JP2011110434A - Surface suction cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance a running function in "a surface suction cleaning device" equipped with a rotary negative pressure seal member. <P>SOLUTION: The surface suction cleaning device is equipped with the device body connected to a negative pressure forming means for sucking a fluid, the rotary body mounted on the device body in a freely rotatable manner, a rotary drive source for rotationally driving the rotary body, the negative pressure seal member mounted on the rotary body, and a moving means for moving the device body along the surface of matter. In a case that the surface suction cleaning device is revolved on the spot using the moving means, the negative pressure seal member is rotationally driven in the direction opposite to a direction desired to revolve the surface suction cleaning device. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to an apparatus that adsorbs to and moves along an object surface by generating a negative pressure therein.
For example, steel structures such as hulls, oil storage tanks, bridges, piping, etc., concrete structures such as buildings, water tanks, roads, etc., or dirt adhered to the surface of various objects such as floor surfaces made of resin, wood, fiber, The present invention relates to a surface suction cleaning device that performs such an object surface cleaning operation, such as removing foreign matter such as rust, deteriorated coating, or aquatic organisms, and collecting by suction.

As this kind of known technology, the inventor of the present invention proposed in “Japanese Patent No. 2689127,“ Apparatus that can be adsorbed on a wall surface and moved along the wall ”and Japanese Patent No. 2805614 The “device that adsorbs to a wall surface and can move along it” is known.
Such a device is
A device main body, a wheel as a moving means mounted on the device main body, and a negative pressure sealing member connected to the device main body and having its free end in contact with the object surface, and rotating perpendicular to the object surface A negative pressure sealing member that rotates about an axis, a negative pressure generating means for discharging fluid inside the pressure reducing region defined by the apparatus main body, the object surface and the negative pressure sealing member to the outside; If the negative pressure inside the region increases to a value greater than or equal to an arbitrary pressure, a vacuum breaker valve is generally used to cause the surrounding fluid to flow into the reduced pressure region and maintain the negative pressure at the arbitrary value. Is equipped with a relief valve for maintaining a constant vacuum pressure called a vacuum breaker.
The relief valve does not necessarily have to be directly attached to the apparatus main body. In the suction hose connecting the apparatus main body and the negative pressure generating means, a portion of the suction hose adjacent to the apparatus main body. It may be attached to.
In such a device, when the negative pressure generating means is energized, the fluid inside the decompression region is discharged to the outside, and the fluid pressure acting on the device body due to the fluid pressure difference inside and outside the decompression region is transmitted via the wheels. It is transmitted to the object surface and the device is adsorbed on the object surface by such fluid pressure. Further, when the wheels are driven to rotate by driving means such as an electric motor in such an adsorption state, the device moves along the object surface by the action of the wheels.
Further, when the negative pressure sealing member mounted with a polishing member such as a polishing cloth is rotated, the object surface can be polished and cleaned, and the dust generated during the polishing and cleaning operation is the negative pressure generating means. All are sucked and collected by the action of.
In this apparatus, the pressure adjustment space provided in the negative pressure seal member and the apparatus main body are mounted so that the contact pressure between the object surface and the negative pressure seal member is adjusted to a relatively small pressure. And a pressure adjusting means for the pressure adjusting space, comprising a pressure adjusting valve, and a swivel joint mechanism for communicating the pressure adjusting space and the pressure adjusting valve.
In such an apparatus, various cleaning operations on the object surface can be performed safely and efficiently by remote control without generating dust.
Japanese Patent No. 2689127 Japanese Patent No. 2805614

In the above-described “apparatus capable of adsorbing to a wall surface and moving along the wall” disclosed in Japanese Patent No. 2689127 and Japanese Patent No. 2805614, there are the following problems to be solved.
That is, in the “apparatus that can be adsorbed to the wall surface and moved along the wall”, the pressure adjusting means provided in the apparatus main body and the rotating pressure adjusting space are swiveled as described in Japanese Patent No. 2805614. If measures are taken to communicate with each other via the joint mechanism, the mechanism for realizing the measures becomes very complicated, increasing the cause of failure and increasing the manufacturing cost.
In this “apparatus that can be adsorbed to the wall surface and moved along the wall surface”, the pressure in the pressure adjustment space is adjusted so that the contact pressure between the object surface and the negative pressure seal member is adjusted to a relatively small pressure. However, if the pressure adjusting means is not provided, and the contact pressure between the object surface and the negative pressure sealing member increases, the negative pressure sealing member will rotate the apparatus main body. Therefore, there arises a problem that the turning function is obstructed when the device moves along the object surface.
Therefore, the problem to be solved by the first invention is to provide a means for communicating the pressure adjusting means and the pressure adjusting space without using a swivel joint mechanism in the “apparatus that is attracted to the wall surface and movable along the wall”. Is to provide.
Further, the problem to be solved by the second invention is that, in the “apparatus that can be adsorbed to the wall surface and moved along the wall surface”, the turning function when the apparatus moves along the object surface is not obstructed. It is to provide means for controlling the rotation direction of the pressure seal member.

In order to achieve the above object, according to the first invention,
An apparatus body coupled to negative pressure generating means for aspirating fluid;
A rotating body that is rotatably mounted on the apparatus body and whose rotation axis intersects the object surface;
A rotational drive source for rotationally driving the rotating body;
In the negative pressure seal member having two openings and having an overall shape in an annular shape,
One opening is formed with a fixed part to be attached to the rotating body, and the other opening is formed with a contact part that first contacts the object surface and an extension part that extends further outward from the contact part. In addition, a connecting portion that connects the two openings is formed between the one opening and the other opening, and thus cooperates with the apparatus main body, the rotating body, and the object surface. A negative pressure seal member acting to define a first reduced pressure region;
In the auxiliary seal member that has two openings and the overall shape is annular,
One opening is fixed to the rotating body, the other opening is in close contact with the extension of the negative pressure seal member, and between the one opening and the other opening. A connecting portion that connects both openings, and thus an auxiliary seal member that defines a second reduced pressure region in cooperation with the rotating body and the negative pressure seal member;
The pressure in the second reduced pressure region is maintained at a pressure lower than the pressure of the fluid surrounding the object surface, and the pressure in the second reduced pressure region is higher than the pressure in the first reduced pressure region. Pressure regulating means to maintain the pressure;
A surface suction cleaning apparatus comprising: a moving means for maintaining a distance between the apparatus main body and the object surface at an arbitrary distance and moving the apparatus main body along the object surface;
There is provided a surface suction cleaning device characterized in that a pressure adjusting valve is provided in the rotating body as the pressure adjusting means.

In order to achieve the above object, according to the second invention,
An apparatus body coupled to negative pressure generating means for aspirating fluid;
A rotating body that is rotatably mounted on the apparatus body and whose rotation axis intersects the object surface;
A rotational drive source for rotationally driving the rotating body;
In the negative pressure seal member having two openings and having an overall shape in an annular shape,
One opening is formed with a fixed part to be attached to the rotating body, and the other opening is formed with a contact part that first contacts the object surface and an extension part that extends further outward from the contact part. In addition, a connecting portion that connects the two openings is formed between the one opening and the other opening, and thus cooperates with the apparatus main body, the rotating body, and the object surface. A negative pressure sealing member that acts to define a reduced pressure region;
A surface suction cleaning apparatus comprising: a moving means for maintaining a distance between the apparatus main body and the object surface at an arbitrary distance and moving the apparatus main body along the object surface;
A surface suction cleaning device, wherein the negative pressure sealing member is rotationally driven in a direction opposite to a direction in which the device is to be rotated when the device is rotated on the spot using the moving means. Provided.

The present invention brings about the following effects.
In the apparatus of the first invention, there is no need to communicate the pressure adjusting means provided in the apparatus main body with the rotating pressure adjusting space via the swivel joint mechanism, so the mechanism becomes very simple. The cause of failure is reduced and the manufacturing cost is also reduced.
In the device of the second invention, when the device moves along the object surface by a simple means such that the negative pressure sealing member is rotationally driven in a direction opposite to the direction in which the device is to be swung, It is possible to prevent the turning function from being hindered.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention, that is, the apparatus constructed according to the first and second inventions, will be described in further detail with reference to the accompanying drawings.
Note that the auxiliary seal member 7, the pressure adjusting means 17, and the second decompression region 22 included in the apparatus configured according to the first invention may be included in the apparatus configured according to the second invention. It does not have to be provided.

Referring to FIGS. 1 to 7, the illustrated apparatus includes an apparatus main body 2, and the apparatus main body 2 is made of a rigid material and has a cylindrical shape in the shape of a cylindrical box opened in the direction of the object surface 1. A box member 201, a square box member 202 in the shape of a square box welded to the bottom of the cylindrical box member 201 and opened in the direction of the object surface 1, and both sides welded to the bottom of the square box member 202 are opened. The cylindrical member 203 is formed.
On the cylindrical member 203 of the apparatus main body 2, a rotating hose joint member 33 in the shape of a cylindrical box opened in the direction of the object surface 1 is rotatable about an axis that intersects the object surface 1 almost perpendicularly. The suction hose joint 301 is welded to the cylindrical side surface of the rotary hose joint member 3, and the suction hose joint 301 is connected to a negative pressure generating means (such as a vacuum pump) via a suction hose (not shown). (Not shown).
The axis of the suction hose joint 301 is arranged at a position substantially parallel to the object surface 1. To describe the advantages, for example, the apparatus adsorbs to the vertical object surface 1 and moves along the object surface 1. In this case, the suction hose always hangs down in the direction in which gravity acts through the center of gravity of the device, so that the device is not hindered from moving by a relatively heavy suction hose, and thus the device is moved up and down. It can move freely left and right and diagonally.
The rotary hose joint member 3 is also welded with a fall prevention fitting 302 to which a fall prevention rope is attached to prevent the apparatus from dropping when the vacuum pump is stopped due to a power failure or the like. .
The inner ring portion of one ball bearing 4 is fixed to the outer peripheral edge of the opening of the cylindrical box member 201 of the apparatus main body 2.
The axis of the ball bearing 4 intersects the object surface 1.
A rotating body 5 is fixed to the outer ring portion of the ball bearing 4.
The rotating body 5 is formed of an annular rotating disk member 501 orthogonal to the axis of the ball bearing 4, a cylindrical member 502 that fixes the outer ring portion of the ball bearing 4, and a sprocket member 503.
A negative pressure sealing member 6 made of a relatively flexible material such as polyurethane or synthetic rubber is fixed to the inner peripheral edge of the rotating disk member 501 of the rotating body 5.
The negative pressure seal member 6 has two openings and has an annular shape as a whole.
A fixed portion 601 to be attached to the rotating body 5 is formed in one opening of the negative pressure seal member 6, and the contact portion 603 that first contacts the object surface 1 and the contact portion 603 are further provided in the other opening. An extension portion 604 extending outward is formed, and a connecting portion 602 for connecting both the opening portions is formed between the one opening portion and the other opening portion. The member 6 defines the first decompression region 21 in cooperation with the apparatus main body 2, the rotating body 5 and the object surface 1.
An auxiliary seal member 7 made of a relatively flexible material such as polyurethane or synthetic rubber is fixed to the outer peripheral edge of the rotating disk member 501 of the rotating body 5.
The auxiliary seal member 7 has two openings and the entire shape is annular.
One opening of the auxiliary seal member 7 is fixed to the outer peripheral edge of the rotary disk member 501, and the other opening is in close contact with the end of the extension 604 of the negative pressure seal member 6.
Further, a connecting portion 602 that connects both the opening portions is formed between the one opening portion and the other opening portion. Thus, the auxiliary seal member 7 includes the rotating body 5 and the negative pressure seal member. 6 defines a second reduced pressure region 22.
A material 605 for cleaning the object surface 1 such as an abrasive member, a brush member, or a fiber member is attached to the extension 604 of the negative pressure seal member 6 via a Velcro tape 606 that is a one-touch contact means.
In addition, the part which the edge part of the auxiliary seal member 7 and the edge part of the extension part 604 of the negative pressure seal member 6 closely_contact | adhere may be fuse | melted and integrated. However, since the strength of the end portion increases and the flexibility of the end portion is hindered when the integration is performed, it is desirable that the integration is not performed when the object surface 1 has an uneven shape.

An air motor 8 with a speed reducer as a rotational drive source for rotationally driving the rotating body 5 is fixed to a portion where the bottom of the cylindrical box member 201 of the apparatus main body 2 is extended, and is attached to the output shaft of the air motor 8 with a speed reducer. A sprocket 9 is fixed, and a roller chain 10 is suspended between the sprocket member 503 and the sprocket 9.
At the bottom of the cylindrical box member 201 of the apparatus main body 2, there are two sets of driving wheel groups composed of two driving wheels 11 per set, and a total of four driving wheels 11 are rotatably mounted on two fixed shafts 12. Has been.
In FIG. 3, the vertical direction is the moving direction of the device, but two fixed shafts 12 that are orthogonal to the traveling direction are welded to the bottom of the cylindrical box member 201 above and below the traveling direction. The bracket 204 is fixed.
A sprocket 13 is fixed to each drive wheel 11.
Electric motors 14 with reduction gears are fixed to both side surfaces of the square box member 202 of the apparatus main body 2, and sprockets 15 are fixed to the output shafts of the electric motors 14 with reduction gears.
In FIG. 3, the two drive wheels 11 on the left side are rotationally driven via a roller chain 16 by the electric motor 14 with a reducer on the right side in FIG.
In FIG. 3, the two right driving wheels 11 are rotationally driven through a roller chain 16 by a left reduction gear-equipped electric motor 14 in FIG. 1 as a set of driving wheel groups.

The rotating disk member 501 of the rotator 5 is provided with a valve hole 504, a valve hole 504, a valve plate 171 that closes the valve hole 504, and a valve that moves in and out of the rotating disk member 501. A rod 172 welded to the plate 171, a rod guide 173 that slidably holds the rod 172, and the valve plate 171 is disposed between the valve plate 171 and the rod guide 173, so that the valve plate 171 is directed to the rotating disc member 501. There is provided a pressure adjusting means 17 composed of a compression coil spring 174 pressed against the pressure coil spring 174.
The negative pressure sealing member 6 is provided with a small hole 607 that communicates the first reduced pressure region 21 and the second reduced pressure region 22. The small hole 607 is also an element constituting the pressure adjusting means 17 so-called a pressure adjusting valve.
Regarding the specifications of the compression coil spring 174 such as the area of the valve hole 504 and the small hole 607 and the spring constant, the pressure of the second decompression region 22 is maintained at a pressure lower than the pressure of the fluid surrounding the object surface 1, and The pressure of the second pressure reducing region 22 is maintained in a higher pressure than the pressure of the first pressure reducing region 21, and the size of the negative pressure sealing member 6 and the specifications of the negative pressure generating means are taken into consideration. It is determined as appropriate.

Below, the effect of the apparatus mentioned above is demonstrated.
When a negative pressure generating means (not shown) is energized, a fluid such as the atmosphere inside the first reduced pressure region 21 is discharged to the outside through the suction hose joint 301 and the suction hose (18 in FIG. 2). One decompression region 21 is decompressed as required.
Thus, when the first depressurization region 21 is depressurized, the pressure of the surrounding fluid acting on the apparatus main body 2 due to the fluid pressure difference between the inside and the outside of the first depressurization region 21 causes the two drive wheels 11 to move. To the object surface 1, and thus the surrounding fluid pressure causes the device to be adsorbed to the object surface 1.
When the pressure inside the first reduced pressure region 21 is maintained at a desired pressure, the negative pressure sealing member 6 is strongly brought into contact with the object surface 1 due to the pressure difference between the inside and outside of the first reduced pressure region 21. Therefore, the fluid outside the first decompression region 21 is prevented from flowing into the inside as much as possible.

Thus, when the first decompression region 21 is decompressed, a fluid such as air inside the second decompression region 22 passes through the small hole 607 provided in the negative pressure seal member 6 to the first decompression region 21. Inflow, and thus the pressure in the second decompression region 22 is decompressed. However, when the pressure in the second decompression region 22 exceeds a predetermined pressure, the object surface 1 is surrounded. The pressure of the external fluid such as air overcomes the force of the compression coil spring 174 to push the valve plate 171 open, and thus the flow rate is much higher than the fluid flowing into the first decompression region 21 through the small hole 607. The fluid flows into the second reduced pressure region 22.
Thus, when the external fluid flows into the second decompression region 22, the pressure in the second decompression region 22 is increased, but the pressure in the second decompression region 22 exceeds the preset arbitrary pressure. When the pressure is increased, the force of the compression coil spring 174 overcomes the pressure of an external fluid such as air surrounding the object surface 1 to close the valve plate 171, and thus the external fluid is applied to the second decompression region 22. Inflow is blocked.
Thus, the pressure in the second reduced pressure region 22 is maintained at a pressure lower than the pressure of the fluid surrounding the object surface 1 by the action of the pressure adjusting means 17 as described above. The pressure is maintained higher than the pressure.
Thus, if the pressure in the second decompression region 22 is maintained at a pressure lower than the pressure of the fluid surrounding the object surface 1, the ground pressure between the negative pressure seal member 6 and the object surface 1 is reduced. Thus, the frictional force between the negative pressure sealing member 6 and the object surface 1 is reduced.
When the pressure in the second decompression region 22 is equal to the pressure of the fluid surrounding the object surface 1, the ground pressure between the negative pressure seal member 6 and the object surface 1 increases. The frictional force between the negative pressure seal member 6 and the object surface 1 is increased, and the traveling function of the device is hindered due to the increased frictional force. The contents of inhibition will be described in detail.

In FIG. 3, when the electric motor 14 with a speed reducer is operated and the two drive wheels 11 are rotationally driven in the same direction, the apparatus goes straight (up or down) along the object surface 1.
When the two drive wheels 11 are driven to rotate in the opposite directions, the device turns (turns left or turns right).
In FIG. 1, in a state where the apparatus is adsorbing negative pressure to the object surface 1, the left-side electric motor 14 with a reduction gear and the right-side electric motor 14 with a reduction gear are counterclockwise as viewed from the left in FIG. When rotating, the device goes straight up.
Further, when the left-side electric motor 14 with a reduction gear and the right-side electric motor 14 with a reduction gear are rotationally driven in the clockwise direction when viewed from the left direction in FIG. 1, the apparatus moves straight down.
Further, the left reduction gear-equipped electric motor 14 is driven to rotate counterclockwise as viewed from the left in FIG. 1, and the right reduction gear electric motor 14 is rotated in the clockwise direction as viewed from the left in FIG. When driven, the device does not rise or fall, and can turn clockwise to change the direction in which the device travels.
Further, the left-side electric motor 14 with a speed reducer is rotationally driven clockwise when viewed from the left in FIG. 1, and the right-side electric motor 14 with speed reducer is rotated counterclockwise when viewed from the left in FIG. When driven, the device does not rise or fall, but can turn counterclockwise and change the direction in which the device travels.
Further, the left-side electric motor 14 with a speed reducer is rotationally driven in a counterclockwise direction when viewed from the left in FIG. 1, and the right-side electric motor 14 with a speed reducer is viewed from the left in FIG. When it is rotationally driven at a high speed in the clockwise direction, the device rises while turning to the left, that is, the direction in which the device travels can be changed.
Further, the left speed reducer-equipped electric motor 14 is rotationally driven at a high speed counterclockwise when viewed from the left in FIG. 1, and the right speed reducer-equipped electric motor 14 is viewed from the left in FIG. When rotating at a slow speed in the clockwise direction, the device rises while turning right, that is, the direction in which the device travels can be changed.
Further, the left-side electric motor 14 with a speed reducer is rotationally driven in a clockwise direction when viewed from the left in FIG. 1, and the right-side electric motor 14 with a speed reducer is viewed in the clockwise direction when viewed from the left in FIG. When rotating at a high speed, the device descends while turning to the left, that is, the direction in which the device travels can be changed.
Further, the left-side electric motor 14 with a speed reducer is rotationally driven in a clockwise direction when viewed from the left in FIG. 1, and the right-side electric motor 14 with a speed reducer is viewed in the clockwise direction when viewed from the left in FIG. When rotating at a slow speed, the apparatus descends while turning right, that is, the direction in which the apparatus travels can be changed.

When the air motor 8 with a speed reducer is energized in the suction state, the friction force between the negative pressure seal member 6 and the object surface 1 is larger than the friction force between the drive wheel 11 and the object surface 1. Without rotating, the rotating body 5, the negative pressure seal member 6 and the auxiliary seal member 7 rotate as required.
Thus, the material 605 for cleaning the object surface 1 such as an abrasive member attached to the extension 604 of the negative pressure seal member 6 rotates while contacting the object surface 1, and the object surface 1 is acted on by the action of the cleaning material. Is cleaned.
Further, since an external fluid flows into the first reduced pressure space through a slight gap between the cleaning material such as an abrasive member and the object surface 1, dust generated during cleaning by the flow of the fluid is removed from the first reduced pressure space. Can be collected by suction.

When the pressure in the second decompression region 22 is equal to the pressure of the fluid surrounding the object surface 1, the ground pressure between the negative pressure seal member 6 and the object surface 1 increases, and thus the negative pressure The frictional force between the seal member 6 and the object surface 1 is increased, and the traveling function of the apparatus is hindered due to the increase in the frictional force, which will be described below with reference to FIG.
That is, there are two means as described above as means for changing the traveling direction of the apparatus. First, in the case of using means for rotating the two driving wheels 11 in opposite directions to turn the apparatus on the spot. ,
For example, when the negative pressure seal member 6 is rotating in the clockwise direction, the torque to be rotated in the counterclockwise direction with respect to the apparatus main body 2 acts strongly due to the increase in the frictional force. It becomes very difficult to turn clockwise.
Next, in the case of using means for driving the two driving wheels 11 in the same direction and rotating at different rotational speeds to curve the device,
For example, when the negative pressure seal member 6 is rotating in the clockwise direction, the torque to be rotated in the counterclockwise direction with respect to the apparatus main body 2 acts strongly due to the increase in the frictional force. It becomes very difficult to travel while turning rightward in the direction of travel.

As described above, when the pressure in the second decompression region 22 is equal to the pressure of the fluid surrounding the object surface 1, the ground pressure between the negative pressure seal member 6 and the object surface 1 increases. Therefore, the frictional force between the negative pressure sealing member 6 and the object surface 1 is increased, and the running function of the apparatus is hindered due to the increase in the frictional force.
However, in the apparatus of the first invention, if the pressure in the second decompression region 22 is maintained at a pressure lower than the pressure of the fluid surrounding the object surface 1, the negative pressure sealing member 6 and the object surface 1 Since the ground contact pressure is reduced, the frictional force between the negative pressure seal member 6 and the object surface 1 is thus reduced, and thus it is possible to prevent the running function of the apparatus from being hindered.

As described above, when the pressure in the second decompression region 22 is equal to the pressure of the fluid surrounding the object surface 1, the ground pressure between the negative pressure seal member 6 and the object surface 1 increases. Therefore, the frictional force between the negative pressure sealing member 6 and the object surface 1 is increased, and the running function of the apparatus is hindered due to the increase in the frictional force.
However, when the apparatus of the second invention is swung on the spot, if the negative pressure seal member 6 is rotationally driven in a direction opposite to the direction in which the apparatus is desired to swivel, the traveling function of the apparatus, that is, the swiveling function is achieved. There is no inhibition.
Further, when the apparatus of the second invention is curved, when the apparatus is curved leftward in the traveling direction of the apparatus, the negative pressure seal member 6 is driven to rotate clockwise in FIG. In the case where the vehicle is curved in the right direction toward the traveling direction, the traveling function of the device, that is, the curved traveling function is hindered if the negative pressure sealing member 6 is configured to rotate counterclockwise in FIG. There is nothing.

Although the preferred embodiment of the apparatus of the present invention has been described above, various embodiments of the apparatus of the present invention can be considered in addition to the preferred embodiment according to the claims.
In the above description of the preferred embodiment of the apparatus of the present invention, the apparatus of the present invention is described as being on the surface of an object in the atmosphere. However, the apparatus of the present invention is also applicable in water. be able to. As the negative pressure generating means in such a case, a water pump or a water drive ejector can be used instead of the vacuum pump.

The surface suction cleaning device as described above absorbs foreign matter such as dirt, rust, deteriorated coating or aquatic organisms while adsorbing to the object surface using negative pressure and moving along the object surface. It can be conveniently used as a cleaning device having a suction function for performing operations such as removing the foreign matter and sucking and collecting the removed foreign matter.

1 is a plan view of a preferred embodiment of an apparatus constructed in accordance with the present invention. The right view in the apparatus shown in FIG. The rear view which looked at the apparatus shown in FIG. 1 from the direction of the object surface. Sectional drawing of AA in the apparatus shown in FIG. The BB expanded partial sectional view in the apparatus shown in FIG. Sectional drawing of CC in the apparatus shown in FIG. The expanded sectional view of the D section in the apparatus shown in FIG.

Object surface 1
Device body 2
Cylindrical box member 201
Square box member 202
Cylindrical member 203
Bracket 204
Rotating hose joint member 3
Suction hose fitting 301
Fall prevention bracket 302
Ball bearing 4
Rotating body 5
Rotating disk member 501
Cylindrical member 502
Sprocket member 503
Valve hole 504
Negative pressure seal member 6
Fixed part 601
Connecting part 602
Contact portion 603
Extension 604
Material 605 for cleaning
Velcro tape 606
Small hole 107
Auxiliary seal member 7
Air motor with speed reducer 8
Sprocket 9
Roller chain 10
Driving wheel 11
Ball bearing 111
Fixed shaft 12
Sprocket 13
Electric motor 14 with reduction gear
Sprocket 15
Roller chain 16
Pressure adjusting means 17
Suction hose 18
Valve plate 171
Rod 172
Rod guide 173
Compression coil spring 174
First decompression region 21
Second decompression region 22

Claims (10)

An apparatus body coupled to negative pressure generating means for aspirating fluid;
A rotating body rotatably mounted on the apparatus main body, the rotation axis of which intersects the surface of the object; a rotational drive source for rotationally driving the rotating body; and two openings, the overall shape forming an annular shape In the negative pressure sealing member, a fixed portion to be attached to the rotating body is formed in one opening, and a contact portion that first contacts the object surface and a further outer side from the contact portion in the other opening. An extension portion extending to the first opening portion is formed, and a connecting portion for connecting the two opening portions is formed between the one opening portion and the other opening portion. A negative pressure seal member that defines a first reduced pressure region in cooperation with the body and the surface of the object; and an auxiliary seal member having two openings and having an annular shape as a whole. Fixed to the body, the other opening is in close contact with the extension of the negative pressure seal member In addition, a connecting portion for connecting both the opening portions is formed between the one opening portion and the other opening portion. Thus, the first opening portion cooperates with the rotating body and the negative pressure sealing member. An auxiliary seal member defining two decompression regions; maintaining the pressure in the second decompression region at a pressure lower than the pressure of the fluid surrounding the object surface, and maintaining the pressure in the second decompression region A pressure adjusting means for maintaining a pressure higher than the pressure in the first reduced pressure region; maintaining a distance between the apparatus main body and the object surface at an arbitrary distance, and maintaining the apparatus main body along the object surface. A surface suction cleaning device comprising moving means for moving;
A surface suction cleaning device comprising a pressure adjusting valve in the rotating body as the pressure adjusting means. Comprising the moving means inside the first reduced pressure region;
2. The apparatus according to claim 1, wherein the moving means is composed of two drive wheel groups each including at least two drive wheels per set, or two endless rails. 3. The negative pressure sealing member according to claim 1, wherein a material for cleaning the object surface such as an abrasive member, a brush member, or a fiber member is attached to the other opening. The device described in 1. 4. The auxiliary seal member according to claim 1, wherein a portion of the auxiliary seal member where the other opening is in close contact with the extension of the negative pressure seal member is fused and integrated. 5. Equipment. The apparatus according to any one of claims 1 to 4, further comprising a suction hose coupling member that is rotatably mounted on the apparatus main body and whose rotation axis substantially intersects the surface of the object. . An apparatus body coupled to negative pressure generating means for aspirating fluid;
A rotating body rotatably mounted on the apparatus main body, the rotation axis of which intersects the surface of the object; a rotational drive source for rotationally driving the rotating body; and two openings, the overall shape forming an annular shape In the negative pressure sealing member, a fixed portion to be attached to the rotating body is formed in one opening, and a contact portion that first contacts the object surface and a further outer side from the contact portion in the other opening. An extension portion extending to the first opening portion is formed, and a connecting portion for connecting the two opening portions is formed between the one opening portion and the other opening portion. A negative pressure sealing member that cooperates with the body and the object surface to define a reduced pressure region; maintains a distance between the apparatus body and the object surface at an arbitrary distance, and moves the apparatus body along the object surface. A surface suction cleaning device comprising moving means for moving;
A surface suction cleaning device, wherein the negative pressure sealing member is rotationally driven in a direction opposite to a direction in which the device is to be rotated when the device is rotated on the spot using the moving means. When the apparatus is moved in a curve using the moving means, the negative pressure seal member should be turned clockwise when looking at the apparatus from a position away from the object surface when turning to the left in the running direction of the apparatus. The negative pressure seal member is configured to be driven to rotate counterclockwise when viewed from the position away from the object surface when it is rotated and curved in the right direction toward the traveling direction of the apparatus. The device according to claim 6. The moving means is provided inside the decompression region,
The said moving means is comprised from 2 sets of drive wheel groups which consist of at least 2 drive wheels per set, or 2 sets of endless rails, The Claim 6 thru | or 7 characterized by the above-mentioned. apparatus. 9. The negative pressure sealing member according to claim 6, wherein a material for cleaning the object surface such as an abrasive member, a brush member, or a fiber member is attached to the other opening. The device described in 1. 10. The apparatus according to claim 6, further comprising a suction hose coupling member that is rotatably mounted on the apparatus main body and whose rotation axis intersects the object surface substantially perpendicularly. .

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