CN221264973U - Plant protection machinery for agricultural and forestry spraying - Google Patents

Abstract

The utility model discloses a plant protection machine for agricultural and forestry spraying, which comprises a box body, an operation door, a stirring assembly and a driving assembly, wherein the box body is provided with a stirring shaft; the upper surface of box has seted up the operation mouth, the operation door is installed in operation mouth department through first round pin axle rotation, the lower surface mounting of box has three rotation support. Compared with the prior art, the plant protection machine for agricultural and forestry spraying is capable of fully mixing liquid medicines, further capable of driving the first water outlet pipe and the first spray nozzle on the first mounting plate to rotate back and forth through the rotating shaft after the liquid medicines are mixed, further capable of driving the second water outlet pipe and the second spray nozzle on the second mounting plate to move back and forth in a telescopic mode, and therefore spraying area of agricultural and forestry spraying can be increased, spraying efficiency of agricultural and forestry is improved, rollers and manual pushing armrests are utilized to drive the box body, spraying efficiency of agricultural and forestry can be further improved, and labor intensity is greatly reduced.

Description

Plant protection machinery for agricultural and forestry spraying

Technical Field

The utility model relates to the technical field of plant protection machinery, in particular to a plant protection machinery for agricultural and forestry spraying.

Background

The plant protection machine is used for rural plant protection. Along with the increased investment and subsidy of agriculture by the nation, modern plant protection machinery is entering the hands of farmers. The plant protection machinery solves the defects of labor force, improves the production efficiency and the precision of agriculture, and the plant protection is an important component of agriculture and forestry production. Is one of important measures for ensuring high yield and harvest of agriculture and forestry. In order to economically and effectively protect plants, various control methods and positive effects are exerted, and the guidelines of 'prevention in advance and comprehensive control' are implemented, so that diseases, insects, grass pests and other pests are eliminated before being harmed, and are not caused to become disasters.

However, most of the traditional agricultural and forestry pesticide spraying at present selects to manually spray the pesticide, and an operator holds or carries a simple plant protection machine to operate, so that the agricultural and forestry pesticide spraying efficiency is lower, the manual labor intensity is higher, and therefore, the agricultural and forestry pesticide spraying plant protection machine is provided.

Disclosure of utility model

The utility model aims to overcome the existing defects, and provides a plant protection machine for agricultural and forestry spraying, which is characterized in that liquid medicine is poured into a mixing chamber through an operation port, the liquid medicine is positioned at the lowest part of the mixing chamber under the action of a V-shaped plate, the liquid medicine is fully mixed by rotating a stirring assembly on a rotating shaft, at the moment, the rotating shaft is in a fixed state, after the liquid medicine is mixed, the rotating shaft is driven to rotate positively and negatively through the working of a driving assembly, the rotating shaft rotates to drive a circular plate to rotate, the circular plate rotates to drive a connecting rod to swing, the second mounting plate is driven to move back and forth under the limiting action by the swinging of the connecting rod, and meanwhile, the rotating shaft also drives a first mounting plate to move back and forth under the action of a limiting block and a limiting groove, so that a first water outlet pipe and a first spray nozzle on the first mounting plate also can move back and forth under the action of a second water outlet pipe and a second spray nozzle on the second mounting plate, the spray area of agricultural and the spray medicine can be increased, and the spraying efficiency of the agricultural and the pesticide can be further improved by using a roller and a manual pushing handrail to drive a box, so that the agricultural and forestry spraying efficiency can be further improved, and the technical problem can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a plant protection machine for agricultural and forestry spraying comprises a box body, an operation door, a stirring assembly and a driving assembly;

The upper surface of the box body is provided with an operation opening, the operation door is rotatably arranged at the operation opening through a first pin shaft, the lower surface of the box body is provided with three rotating brackets, the rotating brackets are rotatably provided with rollers through a second pin shaft, the rear side of the box body is provided with two handrail brackets, and the two handrail brackets are jointly provided with handrails;

The inner part of the box body is rotatably provided with a rotating shaft, the upper surface of the box body is provided with a driving assembly, the driving assembly is connected with the upper end of the rotating shaft, the middle part of the rotating shaft is provided with a V-shaped plate, the upper surface of the V-shaped plate is enclosed with the inner wall of the box body to form a mixing chamber, the lower surface of the V-shaped plate is enclosed with the inner wall of the box body to form a working chamber, the rotating shaft is provided with a stirring assembly, the stirring assembly is positioned in the mixing chamber, the lower end of the rotating shaft is provided with a circular plate, the upper surface of the circular plate is provided with two first mounting columns which are symmetrical with each other, the first mounting columns are rotatably provided with connecting rods, the upper surface of the other end of each connecting rod is rotatably provided with a second mounting column, two sides of the box body are provided with sliding grooves, the lower surfaces of the inner ends of the second mounting plates are rotatably connected with the second mounting columns, the second mounting plates are in one-to-one correspondence with the second mounting columns, the inner parts of the second mounting plates are provided with second liquid storage cavities, the lower surfaces of the second mounting plates are uniformly provided with second water outlet pipes, and the second spray heads are positioned at the outer ends of the outer spray heads;

The front end of the box body is arc-shaped, an arc-shaped through groove is formed in the middle of the front end of the box body, limit grooves are formed in the upper surface and the lower surface of the arc-shaped through groove, a first mounting plate is mounted on the rotating shaft, a first liquid storage cavity is formed in the first mounting plate, limiting blocks are mounted on the upper surface and the lower surface of the first mounting plate, the limiting blocks are in sliding connection with the limit grooves, the front end of the first mounting plate protrudes out of the box body, a plurality of first water outlet pipes are uniformly arranged on the lower surface of the front end of the first mounting plate at intervals, a first spray head is mounted on the lower surface of the front end of the first water outlet pipe, and the first spray head is located outside the box body;

The inside of pivot has been seted up the circular slot, two medicine inlets have been seted up along the inner wall upper portion of circular slot, the medicine inlet is located in the mixing chamber, first logical groove has been seted up to the inside lateral wall in first stock solution chamber, first stock solution chamber and circular slot intercommunication, the hose is all installed to the both sides of first mounting panel, the other end and the second mounting panel of hose are connected, first stock solution chamber, hose and second stock solution chamber intercommunication each other.

Further, the stirring assembly comprises an annular plate which is rotatably arranged on a rotating shaft, a plurality of stirring rods are uniformly arranged on the outer surface of the annular plate at intervals, hinged supports are arranged on two sides of the upper surface of the annular plate, an L-shaped support is rotatably arranged on the hinged supports through a third pin shaft, two clamping grooves are formed in the outer surface of the rotating shaft, and the upper ends of the L-shaped supports are connected with corresponding clamping groove buckles. After the liquid medicine is poured into the mixing chamber, the annular plate is rotated manually to drive the stirring rod to rotate so as to achieve preliminary mixing of the liquid medicine, then the end part of the L-shaped support is clamped with the clamping groove to achieve fixation between the rotating shaft and the annular plate, the annular plate is further driven to rotate through rotation of the rotating shaft, and accordingly the stirring rod is continuously driven to rotate, and the mixing effect of the liquid medicine is improved.

Further, the medicine box further comprises a guide post and a handle, wherein a through hole is formed in the front end of the box body, the guide post sequentially penetrates through the through hole and the two medicine feeding holes in a sliding mode, and the handle is arranged at the outer end of the guide post. When the rotating shaft is not required to rotate, the guide post is sent into the through hole through the handle so as to block the through hole, the unmixed liquid medicine is prevented from flowing downwards, and the guide post is taken out after the liquid medicine is primarily mixed.

Further, the driving assembly comprises a motor support arranged on the upper surface of the box body, a motor is arranged on the motor support, an output shaft of the motor is connected to the upper end of the rotating shaft through a coupling, and an input end of the motor is electrically connected with an output end of the external controller. The motor is controlled to work through the external controller, and the motor works to drive the rotating shaft to rotate, so that pesticide spraying work on agriculture and forestry is completed through rotation of the rotating shaft.

Compared with the prior art, the utility model has the beneficial effects that: this plant protection machinery for agriculture and forestry spraying is at first, pour into the liquid medicine into the mixing chamber through the operation mouth, liquid medicine is in the lower part of mixing chamber under the effect of V template, carry out intensive mixing through rotating between the epaxial stirring subassembly of pivot, at this moment, the pivot is in fixed state, after mixing between the liquid medicine is accomplished, drive the positive and negative round trip rotation of pivot through drive assembly work, the pivot rotates and drives the plectane and rotate, the plectane rotates and drives the connecting rod swing, utilize the connecting rod swing to make second mounting panel under spacing effect round trip telescopic movement, simultaneously, the pivot rotates and still drives first mounting panel and remove under the effect of stopper and spacing groove, thereby first outlet pipe and first shower nozzle on first mounting panel also can round trip rotation, second outlet pipe and second shower nozzle on second mounting panel also can round trip telescopic movement, thereby can increase the spraying area of agriculture and forestry spraying medicine, in order to promote the efficiency of spraying agriculture and forestry, and utilize gyro wheel and manual work to promote the box, thereby can further promote the efficiency of spraying agriculture and forestry, and very big reduction artificial intensity of labour.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a first cross-sectional structure of the present utility model;

FIG. 3 is a schematic diagram of a second cross-sectional structure of the present utility model;

Fig. 4 is a schematic view of a partial enlarged structure of the present utility model at a.

In the figure: 1 handrail, 2 motor support, 3 motor, 4 operation door, 5 operation mouth, 6 guide pillar, 7 handles, 8 first outlet pipe, 9 first shower nozzle, 10 first mounting panel, 11 rotation support, 12 gyro wheel, 13 second shower nozzle, 14 second mounting panel, 15 arc through groove, 16 spacing groove, 17 circular groove, 18 first through groove, 19 first liquid storage chamber, 20 puddler, 21 box, 22V template, 23 connecting rod, 24 hose, 25 second liquid storage chamber, 26 second outlet pipe, 27 plectane, 28 pivot, 29 first erection column, 30 second erection column, 31 hinge support, 32L type support, 33 annular plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides a technical solution: a plant protection machine for agricultural and forestry spraying comprises a box body 21, an operation door 4, a stirring assembly and a driving assembly;

The upper surface of the box body 21 is provided with an operation opening 5, the operation door 4 is rotatably arranged at the operation opening 5 through a first pin shaft, the lower surface of the box body 21 is provided with three rotating brackets 11, the rotating brackets 11 are rotatably provided with idler wheels 12 through a second pin shaft, the rear side of the box body 21 is provided with two handrail brackets, and the two handrail brackets are jointly provided with a handrail 1;

The inner rotation of the box body 21 is provided with a rotating shaft 28, the upper surface of the box body 21 is provided with a driving component, the driving component is connected with the upper end of the rotating shaft 28, the middle part of the rotating shaft 28 is provided with a V-shaped plate 22, the upper surface of the V-shaped plate 22 is enclosed with the inner wall of the box body 21 to form a mixing chamber, the lower surface of the V-shaped plate 22 is enclosed with the inner wall of the box body 21 to form a working chamber, the rotating shaft 28 is provided with a stirring component, the stirring component is positioned in the mixing chamber, the lower end of the rotating shaft 28 is provided with a circular plate 27, the upper surface of the circular plate 27 is provided with two first mounting columns 29 which are symmetrical to each other, the first mounting columns 29 are rotatably provided with connecting rods 23, the upper surface of the other end of the connecting rods 23 is rotatably provided with second mounting columns 30, the two sides of the box body 21 are provided with sliding grooves, the inner end lower surfaces of the second mounting plates 14 are rotatably connected with the second mounting columns 30, the second mounting plates 14 are in one-to-one correspondence with the second mounting columns 30, the inner part of the second mounting plates 14 is provided with a second cavity 25, the lower surfaces of the second water outlet pipes 26 are uniformly arranged at the outer ends of the second mounting plates 14, the second water outlet pipes 26 are uniformly arranged at the outer ends of the second mounting plates 26, the second nozzle 13 is positioned at the outer side of the second spray head 13, and the spray head 13 is arranged at the outer side of the second box 13;

The front end of the box body 21 is arc-shaped, an arc-shaped through groove 15 is formed in the middle of the front end of the box body 21, limit grooves 16 are formed in the upper surface and the lower surface of the arc-shaped through groove 15, a first mounting plate 10 is mounted on a rotating shaft 28, a first liquid storage cavity 19 is formed in the first mounting plate 10, limit blocks are mounted on the upper surface and the lower surface of the first mounting plate 10, the limit blocks are in sliding connection with the limit grooves 16, the front end of the first mounting plate 10 protrudes out of the box body 21, a plurality of first water outlet pipes 8 are uniformly mounted on the lower surface of the front end of the first mounting plate 10 at intervals, a first spray head 9 is mounted on the lower surface of the front end of the first water outlet pipe 8, and the first spray head 9 is located outside the box body 21;

The rotary shaft 28 is internally provided with a round groove 17, the upper edge of the inner wall of the round groove 17 is provided with two medicine inlet holes, the medicine inlet holes are arranged in the mixing chamber, the inner side wall of the first liquid storage cavity 19 is provided with a first through groove 18, the first liquid storage cavity 19 is communicated with the round groove 17, two sides of the first mounting plate 10 are respectively provided with a hose 24, the other end of the hose 24 is connected with the second mounting plate 14, and the first liquid storage cavity 19, the hose 24 and the second liquid storage cavity 25 are mutually communicated.

Firstly, pouring liquid medicine into a mixing chamber through an operation port 5, fully mixing the liquid medicine by rotating a stirring assembly on a rotating shaft 28 at the lowest part of the mixing chamber under the action of a V-shaped plate 22, wherein the rotating shaft 28 is in a fixed state, after the liquid medicine is mixed, the rotating shaft 28 is driven to rotate positively and negatively by the operation of a driving assembly, the rotating shaft 28 rotates to drive a circular plate 27 to rotate, the circular plate 27 rotates to drive a connecting rod 23 to swing, the second mounting plate 14 is driven to move back and forth under the limiting action by the swinging of the connecting rod 23, meanwhile, the rotating shaft 28 rotates to drive the first mounting plate 10 to move under the action of a limiting block and a limiting groove 16, so that a first water outlet pipe 8 and a first spray nozzle 9 on the first mounting plate 10 also can move back and forth, a second water outlet pipe 26 and a second spray nozzle 13 on the second mounting plate 14 can also move back and forth, thereby the spraying area of agricultural and forestry spraying medicine can be increased, the spraying efficiency of the agricultural forestry can be improved, the box 21 is driven by using a roller 12 and a handrail 1 to drive a box 21, the agricultural forestry spraying efficiency can be further improved, and the labor intensity of labor is greatly reduced;

The through hole of the liquid medicine rotation shaft 28 flows into the first liquid storage cavity 19 of the first mounting plate 10 through the circular groove 17 and the first through groove 18, one part of the liquid medicine is sprayed outwards through the first water outlet pipe 8 and the first spray nozzle 9, and the other part of the liquid medicine flows into the second liquid storage cavity 25 of the second mounting plate 14 through the hose 24 and is sprayed out through the second water outlet pipe 26 and the second spray nozzle 13, so that the spraying work on agriculture and forestry is completed.

The stirring subassembly is including rotating the annular plate 33 of installing on pivot 28, and a plurality of puddlers 20 are evenly installed to annular plate 33's surface interval, and hinge support 31 is all installed to annular plate 33's upper surface both sides, and hinge support 31 rotates through the third round pin axle and installs L type support 32, and two draw-in grooves have been seted up to pivot 28's surface, and the upper end and the corresponding draw-in groove buckle of L type support 32 are connected. After the liquid medicine is poured into the mixing chamber, the stirring rod 20 is driven to rotate by manually rotating the annular plate 33 so as to finish preliminary mixing of the liquid medicine, then the end part of the L-shaped bracket 32 is clamped with the clamping groove so as to finish fixation between the rotating shaft 28 and the annular plate 33, and the annular plate 33 is further driven to rotate by rotating the rotating shaft 28 so as to continuously drive the stirring rod 20 to rotate, so that the mixing effect of the liquid medicine is improved.

The medicine box further comprises a guide post 6 and a handle 7, a through hole is formed in the front end of the box body 21, the guide post 6 sequentially penetrates through the through hole and the two medicine feeding holes in a sliding mode, and the handle 7 is arranged at the outer end of the guide post 6. When the rotation shaft 28 is not needed to rotate, the guide post 6 is sent into the through hole through the handle 7 to block the through hole, so that unmixed liquid medicine is prevented from flowing downwards, and after the liquid medicine is primarily mixed, the guide post 6 is taken out.

Further, the driving assembly comprises a motor support 2 arranged on the upper surface of the box body 21, a motor 3 is arranged on the motor support 2, an output shaft of the motor 3 is connected to the upper end of the rotating shaft 28 through a coupling, and an input end of the motor 3 is electrically connected with an output end of an external controller. The motor 3 is controlled to work through an external controller, and the motor 3 works to drive the rotating shaft 28 to rotate, so that pesticide spraying work on agriculture and forestry is completed by rotating the rotating shaft 28.

The working principle of the plant protection machine for agricultural and forestry spraying provided by the utility model is as follows: firstly, pouring liquid medicine into a mixing chamber through an operation port 5, fully mixing the liquid medicine by rotating a stirring assembly on a rotating shaft 28 at the lowest part of the mixing chamber under the action of a V-shaped plate 22, wherein the rotating shaft 28 is in a fixed state, after the liquid medicine is mixed, the rotating shaft 28 is driven to rotate positively and negatively by the operation of a driving assembly, the rotating shaft 28 rotates to drive a circular plate 27 to rotate, the circular plate 27 rotates to drive a connecting rod 23 to swing, the second mounting plate 14 is driven to move back and forth under the limiting action by the swinging of the connecting rod 23, meanwhile, the rotating shaft 28 rotates to drive the first mounting plate 10 to move under the action of a limiting block and a limiting groove 16, so that a first water outlet pipe 8 and a first spray nozzle 9 on the first mounting plate 10 also can move back and forth, a second water outlet pipe 26 and a second spray nozzle 13 on the second mounting plate 14 can also move back and forth, thereby the spraying area of agricultural and forestry spraying medicine can be increased, the spraying efficiency of the agricultural forestry can be improved, the box 21 is driven by using a roller 12 and a handrail 1 to drive a box 21, the agricultural forestry spraying efficiency can be further improved, and the labor intensity of labor is greatly reduced; the through hole of the liquid medicine rotation shaft 28 flows into the first liquid storage cavity 19 of the first mounting plate 10 through the circular groove 17 and the first through groove 18, one part of the liquid medicine is sprayed outwards through the first water outlet pipe 8 and the first spray nozzle 9, and the other part of the liquid medicine flows into the second liquid storage cavity 25 of the second mounting plate 14 through the hose 24 and is sprayed out through the second water outlet pipe 26 and the second spray nozzle 13, so that the spraying work on agriculture and forestry is completed. After the liquid medicine is poured into the mixing chamber, the stirring rod 20 is driven to rotate by manually rotating the annular plate 33 so as to finish preliminary mixing of the liquid medicine, then the end part of the L-shaped bracket 32 is clamped with the clamping groove so as to finish fixation between the rotating shaft 28 and the annular plate 33, and the annular plate 33 is further driven to rotate by rotating the rotating shaft 28 so as to continuously drive the stirring rod 20 to rotate, so that the mixing effect of the liquid medicine is improved. When the rotation shaft 28 is not needed to rotate, the guide post 6 is sent into the through hole through the handle 7 to block the through hole, so that unmixed liquid medicine is prevented from flowing downwards, and after the liquid medicine is primarily mixed, the guide post 6 is taken out. The motor 3 is controlled to work through an external controller, and the motor 3 works to drive the rotating shaft 28 to rotate, so that pesticide spraying work on agriculture and forestry is completed by rotating the rotating shaft 28.

It should be noted that in this embodiment, the core chip of the external controller is selected from an STC single-chip microcomputer, the specific model is STC15W204S, the motor 3 can be freely configured according to the actual application scenario, and the motor 3 can be selected from a JE series single-phase servo motor manufactured by mitsubishi motor (china) limited in beijing city. The external controller controls the operation of the motor 3 by methods commonly used in the art.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims (4)

1. The utility model provides a agriculture and forestry spouts medicinal plant protection machinery which characterized in that: comprises a box body (21), an operation door (4), a stirring component and a driving component;

An operation port (5) is formed in the upper surface of the box body (21), the operation door (4) is rotatably installed at the operation port (5) through a first pin shaft, three rotating supports (11) are installed on the lower surface of the box body (21), rollers (12) are rotatably installed on the rotating supports (11) through a second pin shaft, two handrail supports are installed on the rear side of the box body (21), and a handrail (1) is jointly installed on the two handrail supports;

The utility model discloses a liquid storage device, including box (21) and water outlet pipe, drive assembly is installed in the inside rotation of box (21), drive assembly is installed to the upper surface mounting of box (21), drive assembly and the upper end of pivot (28) are connected, the mid-mounting of pivot (28) has V template (22), the upper surface of V template (22) encloses with box (21) inner wall and closes and form the mixing chamber, the lower surface of V template (22) encloses with box (21) inner wall and closes and form the working chamber, install stirring subassembly on pivot (28), stirring subassembly is located the mixing chamber, round plate (27) are installed to the lower extreme of pivot (28), two first erection columns (29) of mutual symmetry are installed to the upper surface mounting of round plate (27), rotation installs connecting rod (23) on first erection column (29), the other end upper surface rotation of connecting rod (23) installs second erection column (30), the spout has all been seted up to the both sides of box (21), interior sliding groove (14) are installed second mounting plate (14), second inner end (14) are installed under the second erection column (14) and second installation plate (14) are installed to the second and are installed to the second surface mounting plate (14), and are evenly open the water outlet pipe (14), the lower end of the second water outlet pipe (26) is provided with a second spray head (13), and the second spray head (13) is positioned outside the box body (21);

the front end of box (21) is arc form, arc logical groove (15) have been seted up at the front end middle part of box (21), limit groove (16) have all been seted up to the upper and lower surface of arc logical groove (15), install first mounting panel (10) on pivot (28), first reservoir (19) have been seted up to the inside of first mounting panel (10), the stopper is all installed to the upper and lower surface of first mounting panel (10), stopper and limit groove (16) sliding connection, the front end protrusion of first mounting panel (10) is in box (21), a plurality of first outlet pipes (8) are installed to the lower surface of first mounting panel (10) front end even interval, first shower nozzle (9) are installed to the front end lower surface of first outlet pipe (8), first shower nozzle (9) are located the outside of box (21);

The inside of pivot (28) has seted up circular slot (17), two medicine feed holes have been seted up along the inner wall upper portion of circular slot (17), medicine feed hole is located in the mixing chamber, first logical groove (18) have been seted up to the inside lateral wall of first stock solution chamber (19), first stock solution chamber (19) and circular slot (17) intercommunication, hose (24) are all installed to the both sides of first mounting panel (10), the other end and the second mounting panel (14) of hose (24) are connected, first stock solution chamber (19), hose (24) and second stock solution chamber (25) communicate each other.

2. The plant protection machine for agricultural and forestry spraying according to claim 1, wherein: the stirring assembly comprises an annular plate (33) which is rotatably arranged on a rotating shaft (28), a plurality of stirring rods (20) are uniformly arranged on the outer surface of the annular plate (33) at intervals, hinge supports (31) are arranged on two sides of the upper surface of the annular plate (33), an L-shaped support (32) is rotatably arranged on the hinge supports (31) through a third pin shaft, two clamping grooves are formed in the outer surface of the rotating shaft (28), and the upper ends of the L-shaped supports (32) are connected with corresponding clamping groove buckles.

3. The plant protection machine for agricultural and forestry spraying according to claim 1, wherein: the medicine box is characterized by further comprising a guide post (6) and a handle (7), wherein a through hole is formed in the front end of the box body (21), the guide post (6) sequentially penetrates through the through hole and the two medicine inlet holes in a sliding mode, and the handle (7) is arranged at the outer end of the guide post (6).

4. The plant protection machine for agricultural and forestry spraying according to claim 1, wherein: the driving assembly comprises a motor support (2) arranged on the upper surface of the box body (21), a motor (3) is arranged on the motor support (2), an output shaft of the motor (3) is connected to the upper end of the rotating shaft (28) through a coupling, and an input end of the motor (3) is electrically connected with an output end of an external controller.