JPH08105020A - Wall surface cleaning device - Google Patents

Abstract

PURPOSE: To increase stability even in a work at elevated location. CONSTITUTION: A wall surface cleaning device is provided with a vehicle body 11 capable of traveling by power. A lifting device 14 is provided on the vehicle body 11 so as to move a support member 13 in vertical direction. The support member 13 supports a cleaning device 12 rotatably through a link mechanism. Also a thrust fan 15 is installed at the top of the support member 13 so that it blows air to the side opposite to the wall cleaning side of the cleaning device 12. Then the cleaning device 12 is pressed against an interior plate by a follower device 16 at a specified pressure.

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 for cleaning a wall surface of a tunnel, a building or the like while moving.

[0002]

2. Description of the Related Art As a conventional wall surface cleaning device, for example,
Japanese Laid-Open Patent Publication No. 5-98616 and Japanese Utility Model Laid-Open No. 5-2711
There is one disclosed in Japanese Patent No. That is, the wall surface of the tunnel is cleaned by the cylindrical rotating brush while moving in the tunnel by the moving device.

[0003]

However, in the conventional wall surface cleaning device, since the wall surface is cleaned while the rotary brush is pressed against the wall surface, the repulsive force of the rotary brush causes a force to be applied to the opposite side of the wall surface, resulting in unstable traveling. There was a problem that became. The stability can be improved by widening the width of the vehicle body, but the work space for wall cleaning is often limited, especially when cleaning the wall surface of the tunnel.
Normally, it is necessary to work in a narrow inspection corridor, so that the width of the vehicle body is required to be narrow. Also,
In high-altitude work, the center of gravity becomes high, which further reduces stability. Therefore, there is a demand for a wall surface cleaning device that is highly stable even at work in high places without widening the width of the vehicle body.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a wall surface cleaning device which is highly stable even at work in high places.

[0005]

In order to achieve the above object, a wall surface cleaning device according to the present invention of claim 1 is a vehicle body that can be driven by power, a cleaning tool that can be rotated by power, and the cleaning device. A support member that rotatably supports the tool, an elevating device that is provided in the vehicle main body, and is attached to the support member so that the support member can be moved up and down by power, and a wall surface of the cleaning tool on the support member or the upper part of the elevating device A thrust fan, which is attached to the side opposite to the cleaning side so as to blow out air and is rotatable by power, is featured.

The power of the vehicle, the cleaning tool, the lifting device and the thrust fan may be common or separate. The power may be an engine, hydraulic pressure, electric power, or any other power. The vehicle may be a tracked vehicle, a four-wheeled vehicle, or any other vehicle as long as it can be moved by power.

The rotation axis of the cleaning tool may extend vertically or horizontally. The cleaning tool may be a wet cleaning tool or a dry cleaning tool. The thrust fan may be one or more. The thrust fan may have a duct and blow out air from the duct.

The wall surface cleaning device according to the present invention of claim 2 is
The wall surface cleaning device according to claim 1, further comprising a follow-up device, the follow-up device having an expansion / contraction device, a link mechanism, and a follow-up spring, the expansion / contraction device being capable of advancing and retracting with respect to a cylinder and power of the cylinder. A piston, one end on the cylinder side is rotatably attached to the elevating device, the link mechanism is rotatably attached to the elevating device and the tip of the piston, and the support member is attached to the link mechanism. The link mechanism has a structure in which the support member can be moved to the wall surface cleaning side of the cleaning tool and the opposite side thereof, and the follow-up spring is used when the expansion device retracts the piston into the cylinder. Or attached to the link mechanism so as to move the support member to the wall surface cleaning side of the cleaning tool by its urging force when protruding from the cylinder. It is possible to, characterized that.

The wall surface cleaning device according to the present invention of claim 3 is
The wall surface cleaning device according to claim 2, further comprising an obstacle sensor, the obstacle sensor being attached to the support member so as to detect an obstacle in front of a wall surface cleaning side of the cleaning tool, and the telescopic device. In response to an obstacle detection signal from the obstacle sensor, the piston is configured to protrude from the cylinder, and the link mechanism causes the support member to move the support member to the cleaning tool when the expansion device extends the piston. It is characterized by having an engaging portion for moving to the side opposite to the wall surface cleaning side.

The obstacle sensor may be a mechanical sensor, an optical sensor or an ultrasonic sensor.

The wall surface cleaning device according to the present invention of claim 4 is
The wall surface cleaning device according to claim 3, wherein the link mechanism includes a first link, a second link, a third link, a fourth link, a fifth link, and a sixth link, and the first link is One end is rotatably attached to the tip of the piston and the middle part is rotatably attached to the lifting device.
One end of the second link is rotatably attached to the elevating device at a position of the intermediate portion of the first link, the third link is fixed to the support member, and one end of the second link is the other end. Rotatably attached to the fourth link, one end of the fourth link is rotatably attached to the other end of the third link, and the other end is rotatably attached to the lifting device.
One end of the fifth link is rotatably attached to the elevating device at a position of a mounting portion of the fourth link to the elevating device, and one end of the sixth link is rotatably attached to the other end of the fifth link. The attached other end is rotatably attached to an intermediate portion between the other end of the first link and the attachment portion of the second link to the first link, and the follow-up spring has one end of the first link of the first link. The other end is attached to the third link, and the other end is attached to the third link.
When the expansion device retracts the piston into the cylinder, the extension device has a configuration in which the third link is moved to the wall surface cleaning side of the cleaning tool by a tensile force of the follow-up spring.
The engaging portion is engaged with at least one of the second link and the fourth link when at least one of the first link, the fifth link, and the sixth link causes the piston to project the piston. It is characterized in that it is provided at a matching position.

The wall surface cleaning device according to the present invention of claim 5 is
The wall surface cleaning device according to claim 1, 2, 3 or 4, further comprising a water supply device, and the water supply device includes a water supply tank,
The water supply tank has a nozzle for ejecting cleaning water by power, and a pump for collecting drainage in the water supply tank, and the support member opens the wall surface cleaning side, and at least a side portion of the cleaning tool. And a cover for covering the bottom portion, the cover has a drain port at a lower portion, the drain port is connected to the pump, and the nozzle is provided inside the cover so as to eject the cleaning water to the wall cleaning side. It is characterized by being provided.

The water supply device may be self-propelled with a vehicle or may be attached to the vehicle body.

[0015]

In the wall surface cleaning device according to the present invention, the vehicle body travels along the wall surface by power, and the cleaning tool rotates by power to clean the wall surface. The cleaning tool can be moved up and down by an elevating device to clean the wall surface from a low place to a high place. The thrust fan is rotated by power and blows air to the side opposite to the wall surface cleaning side of the cleaning tool, and pushes the supporting member or the upper part of the lifting device against the wall surface side against the repulsive force of the cleaning tool during wall surface cleaning. As a result, the repulsive force of the cleaning tool can be canceled out, and the stability can be improved even when working in high places.

In the wall surface cleaning device according to the second aspect of the present invention, the cleaning device can be pressed against the wall surface with a predetermined pressure by the follower device. That is, the link mechanism can move the support member to the wall surface cleaning side of the cleaning tool and the opposite side. When the expansion device retracts the piston into the cylinder or protrudes from the cylinder, the support member moves to the wall surface cleaning side of the cleaning tool by the biasing force of the follow-up spring via the link mechanism. Thereby, the cleaning tool attached to the support member is pressed against the wall surface with a predetermined pressure.

In the wall surface cleaning device according to the present invention of claim 3, when the obstacle sensor detects an obstacle and gives a signal,
In response to the signal, the telescopic device causes the piston to project from the cylinder. At this time, the link mechanism moves the support member to the opposite side of the cleaning tool from the wall surface cleaning side by the engagement of the engaging portion. Thereby, the cleaning tool attached to the support member is
It is possible to avoid obstacles by moving away from the wall.

In the wall surface cleaning device according to the present invention of claim 4, when the expansion device retracts the piston into the cylinder, the first link rotates about an intermediate portion attached to the lifting device, and the follow-up spring extends. The pulling force moves the third link to the wall surface cleaning side of the cleaning tool. The support member is attached to the third link, and moves the cleaning tool to the wall surface cleaning side with the movement of the third link. As a result, the cleaning tool is pressed against the wall surface with a predetermined pressure by the pulling force of the follow-up spring.

When the obstacle sensor detects an obstacle and the telescopic device causes the piston to project from the cylinder in response to the signal, an engaging member provided on at least one of the first link, the fifth link and the sixth link. The joining portion engages with at least one of the second link and the fourth link, the first link rotates in the opposite direction to when the piston is retracted, and the third link separates from the wall surface cleaning side of the cleaning tool. The support member attached to the third link separates the cleaning tool from the wall surface cleaning side with the movement of the third link. Thereby, the cleaning tool can avoid the obstacle.

In the wall surface cleaning device according to the fifth aspect of the present invention, the water supply device ejects the cleaning water in the water supply tank to the wall surface cleaning side from the nozzle inside the cover. By cleaning the wall surface with the wash water, the cleaning effect can be enhanced. The washing water after use is collected from the drain port at the bottom of the cover into the water supply tank through a pump. The collected used cleaning water is again ejected from the nozzle and used as cleaning water. This can save the wash water.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First and second embodiments of the present invention will now be described with reference to the drawings.
Examples will be described. 1 to 6 show the first embodiment of the present invention.
An example is shown. As shown in FIGS. 1 to 6, the wall surface cleaning device 10 includes a vehicle body 11, a cleaning tool 12, a support member 13, an elevating device 14, and two thrust fans 15, 1.
5, a follow-up device 16, an obstacle sensor 17, and a water supply device 18.

As shown in FIG. 1, the vehicle main body 11 is an endless track vehicle that can be run by an internal combustion engine, and it is more difficult for the vehicle body 11 to derail compared to a four-wheel vehicle. Guide wheels 21a and 21b are provided at the front and rear of the vehicle body 11 so as to face the wall surface cleaning side of the vehicle body 11. Guide wheels 21a, 21
In b, the vehicle body 11 is attached so as to be inclined with respect to the axle so that the vehicle body 11 has an approach angle on the wall surface cleaning side.

As shown in FIG. 2, an auxiliary wheel device 22 is detachably attached to the opposite side of the vehicle body 11 from the wall surface cleaning side. The auxiliary wheel device 22 arranges the auxiliary wheel 22a slightly above the roadway 2 lower than the inspection corridor 1 and arranges the auxiliary wheel 22a on the roadway 2 if the vehicle body 11 derails from the inspection corridor 1 of the tunnel. This is to prevent the fall by grounding.

As shown in FIG. 1, the lifting device 14 comprises a parallel motion link device 23 and a hydraulic cylinder device 24. The parallel motion link device 23 includes four links 23.
It is formed by connecting a, 23b, 23c and 23d. The link 23a serving as a support is vertically fixed to the upper portion of the vehicle body 11, and the tip of the piston 24a of the hydraulic cylinder device 24 is rotatably attached to the center of the link 23b. The lifting device 14 raises the link 23c by projecting the piston 24a of the hydraulic cylinder device 24, and retracts the piston 24a to retract the link 23c.
Is designed to be lowered.

The follow-up device 16 has a telescopic device 25, a link mechanism 26, and a follow-up spring 27. Telescopic device 25
Has a cylinder 25a and a piston 25b capable of moving forward and backward with respect to the cylinder 25a by hydraulic pressure. The expansion / contraction device 25 has a cylinder-side end which has a link 23 of the lifting device 14.
It is rotatably attached to c.

As shown in FIGS. 3A to 3C, the link mechanism 26 includes a first link 31, a second link 32, a third link 33, a fourth link 34, and a fifth link 35.
And a sixth link 36. As shown in FIG. 3A, one end 31 a of the first link 31 has the piston 2
5b is rotatably attached to the tip of the intermediate portion 37
Is rotatably attached to the link 23c of the lifting device 14.

The second link 32 is made of a plate, and one end 32a thereof is rotatably attached to the intermediate portion 37 of the first link 31. The third link 33 is fixed to the support member 13, and the one end 33 a is the other end 32 of the second link 32.
It is rotatably attached to b. Fourth link 34
Is a plate, one end 34a is rotatably attached to the other end 33b of the third link 33, and the other end 34b is rotatably attached to the link 23c of the elevating device 14.

The fifth link 35 has one end 35a at the other end 34b of the fourth link 34 and the link 23 of the lifting device 14.
It is rotatably attached to c. 6th link 36
The one end 36a is rotatably attached to the other end 35b of the fifth link 35 by the engagement pin 38, and the other end 36b is an intermediate portion between the other end 31b of the first link 31 and the first link 31 by the engagement pin 39. It is rotatably attached to the intermediate portion with 37. The first link 31, the fifth link 35, and the sixth link 36 are for separating the cleaning tool 12 from the wall surface cleaning side and avoiding it. As a result, the link mechanism 2
6 is capable of moving the support member 13 to the wall surface cleaning side of the cleaning tool 12 and the opposite side thereof.

The support member 13 is attached to the link 23c of the elevating device 14 via a link mechanism 26. One end 27 a of the follow-up spring 27 has the other end 3 of the first link 31.
1b and the other end 27b is attached to the third link 33. When the expansion device 25 retracts the piston 25b into the cylinder 25a, the link mechanism 26 causes the third link 33 to clean the third link 33 by the pulling force of the follow-up spring 27.
It is designed to be moved to the wall cleaning side.

As shown in FIG. 1, the cleaning tool 12 is a rotating brush rotatable by a motor 12a, and is rotatably supported by a supporting member 13. The rotation axis of the cleaning tool 12 extends in the vertical direction. The support member 13 has a cover 13a which opens the wall surface cleaning side and covers the top, side and bottom of the cleaning tool 12. The cover 13a has a drain port at the bottom. Further, the cover 13a is provided with guide rollers 41, 41 that can roll along the wall surface.

The two thrust fans 15 and 15 are attached to the upper and lower positions of the side portion of the support member 13 so as to blow out air to the side opposite to the wall surface cleaning side of the cleaning tool 12. The thrust fans 15, 15 are rotatable by power.

As shown in FIGS. 4 and 5, the support member 1
A mounting member 42 is fixed to the front surface of the unit 3. The mounting member 42 extends in the forward traveling direction of the vehicle body 11. The obstacle sensor 17 is attached to the tip of the attachment member 42. The obstacle sensor 17 is normally biased by a spring and extends perpendicularly to the mounting member 42 toward the wall surface cleaning side. However, when the obstacle sensor 17 is pushed by an object from the front with a force larger than the biasing force of the spring, the obstacle sensor 17 side. I'm supposed to collapse. The obstacle sensor 17 is provided with a limit switch, and transmits an obstacle detection signal when the obstacle sensor 17 falls to the support member 13 side. The expansion / contraction device 25 causes the piston 25b to project from the cylinder 25a in response to an obstacle detection signal from the obstacle sensor 17.

As shown in FIG. 3C, the link mechanism 26
The engaging pins 38 and 39 of the above extend vertically through the first link 31 and the fifth link 35. As shown in FIG. 3 (B), the engagement pins 38 and 39 are respectively provided with the second link 3 when the expansion device 25 projects the piston 25b.
The second and fourth links 34 are engaged with each other to rotate them, and the support member 13 is moved to the opposite side of the cleaning tool 12.

As shown in FIGS. 6A and 6B, the water supply device 18 includes a vehicle body 51, a water supply tank 52, a nozzle 53 (see FIG. 1), a sprinkling pump 54, and a recovery pump 5.
5 and 5. The vehicle body 51 is a tracked vehicle that can run by an internal combustion engine, and can be connected to the vehicle body 11. The nozzle 53 is provided inside the cover 13a so as to eject the cleaning water toward the wall surface cleaning side, and ejects the cleaning water from the water supply tank 52 by the water spray pump 54. The collection pump 55 collects waste water in the water supply tank 52. The drainage port of the cover 13a is connected to the recovery pump 55.

Next, the operation will be described. As shown in FIG. 2, the wall surface cleaning device 10 travels in the inspection corridor 1 in the tunnel and cleans the interior plate 3 on the wall surface of the tunnel. The wall surface cleaning device 10 runs along the interior plate 3 by a vehicle body 11 driven by an internal combustion engine. The wall surface cleaning device 10 can travel without requiring a suspension device such as a rail. The vehicle body 11 can be guided along the interior plate 3 by the guide wheels 21a and 21b to prevent the wheel from derailing due to meandering or the like. Further, the vehicle body 11 includes guide wheels 21a, 2
By 1b, the relative position with respect to the interior plate 3 can be kept constant and the automatic follow-up of the cleaning tool 12 is facilitated. Auxiliary wheel device 2
2 moves on the road 2 in a slightly floating state, and prevents the wall surface cleaning device 10 from tipping over if the vehicle body 11 derails.

The cleaning tool 12 is rotated by the motor 12a to clean the interior plate 3. The cleaning tool 12 moves up and down through the parallel motion link device 23 due to expansion and contraction of the hydraulic cylinder device 24, and can clean the interior plate 3 from a low position to a high position. The thrust fan 15 is rotated by power to rotate the cleaning tool 1.
Air is blown to the side opposite to the wall surface cleaning side of 2, and the support member 13 is pushed to the wall surface side against the repulsive force of the cleaning tool 12 at the time of wall surface cleaning. This cancels the repulsive force of the cleaning tool 12,
Stability can be enhanced even in high-altitude work where the center of gravity is high.

In the wall surface cleaning device 10, the water supply device 18 covers the cleaning water in the water supply tank 52 during the wall surface cleaning.
Is ejected from the nozzle 53 on the inside to the wall-cleaning side. By cleaning the interior plate 3 with cleaning water, the cleaning effect can be enhanced. Wash water after use is covered with a cover 13a.
The water is collected in the water supply tank 52 from the drainage port at the bottom of the tank via the recovery pump 55. The collected used cleaning water is again ejected from the nozzle 53 and used as cleaning water. As a result, the cleaning water can be saved and the number of times of supplying the cleaning water can be reduced.

As shown in FIG. 3A, when cleaning the wall surface,
In the wall surface cleaning device 10, the follow-up device 16 can press the cleaning tool 12 against the interior plate 3 at a predetermined pressure to follow the interior plate 3. That is, the link mechanism 26 can move the support member 13 between the wall surface cleaning side of the cleaning tool 12 and the opposite side. The telescopic device 25 moves the piston 25b into the cylinder 2
When retracted to 5a, the first link 31 rotates about the intermediate portion 37 attached to the link 14c of the lifting device 14, the follow-up spring 27 extends, and the pulling force causes the third link to move to the third position.
The link 33 moves to the wall surface cleaning side of the cleaning tool 12.

The support member 13 is attached to the third link 33, and from the position shown by the solid line in FIG. 3 (A) to the position shown by the chain double-dashed line, the cleaning tool 12 moves with the movement of the third link 33. To the wall cleaning side. Since the cleaning tool 12 is pressed against the wall surface with a predetermined pressure by the pulling force of the follow-up spring 27, uneven cleaning and load fluctuation of the rotational force of the cleaning tool 12 do not occur, and the interior plate 3 can be effectively cleaned. it can.
Further, in the wall surface cleaning device 10, since the thrust fan 15 blows air to constantly push the cleaning tool 12 toward the wall surface, the effect of causing the cleaning tool 12 to follow the interior plate 3 can be further enhanced.

In the wall surface cleaning device 10, the obstacle sensor 17
When it hits an obstacle protruding from the interior plate 3, it is pushed and falls backward, and an obstacle detection signal is emitted by the limit switch. As shown in FIG. 3B, the expansion / contraction device 25 causes the piston 25b to project from the cylinder 25a in response to the signal. At this time, the link mechanism 26 uses the first link 31.
Rotates reversely when the piston 25b is retracted, and the engaging pins 38 and 39 respectively engage the second link 32 and the fourth link 34 to rotate them. As a result, the third link 33 and the support member 13 fixed thereto are
The cleaning tool 12 is separated from the wall surface cleaning side. Thus, the cleaning tool 12 attached to the support member 13 is separated from the wall surface,
Obstacles can be avoided, and damage to obstacles such as signs due to collision, cleaning, and polishing can be prevented.

Next, a second embodiment of the present invention will be described. 7 and 8 show a second embodiment of the present invention. As shown in FIG. 7, the wall surface cleaning device 10A includes a vehicle body 11A, a cleaning tool 12A, a support member 13A, a lifting device 14A, a thrust fan 15A, and a follow-up device 1.
It has 6A and an obstacle sensor 17A. Cleaning tool 1
2A, the support member 13A, the thrust fan 15A, the follow-up device 16A, and the obstacle sensor 17A are the same as those in the first embodiment, and duplicated description will be omitted.

The vehicle body 11A comprises a four-wheeled vehicle. The elevating device 14A is composed of a hydraulic cylinder device that can expand and contract, and the support member 13A is attached to the side part of the elevating device 14A via the link mechanism of the follower device 16A. The thrust fan 15A is fixed to the upper side position of the side portion of the support member 13A. The obstacle sensor 17A is
It is attached to a mounting member 42A extending from the front surface of the support member 13.

Next, the operation will be described. The wall surface cleaning device 10A is driven by a four-wheel vehicle body 11A. As shown by the chain double-dashed line in FIG. 7, the wall surface cleaning device 10A can vertically move the cleaning tool 12A vertically with respect to the vehicle body 11A by the lifting device 14A to clean the interior plate of the tunnel. The thrust fan 15A is rotated by power and blows air to the side opposite to the wall surface cleaning side of the cleaning tool 12A to resist the repulsive force of the cleaning tool 12A at the time of cleaning the wall surface, and the supporting member 13A.
Push to the wall side. As a result, similarly to the wall surface cleaning device 10 of the first embodiment, the repulsive force of the cleaning tool 12A can be canceled out, and stability can be improved even in work at a high place where the center of gravity is high. It is possible to enhance the effect of following.

In the first embodiment described above, when the thrust fan is two, the thrust fan is one in the second embodiment.
Although the case of one thrust fan is illustrated, the number of thrust fans is not limited to this, and may be one or two or more. Further, the mounting position of the thrust fan is not limited to the support member, and may be the upper part of the lifting device.

Further, in the above-mentioned first and second embodiments, the example in which the cleaning tool follows the wall surface by the thrust fan and the follower device is shown, but only the thrust fan is provided without the follower device. The cleaning tool may follow the wall surface.

Further, in the first embodiment, the expansion / contraction device of the follow-up device may be one which can adjust the advancing / retreating length of the piston. In this case, when the piston is projected from the cylinder by a predetermined length, the first link rotates in the opposite direction to the case where the piston is retracted, the follow-up spring contracts, and the tensile force thereof weakens. In this way, the pressure with which the cleaning tool is pressed against the wall surface can be adjusted, and the interior plate can be cleaned more effectively.

[0047]

According to the wall surface cleaning device of the present invention, since the thrust fan is attached to the upper part of the supporting member or the elevating device, the repulsive force of the cleaning tool against the wall surface is canceled and the center of gravity becomes high. The stability can be enhanced even during work, and the cleaning tool can easily follow the wall surface.

In particular, the wall surface cleaning device according to the second aspect of the present invention has the follow-up device using the expansion device, the link mechanism and the follow-up spring. Therefore, the cleaning tool is pressed against the wall surface with a predetermined pressure to clean the wall surface. Can be effectively cleaned.

In particular, the wall surface cleaning device according to the third aspect of the present invention has an obstacle sensor, a telescopic device, and a link mechanism having an engaging portion, and the obstacle detected by the obstacle sensor is used as a cleaning tool. Since it can be avoided, it is possible to prevent the obstacle from being damaged by the collision.

Particularly, in the wall surface cleaning device according to the fourth aspect of the present invention, the link mechanism includes the first to sixth links, and the follower device and the obstacle avoidance mechanism can be easily embodied.

Particularly, in the wall surface cleaning device according to the present invention of claim 5, the cleaning water in the water supply tank can be jetted from the nozzle inside the cover to the wall surface cleaning side by the water supply device, so that the wall surface cleaning effect is obtained. In addition, since the cleaning water after use can be collected in the water supply tank and reused, the cleaning water can be saved and the number of times of supplying the cleaning water can be reduced.

[Brief description of drawings]

FIG. 1 is a side view showing a wall surface cleaning device according to a first embodiment of the present invention.

FIG. 2 is a front view showing the wall surface cleaning device according to the first embodiment of the present invention.

FIG. 3 is a plan explanatory view showing (A) a follow-up operation of the link mechanism of the wall surface cleaning device of the first exemplary embodiment of the present invention, (B) a plan explanatory view showing an obstacle avoiding operation, and (C) a side view. .

FIG. 4 is a plan view of the vicinity of the cleaning tool of the wall surface cleaning device according to the first exemplary embodiment of the present invention.

FIG. 5 is a side view of the vicinity of the cleaning tool of the wall surface cleaning device according to the first embodiment of the present invention.

FIG. 6 is a side view (A) and a front view (B) of the water supply device according to the first embodiment of the present invention.

FIG. 7 is a side view showing a wall surface cleaning device according to a second embodiment of the present invention.

FIG. 8 is a front view showing a wall surface cleaning device according to a second embodiment of the present invention.

[Explanation of symbols]

 10 Wall Cleaning Device 11 Vehicle Main Body 12 Cleaning Tool 13 Supporting Member 14 Lifting Device 15 Thrust Fan 16 Tracking Device 17 Obstacle Sensor 18 Water Supply Device

Claims (5)

[Claims] 1. A vehicle main body that can be driven by power, a cleaning tool that can be rotated by power, a support member that rotatably supports the cleaning tool, and a support member that is provided on the vehicle main body and that vertically moves the support member by power. A lift device movably attached to the support member or an upper part of the lift device, and a thrust fan that is attached to the side opposite to the wall surface cleaning side of the cleaning tool so as to blow out air and is rotatable by power. Wall cleaning device characterized by. 2. A follow-up device further comprising an expansion / contraction device, a link mechanism, and a follow-up spring, wherein the expansion / contraction device has a cylinder and a piston capable of moving forward and backward with respect to the cylinder. The one end on the cylinder side is rotatably attached to the elevating device, the link mechanism is rotatably attached to the elevating device and the tip of the piston, and the support member is attached to the link mechanism. The mechanism has a structure in which the support member can be moved to the wall surface cleaning side of the cleaning tool and the opposite side thereof, and the follow-up spring is used when the expansion device retracts the piston into the cylinder or from the cylinder. When projecting,
The wall surface cleaning device according to claim 1, wherein the link member is attached to move the support member to the wall surface cleaning side of the cleaning tool by the urging force. 3. An obstacle sensor is further provided, the obstacle sensor is attached to the support member so as to detect an obstacle in front of a wall surface cleaning side of the cleaning tool, and the expansion device is the obstacle sensor. According to the obstacle detection signal, the piston protrudes from the cylinder, and the link mechanism causes the support member to move the support member to the wall surface cleaning side of the cleaning tool when the expansion device expands the piston. The wall surface cleaning device according to claim 2, further comprising: an engaging portion for moving to a side opposite to the above. 4. The link mechanism comprises a first link, a second link, a third link, a fourth link, a fifth link and a sixth link, one end of the first link being the piston. Rotatably attached to the tip of the elevator, the intermediate portion is rotatably attached to the lifting device, one end of the second link is rotatably attached to the lifting device at the position of the intermediate portion of the first link, The third link is fixed to the support member, one end of which is rotatably attached to the other end of the second link, and the fourth link has one end of the third link.
The other end of the link is rotatably attached and the other end is rotatably attached to the lifting device, and one end of the fifth link rotates to the lifting device at a position of a mounting portion of the fourth link to the lifting device. The sixth link is rotatably attached, one end of which is rotatably attached to the other end of the fifth link and the other end of which is the other end of the first link and an attachment portion of the second link to the first link. Is rotatably attached to the intermediate portion of the follower spring, one end of the follower spring is attached to the other end of the first link, and the other end is attached to the third link. When the piston is retracted into the cylinder, the pulling force of the follow-up spring moves the third link to the wall surface cleaning side of the cleaning tool, and the engaging portion has the first link, The above At least one of a link and a sixth link, the expansion device being provided at a position to engage with at least one of the second link and the fourth link when the piston is projected. The wall surface cleaning device according to claim 3. 5. A water supply device further comprising a water supply tank, a nozzle for ejecting wash water from the water supply tank by power, and a pump for collecting waste water in the water supply tank. The support member has a cover that opens the wall surface cleaning side and covers at least a side portion and a bottom portion of the cleaning tool, the cover has a drain port at a lower portion, and the drain port is connected to the pump. The wall surface cleaning device according to claim 1, 2, 3, or 4, wherein the nozzle is provided inside the cover so as to eject the cleaning water toward the wall surface cleaning side.