CN111716180A

CN111716180A - Wall cleaning equipment for building

Info

Publication number: CN111716180A
Application number: CN202010560653.0A
Authority: CN
Inventors: 许伟虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-09-29

Abstract

The invention discloses wall cleaning equipment for buildings, which relates to the technical field of wall cleaning equipment, and particularly relates to a handle and a material receiving mechanism, wherein the top of the handle is connected with a sectional shell, one end of the sectional shell is connected with a polishing mechanism, a micro motor is arranged in the sectional shell, one end of the micro motor is connected with a rotating shaft, the outer end of the rotating shaft penetrates through the sectional shell and is simultaneously connected with a disc, the outer surface of the disc is wrapped with water-absorbing sponge, the side surface of the water-absorbing sponge is connected with sleeving cloth, the tail end of the sleeving cloth is provided with an elastic cord, and the material receiving mechanism is connected to the bottom end of the. This wall cleaning equipment for building, abrasive paper of polishing can polish stubborn spot, and the sponge cleaning solution that absorbs water cleans the wall spot, only needs to grip the handle and rotates and can adjust the orientation of abrasive paper of polishing and the sponge that absorbs water to be favorable to cleaing away to different kinds of spots, need not frequent change burnisher, be favorable to improving cleaning efficiency.

Description

Wall cleaning equipment for building

Technical Field

The invention relates to the technical field of wall surface cleaning equipment, in particular to wall surface cleaning equipment for buildings.

Background

Indoor wall often can be because of the spot appears in various reasons at the wall, and these spots can seriously influence the wall beautifully spent, if do not clear up for a long time and more can make the spot spread, thereby and the spot exists for a long time and can produce a large amount of bacteriums and influence people's healthy, to the best processing mode of wall spot, keep indoor health at present to the wall, and keep the frequency of clearing up to the wall, thereby prevent that the spot from appearing spreading.

Present wall clearance is mostly that domestic appliances such as manual hand-held abrasive paper, brush or rag are polished, are cleaned wall spot department, however the not high powder of polishing of the cleaning efficiency of this mode, cleaning production also can drop the adhesion on furniture surface, need carry out the secondary and clean to clearance personnel's work burden has been increased.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a wall cleaning device for buildings, which solves the problems that most of the wall cleaning in the background art is to manually hold household appliances such as sand paper, a brush or a rag and the like to polish and clean wall stains, but the cleaning efficiency is low, and meanwhile, powder generated by polishing and cleaning also falls off and adheres to the surface of furniture and needs to be cleaned for the second time, so that the workload of cleaning personnel is increased.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a wall cleaning equipment for building, includes handle and receiving agencies, the handle top is connected with the branch shell, and branch shell one end is connected with grinding machanism, branch shell inside arrangement has micro motor, and micro motor one end is connected with the pivot, the pivot outer end is connected with the disc when running through the branch shell, and disc surface parcel has the sponge that absorbs water, the sponge side that absorbs water is connected with the cover and connects cloth, and cup joints the cloth end and be provided with the elastic cord, receiving agencies connects in the handle bottom.

Optionally, grinding machanism includes bottom plate, protrusion board, the abrasive paper of polishing, jack, inserts post and fixed frame, and bottom plate fixed surface has the protrusion board, protrusion board surface is provided with the abrasive paper of polishing, and protrusion board surface all has seted up the jack all around with the abrasive paper surface of polishing, jack internal connection has the post of inserting, and inserts the post top and be fixed with fixed frame.

Optionally, the inner side surface of the polishing sand paper is attached to the outer surface of the protruding plate, the size of the outer opening of the polishing sand paper is larger than that of the outer opening of the protruding plate, and the polishing sand paper forms a convex structure through the protruding plate.

Optionally, the fixed frame passes through the jack, inserts and constitutes the block structure between post and the bottom plate, and polishes sand paper edge outside surface and the laminating of fixed frame medial surface mutually, and the sand paper of polishing runs through inside the fixed frame moreover.

Optionally, be fixed connection between micro motor and the branch shell, and constitute rotating-structure between disc, the sponge that absorbs water through pivot and the micro motor, the sponge that absorbs water is flexible structure moreover, disc surface is the arc surface form, and the disc surface laminates with the sponge internal surface that absorbs water mutually.

Optionally, the cloth that cup joints all is elastic construction with the elastic cord, and cup joints cloth internal surface and laminating mutually with disc, pivot surface, and the sponge that absorbs water constitutes half surrounding structure through between cloth, elastic cord and the pivot of cup jointing moreover.

Optionally, the receiving mechanism comprises a damping rotating shaft, a rotating ring, an outer pipe, a spring, an inner rod, a receiving box and flexible cotton, the bottom of the damping rotating shaft is connected with the rotating ring, the outer wall of the rotating ring is fixed with the outer pipe, the spring is arranged inside the outer pipe, one end of the spring is connected with the inner rod, the outer end of the inner rod is fixed with the receiving box, and the outer side face of the receiving box is provided with the flexible cotton.

Optionally, the material collecting box, the outer pipe and the inner rod form a rotating structure through the rotating ring and the damping rotating shaft, the material collecting box and the inner rod form a telescopic structure through the spring and the outer pipe, and the material collecting box and the flexible cotton are connected in an adhesion mode.

Optionally, the side surface of the inner wall of the material receiving box is inclined, the bottom of the inner wall of the material receiving box is arc-shaped, a welding integrated structure is formed between the material receiving box and the inner rod, the length dimension of the material receiving box is larger than the outer opening dimension of the water absorption sponge, and the length dimension of the material receiving box is larger than the outer opening dimension of the fixed frame.

The invention provides a wall surface cleaning device for a building, which has the following beneficial effects:

1. this wall cleaning equipment for building, abrasive paper of polishing can polish stubborn spot, and the sponge cleaning solution that absorbs water cleans the wall spot, only needs to grip the handle and rotates and can adjust the orientation of abrasive paper of polishing and the sponge that absorbs water to be favorable to cleaing away to different kinds of spots, need not frequent change burnisher, be favorable to improving cleaning efficiency.

2. This wall cleaning equipment for building, it is fixed that abrasive paper that polishes receives bottom plate and fixed frame's centre gripping, can prevent that abrasive paper that polishes from taking place to drop not hard up, and the abrasive paper of polishing is "protruding" style of calligraphy protrusion in the fixed frame surface through the protrusion board, should set up and avoid fixed frame to take place the friction with the wall when polishing the operation when carrying out the centre gripping to abrasive paper of polishing to prevent that the wall from receiving the scratch.

3. This wall cleaning equipment for building, the abrasive paper of polishing arrange bottom plate and protrusion board surface in, fixed frame pushes down and can accomplish the centre gripping equipment to the abrasive paper of polishing in inserting the jack on bottom plate surface through the post of inserting of its bottom this moment, and the connected mode between fixed frame and the bottom plate also makes things convenient for the later stage to dismantle, only needs to stimulate fixed frame hard to the outside and can take off it to make things convenient for the later stage to change abrasive paper of polishing.

4. This wall cleaning equipment for building, the sponge that absorbs water is through cup jointing cloth, the elastic cord cup joints in disc and pivot surface, make things convenient for the later stage to dismantle change and wash, and the sponge surface that absorbs water is the arcwall form through the disc, grip the size that handle control pressure was said through people and can control the area of contact between sponge and the wall that absorbs water, this be provided with does benefit to and cleans the spot of equidimension area not, avoid the detergent extravagant to appear, thereby it makes the sponge that absorbs water to drive the disc and pivot by micro motor and rotate, thereby it cleans the wall to need not the manual back and forth slip of people, be favorable to reducing people's work burden.

5. The wall cleaning equipment for the building has the advantages that the receiving box is arranged below the polishing mechanism, so that stain powder generated in the polishing operation can be collected, the stain powder is prevented from being adhered to furniture, thereby avoiding secondary cleaning operation, the material collecting box can rotate through the damping rotating shaft, thereby collecting the stains falling from the wall surface cleaned by the water-absorbing sponge, and the material collecting box can stretch through the spring in the outer pipe, therefore, when the material receiving box is used, the material receiving box and the polishing abrasive paper or the water absorption sponge simultaneously prop against the wall surface, and the water absorption sponge is always kept to be attached to the wall surface through the spring while the contact area of the water absorption sponge and the wall surface is adjusted, this be provided with do benefit to and avoid having the spot powder to omit unable entering inside the material collecting box, the material collecting box lateral surface bonds moreover has flexible cotton, can prevent through flexible cotton that the material collecting box from scraping the wall when moving attaching to the wall.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic perspective view of a sanding paper according to the present invention;

FIG. 3 is a schematic perspective view of a disc according to the present invention;

FIG. 4 is a schematic cross-sectional view of a base plate according to the present invention;

FIG. 5 is a schematic view of the internal structure of the outer tube of the present invention.

In the figure: 1. a grip; 2. item separation shell; 3. a polishing mechanism; 301. a base plate; 302. a protruding plate; 303. sanding sand paper; 304. a jack; 305. inserting a column; 306. a fixed frame; 4. a micro motor; 5. a rotating shaft; 6. a disc; 7. a water-absorbing sponge; 8. sleeving and connecting cloth; 9. elastic bands; 10. a material receiving mechanism; 1001. a damping rotating shaft; 1002. rotating the ring; 1003. an outer tube; 1004. a spring; 1005. an inner rod; 1006. a material receiving box; 1007. flexible cotton.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides a technical solution: a wall cleaning device for buildings comprises a handle 1 and a receiving mechanism 10, wherein the top of the handle 1 is connected with a sectional shell 2, one end of the sectional shell 2 is connected with a polishing mechanism 3, the polishing mechanism 3 comprises a bottom plate 301, a convex plate 302, polishing sand paper 303, a jack 304, an insert column 305 and a fixed frame 306, the surface of the bottom plate 301 is fixed with the convex plate 302, the surface of the convex plate 302 is provided with the polishing sand paper 303, the periphery of the surface of the convex plate 302 and the periphery of the surface of the polishing sand paper 303 are respectively provided with the jack 304, the insert column 305 is connected inside the jack 304, the top of the insert column 305 is fixed with the fixed frame 306, the inner side surface of the polishing sand paper 303 is attached to the outer surface of the convex plate 302, the size of an outer opening of the polishing sand paper 303 is larger than that of the convex plate 302, the polishing 303 forms a convex structure through the convex plate 302, the fixed frame 306 forms a clamping structure through, the outer surface of the edge of the polishing sand paper 303 is attached to the inner side surface of the fixed frame 306, the polishing sand paper 303 penetrates through the fixed frame 306, the polishing sand paper 303 is clamped and fixed by the bottom plate 301 and the fixed frame 306, the polishing sand paper 303 can be prevented from falling and loosening, the polishing sand paper 303 protrudes out of the outer surface of the fixed frame 306 in a convex shape through the protruding plate 302, the polishing sand paper 303 is clamped and prevented from rubbing the fixed frame 306 with the wall during polishing operation, so that the wall surface is prevented from being scratched, the polishing sand paper 303 is arranged on the surfaces of the bottom plate 301 and the protruding plate 302, the fixed frame 306 is pressed downwards and inserted into the insertion holes 304 on the surface of the bottom plate 301 through the insertion posts 305 at the bottom of the fixed frame 306, the clamping and assembling of the polishing sand paper 303 can be completed, the connection mode between the fixed frame 306 and the bottom plate 301 is convenient for later-stage disassembly, and the fixed frame 306, therefore, the grinding abrasive paper 303 is convenient to replace at the later stage;

a micro motor 4 is arranged in the item dividing shell 2, one end of the micro motor 4 is connected with a rotating shaft 5, the outer end of the rotating shaft 5 penetrates through the item dividing shell 2 and is connected with a disc 6, the outer surface of the disc 6 is wrapped with a water absorption sponge 7, the side surface of the water absorption sponge 7 is connected with a sleeving cloth 8, the tail end of the sleeving cloth 8 is provided with an elastic cord 9, the micro motor 4 is fixedly connected with the item dividing shell 2, the disc 6 and the water absorption sponge 7 form a rotating structure through the rotating shaft 5 and the micro motor 4, the water absorption sponge 7 is of a flexible structure, the outer surface of the disc 6 is of a cambered surface, the outer surface of the disc 6 is attached to the inner surface of the water absorption sponge 7, the sleeving cloth 8 and the elastic cord 9 are both of elastic structures, the inner surface of the sleeving cloth 8 is attached to the disc 6 and the outer surface of the rotating shaft 5, and the water absorption, the water absorption sponge 7 is sleeved on the surfaces of the disc 6 and the rotating shaft 5 through the sleeving cloth 8 and the elastic band 9, the sleeving cloth 8 and the elastic band 9 are both of elastic structures, so that the sleeving cloth 8 woven by elastic surfaces and the elastic band 9 are tightly attached to the surfaces of the disc 6 and the rotating shaft 5, the sleeving cloth 8 is prevented from being loosened, the later-period disassembly, replacement and cleaning are facilitated, the outer surface of the water absorption sponge 7 is arc-shaped through the disc 6, the contact area between the water absorption sponge 7 and the wall surface can be controlled by controlling the pressing force by holding the handle 1 by people, the arrangement is favorable for wiping stains with different areas, the waste of cleaning agents is avoided, the disc 6 and the rotating shaft 5 are driven by the micro motor 4, so that the water absorption sponge 7 rotates, the wall surface is not required to be wiped by people through manual sliding back and forth, and the work burden of people is reduced;

the receiving mechanism 10 is connected to the bottom end of the handle 1, the receiving mechanism 10 comprises a damping rotating shaft 1001, a rotating ring 1002, an outer tube 1003, a spring 1004, an inner rod 1005, a receiving box 1006 and flexible cotton 1007, the bottom of the damping rotating shaft 1001 is connected with the rotating ring 1002, the outer tube 1003 is fixed on the outer wall of the rotating ring 1002, the spring 1004 is arranged inside the outer tube 1003, one end of the spring 1004 is connected with the inner rod 1005, the receiving box 1006 is fixed at the outer end of the inner rod 1005, the flexible cotton 1007 is arranged on the outer side surface of the receiving box 1006, the outer tube 1003 and the inner rod 1005 form a rotating structure through the rotating ring 1002 and the damping rotating shaft 1001, the receiving box 1006 and the inner rod 1005 form a telescopic structure through the spring 1004 and the outer tube 1003, the connecting mode between the receiving box 1006 and the flexible cotton 1007 is bonding, the receiving box 1006 is arranged below the polishing mechanism 3, and can, therefore, secondary cleaning operation is avoided, the material collecting box 1006 can rotate through the damping rotating shaft 1001, dirt falling from the wall surface cleaned by the water-absorbing sponge 7 can be collected, the material collecting box 1006 stretches through the spring 1004 in the outer tube 1003, when the material collecting box 1006 is used, the material collecting box 1006 and the polishing sand paper 303 or the water-absorbing sponge 7 simultaneously abut against the wall surface, the water-absorbing sponge 7 is kept to be attached to the wall surface through the spring 1004 when the contact area of the water-absorbing sponge 7 and the wall surface is adjusted, the arrangement is favorable for preventing dirt powder from entering the material collecting box 1006, flexible cotton 1007 is bonded on the outer side surface of the material collecting box 1006, and the wall surface can be prevented from being scratched when the material collecting box 1006 moves along the wall surface through the flexible cotton 1007;

the inner wall side of the material receiving box 1006 is inclined, the inner wall bottom of the material receiving box 1006 is arc-shaped, and a welding integrated structure is formed between the material receiving box 1006 and the inner rod 1005, the length dimension of the material receiving box 1006 is larger than the outer opening dimension of the water absorbing sponge 7, the length dimension of the material receiving box 1006 is larger than the outer opening dimension of the fixed frame 306, the inner wall side of the material receiving box 1006 is inclined, powder impurities can slide to the inner wall bottom of the material receiving box 1006 conveniently, the inner wall bottom of the material receiving box 1006 is arc-shaped, powder impurities can be poured out in the later period conveniently, powder impurities are prevented from remaining, the length dimension of the material receiving box 1006 is larger than the outer opening dimension of the water absorbing sponge 7, the outer opening dimension of the material receiving box 1006, which is larger than the fixed frame 306, is favorable for preventing the powder impurities from.

In conclusion, when the building wall surface cleaning equipment is used, firstly, when stubborn stains on a wall surface need to be polished and eliminated, the polishing sand paper 303 is placed on the surfaces of the base plate 301 and the protruding plates 302, at the moment, the fixed frame 306 is pressed down and inserted into the insertion holes 304 on the surface of the base plate 301 through the insertion posts 305 at the bottom of the fixed frame 306, the clamping and assembling of the polishing sand paper 303 can be completed, the polishing sand paper 303 protrudes out of the outer surface of the fixed frame 306 in a convex shape through the protruding plates 302, the arrangement can clamp the polishing sand paper 303 and simultaneously prevent the fixed frame 306 from rubbing against the wall during polishing operation, so that the wall surface is prevented from being scratched, then, the rotating ring 1002 is manually rotated to enable the outer side surface of the collecting box 1006 to be consistent with the orientation of the polishing sand paper 303, then a person holds the grip 1 to enable the polishing sand paper 303 to be attached to a position, which needs to be polished, and the grip 1 is dragged back, the powder stains generated by polishing can fall into the material collecting box 1006, then when the wall stains need to be cleaned, the rotating ring 1002 is rotated to rotate through the damping rotating shaft 1001, the material collecting box 1006 is carried to rotate until the outer side surface of the material collecting box 1006 and the outer side surface of the water absorbing sponge 7 face the same direction, then the water absorbing sponge 7 absorbs cleaning liquid, then the water absorbing sponge 7 is sleeved on the surfaces of the disc 6 and the rotating shaft 5 through the sleeving cloth 8 and the elastic band 9, the sleeving cloth 8 and the elastic band 9 are both in elastic structures, so that the sleeving cloth 8 woven by the elastic surfaces and the elastic band 9 can be tightly attached to the surfaces of the disc 6 and the rotating shaft 5, the loosening of the sleeving cloth 8 is prevented, the later-stage disassembly and replacement and cleaning are convenient, the outer surface of the water absorbing sponge 7 is in an arc surface through the disc 6, the contact area between the water absorbing sponge 7 and the wall can be controlled by controlling the size of the pressing force, this be provided with and do benefit to and clean the spot of equidimension area not, avoid the sanitizer to appear extravagantly, and handle 1 is inside to be the cavity form, its inside arrangement has the battery, make micro motor 4 function through the battery, thereby drive disc 6 and pivot 5 and make the sponge 7 that absorbs water rotate, it cleans the wall to need not the manual back and forth slip of people, be favorable to reducing people's work burden, the sponge 7 that absorbs water at last is when adjusting with wall area of contact size, material collecting box 1006 keeps laminating mutually through spring 1004 always, this be provided with and be favorable to avoiding there being the spot powder to omit unable entering material collecting box 1006 inside, and material collecting box 1006 lateral surface bonds there is flexible cotton 1007, can prevent material collecting box 1006 wall scratch when pasting the wall removal through flexible cotton 1007.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a wall cleaning equipment for building, includes handle (1) and receiving agencies (10), its characterized in that: the handle (1) top is connected with itemizing shell (2), and itemizing shell (2) one end and being connected with grinding machanism (3), itemizing shell (2) inside arrangement has micro motor (4), and micro motor (4) one end is connected with pivot (5), be connected with disc (6) when pivot (5) outer end runs through itemizing shell (2), and disc (6) surface parcel has water absorption sponge (7), water absorption sponge (7) side is connected with cover and connects cloth (8), and the end of cover and connect cloth (8) is provided with elastic cord (9), receiving agencies (10) are connected in handle (1) bottom.

2. A wall surface cleaning apparatus for buildings as claimed in claim 1, wherein: grinding machanism (3) include bottom plate (301), protrusion board (302), sand paper (303), jack (304) of polishing, insert post (305) and fixed frame (306), and bottom plate (301) fixed surface has protrusion board (302), protrusion board (302) surface is provided with sand paper (303) of polishing, and protrusion board (302) surface all around with sand paper (303) surface of polishing all around jack (304) have been seted up, jack (304) internal connection has and inserts post (305), and inserts post (305) top and be fixed with fixed frame (306).

3. A wall surface cleaning apparatus for buildings as claimed in claim 2, wherein: the inner side surface of the polishing sand paper (303) is attached to the outer surface of the protruding plate (302), the size of an outer opening of the polishing sand paper (303) is larger than that of the outer opening of the protruding plate (302), and the polishing sand paper (303) forms a convex structure through the protruding plate (302).

4. A wall surface cleaning apparatus for buildings as claimed in claim 2, wherein: fixed frame (306) pass through jack (304), insert and constitute the block structure between post (305) and bottom plate (301), and polish sand paper (303) edge surface and fixed frame (306) medial surface and laminate mutually, polish sand paper (303) moreover and run through inside fixed frame (306).

5. A wall surface cleaning apparatus for buildings as claimed in claim 1, wherein: be fixed connection between micro motor (4) and branch item shell (2), and disc (6), sponge (7) absorb water constitute revolution mechanic between pivot (5) and micro motor (4), and sponge (7) absorb water is flexible structure moreover, disc (6) surface is the arcwall form, and disc (6) surface and sponge (7) internal surface that absorbs water laminate mutually.

6. A wall surface cleaning apparatus for buildings as claimed in claim 1, wherein: the cup jointing cloth (8) and the elastic band (9) are both elastic structures, the inner surface of the cup jointing cloth (8) is attached to the outer surfaces of the disc (6) and the rotating shaft (5), and the water absorption sponge (7) forms a semi-surrounding structure between the cup jointing cloth (8), the elastic band (9) and the rotating shaft (5).

7. A wall surface cleaning apparatus for buildings as claimed in claim 1, wherein: the material receiving mechanism (10) comprises a damping rotating shaft (1001), a rotating ring (1002), an outer tube (1003), a spring (1004), an inner rod (1005), a material receiving box (1006) and flexible cotton (1007), wherein the bottom of the damping rotating shaft (1001) is connected with the rotating ring (1002), the outer wall of the rotating ring (1002) is fixed with the outer tube (1003), the spring (1004) is arranged inside the outer tube (1003), one end of the spring (1004) is connected with the inner rod (1005), the outer end of the inner rod (1005) is fixed with the material receiving box (1006), and the outer side face of the material receiving box (1006) is provided with the flexible cotton (1007).

8. A wall surface cleaning apparatus for buildings as claimed in claim 7, wherein: the receiving box (1006), the outer tube (1003), the inner rod (1005) form a rotating structure through a rotating ring (1002) and a damping rotating shaft (1001), the receiving box (1006) and the inner rod (1005) form a telescopic structure through a spring (1004) and the outer tube (1003), and the receiving box (1006) and the flexible cotton (1007) are connected in an adhesion mode.

9. A wall surface cleaning apparatus for buildings as claimed in claims 1 to 8 wherein: the side surface of the inner wall of the material receiving box (1006) is inclined, the bottom of the inner wall of the material receiving box (1006) is arc-shaped, a welding integrated structure is formed between the material receiving box (1006) and the inner rod (1005), the length dimension of the material receiving box (1006) is larger than the outer opening dimension of the water absorption sponge (7), and the length dimension of the material receiving box (1006) is larger than the outer opening dimension of the fixed frame (306).