Wall planing machine

Abstract

The utility model provides a wall planing machine. The wall planing machine comprises a device body, a fan assembly, a plane grinding disc and a protective cover. A mounting space for mounting a fan assembly is formed in the device main body, and an exhaust hole communicated with the mounting space is formed in the device main body; the protection cover comprises a mounting disc and a protection piece part, the mounting disc is connected to the device body and provided with an assembly hole, the plane grinding disc is arranged on the side, back on to the device body, of the mounting disc and rotationally connected with the device body through the assembly hole, and a dust guide through hole facing the device body is formed in the plane grinding disc. The protection piece part surrounds the plane grinding disc and is connected with the mounting disc. The plane grinding disc is exposed out of the side, back to the device body, of the protection piece part. A dust collection channel communicated with the mounting space is formed in the mounting disc, and a dust guide groove communicated with the dust collection channel is formed in the protection piece part; and through cooperation of the dust guide groove and the dust collection channel, the adsorption range of the polishing particles is widened, the number of the polishing particles flying in the air is reduced, and the wall planing machine can be conveniently used for polishing the wall.

Description

Technical Field

[0001] The present invention relates to the technical field of wall processing equipment, and in particular to a wall planing machine. Background Art

[0002] With the continuous improvement of living standards, since the wall paint and wall plaster of old houses will gradually age during the use of house construction, residents will renovate and redecorate old houses, and need to remove the aging wall plaster and wall paint on the wall. For this reason, wall planing machines appear on the market, which can quickly complete the treatment of the walls of old houses. The wall planing machine usually has a rotating grinding disc, which cleans the wall surface through the plane of the grinding disc, but for safety reasons, a ring-shaped protective cover structure is set on the outside of the grinding disc. The grinding disc rotates to grind the wall surface of the wall, but the grinding particles formed by the wall plaster and wall paint when the grinding disc is grinding the wall will splash, and the grinding particles will spread in the air, affecting the sight of the staff, and the grinding particles will be harmful to the health of the user after being inhaled by the staff. Existing planer machines usually have holes on the surface of the grinding disc and a fan is arranged inside the planer. The fan starts when the grinding disc is grinding, and the fan drives air into the inside of the planer through the holes on the grinding disc. After the air starts, the grinding particles are sucked into the inside of the planer through the holes on the grinding disc, thereby reducing the diffusion of the grinding particles when the planer is grinding the wall.

[0003] However, when the grinding wheel is grinding, the grinding wheel grinds the wall as a whole, and the grinding particles formed at the edge of the grinding wheel will fly out of the grinding wheel due to the rotation of the grinding wheel, making it difficult for the openings on the grinding wheel to absorb the flying grinding particles at the edge of the grinding wheel. When the planer is grinding the wall, there are still a large number of grinding particles at the edge of the grinding wheel diffusing into the air, blocking the staff's line of sight and being easily inhaled by the staff, affecting the planer's operation of grinding the wall. Utility Model Content

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a wall planing machine.

[0005] The present disclosure provides a wall planing machine, comprising a device body, a fan assembly, a flat grinding disc and a protective cover;

[0006] The device body has an installation space inside which the fan assembly is installed, and the device body is provided with an exhaust hole connected to the installation space;

[0007] The protective cover comprises a mounting plate and a guard plate portion, wherein the mounting plate is connected to the device body and is provided with an assembly hole, the plane grinding disc is arranged on a side of the mounting plate facing away from the device body and is rotatably connected to the device body through the assembly hole, the plane grinding disc is provided with a dust guide hole arranged toward the device body, the guard plate portion is arranged around the plane grinding disc and is connected to the mounting plate, and the plane grinding disc is exposed on a side of the guard plate portion facing away from the device body;

[0008] The installation plate is provided with a dust suction channel communicated with the installation space, and the guard plate portion is provided with a dust guide groove communicated with the dust suction channel.

[0009] Optionally, the protective sheet portion includes a plurality of protective sheets, the plurality of protective sheets are detachably connected to the edge of the mounting plate, and the plurality of protective sheets are arranged along the circumference of the mounting plate to surround the surface grinding plate;

[0010] The side of the protection sheet facing away from the device body is recessed to form a sub-groove body. When the protection sheet is connected to the mounting plate, the sub-groove body is communicated with the dust suction channel.

[0011] Optionally, the mounting plate is coaxially arranged with the surface grinding plate, and the diameter of the mounting plate is less than or equal to the diameter of the surface grinding plate.

[0012] Optionally, a plurality of clamping grooves are provided on the edge of the mounting plate, the plurality of clamping grooves are arranged at intervals along the circumference of the mounting plate, and the clamping grooves are communicated with the dust suction channel;

[0013] The protective sheet comprises a protective sheet body and a clamping piece, wherein the clamping piece is arranged on one side of the protective sheet body, and the side of the protective sheet body facing away from the device body is recessed to form a first dust groove, the clamping piece is provided with a second dust groove, and the clamping piece is provided with a connecting hole connected with the second dust groove, and the first dust groove is connected with the second dust groove;

[0014] The clamping members of the plurality of protection sheets are clamped and connected with the plurality of clamping grooves in a one-to-one correspondence. When the clamping members are connected with the clamping grooves, the clamping grooves are connected with the second dust grooves through the connecting holes.

[0015] Optionally, a side of the mounting disc facing the surface grinding disc is recessed to form a collecting groove, the clamping groove is connected to the collecting groove, and the dust suction channel is connected to the collecting groove and the mounting space.

[0016] Optionally, the device body includes a housing and a driving device;

[0017] The installation space is formed inside the shell, the exhaust hole is arranged on the shell, a transmission hole is arranged on the shell, the installation plate is connected to the shell and arranged opposite to the transmission hole, the drive device is installed in the installation space, and the drive device is arranged on a side of the fan assembly close to the transmission hole;

[0018] The assembly hole is arranged opposite to the transmission hole, and a rotating shaft is provided on the side of the surface grinding disc facing the mounting disc, and the rotating shaft passes through the transmission hole and the assembly hole and is connected to the driving device.

[0019] Optionally, the device body further includes a dust guide pipe, the dust guide pipe is connected to the outside of the shell, and the dust guide pipe is communicated with the exhaust hole;

[0020] And / or, the fan assembly includes a fan body and a mounting bracket, the fan body is arranged in the mounting space, the side of the shell facing away from the transmission hole is provided with a mounting hole connected to the mounting space, the mounting bracket is installed in the mounting hole, and part of the mounting bracket extends toward the mounting space to be connected to the fan body.

[0021] Optionally, a connecting piece is provided on the side of the mounting plate facing the shell, a mounting groove is provided on the inner wall of the transmission hole, the connecting piece is plug-connected to the mounting groove, and the dust suction channel is formed inside the connecting piece.

[0022] Optionally, a support assembly is provided on the bottom side of the device body, and the support assembly includes a base, a support rod and a support frame. The device body is detachably connected to the support frame, and the support frame is connected to the base through the support rod. The support rod includes a telescopic joint, and the telescopic joint is telescopic along the direction of the base toward the support frame to drive the support frame closer to or away from the base.

[0023] Optionally, the support assembly further includes a limit plate and a plurality of positioning rods, the plurality of positioning rods are connected to the support frame, the limit plate is arranged on a side of the plurality of positioning rods facing away from the support frame, and the limit plate is rotatably connected to the support frame;

[0024] The device body is provided with a handle, and the handle is provided with a plurality of positioning holes. The plurality of positioning rods are passed through the plurality of positioning holes in a one-to-one correspondence, so that the device body can be installed on the supporting assembly.

[0025] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0026] The wall planing machine provided by the present disclosure comprises a device body, a fan assembly, a plane grinding disc and a protective cover; the device body has an installation space for installing the fan assembly inside, and the device body is provided with an exhaust hole connected to the installation space, so that the fan assembly drives the gas in the installation space to be discharged from the installation space through the exhaust hole; the protective cover comprises a mounting plate and a protective sheet part, the mounting plate is connected to the device body and is provided with an assembly hole, the plane grinding disc is arranged on the side of the mounting plate facing away from the device body and is rotatably connected to the device body through the assembly hole, the plane grinding disc is provided with a dust guide through hole arranged toward the device body, and the protective sheet part surrounds the plane The grinding disc is set and connected to the mounting disc, and the flat grinding disc is exposed on the side of the guard plate part facing away from the device body, so that the side of the flat grinding disc facing away from the device body can be used for grinding walls; the mounting disc is provided with a dust suction channel connected to the mounting space, and the guard plate part is provided with a dust guide groove connected to the dust suction channel; when the wall planer grinds the wall, the grinding particles flying out of the edge of the flat grinding disc enter and are sucked into the dust guide groove, thereby expanding the adsorption range of the grinding particles at the flat grinding disc, reducing the number of grinding particles flying in the air when the wall planer grinds the wall, improving the working environment of the staff, and making it convenient for the staff to use the wall planer to grind the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 This is an exploded view of the wall planing machine described in the embodiment of the present disclosure;

[0030] Figure 2 This is an assembly diagram of the wall planing machine described in the embodiment of the present disclosure;

[0031] Figure 3 It is a side view of the main body of the device according to the embodiment of the present disclosure;

[0032] Figure 4 It is a front view of the wall planing machine according to the embodiment of the present disclosure;

[0033] Figure 5 for Figure 4 Middle AA section view;

[0034] Figure 6 This is a schematic diagram of the assembly structure of the installation plate and the protection sheet according to the embodiment of the present disclosure;

[0035] Figure 7 This is a schematic diagram of the assembly structure of the installation plate and part of the protection sheet according to the embodiment of the present disclosure;

[0036] Figure 8 This is a schematic diagram of the structure of the protection sheet according to the embodiment of the present disclosure;

[0037] Fig. 9 This is a schematic diagram of the structure when the card-connecting block is connected to the protection sheet according to the embodiment of the present disclosure;

[0038] Fig.10 This is one of the structural schematic diagrams of the installation disk according to the embodiment of the present disclosure;

[0039] Fig.11 This is the second structural schematic diagram of the installation disk according to the embodiment of the present disclosure;

[0040] Fig.12 It is a schematic diagram of the assembly structure of the fan body and the mounting bracket described in the embodiment of the present disclosure.

[0041] Among them, 1. device body; 11. shell; 12. dust guide tube; 13. handle; 131. positioning hole; 14. dust guide cavity; 2. flat grinding disc; 21. dust guide through hole; 22. rotating shaft; 3. mounting plate; 31. dust suction channel; 32. connecting piece; 33. assembly hole; 34. snap-in groove; 341. receiving groove; 35. collecting groove; 36. snap-in block; 361. elastic member; 4. protective sheet; 411 , guard plate body; 412, snap-on piece; 42, sub-slot body; 421, first dust slot; 422, second dust slot; 43, connecting hole; 44, positioning slot; 5, support assembly; 51, base; 52, support rod; 53, support frame; 54, positioning rod; 55, limit plate; 6, driving device; 61, connecting channel; 7, fan assembly; 71, fan body; 72, mounting bracket; 721, bottom plate; 722, mounting column. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0044] Reference Figures 1 to 12As shown, the embodiment of the present disclosure provides a wall planing machine, including a device body 1, a fan assembly 7, a plane grinding disc 2 and a protective cover; the device body 1 has an installation space inside which the fan assembly 7 is installed, and the device body 1 is provided with an exhaust hole connected to the installation space; the protective cover includes a mounting plate 3 and a protective plate portion 4, the mounting plate 3 is connected to the device body 1 and is provided with an assembly hole 33, the plane grinding disc 2 is arranged on the side of the mounting plate 3 facing away from the device body 1 and is rotatably connected to the device body 1 through the assembly hole 33, the plane grinding disc 2 is provided with a dust guide hole 21 arranged toward the device body 1, the protective plate portion 4 is arranged around the plane grinding disc 2 and is connected to the mounting plate 3, and the plane grinding disc 2 is exposed on the side of the protective plate portion 4 facing away from the device body 1; the mounting plate 3 is provided with a dust suction channel 31 connected to the mounting space, and the protective plate portion 4 is provided with a dust guide groove connected to the dust suction channel 31.

[0045] Specifically, the device body 1 is the main structure of the wall planer, and the flat grinding disc 2 is rotatably connected to the device body 1. When it is necessary to remove wall dust and wall paint on the wall surface, the user can hold the device body 1 to rotate the flat grinding disc 2 relative to the device body 1. The side of the flat grinding disc 2 facing away from the device body 1 can grind the wall to remove the wall dust and wall paint on the wall.

[0046] The interior of the above-mentioned device body 1 is hollow, and the space inside the device body 1 is the installation space. The fan assembly 7 can be optionally set in the installation space, and a through hole can be optionally set on the surface of the device body 1 as an exhaust hole. After the fan assembly 7 is started, the gas in the installation space is discharged from the exhaust hole, and the air outside the installation space passes through the dust guide groove and the dust guide through hole 21 and then enters the installation space through the dust suction channel 31, so that the grinding particles formed when the flat grinding disc 2 grinds the wall can enter the installation space with the flow of air.

[0047] A through hole can be selectively set on the above-mentioned device body 1 as an exhaust hole, and the fan assembly 7 can be selectively set as a hair dryer with fan blades, and the exhaust hole is set on the exhaust side of the hair dryer. After the hair dryer is started, it drives the gas in the installation space to flow, and the gas in the installation space is discharged from the installation space through the exhaust hole, so that the interior of the installation space is in a negative pressure state, and the gas outside the installation space will enter the dust suction channel 31 through the dust guide through hole 21 and the dust guide groove, and enter the installation space through the dust suction channel 31; of course, the fan assembly 7 can also be selected as a turbine exhaust fan, the turbine exhaust fan has an exhaust pipe, and the exhaust pipe extends out of the installation space through the exhaust hole. After the turbine exhaust fan is started, the gas in the installation space can be discharged into the installation space through the exhaust pipe.

[0048] The above-mentioned mounting disk 3 can be selected as a disc structure, and an assembly hole 33 is set at the center of the mounting disk 3. The rotating shaft 22 can be set on the side of the surface grinding disk 2 facing the device body 1, and the rotating shaft 22 passes through the assembly hole 33 to be connected with the device body 1. Of course, a motor can also be provided on the side of the device body 1 facing the mounting disk 3, and the output shaft of the motor can rotate. The output shaft of the motor passes through the assembly hole 33 and is rotatably connected to the surface grinding disk 2.

[0049] The above-mentioned mounting plate 3 can be selected as a circular plate body, and a pillar is set on one side of the mounting plate 3, and the pillar is connected to the device body 1, so that the mounting plate 3 is connected to the device body 1. Of course, the mounting plate 3 can also be connected to the outside of the device body 1 by bonding on the side facing the device body 1, or a plurality of screw holes can be set around the assembly hole 33 on the mounting plate 3, and the bolts are passed through the screw holes on the mounting plate 3 to connect to the device body 1.

[0050] The above-mentioned guard plate portion 4 can be selected as an annular structural member, the plane grinding disc 2 is arranged on the inner side of the annular structural member, the annular structural member is coaxially arranged with the plane grinding disc 2, and the side of the plane grinding disc 2 along the axial direction of the plane grinding disc 2 facing away from the device main body 1 is located on the side of the guard plate portion 4 facing away from the device main body, so that the plane grinding disc 2 is exposed on the side of the guard plate portion 4 facing away from the device main body 1, and the side of the plane grinding disc 2 facing away from the device main body 1 can be used to fit with the wall, so that when the plane grinding disc 2 rotates, the side of the plane grinding disc 2 facing away from the device main body 1 grinds the wall surface.

[0051] The above-mentioned dust suction channel 31 can be selected as a through hole on the mounting disk 3, the through hole passes through the mounting disk 3 and passes through the connection between the mounting disk 3 and the device body 1, so that the dust suction channel 31 is connected with the mounting space. Of course, it is also possible to choose to set a through hole on the mounting disk 3, and set a through hole connected with the mounting space on the side of the device body 1 facing the mounting disk 3, and use a tubular structure to connect the through hole on the mounting disk 3 and the through hole on the device body 1, and the space inside the tubular structure forms the dust suction channel 31.

[0052] The end of the dust suction channel 31 away from the device body 1 can be located on a side surface of the mounting disk 3 away from the device body 1. The guard plate portion 4 surrounds the plane grinding disk 2 and also surrounds the mounting disk 3. The guard plate portion 4 is provided with a connecting hole 43 on a side of the mounting disk facing the mounting disk in the radial direction of the mounting disk 3, and the connecting hole 43 is connected with the dust guide groove, so that when the guard plate portion 4 is connected to the mounting disk 3, the connecting guide is provided on the side of the mounting disk 3 facing away from the device body 1 toward the dust suction channel 31, so that the dust guide groove is connected with the dust suction channel 31. Of course, it is also possible to choose that after the guard plate portion 4 is connected to the edge of the mounting disk 3, the side of the mounting disk 3 facing away from the device body 1 is recessed to form a connecting groove, and the connecting groove extends to the guard plate portion 4, and the guard plate portion 4 is provided with an opening on the side facing the mounting disk 3, so that the connecting groove is connected with the dust guide groove through the opening, and one end of the dust suction channel 31 is connected with the connecting groove, and the other end is connected with the mounting space.

[0053] The above-mentioned dust guide groove can be selected as a groove formed by a depression on the side of the guard plate part 4 facing away from the device body 1. Of course, a groove formed by a depression on the side of the guard plate part 4 facing the plane grinding disc 2 in the radial direction of the plane grinding disc 2 can also be selected. As long as the grinding particles flying out from the edge of the plane grinding disc 2 when grinding the wall can pass through the notch of the dust guide groove, the grinding particles around the notch of the dust guide groove can be sucked into the dust guide groove when the fan is started.

[0054] The above-mentioned guard plate portion 4 is arranged around the plane grinding disc 2. The grinding particles formed at the edge of the plane grinding disc 2 enter the dust guide groove of the guard plate portion 4 and then enter the installation space through the dust suction channel 31. The grinding particles formed in the central area of ​​the plane grinding disc 2 enter the dust suction channel 31 through the dust guide hole 21 and enter the installation space, thereby reducing the number of grinding particles diffused into the air during grinding.

[0055] When the wall planing machine provided by the embodiment of the present disclosure is used, the plane grinding disc 2 is rotated, and the side of the plane grinding disc 2 facing away from the device body 1 is fitted with the wall, so that the side of the plane grinding disc 2 facing away from the device body 1 grinds the wall, and the fan assembly 7 is started to discharge the gas in the installation space through the exhaust hole. The grinding particles formed in the middle area of ​​the plane grinding disc 2 enter the dust suction channel 31 through the dust guide hole 21, and then enter the installation space through the dust suction channel 31. The grinding particles formed at the edge of the plane grinding disc 2 enter the dust guide groove of the guard plate part 4 and then enter the installation space through the dust suction channel 31, thereby reducing the concentration of grinding particles in the air when the plane grinding disc 2 is grinding.

[0056] The wall planing machine provided by the embodiment of the present disclosure includes a device body 1, a fan assembly 7, a plane grinding disc 2 and a protective cover; the device body 1 has an installation space for installing the fan assembly 7, and the device body 1 is provided with an exhaust hole connected to the installation space, so that the fan assembly 7 drives the gas in the installation space to be discharged from the installation space through the exhaust hole; the protective cover includes a mounting plate 3 and a protective plate portion 4, the mounting plate 3 is connected to the device body 1 and is provided with an assembly hole 33, the plane grinding disc 2 is arranged on the side of the mounting plate 3 facing away from the device body 1 and is rotatably connected to the device body 1 through the assembly hole 33, the plane grinding disc 2 is provided with a dust guide hole 21 arranged toward the device body 1, and the protective plate portion 4 is arranged around the plane grinding disc 2. The surface grinding disc 2 is arranged and connected with the mounting plate 3, and the surface grinding disc 2 is exposed on the side of the protective plate part 4 facing away from the device body 1, so that the side of the surface grinding disc 2 facing away from the device body 1 can be used for grinding the wall; the mounting plate 3 is provided with a dust suction channel 31 connected with the mounting space, and the protective plate part 4 is provided with a dust guide groove connected with the dust suction channel 31; when the wall planer is grinding the wall, the grinding particles flying out of the edge of the surface grinding disc 2 enter and are sucked into the dust guide groove, and the cooperation of the dust guide groove on the protective plate part 4 and the dust suction channel 31 improves the adsorption range of the grinding particles at the surface grinding disc 2, reduces the number of grinding particles flying in the air when the wall planer is grinding the wall, improves the working environment of the staff, and facilitates the staff to use the wall planer to grind the wall.

[0057] Reference Figure 1 , Figures 6 to 11 As shown, in some embodiments, the protective sheet portion 4 includes a plurality of protective sheets 41, and the plurality of protective sheets 41 are detachably connected to the edge of the mounting plate 3, and the plurality of protective sheets 41 are arranged along the circumference of the mounting plate 3 to surround the plane grinding disc 2; the side of the protective sheet 41 facing away from the device body 1 is recessed to form a sub-groove 42, and when the protective sheet 41 is partially connected to the mounting plate 3, the sub-groove 42 is connected to the dust suction channel 31. In this arrangement, when the plane grinding disc 2 is grinding the wall, the notch of the sub-groove 42 faces the wall, so that the grinding particles dropped by the wall grinding can enter the sub-groove 42, and the protective sheet 41 is detachably connected to the mounting plate 3, and when the plane grinding disc 2 is grinding the edge of the wall, the plane grinding disc 2 can be close to the edge of the wall by removing some of the protective sheets 41, so that the wall planer can be used to grind various positions of the wall.

[0058] Specifically, the protective sheet 41 can be selected to be an arc-shaped sheet, and a plurality of protective sheets 41 are arranged along the circumference of the mounting plate 3 . Adjacent protective sheets 41 can be selected to fit together, or of course, adjacent protective sheets 41 can be selected to be spaced apart.

[0059] The edge of the mounting plate 3 can be provided with an elastic buckle, and the protective sheet 41 moves toward the mounting plate 3 along the radial direction of the mounting plate 3, and the elastic buckle is elastically deformed, so that the protective sheet 41 is connected with the elastic buckle, and the installation operation of the protective sheet 41 and the mounting plate 3 is realized; the protective sheet 41 moves in the radial direction of the mounting plate 3 away from the mounting plate 3, so that the protective sheet 41 is separated from the elastic buckle, so that the protective sheet 41 is separated from the mounting plate 3, and the removal operation of the protective sheet 41 and the mounting plate 3 is realized. Of course, it is also possible to select the edge of the mounting plate 3 to be provided with a screw hole, and the protective sheet 41 is provided with a through hole, and a bolt is passed through the through hole on the protective sheet 41 to connect with the screw hole on the edge of the mounting plate 3, so that the protective sheet 41 is detachably connected to the mounting plate 3 by the bolt.

[0060] When the above-mentioned multiple protection sheets 41 are connected to the mounting plate 3 , the multiple protection sheets 41 can be arranged around the surface grinding disc 2 at the edge of the mounting plate 3 , so that the multiple protection sheets 41 can protect the edge of the surface grinding disc 2 .

[0061] The wall will be connected to the adjacent walls on both sides in the horizontal direction. When the flat grinding wheel 2 is used to grind the edge of the wall away from the device body 1, multiple protective sheets 41 will abut against the adjacent wall, making it difficult for the flat grinding wheel 2 to grind the edge of the guide wall in the horizontal direction; after removing at least one protective sheet 41, the edge of part of the flat grinding wheel 2 can be close to the leading wall, and the flat grinding wheel 2 can be close to the edge of the wall during grinding, so that the flat grinding wheel 2 can grind the edge of the wall.

[0062] The side of the protective sheet 41 facing away from the device body 1 is recessed to form a sub-groove 42. When the flat grinding disc 2 is grinding the wall, the notch of the sub-groove 42 faces the wall, so that the grinding particles dropped from the wall can enter the sub-groove 42. The protective sheet 41 can be optionally provided with a connecting hole 43 on one side of the mounting plate 3 in the radial direction of the mounting plate 3, and the connecting hole 43 is connected to the sub-groove 42. After the protective sheet 41 is connected to the mounting plate 3, the connecting hole 43 is connected to the dust suction channel 31, so that the grinding particles entering the sub-groove 42 enter the installation space through the dust suction channel 31.

[0063] Reference Figure 1 , Figures 5 to 11 As shown, in some embodiments, the mounting disc 3 is coaxially arranged with the plane grinding disc 2, and the diameter of the mounting disc 3 is less than or equal to the diameter of the plane grinding disc 2. With such arrangement, after removing part of the protective sheet 41, the axial direction of the plane grinding disc 2 can be made parallel to the wall, and the edge of the plane grinding disc 2 can be used to grind the wall, so that the plane grinding disc 2 can grind the connection between the edge of the wall and the adjacent wall, thereby increasing the range in which the plane grinding disc 2 can grind the wall.

[0064] Specifically, the diameter of the mounting disk 3 can be selected to be equal to the diameter of the surface grinding disk 2, and the protective sheet 41 can be connected to the edge of the surface grinding disk 2 to surround the surface grinding disk 2. Of course, the diameter of the mounting disk 3 can also be selected to be smaller than the diameter of the surface grinding disk 2, and a protrusion is set on the side of the protective sheet 41 facing the mounting disk 3, and the protrusion is detachably connected to the edge of the mounting disk 3, so that the protective sheet 41 and the mounting disk 3 are radially spaced apart from each other, so that multiple protective sheets 41 can be set around the surface grinding disk 2.

[0065] Reference Figure 1 , Figures 5 to 11 As shown, in some embodiments, a plurality of snap-in grooves 34 are provided at an edge of the mounting disk 3, and the plurality of snap-in grooves 34 are arranged at intervals along the circumference of the mounting disk 3, and the snap-in grooves 34 are connected to the dust suction channel 31; the protective sheet 41 includes a protective sheet body 411 and a snap-in piece 412, the snap-in piece 412 is arranged on one side of the protective sheet body 411, and the side of the protective sheet body 411 facing away from the device body 1 is recessed to form a first dust groove 421, a second dust groove 422 is provided on the snap-in piece 412, and a connecting hole 43 connected to the second dust groove 422 is provided on the snap-in piece 412, and the first dust groove 421 is connected to the second dust groove 422; the snap-in pieces 412 of the plurality of protective sheets 41 are snap-connected to the plurality of snap-in grooves 34 in a one-to-one correspondence, and when the snap-in piece 412 is connected to the snap-in groove 34, the snap-in groove 34 is connected to the second dust groove 422 through the connecting hole 43.

[0066] With such arrangement, the protective sheet 41 can be connected to the mounting disk 3 by inserting the snap-in piece 412 into the snap-in slot 34, thereby improving the convenience of the detachable connection between the protective sheet 41 and the mounting disk 3. Moreover, the snap-in piece 412 can be inserted into the snap-in slot 34 to enable the second dust slot 422 to be connected to the snap-in slot 34 through the connecting hole 43, so that the grinding particles entering the first dust slot 421 can enter the second dust slot 422, and then enter the snap-in slot 34 through the connecting hole 43. Finally, the grinding particles enter the mounting space from the snap-in slot 34 through the dust suction channel 31. Therefore, the protective sheet 41 can be connected to the mounting disk 3 to enable the grinding particles to enter the mounting space through the first dust slot 421.

[0067] Specifically, the snap-in groove 34 can be selected to extend radially along the mounting disk 3, so that the notch of the snap-in groove 34 is formed at the edge of the mounting disk 3, so that the snap-in piece 412 can be moved radially along the mounting disk 3 and inserted into the snap-in groove 34, and the end of the dust suction channel 31 away from the mounting space can be selected to be located at the bottom of the snap-in groove 34, so that the dust suction channel 31 is connected with the snap-in groove 34; of course, it is also possible to select a side of the mounting disk 3 facing the flat grinding disk 2 to be recessed to form a collecting groove 35, and the end of the dust suction channel 31 away from the mounting space is formed at the bottom of the collecting groove 35, and the snap-in groove 34 is connected with the collecting groove 35, so that the snap-in groove 34 is connected with the dust suction channel 31.

[0068] The above-mentioned guard plate body 411 can be selected as an arc-shaped part, and the clip 412 can be selected as a columnar structure or a block structure. The guard plate body 411 is recessed on the side facing away from the device body 1 to form a groove as a first dust groove 421, and the clip 412 is recessed on the side facing away from the device body 1 to form a groove as a second dust groove 422. The first dust groove 421 is connected to the second dust groove 422, and the clip 412 can be selected to form a connecting hole 43 on the side facing away from the guard plate body 411.

[0069] An elastic snap fastener can be optionally provided in the above-mentioned snap-in groove 34. After the snap-in component 412 is inserted into the snap-in groove 34, the snap-in component 412 causes the elastic snap fastener to elastically deform and snap-in connect with the elastic snap fastener. Of course, an elastic snap block can also be optionally provided in the snap-in groove 34. The snap-in component 412 provides a snap slot on one side of the circumference of the mounting plate 3. After the snap-in component 412 is inserted into the snap-in groove 34, the elastic snap block is elastically deformed and inserted into the snap slot, thereby causing the snap-in component 412 to snap-in connect with the snap-in groove 34.

[0070] Of course, it is also possible to select an operation window to be provided on the inner wall of the clamping groove 34 near the plane grinding disc 2, and the inner wall of one side of the clamping groove 34 along the circumference of the mounting plate 3 is recessed to form a receiving groove 341, and a clamping block 36 is provided in the receiving groove 341, and an elastic member 361 is provided on the side of the clamping block 36 facing the bottom of the receiving groove 341, and the elastic member 361 abuts against the bottom of the receiving groove 341, so that the side of the clamping block 36 facing away from the bottom of the receiving groove 341 protrudes from the notch of the receiving groove 341;

[0071] The second dust groove 422 of the clamping member 412 forms an unlocking window on one side facing the plane grinding disc 2. The clamping member 412 is recessed on one side along the circumference of the mounting disc 3 to form a positioning groove 44. The positioning groove 44 is connected with the second dust groove 422. When the clamping member 412 is inserted into the clamping groove 34, the positioning groove 44 is arranged opposite to the receiving groove 341. The side of the clamping block 36 facing away from the groove bottom of the receiving groove 341 is inserted into the positioning groove 44 to be clamped and connected with the positioning groove 44. When it is necessary to remove the clamping member 412 from the clamping groove 34, a finger or a hard rod is inserted into the second dust groove 422 through the unlocking window and the operating window, and a force is applied from the second dust groove 422 to the clamping block 36 in a direction away from the second dust groove 422, so that the clamping block 36 is disengaged from the positioning groove 44, so that the clamping member 412 is disengaged from the clamping groove 34.

[0072] Reference Figure 6 , Figure 7 and Fig.10As shown, in some embodiments, the side of the mounting plate 3 facing the plane grinding plate 2 is recessed to form a collecting groove 35, the clamping groove 34 is connected to the collecting groove 35, and the dust suction channel 31 is connected to the collecting groove 35 and the mounting space. In this way, the grinding particles passing through the dust guide hole 21 can first enter the collecting groove 35, and then enter the mounting space through the dust suction channel 31. The grinding particles entering the dust guide groove first enter the collecting groove 35, and then enter the mounting space through the dust suction channel 31. The collecting groove 35 can pre-collect the grinding particles entering the dust suction channel 31, so as to avoid the grinding particles passing through the dust guide hole 21 and the dust suction channel 31 from accumulating between the plane grinding plate 2 and the mounting plate 3 and falling under their own gravity and being difficult to enter the dust suction channel 31, and facilitate the grinding particles passing through the dust guide hole 21 and the dust suction channel 31 to enter the dust suction channel 31.

[0073] Specifically, the collecting groove 35 can be selected to be a groove with the bottom of the groove being the center of a circle, and the end of the snap-in groove 34 close to the center of the circle of the mounting plate 3 is connected to the collecting groove 35. The end of the dust suction channel 31 away from the installation space can be selected to be formed at the bottom of the collecting groove 35. Of course, the end of the dust suction channel 31 away from the installation space can also be selected to be formed on the side wall of the collecting groove 35.

[0074] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the device body 1 includes a shell 11 and a driving device 6; the installation space is formed inside the shell 11, the exhaust hole is arranged on the shell 11, the shell 11 is provided with a transmission hole, the mounting plate 3 is connected to the shell 11 and arranged opposite to the transmission hole, the driving device 6 is installed in the installation space, and the driving device 6 is arranged on the side of the fan assembly 7 close to the transmission hole; the assembly hole 33 is arranged opposite to the transmission hole, the surface grinding disc 2 is provided with a rotating shaft 22 on the side facing the mounting plate 3, and the rotating shaft 22 passes through the transmission hole and the assembly hole 33 and is connected to the driving device. In this way, the shell 11 can protect the driving device 6 and the fan assembly 7, and the driving device 6 drives the rotating shaft 22 to rotate, so that the rotating shaft 22 drives the surface grinding disc 2 to rotate, so that the surface grinding disc 2 grinds the wall.

[0075] Specifically, the shell 11 can be selected as a columnar structure, or a rectangular shell structure. The interior of the shell 11 is hollow to form an installation space. A through hole can be selected on the shell 11 as a transmission hole, and the rotating shaft 22 can rotate relative to the transmission hole after passing through the transmission hole; the driving device 6 can be selected as a motor, and the output end of the motor is connected to the rotating shaft 22. Of course, the driving device 6 can also be selected as a rotating cylinder, and the output end of the rotating cylinder is connected to the rotating shaft 22.

[0076] The drive device 6 can be spaced apart from the inner wall of the installation space so that the space between the drive device 6 and the inner wall of the installation space forms a connecting channel 61, which communicates with the space on both sides of the drive device 6 in the axial direction of the installation disk 3 in the installation space. Of course, a tubular channel can also be set outside the drive device 6, and the tubular channel is set along the axial direction of the installation disk 3 to pass through the drive device 6. The connecting channel 61 allows the gas in the space near the transmission hole of the drive device 6 to be discharged from the installation space through the exhaust hole after the fan assembly 7 is started.

[0077] After the fan assembly 7 is started, the driving device 6 discharges the gas in the spaces on both sides of the axial direction of the mounting plate 3 out of the mounting space through the exhaust holes, so that the gas outside the mounting space enters the mounting space through the dust suction channel 31 .

[0078] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the device body 1 further includes a dust guide tube 12, which is connected to the outside of the housing 11 and communicates with the exhaust hole. In this way, the dust guide tube 12 can guide the grinding particles in the installation space out, so as to facilitate the collection of the grinding particles absorbed in the installation space.

[0079] Specifically, the dust guide tube 12 is connected to the outside of the shell 11, and the dust guide tube 12 is hollow, so that the grinding particles in the installation space can enter the dust guide tube 12, and the dust guide tube 12 can be connected to the dust bag or dust box, so that the grinding particles in the installation space can enter the dust bag or dust box through the dust guide tube 12.

[0080] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Fig.12 As shown, in some embodiments, the fan assembly 7 includes a fan body 71 and a mounting bracket 72, the fan body 71 is arranged in the installation space, a mounting hole communicating with the installation space is provided on the side of the housing 11 facing away from the transmission hole, the mounting bracket 72 is installed in the mounting hole, and a portion of the mounting bracket 72 extends toward the installation space to connect with the fan body 71. In this way, the mounting bracket 72 can conveniently arrange the fan body 71 in the installation space, and the mounting bracket 72 can also space the fan body 71 from the inner wall of the installation space, so that the fan body 71 can drive the gas flow in the installation space.

[0081] Specifically, the mounting bracket 72 can be selected to include a base plate 721 and a mounting column 722, the mounting column 722 being connected to one side of the base plate 721, the base plate 721 being connected to the mounting hole on the shell 11, the mounting column 722 entering into the mounting space through the mounting hole, and the fan body 71 being connected to the mounting column 722; the exhaust hole can be selected to be arranged on the shell 11 between the fan body 71 and the base plate 721 along the axial direction of the mounting disk 3, so that the gas moves toward the exhaust hole after passing through the fan body 71, so that the gas can be discharged from the installation space from the exhaust hole through the fan body 71 conveniently.

[0082] Reference Figure 5 As shown, in some embodiments, the space between the fan assembly 7 and the driving device 6 forms a dust guide chamber 14. In this way, the dust guide chamber 14 can store part of the grinding particles entering the installation space, so as to prevent the grinding particles from accumulating on the side of the fan assembly 7 facing the driving device 6 and affecting the gas flow in the installation space.

[0083] The fan assembly 7 is spaced apart from the driving device 6 in the axial direction of the mounting plate 3 , so that the space between the fan assembly 7 and the driving device 6 forms a dust guiding chamber 14 .

[0084] Reference Figure 1 , Figure 7 , Fig.10 and Fig.11 As shown, in some embodiments, a connector 32 is provided on the side of the mounting plate 3 facing the housing 11, a mounting groove is provided on the inner wall of the transmission hole, the connector 32 is plugged and connected with the mounting groove, and the dust suction channel 31 is formed inside the connector 32. In this way, the dust suction channel 31 is inside the connector 32, so that the connector 32 is in the mounting groove, the dust suction channel 31 is connected with the transmission hole, and thus the dust suction channel 31 is connected with the installation space, and the plugging of the connector 32 with the mounting groove can connect the mounting plate 3 with the housing 11, and at the same time, the dust suction channel 31 is connected with the installation space, thereby improving the convenience of the connection operation between the mounting plate 3 and the housing 11.

[0085] Specifically, the connecting member 32 can be selected as a columnar structure extending along the axial direction of the mounting disk 3, and multiple connecting members 32 can be selected to be arranged on the mounting disk 3, and multiple mounting grooves can be arranged on the inner wall of the corresponding transmission hole, and the multiple connecting members 32 are plugged into the multiple mounting grooves one by one; the mounting groove extends along the axial direction of the transmission hole, and the dust suction channel 31 passes through the connecting member 32, so that after the connecting member 32 is inserted into the mounting groove, the dust suction channel 31 is connected with the transmission hole, thereby connecting the dust suction channel 31 with the installation space.

[0086] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, a support assembly 5 is provided on the bottom side of the device body 1, and the support assembly 5 includes a base 51, a support rod 52 and a support frame 53. The device body 1 is detachably connected to the support frame 53, and the support frame 53 is connected to the base 51 through the support rod 52. The support rod 52 includes a telescopic joint, and the telescopic joint is telescopic along the base 51 toward the support frame 53 to drive the support frame 53 to approach or move away from the base 51. With such a configuration, the support frame 53 can be used to install the device body 1, and the support frame 53 can move relative to the base 51 through the telescopic support rod 52, so that the device body 1 moves with the support frame 53 to perform grinding operations on different positions of the wall. The support assembly 5 can improve the stability of the plane grinding disc 2 during grinding, and it is also convenient for users to use the wall planer to grind higher positions of the wall.

[0087] Specifically, the support rod 52 is installed on one side of the base 51, and the support frame 53 is connected to the side of the support rod 52 away from the base 51. A buckle can be optionally set on the support frame 53, and the device body 1 is connected to the buckle by snapping, so as to install the support component 5 on the support component 5; of course, it is also possible to set screw holes on the support frame 53, set a mounting plate on the outside of the device body 1, and use bolts to connect the mounting plate on the device body 1 to the screw holes of the support frame 53.

[0088] The above-mentioned support rod 52 can be selected to include two tube bodies, one tube body is movably connected to the other tube body, so that the two tube bodies serve as telescopic joints, one tube body is connected to the base 51, and the other tube body is connected to the support frame 53. The two tube bodies can be moved relative to each other to make the support frame 53 close to or away from the base 51, thereby adjusting the height of the device body 1 on the support frame 53.

[0089] Of course, the support rod 52 can also be selected as a hydraulic telescopic rod, which includes a driving member and a telescopic end, and the telescopic end is movably connected to the driving member. The driving member uses hydraulic drive to move the telescopic end toward or away from the driving member, so that the matching structure of the driving member and the telescopic end serves as a telescopic joint, so that the driving member and the telescopic end can drive the support frame 53 to move closer to or away from the base 51.

[0090] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some embodiments, the support assembly 5 further includes a limiting plate 55 and a plurality of positioning rods 54, the plurality of positioning rods 54 are connected to the support frame 53, the limiting plate 55 is arranged on the side of the plurality of positioning rods 54 facing away from the support frame, and the limiting plate 55 is rotatably connected to the support frame 53; the device body 1 is provided with a handle 13, the handle 13 is provided with a plurality of positioning holes 131, and the plurality of positioning rods are correspondingly penetrated in the plurality of positioning holes 131, so that the device body 1 is installed on the support assembly 5. In this way, the positioning rods 54 can be used to pass through the positioning holes 131 to keep the relative position of the handle 13 and the support frame 53 stable, and the limiting plate 55 is arranged on the side of the positioning rod 54 away from the support frame 53, so that the limiting plate 55 can prevent the handle 13 from detaching from the end of the positioning rod 54 away from the support frame 53, so that the limiting plate 55 can limit the handle 13 connected to the positioning rod 54.

[0091] Specifically, a plurality of positioning rods 54 can be selected to be set on the same side of the support frame 53, and the plurality of positioning rods 54 are arranged at intervals in the horizontal direction. A plurality of through holes arranged at intervals in the horizontal direction are provided on the handle 13, and the through holes on the handle 13 serve as positioning holes 131; the plurality of positioning rods 54 are passed through the plurality of positioning holes 131 in a one-to-one manner, so that the relative position between the device body 1 and the support frame 53 remains stable.

[0092] Before the positioning rod 54 is inserted into the positioning hole 131, the limit plate 55 is rotated so that the limit plate 55 is offset from the end of the positioning rod 54 facing away from the support frame 53, so that the positioning rod 54 can be inserted into the positioning hole 131; after the positioning rod 54 is inserted into the positioning hole 131, the limit plate 55 is rotated to the side of the positioning rod 54 facing away from the support frame, so that the handle 13 cannot leave the positioning rod 54 from the end of the positioning rod 54 away from the support frame 53.

[0093] When the wall planing machine provided by the embodiment of the present disclosure is used, the limit plate 55 is rotated to stagger the end of the positioning rod 54 away from the support frame 53, and the multiple positioning rods 54 on the support frame 53 are passed through the multiple positioning holes 131, and then the limit plate 55 is rotated to a section of the positioning rod 54 away from the support frame 53, so that the handle 13 is installed on the support frame 53; the side of the flat grinding disc 2 away from the shell 11 is attached to the wall, and the driving device 6 drives the rotating shaft 22 to rotate, so that the rotating shaft 22 drives the flat grinding disc 2 to rotate to grind the wall, and the fan body 71 is started to discharge the gas in the installation space into the dust guide pipe 12 through the exhaust hole to form suction at the notch of the dust guide groove.

[0094] The clamping piece 412 of the protective sheet 41 is clamped and connected with the clamping groove 34, and multiple protective sheets 41 are installed at the edge of the mounting plate 3 by clamping, so that multiple protective sheets 41 are arranged around the plane grinding disc 2; the plane grinding disc 2 grinds the wall to generate grinding particles, and the grinding particles formed in the middle area of ​​the plane grinding disc 2 enter the collecting groove 35 through the dust guiding hole 21, and the grinding particles formed at the edge of the plane grinding disc 2 enter the first dust groove 421 of the protective sheet 41, and then the grinding particles enter the second dust groove 422 from the first dust groove 421, and the grinding particles in the second dust groove 422 enter the clamping groove 34 through the connecting hole 43, and the grinding particles in the clamping groove 34 enter the collecting groove 35; the grinding particles in the collecting groove 35 enter the installation space through the dust suction channel 31, and the grinding particles in the installation space are discharged from the installation space through the dust guiding pipe 12.

[0095] The support rod 52 is extended and retracted to move the support frame 53 in the vertical direction, so that the support frame 53 drives the device body 1 to move in the vertical direction, so that the flat grinding wheel 2 grinds the wall in the vertical direction. The grinding particles generated when the flat grinding wheel 2 grinds the wall pass through the dust guide groove and the dust guide hole 21 and the dust suction channel 31 into the installation space, thereby reducing the number of grinding particles diffused in the air and improving the user's working environment.

[0096] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0097] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wall planing machine, characterized in that: It comprises a device body (1), a fan assembly (7), a flat grinding disc (2) and a protective cover; The device body (1) has an installation space inside which the fan assembly (7) is installed, and the device body (1) is provided with an exhaust hole connected to the installation space; The protective cover comprises a mounting plate (3) and a protective plate portion (4); the mounting plate (3) is connected to the device body (1) and is provided with an assembly hole (33); the plane grinding disc (2) is arranged on a side of the mounting plate (3) facing away from the device body (1) and is rotatably connected to the device body (1) through the assembly hole (33); the plane grinding disc (2) is provided with a dust guide hole (21) arranged toward the device body (1); the protective plate portion (4) is arranged around the plane grinding disc (2) and is connected to the mounting plate (3); the plane grinding disc (2) is exposed on a side of the protective plate portion (4) facing away from the device body (1); The installation plate (3) is provided with a dust suction channel (31) communicating with the installation space, and the protective plate portion (4) is provided with a dust guide groove communicating with the dust suction channel (31).

2. The wall planing machine according to claim 1, characterized in that: The protective sheet portion (4) comprises a plurality of protective sheets (41), the plurality of protective sheets (41) being detachably connected to the edge of the mounting plate (3), and the plurality of protective sheets (41) being arranged along the circumference of the mounting plate (3) to surround the surface grinding plate (2); The side of the protective sheet (41) facing away from the device body (1) is recessed to form a sub-groove body (42); when the protective sheet (41) is connected to the mounting plate (3), the sub-groove body (42) is in communication with the dust suction channel (31).

3. The wall planing machine according to claim 1, characterized in that: The mounting disc (3) is coaxially arranged with the surface grinding disc (2), and the diameter of the mounting disc (3) is less than or equal to the diameter of the surface grinding disc (2).

4. The wall planing machine according to claim 2, characterized in that: The edge of the mounting plate (3) is provided with a plurality of clamping grooves (34), the plurality of clamping grooves (34) are arranged at intervals along the circumference of the mounting plate (3), and the clamping grooves (34) are communicated with the dust suction channel (31); The protective sheet (41) comprises a protective sheet body (411) and a clamping piece (412); the clamping piece (412) is arranged on one side of the protective sheet body (411); the side of the protective sheet body (411) facing away from the device body (1) is recessed to form a first dust groove (421); the clamping piece (412) is provided with a second dust groove (422); the clamping piece (412) is provided with a connecting hole (43) connected to the second dust groove (422); the first dust groove (421) is connected to the second dust groove (422); The clamping parts (412) of the plurality of protection sheets (41) are clamped and connected with the plurality of clamping grooves (34) in a one-to-one correspondence; when the clamping parts (412) are connected with the clamping grooves (34), the clamping grooves (34) are connected with the second dust grooves (422) through the connecting holes (43).

5. The wall planing machine according to claim 4, characterized in that: The side of the installation disc (3) facing the plane grinding disc (2) is recessed to form a collecting groove (35), the clamping groove (34) is connected to the collecting groove (35), and the dust suction channel (31) is connected to the collecting groove (35) and the installation space.

6. The wall planing machine according to any one of claims 1 to 5, characterized in that: The device body (1) comprises a housing (11) and a driving device (6); The installation space is formed inside the shell (11), the exhaust hole is arranged on the shell (11), a transmission hole is arranged on the shell (11), the installation plate (3) is connected to the shell (11) and is arranged opposite to the transmission hole, the drive device (6) is installed in the installation space, and the drive device (6) is arranged on a side of the fan assembly (7) close to the transmission hole; The assembly hole (33) is arranged opposite to the transmission hole, and a rotating shaft (22) is provided on the side of the surface grinding disc (2) facing the mounting disc (3), and the rotating shaft (22) passes through the transmission hole and the assembly hole (33) to be connected to the driving device.

7. The wall planing machine according to claim 6, characterized in that: The device body (1) further comprises a dust guide pipe (12), wherein the dust guide pipe (12) is connected to the outside of the shell (11), and the dust guide pipe (12) is communicated with the exhaust hole; And / or, the fan assembly (7) comprises a fan body (71) and a mounting bracket (72), the fan body (71) being arranged in the mounting space, a mounting hole communicating with the mounting space being provided on a side of the housing (11) facing away from the transmission hole, the mounting bracket (72) being installed in the mounting hole, and a portion of the mounting bracket (72) extending toward the mounting space to be connected with the fan body (71).

8. The wall planing machine according to claim 6, characterized in that: A connecting piece (32) is provided on the side of the mounting plate (3) facing the housing (11), a mounting groove is provided on the inner wall of the transmission hole, the connecting piece (32) is plug-connected to the mounting groove, and the dust suction channel (31) is formed inside the connecting piece (32).

9. The wall planing machine according to any one of claims 1 to 5, characterized in that: A support assembly (5) is provided on the bottom side of the device body (1), and the support assembly (5) comprises a base (51), a support rod (52) and a support frame (53); the device body (1) and the support frame (53) are detachably connected; the support frame (53) is connected to the base (51) via the support rod (52); the support rod (52) comprises a telescopic joint, and the telescopic joint is telescopic along the direction of the base (51) toward the support frame (53) to drive the support frame (53) to approach or move away from the base (51).

10. The wall planing machine according to claim 9, characterized in that: The support assembly (5) further comprises a limit plate (55) and a plurality of positioning rods (54), wherein the plurality of positioning rods (54) are connected to the support frame (53), the limit plate (55) is arranged on a side of the plurality of positioning rods (54) facing away from the support frame (53), and the limit plate (55) is rotatably connected to the support frame (53); The device body (1) is provided with a handle (13), the handle (13) is provided with a plurality of positioning holes (131), and a plurality of positioning rods are correspondingly inserted into the plurality of positioning holes (131) so that the device body (1) can be installed on the support assembly (5).

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