JPS61187696A - Cleaner for wall surface - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

purpose of invention

[Industrial application field]

The present invention relates to a device for cleaning a wall surface by remote control.

[Conventional technology]

Cleaning work in areas that are at risk of being harmed by radiation or toxic substances, such as nuclear power plants, is preferably carried out using equipment that can be remotely controlled from a safe location. As a conventional cleaning device of this type for cleaning floors, there is a "floor cleaning system and device" previously proposed by the applicant. There are devices for cleaning walls that are built-in for specific objects to be cleaned, but of course these types of devices are not versatile. Therefore, at present, the walls of nuclear power plant buildings and tanks are cleaned manually. [Problems to be Solved by the Invention] An object of the present invention is to provide a remotely controllable wall surface cleaning device that has the versatility to clean any wall surface, whether it is a building or a tank. Composition of the invention

[Means to solve the problem]

The wall cleaning device of the present invention includes a telescopically vertically extendable pole attached to a remotely controlled self-propelled trolley;
It basically consists of a horizontally extendable arm that moves up and down along this pole using a moving means attached to one end, and a cleaning means attached to the other end of this arm, all of which can be operated remotely. It is characterized by being performed by maneuvering. [Function] As shown in FIG. 1, the self-propelled cart 7 of the wall cleaning device 1 has the following functions:
Stop at an appropriate position from the wall with the direction of movement parallel to the wall surface, and extend the pole 6 to an appropriate length. At this time, if you place the tip of the pole against the ceiling and push it up so that it is firmly fixed between it and the floor, the pole will be stable during the cleaning process. As seen in FIGS. 1 and 2, means 8 for raising and lowering the guide 5 of the arm 3 supporting the cleaning means 4
consists of a motor 81, a reel 82, a pulley 83, and a hanging wire 84, and the motor 81 and reel 82 wind and unwind the wire 84 on which the guide 5 is hung, and the cleaning means 4 is moved from the top of the pole to the top. Move to the desired position between the bottom. As shown in FIG. 5, the guide 5 has a moving means composed of a short cylindrical guide frame 51, a combination of a plurality of springs 52 provided inside the guide frame 51, and a rubber roller 53, and presses the rubber roller 53 against the pole. By expanding and contracting the spring 52, it is possible to move along a pole having a non-uniform thickness. The arm 4 is extended to bring the hood 41 into contact with the wall, and as shown in FIG. 3, water-containing air is jetted toward the wall from a nozzle 43 contained in the hood and sucked by a vacuum hose 44. do. The rotating brush 42 scrubs the wall surface and cleans the wall together with the sprayed water-containing air. Inside the hood,
As shown in FIG. 3, the injected air containing water and the air flowing in from the gap between the hood and the wall are sucked by the vacuum hose, forming a flow as shown by the arrow. Moisture containing dirt is sucked along with this flow and transported to a rear contaminant separation device (not shown). In this way, cleaning and suction of dirty water takes place inside the hood, so that no contaminated water is splashed out of the hood. By moving the cleaning means upward or downward while performing such cleaning, it is possible to clean (hang) the wall surface within the movable range of the cleaning means. By repeating the operation, the entire wall surface can be cleaned. [Embodiment] The hood rotatably houses a rotating brush, and has a shape and size that maintains a steady flow as shown by the arrow in Figure 3. The gap between the end of the hood and the wall, especially at the bottom of the hood, should be
Air must flow in at a certain speed to prevent dirty water and air from scattering outside. To do this, the hood must always be kept at an appropriate distance from the wall. This is a leg 45 of an appropriate height on the end face of the hood.
This can be achieved by means such as providing a If a small wheel is used instead of the legs, the arm can move up and down smoothly,
Preferable as it does not cause scratches on the wall. As a means for imparting rotation to the rotating brush, it is recommended to attach a rotor to the rotating brush and to blow cleaning water or air, preferably air containing water, onto the rotating brush. Of course, a small motor can also be used. It is advisable to use multiple rotating brushes as needed. For example, if two rotating brushes are arranged as shown in Figure 4 and rotated in opposite directions, they will be symmetrical with respect to the center line of the hood and a natural flow will occur, resulting in a high degree of cleaning. Cleaning can be done quickly. It goes without saying that cleaning efficiency increases when the rotating brush is as long as possible. The mounting direction of the rotating brush, that is, whether the hood is vertically or horizontally long, can be selected depending on the shape of the wall surface.
For example, when cleaning something with a wall that is not flat, such as a tank, it may be more advantageous to install it vertically. This problem is solved by making the entire arm or hood rotatable through 90° about the center of the arm. In addition to the above-described winding and feeding of the wire, the cleaning means can be moved up and down by fixing an arm to the top of the pole and extending and contracting the pole. To extend the pole, a rack-binion means driven by a motor lets out a spring, and this spring pushes it up from the innermost tube of the multiple tubes in a ten-scope manner.
This is done by sequentially applying this to the outer cylinder, and when shrinking it is best to reverse this process. The same applies to the arm. Of course, it is also possible to use hydraulic pressure or other means. If the cleaning means is equipped with a remotely controllable monitor television camera 9 as shown in FIGS. 1 and 2,
It is convenient for monitoring cleaning work and operating self-propelled trolleys. Effects of the Invention The wall surface cleaning device of the present invention has a floor on which a self-propelled cart can run;
It can be used in any room or tank with nearly vertical walls and provides satisfactory cleaning without risk of exposure to radiation or harm from toxic substances.

[Brief explanation of drawings]

1 and 2 show the wall cleaning device of the present invention in use, with FIG. 1 being a front view and FIG. 2 being a side view. 3 and 4 are conceptual diagrams for explaining various aspects of the cleaning means, and FIG. 3 shows a case in which there is one rotating brush, and FIGS. The cases where the books are rotated in opposite directions are shown. FIG. 5 shows the structure of the guide, and is a conceptual diagram showing the state of the guide at different thicknesses of the pole. 1... Wall cleaning device 3... Arm 4... Cleaning means 41... Hood 42... Rotating brush 43... Spray nozzle 44... Vacuum hose 5... Guide 51... Guide frame 52...Spring 53...Rubber roller 6...Pole 7...Self-propelled trolley 8...Lifting means 9...Monitor TV camera patent applicant JGC Corporation
Seidensha Co., Ltd. Agent Patent Attorney
Suga So Otsutsu 1 Figure 2111 311 Figure 4

Claims (7)

[Claims] (1) A telescopically telescopic vertically extendable pole attached to a remotely controlled self-propelled trolley, and a horizontally extendable arm that moves up and down along this pole using a moving means provided at one end. and a cleaning means attached to the other end of the arm, and all operations thereof are performed by remote control. (2) Claim 1, wherein the cleaning means comprises a rotating brush, a means for blowing out water, a means for sucking the cleaned water, and a hood that encloses them with a part of the rotating brush exposed. The wall cleaning device described in . (3) The wall surface cleaning device according to claim 2, which applies rotational driving force to the rotating brush by spraying water or air onto the rotor of the rotating brush. (4) Motor-driven rack for extending and retracting the pole and arm
The wall surface cleaning device according to claim 1, wherein the wall surface cleaning device performs telescopic cleaning using a spring that is drawn out and pulled in by a pinion. (5) The arm with the cleaning means attached is suspended by a wire via a pulley fixed to the top of the pole, and the arm is raised and lowered by winding and unwinding the wire with a motor and reel on the self-propelled cart. The wall surface cleaning device according to claim 1, which is moved to. (6) The moving means consists of a short cylindrical guide frame and a combination of multiple sets of springs and rubber rollers provided inside the guide frame, and the rubber roller is pressed against the pole by the spring, resulting in a pole with an uneven thickness. The wall surface cleaning device according to claim 1, which is movable along. (7) The wall surface cleaning device according to claim 1, comprising a television camera for monitoring.