JP2018069125A - Movable body for cleaning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable body for cleaning which can clean a deep inside of a thin and winding tube body, for example an air duct or the like.SOLUTION: A movable body 1a for cleaning includes an extensible part 2 which is arranged along a longitudinal direction of a tube body T and has a center axis O. The movable body 1a for cleaning can move in an inside of the tube body T by alternately and repeatedly operating the extensible part 2 in the inside of the tube body T between a first state and a second state in which the extensible part extends at least in an axial direction along the center axis O or a radial direction orthogonal to the center axis O from the first state. The movable body includes a cleaning body 3 which contacts with an adhering matter adhering to an inner peripheral surface of the tube body T and separates the adhering matter from the inner peripheral surface.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a cleaning moving body.

  Conventionally, a cleaning tool for cleaning deposits such as dust or dust adhering to the inner peripheral surface of an air duct such as an air conditioner or a 24-hour ventilation facility provided in an office building, factory or detached house It has been known. For example, the cleaning tool described in Patent Document 1 is composed of one to three thin rubber tubes attached to the tip of an air hose. When this air hose is inserted from one end of the air duct and compressed air is fed into the air hose, the rubber tube at the tip can knock the inner peripheral surface of the air duct and separate the deposits from the inner peripheral surface. And the deposit | attachment isolate | separated in this way can be sucked by the suction device from the other end part of an air duct.

JP 2013-150960 A

  However, in the conventional cleaning tool, even when trying to clean a thin and winding air duct, such as an air duct of a 24-hour ventilation facility in a detached house, the cleaning tool does not reach the back and cannot be cleaned. There was a problem.

  The present invention has been developed in view of such problems, and an object thereof is to provide a cleaning moving body that can clean the inside of a tubular body such as an air duct that is thin and twisted. To do.

The cleaning moving body according to the present invention includes:
A telescopic part having a central axis disposed along the longitudinal direction of the tubular body;
In the inside of the tubular body, the extendable portion extends from the first state and from the first state at least in an axial direction along the central axis or in a radial direction perpendicular to the central axis. A movable body for cleaning that can move inside the tube body by alternately and repeatedly operating between the state,
A cleaning body is provided, which comes in contact with the deposit attached to the inner peripheral surface of the tubular body and separates the deposit from the inner peripheral surface.

  Moreover, in the cleaning moving body according to the present invention, it is preferable that the cleaning body is provided at least in the stretchable part.

  Moreover, in the cleaning movable body according to the present invention, it is preferable that the expansion / contraction part is a radial expansion / contraction part that is in the second state by extending at least in the radial direction from the first state. .

  Further, in the cleaning moving body according to the present invention, the radially extending and contracting portion is deformed so that the diameter of the diaphragm portion is reduced by the discharge of fluid from the pressurizing chamber in contact with the inner peripheral surface of the cylindrical diaphragm portion. Between the diameter-reduced state as the first state and the diameter-enlarged state as the second state, in which the diaphragm portion is deformed so as to increase in diameter by supplying the fluid to the pressurizing chamber. It is preferable that the diameter-expandable portion is operable.

  Further, in the cleaning moving body according to the present invention, the expansion / contraction diameter part is deformed so that the diaphragm part is reduced in diameter and extended in the axial direction by discharging the fluid from the pressurizing chamber. As the second state, the diameter-reduced state and the axially-extended state as the state 1 and the diaphragm part are expanded so as to expand in diameter and contract in the axial direction by supplying the fluid to the pressurizing chamber. It is preferable that it is an expansion / contraction diameter / axial direction expansion / contraction part which can operate | move between these diameter expansion / axis direction contraction states.

Further, in the cleaning moving body according to the present invention,
The expansion / contraction diameter part has a base material part arranged on the outer side in the radial direction of the diaphragm part,
It is also preferable that the cleaning body is disposed on the base material portion.

  Moreover, in the cleaning mobile body according to the present invention, it is preferable that the cleaning body is provided at least in a portion other than the stretchable portion.

  Furthermore, in the cleaning moving body according to the present invention, it is also preferable that the cleaning body provided in a portion other than the expansion / contraction part is arranged so as to be operated by the operation of the expansion / contraction part.

  ADVANTAGE OF THE INVENTION According to this invention, the moving body for a cleaning which can clean the inside of pipes, such as an air duct which is thin and winding, to the back can be provided.

It is a perspective view which shows typically the mobile body for cleaning which concerns on 1st Embodiment of this invention, and shows the state which made each expansion-contraction diameter and axial direction expansion-contraction part into the diameter reduction and axial expansion state. FIG. 2 is a partial side cross-sectional view schematically showing the cleaning moving body shown in FIG. 1, showing a state in which each expansion / contraction diameter / axial extension part is in a reduced diameter / axial extension state. FIG. 2 is a partial side cross-sectional view showing an enlarged / reduced diameter / axially extending / contracting portion of the cleaning mobile body shown in FIG. Indicates the state. (A)-(c) is a perspective view which shows typically the modification of the expansion / contraction diameter and axial direction expansion-contraction part of the moving body for cleaning shown in FIG. 1, respectively. (A)-(c) is a perspective view which shows typically the other modification of the expansion / contraction diameter and axial direction expansion-contraction part of the moving body for cleaning shown in FIG. 1, respectively. It is a figure which shows typically the expansion-contraction diameter and axial direction expansion-contraction part in the mobile body for cleaning which concerns on 2nd Embodiment of this invention, (a) is a disassembled perspective view, (b) is a partial side sectional view. It is a disassembled perspective view which shows typically the expansion-contraction diameter and axial direction expansion-contraction part in the mobile body for cleaning which concerns on 3rd Embodiment of this invention. It is a disassembled perspective view which shows typically the expansion-contraction diameter and axial direction expansion-contraction part in the mobile body for cleaning which concerns on 4th Embodiment of this invention. It is a side view which shows typically the expansion / contraction diameter and axial direction expansion-contraction part in the mobile body for cleaning which concerns on 5th Embodiment of this invention, (a) is diameter reduction and axial expansion of an expansion / contraction diameter and axial direction expansion / contraction part. (B) shows the state which made the expansion / contraction diameter and axial direction expansion-contraction part into the diameter expansion and axial direction contraction state. It is a perspective view which shows typically two expansion / contraction diameters and an axial direction expansion-contraction part in the mobile body for cleaning which concerns on 6th Embodiment of this invention. It is a perspective view which shows typically the expansion / contraction diameter and axial direction expansion-contraction part in the mobile body for cleaning which concerns on 7th Embodiment of this invention. It is a perspective view which shows typically the cleaning body in the mobile body for cleaning which concerns on 8th Embodiment of this invention.

  Hereinafter, various embodiments of the present invention will be described in detail with reference to the drawings. In this specification, “front” means the direction in which the cleaning moving body moves inside the tube, and “rear” means the opposite direction. “Forward” means “forward” movement, and “backward” means “backward” movement.

  First, with reference to FIGS. 1-5, the moving body 1a for cleaning which concerns on 1st Embodiment of this invention is illustrated and demonstrated in detail.

  The cleaning moving body 1a according to the present embodiment is for cleaning the inside of the tube T (see FIG. 3). As shown in FIGS. 1 to 3, the cleaning moving body 1 a includes a stretchable part 2 having a central axis O arranged along the longitudinal direction of the tube T. Then, the cleaning moving body 1a is configured such that, within the tube T, the expansion / contraction part 2 is moved from the first state (see FIG. 3A) and the axis along the central axis O at least from the first state. Stretched in the direction (hereinafter, also simply referred to as “axial direction”) or in the radial direction (hereinafter also simply referred to as “radial direction”) orthogonal to the central axis O (in this example, stretched in the radial direction from the first state). The inside of the tubular body T is configured to be movable by alternately and repeatedly operating between the second state and the second state. Further, the cleaning moving body 1a comes into contact with an adhering matter (not shown) such as dust or dust adhering to the inner peripheral surface of the tube T, and the adhering matter (hereinafter also simply referred to as “adhering matter”). A cleaning body 3 is provided that is separated from the inner peripheral surface.

  In the present embodiment, the cleaning body 3 is provided in the extendable part 2. More specifically, the cleaning body 3 is provided on the surface of the extensible part 2 on the outer side in the radial direction (hereinafter also referred to as “radially outer side”). The cleaning body 3 is preferably provided at least in the stretchable part 2, but may be provided only in a part other than the stretchable part 2. For example, the cleaning body 3 may be provided on the outer peripheral surface of the connecting member 10a, which will be described later in detail, and as shown in FIG. 12 and described later in detail, cleaning is performed on the end surface of the connecting member 10h (in this embodiment, 10a). A body 3 may be provided. Further, for example, the cleaning body 3 is arranged over the entire outer surface of a holding body (not shown) having a cylindrical shape or a spherical shape, and the holding body is connected to the front or rear of the cleaning moving body 1a. You may comprise so that the inside of the tubular body T may be moved with the moving body 1a for cleaning. Further, the holding body may be connected to the intermediate portion in the front-rear direction of the cleaning moving body 1a so that the inside of the tubular body T is moved together with the cleaning moving body 1a. Moreover, you may provide the cleaning body 3 in the tube 17 for fluids which will be dragged in the back at the time of the movement of the cleaning moving body 1a. It is possible to provide the cleaning body 3 in parts other than the expansion / contraction part 2 such as the connecting members 10a and 10h, the holding body, and the fluid tube 17 as described above. The same applies to the examples.

  It is preferable that the cleaning body 3 is comprised with the hair or the nonwoven fabric. In this example, the cleaning body 3 is comprised by the brush body comprised by several hair. The plurality of hairs constituting the brush body may extend in the same direction as each other or may extend in different directions. Moreover, each hair may extend linearly, for example, may be curved into a wave shape or the like. Further, the density, length, thickness, softness and the like of the hairs constituting the brush body can be set as appropriate. Furthermore, the arrangement of the brush body in the stretchable part 2 and the angle formed by the root portions of the plurality of hairs constituting the brush body and the outer peripheral surface of the stretchable part 2 can be appropriately set. For example, the cleaning body 3 may be constituted by a brush body arranged over the entire outer peripheral surface of the extendable portion 2 as shown in FIG. 1, but extends in the axial direction as shown in FIG. It may be constituted by a plurality of existing brush bodies, may be constituted by a plurality of brush bodies extending in the circumferential direction as shown in FIG. 4B, or as shown in FIG. You may comprise by the brush body extended helically. Further, the cleaning body 3 may be constituted by a plurality of brush bodies extending in a mesh shape as shown in FIG. 5A, or a plurality of zigzag extending in a zigzag shape as shown in FIG. 5B. You may comprise by the brush body. In addition, the dashed-two dotted line in Fig.5 (a) has shown the position where the brush body which abbreviate | omitted illustration extends. Furthermore, as shown in FIG.5 (c), when the elastic part 2 will be in a 1st state, the length of hair is set to the length which a hair contacts with the internal peripheral surface of the tubular body T moderately. May be. Moreover, also when comprising the cleaning body 3 with a nonwoven fabric etc., the shape, arrangement | positioning, etc. of structural members, such as a nonwoven fabric which comprise the cleaning body 3, can be set suitably.

  In the present embodiment, since the cleaning body 3 is disposed in the stretchable portion 2, it operates integrally with the stretchable portion 2 along with the motion between the first state and the second state of the stretchable portion 2, Deposits can be separated from the inner peripheral surface of the tube T.

  In this embodiment, as shown in FIG. 3, the expansion / contraction part 2 is the radial direction expansion-contraction part 4 which will be in a 2nd state by extending | stretching at least radial direction from a 1st state. Therefore, according to the present embodiment, the cleaning body 3 can be operated in the radial direction integrally with the expansion / contraction part 2 along with the operation in which the expansion / contraction part 2 extends in the radial direction. The deposits can be effectively separated from the surface. In particular, when the cleaning body 3 is constituted by a brush body, for example, when the radial expansion / contraction part 4 extends in the radial direction, the deposit can be knocked down with the brush body. Further, as shown in FIG. 3A, in the first state where the radial expansion / contraction part 4 contracts in the radial direction, the radial expansion / contraction part 4 is supported by the brush body, and the radial expansion / contraction part 4 and the tubular body. Friction with the inner peripheral surface of T can be reduced.

  Moreover, in this embodiment, the radial direction expansion-contraction part 4 deform | transformed so that the diaphragm part 5 may be diameter-reduced by discharge | emission of the fluid from the pressurization chamber 6 which touches the internal peripheral surface of the cylindrical diaphragm part 5. An expanded / reduced diameter that is operable between a reduced diameter state as the state and a diameter expanded state as the second state in which the diaphragm portion 5 is deformed so as to increase in diameter by supplying fluid to the pressurizing chamber 6. Part 7. Therefore, according to this embodiment, since the expansion-contraction part 2 is provided over the perimeter around the central axis O, the cleaning body 3 can be arrange | positioned over a perimeter and cleaning efficiency can be improved. . In addition, the said radial direction expansion-contraction part 4 expands / contracts (extends or shrinks | contracts) at least one part of the circumferential direction, and the expansion / contraction diameter part 7 expands | contracts all the circumferential directions.

  Furthermore, in this embodiment, the expansion / contraction diameter part 7 is deformed so that the diaphragm part 5 is reduced in diameter by the discharge of the fluid from the pressurizing chamber 6 and is extended in the axial direction. Between the axially extended state and the expanded state and the axially contracted state as the second state in which the diaphragm portion 5 is expanded in diameter and contracted in the axial direction by supplying fluid to the pressurizing chamber 6. The expansion / contraction diameter / axial extension / contraction part 8a is operable.

  Below, the detail of each part of the mobile body 1a for cleaning which concerns on this embodiment is demonstrated. However, the details of each part described below do not limit the present invention, but merely show an example of an embodiment of the present invention.

  As shown in FIG. 1, the cleaning moving body 1 a of the present embodiment includes six expansion / contraction units 9 and five connection members 10 a that connect two expansion / contraction units 9 adjacent to each other. As shown in FIGS. 2 and 3, the telescopic unit 9 includes two end members 11 having a substantially cylindrical shape centered on the central axis O, and an inner cylinder 12 that connects the two end members 11. An outer cylinder 13 disposed on the outer side in the radial direction of the inner cylinder 12, and two fixing members 14 having a cylindrical shape for fixing both end portions in the axial direction of the outer cylinder 13 to the end member 11, respectively. I have. The inner cylinder 12 has a substantially cylindrical shape centered on the central axis O, and has a bellows portion 15 that can be elastically deformed in the axial direction. In the present embodiment, the outer cylinder 13 has a cylindrical shape centered on the central axis O, and a plurality of fibrous bodies extending in the axial direction are embedded in an elastic cylindrical body made of, for example, rubber. Further, it is composed of an axial fiber reinforced elastic cylindrical body.

  The plurality of fiber bodies are elastic cylinders so as to form a group of annular fibers arranged in a ring shape along the circumferential direction of the elastic cylinder bodies in the cross section (cross section perpendicular to the central axis O) of the elastic cylinder bodies. Can be embedded in the body. A plurality of annular fiber groups may be provided in the radial direction. In that case, it is preferable that the annular fiber groups are arranged with their phases shifted in the circumferential direction. In addition, each fiber body constituting the plurality of fiber bodies may be a single untwisted fiber (for example, one having a diameter of about 5 to 15 μm) that is not twisted, such as carbon roving. It may be a fiber cord manufactured by twisting or bundling a plurality of such single untwisted fibers. In addition, each fibrous body constituting the plurality of fibrous bodies is substantially non-extensible in the longitudinal direction (they hardly extend in the longitudinal direction when being pressurized to the pressurizing chamber 6).

  A through hole 16 is formed in one of the two end members 11, and one end of a fluid tube 17 having a fluid supply and discharge passage inside is disposed in the through hole 16. Yes. Therefore, in this embodiment, the pressurizing chamber 6 is defined and formed by the outer peripheral surface of the inner cylinder 12, a part of the inner peripheral surface of the outer cylinder 13, and a part of the outer peripheral surfaces of the two end members 11. Has been. Moreover, the diaphragm part 5 (expansion / contraction diameter and axial expansion / contraction part 8a) is formed by a part of the outer cylinder 13 (part not fixed by the fixing member 14). The cleaning body 3 constituted by a brush body is implanted in an elastic cylindrical body constituting the outer cylinder 13.

  As shown in FIG. 3A, the expansion / contraction unit 9 is deformed so that the expansion / contraction diameter / axial extension / contraction part 8a is reduced in diameter and extended in the axial direction by discharging the fluid from the pressurizing chamber 6. (Diameter / axial extension state, first state), the inner cylinder 12 can be deformed so as to extend in the axial direction. Further, as shown in FIG. 3B, the expansion / contraction unit 9 is deformed so that the expansion / contraction diameter / axial expansion / contraction part 8a expands and contracts in the axial direction by supplying fluid to the pressurizing chamber 6. (Expanded diameter / axially contracted state, second state), the inner cylinder 12 can be deformed so as to contract in the axial direction.

  The connecting member 10a has a substantially cylindrical shape, and is disposed between two end members 11 adjacent to each other. The connecting member 10 a is joined to these two end members 11.

  The outer cylinder 13 is a sleeve-like fiber in which, for example, the outside of the elastic cylinder is covered with a fiber cord knitted into a sleeve instead of the above-described axial fiber-reinforced elastic cylinder. You may comprise the reinforcement | strengthening type (what is called McKibben type) elastic cylinder. In this case, the cleaning body 3 can be implanted in the fiber cord knitted into the sleeve shape, for example.

  In the present embodiment, the cleaning moving body 1a can move inside the tubular body T by individually operating the six expanding / contracting diameter / axially extending / contracting portions 8a in a predetermined phase. For example, it is possible to stably move the inside of the tubular body T by generating a peristaltic motion in the six expansion / contraction diameter / axially extending / contracting portions 8a.

  In this case, the six expanding / contracting diameter / axially extending / contracting portions 8a can be operated in the following manner, for example. First, only the foremost expanded / reduced diameter / axially extending / contracting part 8a is brought into an expanded / axially contracted state and pressed against the inner peripheral surface of the tubular body T, and the expanded / reduced diameter / axially extending / contracting part 8a and the tubular T The expansion / contraction diameter / axially extending / contracting portion 8a is fixed to the inner peripheral surface of the tubular body T by a frictional force with the peripheral surface. Then, the expansion / contraction diameter / axial direction in the rearmost part is shifted from the front to the expansion / contraction state in the axial direction by moving the expansion / contraction diameter / axial expansion / contraction part 8a behind the expansion / contraction diameter / axial expansion / contraction part 8a in the foremost part. The telescopic part 8a is advanced. Next, the expansion / contraction diameter / axial expansion / contraction part 8a at the rearmost part is maintained in the expanded / axial contraction state, and the expansion / contraction diameter / axial expansion / contraction part 8a is fixed to the inner peripheral surface of the tube T. The expansion / contraction diameter / axial expansion / contraction part 8a in the foremost part is shifted by moving the expansion / contraction diameter / axial expansion / contraction part 8a in front of the expansion / contraction diameter / axial expansion / contraction part 8a from the front to the contraction diameter / axial expansion state. Is moved forward. Then, the expansion / contraction diameter / axial expansion / contraction part 8a in the foremost part is expanded and contracted in the axial direction and fixed to the inner peripheral surface of the tube T, and the expansion / contraction diameter / axial expansion / contraction part 8a in the rearmost part is contracted / diametered. Transition to the direction extension state. By repeating such an operation, it is possible to make a stable advance.

  In particular, when the tube T is arranged with a gradient with respect to the horizontal direction, for example, when the tube T extends in the vertical direction, the upward or downward movement is stabilized. In order to be able to do this, the frictional force for fixing between the inner peripheral surface of the tubular body T with the two or more expanded / reduced diameter / axially extending / contracting portions 8a in the expanded / axially contracted state at the same time. It may be operated to increase. Of course, even when the tube body T is horizontally disposed, the same operation can be performed. For example, five of the six expanded / reduced diameter / axially extending / contracting portions 8a are always expanded and axially contracted and fixed to the inner peripheral surface of the tube T, while one is contracted / axially expanded. It can be made to operate so that the part made into this diameter reduction and an axial direction extension state may be sent back from the front. Specifically, while the predetermined expanded / reduced diameter / axially stretchable part 8a is in the reduced diameter / axially stretched state, the expanded / reduced diameter / axially stretchable part 8a is shifted to the expanded diameter / axially contracted state, By moving the expansion / contraction diameter / axial extension / contraction part 8a one rearward of the expansion / contraction diameter / axial extension / contraction part 8a to the reduction diameter / axial extension state, the part to be reduced / axial extension state from the front to the rear Can be sent to.

  In order to stably move the inside of the tubular body T by such a peristaltic motion, the cleaning moving body 1a only needs to include three or more expansion / contraction diameter / axial expansion / contraction portions 8a. In order to enhance the stability of the movement and the cleaning effect by the cleaning body 3, the number of expansion / contraction diameters / axially extending / contracting portions 8a can be appropriately increased.

  In the first embodiment described above, the cleaning body 3 is disposed on the diaphragm portion 5. However, for example, as illustrated in FIG. 6, the cleaning body 3 is disposed on the outer peripheral surface of the cylindrical wall body 18 disposed on the radially outer side of the diaphragm portion 5. You may arrange. In FIG. 6, the expansion / contraction diameter and axial direction expansion-contraction part 8b (expansion-contraction part 2) in the mobile body 1b for cleaning which concerns on 2nd Embodiment are shown typically. In the present embodiment, the expansion / contraction diameter / axial extension / contraction part 8 b is configured by the diaphragm part 5 and a base part 20 described later of the cylindrical wall body 18. Other configurations are the same as those of the first embodiment described above. The cylindrical wall body 18 can be made of a metal such as aluminum, and has a plurality of slits 19 extending in the axial direction while being cylindrical. Each part sandwiched between two slits 19 adjacent to each other constitutes a base material part 20. The cleaning body 3 is disposed on these base material portions 20. Both end surfaces in the axial direction of the cylindrical wall 18 are arranged so as to face the end surface of the fixing member 14. And the collar part 21 provided in the connection member 10b is arrange | positioned at the radial direction outer side of the both ends of the axial direction of the cylinder wall body 18, respectively, and the cylinder wall body 18 falls in the expansion-contraction unit 9 by these collar parts 21 It is mounted impossible. In addition, you may comprise the cylinder wall body 18 so that attachment to the outer peripheral surface of the diaphragm part 5 is possible through a hook-and-loop fastener etc., for example.

  According to such a configuration, when the diaphragm part 5 is deformed so as to expand in diameter, the base material part 20 can be elastically deformed so as to be pushed by the diaphragm part 5 and extend in the radial direction. At that time, the slit 19 is opened, and the diaphragm portion 5 can be exposed. Therefore, for example, the diaphragm portion 5 made of rubber or the like is brought into contact with the inner peripheral surface of the tubular body T through the open slit 19 and the frictional force for fixing between the inner peripheral surface of the tubular body T is fixed. Can be secured.

  Further, as shown in FIG. 7, for example, the cleaning body 3 may be disposed on a plurality of erection members 22 that are erected on the connecting member 10c and elastically deformable so as to extend in the radial direction. In FIG. 7, the expansion / contraction diameter and axial direction expansion-contraction part 8c (expansion-contraction part 2) in the mobile body 1c for cleaning which concerns on 3rd Embodiment are shown typically. In the present embodiment, the expansion / contraction diameter / axially extending / contracting portion 8 c is configured by the diaphragm portion 5 and a base material portion 20 described later of the installation member 22. Other configurations are the same as those of the first embodiment described above. The erection member 22 can be made of metal such as aluminum, for example, and both end portions thereof are inserted and fixed in the fixing recesses 23 provided in the two connecting members 10c adjacent to each other. A portion of the erection member 22 that can be elastically deformed so as to extend in the radial direction constitutes the base material portion 20, and the cleaning body 3 is disposed on the base material portion 20.

  For example, as shown in FIG. 8, the cleaning body 3 may be disposed on an elastic cylindrical body 24 that is disposed on the outer side in the radial direction of the diaphragm portion 5 and has a cylindrical shape such as rubber. FIG. 8 schematically shows the expansion / contraction diameter / axial extension / contraction part 8d (extension / contraction part 2) in the cleaning moving body 1d according to the fourth embodiment. In the present embodiment, the expansion / contraction diameter / axial expansion / contraction part 8 d is configured by the diaphragm part 5 and the elastic cylindrical body 24 constituting the base part 20. Other configurations are the same as those of the first embodiment described above. Therefore, when the diaphragm part 5 is deformed so as to expand in diameter, the base material part 20 can be elastically deformed so as to be pushed by the diaphragm part 5 and expand in diameter. At that time, for example, an elastic cylindrical body 24 made of rubber or the like is brought into contact with the inner peripheral surface of the tube T to secure a frictional force for fixing with the inner peripheral surface of the tube T. be able to.

  As in the case of the above-described second to fourth embodiments, the expansion / contraction diameter / axial expansion / contraction portions 8b to 8d include the diaphragm portion 5 and the base material portion 20 disposed on the radially outer side of the diaphragm portion 5. By having the configuration in which the cleaning body 3 is arranged on the base material portion 20, repair when the cleaning body 3 is worn can be facilitated. That is, the cylindrical wall 18, the erection member 22, or the elastic cylindrical body 24 (the worn base material 20 and the cleaning body 3) are removed from the expansion / contraction unit 9, and the new base material 20 and the cleaning body 3 are easily attached. be able to. In addition, in the 2nd-4th embodiment mentioned above, the cleaning body 3 can be suitably arrange | positioned also in parts other than an expansion / contraction diameter and axial direction expansion-contraction part 8b-8d.

  In addition, in each embodiment mentioned above, although demonstrated as what arrange | positions the cleaning body 3 to all the six expansion / contraction diameter and axial direction expansion-contraction parts 8a-8d, you may make it arrange | position only to one part.

  Moreover, in each embodiment mentioned above, although the cleaning body 3 was provided in the part except the axial direction edge in the outer peripheral surface of the expansion / contraction diameter and axial direction expansion-contraction part 8a-8d, or the part except an axial direction edge, For example, as shown in FIGS. 9 to 11, the cleaning body 3 may be provided only on the axial end edge of the outer peripheral surface of the expansion / contraction diameter / axial expansion / contraction portions 8 e to 8 g. In FIG. 9, the expansion / contraction diameter and axial direction expansion-contraction part 8e (expansion-contraction part 2) in the mobile body 1e for cleaning which concerns on 5th Embodiment are shown typically. As shown in FIG. 9 (a), when the expanded / contracted diameter / axially extending / contracting portion 8e is in a contracted diameter / axially extended state, the plurality of bristles constituting the brush body of the cleaning body 3 have an expanded / contracted diameter / It extends in the axial direction from one axial end edge on the outer peripheral surface of the axial expansion / contraction part 8e toward the other axial end edge. When the expanded / reduced diameter / axially extending / contracting portion 8e is in the expanded / axially contracted state, as shown in FIG. 9B, the plurality of bristles constituting the brush body of the cleaning body 3 each have a diameter. It will turn to the outside. Other configurations are the same as those of the first embodiment described above. According to the present embodiment, even when the cleaning body 3 is provided only at the axial end edge on the outer peripheral surface of the expansion / contraction diameter / axial extension / contraction part 8e, the cleaning body 3 is integrated with the expansion / contraction diameter / axial extension / contraction part 8e. Since it can be operated in the direction, deposits can be effectively separated from the inner peripheral surface of the tube T. Needless to say, the cleaning body 3 may be appropriately provided in a portion excluding the end edge in the axial direction on the outer peripheral surface of the expansion / contraction diameter / axial expansion / contraction part 8e. Moreover, the cleaning body 3 can be suitably provided also in parts other than the expansion / contraction diameter and the axial direction expansion-contraction part 8e.

  Also, as shown in FIGS. 10 and 11, for example, the cleaning body 3 is operated in conjunction with the operation of the expansion / contraction diameter / axial expansion / contraction portions 8f, 8g. You may arrange | position only to the axial direction edge on an outer peripheral surface. FIG. 10 schematically shows two expansion / contraction diameter / axial extension / contraction parts 8f (extension / contraction part 2) in the cleaning movable body 1f according to the sixth embodiment. In the sixth embodiment, the cleaning body 3 is configured such that the other expansion / contraction diameter / axial expansion / contraction part 8f located in front of the expansion / contraction diameter / axial expansion / contraction part 8f provided with the cleaning body 3 is contracted from the expansion / axial contraction state. A state in which a plurality of bristles constituting the brush body of the cleaning body 3 are directed in the axial direction (not shown) from the state in which the brush body of the cleaning body 3 faces in the radial direction (see FIG. 10). In other words, the interlocking mechanism 26 is connected to the other expansion / contraction diameter / axial expansion / contraction part 8f. Other configurations are the same as those of the first embodiment described above. In addition, it is good also as a structure provided with the cleaning body 3 suitably also in the part except the axial direction edge in the outer peripheral surface of the expansion / contraction diameter and axial direction expansion-contraction part 8f. Moreover, you may arrange | position the cleaning body 3 connected with the interlocking mechanism part 26 in the part except the axial direction edge in the outer peripheral surface of the expansion / contraction diameter and axial direction expansion-contraction part 8f. Furthermore, the cleaning body 3 can be appropriately provided in a portion other than the expansion / contraction diameter / axially extending / contracting portion 8f.

  FIG. 11 schematically shows the expansion / contraction diameter / axial extension / contraction part 8g (extension / contraction part 2) in the cleaning movable body 1g according to the seventh embodiment. In the seventh embodiment, the cleaning body 3 is interlocked with the operation between the expanded / reduced diameter / axially expanded / contracted portion 8g between the expanded / reduced diameter / axially contracted state and the contracted / axially expanded state by the ball screw mechanism 27. The plurality of bristles constituting the brush body of the cleaning body 3 are arranged so as to operate in the circumferential direction around the central axis O. Other configurations are the same as those of the first embodiment described above. In addition, it is good also as a structure provided with the cleaning body 3 suitably also in the part except the axial direction edge in the outer peripheral surface of the expansion-contraction diameter and axial direction expansion-contraction part 8g. Moreover, you may arrange | position the cleaning body 3 connected with the ball screw mechanism part 27 in the part except the axial direction edge in the outer peripheral surface of the expansion-contraction diameter and axial direction expansion-contraction part 8g. Furthermore, the cleaning body 3 can be suitably provided also in parts other than the expansion / contraction diameter and the axial direction expansion-contraction part 8g.

  For example, as a modification of each embodiment described above, when the cleaning body 3 is provided at least in a portion other than the stretchable portion 2, the cleaning body 3 provided in a portion other than the stretchable portion 2 is provided in the stretchable portion 2. You may arrange | position so that it may be operated by operation | movement of (1). FIG. 12 schematically shows the cleaning body 3 in the cleaning moving body 1h according to the eighth embodiment. The cleaning body 3 is constituted by a brush body and is disposed on the end face of the connecting member 10h. The telescopic unit 9 and the connecting member 10h are connected in the same manner as in the case of the first embodiment described with reference to FIG. 1, thereby constituting a cleaning moving body 1h (not shown). In the present embodiment, as shown in FIG. 12A, the brush body of the cleaning body 3 is configured when the expanded / reduced diameter / axially extending / contracting portion 8 h (expandable portion 2) is in the reduced diameter / axially extending state. Each of the plurality of hairs extends in the axial direction from the end face of the connecting member 10h. When the expanded / reduced diameter / axially extending / contracting portion 8h is in the expanded diameter / axially contracted state, as shown in FIG. 12 (b), each of the plurality of hairs constituting the brush body of the cleaning body 3 expands / contracts. It is pushed by the expansion / contraction diameter / axially extending / contracting portion 8h deformed so as to be diametrically deformed so as to be directed radially outward. Thus, the cleaning function can be effectively enhanced by disposing the cleaning body 3 provided in a portion other than the stretchable portion 2 so as to be operated by the operation of the stretchable portion 2. In this embodiment, as shown in FIG. 12, the cleaning body 3 is provided only on the end surface of the connecting member 10h. However, the outer peripheral surface of the connecting member 10h and the outer peripheral surface of the expansion / contraction diameter / axially extending / contracting portion 8h. Needless to say, the cleaning body 3 may be provided in at least one of the other portions.

  The first to eighth embodiments of the present invention and various modifications thereof have been described above, but the above description only shows an example of the embodiment of the present invention, and unless it deviates from the gist of the invention, It goes without saying that various changes may be made.

  For example, in the above-described example, the expansion / contraction unit is formed in a cylindrical shape, but may be formed in a spherical shape, for example. In addition, the pressurizing chamber of the telescopic unit was partitioned and formed by an outer cylinder and an inner cylinder. However, without providing the inner cylinder, the two end members are configured in a disc shape, and these end members and the outer cylinder are formed. The pressurizing chamber may be defined and formed by a cylinder. Further, the plurality of fiber bodies embedded in the outer cylinder may be arranged so as to be inclined with respect to the axial direction. In this case, the expansion / contraction diameter / axis is increased in accordance with the operation of the expansion / contraction diameter / axial extension / contraction part. The direction stretchable portion can be deformed so as to be twisted around the central axis. Accordingly, it is possible to impart a movement that twists around the central axis to the cleaning body disposed in the expansion / contraction diameter / axially extending / contracting portion, and the cleaning effect can be enhanced.

  Further, the expansion / contraction part is not limited to the expansion / contraction diameter / axial expansion / contraction part. For example, the expansion / contraction part has a reduced diameter / axially contracted state as a first state in which the diaphragm part is reduced in diameter and contracted in the axial direction by discharging fluid from the pressurized chamber, and the pressurized chamber It may be possible to operate between the expanded state and the expanded state in the axial direction as the second state, in which the diaphragm portion is expanded in diameter by the supply of fluid to and deformed so as to extend in the axial direction. In this case, the outer cylinder can be formed of an elastic cylindrical body in which a plurality of fiber bodies extending in the axial direction are not embedded.

  Moreover, an expansion-contraction part is not restricted to an expansion / contraction diameter part. For example, the expansion and contraction unit described above includes a pressurizing chamber and an outer cylinder, but instead of these, for example, a driving unit such as a motor is connected to the driving unit via a ball screw mechanism, and is mutually connected. The distance between the two end members can be changed by the drive unit, for example, two end members having a disk shape, and a plurality of long members that are stretched between the end members and elastically deformed to extend radially outward. You may comprise by a plate-shaped object. An expansion / contraction part can be comprised by the part which can be elastically deformed so that it may extend | expand in radial direction of such a some elongate plate-shaped body.

  Moreover, an expansion-contraction part is not restricted to a radial direction expansion-contraction part. For example, the expansion / contraction part may be an axial expansion / contraction part that becomes the second state by extending only in the axial direction from the first state. Furthermore, the structure which has a 2 or less expansion-contraction part may be sufficient as the mobile body for cleaning. In this case, for example, the cleaning moving body is allowed to move forward inside the tube body, but the cleaning moving body is provided with a retreat restricting portion that restricts retreating, so that the cleaning movement is performed each time the telescopic portion operates. The body can be moved forward. Such a receding restriction part may be constituted by, for example, a brush body that is arranged in the expansion and contraction part and is configured by a plurality of hairs that are inclined backward toward the radially outer side. In this case, the brush body can be used as a cleaning body.

  Moreover, the structure which has a some expansion-contraction part from which a cleaning mobile body differs from each other may be sufficient. For example, the cleaning moving body can be configured by appropriately combining the first to eighth embodiments described above and the expansion and contraction portions of various modifications thereof. For example, the cleaning moving body may include two or more expanded / contracted diameter / axially extending / contracting parts and an axially extending / contracting part that is disposed between them, and expands / contracts only in the axial direction. In this case, you may make it provide a cleaning body in the outer surface of at least one of an expansion / contraction diameter and an axial direction expansion-contraction part and an axial direction expansion-contraction part. The cleaning moving body includes three or more expansion / contraction diameter / axial extension / contraction parts and at least one axial extension / contraction part provided at a front end and / or a rear end thereof. A cleaning body may be provided on the outer surface. In this case, it is needless to say that a cleaning body may be provided on a portion other than the outer surface of the axially extending / contracting portion. Furthermore, it is good also as a structure which further provided the axial direction expansion-contraction part between the said 3 or more expansion-contraction diameter and axial direction expansion-contraction parts, respectively.

  In addition, an imaging unit such as a camera or an illumination unit such as an electric lamp may be appropriately disposed in the forefront portion of the cleaning moving body.

1a to 1h Cleaning movable body 2 Stretchable part 3 Cleaning body 4 Radial direction stretchable part (stretchable part)
5 Diaphragm part 6 Pressurizing chamber 7 Expanded / contracted diameter part (expandable part)
8a-8h Expanding / contracting diameter and axial expansion / contraction part (expandable part)
DESCRIPTION OF SYMBOLS 9 Expansion / contraction unit 10a-10c, 10h Connection member 11 End part member 12 Inner cylinder 13 Outer cylinder 14 Fixing member 15 Bellows part 16 Through-hole 17 Tube for fluid 18 Cylindrical wall body 19 Slit 20 Base material part 21 Gutter part 22 Installation member 23 Fixing recess 24 Elastic cylindrical body 26 Interlocking mechanism portion 27 Ball screw mechanism portion T Tube O Center axis

Claims (8)

A telescopic part having a central axis disposed along the longitudinal direction of the tubular body;
In the inside of the tubular body, the extendable portion extends from the first state and from the first state at least in an axial direction along the central axis or in a radial direction perpendicular to the central axis. A movable body for cleaning that can move inside the tube body by alternately and repeatedly operating between the state,
A cleaning moving body comprising a cleaning body that comes into contact with an adherent adhering to an inner peripheral surface of the tubular body and separates the adhering matter from the inner peripheral surface.   The cleaning mobile body according to claim 1, wherein at least the expansion and contraction section includes the cleaning body.   The movable body for cleaning according to claim 1 or 2, wherein the stretchable portion is a radially stretchable portion that is brought into the second state by extending at least in the radial direction from the first state.   The radial expansion / contraction part is a reduced diameter state as the first state, wherein the diaphragm part is deformed so that the diameter of the diaphragm part is reduced by discharging fluid from a pressurizing chamber in contact with an inner peripheral surface of the cylindrical diaphragm part. The expansion / contraction diameter part is operable so as to operate between the expanded state as the second state, wherein the diaphragm part is deformed so as to expand in diameter by supplying the fluid to the pressurizing chamber. The moving body for cleaning according to 3.   The expanded / reduced diameter portion is a reduced diameter / axially extended state as the first state in which the diaphragm portion is reduced in diameter by the discharge of the fluid from the pressurizing chamber and is deformed to extend in the axial direction. Between the expanded state and the axially contracted state as the second state, wherein the diaphragm portion is expanded in diameter and contracted in the axial direction by supplying the fluid to the pressurizing chamber. The movable body for cleaning according to claim 4, wherein the movable body is an expandable / reducible diameter / axially expandable / contractable portion. The expansion / contraction diameter part has a base material part arranged on the outer side in the radial direction of the diaphragm part,
The said cleaning body is the moving body for cleaning of Claim 4 or 5 arrange | positioned at the said base material part.   The mobile body for cleaning according to any one of claims 1 to 6, wherein the cleaning body is provided at least in a portion other than the stretchable portion.   The cleaning moving body according to claim 7, wherein the cleaning body provided in a portion other than the stretchable portion is arranged to be operated by an operation of the stretchable portion.

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