JPH08257514A - Wall-surface cleaning device - Google Patents

Abstract

PURPOSE: To mechanize the cleaning of a signboard wall-surface such as a road mark, and thereby improve operating efficiency by ejecting a high pressure water from the jet nozzle on a scattering preventive cover, and washing a contaminant off the surface of a wall, and at the same time, sucking a foul water from the interior of the scattering preventive cover using a vacuum liquid discharge means. CONSTITUTION: When cleaning a signboard such as a road mark, a wall-surface cleaning device A is caused to approach the signboard B by operating a ladder on a vehicle for working at a high elevation as a first step, and a propelling member 1 is caused to advance by driving an air cylinder 3. Further, a scattering-preventive cover 9 is moved forward through a fluctuation bracket 4 and a slide base 6, and the interior of the scattering preventive cover 9 is hermetically sealed by attaching a rubber blade 10 to the surface of the signboard B airtightly. After that, a high pressure cleaning water is ejected from the jet nozzle of the mural cleaning device A by driving a vacuum pump and a high pressure pump on a recycle-type high pressure cleaning vehicle, and dust or dirt sticking to the signboard B is washed off. At the same time, a foul water is aspirated from the interior of the scattering preventive cover 9. Thus it is possible to improve operating efficiency and achieve the amelioration of a sanitary condition for the health of an operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall surface cleaning device which is preferably used for cleaning a wall surface of a signboard such as a road sign installed along a road.

[0002]

2. Description of the Related Art In general, roads on which roads are frequently visited are provided with road signs in order to ensure road safety and smooth traffic.

By the way, if a road sign is used for a long time, the road sign becomes dirty due to the adhesion of dust, mud, dirt or the like that is rolled up or splashed from the road, and its display function is significantly impaired.

Therefore, in order to restore the display function of the road sign, it is necessary to regularly clean the road sign to remove dust, mud, dirt, etc. attached thereto.

[0005] Conventionally, the cleaning of road signs is conventionally carried out manually by a worker who gets on a gondola type workbench provided at the tip of a ladder or boom of an aerial work vehicle.

[0006]

By the way, as described above, in the prior art, since the worker manually cleans the signboards such as road signs, the work requires a great deal of labor and time. Not only is it inefficient, but it is not very good for the health of the workers by inhaling dust scattered around them during work.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wall surface cleaning device that mechanizes the wall surface cleaning operation.

[0008]

In order to achieve the above-mentioned object, the present invention is formed in a box shape having an opening on the side facing a wall surface, and an elastic member is attached and fixed to the peripheral edge of the opening and the inside is injected. A scattering prevention cover provided with a nozzle and a discharge port, a cleaning liquid supply means connected to the jet nozzle, a vacuum drainage means connected to the discharge port, and a moving means for moving the scattering prevention cover along a wall surface. It is equipped with and.

Further, a filtering device is disposed between the cleaning liquid supply means and the vacuum drainage means to recycle the cleaning liquid.

Further, a rotating brush that rotates while contacting the wall surface by the water pressure of the jet nozzle is disposed inside the scattering prevention cover.

[0011]

The wall cleaning device of the present invention is attached, for example, to the tip of a ladder or boom of an aerial work vehicle, and is attached to the periphery of the opening of the shatterproof cover by operating the ladder or boom of the aerial work vehicle. The elastic member to be fixed is brought into close contact with the wall surface to seal the inside of the shatterproof cover, and air in the shatterproof cover is discharged from the discharge port to press the elastic member to the wall surface at atmospheric pressure. In this state, high-pressure cleaning water supplied from the cleaning liquid supply means was sprayed from the spray nozzle of the shatterproof cover to wash away the dirt on the wall surface with this high-pressure wash water, and at the same time to wash off the dirt on the wall surface inside the shatterproof cover. Sewage is sucked from the discharge port of the shatterproof cover by vacuum drainage means, filtered by a filter device, circulated and reused as washing water, and further, the shatterproof cover is moved by a moving means. It is moved along the surface, at the same time washed off the dirt of the wall continuously in the direction of movement scrapes off the dirt of the wall by an elastic member scattering prevention cover.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wall surface cleaning device of the present invention will be described below with reference to FIGS.
A description will be given based on an example shown in FIG. However, FIG. 1 is a front view of the wall surface cleaning device (A) of the present invention, and FIGS. 2 and 3 are a plan view and a side view thereof.

In FIG. 1 to FIG. 3, (1) is an advancing / retreating member which is held by a support base (2) so as to be able to advance and retreat in the front-back direction.
The cylinder head (3a) of the air cylinder (3) fixedly mounted on the support base (2) is connected, and the air cylinder (3) can be operated to move forward and backward.
(4) is a mounting bracket whose base end is pivotally attached to the advancing / retreating member (1) via a pivot (5) so as to be swingable in the horizontal direction, and a slide base (6) is attached to the pivot (7) at its tip. ) Is pivotally attached via a vertical axis. Therefore, the slide base (6) can swing horizontally and vertically with respect to the propulsion member. Reference numeral (8) is a slide member held by the slide base (6) so as to be slidable in the left-right direction, and can be slid in the left-right direction by the operation of an air cylinder (not shown) built in the slide base (6). it can. (9) is a box-shaped shatterproof cover that is attached and fixed to the slide member (8) and has an opening on the front side, and an elastic member such as a rubber blade (10) is attached and fixed to the entire periphery of the opening. Also, a shatterproof cover (9)
A washing water injection pipe (11) is opened and mounted and fixed on the upper surface, and a dirty water discharge pipe (12) is opened and mounted and fixed on the lower surface. (13) is a wash water pipe mounted and fixed above the inside of the shatterproof cover (9), the central part of which is connected to the wash water injection pipe (11) and both ends of the shatterproof cover (9) A pair of injection nozzles toward the opening side (14) (14)
Is attached and fixed.

The wall surface cleaning device (A) of the present invention is constructed as described above, and is attached and fixed to, for example, the tip of a ladder or boom of an aerial work vehicle, and the washing water injection pipe ( A washing water hose and a suction hose of a known recycling type high-pressure washing vehicle are connected to 11) and the sewage discharge pipe (12).

FIG. 4 shows a schematic structure of a recycle type high pressure washing vehicle. (15) is a washing water tank and (16) is a waste water tank. These tanks have a partition (18) inside the tank (17). ), The front and rear sides are used as a cleaning water tank (15) and the rear side is a sewage tank (16), and the tip of the sewage tank (16) has a wall surface cleaning device (A). )
The suction hose (19) of an appropriate length connected to the sewage discharge pipe (12) of the shatterproof cover (9) is connected,
A vacuum pump (not shown) is connected. The vacuum pump exhausts and decompresses the inside of the waste water tank (16), and the negative pressure thereof causes the suction hose (19) to pass through the waste water tank (16) and the waste water in the scattering prevention cover (9) of the wall surface cleaning device (A). Can be inhaled. Further, a sewage pump (20) is connected to the sewage tank (16), and the sewage pump (20) sucks sewage in the sewage tank (16) through a filter (21), and then a cyclone (22) to wash water. Transfer to the tank (15). In the cyclone (22), when sewage is sucked tangentially from the upper part of the cylinder at a predetermined speed, the sewage swirls along the inner wall surface and flows into the lower cone, where it gradually becomes an upward flow in the center. When turning around, it flows out of the upper discharge pipe into the wash water tank (15), while solid matter such as fine sand contained in the wastewater swirls inside, causing a large centrifugal force on the cylindrical wall surface. It collides, sinks, and falls into the wastewater tank (16). (23) is a hose reel mounted and fixed to the outer surface of the rear wall of the tank (17), and its tip is appropriately connected to the washing water injection pipe (11) of the scattering prevention cover (9) of the wall surface cleaning device (A). A length of washing water hose (24) is wound so that it can be pulled out and wound up. A high-pressure pump (25) is connected to the hose reel (23), and the high-pressure pump (25) pressurizes the wash water sucked from the wash water tank (15) through the filter (26) to obtain high-pressure wash water as a hose reel ( 23) Feed water to wash water hose (24)
Through the injection nozzles (14) and (14) of the cleaning water pipe (12) of the wall surface cleaning device (A).

Next, the work of cleaning a signboard such as a road sign in the wall surface cleaning device (A) of the present invention will be described.

First, the ladder or boom of the aerial work vehicle is operated to bring the wall surface cleaning device (A) close to the signboard (B) as shown in FIGS. 2 and 3, and then the air cylinder ( 3) is actuated to move the propulsion member (1) forward, and accordingly, the swing bracket (4) and the slide base (6).
The shatterproof cover (9) is advanced via the rubber blade (10), which is attached and fixed to the peripheral edge of the opening, is brought into close contact with the surface of the signboard (B) so that the shatterproof cover (9) is hermetically sealed. Even if the shatterproof cover (9) is not parallel and opposed to the signboard (B), the slide base (6) can swing in the horizontal and vertical directions. 9) Rubber blade (10) signboard (B)
Can be adhered to the surface of. Then, when the vacuum pump and high-pressure pump (25) of the recycle type high-pressure washing car are activated, the high-pressure water pump (25) causes the washing water tank (1
The washing water sucked from the 5) through the filter (26) is sent to the hose reel (23) as high-pressure washing water, passes through the washing water hose (24), and is supplied to the washing water pipe (12) of the wall surface cleaning device (A). Dust or mud that is sprayed from the spray nozzles (14) (14) and adheres to the signboard (B) by the high-pressure washing water,
Wash off dirt. At the same time, since the vacuum pump is also operating, the inside of the dirty water tank (16) is exhausted and decompressed, and the signboard (B) inside the shatterproof cover (9) of the wall surface cleaning device (A).
Sewage that has washed off dust, mud, soil, etc. adhering to it is sucked into the wastewater tank (16) through the suction hose (19) and is stored in the wastewater tank (16). When the sewage pump (20) is operated while continuously sucking the sewage in the shatterproof cover (9) of the wall surface cleaning device (A) in this way, the sewage sucked into the sewage tank (16) is discharged into the filter (21). ) Through a wastewater pump (20) to a cyclone (22), where wastewater and solids are separated, the wastewater flows into and is stored in a wash water tank (15), and the solids are stored in the wastewater tank ( 16) Dropped inside and stored. The wastewater thus stored in the wash water tank (15) is sucked into the high pressure pump (25) as wash water through the filter (26),
The washing water hose (24) is pressurized by the high-pressure pump (25) and sent again as high-pressure washing water to the hose reel (23).
And is sprayed from the spray nozzles (14) and (14) of the cleaning water pipe (12) of the wall surface cleaning device (A). In this state, the air cylinder built in the slide base (6) slides the scattering prevention cover (9) in the left-right direction through the slide member (8), and high pressure injected from the injection nozzles (13) (13). At the same time, the surface of the signboard (B) is continuously washed with the washing water in the left-right direction, and at the same time, the rubber blade (10) of the scattering prevention cover (9) scrapes off the dirt of the signboard (B).
Then, when the sliding of the scattering prevention cover (9) is completed, the ladder or boom of the aerial work vehicle is operated again to move the wall surface cleaning device (A) to the uncleaned portion of the signboard (B),
After that, the same operation as above is repeated to clean the entire surface of the signboard (B).

The present invention is not limited to the above-mentioned embodiment. For example, a rotating brush is rotatably attached to the inside of the scattering prevention cover (9) as required, and the rotating shaft of the rotating brush is attached to the rotating brush. It is also possible to positively rotate the fixed water turbine by using the jetting force of the washing water, or to rotate it by a motor or the like, and scrape off the dirt on the signboard (B) with this rotating brush.

Further, in the above embodiment, the stains on the surface of the signboard (B) are simply washed off with a detergent used as washing water, but after this, instead of the detergent, fresh water is used as washing water for finishing washing. You may

Further, in the above-mentioned embodiment, the signboard (B) is said to be cleaned, but the wall surface having a smooth surface other than the signboard can be cleaned.

[0021]

As described above, according to the present invention,
Since wall cleaning work can be mechanized without human intervention, not only does it take a lot of time and effort to improve work efficiency, but also dust, mud, dirt, etc. adhering to the wall can be avoided. It can be collected and removed without being scattered to the outside, which is very good for the health and hygiene of workers.
Its practical value is great.

[Brief description of drawings]

FIG. 1 is a front view of a wall surface cleaning device of the present invention.

FIG. 2 is a plan view of the wall surface cleaning device of the present invention.

FIG. 3 is a side view of the wall surface cleaning device of the present invention.

FIG. 4 is a schematic configuration diagram of a recycle type high-pressure washing vehicle.

[Explanation of symbols]

 1 advance / retreat member 2 support base 3 air cylinder 4 mounting bracket 6 slide base 8 slide member 9 scattering prevention cover 10 rubber blade 11 wash water injection pipe 12 wastewater discharge pipe 13 wash water pipe 14 injection nozzle

Claims (3)

[Claims] 1. A scattering prevention cover which is formed in a box shape having an opening on the side facing a wall surface, and which has an elastic member attached and fixed to the peripheral edge of the opening and which has an injection nozzle and a discharge port inside thereof. A wall surface cleaning device comprising: a cleaning liquid supply unit connected to a nozzle, a vacuum liquid discharge unit connected to the discharge port, and a moving unit for moving the scattering prevention cover along a wall surface. 2. The wall surface cleaning device according to claim 1, further comprising a filtering device disposed between the cleaning liquid supply means and the vacuum drainage means to recycle the cleaning liquid. 3. The wall surface cleaning device according to claim 1 or 2, wherein a rotating brush that rotates while contacting the wall surface by the water pressure of the spray nozzle is provided inside the scattering prevention cover.