CN212078759U

CN212078759U - A cleaning device that is used for wall reentrant corner department wall skin

Info

Publication number: CN212078759U
Application number: CN202020583503.7U
Authority: CN
Inventors: 曾杰; 夏松林; 代宗玉; 黄超
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-04
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a cleaning device for wall skin at the internal corner of a wall, which comprises a base, wherein the top of the base is provided with a first driving mechanism, a first output shaft of the first driving mechanism is provided with a fixed block, the side wall of the fixed block is provided with a transverse plate, one end of the transverse plate is connected with the fixed block, the other end of the transverse plate is provided with a frame with a U-shaped structure, one side of the frame is provided with a second driving mechanism, a U-shaped groove of the frame is internally provided with a rotating roller, a second output shaft of the second driving mechanism is connected with the rotating roller, and the circumferential outer wall of the rotating roller; first blind holes are formed among the convex teeth of the rotating roller, second elastic pieces are arranged in the first blind holes, one ends of the second elastic pieces are connected with the inner bottoms of the first blind holes, movable rods are arranged at the other ends of the second elastic pieces, and cleaning balls are arranged at the tail ends of the movable rods, which are positioned at the outer ends of the first blind holes; the spherical surface of the cleaning ball is provided with a plurality of second blind holes, third elastic pieces are arranged in the second blind holes, and cleaning pieces are arranged on the third elastic pieces.

Description

A cleaning device that is used for wall reentrant corner department wall skin

Technical Field

The utility model relates to a construction technical field, concretely relates to a cleaning device that is used for wall reentrant corner department wall skin.

Background

Indoor decoration, especially home decoration, is a popular concept of life quality improvement, can be used as one of the major signs of people's happiness index improvement, is born in China at the end of the 20 th century 80 years, and decoration is also called decoration or decoration, which is realized in a certain area and range and comprises hydropower construction, walls, floors, landscapes and the like, and is a whole set of construction scheme and design scheme formed according to a certain design concept and aesthetic rules. Because the wall surface probably forms the wab of easily droing after weing, can influence the quality of fitment when carrying out the fitment operation, generally need clear up the wab on the wall, present mode utilizes manual work or machine to remove the skin, adopts the mode of artifical manual skin removal not only efficiency lower, and intensity of labour is great moreover, and current machine is when removing the skin to the wall, and the wab of wall and ceiling reentrant corner department is difficult for effective clearance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough among the prior art, aim at provides a cleaning device for wall reentrant corner department wall skin, utilizes the movable rod that sets up to stretch into from the live-rollers in, acts on the reentrant corner department that forms between wall and the ceiling, is convenient for effectively clear up the wall skin of reentrant corner department.

The utility model discloses a following technical scheme realizes:

a cleaning device for a wall skin at an internal corner of a wall surface comprises a base, wherein a plurality of universal wheels are arranged at the bottom of the base, a first driving mechanism is arranged at the top of the base, a fixed block is arranged on a first output shaft of the first driving mechanism, a transverse plate is arranged on the side wall of the fixed block, one end of the transverse plate is connected with the fixed block, a frame of a U-shaped structure is arranged at the other end of the transverse plate, a second driving mechanism is arranged on one side of the frame, a rotating roller is arranged in a U-shaped groove of the frame, a second output shaft of the second driving mechanism is connected with the rotating roller, and a plurality of convex teeth are arranged; first blind holes are formed among the convex teeth of the rotating roller and are distributed on the rotating roller in an annular array along the axis of the rotating roller, second elastic pieces are arranged in the first blind holes, one ends of the second elastic pieces are connected with the inner bottoms of the first blind holes, movable rods are arranged at the other ends of the second elastic pieces and can move along the radial direction of the rotating roller, cleaning balls are arranged at the tail ends of the movable rods, which are positioned at the outer ends of the first blind holes, and the diameter of each cleaning ball is smaller than the thickness of the convex teeth; be equipped with a plurality of second blind holes on the sphere of clearance ball, all be equipped with the third elastic component in the second blind hole, third elastic component one end is connected with second blind hole inner bottom, and the other end is equipped with the clearance piece to the clearance piece can remove along the radial direction of clearance ball.

Aiming at the wall skin cleaning equipment in the traditional technology, generally comprising a motor and a rotating roller, wherein a plurality of convex teeth are arranged on the rotating roller, when the motor works, the rotating roller is driven to rotate, the wall skin on the wall surface is cleaned by the convex teeth on the rotating roller, the larger the diameter of the rotating roller is, the larger the area of the wall skin acted on the wall surface in unit time is, but the disadvantages are brought that the larger the distance between the rotating roller and a negative angle formed by a ceiling and the wall surface is, so that the larger the area of a dead angle to be cleaned is, therefore, the technical scheme is that a plurality of first blind holes are arranged on the rotating roller, a movable rod and a second elastic piece are arranged in each blind hole, when the second elastic piece is not acted by external force, one end of the movable rod extends out of the first blind hole, when the second elastic piece is acted by external force, the movable rod can compress the second elastic piece to extend into the first blind hole, and the distance from the outermost end of the movable rod to the axial direction of the rotating roller is smaller than the distance from the convex teeth to the axial direction of the rotating roller, so that when the cleaning device is used, the rotating roller is driven to start to select by utilizing a second drive, the base is pushed to move towards the wall surface, the convex teeth on the rotating roller can act on the wall surface, and the movable rod can move along the radial direction of the rotating roller, so that when the cleaning ball on the movable rod contacts the wall surface, the wall surface is easy to press the cleaning ball due to the spherical structure of the cleaning ball, the cleaning ball is forced to push the movable rod to compress the second elastic piece, the convex teeth and the cleaning ball can act on the wall surface together, and the wall surface on the wall surface is cleaned together; in the cleaning process, the fixed block is driven by the first driving mechanism to move upwards along the vertical direction, the rotating roller is forced to move upwards slowly along the wall surface, the wall surface on the wall surface is cleaned one by one from bottom to top, when the rotating roller reaches the ceiling, the cleaning ball which does circular motion is forced to contact with the ceiling in an inclined way under the action of the ceiling, the cleaning ball is pressed to push the movable rod to compress the second elastic piece, the movable rod is forced to retract into the first blind hole, when the cleaning ball rotates over the ceiling and reaches the internal corner, the movable rod is forced to extend out of the first blind hole again under the action of the second elastic piece and moves rapidly towards the internal corner, the rotation of the cleaning ball acts on the wall surface at the internal corner, so that the wall surface at the internal corner is cleaned, when the cleaning ball rotates over the internal corner and reaches the wall surface, the cleaning ball retracts into the first blind hole again under the action of the wall surface, the wall surface can be ensured to pass through smoothly, so that the wall skin at the internal corner is cleaned, and the area of the cleaning dead angle at the internal corner is effectively reduced; simultaneously, this technical scheme still is equipped with the second blind hole in order to further increase the clearance area to the reentrant corner in the ball, has set up third elastic component and clearance piece in the second blind hole, because the clearance piece is sheet structure, when treating that the clearance ball rotates reentrant corner department, under the effect of third elastic component, can promote the clearance piece and handle the removal towards the reentrant corner, further increase the clearance area of reentrant corner, utilize the flexible mode of second grade, improved the clearance dynamics of wall skin to reentrant corner department greatly.

Furthermore, a water storage tank is also arranged at the top of the base, a water pipe is arranged on the water storage tank, and a water suction pump is arranged on the water pipe; still all be equipped with the water storage chamber on the first blind hole inner wall to two adjacent water storage chamber communicate each other, water pipe and one of them water storage chamber intercommunication, the length of the water pipe of setting is enough long, guarantees that the live-rollers is at the pivoted in-process, and the water pipe can follow the first output shaft of person and rotate together, and the winding is on first output shaft to water pipe and water pump threaded connection are convenient for dismantle water pipe and water pump link after having used up, thereby can pull down from first output shaft fast, be equipped with a plurality of ring channels on the outer wall of movable rod, the ring channel distributes along the axial direction of movable rod.

Because the cleaning sheets on the convex teeth and the cleaning balls are inevitably in collision contact with the wall in the cleaning process of the wall surface and the wall skin, the temperature of the convex teeth and the cleaning sheets is forced to rise, and the stable cleaning sheets are stably transmitted to the cleaning balls and the movable rods one by one, in order to improve the service life of each part, a water storage cavity is arranged on the inner wall of the blind hole and is communicated with one water storage cavity by a water pipe, when a water suction pump works, cooling liquid stored in the water storage cavity is sent into the water storage cavity, and when the movable rods retract into the blind holes, movable rod sections positioned outside the rotating rollers can be in contact with the cooling liquid in the water storage cavity for heat exchange to dissipate heat transmitted to the movable rods; simultaneously set up a plurality of ring channels on the circumference outer wall of movable rod, the area of contact of the coolant liquid in the water storage cavity and movable rod has been increased on the one hand, thereby the cooling effect to the movable rod has been improved, on the other hand, after the wall was walked around to the clearance ball, stretch out the movable rod again from the second blind hole in doing of second elastic component, at this moment, the coolant liquid that is located the movable rod ring channel can follow the movable rod and move out in the blind hole together, and splash to the dogtooth, clearance ball and clearance piece, thereby reach the purpose to each spare part cooling.

Further, still be equipped with the sealing washer that matches with the movable rod on the inner wall of first blind hole, the sealing washer is close to the exit end in blind hole to the sealing washer overlaps on the movable rod.

The sealing washer that sets up is used for avoiding storing the leakage of the coolant liquid in the water storage intracavity to the tensile maximum length sealing washer of second elastic component can seal the movable rod all the time.

Furthermore, the fixed block is sleeved on the first output shaft and can rotate around the axis direction of the first output shaft. The first output shaft is further provided with two limiting nuts, the limiting nuts are connected with the output shaft through threads, and the fixing block is located between the two limiting nuts.

In order to facilitate the fast wall skin clearance of carrying out to four walls in the room, so establish the fixed block cover on first output shaft, dead fixed block can rotate round the axial of first output shaft, and the orientation of the quick adjustment live-rollers of being convenient for need not to move under the condition of base direction, can clear up the wall in different position fast.

Furthermore, the bottom of the rack is also provided with a scrap collecting box, the scrap collecting box is positioned below the rotating roller, the top of the scrap collecting box is also provided with a scraper, and the scrap collecting box can move along the horizontal direction.

The sweeps collecting box that sets up is used for concentrating the collection with the wall skin piece that the clearance got off, avoids the wall skin piece to scatter around, simultaneously, when first actuating mechanism drive live-rollers removed along vertical direction up, does benefit to the scraper blade on the sweeps collecting box and can laminate on the wall, strikes off the wall skin to remaining on the wall.

Furthermore, still be equipped with coupling assembling between sweeps collecting box and the frame, coupling assembling and frame sliding connection to coupling assembling still articulates with the sweeps collecting box, the bottom of frame still is equipped with the lug, and the lug still is equipped with first elastic component with movable assembly.

The connecting assembly is in sliding connection with the machine, so that the scrap collecting box can have a certain displacement in the horizontal direction, and the scrap collecting box can be effectively attached to a wall; simultaneously with the sweeps collecting box be connected through articulated mode with coupling assembling for the sweeps collecting box can rotate down, is convenient for empty out fast the wall skin piece of collecting in the sweeps collecting box.

Further, coupling assembling includes first connecting block and slider, the bottom of frame still is equipped with the spout, is equipped with the slider that matches with the spout in the spout, the both ends of first elastic component are connected with lug and slider respectively, the bottom of slider is equipped with the dovetail, and the dovetail communicates with the both sides of slider, the top of first connecting block still is equipped with the third connecting block that matches with the dovetail to the third connecting block is located the dovetail.

The first connecting block and the sliding block are connected in a matched manner by adopting the dovetail groove and the third connecting block, so that the first connecting block and the sliding block can be conveniently and quickly assembled and disassembled, and the scrap collecting box is detached from the rack and maintained or replaced; simultaneously the third elastic component is when not receiving the exogenic action, the elasticity that the third elastic component produced promotes the slider and removes to the stroke end of spout, the outside of sweeps collecting box is located the outside of clearance ball this moment, therefore, during the use, need extrude the wall with the sweeps collecting box, force slider compression third elastic component, after guaranteeing that the sweeps box can move back a distance, the dogtooth on the live-rollers just can effectively contact with the wall, and then make the sweeps box at the in-process that uses, can press tightly on the wall.

Furthermore, the bottom of the first connecting block is provided with a mounting groove, the width of the mounting groove is larger than that of the scrap collecting box, connecting rods are arranged on two sides of the scrap collecting box and penetrate through the first connecting block, fixing nuts are arranged on the connecting rods, and the fixing nuts are located on the outer side of the first connecting block.

The connecting rod and the fixing nut which are arranged can be used for rotating the waste chip collecting box, so that the opening of the waste chip collecting box faces downwards, and the wall skin collected in the waste chip collecting box can be poured out conveniently and quickly.

Furthermore, the cleaning sheet is also provided with an inclined plane.

The inclined plane of setting has increased the area of contact of clearance piece with the wall skin on the one hand, has improved the clearance effect to the wall skin, and on the other hand is convenient for clear up the piece and contacts with the wall, guarantees that the wall can oppress the clearance piece and retract in the second blind hole.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model relates to a cleaning device for wall skin at internal corner of wall, when clearing up the internal corner of wall, the second elastic component that utilizes to set up can force the movable rod to move towards the internal corner direction, utilize the clearance ball to clear up the wall skin at internal corner, thereby reduced the area at the dead angle of internal corner, improved the clearance effect to the wall skin at internal corner of wall, utilize the clearance piece in the clearance ball to further enlarge the clearance area to the internal corner simultaneously, guarantee to effectively clear up the wall skin at internal corner;

2. the utility model relates to a cleaning device for wall skin at wall reentrant corner department, when the movable rod retracts in first blind hole, utilize the coolant liquid that stores in the water storage intracavity can play certain cooling effect to the movable rod, improve the life of movable rod, simultaneously the movable rod is in the process of stretching out, the coolant liquid can be along with the movable rod leaks out to act on each spare part nearby, thereby improve the life of this device;

3. the utility model relates to a cleaning device for wall reentrant corner department wall skin utilizes the sweeps collecting box that sets up can concentrate the wall skin piece that will clear up and collect to guarantee that the sweeps collecting box can effectively be in the same place with the wall is close-fitting, the sweeps collecting box is at the in-process that removes simultaneously, utilizes the scraper blade on the sweeps collecting box can further improve the clearance dynamics to the wall.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

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

fig. 2 is a bottom view of the frame of the present invention;

FIG. 3 is a top view of the scrap collecting box of the present invention;

fig. 4 is a schematic structural diagram of the first connecting block of the present invention;

FIG. 5 is a schematic structural view of the rotating roller of the present invention;

FIG. 6 is an enlarged view of the part A of the present invention;

fig. 7 is a schematic structural view of the cleaning ball of the present invention.

Reference numbers and corresponding part names in the drawings:

1-a base, 2-a first driving mechanism, 3-a first output shaft, 4-a water storage tank, 5-a water pump, 6-a universal wheel, 7-a first elastic piece, 8-a first connecting block, 9-a scrap collecting box, 10-a scraping plate, 11-a fixed block, 12-a limiting nut, 13-a transverse plate, 14-a water pipe, 15-a convex block, 16-a sliding block, 17-a rack, 18-a second driving mechanism, 19-a rotating roller, 20-a movable rod, 21-a cleaning ball, 22-a dovetail groove, 23-a U-shaped groove, 24-a second output shaft, 25-a sliding groove, 26-a sliding block, 27-a fixing nut, 28-a third connecting block, 29-a mounting groove, 30-a convex tooth and 31-a water storage cavity, 32-annular groove, 33-sealing ring, 34-second elastic element, 35-cleaning sheet, 36-inclined surface, 37-third elastic element.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

As shown in fig. 1 to 7, the utility model relates to a cleaning device for wall skin at internal corner of wall, including base 1, base 1 bottom is equipped with a plurality of universal 6, the top of base 1 is equipped with first actuating mechanism 2, and first actuating mechanism 2 is the pneumatic cylinder, is equipped with fixed block 11 on first output shaft 3 of first actuating mechanism 2, be equipped with diaphragm 13 on the lateral wall of fixed block 11, diaphragm 13 one end is connected with fixed block 11, is equipped with frame 17 of U type structure on the other end, one side of frame 17 is equipped with second actuating mechanism 18, and second actuating mechanism 18 is the motor, is equipped with rotor roll 19 in the U type groove 23 of frame 17, and the second output shaft of second actuating mechanism 18 is connected with rotor roll 19, be equipped with a plurality of dogteeth 30 on the circumference outer wall of rotor roll 19; first blind holes are formed among convex teeth of the rotating roller 19 and distributed on the rotating roller 19 in an annular array mode along the axis of the rotating roller 19, second elastic pieces 34 are arranged in the first blind holes, the second elastic pieces 34 are springs, one ends of the second elastic pieces 34 are connected with the inner bottom of the first blind holes, movable rods 20 are arranged at the other ends of the second elastic pieces 34, the movable rods 20 can move along the radial direction of the rotating roller 19, and cleaning balls 21 are arranged at the tail ends, located at the outer ends of the first blind holes, of the movable rods 20; be equipped with a plurality of second blind holes on clearance ball 21's the sphere, all be equipped with third elastic component 37 in the second blind hole, third elastic component 37 is the spring, third elastic component 37 one end is connected with second blind hole inner bottom, and the other end is equipped with clearance piece 35 to clearance piece 35 can remove along clearance ball 21's radial direction.

Example 2

On the basis of the embodiment 1, a water storage tank 4 is further arranged at the top of the base 1, a water pipe 14 is arranged on the water storage tank 4, and a water suction pump 5 is arranged on the water pipe 14; still all be equipped with water storage chamber 31 on the first blind hole inner wall to two adjacent water storage chamber communicate each other, water pipe 14 communicates with one of them water storage chamber 31, be equipped with a plurality of ring channels 32 on the outer wall of movable rod 20, the ring channel 32 distributes along the axial direction of movable rod 20.

Example 3

On the basis of embodiment 2, a sealing ring 33 matched with the movable rod 20 is further arranged on the inner wall of the first blind hole, the sealing ring 33 is close to the outlet end of the blind hole, and the sealing ring 33 is sleeved on the movable rod 20.

Example 4

On the basis of embodiment 1, the fixing block 11 is sleeved on the first output shaft 3, and the fixing block 11 can rotate around the axial direction of the first output shaft 3.

Example 5

On the basis of embodiment 4, two limit nuts 12 are further arranged on the first output shaft 3, the limit nuts 12 are connected with the output shaft 3 through threads, and the fixing block 11 is located between the two limit nuts 12.

Example 6

On the basis of embodiment 1, the bottom of the frame 17 is further provided with a scrap collecting box 9, the scrap collecting box 9 is positioned below the rotating roller 19, the top of the scrap collecting box 9 is further provided with a scraper 10, and the scrap collecting box 9 can move along the horizontal direction.

Example 7

On the basis of embodiment 1, still be equipped with coupling assembling between sweeps collecting box 9 and the frame 17, coupling assembling and frame 17 sliding connection to coupling assembling still articulates with sweeps collecting box 9, the bottom of frame 17 still is equipped with lug 15, and lug 15 still is equipped with first elastic component 7 with the movable assembly, and first elastic component 7 is the spring.

Example 8

On the basis of embodiment 7, the connecting assembly includes a first connecting block 8 and a slider 16, the bottom of the rack 17 is further provided with a sliding groove, the slider 16 matched with the sliding groove is arranged in the sliding groove, two ends of the first elastic member 7 are respectively connected with the protruding block 15 and the slider 16, the bottom of the slider 16 is provided with a dovetail groove 22, the dovetail groove 22 is communicated with two sides of the slider 16, the top of the first connecting block 8 is further provided with a third connecting block 28 matched with the dovetail groove 22, and the third connecting block 28 is located in the dovetail groove 22.

Example 9

On the basis of the embodiment 8, the bottom of the first connecting block 8 is provided with a mounting groove 29, the width of the mounting groove 29 is larger than that of the scrap collecting box 9, both sides of the scrap collecting box 9 are also provided with connecting rods 26, the connecting rods 26 penetrate through the first connecting block 8, the connecting rods 26 are also provided with fixing nuts 27, and the fixing nuts 27 are positioned on the outer side of the first connecting block 8.

Example 10

On the basis of embodiment 1, the cleaning sheet 35 is further provided with a bevel 36.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The cleaning device for the wall skin at the internal corner of the wall is characterized by comprising a base (1), wherein a plurality of universal wheels (6) are arranged at the bottom of the base (1), a first driving mechanism (2) is arranged at the top of the base (1), a fixed block (11) is arranged on a first output shaft (3) of the first driving mechanism (2), a transverse plate (13) is arranged on the side wall of the fixed block (11), one end of the transverse plate (13) is connected with the fixed block (11), a frame (17) of a U-shaped structure is arranged at the other end of the transverse plate (13), a second driving mechanism (18) is arranged on one side of the frame (17), a rotating roller (19) is arranged in a U-shaped groove (23) of the frame (17), a second output shaft of the second driving mechanism (18) is connected with the rotating roller (19), and a plurality of convex teeth (30) are arranged on the outer wall; first blind holes are formed among convex teeth of the rotating roller (19), the first blind holes are distributed on the rotating roller (19) in an annular array mode along the axis of the rotating roller (19), a second elastic piece (34) is arranged in each first blind hole, one end of each second elastic piece (34) is connected with the inner bottom of each first blind hole, a movable rod (20) is arranged at the other end of each second elastic piece, the movable rods (20) can move along the radial direction of the rotating roller (19), and cleaning balls (21) are arranged at the tail ends, located at the outer ends of the first blind holes, of the movable rods (20); be equipped with a plurality of second blind holes on the sphere of clearance ball (21), all be equipped with third elastic component (37) in the second blind hole, third elastic component (37) one end is connected with second blind hole inner bottom, and the other end is equipped with clearance piece (35) to clearance piece (35) can be along the radial direction removal of clearance ball (21).

2. The cleaning device for the wall skin at the internal corner of the wall surface is characterized in that a water storage tank (4) is further arranged at the top of the base (1), a water pipe (14) is arranged on the water storage tank (4), and a water suction pump (5) is arranged on the water pipe (14); still all be equipped with water storage chamber (31) on the first blind hole inner wall to two adjacent water storage chamber communicate each other, water pipe (14) and one of them water storage chamber (31) intercommunication, be equipped with a plurality of ring channels (32) on the outer wall of movable rod (20), the axial direction distribution of movable rod (20) is followed in ring channel (32).

3. A device for cleaning the wall skin at the internal corner of a wall surface according to claim 2, characterized in that the inner wall of the first blind hole is further provided with a sealing ring (33) matched with the movable rod (20), the sealing ring (33) is close to the outlet end of the blind hole, and the sealing ring (33) is sleeved on the movable rod (20).

4. A cleaning device for wall skin at the internal corner of a wall surface according to claim 1, characterized in that the fixing block (11) is sleeved on the first output shaft (3), and the fixing block (11) can rotate around the axial direction of the first output shaft (3).

5. A cleaning device for the wall skin at the internal corner of a wall surface is characterized in that two limiting nuts (12) are further arranged on the first output shaft (3), the limiting nuts (12) are connected with the output shaft (3) through threads, and the fixing block (11) is located between the two limiting nuts (12).

6. The cleaning device for the wall skin at the internal corner of the wall surface is characterized in that the bottom of the frame (17) is also provided with a scrap collecting box (9), the scrap collecting box (9) is positioned below the rotating roller (19), the top of the scrap collecting box (9) is also provided with a scraper (10), and the scrap collecting box (9) can move along the horizontal direction.

7. A cleaning device for the wall skin at the internal corner of a wall surface according to claim 6, characterized in that a connecting assembly is further arranged between the waste collection box (9) and the frame (17), the connecting assembly is slidably connected with the frame (17), the connecting assembly is further hinged with the waste collection box (9), a bump (15) is further arranged at the bottom of the frame (17), and the bump (15) and the movable assembly are further provided with the first elastic member (7).

8. The cleaning device for the wall skin at the internal corner of the wall surface is characterized in that the connecting assembly comprises a first connecting block (8) and a sliding block (16), the bottom of the rack (17) is further provided with a sliding groove, the sliding groove is internally provided with the sliding block (16) matched with the sliding groove, two ends of the first elastic piece (7) are respectively connected with the convex block (15) and the sliding block (16), the bottom of the sliding block (16) is provided with a dovetail groove (22), the dovetail groove (22) is communicated with two sides of the sliding block (16), the top of the first connecting block (8) is further provided with a third connecting block (28) matched with the dovetail groove (22), and the third connecting block (28) is positioned in the dovetail groove (22).

9. The cleaning device for the wall skin at the internal corner of the wall surface is characterized in that the bottom of the first connecting block (8) is provided with a mounting groove (29), the width of the mounting groove (29) is larger than that of the waste chip collecting box (9), both sides of the waste chip collecting box (9) are provided with connecting rods (26), the connecting rods (26) penetrate through the first connecting block (8), the connecting rods (26) are provided with fixing nuts (27), and the fixing nuts (27) are positioned on the outer side of the first connecting block (8).

10. A cleaning device for the wall skin at the internal corner of a wall surface as claimed in claim 1, characterized in that said cleaning sheet (35) is further provided with a bevel (36).