JPH0641998B2 - Structure of the wiping part in the floor cleaning and decontamination machine of a nuclear facility - Google Patents

Description

The present invention relates to the structure of a wiping unit in a floor cleaning / wiping decontamination machine in a nuclear facility.

(Prior Art) In a nuclear power plant or the like, in order to perform a sound and stable operation of the power plant or the like, regular inspection of equipment is carried out. At this time, the floor surface may be contaminated. Decontamination of such contaminated floor surfaces has conventionally relied on manual work.

(Problems to be solved by the invention) In view of the above prior art, it is possible to provide a novel structure of a cleaning water wiping unit in a cleaning / wiping decontamination machine that enables labor saving and mechanization of work. It is what

(Solution by the Invention) In the lower part of the machine frame 1, a water supply nozzle 10 provided at the forefront part, a cleaning roll brush 2 provided at the rear of the water supply nozzle, a water absorption part 3 by vacuum suction at the rear part thereof, and further thereafter. In the floor cleaning / wiping decontamination machine which is equipped with the wiping unit 4 of the above-mentioned unit and can be driven by the drive wheel, the wiping unit 4 includes a plurality of curved portions 26a for accommodating the plurality of free rollers 24. Room 2
A roller box 26 having 6b and mounted on the machine body via a spring 31 is provided, and a free roller 24 pressed by the spring 25 against the curved surface portion 26a is provided in each chamber 26b of the roller box 26.
The wiping paper 27 is fed from the paper feed roll 29, and is provided on the upper part of the machine frame 1 by being guided through the guide rollers 28 before and after the roller box 26 and the plurality of free rollers 24 between these guide rollers 28, 28. The roll 30 was wound up.

(Embodiment) Reference numeral A in FIG. 1 is a cleaning / wiping decontamination machine (hereinafter simply referred to as decontamination machine) in a nuclear facility equipped with a water absorbing device according to the present invention. The decontamination machine will be briefly described below, and then the detailed configuration of the wiping unit will be described.

As shown in the figure, the decontamination machine uses a cleaning roll brush 2 at the bottom of a rectangular machine frame 1, a water absorption section 3 for absorbing water on the floor surface after cleaning, and a water absorption section 3. The wiping part 4 for further wiping off the rest, and the drive wheels 5 and 6 for traveling.
In addition, the vehicle is provided with a traveling section including the handle 7.

The cleaning roll brush 2 is a water tank 8 mounted on the machine frame 1.
From a water supply hose 9 for supplying water from a water supply nozzle 10
Is provided at the front of the brush 2, and the belt 1 is driven by the motor 11.
Driven through 2.

Next, as shown in FIGS. 3 to 7, the water absorbing portion 3 has two sponges 14, a porous rubber 15, and a squeegee rubber 16 attached to the lower portion of the frame 13 with bolts and nuts 17. A short roller 18 is rotatably fitted to the lower surface of the frame body 13.

A water absorption duct 20 is attached to the upper part of the frame body 13 at the center through a hood 19, and the water absorption duct is connected to a suction device (not shown) provided on the machine frame 1. The frame 13 is elastically supported by the machine frame via brackets 21 on both sides of the hood 19. That is, the frame 13 is elastically mounted in the vertical direction by the pair of rods 22 and the coil springs 23.

6 to 7 show a state during water absorption work, and the sponge 1
No. 4 is pressed by the weight of the machine body, and is in a state of having the same thickness as the diameter of the short roller 18. Further, as shown in FIG. 7, the porous rubber 15 does not absorb water, but is compressed by the weight of the machine body, enters the concave portion of the floor surface F, and works to push out the water in this portion in cooperation with the squeegee rubber 16. Of course, on a flat floor, scrape off the water with the bottom surface of the squeegee rubber 16.
After this is sucked into the sponge 14, water is absorbed.

Next, the wiping unit 4 according to the present invention will be described. Wiping part 4
Is provided with a roller box 26 having a plurality of chambers 26b having a curved surface portion 26a at the lower portion for accommodating the free rollers 24. The free roller 24 is housed in the roller box via an upper spring 25 in each chamber. 27 is a wipe paper (or cloth) fed from an upper paper feed roll 29, guided by guide rollers 28 in front of and behind the roller box 26, and taken up by a take-up roll 30 provided on the upper part of the machine body 1. The roller box 26 is different from the machine frame 1 in that the water absorbing portion frame 1
Similar to 3, the spring 31 is elastically mounted. The wiping paper 27 can also be driven in the opposite direction.

The wiping paper 27 is fed out from the paper feed roll 29 and wound around the guide roller 28 → the free roller 24 ... → The outer peripheral surface of the guide roller 28 to the take-up roll 30. The paper can be used effectively. Further, the upper portion of each free roller 24 is housed in a roller box 26 via a spring 25, and the wiper paper 27 is constantly wiped.
Since it is pressed downward against the floor by its own weight, even if the floor is uneven, the roller 24 moves up and down and the wiping paper 27
Is designed to easily follow uneven surfaces for wiping.

The drive wheel 5 for traveling is located inside the lateral width of the water absorption part 3 so as not to roll in the non-decontamination part.

(Operation) The drive wheels 5 and 6 are driven, and the handle 7 is used to move the required decontamination section. At the same time, the cleaning brush 2
First, water is supplied by the water supply nozzle 10. Then, the floor surface is first cleaned by the cleaning brush 2.

The contaminated water is vacuumed by the water absorbing section 3 of the present invention. Water absorption part 3
The sponge 14 and the porous rubber 15 are pressed by the weight of the machine body, but are not pressed by the rollers 18 and 18 any more.
It sucks up the contaminated water that has been scraped up by. At this time, if the floor surface is uneven, the porous rubber 15 enters this portion, and instead of the squeegee rubber 16, the contaminated water in the concave portion is attracted.

Thus, although the contaminated water is absorbed to a considerable extent by the water absorbing part 3, the floor surface is completely wiped off by the wiping paper 27 in the next wiping part 4 and dried. At this time, the free roll easily fits into the unevenness of the floor surface and can completely wipe the floor surface.

(Effect) The cleaning unit, the water absorption unit for contaminated water, and the floor wiping unit were compactly mounted on a single machine frame, and allowed to move freely by power, so extremely efficient and safe removal is possible. It enables dyeing work.

In particular, the wiping unit of the present invention includes a plurality of free rolls that are housed in a roller box and that can move up and down, and a wiping paper that can be wound around guide rolls before and after the free rolls. Even if there is some unevenness on the surface, it can be easily followed and evenly wiped off, and the decontamination effect is perfect.

[Brief description of drawings]

FIG. 1 is a perspective view of a wiping type floor decontamination machine. FIG. 2 is a perspective view of the water absorbing portion. FIG. 3 is a plan view of the water absorbing portion. Fig. 4 is a bottom view of the same. FIG. 5 is a sectional view of the same. FIG. 6 is a cross-sectional view showing the state of the water absorbing portion during water absorption. FIG. 7 is a cross-sectional view showing the relationship between the porous rubber and the unevenness of the floor surface. FIG. 8 is a sectional view of an essential part of the wiping part. FIG. 9 is a bottom view of the roll box. FIG. 10 is a view on arrow X in FIG. 9. In the figure; 1 ... Machine frame 2 ... Washing roll brush 3 ... Water absorbing part, 4 ... Wiping part 5, 6 ... (for running) drive wheel, 7 ... Handle, 8 ... Water tank, 9 …… (Water supply) hose 10 …… Water supply nozzle, 11 …… Motor 12 …… Belt, 13 …… Frame body 14 …… Sponge, 15 …… Porous rubber 16 …… Squeegee rubber, 17 …… Bolt nut 18 ...... (Short) rollers, 19 ...... hood 20 …… water absorption duct, 21 …… bracket 22 …… rod, 23 …… spring 24 …… free roller, 25 …… spring 26 …… roller box, 27 …… Wiping paper 28 …… Guide roller, 29 …… Feeding roll 30 …… Winding roll

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuo Hara 5-5-12 Ginza, Chuo-ku, Tokyo Stock company nuclear agency (72) Inventor Hiroaki Takagi 5561 Sakura, Hamaoka-cho, Ogasa-gun, Shizuoka Stock company Atomic Power Agency Hamaoka Plant (56) Reference JP 60-63499 (JP, A) Actual development 58-63599 (JP, U) Actual 61-79300 (JP, U)

Claims (1)

[Claims] 1. A water supply nozzle (10) provided at the forefront part, a cleaning roll brush (2) provided behind the water supply nozzle, and a water absorption part by vacuum suction at the rear part of the machine frame (1). (3) and a wiping unit (4) at the rear of the floor cleaning and wiping decontamination machine capable of being driven by drive wheels.
(4) is a curved surface for accommodating a plurality of free rollers (24)
(26a) has a plurality of chambers (26b) with a spring (31) to the machine body
A roller box (26) mounted via the roller box (26), and a free roller (24) pressed against the curved surface portion (26a) by the spring (25) in each chamber of the roller box (26) and elastically supported. Cage,
Take out the wipe paper (27) from the paper feed roll (29), and guide rollers (28) before and after the roller box (26) and these guide rollers (28).
Floor of a nuclear facility characterized by being guided by a plurality of free rollers (24) between (28, 28) and wound on a winding roll (30) provided on the upper part of the machine casing (1). The structure of the wiping part in the washing and decontaminating machine.