CN213946840U - Concrete floating device - Google Patents

Abstract

The utility model relates to a concrete floating device belongs to the concrete component field, and this application includes base, lifting unit, rotates piece, floating plate and rail roof beam, the rail roof beam is located treats floating concrete top, the base slides and sets up on the rail roof beam, be provided with the first driving piece that the drive base slided on the base, lifting unit sets up on the base, it sets up in the lifting unit bottom to rotate the piece, the lifting unit drive rotates the piece and goes up and down, floating plate sets up in the bottom that rotates the piece, it rotates to rotate the floating plate of drive. This application has the effect that improves work efficiency, alleviates staff intensity of labour.

Description

Concrete floating device

Technical Field

The application relates to the field of concrete members, in particular to a concrete floating device.

Background

The precast concrete member is a concrete part which is processed in advance in a factory and can be directly transported to a construction site for installation. Common precast concrete elements are concrete downcomers and concrete slabs.

In the preparation process of the concrete slab, firstly, concrete mortar is injected into a mold on a bearing platform, then the surface of the concrete mortar is smoothed, then the concrete mortar is conveyed for maintenance, and after the concrete mortar is solidified, the mold is removed, so that the concrete slab can be obtained.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: at present, in the concrete slab prefabricating process, the floating work before solidification is mostly realized manually, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to improve work efficiency, this application provides a concrete floating device.

The application provides a concrete floating device adopts following technical scheme:

the utility model provides a concrete floating device, includes base, lifting unit, rotates piece, floating plate and rail roof beam, the rail roof beam is located treats floating concrete top, the base slides and sets up on the rail roof beam, be provided with the first driving piece that the drive base slided on the base, lifting unit sets up on the base, it sets up in the lifting unit bottom to rotate the piece, lifting unit drive rotates the piece and goes up and down, floating plate sets up in the bottom that rotates the piece, it rotates the floating plate rotation of piece drive.

By adopting the technical scheme, the gravity of the base, the lifting assembly, the rotating member and the trowelling plate is applied to the rail beam, and the trowelling plate is suspended above the concrete; the lifting assembly is lifted along the vertical direction, so that the plastering plate is driven to move up and down, and the plastering plate is contacted with the upper surface of the concrete; then the rotating piece can drive the floating plate to rotate, and meanwhile, the first driving piece drives the base to slide, so that the floating plate can float the upper surface of the concrete; therefore, the concrete trowelling machine can replace manual work to trowel the upper surface of concrete, and effectively improves the working efficiency of trowelling work.

Preferably, lifting unit includes lift seat, lifter, first gear and first motor, the lift seat is fixed to be set up on the base, the lifter slides in vertical direction with the lift seat and is connected, first motor is fixed to be set up on the lift seat, first gear connection is at the drive end of first motor, first gear meshes with the lateral wall of lifter, rotate the piece setting in the bottom of lifter.

Through adopting above-mentioned technical scheme, the first gear of first motor drive rotates, first gear and lifter meshing to drive the lifter and slide on the seat that goes up and down, rotate the piece and can reciprocate along with the lifter, thereby can drive the removal of plastering a plate.

Preferably, lifting unit includes fixing base, carriage release lever, drive ring and second motor, the fixing base is fixed to be set up on the base, the spout that link up along vertical direction is seted up to the fixing base, the carriage release lever slides through being connected with the spout cell wall and slides with the fixing base and be connected, the drive ring rotates with the upper surface of fixing base and is connected, the interior rampart of drive ring and the perisporium threaded connection of carriage release lever, second motor fixed mounting is at the upper surface of fixing base, the second gear is installed to the drive end of second motor, rotate the piece setting in the bottom of carriage release lever.

By adopting the technical scheme, the second motor drives the second gear to rotate, and the second gear is meshed with the outer annular wall of the driving ring, so that the driving ring is driven to rotate; and because the movable rod only moves along the vertical direction, the driving ring and the movable rod can rotate in a threaded manner, the movable rod can move up and down by means of threaded feeding, and the rotating piece can move up and down along with the movable rod, so that the trowel can be driven to move. Thereby realizing the adjustment of the distance between the trowel and the upper surface of the concrete.

Preferably, the rail beam comprises a first cross beam and a second cross beam which are parallel to each other, the first cross beam and the second cross beam are located on the same horizontal plane, one end of the base is connected with the first cross beam in a sliding mode, one end, far away from the first cross beam, of the base is connected with the second cross beam in a sliding mode, and the first driving piece drives the base to slide on the first cross beam and the second cross beam.

Through adopting above-mentioned technical scheme, under the concrete along the condition with first crossbeam vertically direction removal, the base slides and sets up on first crossbeam and second crossbeam to through first driving piece reciprocal sliding on first crossbeam and second crossbeam, thereby drive the floating plate and slide at the concrete upper surface, consequently the floating plate reciprocates at the concrete upper surface along first crossbeam and slides, and the floating plate can be fully floating to the concrete upper surface.

Preferably, the rail beam further comprises a first longitudinal beam and a second longitudinal beam which are parallel to each other, the first longitudinal beam and the second longitudinal beam are located on the same horizontal plane, the same side end of the first cross beam and the second cross beam is connected with the upper surface of the first longitudinal beam in a sliding mode, one end, far away from the first longitudinal beam, of the first cross beam and the second cross beam is connected with the upper surface of the second longitudinal beam in a sliding mode, the first cross beam is perpendicular to the first longitudinal beam, a second driving piece is arranged on the first cross beam and the second cross beam, and the second driving piece drives the first cross beam and the second cross beam to slide.

By adopting the technical scheme, under the condition that the concrete does not move, the second driving piece drives the first cross beam and the second cross beam to slide along the first longitudinal beam, and the trowelling plate slides along the first cross beam, so that the trowelling plate trowels the upper surface of the concrete along the direction of the first longitudinal beam; simultaneously, the floating plate can also slide along first crossbeam direction to floating the concrete upper surface along first crossbeam direction, consequently, two-way cooperation, floating plate can be to the concrete upper surface fully floating.

Preferably, the one end fixed mounting that rotates the piece and keep away from the board of wiping has a threaded rod, the lifting unit bottom is equipped with even board, even board runs through and is provided with the through-hole, the both ends threaded connection that the threaded rod passed the through-hole has fixation nut.

Through adopting above-mentioned technical scheme, realized rotating the piece and being connected with dismantling of lifting unit, can maintain the rotating piece and change when rotating the piece damage, reduce because of rotating the condition emergence that the piece damage leads to trowelling machine work efficiency to descend.

Preferably, the rotating end of the rotating part is provided with a detachable part, and the rotating part is detachably connected with the trowel plate through the detachable part.

By adopting the technical scheme, a new trowelling plate can be replaced when the trowelling plate is damaged, so that the condition that the working efficiency of the trowelling machine is reduced due to the damage of the trowelling plate is reduced; meanwhile, the used plastering plate is convenient to clean so as to be used next time.

Preferably, the detachable part comprises a butt joint rod and a butt joint seat, the butt joint seat is fixedly arranged on the upper surface of the floating plate, a groove is formed in the upper surface of the butt joint seat, a limiting hole penetrating through the groove is formed in the peripheral wall of the butt joint seat in a relatively-opened mode, one end of the butt joint rod is fixedly connected with the rotating end of the rotating part, one end, far away from the rotating part, of the butt joint rod is inserted into the groove, a positioning hole corresponding to the limiting hole is formed in the peripheral wall of the butt joint rod 331, a screw rod is inserted into the limiting hole and the positioning hole, the two ends of the screw rod extend out of the butt joint seat, and butt joint.

By adopting the technical scheme, the butt joint rod is inserted into the groove of the butt joint seat, and the groove wall of the groove can limit the butt joint rod along the horizontal direction; then pass spacing hole and locating hole with the screw rod and install the butt joint nut, can follow vertical direction and realize the spacing to the extension rod on the butt joint seat to two-way spacing has realized the firm dismantlement of being connected between floating plate and the rotation piece.

Preferably, the outer wall of the rotating part is provided with a protective cover, the protective cover covers the periphery of the driving end of the rotating part, and the protective cover is positioned above the smearing plate.

Through adopting above-mentioned technical scheme, the safety cover can reduce the drive end that rotates the piece and take place because of the condition that is damaged by the striking of foreign object.

Preferably, the bottom of safety cover is provided with the anticollision ring, the anticollision ring is located the top of swabbing board and is located the outside of swabbing board horizontal end.

By adopting the technical scheme, the situation that the edge of the smearing plate is scratched to an external object to be damaged can be reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the concrete trowelling device, the upper surface of the concrete is trowelled by the concrete trowelling device instead of manpower, so that the working efficiency is improved, and the labor intensity of workers is reduced;

2. the rail beam is arranged, comprises a first cross beam, a second cross beam, a first longitudinal beam and a second longitudinal beam, and slides on the rail beam through the base, so that the base can drive the trowelling plate to move in two directions, and the technical effect of trowelling the surface of concrete under the condition that the concrete moves or does not move is achieved;

3. this application has set up removable, can dismantle the connection with the rotation piece with the floating plate through removable, has the removable technological effect of floating plate of the floating device of concrete.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present application.

FIG. 2 is a cross-sectional view of a structure embodying embodiments of the present application.

Fig. 3 is a schematic structural diagram of a lifting assembly according to an embodiment of the present disclosure.

FIG. 4 is a cross-sectional view of a via structure embodying the present invention.

Fig. 5 is an exploded view of a detachable member structure according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a lifting assembly according to a second embodiment of the present application.

Fig. 7 is a cross-sectional view of a second embodiment of the lifting assembly of the present application.

Description of reference numerals: 1. a base; 11. a first driving member; 2. a lifting assembly; 21. a lifting seat; 22. a lifting rod; 23. a first gear; 24. a first motor; 25. a fixed seat; 251. a chute; 26. a travel bar; 27. a drive ring; 28. a second motor; 281. a second gear; 29. connecting plates; 291. a through hole; 3. a rotating member; 31. a threaded rod; 32. fixing a nut; 33. a detachable member; 331. a docking rod; 3311. positioning holes; 332. a docking station; 3321. a groove; 3322. a limiting hole; 34. a screw; 35. butting nuts; 36. a protective cover; 361. an anti-collision ring; 4. smearing the board; 5. a rail beam; 51. a first cross member; 52. a second cross member; 53. a first stringer; 54. a second stringer; 55. a second driving member.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses concrete floating device.

Example one

Referring to fig. 1, the concrete floating device includes a base 1, a lifting assembly 2, a rotation member 3, a trowel 4, and a rail beam 5. The rail beam 5 in the embodiment comprises a first cross beam 51 and a second cross beam 52, wherein the first cross beam 51 and the second cross beam 52 are erected above concrete in parallel, and the first cross beam 51 and the second cross beam 52 are on the same horizontal plane; one end of the base 1 is arranged on the first cross beam 51 in a sliding manner, one end of the base 1, which is far away from the first cross beam 51, is arranged on the second cross beam 52 in a sliding manner, a first driving piece 11 is fixedly arranged on the lower surface of the base 1, the first driving piece 11 is an electric trolley, and the first driving piece 11 can drive the base 1 to slide on the first cross beam 51 and the second cross beam 52; the lifting assembly 2 is fixedly arranged on the base 1, the rotating piece 3 is a motor, the rotating piece 3 is detachably arranged at the lower end of the lifting assembly 2, and the lifting assembly 2 can drive the rotating piece 3 to lift along the vertical direction; the rotation end of rotating piece 3 can be dismantled with floating plate 4 and be connected, rotates 3 drive floating plate 4 and rotates.

Referring to fig. 1, concrete is laid on a bearing platform, the bearing platform moves along a direction perpendicular to a first cross beam 51, and a lifting assembly 2 is started to control a rotating member 3 to move downwards, so that a floating plate 4 moves downwards along with the rotating member 3 and abuts against the upper surface of the concrete; starting the rotating piece 3, wherein the rotating piece 3 drives the floating plate 4 to rotate; meanwhile, the first driving piece 11 is started, the base 1 is controlled to slide back and forth along the first cross beam 51, so that the trowel plate 4 slides back and forth on the upper surface of the concrete, and the trowel plate 4 can sufficiently trowel the upper surface of the concrete.

With reference to fig. 1, to further expand the scope of application of the present application, the rail beam 5 further comprises a first longitudinal beam 53 and a second longitudinal beam 54; the first longitudinal beam 53 and the second longitudinal beam 54 are erected at two sides of the concrete to be trowelled in parallel, and the first longitudinal beam 53 and the second longitudinal beam 54 are on the same horizontal plane and are positioned above the surface of the concrete; the same side ends of the first cross beam 51 and the second cross beam 52 are arranged on the first longitudinal beam 53 in a sliding mode, one ends, far away from the first longitudinal beam 53, of the first cross beam 51 and the second cross beam 52 are arranged on the second longitudinal beam 54 in a sliding mode, the lower surfaces of the first cross beam 51 and the second cross beam 52 are fixedly provided with second driving pieces 55, each second driving piece 55 is an electric trolley, each second driving piece 55 can drive the first cross beam 51 to slide on the first longitudinal beam 53 and the second longitudinal beam 54, and meanwhile, each second driving piece 55 also drives the second cross beam 52 to slide on the first longitudinal beam 53 and the second longitudinal beam 54. The first cross beam 51, the second cross beam 52, the first longitudinal beam 53 and the second longitudinal beam 54 provide a moving base for the movement of the troweling plate 4, under the condition that concrete cannot move, the second driving piece 55 can drive the first cross beam 51 to slide on the first longitudinal beam 53 and the second longitudinal beam 54 in a reciprocating mode, so that the base 1 slides along the first cross beam 51, the troweling plate 4 can slide along the length direction of the first longitudinal beam 53, meanwhile, the troweling plate 4 can slide along the length direction of the first cross beam 51 under the driving of the first driving piece 11, and therefore the troweling plate 4 can fully trowel the concrete surface.

Referring to fig. 2 and 3, the rotating member 3 and the trowel 4 are lifted by the lifting assembly 2. The lifting assembly 2 includes a lifting base 21, a lifting rod 22, a first gear 23 and a first motor 24. The lifting seat 21 is integrally connected to the base 1; the lifting rod 22 is arranged in the lifting seat 21 in a sliding manner, two ends of the lifting rod extend out of the upper surface and the lower surface of the lifting seat 21, and the peripheral wall of the lifting rod 22 is connected with the lifting seat 21 in a sliding manner; the first motor 24 is fixedly arranged in the lifting seat 21, the first gear 23 is fixedly arranged at the driving end of the first motor 24, the side wall of the lifting rod 22 is provided with teeth corresponding to the first gear 23, and the first gear 23 is meshed with the side wall of the lifting rod 22. The first motor 24 drives the first gear 23 to rotate, and the first gear 23 can drive the lifting rod 22 to slide up and down in the lifting seat 21 because the first gear 23 is meshed with the lifting rod 22 and the lifting rod 22 can slide in the lifting seat 21.

Referring to fig. 2 and 4, in order to make the rotating member 3 detachable and convenient for maintenance and replacement, the lower end of the lifting rod 22 is integrally connected with a square connecting plate 29, and four corners of the connecting plate 29 are provided with a through hole 291; the one end welding that rotates piece 3 and keep away from spatula 4 has four threaded rods 31, and through-hole 291 is passed to the upper end of four threaded rods 31, and all installs fixation nut 32 in the upper and lower both sides of even board 29 to rotate piece 3 and lifter 22 and form relatively fixed detachable connection. The fixed nut 32 is screwed, and the rotating piece 3 is relatively fixed at the lower end of the lifting rod 22; the rotor 3 can be removed by unscrewing the fixing nut 32.

Referring to fig. 4 and 5, in order to make the trowel 4 detachable for cleaning and replacement, a detachable member 33 is installed at the lower end of the rotating member 3, and the rotating member 3 is detachably connected with the trowel 4 through the detachable member 33. The detachable member 33 includes a docking rod 331 and a docking holder 332; the driving end of the rotating piece 3 is integrally connected with the butt joint rod 331; the plastering plate 4 is a circular plate, the butt joint seat 332 is integrally connected with the upper surface of the plastering plate 4, the upper surface of the butt joint seat 332 is provided with a groove 3321, and the peripheral wall of the butt joint seat 332 is relatively provided with a limiting hole 3322 penetrating through the groove 3321; the butt joint rod 331 is inserted in the groove 3321 of the butt joint seat 332, the butt joint rod 331 is provided with a positioning hole 3311 corresponding to the limiting hole 3322, a screw 34 is inserted in the positioning hole 3311 and the limiting hole 3322, two ends of the screw 34 extend out of the peripheral wall of the butt joint seat 332, and the butt joint nuts 35 are installed at two ends of the screw 34, so that the floating plate 4 and the rotating piece 3 form a relatively stable detachable structure. Inserting the abutting rod 331 into the groove 3321 to make the position-limiting hole 3322 opposite to the position-positioning hole 3311, inserting the screw 34 between the position-limiting hole 3322 and the position-positioning hole 3311, screwing the abutting nut 35, and fixing the trowel plate 4 at the lower end of the rotating member 3; when the smearing plate 4 needs to be disassembled, the butt joint nut 35 is screwed off, and the screw rod 34 is pulled out, so that the smearing plate 4 can be disassembled to be cleaned or replaced.

Referring to fig. 4, in order to protect the rotating member 3 and the troweling plate 4, the lower end of the outer wall of the rotating member 3 is integrally connected with a protective cover 36, the protective cover 36 is a cover in a shape of an inverted bucket formed by a support rod and circular rings with sequentially reduced radius, the protective cover 36 is covered on the outer side of the drive end of the rotating member 3, the lower end of the protective cover 36 is integrally connected with an anti-collision ring 361, the anti-collision ring 361 is a circular ring with a radius larger than the radius of the troweling plate 4, and the anti-collision ring 361 is located on the outer. If there is the striking of foreign object in the process of rotating piece 3 sliding, foreign object can strike safety cover 36 and crashproof ring 361 earlier, consequently can protect the junction of rotating piece 3 and trowel 4, can also protect the edge of trowel 4.

The implementation principle of the first embodiment is as follows:

when the concrete moves in a direction perpendicular to the first beam 51: starting the first motor 24, controlling the first motor 24 to drive the first gear 23 to rotate, driving the lifting rod 22 to slide downwards in the lifting seat 21 by the first gear 23, and moving the trowelling plate 4 downwards along with the lifting rod 22; adjusting the height of the trowel 4 to enable the lower surface of the trowel 4 to abut against the upper surface of the concrete, then starting the rotating piece 3, and driving the trowel 4 to rotate by the rotating piece 3; meanwhile, the first driving piece 11 is started, the first driving piece 11 is controlled to drive the base 1 to slide on the first cross beam 51 and the second cross beam 52 in a reciprocating mode, so that the troweling plate 4 moves back and forth along with the base 1, and the troweling plate 4 fully screeds the upper surface of the concrete; after the trowelling is finished, the first motor 24 is controlled to drive the first gear 23 to rotate, the first gear 23 drives the lifting rod 22 to slide upwards, the trowelling plate 4 is far away from the concrete surface, the rotating part 3 and the first driving part 11 are closed, and the trowelling plate 4 stops rotating.

When the concrete cannot move: after the troweling plate 4 is abutted to the upper surface of the concrete, the first motor 24 is started to drive the troweling plate 4 to rotate, the first driving piece 11 and the second driving piece 55 are started, the first driving piece 11 can drive the base 1 to slide along the length direction of the first cross beam 51, and therefore the troweling plate 4 moves along the first cross beam 51; the second driving piece 55 drives the first cross beam 51 and the second cross beam 52 to slide back and forth along the first longitudinal beam 53, so that the trowel plate 4 moves along the first longitudinal beam 53; therefore, the troweling plate 4 moves in two directions, and the concrete surface can be fully smoothed.

Example two

Referring to fig. 6 and 7, the present embodiment is different from the first embodiment in that the lifting assembly 2 includes a fixed base 25, a moving rod 26, a driving ring 27, and a second motor 28. The fixed seat 25 is integrally connected on the base 1; a sliding groove 251 in the vertical direction is formed in the fixed seat 25, the moving rod 26 is inserted into the sliding groove 251, two ends of the moving rod 26 extend out of the upper end and the lower end of the fixed seat 25, the moving rod 26 slides in the sliding groove 251 to move up and down in the fixed seat 25, and the connecting plate 29 is integrally connected with the lower end of the moving rod 26; the driving ring 27 is rotatably connected to the upper surface of the fixed seat 25, and the inner annular wall of the driving ring 27 is in threaded connection with the peripheral wall of the movable rod 26; the second motor 28 is fixedly arranged on the upper surface of the fixed seat 25, the driving end of the second motor 28 is fixedly arranged with a second gear 281, the outer ring wall of the driving ring 27 is provided with teeth corresponding to the second gear 281, and the second gear 281 is meshed with the outer ring wall of the driving ring 27. The second motor 28 drives the second gear 281 to rotate, and since the second gear 281 is engaged with the outer annular wall of the driving ring 27, the driving ring 27 is rotated by the second gear 281, and the driving ring 27 screw-feeds the moving rod 26 through the thread of the inner annular wall, so that the moving rod 26 can move up and down.

The implementation principle of the embodiment 2 is as follows: the second motor 28 is started, the second motor 28 is controlled to drive the second gear 281 to rotate, so that the driving ring 27 is driven to rotate, the driving ring 27 drives the moving rod 26 to move downwards, and the length of the downward extension of the moving rod 26 is controlled, so that the trowel plate 4 abuts on the upper surface of the concrete.

After the troweling is finished, the second motor 28 is controlled to drive the second gear 281 to rotate reversely and drive the driving ring 27 to rotate reversely, the driving ring 27 drives the moving rod 26 to move upwards, and the trowel plate 4 is far away from the upper surface of the concrete.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A concrete floating device is characterized in that: including base (1), lifting unit (2), rotation piece (3), floating plate (4) and rail roof beam (5), rail roof beam (5) are located treats floating concrete top, base (1) slide and set up on rail roof beam (5), be provided with first driving piece (11) that drive base (1) slided on base (1), lifting unit (2) set up on base (1), it sets up in lifting unit (2) bottom to rotate piece (3), lifting unit (2) drive rotates piece (3) and goes up and down, floating plate (4) set up the bottom that rotates piece (3), it rotates to rotate piece (3) drive floating plate (4).

2. A concrete troweling apparatus according to claim 1, characterized in that: lifting unit (2) are including lift seat (21), lifter (22), first gear (23) and first motor (24), lift seat (21) are fixed to be set up on base (1), lifter (22) slide in vertical direction with lift seat (21) and are connected, first motor (24) are fixed to be set up on lift seat (21), the drive end at first motor (24) is connected in first gear (23), the lateral wall meshing of first gear (23) and lifter (22), rotate piece (3) and set up the bottom at lifter (22).

3. A concrete troweling apparatus according to claim 1, characterized in that: the lifting component (2) comprises a fixed seat (25), a movable rod (26), a driving ring (27) and a second motor (28), the fixed seat (25) is fixedly arranged on the base (1), the fixed seat (25) is provided with a sliding chute (251) which is through along the vertical direction, the moving rod (26) is connected with the fixed seat (25) in a sliding way through the sliding connection with the groove wall of the sliding groove (251), the driving ring (27) is rotationally connected with the upper surface of the fixed seat (25), the inner ring wall of the driving ring (27) is in threaded connection with the peripheral wall of the movable rod (26), the second motor (28) is fixedly arranged on the upper surface of the fixed seat (25), the driving end of the second motor (28) is provided with a second gear (281), the second gear (281) is in meshed connection with the outer ring wall of the driving ring (27), and the rotating piece (3) is arranged at the bottom end of the moving rod (26).

4. A concrete troweling apparatus according to claim 1, characterized in that: the rail beam (5) comprises a first cross beam (51) and a second cross beam (52) which are parallel to each other, the first cross beam (51) and the second cross beam (52) are in the same horizontal plane, one end of the base (1) is connected with the first cross beam (51) in a sliding mode, one end, far away from the first cross beam (51), of the base (1) is connected with the second cross beam (52) in a sliding mode, and the first driving piece (11) drives the base (1) to slide on the first cross beam (51) and the second cross beam (52).

5. A concrete screeding device according to claim 4, wherein: the rail beam (5) further comprises a first longitudinal beam (53) and a second longitudinal beam (54) which are parallel to each other, the first longitudinal beam (53) and the second longitudinal beam (54) are in the same horizontal plane, the same side end of the first cross beam (51) and the second cross beam (52) is in sliding connection with the upper surface of the first longitudinal beam (53), one end, far away from the first longitudinal beam (53), of the first cross beam (51) and the second cross beam (52) is in sliding connection with the upper surface of the second longitudinal beam (54), the first cross beam (51) is perpendicular to the first longitudinal beam (53), a second driving piece (55) is arranged on the first cross beam (51) and the second cross beam (52), and the second driving piece (55) drives the first cross beam (51) and the second cross beam (52) to slide.

6. A concrete troweling apparatus according to claim 1, characterized in that: rotate piece (3) and keep away from one end fixed mounting of swabbing board (4) have threaded rod (31), lifting unit (2) bottom is equipped with even board (29), even board (29) run through and are provided with through-hole (291), the both ends threaded connection that through-hole (291) were passed in threaded rod (31) has fixation nut (32).

7. A concrete troweling apparatus according to claim 1, characterized in that: the rotation end of rotating piece (3) is installed and can be dismantled piece (33), it can dismantle with floating board (4) through can dismantling piece (33) and be connected to rotate piece (3).

8. A concrete troweling apparatus according to claim 7, characterized in that: the detachable part (33) comprises a butt joint rod (331) and a butt joint seat (332), the butt joint seat (332) is fixedly arranged on the upper surface of the floating plate (4), a groove (3321) is formed in the upper surface of the butt joint seat (332), a limiting hole (3322) penetrating through the groove (3321) is formed in the peripheral wall of the butt joint seat (332) in a relatively opened mode, one end of the butt joint rod (331) is fixedly connected with the rotating end of the rotating part (3), one end, far away from the rotating part (3), of the butt joint rod (331) is inserted into the groove (3321), a positioning hole (3311) corresponding to the limiting hole (3322) is formed in the peripheral wall of the butt joint rod (331), a screw rod (34) is inserted into the limiting hole (3322) and the positioning hole (3311), two ends of the screw rod (34) extend out of the butt joint seat (332), and butt joint nuts (35) are in threaded connection with two ends of the screw rod (34).

9. A concrete troweling apparatus according to claim 1, characterized in that: the outer wall of rotating piece (3) is equipped with safety cover (36), the week side at rotating piece (3) drive end is established to safety cover (36) cover, safety cover (36) are located trowelling plate (4) top.

10. A concrete troweling apparatus according to claim 9, characterized in that: the bottom of safety cover (36) is provided with anticollision ring (361), anticollision ring (361) are located the top of swabbing board (4) and are located the outside of swabbing board (4) horizontal end.

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