 75 when it moves to the flat wall surface A after that, and the wall surface A having irregularities can be cleaned.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a cleaning portion showing a first embodiment of the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is an overall front view of a cleaning portion showing the first embodiment of the present invention.

FIG. 4 is a vertical sectional view taken along line EE of FIG.

FIG. 5 is a side view of a cleaning portion showing a second embodiment of the present invention.

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

[Explanation of symbols]

 7 ... Opening 8 ... Housing 15 ... Hose 19 ... Nozzle 20 ... Sealing material 23 ... Bearing 30 ... Hose 62 ... Hydraulic pump 63 ... Vacuum pump 64 ... Fresh water tank 65 ... Waste water tank 66 ... Filtration filter 67 ... Pump 68 … Hose 75… Blower A… Wall surface.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takaho Inui 5-49-31 Yamamotoue, Hirakata, Osaka Prefecture (72) Inventor Shigeo Ohtani 2-22-10, Tachibanamachi, Amagasaki City, Hyogo Prefecture (72) Minoru Omori 3-48 Higashiyumi, Yao-shi, Osaka Prefecture

Claims (3)

[Claims] 1. A housing 8 having an opening 7, and the housing 8.
Nozzle 19 attached inside toward the opening 7, seal material 20 continuously attached to the opening edge of the casing 8 over the entire circumference, bearing 23 attached to the casing 8, and nozzle 19 A wall surface cleaning apparatus comprising a first means for supplying a high-pressure cleaning liquid and a second means for sucking the air in the casing 8. 2. The wall surface cleaning device according to claim 1, wherein a blower 75 that discharges air toward the side opposite to the opening 7 is attached to the body 8. 3. A fresh water tank 64 and the fresh water tank 64
The first means is a hydraulic pump 62 for pumping the fresh water in the inside, and a sewage tank 65 equipped with a filtration filter 66, a vacuum pump 63 connected to the sewage tank 65, the inside of the housing 8 and the sewage tank 65 are connected. Hose 30 and sewage tank 65
A second means is provided by a pump 67 for pumping the sewage therein into the fresh water tank 64 through a filter 66.
Or the wall surface cleaning device according to 2.