CN111255241A

CN111255241A - Corner floating device

Info

Publication number: CN111255241A
Application number: CN202010076249.6A
Authority: CN
Inventors: 郑英硕; 曲强; 刘季; 周冠华
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2020-06-09

Abstract

The invention discloses a corner floating device, which comprises: the device comprises a bottom plate, at least two floating mechanisms and an angle adjusting mechanism. The floating mechanism is arranged on the bottom plate in an inclination-adjustable manner and comprises a rotatable floating disc, and the end face of the floating disc forms a floating plane. The angle adjusting mechanism corresponds at least one floating mechanism and is arranged, the angle adjusting mechanism comprises an angle adjusting plate and an adjusting driving mechanism, the floating mechanism is installed on the angle adjusting plate, one end of the angle adjusting plate is connected to the bottom plate, and the other end of the angle adjusting plate forms an elastic end and is arranged at a distance from the bottom plate. The adjusting and driving mechanism is connected to the bottom plate, and the output end of the adjusting and driving mechanism is connected with the elastic end and drives the elastic end to change the distance relative to the bottom plate so as to adjust the inclination angle of the wiping plane relative to the horizontal plane. The corner trowelling device provided by the embodiment of the invention can move and trowel while changing the direction or adjusting the trowelling acting force by adjusting the inclination angle of the trowelling plane in the trowelling process, so that the trowelling quality and the trowelling efficiency are improved.

Description

Corner floating device

Technical Field

The invention belongs to the technical field of construction robots, and particularly relates to a corner trowelling device.

Background

In the related art, the edge of the concrete structure is usually trowelled by a worker using a trowelling tool. In order to prevent unevenness caused by trampling the surface of an unset concrete structure, workers need to wait for the surface of the concrete structure around the corner to be solidified when the corner is smeared, the construction working hours are prolonged, and the operation is inconvenient. In addition, the range of manual operation is limited, so that the trowelling efficiency is low, the trowelling precision is not high, the surface of the finally formed concrete structure is uneven, and the implementation process of the subsequent brick laying process or floor laying process is hindered.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the corner trowelling device provided by the invention has the advantages that the trowelling efficiency is high, the trowelling angle is adjustable, and the problems of low efficiency and poor precision in manual trowelling are solved.

According to an embodiment of the invention, the corner floating device comprises: a base plate; the trowelling mechanism is installed on the bottom plate in an inclination-adjustable mode and comprises a rotatable trowelling disc, and the end face of the trowelling disc is formed into a trowelling surface; the angle adjusting mechanism is arranged corresponding to at least one floating mechanism and comprises an angle adjusting plate and an adjusting driving mechanism, the floating mechanism is mounted on the angle adjusting plate, one end of the angle adjusting plate is connected to the bottom plate, and the other end of the angle adjusting plate forms an elastic end and is arranged at a distance from the bottom plate; the adjusting and driving mechanism is connected to the bottom plate, the output end of the adjusting and driving mechanism is connected to the elastic end, and the adjusting and driving mechanism drives the elastic end to change the distance relative to the bottom plate so as to adjust the inclination angle of the floating plane relative to the horizontal plane.

According to the corner floating device provided by the embodiment of the invention, by arranging at least two floating mechanisms with inclined angles, when the floating disc of the floating mechanism rotates, the floating disc can be used as a walking mechanism to enable the whole corner floating device to move on a floating plane, and floating treatment can be carried out on an area to be floating in the moving process, so that the corner floating device is convenient to move and the floating efficiency is improved. The angle adjusting plate is respectively connected with the adjusting driving mechanism and the floating mechanism, when the adjusting driving mechanism operates, the spacing distance between the elastic end of the angle adjusting plate and the bottom plate changes, so that the floating mechanism on the angle adjusting plate is driven to change in inclination relative to the bottom plate, finally, the floating plane changes in inclination relative to the horizontal plane, the floating plane is convenient to reverse to run after the inclination changes, the stress direction and the stress size during floating are convenient to adjust, and the floating quality and the floating efficiency are improved.

According to the corner trowelling device provided by the embodiment of the invention, the angle adjusting plate is a sheet metal part with elastic restoring force, and the thickness of the sheet metal part is 1.5-3 mm.

According to the corner floating device of one embodiment of the invention, the angle adjusting plate is arranged obliquely upwards from one end where the floating mechanism is installed to the direction close to the elastic end, the angle adjusting mechanism further comprises an elastic piece, the elastic piece is connected between the bottom plate and the elastic end, and the elastic piece is used for driving the elastic end to move towards the direction of contacting with the output end of the adjusting driving mechanism.

According to a further embodiment of the invention, the adjustment drive mechanism comprises: the steering engine is connected to the bottom plate, the output end of the steering engine is connected with the eccentric wheel and drives the eccentric wheel to rotate eccentrically, the eccentric wheel is in contact with the elastic end, and the elastic end is driven to change the distance relative to the bottom plate when the eccentric wheel rotates eccentrically.

According to the corner floating device provided by the embodiment of the invention, the floating disc is obliquely and upwards arranged along the direction close to the geometric center of the bottom plate, and the included angle between the floating plane and the horizontal plane is less than or equal to 30 degrees.

According to an embodiment of the invention, the corner floating device further comprises: the trowelling driving motor corresponds on the bottom plate and is provided with a mounting hole, the angle adjusting plate is arranged above the mounting hole, the trowelling driving motor is arranged on the angle adjusting plate, a motor shaft of the trowelling driving motor extends downwards from the mounting hole and is connected with the trowelling disc, and the trowelling driving motor rotates and drives the trowelling disc to rotate.

According to a further embodiment of the invention, the corner floating device further comprises a guide mechanism, the guide mechanism is arranged on the bottom plate and/or the floating mechanism, and the horizontal projection of at least one part of the guide mechanism is positioned outside the horizontal projection of the bottom plate and the floating mechanism, so that the guide mechanism contacts an obstacle before the bottom plate and the floating mechanism contact the obstacle when the obstacle is met, and the corner floating device can be turned.

Optionally, guiding mechanism includes band pulley mechanism, band pulley mechanism includes that two at least band pulleys are in with the cooperation hold-in range on the band pulley, the band pulley rotationally connects on the bottom plate, the hold-in range encircles the periphery setting of bottom plate, the interval is equipped with a plurality of tooth structures of dialling on the periphery of hold-in range.

Optionally, the guiding mechanism further comprises: the large gear is in meshing transmission with the small gear and is coaxially and fixedly connected with one belt wheel; the belt wheel mechanism further comprises a belt wheel driving mechanism, the output end of the belt wheel driving mechanism is connected with the small gear, and the belt wheel driving mechanism is connected to the bottom plate in a position-adjustable mode so as to adjust the meshing state of the small gear and the large gear.

Advantageously, the guide mechanism further comprises: the hollow shaft sleeves are arranged corresponding to the at least two belt wheels, one belt wheel is sleeved outside each hollow shaft sleeve, the hollow shaft sleeves are connected in the mounting holes, at least one hollow shaft sleeve is connected to the bottom plate in a position-adjustable mode so as to adjust the tensioning degree of the synchronous belt, and the floating mechanism is movably connected to the hollow shaft sleeves.

Optionally, the guiding mechanism further comprises: each bearing is sleeved on one hollow shaft sleeve, and one belt wheel is sleeved outside each bearing; the shaft end baffles are connected to one side of one bearing, so that the bearing is limited on the hollow shaft sleeve; the trowelling mechanism further comprises a connecting shaft sleeve and a pressing block, the middle of the trowelling disk is far away from the trowelling plane and extends to form a trowelling disk mounting shaft sleeve, the trowelling disk mounting shaft sleeve is connected with a motor shaft of the trowelling driving motor, the connecting shaft sleeve is sleeved outside the trowelling disk mounting shaft sleeve and the motor shaft, one end of the connecting shaft sleeve is abutted against the trowelling disk, and the other end of the connecting shaft sleeve is connected with the pressing block.

According to the corner floating device provided by the embodiment of the invention, the gyroscope is arranged on the floating disc to detect the inclination angle of the floating disc.

According to the corner floating device provided by the embodiment of the invention, at least one distance sensor is arranged on at least one side of the bottom plate so as to detect the distance of the bottom plate relative to an area to be floated.

According to the corner floating device provided by the embodiment of the invention, the bottom plate is provided with the handle and the electric control assembly, and the electric control assembly comprises an electric control system and an electric control box cover covering the electric control system.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a corner troweling device according to an embodiment of the present invention.

Fig. 2 is a bottom view of the corner troweling apparatus in the example of fig. 1.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.

Fig. 4 is a partially enlarged structural diagram of a region I in fig. 3.

Fig. 5 is a top view of the corner troweling apparatus in the example of fig. 1.

Fig. 6 is a schematic perspective view of a corner troweling device according to another embodiment of the present invention.

Fig. 7 is a perspective view of another angle of the corner troweling apparatus of fig. 6.

Fig. 8 is a bottom view of the corner troweling apparatus in the example of fig. 6.

Fig. 9 is a top view of the corner troweling device in the example of fig. 6.

Reference numerals:

a corner troweling device 100,

A bottom plate 1,

A floating mechanism 2,

A smearing plate 21, a smearing plane 211, patterns 212,

A floating driving motor 22, a motor shaft 221,

A connecting shaft sleeve 23, a pressing block 24, a plastering plate mounting shaft sleeve 25,

An angle adjusting mechanism 3,

An angle adjusting plate 31, an elastic end 31a,

An adjusting driving mechanism 32, a steering engine 321, an eccentric wheel 322,

A guide mechanism 4,

Pulley mechanism 41, pulley 411, timing belt 412, tooth-shifting structure 413, pulley driving mechanism 414,

A small gear 42, a large gear 43,

A hollow shaft sleeve 44, a bearing 45, a shaft end baffle 46,

A distance sensor 51, a sensor mounting plate 52, a mounting hanging plate 53,

A handle 6,

An electronic control assembly 7, an electronic control box cover 71 and an electronic control system 72.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The corner troweling apparatus 100 according to an embodiment of the present invention is described below with reference to the drawings of the specification.

A corner troweling apparatus 100 according to an embodiment of the present invention, as shown in fig. 1 and 6, includes: the device comprises a bottom plate 1, at least two floating mechanisms 2 and an angle adjusting mechanism 3.

Referring to fig. 3, the troweling mechanism 2 is installed on the base plate 1 with an adjustable inclination, the troweling mechanism 2 includes a rotatable troweling plate 21, and an end surface of the troweling plate 21 is formed as a troweling surface 211. The floating plane 211 is suitable for directly contacting the plane to be floated and floating the plane to be floated.

As shown in fig. 3 and 6, the angle adjusting mechanism 3 is disposed corresponding to at least one floating mechanism 2, the angle adjusting mechanism 3 includes an angle adjusting plate 31 and an adjusting driving mechanism 32, the floating mechanism 2 is mounted on the angle adjusting plate 31, one end of the angle adjusting plate 31 is connected to the bottom plate 1, and the other end of the angle adjusting plate 31 forms an elastic end 31a and is spaced apart from the bottom plate 1. The elastic end 31a has a certain elastic restoring force and has more degrees of freedom, the elastic end 31a changes its own state relative to the base plate 1 after being subjected to different external forces, and the elastic end 31a can restore to the original free state relative to the base plate 1 after the external force is removed, or the elastic end 31a can restore to the original state relative to the base plate 1 when the external force is reduced.

As shown in fig. 1 and 6, the adjusting driving mechanism 32 is connected to the bottom plate 1, an output end of the adjusting driving mechanism 32 is connected to the elastic end 31a, and the adjusting driving mechanism 32 drives the elastic end 31a to change a distance with respect to the bottom plate 1, so as to adjust an inclination angle of the troweling surface 211 with respect to a horizontal plane.

With the above structure, in the corner trowelling device 100 according to the embodiment of the present invention, by providing at least two trowelling mechanisms 2 having inclination angles, when the trowelling disk 21 of the trowelling mechanism 2 rotates, the trowelling disk can be used as a traveling mechanism to move the entire corner trowelling device 100 on the surface to be trowelled, and the trowelling process can be performed on the area to be trowelled during the movement process, so that the movement is convenient, and the trowelling efficiency is improved.

Angle adjusting plate 31 connects regulation actuating mechanism 32 and floating mechanism 2 respectively, when adjusting actuating mechanism 32 operation, angle adjusting plate 31's elasticity end 31a changes for bottom plate 1's interval distance, thereby make floating mechanism 2 on angle adjusting plate 31 change for bottom plate 1's inclination, the inclination of floating plate 21 also changes simultaneously, finally floating plate 211 changes for the inclination of horizontal plane, make things convenient for the corner floating device 100 switching-over to travel on the one hand after floating plate 211's inclination changes, floating plate's direction of stress and floating plate's stress size when on the other hand conveniently adjusts floating plate, improve floating plate 21's floating quality and floating efficiency.

The elastic end 31a of the present application has a certain elastic restoring force and the elastic end 31a is spaced apart from the bottom plate 1, when the output end of the adjusting driving mechanism 32 acts on the elastic end 31a, the elastic end 31a is elastically deformed and moves downward relative to the bottom plate 1, and when the output end of the adjusting driving mechanism 32 does not act on the elastic end 31a, the elastic end 31a can restore to the initial spacing state with the bottom plate 1, so as to facilitate the adjusting driving mechanism 32 to adjust and control the angle adjusting plate 31 again. Meanwhile, the elastic end 31a can also ensure that the output end of the adjusting driving mechanism 32 is always in contact with the elastic end 31a when acting, so that the stability and the reliability of adjustment are improved.

Compare in current manual work floating work, this application has greatly reduced workman's intensity of labour, and the construction operation continuity is high, has promoted floating efficiency of construction and construction quality.

Optionally, as shown in fig. 1, fig. 2 and fig. 6, the floating mechanism 2 in the embodiment of the present invention includes two floating mechanisms 2, the two floating mechanisms 2 are symmetrically disposed on the bottom plate 1, when the corner floating device 100 moves, the contact between the floating plane 211 and the plane to be floating is more stable, the movement is more stable, the bottom plate 1 is overall more horizontal, and the surface of the floating plane 211 after floating is more flat.

Optionally, the leveling mechanism 2 includes three leveling mechanisms 2, and the three leveling mechanisms 2 are linearly arranged on the bottom plate 1 at intervals.

Optionally, the angle adjusting plate 31 of the present invention is detachably connected to the bottom plate 1, and the detachable connection may be a bolt-nut connection or a snap connection. For example, in the specific example, a bolt hole is provided on each of one end of the angle adjusting plate 31 and the bottom plate 1, and one end of the angle adjusting plate 31 is connected to the bottom plate 1 by connecting a bolt and a nut in the bolt hole. For another example, a clamping hole is formed on the bottom plate 1, and one end of the angle adjusting plate 31 forms a clamping end to be matched in the clamping hole. In these examples, the angle-adjusting plate 31 is suitably formed as a folded plate, i.e. the angle-adjusting plate 31 itself is not planar, but has a plurality of faces forming angles with each other, the face of one end cooperating with the base plate 1 and the face of the elastic end 31a forming an angle therebetween.

Optionally, the angle adjusting plate 31 of the present invention is connected to the bottom plate 1 by a hinge, and a torsion spring is disposed between the end of the angle adjusting plate 31 and the bottom plate 1 for connecting, so that the angle adjusting plate 31 always forms a certain included angle with the bottom plate 1, and the elastic end 31a of the angle adjusting plate 31 is always spaced from the bottom plate 1.

Optionally, as shown in fig. 2 and 8, a pattern 212 is formed on the troweling plate 21 in a protruding manner, a troweling surface 211 is formed on the surface of the pattern 212, the pattern 212 increases the friction force of the troweling surface 211 when the troweling surface travels on an area to be trowelled, so that the troweling mechanism 2 is prevented from slipping when moving, and meanwhile, the pattern 212 also effectively adjusts the troweling force during troweling.

Optionally, the angle adjusting mechanisms 3 are arranged in one-to-one correspondence with the floating mechanisms 2, and each angle adjusting mechanism 3 controls and adjusts the inclination angle of one floating mechanism 2.

Optionally, the same angle adjusting mechanism 3 controls the two floating mechanisms 2 respectively to change the inclination angle, in these examples, the distance between the two floating mechanisms 2 suitable for being arranged is short, so that the output end of the angle adjusting mechanism 3 can act on the two floating mechanisms 2 at the same time.

In some embodiments of the present invention, as shown in fig. 3, 6 and 9, the angle adjusting plate 31 is a sheet metal part with elastic restoring force, and the thickness of the sheet metal part is 1.5-3 mm. When adopting the sheet metal component, the sheet metal component of first aspect has sufficient bearing strength, can bear troweling mechanism 2 on it, provides the installation face for troweling mechanism 2's installation for when angle adjusting plate 31 changes relative position for bottom plate 1, troweling mechanism 2 changes the inclination state along with angle adjusting plate 31, and then changes the inclination of swabbing dish 21 for the horizontal plane. The sheet metal part of the second aspect has sufficient elasticity to remain restored to the original state after being subjected to different acting forces at the output end of the adjusting driving mechanism 32, and the resetting and the zero resetting of the corner troweling device 100 are facilitated. The elastic end 31a of the sheet metal part in the third aspect is arranged at a distance from the bottom plate 1, and forms an included angle with the bottom plate 1 all the time or has a tilting trend relative to the bottom plate 1, that is, the floating plane 211 of the floating plate 21 always forms an included angle with the horizontal plane, so that the stressed area of the floating plate 21 is concentrated when the force is applied to the target area to be floated, the floating operation of the target area to be floated can be quickly realized, and the floating plate is particularly suitable for floating the area to be floated at the corner.

In other embodiments of the present invention, the angle adjusting plate 31 is disposed obliquely upward from the end where the troweling mechanism 2 is installed to the vicinity of the elastic end 31a, and the angle adjusting mechanism 3 further includes an elastic member (not shown) connected between the base plate 1 and the elastic end 31a for driving the elastic end 31a to move toward the direction of contact with the output end of the adjustment driving mechanism 32. The elastic end 31a can have elastic restoring force by providing an elastic member, in these examples, the angle adjusting plate 31 itself may not be limited by the choice of material, and may be a metal member, an alloy member, a wood plate member or a plastic member, which all can satisfy the requirement that the angle adjusting plate 31 rotates along the end connected with the bottom plate 1, and the elastic end 31a of the angle adjusting plate 31 can be spaced apart from the bottom plate 1, so that the angle adjusting plate 31 can be inclined relative to the bottom plate 1, and the spacing distance relative to the bottom plate 1 can be rapidly changed after being acted by the adjusting driving mechanism 32.

Optionally, the elastic member is a compression spring, the compression spring has a free length when the elastic end 31a is not acted by the output end of the adjustment driving mechanism 32, and the compression spring contacts the elastic end 31a and forms an elastic counterforce after the elastic end 31a is acted by the output end of the adjustment driving mechanism 32.

Optionally, the elastic member is always connected to the elastic end 31a and the bottom plate 1, the elastic member is always in a compressed state, the compression amount of the elastic member is smaller when the elastic member is not acted by the output end of the adjusting driving mechanism 32, and the compression amount of the elastic member is increased when the elastic member is acted by the output end of the adjusting driving mechanism 32, so as to form an elastic counter force.

Alternatively, the upper portion of the resilient member is made of a resiliently deformable material and is adapted to tend to return to its original length when subjected to pressure from the resilient end 31 a. The material that the deformable material rebounds can be a rubber body, a sponge body, and the like.

The corner trowelling device 100 provided by the embodiment of the invention can be used for trowelling the surface of an uncured concrete structure, and can also be used for trowelling the surface of a cement surface, an asphalt surface and putty.

In some embodiments of the present invention, as shown in fig. 3, 4 and 6, the adjustment drive mechanism 32 includes: steering wheel 321 and eccentric wheel 322, steering wheel 321 is connected on bottom plate 1, and the output of steering wheel 321 connects eccentric wheel 322 and drives eccentric wheel 322 eccentric rotation, and eccentric wheel 322 contacts with elastic end 31a, drives elastic end 31a when eccentric wheel 322 eccentric rotation and changes the distance for bottom plate 1. In these examples, the steering gear 321 and the eccentric wheel 322 are used to drive the elastic end 31a to change the state, the rotation angle of the steering gear 321 is accurately controlled, so that the rotation speed and the number of rotation turns when the steering gear 321 drives the eccentric wheel 322 to rotate are accurately controlled, and the contact state of the eccentric wheel 322 and the elastic end 31a and the degree of extrusion of the elastic end 31a are controllable. Since the eccentric wheel 322 is eccentrically rotatable, when the edge of the eccentric wheel 322 is brought into contact with the elastic end 31a at different positions, the elastic end 31a is pressed with different effects, so that the distance between the elastic ends 31a and the base plate 1 is changed. Because the position of the steering engine 321 relative to the bottom plate 1 is unchanged, and the external profile of the eccentric wheel 322 is unchanged, the steering engine 321 drives the eccentric wheel 322 to rotate for one circle in the operation process to generate a periodically changing extrusion force on the elastic end 31a, the spacing distance between the elastic end 31a and the bottom plate 1 is accurately controlled, and finally the inclination angle of the floating plane 211 relative to the horizontal plane is accurately regulated.

Compared with the adjusting driving mechanism 32 adopting an electric push rod, an air cylinder and the like, the adjusting driving mechanism 32 is simple and accurate to adjust, the connection and matching between the adjusting driving mechanism 32 and the elastic end 31a are simple, the stress is stable, and the controllability and the repeatability of the inclination angle adjustment of the wiping disc 21 can be kept in the long-term use process. Especially, in the adjusting process of at least two floating mechanisms 2, the working stability of the adjusting driving mechanism 32 can effectively ensure the floating working states of a plurality of floating mechanisms 2, and ensure the cooperative work of the plurality of floating mechanisms 2, the floating planes formed after the floating of the plurality of floating mechanisms 2 are flat, and the moving direction of the corner floating device 100 is controllable.

In some embodiments of the invention, the swabbing serving tray 21 is positioned obliquely upwards in a direction close to the geometric centre of the sole plate 1, as shown in fig. 3, 4 and 6. Such setting makes one side that the floating plate 21 keeps away from bottom plate 1 as the support for floating plate 21 is more stable to the support of corner floating device 100, has reduced the risk that corner floating device 100 takes place to topple over in the floating process.

Optionally, an included angle between the troweling surface 211 and the horizontal plane is less than or equal to 30 degrees. On the one hand, the floating mechanism 2 can be guaranteed to drive the whole machine to move as a running mechanism, on the other hand, appropriate floating force is generated when floating conveniently, and the polishing effect is improved. It can be understood that if the included angle between the floating plane 211 and the bottom plate 1 is too large, the contact surface between the floating plane 211 and the surface to be floating is too small, and the area where floating can be completed at one time is too small during floating, so that floating efficiency is low.

Optionally, as shown in fig. 1 and 6, the troweling mechanism 2 further includes: troweling drive motor 22 is equipped with the mounting hole corresponding to troweling mechanism 2 on bottom plate 1, and angle adjusting plate 31 is established above the mounting hole, and troweling drive motor 22 is installed on angle adjusting plate 31, and motor shaft 221 of troweling drive motor 22 stretches out downwards from the mounting hole and connects swabbing disc 21, and troweling drive motor 22 rotates and drives swabbing disc 21 rotatory. By the rotation of the trowelling drive motor 22, the stable and continuous rotational movement of the trowelling disk 21 and the smooth performance of the trowelling work can be ensured. Troweling drive motor 22 is conveniently electrically connected to electronic control system 72 to achieve precise rotation and control of troweling tray 21.

In some optional examples, the troweling drive motor 22 is coupled to the troweling tray 21, so that the troweling drive motor 22 is stably engaged with the troweling tray 21 and can reliably rotate.

In other optional examples, as shown in fig. 3 and 4, the troweling mechanism 2 further includes a connecting shaft sleeve 23 and a pressing block 24, the middle portion of the troweling tray 21 extends away from the troweling surface 211 to form a troweling tray mounting shaft sleeve 25, the troweling tray mounting shaft sleeve 25 is connected with a motor shaft 221 of the troweling drive motor 22, the connecting shaft sleeve 23 is sleeved outside the troweling tray mounting shaft sleeve 25 and the motor shaft 221, one end of the connecting shaft sleeve 23 abuts against the troweling tray 21, and the other end of the connecting shaft sleeve 23 is connected with the pressing block 24. After the pressing block 24 and the connecting shaft sleeve 23 are tightly held outside the motor shaft 221 and the trowelling disk mounting shaft sleeve 25, the motor shaft 221 and the trowelling disk mounting shaft sleeve 25 can be always connected, and the trowelling driving motor 22 is prevented from idling and not driving the trowelling disk 21 to rotate.

In some embodiments of the present invention, as shown in fig. 1, 3 and 6, the corner troweling apparatus 100 further includes a guiding mechanism 4, the guiding mechanism 4 is disposed on the bottom plate 1, and a horizontal projection of at least a part of the guiding mechanism 4 is located outside the horizontal projections of the bottom plate 1 and the troweling mechanism 2, so that the guiding mechanism 4 contacts an obstacle before the bottom plate 1 and the troweling mechanism 2 contact the obstacle when the obstacle is encountered, so as to achieve steering of the corner troweling apparatus 100.

Optionally, the guiding mechanism 4 is disposed on the bottom plate 1 and the troweling mechanism 2, in this case, the guiding mechanism 4 may be multiple and disposed on the bottom plate 1 and the troweling mechanism 2, respectively, and at least part of the different guiding mechanisms 4 is disposed at the edge of the bottom plate 1 and the troweling mechanism 2, respectively, so that at least part of the horizontal projection of the guiding mechanism 4 is located outside the horizontal projection of the bottom plate 1 and the troweling mechanism 2. Alternatively, the guiding means 4 comprises a plurality of parts, which are arranged on the base plate 1 and the troweling means 2, respectively, at least part of the guiding means 4 is arranged at the edge of the troweling means 2, and at least part of the guiding means 4 is arranged at the edge of the base plate 1, whereby at least part of the horizontal projection of the guiding means 4 is located outside the horizontal projection of the base plate 1 and the troweling means 2.

Optionally, the guiding mechanism 4 is arranged on the leveling mechanism 2, in which case the horizontal projection of the leveling mechanism 2 is adapted to be located outside the horizontal projection of the base plate 1, and at least part of the guiding mechanism 4 is arranged at the edge of the leveling mechanism 2, so that at least part of the horizontal projection of the guiding mechanism 4 is located outside the horizontal projection of the base plate 1 and the leveling mechanism 2.

Alternatively, as shown in fig. 1 and fig. 6, the guiding mechanism 4 includes a pulley mechanism 41, the pulley mechanism 41 includes at least two pulleys 411 and a timing belt 412 engaged with the pulleys 411, the pulleys 411 are rotatably connected to the base plate 1, the timing belt 412 is disposed around the periphery of the base plate 1, and a plurality of tooth shifting structures 413 are disposed at intervals on the periphery of the timing belt 412. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In these examples, the timing belt 412 provides sufficient area for the setting of the tooth-pulling structure 413, while the timing belt 412 has flexibility to withstand certain impacts and provide a cushioning effect during steering to reduce the impact force on the edge-trim apparatus 100 during impact. This application makes the whole machine focus of the floating device of corner 100 lower more stable through setting up band pulley mechanism 41, effectively prevents floating device of corner 100 from toppling at the in-process of work.

A plurality of tooth structures 413 of dialling set up in the periphery of hold-in range 412, and hold-in range 412 encircles the periphery setting of bottom plate 1, the tooth structure 413 of dialling that finally forms is located the periphery of the floating device 100 of corner, when the floating device 100 of corner meets the barrier, it contacts the barrier at first to dial tooth structure 413, use the contact of dialling tooth structure 413 and barrier as the fulcrum, the floating device 100 of corner can realize turning to fast, be favorable to floating device 100 of corner to carry out floating treatment to the corner region when the regional removal of corner and switching-over, and effectively prevent floating device 100 of corner from toppling over. The tooth-pulling structure 413 arranged at the periphery of the synchronous belt 412 at intervals enables the corner trowelling device 100 to have a plurality of supporting points when turning, and the turning is continuous. The obstacles can be steel bars, columns, walls, molds and the like.

Advantageously, the edge of the base plate 1 extends downwards and is formed with a synchronous belt guide plate, the two belt pulleys 411 are rotatably arranged on the base plate 1, the central axes of the two belt pulleys 411 are perpendicular to the base plate 1, the synchronous belt guide plate is located between the two belt pulleys 411, the synchronous belt 412 is tensioned on the two belt pulleys 411, and the middle part of the synchronous belt 412 is separated, blocked and supported by the synchronous belt guide plate, so that the synchronous belt 412 is prevented from being embedded into an obstacle in the transmission process.

Optionally, as shown in fig. 3, the guide mechanism 4 further includes: a small gear 42 and a large gear 43, wherein the large gear 43 is in meshed transmission with the small gear 42, and the large gear 43 is coaxially and fixedly connected with one belt wheel 411. As shown in fig. 3 and 6, the pulley mechanism 41 further includes a pulley driving mechanism 414, and an output end of the pulley driving mechanism 414 is connected to the pinion 42. Driven by the belt driving mechanism 414, the large gear 43 can be driven by the small gear 42, and the large gear 43 drives the belt wheel 411 and the synchronous belt 412 to rotate, in these examples, when the corner troweling device 100 moves to touch an obstacle, the synchronous belt 412 rotates and drives the shifting tooth structure 413 to move relative to the obstacle, so that the corner troweling device 100 runs in another dimension, and the rotation of the bottom troweling tray 21 is matched, which is enough to make the corner troweling device 100 turn quickly near the obstacle. And the gear meshing transmission is adopted, so that the rotation speed of the synchronous belt is more controllable, and larger torque can be transmitted.

Optionally, the pulley drive 414 is a dc gear motor, which facilitates power supply and speed control.

Optionally, the pulley driving mechanism 414 is a servo motor, which is conveniently connected to the electronic control system 72 and accurately controls the number of revolutions.

Optionally, the pulley driving mechanism 414 is coupled with the pinion gear 42, so as to ensure the reliability of the connection and prevent the pinion gear 42 from being disengaged from the pulley driving mechanism 414 and the transmission from being failed.

Advantageously, as shown in fig. 5 and 9, a pulley driving mechanism 414 is connected to the base plate 1 in a position-adjustable manner to adjust the meshing state of the small gear 42 and the large gear 43 and achieve a better meshing effect. The position adjustable mode can be achieved by arranging a kidney-shaped hole on the bottom plate 1, adjusting the installation position of the driving mechanism 414 relative to the kidney-shaped hole, and connecting and fixing the driving mechanism by adopting connecting pieces such as bolts and the like.

Optionally, the pulley driving mechanism 414 is connected to the pulley mounting base, the pulley mounting base includes a mounting base body and a pulley driving mounting plate, one of the mounting base body and the pulley driving mounting plate is provided with a waist-shaped hole, the other is provided with a round hole, the mounting base body is connected to the bottom plate 1, the pulley driving mechanism 414 is connected to the pulley driving mounting plate, when the pulley driving mounting plate is adjusted relative to the mounting base body and fixed by a connecting member (such as a bolt), the mounting position of the pulley driving mechanism 414 is adjusted relative to the bottom plate 1, and finally, the center distance between the pinion 42 and the bull gear 43 is adjusted.

In some embodiments of the invention, as shown in fig. 3 and 4, the guide mechanism 4 further comprises: the plurality of hollow shaft sleeves 44 are arranged corresponding to the at least two belt wheels 411, one belt wheel 411 is sleeved outside each hollow shaft sleeve 44, the hollow shaft sleeves 44 are connected in the mounting holes, the at least one hollow shaft sleeve 44 is connected to the bottom plate 1 in a position-adjustable mode to adjust the tensioning degree of the synchronous belt 412, and the troweling mechanism 2 is movably connected to the inside of each hollow shaft sleeve 44. When the distance between the hollow shaft sleeves 44 is adjusted, the synchronous belt 412 can be tensioned on the belt wheels 411, so that the continuous and stable transmission of the synchronous belt 412 is ensured; meanwhile, the position of the floating mechanism 2 in the hollow shaft sleeve 44 relative to the bottom plate 1 can be adjusted, so that the floating plate 21 of the floating mechanism 2 is ensured to be in a better floating position, and the floating plane 211 is ensured to effectively apply force to an area to be floating when floating.

Alternatively, the hollow sleeve 44 may be adjustably attached to the base plate 1 in the form of: one of the bottom plate 1 and the hollow shaft sleeve 44 is provided with a kidney-shaped connecting hole, the other of the bottom plate 1 and the hollow shaft sleeve 44 is provided with a round mounting hole, and the hollow shaft sleeve 44 is detachably connected with the bottom plate 1 through a connecting piece.

In a specific example, an adjustable hollow sleeve 44 is selectively arranged according to the driven or driving state of the belt wheel 411, as shown in fig. 3, a small gear 42 connected with a belt wheel driving mechanism 414 is meshed with a large gear 43, the large gear 43 is coaxially and synchronously driven with one belt wheel 411, and the belt wheel 411 on the other side is not connected with the gear, so that the hollow sleeve 44 matched with the belt wheel 411 on the one side can be designed to be adjustable in position and convenient to adjust.

Optionally, as shown in fig. 3 and 4, the guide mechanism 4 further includes: a plurality of bearings 45, each bearing 45 is sleeved on a hollow shaft sleeve 44, and a belt wheel 411 is sleeved outside each bearing 45. The pulley 411 is stably and rapidly rotated with respect to the hollow boss 44 by providing the bearing 45. In some specific examples, to achieve the coaxial rotation of the large gear 43 and the pulley 411, the pulley 411 and the large gear 43 are sleeved on one of the bearings 45.

Optionally, as shown in fig. 3 and 4, the guide mechanism 4 further includes: and each shaft end baffle 46 is connected to one side of one bearing 45, so that the bearing 45 is limited on the hollow shaft sleeve 44, the bearing 45 is effectively prevented from sliding out of the bottom end of the hollow shaft sleeve 44, and the guiding stability and the transmission effectiveness of the guiding mechanism 4 are ensured.

The guide mechanism 4 according to the embodiment of the present invention is not limited to the above-described pulley mechanism 41, and in other examples, a chain and sprocket mechanism may be used instead of the pulley mechanism 41, and is not particularly limited herein.

In some embodiments of the present invention, a gyroscope is provided on the swashplate 21 to detect the tilt angle of the swashplate 21 (not shown). The real-time inclination angle of the wiping disk 21 can be directly read through the manual observation gyroscope and adjusted according to the requirement. The data of the gyroscope is automatically read and analyzed through the electric control system 72, and the inclination angle of the swabbing disc 21 can be monitored and adjusted in real time.

In some embodiments of the invention, as shown in fig. 6 to 9, at least one side of the base plate 1 is provided with at least one distance sensor 51 to detect the distance of the base plate 1 relative to the area to be troweled. But through setting up relative position and the relative distance of the floating plane of the floating device 100 of real-time detection corner and the regional of treating floating to through control system 72 control, and wait to float the higher point in the region repeatedly floating of measuring, promote final floating effect, guarantee holistic floating quality.

Optionally, as shown in fig. 6 and 8, one side of the bottom plate 1 extends horizontally and is provided with a sensor mounting plate 52, a plurality of mounting hanging plates 53 are arranged on the sensor mounting plate 52 at intervals, and the distance sensor 51 is connected to the mounting hanging plates 53. In these embodiments, the distance sensor 51 is easily deployed, which greatly saves installation time and labor.

Advantageously, the horizontal projection of the mounting hanging plate 53 is located outside the horizontal projection of the bottom plate 1, the mounting hanging plate 53 extends vertically and downwards along the sensor mounting plate 52, and the mounting hole mounting distance sensor 51 is arranged on the mounting hanging plate 53.

Alternatively, the distance sensor 51 may be an optical distance sensor, an infrared distance sensor, an ultrasonic distance sensor.

In some embodiments of the invention, as shown in fig. 1 and 6, the base plate 1 is provided with a handle 6. The corner troweling device can be conveniently and rapidly moved to the target position by hands by lifting the handle 6.

Optionally, the two sides of the bottom plate 1 are respectively provided with a handle 6, so that a hand can apply force uniformly, the force of the corner trowelling device 100 is balanced, and the trowelling mechanism 2 is kept in place as much as possible in the moving process.

In some embodiments of the present invention, as shown in fig. 3 and 6, the electric control assembly 7 is disposed on the base plate 1, and the electric control assembly 7 includes an electric control system 72 and an electric control box cover 71 covering the electric control system 72. The electric control system 72 can be electrically connected to each driving mechanism, sensor, etc. (specifically, the floating driving motor 22, the steering engine 321, the pulley driving mechanism 414, and the distance sensor 51) to perform electric control processing, so that the corner floating device 100 can integrally implement automatic floating operation. The electrical control principle of the electrical control system 72 is well known in the art and will not be described herein.

Optionally, the electronic control system 72 includes a single chip, which is beneficial to realizing the intellectualization and automation of the corner troweling device 100.

The specific structure of the corner troweling apparatus 100 according to the specific embodiment of the present invention will be described below with reference to the drawings attached to the specification. The embodiments of the present invention may be all embodiments in which a plurality of the aforementioned technical solutions are combined, and are not limited to the following specific embodiments.

Example 1

A corner trimming device 100, as shown in figure 1, comprising: the device comprises a bottom plate 1, at least two floating mechanisms 2 and an angle adjusting mechanism 3. As shown in fig. 3, the troweling mechanism 2 is installed on the base plate 1 with adjustable inclination, the troweling mechanism 2 includes a rotatable troweling tray 21 and a troweling drive motor 22, the troweling drive motor 22 drives the troweling tray 21 to rotate, and the end surface of the troweling tray 21 forms a troweling surface 211. The angle adjusting mechanism 3 corresponds the setting of at least one floating mechanism 2, and angle adjusting mechanism 3 includes angle adjusting plate 31, adjusts actuating mechanism 32, installs floating mechanism 2 on the angle adjusting plate 31, and the bolt and nut connection is passed through to the one end of angle adjusting plate 31 on bottom plate 1, and angle adjusting plate 31 wholly is L shape, and the other end of angle adjusting plate 31 forms elasticity end 31a and separates the setting with bottom plate 1. As shown in fig. 6, the adjusting driving mechanism 32 is connected to the bottom plate 1, an output end of the adjusting driving mechanism 32 is connected to the elastic end 31a, and the adjusting driving mechanism 32 drives the elastic end 31a to change a distance with respect to the bottom plate 1, so as to adjust an inclination angle of the troweling surface 211 with respect to a horizontal plane.

Example 2

A corner trimming device 100, as shown in figure 6, comprising: the device comprises a bottom plate 1, two floating mechanisms 2, an angle adjusting mechanism 3 and a distance sensor 51. As shown in fig. 7, two troweling mechanisms 2 are mounted on the base plate 1 with adjustable inclination. As shown in fig. 6, the troweling mechanism 2 includes a rotatable troweling tray 21 and a troweling drive motor 22, the troweling drive motor 22 drives the troweling 21 to rotate, and as shown in fig. 8, the end surface of the troweling tray 21 is formed as a troweling surface 211.

As shown in fig. 6, each angle adjusting mechanism 3 corresponds to one floating mechanism 2, the angle adjusting mechanism 3 includes an angle adjusting plate 31 and an adjusting driving mechanism 32, the floating mechanism 2 is installed on the angle adjusting plate 31, one end of the angle adjusting plate 31 is connected to the slot of the bottom plate 1 through a clamping plate, and the other end of the angle adjusting plate 31 forms an elastic end 31a and is spaced apart from the bottom plate 1. As shown in fig. 6, the adjusting driving mechanism 32 includes a steering gear 321 and an eccentric wheel 322, the steering gear 321 is connected to the bottom plate 1, an output end of the steering gear 321 is connected to the eccentric wheel 322 and drives the eccentric wheel 322 to eccentrically rotate, the eccentric wheel 322 is in contact with the elastic end 31a, and the eccentric wheel 322 drives the elastic end 31a to change a distance relative to the bottom plate 1 when eccentrically rotating.

As shown in fig. 6 and 8, a sensor mounting plate 52 is horizontally extended and mounted on one side of the base plate 1, a plurality of mounting hanging plates 53 are spaced apart from the sensor mounting plate 52, a distance sensor 51 is connected to the mounting hanging plates 53, and the distance sensor 51 can detect an inclination angle of the base plate 1 with respect to a horizontal plane.

Example 3

A corner floating device 100 is different from embodiment 1 in that, as shown in FIG. 3, an angle adjusting plate 31 is a sheet metal part with elastic restoring force, and the thickness of the sheet metal part is 1.5-3 mm.

Example 4

A corner floating device 100 is different from embodiment 3 in that an angle adjusting plate 31 is a common plate, a compression spring is arranged between an elastic end 31a of the angle adjusting plate 31 and a bottom plate 1, the compression spring has a free length when the elastic end 31a is not acted by an output end of an adjusting driving mechanism 32, and the compression spring is contacted with the elastic end 31a to form an elastic counter force after the elastic end 31a is acted by the output end of the adjusting driving mechanism 32.

Example 5

A corner floating device 100, which is different from embodiment 1, further comprises a guide mechanism 4. As shown in fig. 1, the guiding mechanism 4 includes a pulley mechanism 41, the pulley mechanism 41 includes two pulleys 411, and a timing belt 412, a pinion 42, a gearwheel 43 and a pulley driving mechanism 414 fitted on the pulleys 411, the pulleys 411 are rotatably connected to the base plate 1, the timing belt 412 is disposed around the periphery of the base plate 1, and a plurality of tooth shifting structures 413 are disposed at intervals on the periphery of the timing belt 412. The large gear 43 is in meshed transmission with the small gear 42, and the large gear 43 is coaxially and fixedly connected with one belt wheel 411. The output of pulley drive 414 is connected to pinion 42.

Example 6

A corner floating device 100 is different from the embodiment 5 in that a belt wheel mechanism 41 in a guide mechanism 4 is replaced by a chain and chain wheel mechanism.

Example 7

A corner floating device 100, which is different from embodiment 2, further includes a gyroscope, and a gyroscope is provided on the floating plate 21 to detect an inclination angle of the floating plate 21.

Example 8

A corner floating device 100, which is different from embodiment 7, further includes an electric control assembly 7, as shown in fig. 6, the electric control assembly 7 is disposed on the bottom plate 1. The electronic control assembly 7 comprises an electronic control system 72 and an electronic control box cover 71 covering the electronic control system 72. The electric control system comprises a single chip microcomputer which is used for controlling the inclination angle of the wiping disc 21.

Example 9

A corner troweling apparatus 100 differs from that of embodiment 1 in that a pattern 212 is formed on a troweling tray 21 in a protruding manner.

The corner floating device 100 according to the embodiment of the present invention can control the inclination angle and the rotation speed of the floating plate 21 during floating operation, so that the whole machine can perform low-speed movement or high-speed floating operation. In the embodiment provided with the guide mechanism 4, the overturning can be prevented by the guide mechanism 4 steering quickly in the vicinity of the obstacle. In the embodiment with the control system 72, the opening and closing of the driving mechanisms and the executing state of the executing mechanism can be completed through the electric control system.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Two troweling mechanisms 2 are shown in fig. 1 and 6 for illustrative purposes, but it is obvious that one of ordinary skill after reading the above technical solutions would understand that the solutions apply to other numbers of troweling mechanisms 2, which also fall within the scope of the present invention.

Other constructions of the corner trowelling device 100 according to embodiments of the present invention, such as the principle of elastic recovery and the principle of electrical control, are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A corner trowelling device, comprising:

a base plate;

the trowelling mechanism is installed on the bottom plate in an inclination-adjustable mode and comprises a rotatable trowelling disc, and the end face of the trowelling disc is formed into a trowelling surface;

the angle adjusting mechanism is arranged corresponding to at least one floating mechanism and comprises an angle adjusting plate and an adjusting driving mechanism, the floating mechanism is mounted on the angle adjusting plate, one end of the angle adjusting plate is connected to the bottom plate, and the other end of the angle adjusting plate forms an elastic end and is arranged at a distance from the bottom plate;

the adjusting and driving mechanism is connected to the bottom plate, the output end of the adjusting and driving mechanism is connected to the elastic end, and the adjusting and driving mechanism drives the elastic end to change the distance relative to the bottom plate so as to adjust the inclination angle of the floating plane relative to the horizontal plane.

2. A corner floating device according to claim 1, wherein the angle adjusting plate is a sheet metal part with elastic restoring force, and the thickness of the sheet metal part is 1.5-3 mm.

3. A corner troweling apparatus according to claim 1, wherein the angle adjusting plate is disposed obliquely upward from an end where the troweling mechanism is installed to a direction near the elastic end, and the angle adjusting mechanism further includes an elastic member connected between the bottom plate and the elastic end, the elastic member being configured to drive the elastic end to move toward a direction of contact with an output end of the adjustment driving mechanism.

4. A corner trowelling device according to claim 2 or 3, wherein the adjustment drive mechanism includes: the steering engine is connected to the bottom plate, the output end of the steering engine is connected with the eccentric wheel and drives the eccentric wheel to rotate eccentrically, the eccentric wheel is in contact with the elastic end, and the elastic end is driven to change the distance relative to the bottom plate when the eccentric wheel rotates eccentrically.

5. A corner floating device according to claim 1, wherein the floating disc is arranged obliquely upwards along the direction close to the geometric center of the bottom plate, and the included angle between the floating plane and the horizontal plane is less than or equal to 30 degrees.

6. A corner trowelling device according to claim 1, wherein the trowelling mechanism further includes: the trowelling driving motor corresponds on the bottom plate and is provided with a mounting hole, the angle adjusting plate is arranged above the mounting hole, the trowelling driving motor is arranged on the angle adjusting plate, a motor shaft of the trowelling driving motor extends downwards from the mounting hole and is connected with the trowelling disc, and the trowelling driving motor rotates and drives the trowelling disc to rotate.

7. A corner floating device according to claim 6, further comprising a guide mechanism, the guide mechanism being provided on the base plate and/or the floating mechanism, the horizontal projection of at least a part of the guide mechanism being outside the horizontal projection of the base plate and the floating mechanism, so that the guide mechanism contacts an obstacle before the base plate and the floating mechanism contact the obstacle when the obstacle is met, thereby achieving the turning of the corner floating device.

8. A corner floating device according to claim 7, wherein the guide mechanism comprises a pulley mechanism, the pulley mechanism comprises at least two pulleys and a synchronous belt fitted on the pulleys, the pulleys are rotatably connected to the bottom plate, the synchronous belt is arranged around the periphery of the bottom plate, and a plurality of tooth shifting structures are arranged at intervals on the periphery of the synchronous belt.

9. A corner trowelling device according to claim 8, wherein the guide mechanism further includes:

the large gear is in meshing transmission with the small gear and is coaxially and fixedly connected with one belt wheel;

the belt wheel mechanism further comprises a belt wheel driving mechanism, the output end of the belt wheel driving mechanism is connected with the small gear, and the belt wheel driving mechanism is connected to the bottom plate in a position-adjustable mode so as to adjust the meshing state of the small gear and the large gear.

10. A corner trowelling device according to claim 8, wherein the guide mechanism further includes: the hollow shaft sleeves are arranged corresponding to the at least two belt wheels, one belt wheel is sleeved outside each hollow shaft sleeve, the hollow shaft sleeves are connected in the mounting holes, at least one hollow shaft sleeve is connected to the bottom plate in a position-adjustable mode so as to adjust the tensioning degree of the synchronous belt, and the floating mechanism is movably connected to the hollow shaft sleeves.

11. A corner trowelling device according to claim 10,

the guide mechanism further includes: each bearing is sleeved on one hollow shaft sleeve, and one belt wheel is sleeved outside each bearing; the shaft end baffles are connected to one side of one bearing, so that the bearing is limited on the hollow shaft sleeve;

the trowelling mechanism further comprises a connecting shaft sleeve and a pressing block, the middle of the trowelling disk is far away from the trowelling plane and extends to form a trowelling disk mounting shaft sleeve, the trowelling disk mounting shaft sleeve is connected with a motor shaft of the trowelling driving motor, the connecting shaft sleeve is sleeved outside the trowelling disk mounting shaft sleeve and the motor shaft, one end of the connecting shaft sleeve is abutted against the trowelling disk, and the other end of the connecting shaft sleeve is connected with the pressing block.

12. A corner troweling device according to claim 1, characterized in that a gyroscope is arranged on the troweling disc to detect the inclination angle of the troweling disc.

13. A corner trowelling device according to claim 1, wherein at least one side of the base panel is provided with at least one distance sensor to detect the distance of the base panel relative to an area to be trowelled.

14. A corner floating device according to claim 1, wherein a handle and an electric control assembly are arranged on the bottom plate, and the electric control assembly comprises an electric control system and an electric control box cover covering the electric control system.