CN111119459B

CN111119459B - Cement leveling device

Info

Publication number: CN111119459B
Application number: CN201911249266.9A
Authority: CN
Inventors: 王勇; 刘丽娟
Original assignee: 王勇
Current assignee: Henan Maoan Construction Engineering Co.,Ltd.
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2021-11-05
Anticipated expiration: 2039-12-09
Also published as: CN111119459A

Abstract

The invention discloses a cement leveling device which comprises two assembly cylinders, wherein one side of each assembly cylinder is provided with a supporting seat, each supporting seat comprises a first connecting device, a second connecting device and a third connecting device, each assembly cylinder is internally provided with a hollow assembly cavity, the side wall of each assembly cavity is provided with a thread, a rotating column matched with the thread is arranged in each assembly cavity, the upper end surface of each rotating column is fixedly connected with a handle, the lower end surface of each rotating column is rotatably connected with a movable block through a bearing, and two sides of each movable block are provided with scales. According to the invention, through the interaction of the first mounting rod, the second mounting rod, the third limiting groove, the second limiting groove and the like, the second connecting plate, the third connecting plate and the first connecting plate are convenient to disassemble and mount, the portability is increased, meanwhile, the overall length of the supporting seat can be changed at will according to the size of a room, the adjustment is convenient, and the applicability is increased.

Description

Cement leveling device

Technical Field

The invention relates to the technical field of buildings, in particular to a cement leveling device.

Background

With the pulling of a large number of residential areas, in the national economic construction, the construction enterprises are tasked with comprehensively completing the undertaken construction tasks on the basis of continuously improving the engineering quality, shortening the construction period and improving the benefits, and make contributions to meeting the social expanded reproduction and improving the living conditions of people.

In the building process, the leveling of the cement ground is one of the standards for judging the high and low building quality, and the cement leveling is performed by manually holding the side surface of a steel ruler to continuously slide on the cement ground, so that the cement ground is slowly leveled, but the burden of workers is greatly increased, and the ground is easily uneven by depending on experience.

Disclosure of Invention

The invention aims to solve the defects in the prior art that the leveling of a cement ground is one of the standards for judging the high and low building quality in the building process, the cement leveling is performed by manually holding the side surface of a steel ruler on the cement ground to continuously slide on the cement ground, so that the cement ground is leveled slowly, but the burden of workers is greatly increased, and the ground is easily uneven depending on experience, so that the cement leveling device is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a cement leveling device, includes two assembly section of thick bamboo, every one side of assembly section of thick bamboo all is equipped with the supporting seat, the supporting seat includes first connecting device, second connecting device, third connecting device.

Each assembling cylinder is internally provided with a hollow assembling cavity, the side wall of the assembling cavity is provided with threads, a rotary column matched with the threads is arranged in the assembling cavity, the upper end face of the rotary column is fixedly connected with a handle, the lower end face of the rotary column is rotatably connected with a movable block through a bearing, two sides of the movable block are respectively provided with a dividing ruler, the width of the movable block is slightly smaller than the diameter of the assembling cavity, the movable block is internally provided with a right-angle groove with a downward opening, the right-angle groove is internally and slidably connected with a scraping ruler, two sides of the scraping ruler are provided with limiting grooves, the right-angle groove is internally provided with a limiting block which is integrally formed, the limiting block is slidably connected in the limiting grooves, the distance between the two right-angle grooves is larger than the length of the scraping ruler, two ends of the scraping ruler are fixedly connected with adsorption blocks, and each right-angle groove is fixedly connected with an electromagnet, the electromagnet interacts with the adsorption block.

One side of the assembling cylinder is fixedly connected with a connecting block, a pulley is rotatably connected to the connecting block, and the pulley and the first limiting groove are arranged in parallel.

Preferably, the first connecting device includes first connecting plate, first mounting groove has all been seted up to the both ends face of first connecting plate, and is a plurality of an assembly section of thick bamboo is the array arrangement, and the quantity of first mounting groove is at least for one, four in this embodiment, the first spacing groove of horizontal setting is seted up to one side of first connecting plate, the transversal T shape setting of personally submitting of first spacing groove, still be equipped with vertical groove on the first connecting plate, vertical groove connects perpendicularly in first spacing groove, set up the first tooth's socket with first spacing groove parallel arrangement with the one side that is equipped with vertical groove adjacent on the first connecting plate, first tooth's socket internal fixation is connected with first pinion rack.

Preferably, the second connecting device comprises a plurality of third connecting plates, the third connecting plates are symmetrically arranged relative to the first connecting plate, third limiting grooves and second tooth grooves are formed in the third connecting plates, a second mounting groove identical to the first mounting groove in the first end face of the first connecting plate is formed in one side of the third connecting plates, a first mounting rod matched with the first mounting groove is arranged on the other end face of the third connecting plate, the first mounting rod is inserted into the first mounting groove during mounting, the second tooth grooves and the first tooth grooves, the third limiting grooves and the first limiting grooves are flushed, and third toothed plates identical to the first toothed plates are mounted in the third connecting plates.

Preferably, the third connecting device comprises a second connecting plate, the second connecting plate is provided with a third tooth socket and a second limiting groove, the third tooth socket, the second tooth socket and the first tooth socket are mutually matched, the second limiting groove, the third limiting groove and the first limiting groove are mutually matched, one end of the second connecting plate is fixedly connected with a second mounting rod matched with the second mounting groove, a third toothed plate is clamped in the third toothed groove, the third toothed plate, the second toothed plate and the first toothed plate are all the same, the other end of the second connecting plate is provided with a plurality of mounting holes, the bottom side wall of each mounting hole is fixedly connected with a straight spring, the other end of the straight spring is fixedly connected with a supporting rod which is connected in the mounting hole in a sliding way, the other end of bracing piece is fixedly connected with backup pad still, the backup pad is equipped with on the one side that deviates from the second connecting plate and inlays and be equipped with a plurality of grains of sand.

Preferably, every the equal fixedly connected with installed part in one side of an assembly section of thick bamboo, every the ascending rectangle chamber of opening has all been seted up on the installed part, charging source, singlechip and signal receiver are installed to the rectangle intracavity, the singlechip respectively with charging source, signal receiver electric connection, one of them still install driving motor in the installed part, driving motor installs at the rectangle intracavity, and be electric connection with charging source, driving motor's one end runs through the rectangle chamber and the fixed link has the round gear, the round gear is connected with first pinion rack, second pinion rack, the equal intermeshing of third pinion rack respectively, signal receiver still passes through the remote controller that signal connection matches with it.

Compared with the prior art, the invention has the beneficial effects that:

1. through the interaction of first installation pole, second installation pole, third spacing groove, second spacing groove, isotructure for convenient to detach installs between second connecting plate, the first connecting plate of third connecting plate, has increased the portability, can conveniently adjust according to the holistic length of the big or small random change supporting seat in room simultaneously, has increased the suitability.

2. Through the interact of charging source, an assembly section of thick bamboo, scraping chi, electro-magnet isotructure to avoid appearing the local unevenness in whole ground or the situation of whole ground slope, whole process does not need the workman to bow and handheld scraping chi removal and flattening moreover, very big reduction workman's labour, increased work efficiency.

Drawings

FIG. 1 is a schematic view of a front structure of a support base of a cement leveling device according to the present invention;

FIG. 2 is a schematic view of a partial structure of a cement screed according to the present invention;

FIG. 3 is a schematic perspective view of an assembly cylinder of the cement leveling apparatus according to the present invention;

FIG. 4 is a perspective view of a mounting member of a concrete screed apparatus according to the present invention;

FIG. 5 is a schematic perspective view of a screed of a concrete screed according to the present invention;

FIG. 6 is a perspective view of a first connecting plate of the concrete screed according to the present invention;

FIG. 7 is a perspective view of a second web of a screed according to the present invention;

fig. 8 is a schematic perspective view of a third connecting plate of the cement leveling device according to the present invention.

In the figure: 1 first connecting plate, 1A second connecting plate, 1B third connecting plate, 2 first spacing grooves, 2A second spacing grooves, 2B third spacing grooves, 3 assembly cylinders, 4 assembly cavities, 5 movable blocks, 6 scraping rules, 7 rotating columns, 8 supporting plates, 9 supporting rods, 10A first installation rods, 10B second installation rods, 11 first tooth grooves, 11B second tooth grooves, 11A third tooth grooves, 12 vertical grooves, 13 first installation grooves, 13A second installation grooves, 14 adsorption blocks, 15 installation parts, 16 charging power supplies, 17 circular gears, 18 first toothed plates, 18A second toothed plates, 18B third toothed plates, 19 spacing grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of 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, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-8, a cement leveling device comprises two assembly cylinders 3, and is characterized in that one side of each assembly cylinder 3 is provided with a support seat, the support seat comprises a first connecting device, a second connecting device and a third connecting device, the first connecting device comprises a first connecting plate 1, two end faces of the first connecting plate 1 are respectively provided with a first mounting groove 13, a plurality of assembly cylinders 3 are arranged in an array manner, the number of the first mounting grooves 13 is at least 1, in the embodiment, four mounting grooves are provided, one side of the first connecting plate 1 is provided with a first limiting groove 2 which is transversely arranged, the cross section of the first limiting groove 2 is in a T shape, the first connecting plate 1 is further provided with a vertical groove 12, the vertical groove 12 is vertically connected to the first limiting groove 2, one side of the first connecting plate 1 adjacent to the vertical groove 12 is provided with a first tooth groove 11 which is arranged in parallel to the first limiting groove 2, a first toothed plate 18 is fixedly connected in the first toothed groove 11.

The second connecting device comprises a plurality of third connecting plates 1B, the plurality of third connecting plates 1B are symmetrically arranged relative to the first connecting plate 1, third limiting grooves 2B and second tooth grooves 11B are formed in the third connecting plates 1B, one side of each third connecting plate 1B is provided with a second mounting groove 13A identical to the first mounting groove 13 of the first end face of the first connecting plate 1, the other end face of each third connecting plate 1B is provided with a first mounting rod 10A matched with the first mounting groove 13, the first mounting rod 10A is inserted into the first mounting groove 13 during mounting, the second tooth grooves 11B and the first tooth grooves 11 are flush, the third limiting grooves 2B and the first limiting grooves 2, and third tooth plates 18B identical to the first tooth plates 18 are mounted in the third connecting plates 1B.

The third connecting device comprises a second connecting plate 1A, a third tooth groove 11A and a second limiting groove 2A are arranged on the second connecting plate 1A, the third tooth groove 11A, the second tooth groove 11B and the first tooth groove 11 are matched with each other, the second limiting groove 2A, the third limiting groove 2B and the first limiting groove 2 are matched with each other, one end of the second connecting plate 1A is fixedly connected with a second mounting rod 10B matched with the second mounting groove 13A, a third tooth plate 18B is clamped in the third tooth groove 11A, the third tooth plate 18B, the second tooth plate 18A and the first tooth plate 18 are all the same, a plurality of mounting holes are arranged at the other end of the second connecting plate 1A, a straight spring is fixedly connected on the bottom side wall of each mounting hole, a supporting rod 9 is fixedly connected with the other end of the straight spring, the supporting rod 9 is slidably connected in the mounting holes, a supporting plate 8 is fixedly connected with the other end of the supporting rod 9, one side of the supporting plate 8 departing from the second connecting plate 1A is provided with a plurality of sand grains, so that the friction force between the supporting plate 8 and the wall surface can be increased, and the clamping is tighter.

When the supporting seat is installed, the number of the third connecting plates 1B is selected according to the width of the wall surface, the plurality of third connecting plates 1B are connected end to end, then the first installation rod 10A is matched with the first installation groove 13, the third connecting plates 1B are clamped on the first connecting plates 1, finally the second connecting plates 1A are clamped on one side of the second tooth grooves 11B, so that the third tooth plates 18B, the second tooth plates 18A and the first tooth plates 18 are aligned with each other, meanwhile, the third limiting grooves 2B, the second limiting grooves 2A and the first limiting grooves 2 are aligned with each other, under the action of the straight spring, the supporting rod 9 is pushed outwards, so that the side surface of the supporting plate 8 is tightly attached to the wall surface, the whole supporting seat supporting column is supported under the action of friction force, the second connecting plates 1A and the third connecting plates 1B are convenient to disassemble and install, the portability is improved, meanwhile, the whole length of the supporting seat can be changed at will according to the size of a room, the adjustment is convenient, and the applicability is improved.

Set up the assembly chamber 4 that cavity set up in every assembly section of thick bamboo 3, be equipped with the screw thread on the lateral wall of assembly chamber 4, be equipped with in the assembly chamber 4 with screw thread assorted column spinner 7, the up end fixed link of column spinner 7 has the handle, the lower terminal surface of column spinner 7 is connected with movable block 5 through bearing rotation, the both sides of movable block 5 are equipped with and all install the scale, the width of movable block 5 slightly is less than the diameter of assembly chamber 4, be equipped with the decurrent right-angle groove of opening in the movable block 5, right-angle inslot sliding connection has scraper 6, scraper 6's both sides are equipped with spacing groove 19, right-angle inslot be equipped with one-body forming's stopper, stopper sliding connection is in spacing groove 19, distance between two right-angle grooves is greater than scraper 6's length, scraper 6's both ends fixedly connected with adsorbs piece 14, every right-angle inslot fixedly connected with electro-magnet, electro-magnet and 14 interact.

Equal fixedly connected with installed part 15 in one side of every assembly section of thick bamboo 3, the ascending rectangle chamber of opening has all been seted up on every installed part 15, charging source 16 is installed to the rectangle intracavity, singlechip and signal receiver, the singlechip respectively with charging source 16, signal receiver electric connection, still install driving motor in one of them installed part 15, driving motor is servo motor, driving motor installs in the rectangle intracavity, and be electric connection with charging source 16, driving motor's one end runs through the rectangle chamber and the fixed link has round gear 17, round gear 17 respectively with first pinion rack 18, second pinion rack 18A, the equal intermeshing of third pinion rack 18B connects, signal receiver still passes through the remote controller that signal connection matches with it.

One side of an assembly section of thick bamboo 3 is fixedly connected with connecting block still, rotates on the connecting block and is connected with the pulley, and pulley and first spacing groove 2 parallel arrangement, pulley parallel movement in first spacing groove 2 when an assembly section of thick bamboo 3 removes reduces the resistance when an assembly section of thick bamboo 3 removes.

Insert the right-angle groove with the one end of scraping rule 6 through spacing groove 19 and stopper, the electro-magnet does not switch on this moment, do not have adsorption affinity between adsorption block 14 and the electro-magnet, then will assemble a section of thick bamboo 3 top-down and install on first connecting plate 1 through vertical groove 12, make the pulley be located first spacing groove 2, round gear 17 just is connected with first pinion rack 18 meshing this moment, stretch into the assembly chamber 4 with the hand and rotate column spinner 7, under the effect of screw thread, column spinner 7 downshifts makes scraping rule 6 downshifting, highly confirm the distance that scraping rule 6 downshifted according to the ink mark, can when the bottom of scale and an assembly section of thick bamboo 3 is parallel, prepare work is accomplished.

The signal is transmitted to the signal receiver by using a remote controller, then the single chip microcomputer receives the signal of the signal receiver and converts the signal into an electric signal, the electric signal is respectively transmitted to the charging power supply 16, the charging power supply 16 supplies power to enable the driving motor to rotate, so that the circular gear 17 moves on the first toothed plate 18, the assembly cylinder 3 is driven to move horizontally, the scraping ruler 6 moves on a cement surface, the cement which is just poured in is continuously leveled by using the bottom plane of the scraping ruler 6, whether the electromagnet is electrified or not is controlled according to the leveling condition of the cement, the electromagnet is electrified to generate adsorption force on the adsorption block 14, the scraping ruler 6 is adsorbed, then the cement at the corner of a room in the electrified direction is leveled, the descending height of the scraping ruler 6 is fixed after adjustment, the condition that the whole ground is partially uneven or the whole ground is inclined, and in the whole process, a worker does not need to bend over and hold the scraping ruler 6 to move and level, the labor force of workers is greatly reduced, and the working efficiency is improved.

In the invention, the preparation work comprises installation, when the supporting seat is installed, the number of the third connecting plates 1B is selected according to the width of the wall surface, the plurality of third connecting plates 1B are mutually connected end to end, then the first installation rod 10A is matched with the first installation groove 13, the third connecting plates 1B are clamped on the first connecting plates 1, finally the second connecting plates 1A are clamped at one side of the second tooth grooves 11B, so that the third toothed plates 18B, the second toothed plates 18A and the first toothed plates 18 are mutually aligned, meanwhile, the third limiting grooves 2B, 2C and the first limiting grooves 2 are mutually aligned, under the action of the straight spring, the supporting rod 9 is outwards pushed out, so that the side surface of the supporting plate 8 is mutually attached to the wall, the supporting column of the whole supporting seat is tightly attached to the friction force, and the second connecting plates 1A and the third connecting plates 1B are conveniently disassembled and installed between the first connecting plates 1, increased the portability, simultaneously can be according to the holistic length of the random change supporting seat of size in room, convenient regulation, the suitability has been increased, insert right angle groove with the one end of scraping rule 6 through spacing groove 19 and stopper, the electro-magnet does not switch on this moment, adsorb not have the adsorption affinity between piece 14 and the electro-magnet, then install assembly section of thick bamboo 3 top-down on first connecting plate 1 through vertical groove 12, make the pulley be located first spacing groove 2, round gear 17 just connects with first pinion rack 18 meshing this moment, stretch into assembly chamber 4 with the hand and rotate column spinner 7, under the effect of screw thread, column spinner 7 moves down makes scraping rule 6 to remove down, highly confirm the distance that scraping rule 6 moved down according to the ink line, can when the bottom parallel of scale and assembly section of thick bamboo 3, preparation work is accomplished.

The signal is transmitted to the signal receiver by using a remote controller, then the single chip microcomputer receives the signal of the signal receiver and converts the signal into an electric signal, the electric signal is respectively transmitted to the charging power supply 16, the charging power supply 16 supplies power to enable the driving motor to rotate, so that the circular gear 17 moves on the first toothed plate 18, the assembly cylinder 3 is driven to move horizontally, the scraping ruler 6 moves on a cement surface, the cement which is just poured in is continuously leveled by using the bottom plane of the scraping ruler 6, whether the electromagnet is electrified or not is controlled according to the leveling condition of the cement, the electromagnet is electrified to generate adsorption force on the adsorption block 14, the scraping ruler 6 is adsorbed, then the cement at the corner of a room in the electrified direction is leveled, the descending height of the scraping ruler 6 is fixed after adjustment, the condition that the whole ground is partially uneven or the whole ground is inclined, and in the whole process, a worker does not need to bend over and hold the scraping ruler 6 to move and level, the labor force of workers is greatly reduced, and the working efficiency is improved. (the connection mode among the charging power supply, the driving motor, the singlechip, the signal receiver and the remote controller belongs to the prior art, and the working principle is not described in detail)

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A cement leveling device comprises two assembly cylinders (3), and is characterized in that one side of each assembly cylinder (3) is provided with a supporting seat, and each supporting seat comprises a first connecting device, a second connecting device and a third connecting device;

each assembling cylinder (3) is internally provided with a hollow assembling cavity (4), the side wall of each assembling cavity (4) is provided with threads, a rotating column (7) matched with the threads is arranged in each assembling cavity (4), the upper end face of each rotating column (7) is fixedly connected with a handle, the lower end face of each rotating column (7) is rotatably connected with a movable block (5) through a bearing, both sides of each movable block (5) are respectively provided with a scale, the width of each movable block (5) is slightly smaller than the diameter of each assembling cavity (4), each movable block (5) is internally provided with a right-angle groove with a downward opening, each right-angle groove is internally provided with a scraping ruler (6) in a sliding manner, both sides of each scraping ruler (6) are provided with limiting grooves (19), each right-angle groove is internally provided with a formed limiting block, each limiting block is slidably connected in each limiting groove (19), and the distance between the two right-angle grooves is greater than the length of each scraping ruler (6), adsorption blocks (14) are fixedly connected to two ends of the scraping ruler (6), an electromagnet is fixedly connected to each right-angle groove, and the electromagnets and the adsorption blocks (14) interact with each other;

one side of the assembling cylinder (3) is also fixedly connected with a connecting block, a pulley is rotatably connected onto the connecting block, and the pulley and the first limiting groove (2) are arranged in parallel;

the first connecting device comprises a first connecting plate (1), first mounting grooves (13) are formed in two end faces of the first connecting plate (1), a plurality of assembling cylinders (3) are arranged in an array mode, the number of the first mounting grooves (13) is at least 1, a first limiting groove (2) which is transversely arranged is formed in one side of the first connecting plate (1), the cross section of the first limiting groove (2) is arranged in a T shape, a vertical groove (12) is further formed in the first connecting plate (1), the vertical groove (12) is vertically connected to the first limiting groove (2), a first tooth groove (11) which is parallel to the first limiting groove (2) is formed in one face, adjacent to the face provided with the vertical groove (12), of the first connecting plate (1), and a first tooth plate (18) is fixedly connected in the first tooth groove (11);

the second connecting means comprise a plurality of third connecting plates (1B), a plurality of the third connecting plates (1B) being arranged symmetrically with respect to the first connecting plates (1), a third limiting groove (2B) and a second tooth groove (11B) are arranged on the third connecting plate (1B), one side of the third connecting plate (1B) is provided with a second mounting groove (13A) which is the same as the first mounting groove (13) on one end surface of the first connecting plate (1), the other end face of the third connecting plate (1B) is provided with a first mounting rod (10A) matched with the first mounting groove (13), the first mounting rod (10A) is inserted into the first mounting groove (13) during mounting, so that the second tooth socket (11B) is flush with the first tooth socket (11), the third limit socket (2B) is flush with the first limit socket (2), a third toothed plate (18B) which is the same as the first toothed plate (18) is mounted in the third connecting plate (1B);

the third connecting device comprises a second connecting plate (1A), a third tooth groove (11A) and a second limiting groove (2A) are arranged on the second connecting plate (1A), the third tooth groove (11A), a second tooth groove (11B) and the first tooth groove (11) are matched with each other, the second limiting groove (2A), the third limiting groove (2B) and the first limiting groove (2) are matched with each other, one end of the second connecting plate (1A) is fixedly connected with a second mounting rod (10B) matched with the second mounting groove (13A), a third toothed plate (18B) is clamped in the third tooth groove (11A), the third toothed plate (18B), the second toothed plate (18A) and the first toothed plate (18) are all the same, a plurality of mounting holes are formed in the other end of the second connecting plate (1A), and a straight spring is fixedly connected to the side wall of each mounting hole, the other end fixedly connected with bracing piece (9) of straight spring, bracing piece (9) sliding connection is in the mounting hole, the other end of bracing piece (9) is fixedly connected with backup pad (8) still, backup pad (8) deviate from and are equipped with on one side of second connecting plate (1A) and inlay and be equipped with a plurality of grains of sand.

2. A cement levelling device according to claim 1, characterized in that a mounting piece (15) is fixedly connected to one side of each mounting cylinder (3), each mounting piece (15) is provided with a rectangular cavity with an upward opening, a charging power supply (16), a singlechip and a signal receiver are arranged in the rectangular cavity, the singlechip is respectively and electrically connected with the charging power supply (16) and the signal receiver, one of the mounting parts (15) is also internally provided with a driving motor which is arranged in a rectangular cavity, and is electrically connected with a charging power supply (16), one end of the driving motor penetrates through the rectangular cavity and is fixedly connected with a circular gear (17), the round gear (17) is respectively meshed with the first toothed plate (18), the second toothed plate (18A) and the third toothed plate (18B) and is connected with the signal receiver through a signal connection and a remote controller matched with the signal receiver.