CN113021103B

CN113021103B - Foldable wall sander

Info

Publication number: CN113021103B
Application number: CN202110417530.6A
Authority: CN
Inventors: 张全昌
Original assignee: Yizhu Shenzhen Technology Co ltd
Current assignee: Yizhu Shenzhen Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2023-05-12
Anticipated expiration: 2041-04-19
Also published as: CN113021103A

Abstract

The invention relates to the field of buildings, in particular to a foldable wall surface sander, which comprises two front and rear symmetrical working boxes, wherein a working cavity with an opening on the right side is arranged in each working box, the front and rear inner walls of each working cavity are fixedly provided with a fixing box, a cavity is arranged in each fixing box, a driving mechanism for driving is arranged in each cavity of each fixing box, a polishing mechanism for polishing is arranged on the right side of each fixing box, a connecting mechanism is arranged between the front working box and the rear working box, and the device has the functions of plane unfolding and folding and can adapt to a wall surface and automatically adjust an air suction port.

Description

Foldable wall sander

Technical Field

The invention relates to the field of buildings, in particular to a foldable wall surface sander.

Background

In-process at the fitment of family, because need polish to the wall, be convenient for later stage is decorated, but current grinding device only can carry out single face and polish, and the dish of polishing is fixed with the connected mode between the axle, the fitment worker is inhomogeneous then can cause the wall to be polished out the dent with effort, and current polisher can't butt to the corner of a wall and polish, still need the manual work to the corner of a wall position polish, current polisher also can't adapt to concave wall, need polish many times to the reentrant corner of wall and external corner, and when can polish reentrant corner and external corner, the position of two face juncture of polishing can produce more right dust, need bigger suction, current wall polisher can't carry out suction change by oneself to the position that the dust gathers many.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a foldable and self-adjustable wall surface sander.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a collapsible wall sander, includes two workboxes of fore-and-aft symmetry, be equipped with right side open-ended working chamber in the workbox, the front and back inner wall in working chamber is fixed with fixed case, be equipped with the cavity in the fixed case, be equipped with in the cavity of fixed case and be used for driven actuating mechanism, the right side of fixed case is equipped with the grinding machanism that is used for polishing, two front and back be equipped with coupling mechanism between the workbox.

Preferably, the driving mechanism comprises a driving motor fixedly connected to the upper side inner wall of the working cavity, a fixed gear is rotationally connected to the right side of the driving motor, a spline sleeve rotationally connected to the right side inner wall of the cavity of the fixed box is arranged on the lower side of the fixed gear, a fixed toothed ring meshed with the fixed gear is fixedly arranged on the outer periphery of the spline sleeve, a main shaft extending left and right is connected to the inner periphery side wall of the spline sleeve in a spline manner, a spline groove is arranged on the left side of the main shaft, a rotating shaft is slidingly connected to the inner wall of the spline groove of the main shaft, a connecting spring is arranged between the rotating shaft and the inner wall of the spline groove of the main shaft, and two fan blades which are positioned on the left side and symmetrical to the main shaft are fixedly arranged on the rotating shaft.

Preferably, the polishing mechanism comprises a universal joint rotatably connected to the right side of the main shaft, a polishing plate is fixed to the right side of the universal joint, a grinding disc is fixed to the right side of the polishing plate, four arc grooves distributed in a circumferential array are formed in the polishing plate, the arc grooves penetrate through the polishing plate and the grinding disc, a rotating ring is rotatably connected to the right side inner wall of the working box, the rotating ring is rotatably connected to the fixed box, a plurality of through holes penetrating through the right side inner wall of the working box are formed in one side, close to the symmetry center, of the two working boxes, of the rotating ring, four through grooves distributed in a circumferential array are formed in the rotating ring, the width of each through groove of the lower side of the rotating ring is smaller than the width of the other three through grooves of the rotating ring, a fixed grid is fixed to the left side of each through groove of the rotating ring, two connecting grids symmetrical to the fixed grid are fixed to the left side of each through groove of the rotating ring, and heat dissipation members used for dissipating heat are arranged on the left side and the right side of the rotating ring.

Preferably, the heat dissipation member comprises a fixed pipe fixedly connected to the lower side of the fixed box, a connecting cavity communicated with the cavity of the fixed box is arranged in the fixed pipe, a filter screen is fixed to the right side of the horizontal section of the fixed pipe, the right side of the filter screen and the left side of the connecting grid are located on the same plane, and a pressure-bearing member is arranged between the working box and the polishing plate.

Preferably, the pressure-bearing member comprises a connecting ring rotatably connected to the right side of the working box, six hinge cylinders distributed in a circumferential array are hinged to the right side of the connecting ring, a fixed spring is arranged between the hinge cylinders and the right side of the connecting ring, a groove is arranged in each hinge cylinder, a hinge rod is slidably connected to the inner wall of the groove of each hinge cylinder, the hinge rod is hinged to the polishing plate, and a connecting spring is arranged between the hinge rod and the inner wall of the groove of each hinge cylinder.

Preferably, the connecting mechanism comprises a baffle plate which is slidably connected to the inner wall of the working cavity, a plurality of rubber tubes are fixed on the right side of the baffle plate and the right side of the working box, the baffle plate is located on the upper side and the lower side of the working box and on one side, far away from the two symmetric centers of the working box, two inclined grooves which are parallel to each other are formed in the inner wall of the working cavity, a connecting block is slidably connected to the inner wall of the inclined groove of the working cavity, the connecting block is fixedly connected to the baffle plate, two right-angle blocks which are symmetrical are arranged between one side, close to the symmetric center of the working box, of the baffle plate and the inner wall of the working cavity, the right-angle blocks are fixedly connected to the front side, the right-angle blocks are fixedly connected to the rear side of the working box, a fixing rod is arranged between the front side and the working box, a right-angle block is slidably connected to the inner wall of the sliding groove, the right-angle blocks are fixedly connected to the right side of the working box, and the right-angle blocks are fixedly connected to the right side of the working box.

The beneficial effects are that: the invention relates to a foldable wall surface sander, which is internally provided with two working boxes, wherein the two working boxes can be mutually parallel and mutually perpendicular, can be suitable for polishing a plane and an external corner of an internal corner, can enter a concave wall for polishing after being mutually perpendicular, can enable a rotating ring to rotate through a pull rope, enable a minimum groove of the rotating ring to face to the corner of the wall, and enable the corner to be the position with the most dust for dust removal.

When the device is jacked to the wall, can make the baffle shrink for one side butt wall of mill can polish right angle wall, and can polish in place, is connected between polishing board and six articulated bars and presents floating type, can adapt to the wall, can avoid causing the too dark phenomenon of polishing of one side to the wall.

The device can dispel the heat through axis of rotation and flabellum, through the effect of gravity for the rotation ring swings by oneself, and a minimum logical groove that makes the rotation ring is in the downside always, can inhale the working chamber with the dust that falls, and wobbling rotation ring makes the dust of scraping the filter screen surface through connection grid and fixed grid, and under the condition that rotation ring does not swing, fixed grid can not the butt filter screen, can prolong the life of filter screen.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the structure of A-A in fig. 1.

Fig. 3 is a schematic diagram of the structure of B-B in fig. 1.

Fig. 4 is a schematic view of the structure of C-C in fig. 3.

Fig. 5 is a schematic diagram of the structure of D-D in fig. 1.

Fig. 6 is a schematic diagram of the structure of E-E in fig. 5.

Fig. 7 is an enlarged schematic view of the structure F in fig. 1.

Fig. 8 is a schematic diagram of the structure of G-G in fig. 1.

In the figure, a working box 11, a working chamber 12, a baffle 13, a connecting block 14, a compression spring 15, a rubber tube 16, a polishing plate 17, a grinding disc 18, a hinging rod 19, a hinging cylinder 20, a connecting ring 21, a universal joint 22, a main shaft 23, a spline sleeve 24, a fixed toothed ring 25, a fixed gear 26, a driving motor 27, a one-way valve 28, a rotating shaft 29, a fan blade 30, a connecting spring 31, a fixed tube 32, a rotating ring 33, a fixed rod 34, an arc-shaped groove 35, a dust suction tube 36, a connecting grid 37, a fixed grid 38, a fixed spring 39, a connecting spring 40, a pull rope 41, a right-angle block 42, a sliding groove 43, a filter screen 44 and a fixed box 45.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

1-8, a foldable wall sander comprises two working boxes 11 which are symmetrical front and back, a working cavity 12 with a right side opening is arranged in each working box 11, a fixing box 45 is fixed on the front inner wall and the rear inner wall of each working cavity 12, a cavity is arranged in each fixing box 45, a driving mechanism for driving is arranged in each cavity of each fixing box 45, a polishing mechanism for polishing is arranged on the right side of each fixing box 45, and a connecting mechanism is arranged between the front working box 11 and the rear working box 11.

The driving mechanism comprises a driving motor 27 fixedly connected to the upper inner wall of the working cavity 12, a fixed gear 26 is rotationally connected to the right side of the driving motor 27, a spline sleeve 24 rotationally connected to the right inner wall of a cavity of a fixed box 45 is arranged on the lower side of the fixed gear 26, a fixed tooth ring 25 meshed with the fixed gear 26 is fixedly arranged on the outer periphery of the spline sleeve 24, a main shaft 23 extending leftwards and rightwards is in spline connection with the inner periphery side wall of the spline sleeve 24, a spline groove is arranged on the left side of the main shaft 23, a rotating shaft 29 is slidingly connected to the inner wall of the spline groove of the main shaft 23, the rotating shaft 29 is rotationally connected to the left inner wall of the cavity of the fixed box 45, a connecting spring 31 is arranged between the rotating shaft 29 and the inner wall of the spline groove of the main shaft 23, two blades 30 which are positioned on the left side of the main shaft 23 and are symmetrical are fixedly arranged on the rotating shaft 29, and a one-way valve 28 is fixedly arranged on the inclined inner wall of the cavity of the fixed box 45.

The polishing mechanism comprises a universal joint 22 rotatably connected to the right side of a main shaft 23, a polishing plate 17 is fixed to the right side of the universal joint 22, a polishing disc 18 is fixed to the right side of the polishing plate 17, four arc-shaped grooves 35 distributed in a circumferential array are arranged in the polishing plate 17, the arc-shaped grooves 35 penetrate through the polishing plate 17 and the polishing disc 18, a rotating ring 33 is rotatably connected to the right inner wall of the working box 11, the rotating ring 33 is rotatably connected to a fixed box 45, a plurality of through holes penetrating through the right inner wall of the working box 11 are formed in one side, close to the symmetry center of the two working boxes 11, of the rotating ring 33, four through grooves distributed in a circumferential array are formed in the rotating ring 33, the width of the through grooves on the lower side of the rotating ring 33 is smaller than the width of the rest three through grooves of the rotating ring 33, a fixed grid 38 is fixed to the left side of the through groove of each rotating ring 33, two connecting grids 37 symmetrical about the fixed grid 38 are fixed to the left side of the through groove of each rotating ring 33, and heat dissipation members for dissipating heat are arranged on the left side and right side of the rotating ring 33.

The heat dissipation component includes fixed pipe 32 of fixed connection in the downside of fixed box 45, is equipped with the connecting chamber of intercommunication in the cavity of fixed box 45 in the fixed pipe 32, and the right side of the horizontal segment of fixed pipe 32 is fixed with filter screen 44, and the right side of filter screen 44 is located the coplanar with the left side of connection grid 37, is equipped with the pressure-bearing component between work box 11 and the polishing board 17.

The pressure-bearing member includes the go-between 21 of rotating connection in the right side of work box 11, and the right side of go-between 21 articulates there are six articulated barrels 20 that circumference array distributes, is equipped with fixed spring 39 between articulated barrel 20 and the right side of go-between 21, is equipped with the recess in the articulated barrel 20, and the inner wall sliding connection of the recess of articulated barrel 20 has articulated pole 19, and articulated pole 19 articulates in polishing plate 17, is equipped with between the inner wall of the recess of articulated pole 19 and articulated barrel 20 and links up spring 40.

The connecting mechanism comprises a baffle 13 which is slidably connected to the inner wall of the working cavity 12, a plurality of rubber tubes 16 are fixedly arranged on the right side of the baffle 13 and the right side of the working box 11, the baffle 13 is positioned on the upper side and the lower side of the working box 11 and one side, far away from the symmetry centers of the two working boxes 11, of the working box 11, two inclined grooves which are parallel to each other are formed in the inner wall of the working cavity 12, a connecting block 14 is slidably connected to the inner wall of the inclined groove of the working cavity 12, the connecting block 14 is fixedly connected to the baffle 13, a compression spring 15 is arranged between one side, close to the symmetry center of the working box 11, of the baffle 13 and the inner wall of the working cavity 12, two symmetrical right-angle blocks 42 are arranged between the front working box 11 and the rear working box 11, the upper right-angle block 42 is fixedly connected to the front working box 11, the lower right-angle block 42 is fixedly connected to the rear working box 11, a fixed rod 34 is arranged between the front working box 11 and the rear working box 11, a right-side vertical section of the fixed rod 34 is provided with a sliding groove 43, the lower right-angle block 42 is slidably connected to the inner wall of the sliding groove 43, the upper right-angle block 42 is rotatably connected to the right vertical section of the fixed rod 34, a dust suction pipe 45 is fixedly connected to the left side of the dust suction pipe 45 between the lower side of the front working box 45 and the lower side 45 is fixedly connected to the dust suction pipe 45.

Working principle: initially, the driving motor 27 is in a closed state, the compression spring 15, the connection spring 31, the fixing spring 39, and the engagement spring 40 are in a compressed state, and the two sanding plates 17 are in a parallel state.

In operation, as shown in fig. 1, the left vertical section of the fixing rod 34 is held by hand, so that the right side of the grinding disc 18 is abutted against the wall, the driving motor 27 is started, the fixing gear 26 rotates clockwise in a right-hand manner, the spline sleeve 24 drives the fixing toothed ring 25 to rotate anticlockwise in a right-hand manner through meshing, meanwhile, the main shaft 23 rotates together, the main shaft 23 rotates the rotating shaft 29 together, the main shaft 23 rotates the grinding plate 17 and the grinding disc 18 anticlockwise in a right-hand manner through the universal joint 22, and the grinding disc 18 grinds the wall.

If the hand-held working machine is used, the constructor can apply force unevenly, the working box 11 can have an inclination angle relative to the wall surface, the polishing plate 17 and the grinding disc 18 are parallel to the wall surface at the moment, but the six hinging rods 19 and the hinging cylinder 20 can move relatively, as shown in fig. 4, the polishing plate 17 and the grinding disc 18 can abut against the wall surface, the six fixing springs 39 can be compressed, the connecting springs 31 can be compressed, when the working box 11 and the wall surface form a certain included angle, the part of the connecting springs 40 can be compressed, the part of the connecting springs 40 can be stretched, namely the elastic arrangement of the grinding disc 18 and the polishing plate 17 can avoid the condition that the wall surface is scratched due to uneven stress.

Because the grinding plate 17 and the grinding disc 18 rotate anticlockwise when viewed from the right, dust is generated when the right side of the grinding disc 18 contacts with the wall surface, the dust can move to the left side of the grinding plate 17 through the arc groove 35 and then enter the working cavity 12 through the through groove of the rotating ring 33, the dust thrown out by the grinding disc 18 can be blocked by the plurality of rubber tubes 16 encircling the right side of the working box 11, and the dust can enter the working cavity 12 through one side of the baffle 13, which is close to the symmetrical center of the working box 11, so that the dust is prevented from escaping.

When two working boxes 11 are held by hand and moved, the working boxes 11 are driven, at the moment, the rotating ring 33 swings relative to the working boxes 11, namely, the smallest through groove of the rotating ring 33 is always at the lowest side, dust is conveyed into the dust collection pipe 36 by suction force due to the fact that the dust collection pipe 36 is connected with the dust collection box placed on the ground, the flow rate of air flowing through the lowest through groove of the rotating ring 33 is the fastest, the generated suction force is larger, the dust falls under the action of gravity, the suction force of the lower side is the largest, the problem can be solved, meanwhile, the spindle 23 rotates to enable the rotating shaft 29 and the fan blades 30 to rotate together, suction force is generated by rotating the fan blades 30, the air enters the cavity of the fixed box 45 through the connecting cavity of the fixed pipe 32, the dust passing through the smallest through groove of the rotating ring 33 is filtered by the filter screen 44 and then enters the connecting cavity of the fixed pipe 32, the air enters the cavity of the fixed box 45 to enable the motor 27 to be cooled, the grid 33 is enabled to be enabled to fall under the action of the suction force of the fixed grid 38, and the grid 38 is enabled to be different from the grid 37 to be connected with the grid 38 in a short-time by swinging mode, and the grid 38 is enabled to be different from the grid 37 to be connected with the grid 38.

When the work box 11 is moved, the baffle 13 can be abutted to the wall surface, the baffle 13 can be compressed, the baffle 13 can enable the connecting block 14 to slide along the inner wall of the chute, the compression spring 15 is compressed, the plane of the baffle 13 at the moment can be aligned with the plane of the work box 11, and the grinding disc 18 and the grinding plate 17 at the moment can be abutted to the corner, namely, the thickness of the work box 11 can not influence grinding.

When the external corner of the wall needs to be polished, the upper right-angle block 42 needs to drive the working boxes 11 on the front side to rotate ninety degrees, and the two working boxes 11 are mutually perpendicular.

When the internal corner of the wall or the concave wall needs to be polished, the right-angle block 42 at the lower side slides downwards along the inner wall of the sliding groove 43, so that the working boxes 11 at the lower side move downwards together, then ninety degrees are turned over, so that the two working boxes 11 are mutually perpendicular, when the two working boxes 11 are mutually perpendicular, the pull rope 41 is stretched, the rotating ring 33 is rotated by the pull rope 41, namely, the through groove with the minimum width of the rotating ring 33 is close to the fixed rod 34, the dust at the junction of the internal corner and the external corner of the wall is the most, and the maximum suction force is generated at the junction of the wall corners, so that dust removal is facilitated.

At the end, the device is restored to the original state, and the drive motor 27 is turned off.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.

Claims

1. A foldable wall sander, which is characterized in that: the automatic polishing machine comprises two working boxes (11) which are symmetrical front and back, wherein a working cavity (12) with an opening on the right side is arranged in each working box (11), a fixed box (45) is fixed on the front and back inner walls of each working cavity (12), a cavity is arranged in each fixed box (45), a driving mechanism for driving is arranged in each cavity of each fixed box (45), a polishing mechanism for polishing is arranged on the right side of each fixed box (45), and a connecting mechanism is arranged between each working box (11); the driving mechanism comprises a driving motor (27) fixedly connected to the upper inner wall of the working cavity (12), a fixed gear (26) is rotationally connected to the right side of the driving motor (27), a spline sleeve (24) rotationally connected to the right inner wall of the cavity of the fixed box (45) is arranged on the lower side of the fixed gear (26), a fixed toothed ring (25) meshed with the fixed gear (26) is fixedly arranged on the outer periphery side of the spline sleeve (24), a main shaft (23) extending leftwards and rightwards is connected to the inner periphery side wall spline of the spline sleeve (24), spline grooves are formed in the left side of the main shaft (23), a rotating shaft (29) is slidingly connected to the inner wall of the spline grooves of the main shaft (23), a connecting spring (31) is arranged between the rotating shaft (29) and the inner wall of the spline grooves of the main shaft (23), two fan blades (30) which are positioned on the left side of the main shaft (23) and are symmetrical, and a one-way valve (28) is fixedly arranged on the inner wall of the cavity of the fixed box (45); the polishing mechanism comprises a universal joint (22) rotatably connected to the right side of the main shaft (23), a polishing plate (17) is fixed on the right side of the universal joint (22), a polishing disc (18) is fixed on the right side of the polishing plate (17), four arc-shaped grooves (35) distributed in a circumferential array are formed in the polishing plate (17), the arc-shaped grooves (35) penetrate through the polishing plate (17) and the polishing disc (18), a rotating ring (33) is rotatably connected to the right inner wall of the working box (11), the rotating ring (33) is rotatably connected to the fixed box (45), a plurality of through holes penetrating through the right inner wall of the working box (11) are formed in one side of the rotating ring (33) close to the symmetrical center of the two working boxes (11), four through grooves distributed in a circumferential array are formed in the rotating ring (33), the width of the through grooves on the lower side of the rotating ring (33) is smaller than the widths of the rest three through grooves of the rotating ring (33), and each through groove is provided with a heat dissipation member (37) which is symmetrically connected to the left side of the grid (33); the heat dissipation component comprises a fixed pipe (32) fixedly connected to the lower side of the fixed box (45), a connecting cavity communicated with the cavity of the fixed box (45) is arranged in the fixed pipe (32), a filter screen (44) is fixed on the right side of the horizontal section of the fixed pipe (32), the right side of the filter screen (44) and the left side of the connecting grid (37) are located on the same plane, and a pressure-bearing component is arranged between the working box (11) and the polishing plate (17); the pressure-bearing member comprises a connecting ring (21) rotationally connected to the right side of the working box (11), six articulated cylinders (20) distributed in a circumferential array are hinged to the right side of the connecting ring (21), a fixed spring (39) is arranged between each articulated cylinder (20) and the right side of the connecting ring (21), a groove is formed in each articulated cylinder (20), an articulated rod (19) is slidably connected to the inner wall of the groove of each articulated cylinder (20), the articulated rods (19) are articulated to the polishing plates (17), and a connecting spring (40) is arranged between each articulated rod (19) and the inner wall of the groove of each articulated cylinder (20); the connecting mechanism comprises a baffle plate (13) which is slidably connected to the inner wall of the working cavity (12), a plurality of rubber tubes (16) are fixed on the right side of the baffle plate (13) and the right side of the working box (11), the baffle plate (13) is positioned on the upper side and the lower side of the working box (11) and on one side, far away from the symmetry center of the two working boxes (11), of the working box (11), two chute grooves which are parallel to each other are arranged on the inner wall of the working cavity (12), a connecting block (14) is slidably connected to the inner wall of each chute of the working cavity (12), the connecting block (14) is fixedly connected to the baffle plate (13), and a compression spring (15) is arranged between one side, close to the symmetry center of the working box (11), of the baffle plate (13) and the inner wall of the working cavity (12); two right angle pieces (42) of symmetry are arranged between front and back two work boxes (11), the upside right angle pieces (42) are fixedly connected with the front side work boxes (11), the downside right angle pieces (42) are fixedly connected with the rear side work boxes (11), a fixed rod (34) is arranged between the front and back two work boxes (11), a sliding groove (43) is arranged on the right side vertical section of the fixed rod (34), the downside right angle pieces (42) are slidingly connected with the inner wall of the sliding groove (43), the upside right angle pieces (42) are rotationally connected with the right side vertical section of the fixed rod (34), a pull rope (41) is connected between the lower side of the fixed box (45) and the lower side of the fixed box (45), and a dust suction pipe (36) is fixed on the left side of each fixed box (45).