阅读说明：本技术 一种安全系数高的智能割草设备 (Intelligent mowing equipment with high safety factor ) 是由 王慧芝 于 2020-06-23 设计创作，主要内容包括：本发明涉及一种安全系数高的智能割草设备,包括主体、传动轴和刀片,所述主体的形状为长方体,所述主体的底部设有装配孔,所述装配孔的孔径大于传动轴的直径,所述传动轴竖向穿过装配孔,所述刀片安装在传动轴的底端,所述主体内设有驱动装置,所述驱动装置与传动轴的顶端传动连接,所述主体的底部设有移动装置,所述主体上设有智能控制系统,所述主体内设有辅助机构,所述主体的底部设有两个收集机构,所述刀片位于两个收集机构之间,该安全系数高的智能割草设备通过辅助机构提升了割草的效果,防止草坍塌而无法与刀片接触,不仅如此,还通过收集机构防止刀片与石块接触而造成刀片的损坏,同时也可以避免刀片击飞石块而伤人,提高了安全性。(The invention relates to intelligent mowing equipment with high safety factor, which comprises a main body, a transmission shaft and a blade, wherein the main body is in a cuboid shape, the bottom of the main body is provided with an assembling hole, the aperture of the assembling hole is larger than the diameter of the transmission shaft, the transmission shaft vertically penetrates through the assembling hole, the blade is arranged at the bottom end of the transmission shaft, a driving device is arranged in the main body and is in transmission connection with the top end of the transmission shaft, the bottom of the main body is provided with a moving device, an intelligent control system is arranged on the main body, an auxiliary mechanism is arranged in the main body, the bottom of the main body is provided with two collecting mechanisms, the blade is positioned between the two collecting mechanisms, the intelligent mowing equipment with high safety factor improves mowing effect through the auxiliary mechanism, prevents grass from collapsing and being incapable of contacting with the blade, and prevents the blade from being damaged due to, meanwhile, the blade can be prevented from hurting people due to the fact that the blade strikes the flying stone block, and safety is improved.)

1. The utility model provides an intelligent mowing equipment that factor of safety is high, includes main part (1), transmission shaft (2) and blade (3), the shape of main part (1) is the cuboid, the bottom of main part (1) is equipped with the pilot hole, the aperture of pilot hole is greater than the diameter of transmission shaft (2), transmission shaft (2) vertically pass the pilot hole, the bottom at transmission shaft (2) is installed in blade (3), be equipped with drive arrangement in main part (1), drive arrangement is connected with the top transmission of transmission shaft (2), the bottom of main part (1) is equipped with the mobile device, be equipped with intelligent control system on main part (1), its characterized in that, be equipped with auxiliary mechanism in main part (1), the bottom of main part (1) is equipped with two and collects the mechanism, blade (3) are located between two and collect the mechanism;

the auxiliary mechanism comprises an air pipe (4), fan blades (5), a rotating shaft (6), a first bearing (7), a driving bevel gear (8), a driven bevel gear (9) and a rotating disc (10), an air outlet is formed in one side of the main body (1), the axis of the air pipe (4) is perpendicular to and intersected with the axis of the transmission shaft (2), the air pipe (4) penetrates through the air outlet, the air pipe (4) is sealed and fixedly connected with the inner wall of the air outlet, the rotating shaft (6) and the air pipe (4) are coaxially arranged, the fan blades (5) are arranged in the air pipe (4) and are arranged at one end of the rotating shaft (6), the driven bevel gear (9) is arranged at the other end of the rotating shaft (6), the inner ring of the first bearing (7) is arranged on the rotating shaft (6), the outer ring of the first bearing (7) is fixedly connected with the inner wall of the main body (, the driving bevel gear (8) is installed on the transmission shaft (2) and meshed with the driven bevel gear (9), the rotating disc (10) is coaxially arranged with the transmission shaft (2) and attached to the bottom of the main body (1), a through hole is formed in the rotating disc (10), the transmission shaft (2) penetrates through the through hole, the transmission shaft (2) is hermetically and fixedly connected with the inner wall of the through hole, the rotating disc (10) is covered on the assembling hole, at least two air inlets are formed in the rotating disc (10), the air inlets are circumferentially and uniformly distributed by taking the axis of the transmission shaft (2) as the center, the air inlets are communicated with the assembling hole, and a filter screen (11) is installed in each air inlet;

the collecting mechanism comprises a connecting rod (12), a second bearing (13), a connecting shaft (14), two collecting discs (15) and at least two elastic wires (16), the axis of the connecting shaft (14) is vertical to and intersected with the axis of the transmission shaft (2), the collecting discs (15) are coaxially arranged with the connecting shaft (14), a gap is formed between the two collecting discs (15) and the two collecting discs are fixedly connected, the connecting shaft (14) is fixed on one side of the collecting disc (15) close to the axis of the transmission shaft (2) and close to the axis of the transmission shaft (2), the inner ring of the second bearing (13) is arranged on the connecting shaft (14), the outer ring of the second bearing (13) is fixed on the rotating disc (10) through a connecting rod (12), the elastic wires (16) are uniformly arranged between the two collecting discs (15) in the circumferential direction by taking the axis of the connecting shaft (14) as the center, two ends of the elastic wire (16) are respectively fixed on the two collecting discs (15).

2. The intelligent mowing device with the high safety factor according to claim 1, wherein the driving device comprises a driving motor (17), a driving wheel (18), a driven wheel (19), a third bearing (20) and a transmission belt (21), the driven wheel (19) is installed at the top end of the transmission shaft (2), the driving motor (17) is fixed on the inner wall of the main body (1) and is in transmission connection with the driving wheel (18), the driving wheel (18) and the driven wheel (19) are respectively arranged at two ends of the inner side of the transmission belt (21), the inner ring of the third bearing (20) is installed on the transmission shaft (2), and the outer ring of the third bearing (20) is fixedly connected with the inner wall of the main body (1).

3. The high-safety intelligent mowing device according to claim 2, wherein the driving motor (17) is a servo motor.

4. The high-safety intelligent mowing device according to claim 1, wherein a photovoltaic panel (22) is arranged on the top of the main body (1).

5. The intelligent high-safety mowing device according to claim 1, wherein the number of teeth of the driving bevel gear (8) is greater than that of the driven bevel gear (9).

6. The high-safety intelligent mowing device according to claim 1, wherein the joint of the rotating disc (10) and the main body (1) is coated with sealing grease.

7. The high-safety intelligent mowing device according to claim 1, wherein the drive bevel gear (8) is coated with lubricating oil.

8. The intelligent high-safety mowing device according to claim 1, wherein an anti-corrosion zinc coating is arranged on the transmission shaft (2).

9. The intelligent mowing device with the high safety factor as claimed in claim 1, wherein two sound-absorbing plates (23) are arranged in the main body (1), and the sound-absorbing plates (23) correspond to the connecting shaft (14) one by one and are fixed on the inner wall of the main body (1).

10. The intelligent mowing device with the high safety factor as claimed in claim 1, wherein chamfers are arranged at two ends of the transmission shaft (2).

Technical Field

The invention relates to the field of intelligent equipment, in particular to intelligent mowing equipment with high safety coefficient.

Background

The intelligent device is any device, instrument or machine with calculation processing capacity, wherein the intelligent mower is one type of intelligent device, has the functions of automatic walking, collision prevention, wire outgoing prevention within a range, automatic return charging, safety detection, battery power detection and the like, and also has certain climbing capacity.

Current intelligent lawn mower in the use, when subaerial when having the stone, the blade takes place to strike with the stone and easily makes the blade damage, moreover, still easily makes the stone departure hurt people, has reduced the security, moreover, subaerial grass often can realize the phenomenon of collapsing, leads to the blade can't use on the grass, can't normally realize mowing promptly, has reduced the practicality.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome prior art's not enough, provide the intelligent mowing equipment that a factor of safety is high.

The technical scheme adopted by the invention for solving the technical problems is as follows: an intelligent mowing device with high safety factor comprises a main body, a transmission shaft and a blade, wherein the main body is in a cuboid shape, an assembly hole is formed in the bottom of the main body, the aperture of the assembly hole is larger than the diameter of the transmission shaft, the transmission shaft vertically penetrates through the assembly hole, the blade is installed at the bottom end of the transmission shaft, a driving device is arranged in the main body and is in transmission connection with the top end of the transmission shaft, a moving device is arranged at the bottom of the main body, an intelligent control system is arranged on the main body, an auxiliary mechanism is arranged in the main body, two collecting mechanisms are arranged at the bottom of the main body, and the blade is located between the;

the auxiliary mechanism comprises an air pipe, fan blades, a rotating shaft, a first bearing, a driving bevel gear, a driven bevel gear and a rotating disc, wherein an air outlet is formed in one side of the main body, the axis of the air pipe is perpendicular to and intersected with the axis of the transmission shaft, the air pipe penetrates through the air outlet, the air pipe is hermetically and fixedly connected with the inner wall of the air outlet, the rotating shaft and the air pipe are coaxially arranged, the fan blades are arranged in the air pipe and are arranged at one end of the rotating shaft, the driven bevel gear is arranged at the other end of the rotating shaft, the inner ring of the first bearing is arranged on the rotating shaft, the outer ring of the first bearing is fixedly connected with the inner wall of the main body, the driving bevel gear is arranged on the transmission shaft and is meshed with the driven bevel gear, the rotating disc is coaxially arranged with the transmission, the transmission shaft is hermetically and fixedly connected with the inner wall of the through hole, the rotating disc is covered on the assembly hole, the rotating disc is provided with at least two air inlet holes, the air inlet holes are circumferentially and uniformly distributed by taking the axis of the transmission shaft as a center, the air inlet holes are communicated with the assembly hole, and a filter screen is arranged in each air inlet hole;

the collecting mechanism comprises a connecting rod, a second bearing, a connecting shaft, two collecting discs and at least two elastic wires, the axis of the connecting shaft is perpendicular to and intersected with the axis of the transmission shaft, the collecting discs are coaxially arranged with the connecting shaft, a gap and a fixed connection are formed between the two collecting discs, the connecting shaft is fixed on one side, close to the axis of the transmission shaft, of the collecting disc close to the axis of the transmission shaft, the inner ring of the second bearing is installed on the connecting shaft, the outer ring of the second bearing is fixed on the rotating disc through the connecting rod, the elastic wires are evenly arranged between the two collecting discs by taking the axis of the connecting shaft as the central circumferential direction, and the two ends of the elastic wires are fixed on.

Preferably, in order to realize the rotation of the transmission shaft, the driving device comprises a driving motor, a driving wheel, a driven wheel, a third bearing and a transmission belt, the driven wheel is installed at the top end of the transmission shaft, the driving motor is fixed on the inner wall of the main body and is in transmission connection with the driving wheel, the driving wheel and the driven wheel are respectively arranged at two ends of the inner side of the transmission belt, an inner ring of the third bearing is installed on the transmission shaft, and an outer ring of the third bearing is fixedly connected with the inner wall of the main body.

Preferably, the drive motor is a servo motor in order to increase the drive force of the drive motor.

Preferably, in order to realize energy conservation, the top of the main body is provided with a photovoltaic panel.

Preferably, the number of teeth of the driving bevel gear is greater than the number of teeth of the driven bevel gear in order to improve a heat dissipation effect.

Preferably, in order to reduce a gap between the rotary disk and the main body, a junction of the rotary disk and the main body is coated with a sealing grease.

Preferably, the driving bevel gear is coated with a lubricating oil in order to reduce a frictional force between the driving bevel gear and the driven bevel gear.

Preferably, in order to prolong the service life of the transmission shaft, the transmission shaft is provided with an anti-corrosion zinc coating.

Preferably, in order to reduce noise, two sound-absorbing plates are arranged in the main body, correspond to the connecting shafts one by one and are fixed on the inner wall of the main body.

Preferably, in order to facilitate the installation of the rotating disc, chamfers are arranged at two ends of the transmission shaft.

The intelligent mowing equipment with the high safety factor has the advantages that the mowing effect is improved through the auxiliary mechanism, grass is prevented from collapsing and cannot be in contact with the blade, the auxiliary mechanism can further achieve heat dissipation of the main body compared with the existing auxiliary mechanism, grass intercepted on the filter screen can be separated from the filter screen under the action of centrifugal force through rotation of the rotating disc, the filter screen is prevented from being blocked, and not only is the practicability stronger, but also the damage of the blade caused by the contact of the blade and the stone is prevented through the collecting mechanism, meanwhile, the phenomenon that the blade hits the flying stone block to hurt people is avoided, the safety is improved, compared with the existing collecting mechanism, the collecting mechanism can further achieve the function of collecting the stone, and the practicability is stronger.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a high-safety intelligent mowing apparatus of the invention;

FIG. 2 is a cross-sectional view of a high-margin intelligent mowing device of the invention;

FIG. 3 is a schematic structural view of an auxiliary mechanism of the high-safety intelligent mowing device of the invention;

FIG. 4 is a schematic view of the collection mechanism of the high safety smart lawn mowing device of the present invention;

in the figure: 1. the wind power generator comprises a main body, 2. a transmission shaft, 3. a blade, 4. an air pipe, 5. a fan blade, 6. a rotating shaft, 7. a first bearing, 8. a driving bevel gear, 9. a driven bevel gear, 10. a rotating disc, 11. a filter screen, 12. a connecting rod, 13. a second bearing, 14. a connecting shaft, 15. a collecting disc, 16. an elastic wire, 17. a driving motor, 18. a driving wheel, 19. a driven wheel, 20. a third bearing, 21. a driving belt, 22. a photovoltaic panel and 23. a sound absorption panel.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1-3, the intelligent mowing device with high safety factor comprises a main body 1, a transmission shaft 2 and a blade 3, wherein the main body 1 is cuboid, an assembly hole is formed in the bottom of the main body 1, the aperture of the assembly hole is larger than the diameter of the transmission shaft 2, the transmission shaft 2 vertically penetrates through the assembly hole, the blade 3 is installed at the bottom end of the transmission shaft 2, a driving device is arranged in the main body 1 and is in transmission connection with the top end of the transmission shaft 2, a moving device is arranged at the bottom of the main body 1, an intelligent control system is arranged on the main body 1, an auxiliary mechanism is arranged in the main body 1, two collecting mechanisms are arranged at the bottom of the main body 1, and the blade 3 is located between the two collecting;

the auxiliary mechanism comprises an air pipe 4, fan blades 5, a rotating shaft 6, a first bearing 7, a driving bevel gear 8, a driven bevel gear 9 and a rotating disc 10, wherein an air outlet is formed in one side of the main body 1, the axis of the air pipe 4 is perpendicular to and intersected with the axis of the transmission shaft 2, the air pipe 4 penetrates through the air outlet, the air pipe 4 is hermetically and fixedly connected with the inner wall of the air outlet, the rotating shaft 6 is coaxially arranged with the air pipe 4, the fan blades 5 are arranged in the air pipe 4 and are arranged at one end of the rotating shaft 6, the driven bevel gear 9 is arranged at the other end of the rotating shaft 6, the inner ring of the first bearing 7 is arranged on the rotating shaft 6, the outer ring of the first bearing 7 is fixedly connected with the inner wall of the main body 1, the driving bevel gear 8 is arranged on the transmission shaft 2 and is meshed with the driven bevel gear 9, the rotating, the rotary disc 10 is provided with a through hole, the transmission shaft 2 penetrates through the through hole, the transmission shaft 2 is hermetically and fixedly connected with the inner wall of the through hole, the rotary disc 10 covers the assembly hole, the rotary disc 10 is provided with at least two air inlets, the air inlets are circumferentially and uniformly distributed by taking the axis of the transmission shaft 2 as the center, the air inlets are communicated with the assembly hole, and each air inlet is internally provided with a filter screen 11;

during the use of the equipment, the main body 1 is moved on the ground through the moving device, the transmission shaft 2 drives the blade 3 to rotate through the driving device, the grass can be mowed through the rotation of the blade 3, in addition, the intelligent control is realized through the intelligent control system, during the period, the rotation of the transmission shaft 2 drives the driving bevel gear 8 to rotate, the rotation of the driving bevel gear 8 drives the rotating shaft 6 to rotate under the supporting action of the first bearing 7 through the driven bevel gear 9, namely, the fan blades 5 can be enabled to rotate, the air in the main body 1 is exhausted from the air pipe 4 through the rotation of the fan blades 5, the air outside the main body 1 is sequentially sucked into the main body 1 from the air inlet hole and the assembly hole, the grass collapsed on the ground can be subjected to upward pulling force under the action of the air flow, the height of the collapsed grass can be improved, the grass can be conveniently contacted with the blade 3 to mow, can also discharge the heat in the main part 1, realize the heat dissipation, moreover, the grass of cutting off can be held back on filter screen 11 under the effect of air current, and the rotation of transmission shaft 2 still drives rolling disc 10 and rotates, and the rotation through rolling disc 10 makes the grass of holding back on the filter screen 11 remove and with rolling disc 10 separation towards keeping away from 2 axis directions of transmission shaft under the effect of centrifugal force, prevents that filter screen 11 from blockking up.

As shown in fig. 4, the collecting mechanism includes a connecting rod 12, a second bearing 13, a connecting shaft 14, two collecting trays 15 and at least two elastic wires 16, the axis of the connecting shaft 14 is perpendicular to and intersects with the axis of the transmission shaft 2, the collecting trays 15 are coaxial with the connecting shaft 14, the two collecting trays 15 are in clearance and fixed connection, the connecting shaft 14 is fixed on one side, close to the axis of the transmission shaft 2, of the collecting tray 15 close to the axis of the transmission shaft 2, the inner ring of the second bearing 13 is installed on the connecting shaft 14, the outer ring of the second bearing 13 is fixed on the rotating disc 10 through the connecting rod 12, the elastic wires 16 are circumferentially and uniformly arranged between the two collecting trays 15 with the axis of the connecting shaft 14 as the center, and two ends of the elastic wires 16 are respectively fixed on the two collecting.

The rotation of rolling disc 10 drives connecting rod 12 to realize synchronous rotation, the rotation of connecting rod 12 makes connecting axle 14 rotate round the axis of transmission shaft 2 through second bearing 13, can be so that collecting tray 15 rotates round the turning of transmission shaft 2, in fact, collecting tray 15 supports with ground and supports, thereby can make collecting tray 15 drive connecting axle 14 rotate under the supporting role of second bearing 13, when elastic thread 16 supports with the stone and supports, can make the stone cause the extrusion and produce deformation to elastic thread 16, make the stone pass elastic thread 16, subsequently, elastic action through elastic thread 16 is elastic thread 16 resumes, can realize the function of collecting the stone, prevent that blade 3 from contacting with the stone and causing the damage of blade 3, also can avoid blade 3 to hit flying stone simultaneously and injure the people, the security has been improved.

Preferably, in order to realize the rotation of the transmission shaft 2, the driving device comprises a driving motor 17, a driving wheel 18, a driven wheel 19, a third bearing 20 and a transmission belt 21, the driven wheel 19 is installed at the top end of the transmission shaft 2, the driving motor 17 is fixed on the inner wall of the main body 1 and is in transmission connection with the driving wheel 18, the driving wheel 18 and the driven wheel 19 are respectively arranged at two ends of the inner side of the transmission belt 21, the inner ring of the third bearing 20 is installed on the transmission shaft 2, and the outer ring of the third bearing 20 is fixedly connected with the inner wall of the main body 1.

The driving motor 17 is started to rotate the driving wheel 18, the rotation of the driving wheel 18 drives the driving wheel to rotate through the driving belt 21, and the rotation of the driven wheel 19 drives the transmission shaft 2 to rotate under the supporting action of the third bearing 20.

Preferably, the driving motor 17 is a servo motor in order to increase the driving force of the driving motor 17.

The servo motor has a characteristic of strong overload capability, so that the driving force of the driving motor 17 can be improved.

Preferably, in order to save energy, the top of the main body 1 is provided with a photovoltaic panel 22.

The photovoltaic panel 22 can absorb light to realize photovoltaic power generation, and the generated energy can be provided for the equipment to use, so that energy conservation is realized.

Preferably, the number of teeth of the driving bevel gear 8 is greater than that of the driven bevel gear 9 in order to improve a heat dissipation effect.

In the gear drive, the number of teeth is inversely proportional to the rotational speed to can improve driven bevel gear 9's rotational speed, can improve the rotation of flabellum 5, can improve the velocity of flow of air in main part 1 through the rotational speed that improves flabellum 5, and then can promote main part 1 radiating effect, in addition, through the velocity of flow that improves the air, can improve the suction of inlet port to grass, be convenient for the pulling grass to remove towards being close to main part 1 direction.

Preferably, in order to reduce the gap between the rotating disc 10 and the main body 1, the joint of the rotating disc 10 and the main body 1 is coated with a sealing grease.

The sealing grease functions to reduce the gap between the rotating disk 10 and the main body 1, and improves the sealing property.

Preferably, the driving bevel gear 8 is coated with a lubricating oil in order to reduce the frictional force between the driving bevel gear 8 and the driven bevel gear 9.

The lubricating oil has the function of reducing the friction force between the driving bevel gear 8 and the driven bevel gear 9, and the smoothness of driving the driven bevel gear 9 to rotate by the driving bevel gear 8 is improved.

Preferably, in order to prolong the service life of the transmission shaft 2, the transmission shaft 2 is provided with an anti-corrosion zinc coating.

The function of anticorrosive galvanizing coat is to promote the rust-resistant ability of transmission shaft 2, prolongs the life of transmission shaft 2.

Preferably, in order to reduce noise, two sound-absorbing plates 23 are arranged in the main body 1, and the sound-absorbing plates 23 correspond to the connecting shafts 14 one by one and are fixed on the inner wall of the main body 1.

The sound-absorbing plate 23 can absorb noise inside the main body 1, achieving noise reduction.

Preferably, both ends of the transmission shaft 2 are chamfered to facilitate the installation of the rotary disk 10.

The chamfer has the effect of reducing the caliber of the transmission shaft 2 when passing through the through hole and facilitating the installation of the rotating disc 10.

During the use of the equipment, the main body 1 is moved on the ground through the moving device, the transmission shaft 2 drives the blade 3 to rotate through the driving device, the grass can be mowed through the rotation of the blade 3, in addition, the intelligent control is realized through the intelligent control system, during the period, the rotation of the transmission shaft 2 drives the driving bevel gear 8 to rotate, the rotation of the driving bevel gear 8 drives the rotating shaft 6 to rotate under the supporting action of the first bearing 7 through the driven bevel gear 9, namely, the fan blades 5 can be enabled to rotate, the air in the main body 1 is exhausted from the air pipe 4 through the rotation of the fan blades 5, the air outside the main body 1 is sequentially sucked into the main body 1 from the air inlet hole and the assembly hole, the grass collapsed on the ground can be subjected to upward pulling force under the action of the air flow, the height of the collapsed grass can be improved, the grass can be conveniently contacted with the blade 3 to mow, the heat in the main body 1 can be discharged, heat dissipation is realized, and cut grass can be intercepted on the filter screen 11 under the action of air flow, the rotation of the transmission shaft 2 also drives the rotating disc 10 to rotate, grass intercepted on the filter screen 11 moves towards the direction far away from the axis of the transmission shaft 2 and is separated from the rotating disc 10 under the action of centrifugal force through the rotation of the rotating disc 10, the filter screen 11 is prevented from being blocked, in addition, the rotation of the rotating disc 10 drives the connecting rod 12 to synchronously rotate, the connecting rod 12 rotates to enable the connecting shaft 14 to rotate around the axis of the transmission shaft 2 through the second bearing 13, namely, the collecting disc 15 can rotate around the steering of the transmission shaft 2, in fact, the collecting disc 15 is abutted against the ground, so that the collecting disc 15 can drive the connecting shaft 14 to rotate under the supporting action of the second bearing 13, when the elastic wire 16 abuts against the stone, the elastic wire 16 can be extruded and deform, the stone is made to pass through the elastic thread 16, and then the elastic thread 16 is recovered through the elastic action of the elastic thread 16, so that the function of collecting the stone can be realized, the damage of the blade 3 caused by the contact of the blade 3 and the stone is prevented, meanwhile, the phenomenon that the blade 3 damages people due to the stone flying is avoided, and the safety is improved.

Compared with the prior art, this intelligent mowing equipment that factor of safety is high has promoted the effect of mowing through complementary unit, prevent that the grass from collapsing and unable and blade 3 contact, compare with current complementary unit, this complementary unit can also realize the heat dissipation to main part 1, and, through the rotation of rolling disc 10, can make the grass of holding back on the filter screen 11 separate with filter screen 11 under the effect of centrifugal force, prevent that filter screen 11 from blockking up, the practicality is stronger, moreover, still prevent blade 3 and stone contact and cause the damage of blade 3 through collecting the mechanism, also can avoid blade 3 to hit to fly the stone and injure people simultaneously, the security has been improved, compare with current collection mechanism, this collection mechanism can also realize the function of collecting the stone, the practicality is stronger.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.