Cleaner and cleaning device including cleaner

Abstract

To provide a cleaning device in which a flow passage is hardly clogged and which can clean an inner wall of a pipe by effectively applying cleaning liquid to the inner wall of the pipe regardless of diameter of the pipe.SOLUTION: The present invention for solving the above problem is a washer 1 including an annular main body 11 having an inner wall 112 surrounding a central axis A, and an introduction port 12 for introducing liquid, where the main body 11 has a flow path 111 through which the liquid flows along an annular shape, and an injection hole 113 penetrating the inner wall 112 from the flow path 111, and the injection hole 113 is a long hole in which a first axis B indicating an injection direction of the liquid is provided at a position twisted with respect to the central axis A.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cleaning device for cleaning the inner walls of pipes and the like, and a cleaning device constituting the cleaning device. [Background technology]

[0002] Tanks used for manufacturing and storing chemicals are equipped with nozzles or piping members into which stirring rods, chemical supply pipes, etc. can be inserted. For this purpose, shower nozzles and shower balls have been developed to clean the inner walls of the tanks, while annular cleaning devices that are attached to the piping have been developed to clean the piping. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6542561 Summary of the Invention [Problem to be solved by the invention]

[0004] The cleaning device described in Patent Document 1 is directly connected to a pipe and sprays a cleaning liquid into the inside of the pipe from a nozzle, thereby improving the efficiency of cleaning the pipe. However, if the diameter of the pipe is large, the distance from the nozzle to the inner wall of the pipe becomes long, reducing the cleaning efficiency, and if the nozzle is small, there is a problem that clogging occurs due to the washed-out dirt.

[0005] In view of the above problems, the present invention aims to provide a cleaning device that is less likely to clog flow paths and can effectively apply cleaning liquid to the inner walls of pipes to clean them, regardless of the diameter of the pipes. [Means for solving the problem]

[0006] The present invention, which solves the above-mentioned problems, provides a cleaning device comprising an annular main body having an inner wall surrounding a central axis, and an inlet for introducing a liquid, the main body having a flow path for conducting liquid along the annular shape, and an injection hole penetrating the inner wall from the flow path, the injection hole being an elongated hole whose axis, which faces the injection direction of the liquid, is arranged in a twisted position with respect to the central axis. With this configuration, the flow path is less likely to become clogged, and the cleaning liquid can be applied effectively to the inner wall of the pipe to clean it, regardless of the size of the diameter of the pipe.

[0007] In a preferred embodiment of the present invention, the injection hole is provided such that the axis intersects with a plane perpendicular to the central axis. With this configuration, even if the pipe extends vertically upward from the inlet, the inside of the pipe can be cleaned.

[0008] In a preferred embodiment of the present invention, the injection hole is provided such that the major axis of the opening on the inner wall side intersects the plane obliquely. This configuration makes it easier for the sprayed cleaning liquid to hit the inner wall of the pipe evenly.

[0009] In a preferred embodiment of the present invention, the main body further has an auxiliary injection hole penetrating the inner wall from the flow path, and the auxiliary injection hole is provided such that an axis indicating the injection direction of the liquid intersects with the central axis. With this configuration, the member that passes through the ring of the cleaner can be cleaned together with the inner wall of the pipe.

[0010] The present invention, which solves the above problem, is a cleaning device including any one of the cleaning devices described above. With this configuration, the structure can be simplified so that each part is fixed, and a cleaning device that can be easily maintained can be constructed.

[0011] In a preferred embodiment of the present invention, the cleaning device includes a pair of frames for sandwiching the cleaner from the direction of the central axis. Such a configuration makes it possible to withstand the supply pressure of the cleaning liquid.

[0012] In a preferred embodiment of the present invention, the frame has a connection portion for connection to a liquid supply pipe communicating with the inlet. With this configuration, the frame can be easily removed and replaced. Effect of the Invention

[0013] The present invention, which solves the above problems, provides a cleaning device in which the flow path is less likely to become clogged and which can effectively apply cleaning liquid to the inner wall of a pipe to clean it, regardless of the size of the pipe's diameter. [Brief description of the drawings]

[0014] [Figure 1] 1A and 1B are a plan view and a left side view of a cleaning device according to a first embodiment of the present invention. [Diagram 2] 1 is a cross-sectional view in a thickness direction of a cleaning device according to a first embodiment of the present invention. [Diagram 3] 1 is a perspective view of a cleaner and an enlarged view of an injection hole according to a first embodiment of the present invention; FIG. [Figure 4] 1 shows a radial section and assembly of a cleaning device according to a first embodiment of the invention; [Diagram 5] 1 is a schematic diagram showing a state in which a cleaning device according to a first embodiment of the present invention is in use; [Figure 6] 5A to 5C are cross-sectional views from two directions showing a modified example of the cleaning device according to the first embodiment of the present invention. [Figure 7] 5A and 5B are a plan view and a left side view of a cleaning device according to a second embodiment of the present invention. [Figure 8] FIG. 11 is a cross-sectional view in a thickness direction of a cleaning device according to a second embodiment of the present invention. [Figure 9] FIG. 11 is a schematic diagram showing a state in which a cleaning device according to a second embodiment of the present invention is in use. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, a cleaning device 1 and a cleaning apparatus X according to each embodiment of the present invention will be described with reference to the drawings. The description will be made in detail in the order of the configuration of the embodiment, the method of implementation, and other examples. It should be noted that the following embodiments are merely examples of the present invention, and the present invention is not limited to the following embodiments.

[0016] First Embodiment The cleaning device X according to this embodiment includes a cleaning device 1 configured to fit the shape of the pipe P to be cleaned, and a frame 2. The cleaning device 1 and frame 2 are configured in an annular shape as shown in Figures 1, 2, and 3, and the straight line at the center of the ring is referred to as the central axis A, and the direction parallel to the central axis A of the cleaning device X and the cleaning device 1 is referred to as the thickness direction. Furthermore, as shown in Figure 5, the cleaning device X is installed and used so as to become part of the pipe P.

[0017] In the drawings of the cleaning device X according to this embodiment, FIG. 1(a) is a left side view of the cleaning device X, FIG. 1(b) is a plan view of the cleaning device X, FIG. 2 is a cross-sectional view of the cleaning device X cut at the middle part in the thickness direction, FIG. 3(a) is a perspective view of the cleaning device 1, FIG. 3(b) is an enlarged view of an injection hole 113 (described later) of the cleaning device 1, FIG. 4(a) is a cross-sectional view of the cleaning device X taken along Y-A-Y' in FIG. 1(b), FIG. 4(b) is a cross-sectional view of the cleaning device X taken along Z-A-Y' in FIG. 1(b), FIG. 4(c) is a diagram showing the assembly configuration of the cleaning device X using schematic cross-sectional views of the cleaning device 1 and the frame 2, and FIG. 5 is a schematic view showing the cleaning device X in use. FIG. 6 shows a modified example of the cleaning device X, in which FIG. 6(a) is a cross-sectional view in the thickness direction following FIG. 2, and FIG. 6(b) is a cross-sectional view along U-A-U' in FIG. 6(a) following FIG. 4(a) (however, the thickness direction is not cut and the entire view is shown).

[0018] As shown in Fig. 1, the cleaner 1 is a member having an annular main body 11 and an inlet 12 protruding radially outward from the main body 11, through which a liquid for cleaning the pipe P, i.e., a cleaning liquid, flows. The material of the cleaner 1 is preferably a resin, particularly a fluorinated resin such as PTFE, to prevent deterioration due to the cleaning liquid. With this configuration, various chemicals can be used as the cleaning liquid, and co-washing is also possible. The material of the cleaner 1 may be PTFE containing a filler, such as carbon-filled PTFE. This prevents static electricity generated when the cleaning liquid is sprayed from accumulating, and prevents ignition in the tank T caused by the static electricity.

[0019] The main body 11 is a member configured in an annular shape, and is provided with a flow path 111 for flowing a cleaning liquid along its shape. In the embodiment shown in Fig. 1, the main body 11 is formed in an annular shape with a rectangular cross section, but depending on the shape of the pipe P to be cleaned, it may be configured in other shapes, such as a polygonal annular shape or a semicircular cross section.

[0020] As shown in Fig. 1, the flow path 111 is a passage for the cleaning liquid that is provided so as to circle around the central axis A along the shape of the main body 11. As shown in the cross section in Fig. 4, the flow path 111 is formed by digging a stepped groove from one direction of the central axis A and welding a member with a T-shaped cross section to the groove. With this configuration, the cleaning liquid can be made to flow around the pipe P to be cleaned.

[0021] The main body 11 has an inner wall 112 which is a circumferential surface surrounding the central axis A and facing the direction of the central axis A, and further has an injection hole 113 penetrating from the flow path 111 toward the inner wall 112. With this configuration, the cleaning liquid is injected toward the inside of the main body 11, i.e., toward the inside of the pipe P to be cleaned.

[0022] The main body 11 is configured to have a step only in a portion along the inner wall 112 in the radial direction of the ring, expanding the thickness direction. With this configuration, more reliable alignment can be achieved when combined with the frame 2, as shown in Fig. 4. Also, as shown in Fig. 5, all parts that come into contact with chemicals and cleaning fluids are made of the members of the main body 11, so the state of the cleaning device X can be maintained for a long time.

[0023] It is preferable that both end portions of the inner wall 112 that are connected to the pipe P are flush with the inner wall surface of the pipe P, leaving the corners. With such a configuration, dirt washed away during cleaning is less likely to adhere to the inner wall 112, and the possibility of clogging the injection hole 113 can be reduced.

[0024] The injection hole 113 is a hole penetrating the inner wall 112 from the flow path 111, and the cleaning liquid is injected from here. The injection hole 113 according to the present invention is a long hole or a slit whose cross section perpendicular to the direction in which the cleaning liquid is injected has a long direction and a short direction. With this configuration, even if dirt washed away by cleaning adheres to the injection hole 113, the entire opening is unlikely to become clogged, and cleaning of the pipe P can be continued without reducing the cleaning efficiency. Hereinafter, the axis indicating the injection direction of the cleaning liquid from the injection hole 113 will be referred to as a first axis B.

[0025] When the injection hole 113 is a slit having a rectangular cross section, its longitudinal dimension is preferably 5.0 mm or more and 20 mm or less, more preferably 7.0 mm or more and 15 mm or less, and even more preferably about 10 mm. Also, the lateral dimension of the injection hole 113 is preferably 0.5 mm or more and 2.5 mm or less, and more preferably 0.7 mm or more and 2 mm or less. Although this dimension depends on the performance of the processing equipment in the actual manufacturing process, it is preferable that the width is about the above-mentioned in order to keep the pressure of the sprayed cleaning liquid at a constant level or higher. With this configuration, even if the spray hole 113 has a large flow passage cross section unlike a small hole, the cleaning liquid can be applied to the inner wall surface of the pipe P with sufficient pressure to clean it.

[0026] As shown in Figures 1 and 2, the first axis B of the injection hole 113 is arranged in a direction rotated by an angle K with respect to a straight line from the center of the opening along the inner wall 112 toward the central axis A, i.e., the radial direction of the main body 11. As a result, the first axis B is arranged in a twisted position with respect to the central axis A. The angle of the angle K is preferably 20 degrees or more and 60 degrees or less, more preferably 25 degrees or more and 55 degrees or less, and further preferably 30 degrees or more and 50 degrees or less. Note that Figures 2 and 3 show a form in which the angle K is 40 degrees as a representative value.

[0027] By adopting such a configuration that introduces the deflection angle K, even if the diameter of the pipe P or the diameter of the inner wall 112 is large, the horizontal distance over which the cleaning liquid sprayed from the spray hole 113 hits the inner wall surface of the pipe P can be shortened, preventing the cleaning liquid from falling due to gravity and enabling cleaning from a higher position.

[0028] As shown in Fig. 4, the first axis B is inclined at a first elevation angle L from a plane perpendicular to the central axis A. In other words, the first axis B intersects with a plane perpendicular to the central axis A. The first elevation angle L is preferably 15 degrees or more and 30 degrees or less, and more preferably 20 degrees or more and 25 degrees or less. Note that Figs. 2 and 3 show a form in which the first elevation angle L is 23 degrees as a representative value.

[0029] By adopting the configuration in which the first elevation angle L is introduced in this manner, it is possible to clean only a certain range of the pipe P vertically above the cleaning device 1 (cleaning device X).

[0030] As shown in Fig. 3, the injection hole 113 is provided so that a cross section perpendicular to the first axis B is inclined. In particular, the opening on the inner wall 112 side is provided so as to be inclined by a major axis deflection angle M with respect to a plane perpendicular to the central axis A. In other words, the injection hole 113 is provided so that a major axis indicating a longitudinal direction at the opening along the inner wall 112 obliquely intersects with a plane perpendicular to the central axis A. The angle of the major axis deflection angle M is preferably 10 degrees or more and 30 degrees or less, and more preferably 15 degrees or more and 25 degrees or less. Note that Fig. 1 shows a form in which the major axis deflection angle M is 20 degrees as a representative value.

[0031] By adopting such a configuration in which the major axis deflection angle M is introduced, it is possible to prevent the entire injection hole 113 from becoming clogged due to dirt being easily concentrated at one end of the opening.

[0032] 1 and 3, the inclination of the injection hole 113 due to the major axis deflection angle M is preferably configured so that the part closer to the central axis A is located higher than the first axis B. Since the injection hole 113 produces a difference in the horizontal distance from the injection position to the inner wall surface of the pipe P on which the cleaning liquid hits, depending on the longitudinal direction of the opening, this configuration makes it possible to hit the cleaning liquid on the inner wall surface of the pipe P at the same height as much as possible even under the influence of gravity. In addition, since the direction in which the cleaning liquid hits the inner wall surface of the pipe P and flows down is parallel to the major axis of the injection hole 113, the flow of the cleaning liquid is not impeded and the injection hole 113 can be prevented from being clogged.

[0033] With the above-described configuration of the injection holes 113, the injected cleaning liquid hits the inner wall surface of the pipe P in an oblique direction including a vertically upward component with a certain width, flows up the inner wall surface of the pipe P to a certain height, and then falls in a spiral shape along the wall surface of the pipe P. If the injection holes 113 are provided at multiple locations, it is expected that the entire circumference of the inner wall surface of the pipe P will be washed away by the spiral flow of the cleaning liquid.

[0034] In addition to the injection hole 113, the main body 11 has an auxiliary injection hole 114 that penetrates from the flow path 111 to the inner wall 112. Like the injection hole 113, the auxiliary injection hole 114 is also a hole from which the cleaning liquid is injected, but as shown in Fig. 3, it is a small hole rather than a long hole. If the axis indicating the injection direction of the cleaning liquid is referred to as the second axis C, then the second axis C intersects with the central axis A as shown in Figs. 1 and 2. With this configuration, members positioned on the central axis of the pipe P, such as a stirring rod inserted into the pipe P, can also be cleaned together with the inner wall surface of the pipe P.

[0035] As shown in Fig. 4, the second axis C is inclined at a second elevation angle N from a plane perpendicular to the central axis A. In other words, the second axis C intersects with a plane perpendicular to the central axis A. The second elevation angle N is preferably 20 degrees or more and 60 degrees or less, more preferably 25 degrees or more and 55 degrees or less, and further preferably 30 degrees or more and 50 degrees or less. Note that Fig. 2 shows a form in which the second elevation angle N is 40 degrees as a representative value.

[0036] By adopting the second elevation angle N in this manner, it is possible to clean a member located vertically above the cleaner 1 (cleaning device X) in the same manner as the injection holes 113.

[0037] It is preferable that the injection holes 113 and the auxiliary injection holes 114 are provided in a plurality at equal intervals at a certain angle. As an example, the drawings show six injection holes 113 and six auxiliary injection holes 114 each provided at 60 degree intervals, and the injection holes 113 and the auxiliary injection holes 114 are alternately arranged at 30 degree intervals. The number of injection holes 113 and the auxiliary injection holes 114 can be changed depending on the inner diameter of the pipe P in which the cleaning device X is installed, and the number of injection holes 113 and the number of auxiliary injection holes 114 may be different.

[0038] The inlet 12 is a tube that protrudes radially outward from the main body 11, is provided in communication with the flow path 111, and introduces the cleaning liquid into the main body 11. The inside near the tip of the inlet 12 is provided with a step or taper, allowing a hose or the like for feeding the cleaning liquid to be connected.

[0039] 4, the frame 2 is a pair of members consisting of a first frame 21 and a second frame 22, which sandwich the cleaner 1 from both sides in the direction of the central axis A to form the cleaning device X. The first frame 21 and the second frame 22 are annular members with a portion hollowed out to match the shape of the cleaner 1, and are assembled to fit snugly with the cleaner 1. This configuration compensates for the lack of strength that would be required if the cleaner 1 were made of resin.

[0040] The first frame 21 and the second frame 22 are fixed by bolts or the like in a direction parallel to the central axis A. At this time, the bolts are preferably fastened vertically downward when attached to the piping P, and more preferably, both the first frame 21 and the second frame 22 are provided with female threads. With this configuration, the bolts are less likely to loosen, allowing the cleaning device X to be used safely for a long time, and the cleaning device X can also be used safely in a first-class pressure vessel (one-pressure tank) or the like whose inside becomes highly pressurized. Furthermore, the method of fixing the first frame 21 and the second frame 22 is not limited to bolts, and other configurations may be used as long as the connection between the two is detachable.

[0041] The cleaning device X may have the following configurations. However, what is shown below is an example of this embodiment, and the presence or absence of each configuration can be determined independently unless a subordinate relationship is particularly specified.

[0042] <Example of change> As shown in Fig. 6(a) and Fig. 6(b), the main body 11 has an auxiliary injection hole 115. The auxiliary injection hole 115 is a small hole penetrating from the flow path 111 to the inner wall 112, similar to the injection hole 113 and the auxiliary injection hole 114, and injects the cleaning liquid. The auxiliary injection hole 115 is provided at an angle of a second deflection angle R, which is the same rotational direction as the deflection angle K around the central axis A, from the direction toward the central axis A. Furthermore, a third axis D, which indicates the injection direction of the cleaning liquid, is provided at an angle of depression S from a plane perpendicular to the central axis A. The value of the depression angle S is preferably 15 degrees or more and 45 degrees or less, and more preferably 20 degrees or more and 40 degrees or less. With this configuration, even if the flow of the cleaning liquid sprayed from the spray hole 113 weakens as it flows down the inner wall surface of the pipe P, the jet of cleaning liquid from the auxiliary spray hole 115 can re-accelerate the flow, thereby improving the cleaning efficiency.

[0043] In addition to the above, the auxiliary injection hole 115 discharges excess liquid accumulated inside the cleaner 1, thereby preventing the pressure of the cleaning liquid in the flow path 111 from increasing too much and maintaining an appropriate flow rate of the cleaning liquid. The number of drainage holes is determined according to the flow rate of the cleaning liquid, and when there are two or more drainage holes, it is preferable that they are provided at positions that are rotationally symmetrical about the central axis A. With such a configuration, the reaction force caused by the drainage can be evenly distributed.

[0044] Hereinafter, a method for carrying out the present invention will be described in detail with reference to the drawings. Note that the method for carrying out the present invention will be described as an example, and the method for carrying out the present invention is not limited to this example, and the order of the steps may be changed.

[0045] <Method of Implementation> As shown in FIG. 5, a user installs the cleaning device X by inserting it into a part of the pipe P, and connects a hose for feeding the cleaning liquid to the inlet 12.

[0046] During cleaning, the user feeds a predetermined cleaning liquid, such as pure water or a co-washing chemical, into the cleaning device X. At this time, the flow rate of the cleaning liquid is adjusted so that the cleaning liquid sprayed from the spray hole 113 appropriately hits the inner wall surface of the pipe P.

[0047] When replacing the cleaning device X, the user removes it by pulling it out from the piping P. When replacing the frame body 2, the user removes the bolts that secure the first frame body 21 and the second frame body 22 to remove the frame body 2 from the cleaning device 1, and then covers the cleaning device 1 with a new frame body 2 while sandwiching it therebetween, and then fastens the bolts again.

[0048] Hereinafter, a cleaning device 1 and a cleaning apparatus X according to a second embodiment of the present invention will be described with reference to the drawings. Note that the same components as those in the first embodiment will be designated by the same reference numerals and will not be described.

[0049] Second Embodiment The cleaning device X according to this embodiment includes a cleaner 1 configured to fit the shape of the pipe P to be cleaned, and a frame 2, and further includes a liquid supply pipe 3 for supplying a cleaning liquid and a flange 4 for fixing the tip portion of the liquid supply pipe 3.

[0050] In the drawings of the cleaning device X according to this embodiment, FIG. 7(a) is a plan view of the cleaning device X, FIG. 7(b) is a left side view of the cleaning device X, FIG. 8 is a cross-sectional view of the cleaning unit 1 and the frame body 2 cut at a middle part in the thickness direction, and FIG. 9 is a schematic diagram showing a state in which the cleaning device X is used, using a cross-sectional view of the cleaning device X taken along W-A-W' in FIG. 7.

[0051] As shown in FIGS. 7(a), 8 and 9, the cleaner 1 is a member having an annular main body 11 and an inlet 12 protruding from the main body 11 outward in the radial direction.

[0052] 8, the inlet 12 has a step near the tip thereof to which the liquid supply tube 3 can be connected. In this case, it is preferable that the inner wall surface of the inlet 12 and the inner wall surface of the liquid supply tube 3 are flush with each other.

[0053] As shown in Figures 8 and 9, the liquid supply pipe 3 is a pipe with a multi-layer structure with an outer wall and an inner wall, and the inner wall is preferably made of the same material as the cleaning device 1. The outer wall is also preferably made of a non-flammable or flame-retardant material such as metal. This allows the cleaning liquid to be sent to the cleaning device X even when the chemicals used inside the piping P are highly flammable / explosive and general hoses or pipes cannot be used from a safety standpoint.

[0054] The frame 2 and the liquid supply tube 3 have a connection part Q that can fixedly connect them to each other. The connection part Q is a locking part (which may be a mating part) that locks and connects the frame 2 and the liquid supply tube 3 to each other, and is connected together when the first frame 21 and the second frame 22 clamp the cleaning device 1. With this configuration, the frame 2 and the liquid supply tube 3 can be connected without welding, and only the frame 2 can be easily removed and replaced. Furthermore, even if a foreign object gets into the cleaning device X, each part can be quickly disassembled, making maintenance easy.

[0055] As shown in Figures 7(a) and 7(b), flange 4 is a flat member provided at the tip of liquid supply tube 3, and fixedly connects liquid supply tube 3 to a pipe extending from a supply source of the cleaning liquid.

[0056] Hereinafter, a method for carrying out the present invention will be described in detail with reference to the drawings. The method for carrying out the present invention will be described in detail with reference to the drawings. The method for carrying out the present invention will be described as an example, and the method for carrying out the present invention is not limited to this example, and the order of the steps may be changed. However, the description of the same contents as those in the first embodiment will be omitted.

[0057] <Method of implementation> As shown in Fig. 9, the user installs the cleaner 1 by inserting it into a part of the piping P, and connects a pipe for supplying the cleaning liquid to the liquid supply tube 3 via the flange 4. At this time, the flange 4 is connected to a non-flammable pipe, or to a pipe hole provided in the wall of the room in which the piping P is installed. The connection is made using a method that prevents the cleaning liquid from leaking out, such as bolting and sealing. [Explanation of symbols]

[0058] X Cleaning Equipment 1 Cleaning machine 11 Main body 111 Flow Path 112 Inner wall 113 Injection hole 114 Sub injection hole 115 Auxiliary injection hole 12 Introduction 2 frame 21 First frame 22 Second Frame 3. Liquid delivery tube 4 Flanges A center axis B First axis C Second axis D Third axis K declination L first elevation angle M major axis declination N Second elevation angle P piping Q Connection R Second declination angle S depression angle

Claims

1. A cleaning device comprising an annular body having an inner wall surrounding a central axis and an inlet for introducing a liquid, The main body portion has a flow path that conducts liquid along the annular shape, and an injection hole that penetrates the inner wall from the flow path, A cleaning device, wherein the injection hole is a long hole whose axis, which faces the injection direction of the liquid, is disposed at a position twisted with respect to the central axis.

2. The injection hole is provided such that the axis intersects with a plane perpendicular to the central axis. The cleaner according to claim 1 .

3. The injection hole is provided such that a major axis of the opening on the inner wall side is in a direction that obliquely intersects with the plane. The cleaner according to claim 2 .

4. The main body further has a sub-injection hole penetrating the inner wall from the flow path, The auxiliary injection hole is provided such that an axis indicating the injection direction of the liquid intersects with the central axis. The cleaner according to claim 1 .

5. A cleaning device comprising the cleaner according to any one of claims 1 to 4.

6. The cleaning device includes a pair of frames that sandwich the cleaning device from the direction of the central axis.

6. The cleaning device according to claim 5.

7. The frame has a connection portion that is connected to a liquid supply pipe that communicates with the inlet.

7. The cleaning device according to claim 6.

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