An airflow-supplied intelligent lawn mowing power machine

Abstract

The present invention discloses an airflow-supplying intelligent lawn mowing power machine, which relates to the technical field of lawn mowers, including a lawn mowing mechanism, a lawn mowing supporting and moving mechanism, a blade protection mechanism, a handheld control mechanism and a grass blowing and heat dissipation multifunctional mechanism. The lawn mowing mechanism includes a fan-shaped bottom cover, a lawn mowing blade and a power component. The top of the fan-shaped bottom cover is fixedly connected to a fan-shaped cover plate by fixing screws. The rotating drum is rotatably installed at the center of the circle where the fan-shaped bottom cover is located. Six mounting through holes are provided in a circular array on the side of the rotating drum, and a blade handle is respectively inserted in each mounting through hole. The airflow-supplying intelligent lawn mowing power machine has good protection for the lawn mowing blade. The rectangular lawn mowing blade is not prone to high temperature conditions. When the rectangular lawn mowing blade is damaged, only the damaged one needs to be replaced, and the entire blade does not need to be replaced. The power mechanism of the lawn mower is cooled by supplying air to avoid high temperature conditions that affect its continuous operation.

Description

Technical Field

[0001] The present invention relates to the technical field of lawn mowers, and in particular to an airflow-supplying intelligent lawn mowing power machine. Background Art

[0002] At present, in the fields of agriculture and gardening, intelligent mowing power machines are commonly used. Due to the time-consuming and labor-intensive nature of mowing, mechanization is a necessary measure to improve the quality and efficiency of mowing. Therefore, most mowing machines are intelligent mowing power machines. In order to overcome the problem of heating of the cutting blade due to long-term rotation, new mowing power machines have been introduced that introduce airflow supply to effectively cool and dissipate heat. For example, hand-held airflow supply intelligent mowing power machines can easily cause some grass to be retained in the protective cover due to the increased power.

[0003] To address the above issues, Chinese invention patent CN113826477B discloses an airflow-fed intelligent lawn mowing power machine. The machine comprises a hand lever mechanism and a power mechanism mounted at the bottom end of the hand lever mechanism. The power mechanism is provided with a rotating shaft with a cutting blade mounted at the bottom. A protective cover surrounding the outer side of the cutting blade is provided at the rear side of the bottom of the power mechanism. The inner cavity of the protective cover is provided with two cleaning covers with inner ends in contact with each other. When the cleaning cover is in operation, it cleans out the grass material trapped in the protective cover.

[0004] Although this patent solves the problem of grass retention in the protective cover increasing the rotational resistance of the cutting blade, the following defects still exist: there may be hard debris such as gravel on the grass, which can easily damage the high-speed rotating cutting blade. Once the cutting blade is damaged, it needs to be replaced as a whole, which wastes resources. When mowing the lawn, not only will the cutting blade be exposed to high temperature, but the power mechanism of the lawn mower is also highly loaded and is also prone to high temperature, which also affects the continuous operation of the lawn mower. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide an airflow-supplied intelligent mowing power machine. A blade protection mechanism is adopted to prevent hard debris such as gravel from contacting the mowing blade, thereby providing good protection for the mowing blade and reducing the probability of damage to the mowing blade. The circular cutting disc is improved into rectangular mowing blades installed on the rotating drum. The rectangular mowing blades have a large contact area with the air when rotating and are not prone to high temperature conditions. When the rectangular mowing blades are damaged, only the damaged one needs to be replaced, and the entire blade does not need to be replaced, which can avoid waste of resources. The power mechanism of the mower is cooled by supplying airflow to avoid high temperature conditions that affect its continuous operation. The supplied airflow can blow away the cut grass to avoid the cut grass entering the fan-shaped bottom cover and increasing the resistance of the mowing blade. The problem of grass retention in the fan-shaped bottom cover is fundamentally solved, and the problems in the background technology can be effectively solved.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an airflow-supplying intelligent lawn mowing power machine, comprising:

[0007] The mowing mechanism includes a fan-shaped bottom cover, fixing screws, a fan-shaped cover plate, a rotary drum, a mounting through-hole, a knife handle, a mowing blade and a power assembly. The top of the fan-shaped bottom cover is fixedly connected to the fan-shaped cover plate by fixing screws. The rotary drum is rotatably mounted at the center of the circle where the fan-shaped bottom cover is located. Six mounting through-holes are provided in a circular array on the side of the rotary drum. A knife handle is inserted into each mounting through-hole. A knife handle disassembly and fixing mechanism is installed in the rotary drum. The knife handle disassembly and fixing mechanism is connected to one end of the knife handle located in the rotary drum. The outer end of the knife handle is fixedly connected to the mowing blade. The top of the rotary drum is connected to the power assembly.

[0008] The mowing support moving mechanism is provided with three and is respectively installed at the bottom of the three corners of the fan-shaped bottom cover;

[0009] A blade protection mechanism is mounted on the bottom front side of the fan-shaped bottom cover;

[0010] The handheld control mechanism is installed on the middle part of the upper side of the fan-shaped cover;

[0011] The multifunctional mechanism for blowing grass and dissipating heat is installed on the upper side of the fan-shaped cover.

[0012] The fan-shaped cover is installed on the top of the fan-shaped bottom cover by fixing screws to form a protective cover for protecting the mowing blade. The fan-shaped cover can be removed with the help of fixing screws, so as to facilitate the installation or removal of the rotary drum. The mounting through hole on the rotary drum is used to install the knife handle, which is used to fix the mowing blade. A complete circular mowing piece is improved into individual mowing blades. After damage, they can be replaced individually, which reduces costs and waste of resources. The power component drives the rotary drum to work and rotate in the protective cover, thereby driving the mowing blade on the knife handle to mow the grass, and the mowing support moving mechanism moves the bottom of the fan-shaped bottom cover. The support makes it convenient to push the fan-shaped bottom cover forward to change the mowing position. The blade protection mechanism is installed on the front side of the fan-shaped bottom cover. As the protection cover moves forward, the grass is allowed to contact the mowing blade and be cut, but it can prevent hard debris such as gravel from contacting the mowing blade, thereby protecting the mowing blade. The handheld control mechanism is used for handheld control of the movement of the protection cover. The grass blowing and heat dissipation multifunctional mechanism can blow air to dissipate heat to the power component, so that the power component can maintain normal operating temperature and continue to work. At the same time, it can blow away the grass cut by the mowing blade to prevent the cut grass from being retained in the protection cover with the mowing blade.

[0013] Furthermore, the power assembly includes a circular cover, mounting bolts, a rotating shaft, and a mowing motor. The top opening of the rotating drum is fixedly connected to the circular cover via mounting bolts. The top center of the circular cover and the bottom center of the rotating drum are respectively fixedly connected to the rotating shaft. The rotating shaft at the bottom of the rotating drum is rotatably connected to the center of the fan-shaped bottom cover via a bearing. The rotating shaft at the top of the circular cover is rotatably connected to the fan-shaped cover plate via a bearing. The top end of the rotating shaft at the top of the circular cover is fixedly connected to the output shaft of the mowing motor, and the mowing motor is fixedly mounted on the upper side of the fan-shaped cover plate. The circular cover is fixed to the top opening of the rotating drum via mounting bolts to form a rotor. The two ends of the rotor are rotatably mounted to the center of the circle in the protective cover via rotating shafts. The operation of the mowing motor drives the rotor to rotate, thereby driving the mowing blade to rotate through the blade handle to complete the mowing work.

[0014] Furthermore, the tool handle disassembly and fixing mechanism includes a groove, a rebound assembly, a fixing post, and a fixing lug. Each tool handle, located within the rotating drum, is fixedly connected to a fixing lug at one end. A groove is defined within the bottom of the rotating drum, within which a rebound assembly is mounted. A fixing post corresponding to each fixing lug is fixedly connected to the rebound assembly, which engages with a fixing hole in the corresponding fixing lug. The groove is used to accommodate the rebound assembly, which pushes the fixing post upward, allowing the fixing post to engage stably with the fixing lug, thereby firmly securing the tool handle within the mounting hole and preventing the centrifugal force of the rotor's high rotation from causing the tool handle to disengage from the mounting hole.

[0015] Furthermore, the rebound assembly includes a sliding sleeve, a sliding column, a spoke rod, a compression spring and a limit nut. The sliding column is fixedly connected to the middle of the groove, the sliding sleeve is vertically slidably connected to the middle of the sliding column, and six spoke rods are fixedly connected to the annular array on the outer periphery of the sliding sleeve. The top of each spoke rod is fixedly connected to the bottom end of the fixed column away from the sliding sleeve. The top end of the sliding column is threadedly connected to the limit nut, and the compression spring is sleeved on the position of the sliding column below the sliding sleeve.

[0016] The compression spring pushes the sliding sleeve to move upward along the sliding post, so that the sliding sleeve, spoke rod and fixed post always have a tendency to move upward. The limit nut prevents the elastic force of the compression spring from causing the sliding sleeve to disengage from the top of the sliding post. The spoke rod can drive the fixed post to move upward as the sliding sleeve moves upward, so that the fixed post can be plugged into the fixing hole on the fixed ear seat. When the knife handle and mowing blade need to be disassembled and replaced, the sliding sleeve and spoke rod are pressed downward along the sliding post to compress the compression spring, and the fixed post can be lowered to disengage from the fixed ear seat. At this time, the fixed ear seat can be pulled out of the mounting hole along with the knife handle, and then a new knife handle, mowing blade and fixed ear seat are put in. The sliding sleeve and spoke rod are loosened, and the compression spring rebounds and extends, pushing the sliding sleeve, spoke rod and fixed post to move up again to engage the new fixed ear seat, thereby realizing the replacement of the knife handle and mowing blade.

[0017] Furthermore, the handle disassembly and fixing mechanism includes a clamping post. The bottom of the circular cover is fixedly connected to a position corresponding to each handle, and the bottom end of the clamping post is clamped into the corresponding clamping hole on the handle. When the circular cover is fixed to the rotating drum, the clamping post is also inserted into the clamping hole on the handle, further reinforcing the clamping of the handle and making the handle more firmly fixed in the mounting hole. The mounting bolts on the circular cover can also be arranged corresponding to the mounting holes, so that the bottom of the mounting bolts can also be set to press against the upper side of the handle, further improving the fixing effect of the handle.

[0018] Furthermore, the mowing support mechanism includes a mowing height adjustment assembly and universal wheels. Three mowing height adjustment assemblies are mounted at the bottom of each of the three corners of the fan-shaped bottom cover, and each mowing height adjustment assembly has a universal wheel mounted at its bottom. The mowing height adjustment assembly can adjust the distance between the universal wheel and the bottom of the fan-shaped bottom cover. A larger distance results in taller grass remaining on the lawn after mowing, while a smaller distance results in shorter grass remaining on the lawn after mowing. The height adjustment can be adjusted as needed.

[0019] Furthermore, the blade guard mechanism includes a disassembly bottom ring, a disassembly bolt, and a protective baffle. The bottom of the fan-shaped bottom cover is fixedly connected to the disassembly bottom ring via the disassembly bolt. The disassembly bottom ring is arranged concentrically with the fan-shaped bottom cover, and a plurality of protective baffles are fixedly connected at equal angles on the side of the disassembly bottom ring away from the fan-shaped bottom cover. The end of the protective baffle away from the disassembly bottom ring is bent upward by 90 degrees. The disassembly bolt is used to install and fix the disassembly bottom ring, and the disassembly bottom ring is used to install the protective baffle. Each protective baffle can comb the grass to be cut and block the grass roots at the same time, allowing the mowing blade to use shear force to cut the grass more easily, preventing the mowing blade from carrying uncut grass into the protective cover. The upwardly bent portion of the protective baffle can prevent hard debris such as stones from contacting the mowing blade and damaging the mowing blade, thereby providing good protection for the mowing blade.

[0020] Furthermore, the grass blowing and heat dissipation multifunctional mechanism includes an arc frame, an arc slide rail, an arc slider, a ventilation shell, a blowing hood, a flexible air pipe, an air pump, a direction height adjustment component, a pitch angle adjustment component and a positioning locking component. The arc frame is fixedly installed above the arc edge of the fan-shaped cover plate, and the inner side of the arc frame is integrally connected with an arc slide rail, and the arc slider is slidably connected to the arc slide rail. The top of the arc slider is connected to the upper side of the arc frame through the positioning locking component, and the inner side of the arc slider is installed with a direction height adjustment component, and the top of the direction height adjustment component is fixedly connected to the ventilation shell through the pitch angle adjustment component. One end of the ventilation shell is fixedly connected to the blowing hood, and the other end of the ventilation shell is connected to the air outlet of the air pump through a flexible air pipe, and the air pump is installed in the middle of the upper side of the fan-shaped cover plate.

[0021] The arc frame is used to install the arc slide rail. The arc slider can change the position of the blow hood and the ventilation shell by moving along the arc slide rail, and the blow hood and the ventilation shell can be switched on the left and right sides of the top of the protective cover, thereby changing the direction of the heat dissipation of the mowing motor. More importantly, the direction of blowing grass can be changed according to the natural wind direction, and the cut grass can be blown in the direction of the wind to prevent the cut grass from entering the protective cover with the mowing blade. The direction height adjustment component can facilitate changing the height and direction of the blow hood and the ventilation shell. The pitch angle adjustment component can change the pitch angle of the blow hood. The blow hood and the ventilation shell can be freely adjusted as needed. It has a high degree of freedom of use. The positioning locking component can lock the position of the arc slider on the arc slide rail. The air pump supplies air to the blow hood and the ventilation shell through the flexible air pipe, and then blows it to the required position through the blow hood.

[0022] Furthermore, the positioning locking assembly includes an arc groove, a bent frame, a sliding upright, a downward pressure spring, a positioning triangle block and a control circular block. An arc groove is provided on the upper side of the arc frame, and friction lines are provided in the arc groove. The top of the arc-shaped slider is fixedly connected to the bent frame, and the sliding upright is slidably connected in the vertical hole of the bent frame. The top of the sliding upright is connected to the control circular block. The bottom end of the sliding upright is fixedly connected to the positioning triangle block, and the bottom of the positioning triangle block extends into the arc groove, and the sliding upright is sleeved on the rod section between the bent frame and the positioning triangle block with a downward pressure spring.

[0023] The downward pressure spring has a tendency to stretch, causing the sliding rod to slide downward relative to the bent frame, so that the positioning triangle block is pressed into the friction pattern in the arc groove. The friction between the positioning triangle block and the friction pattern in the arc groove allows the position of the arc slider on the arc slide rail to be locked. When you want to make the arc slider slide along the arc slide rail, pull the sliding rod upward through the control circle block, the downward pressure spring is compressed, and the positioning triangle block is disengaged from the friction pattern in the arc groove. At this time, you can move the arc slider, and then release the control circle block. The downward pressure spring rebounds to lock the position of the arc slider on the arc slide rail again.

[0024] Furthermore, the handheld control mechanism includes an angle adjustment assembly, a handheld control lever, and a grip assembly. The upper side of the fan-shaped cover is connected to one end of the handheld control lever via the angle adjustment assembly, and the other end of the handheld control lever is mounted with the grip assembly. The angle adjustment assembly can adjust the angle between the handheld control lever and the upper side of the fan-shaped cover to facilitate use by people of different heights, and the grip assembly facilitates the grip of the handheld control lever.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the airflow supply type intelligent mowing power machine has the following advantages:

[0026] 1. The blade protection mechanism is used to prevent gravel and other hard debris from coming into contact with the mowing blade, providing good protection for the mowing blade and reducing the probability of damage to the mowing blade;

[0027] 2. The circular cutting discs are improved to rectangular mowing blades installed on the rotating drum. The rectangular mowing blades have a large contact area with the air when rotating, which is less likely to cause high temperature. When the rectangular mowing blade is damaged, only the damaged one needs to be replaced, not the entire blade, which can avoid waste of resources.

[0028] 3. By supplying airflow to cool the power mechanism of the lawn mower, it can avoid high temperature conditions that affect its continuous operation. The supplied airflow can blow away the cut grass to prevent the cut grass from entering the fan-shaped bottom cover and increasing the resistance of the mowing blade, fundamentally solving the problem of grass retention in the fan-shaped bottom cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the airflow-supplying intelligent mowing power machine of the present invention;

[0030] Figure 2 The airflow supply type intelligent mowing power machine of the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0031] Figure 3 The airflow supply type intelligent mowing power machine of the present invention Figure 1 A schematic diagram of the partially enlarged structure at point B in the middle;

[0032] Figure 4 This is a side view of the structure of the airflow supply type intelligent mowing power machine of the present invention;

[0033] Figure 5 The airflow supply type intelligent mowing power machine of the present invention Figure 4 A schematic diagram of the partially enlarged structure at point C in the middle;

[0034] Figure 6 The airflow supply type intelligent mowing power machine of the present invention Figure 4 The schematic diagram of the local enlarged structure at D in the middle;

[0035] Figure 7 The airflow supply type intelligent mowing power machine of the present invention Figure 4 Schematic diagram of the local enlarged structure at E in the middle;

[0036] Figure 8 This is a partial structural diagram of the airflow-supplying intelligent lawn mowing power machine of the present invention;

[0037] Figure 9 This is a schematic diagram of the second partial structure of the airflow supply type intelligent lawn mowing power machine of the present invention;

[0038] Figure 10 The airflow supply type intelligent mowing power machine of the present invention Figure 9Schematic diagram of the local structure;

[0039] In the figure: 1 mowing mechanism, 101 fan-shaped bottom cover, 102 fan-shaped grass discharge port, 103 fixing screw, 104 fan-shaped cover, 105 rotating drum, 106 mounting through hole, 107 round cover, 108 mounting bolt, 109 handle, 110 mowing blade, 111 rotating shaft, 112 motor base, 113 fixing bolt, 114 mowing motor, 115 temperature sensor, 2 handle disassembly and fixing mechanism, 201 groove, 202 sliding sleeve, 203 sliding column, 204 spoke rod, 20 5 fixed column, 206 fixed ear seat, 207 reinforcing rib plate, 208 compression spring, 209 limit nut, 210 clamping column, 3 mowing support moving mechanism, 301 fixed plate, 302 movable seat, 303 upper connecting rod, 304 adjustment block, 305 two-way threaded rod, 306 universal wheel, 307 chassis, 308 lower connecting rod, 4 blade protection mechanism, 401 disassembly bottom ring, 402 disassembly bolt, 403 protective barrier rod, 404 reinforced arc rod, 5 handheld control mechanism , 501 upright pole, 502 reinforcing plate, 503 arc seat, 504 hinged seat, 505 movable shaft, 506 handheld control lever, 507 fixed rod, 508 arc rod, 509 through slot, 510 latch, 511 fixing nut, 512 battery shell, 513 sliding door, 514 battery, 515 handheld handle, 516 controller, 517 auxiliary handle, 518 grip slot, 6 grass blowing and heat dissipation multifunctional mechanism, 601 support, 602 bottom fixing bolt, 603 arc frame , 604 arc slide rail, 605 arc slider, 606 fixing collar, 607 fastening bolt, 608 adjusting column, 609 push rod, 610 movable ear seat, 611 stud, 612 adjusting nut, 613 rectangular mounting frame, 614 fastening bolt, 615 ventilation shell, 616 blowing hood, 617 flexible air pipe, 618 air pump, 619 arc groove, 620 bent frame, 621 sliding pole, 622 downward pressure spring, 623 positioning triangle block, 624 control circle block. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] For example 1, please refer to Figures 1 to 10 This embodiment provides a technical solution: an airflow-supplying intelligent mowing power machine, comprising a mowing mechanism 1, a handle disassembly and fixing mechanism 2, a mowing support and moving mechanism 3, a blade protection mechanism 4, a handheld control mechanism 5, and a grass-blowing and heat-dissipating multifunctional mechanism 6;

[0042] The mowing mechanism 1 includes a fan-shaped bottom cover 101, a fixing screw 103, a fan-shaped cover plate 104, a rotary drum 105, a mounting through hole 106, a knife handle 109, a mowing blade 110 and a power assembly. The top of the fan-shaped bottom cover 101 is fixedly connected to the fan-shaped cover plate 104 by a fixing screw 103. The rotary drum 105 is rotatably mounted at the center of the circle where the fan-shaped bottom cover 101 is located. Six mounting through holes 106 are provided in a circular array on the side of the rotary drum 105. A knife handle 109 is respectively inserted in each mounting through hole 106, and a knife handle disassembly and fixing mechanism 2 is installed in the rotary drum 105. The knife handle disassembly and fixing mechanism 2 is connected to one end of the knife handle 109 located in the rotary drum 105. The outer end of the knife handle 109 is fixedly connected to the mowing blade 110. The top of the rotary drum 105 is connected to the power assembly.

[0043] The mowing mechanism 1 includes a fan-shaped grass discharge port 102. The fan-shaped grass discharge port 102 is opened at an equal angle at the bottom of the fan-shaped bottom cover 101. Some grass fragments retained in the fan-shaped bottom cover 101 can be discharged downward through the fan-shaped grass discharge port 102.

[0044] The power assembly includes a round cover 107, mounting bolts 108, a rotating shaft 111 and a lawn mowing motor 114. The top opening of the rotating drum 105 is fixedly connected to the round cover 107 by the mounting bolts 108. The top center of the round cover 107 and the bottom center of the rotating drum 105 are respectively fixedly connected to the rotating shaft 111. The rotating shaft 111 at the bottom of the rotating drum 105 is rotatably connected to the center of the fan-shaped bottom cover 101 through a bearing. The rotating shaft 111 at the top of the round cover 107 is rotatably connected to the fan-shaped cover plate 104 through a bearing. The top end of the rotating shaft 111 at the top of the round cover 107 is fixedly connected to the output shaft of the lawn mowing motor 114, and the lawn mowing motor 114 is fixedly mounted on the upper side of the fan-shaped cover plate 104. The circular cover 107 is fixed to the top opening of the rotating drum 105 by mounting bolts 108, forming a rotor. The two ends of the rotor are respectively rotatably mounted to the center of the circle in the protective cover through the rotating shaft 111. The mowing motor 114 drives the rotor to rotate, thereby driving the mowing blade 110 to rotate through the handle 109 to complete the mowing work.

[0045] The power assembly also includes a motor base 112 and fixing bolts 113. The upper side of the fan-shaped cover 104 is fixedly connected to the motor base 112 through the fixing bolts 113. The side of the motor base 112 is fixedly connected to the mowing motor 114. With the help of the motor base 112 and the fixing bolts 113, it is convenient to install or remove the mowing motor 114 on the fan-shaped cover 104.

[0046] The mowing mechanism 1 also includes a temperature sensor 115, and the mowing motor 114 is also equipped with a temperature sensor 115. The temperature sensor 115 can monitor the operation of the mowing motor 114. If the temperature is too high, the mowing motor 114 can be stopped, or the grass blowing and heat dissipation multifunctional mechanism 6 can be used to start the heat dissipation of the mowing motor 114.

[0047] The tool handle disassembly and fixing mechanism 2 includes a groove 201, a rebound assembly, a fixing post 205, and a fixing lug 206. Each tool handle 109 is fixedly connected to a fixing lug 206 at one end located within the rotating drum 105. A groove 201 is defined within the bottom of the rotating drum 105, and a rebound assembly is mounted within the groove 201. The rebound assembly is fixedly connected to a fixing post 205 corresponding to each fixing lug 206, and the fixing post 205 engages with a fixing hole on the corresponding fixing lug 206. The groove 201 is used to accommodate the rebound assembly, which pushes the fixing post 205 upward, causing the fixing post 205 to engage stably with the fixing lug 206, thereby firmly securing the tool handle 109 within the mounting hole 106 and preventing the centrifugal force of the rotor's high rotation from causing the tool handle 109 to disengage from the mounting hole 106.

[0048] In order to ensure a stable connection between the fixed ear seat 206 and the knife handle 109, the knife handle disassembly and fixing mechanism 2 also includes a reinforcing rib plate 207. The two sides of the fixed ear seat 206 are fixedly connected to the end of the knife handle 109 through the reinforcing rib plate 207, thereby improving the connection strength between the fixed ear seat 206 and the knife handle 109.

[0049] The rebound assembly includes a sleeve 202, a slide post 203, a spoke 204, a compression spring 208 and a limit nut 209. The slide post 203 is fixedly connected to the middle of the groove 201, and the slide post 202 is vertically slidably connected to the middle of the slide post 203. Six spokes 204 are fixedly connected to the annular array on the outer periphery of the slide sleeve 202. The top of each spoke 204 is fixedly connected to the bottom end of the fixed post 205 at one end away from the slide sleeve 202. The top of the slide post 203 is threadedly connected to the limit nut 209, and the compression spring 208 is sleeved on the position of the slide post 203 below the slide sleeve 202.

[0050] The compression spring 208 pushes the sliding sleeve 202 to move upward along the sliding post 203, so that the sliding sleeve 202, the spoke rod 204 and the fixed post 205 always have a tendency to move upward. The limit nut 209 prevents the elastic force of the compression spring 208 from causing the sliding sleeve 202 to separate from the top of the sliding post 203. The spoke rod 204 can drive the fixed post 205 to move upward as the sliding sleeve 202 moves upward, so that the fixed post 205 is plugged into the fixing hole on the fixed ear seat 206. When the handle 109 and the mowing blade 110 need to be disassembled and replaced, the sliding sleeve 202 is pressed downward along the sliding post 203. The blade 110 is then replaced with the new one. The blade 109 is pulled out of the mounting hole 106 by the fixed ear seat 206. Then, the new blade 109, the mowing blade 110 and the fixed ear seat 206 are put in. The sliding sleeve 202 and the spoke 204 are released. The compression spring 208 rebounds and extends, pushing the sliding sleeve 202, the spoke 204 and the fixed column 205 to move up again to engage the new fixed ear seat 206, thereby realizing the replacement of the blade 109 and the mowing blade 110.

[0051] The handle disassembly and fixing mechanism 2 includes a clamping post 210. The bottom of the circular cover 107 is fixedly connected to the position corresponding to each handle 109. The bottom end of the clamping post 210 is clamped into the corresponding clamping hole on the handle 109. When the circular cover 107 is fixed to the rotating drum 105, the clamping post 210 is also inserted into the clamping hole on the handle 109, further reinforcing the clamping of the handle 109 and making the handle 109 more firmly fixed in the mounting hole 106. The mounting bolt 108 on the circular cover 107 can also be arranged corresponding to the mounting hole 106, so that the bottom of the mounting bolt 108 can also be set to press against the upper side of the handle 109, further improving the fixing effect of the handle 109.

[0052] There are three mowing support moving mechanisms 3 and they are respectively installed at the bottom of the three corners of the fan-shaped bottom cover 101;

[0053] The blade protection mechanism 4 is mounted on the bottom front side of the fan-shaped bottom cover 101;

[0054] The handheld control mechanism 5 is installed in the middle of the upper side of the fan-shaped cover plate 104;

[0055] The grass blowing and heat dissipation multifunctional mechanism 6 is installed on the upper side of the fan-shaped cover plate 104.

[0056] When in use, the fan-shaped cover plate 104 is installed on the top of the fan-shaped bottom cover 101 through the fixing screws 103 to form a protective cover for protecting the mowing blade 110. The fan-shaped cover plate 104 can be disassembled with the help of the fixing screws 103, so as to facilitate the installation or removal of the rotary drum 105. The mounting through hole 106 on the rotary drum 105 is used to install the knife handle 109, and the knife handle 109 is used to fix the mowing blade 110, thereby improving a circular complete mowing piece into a mowing blade 110 one by one. After damage, it can be replaced individually, which reduces costs and waste of resources. The power component drives the rotary drum 105 to work and rotate in the protective cover, thereby driving the mowing blade 110 on the knife handle 109 to mow the grass, and the mowing support moves The driving mechanism 3 supports the bottom of the fan-shaped bottom cover 101, making it convenient to push the fan-shaped bottom cover 101 forward to change the mowing position. The blade protection mechanism 4 is installed on the front side of the fan-shaped bottom cover 101. As the protection cover moves forward, the grass is allowed to contact the mowing blade 110 and be cut, but it can prevent hard debris such as gravel from contacting the mowing blade 110, thereby protecting the mowing blade 110. The handheld control mechanism 5 is used for handheld control of the movement of the protection cover. The grass blowing and heat dissipation multifunctional mechanism 6 can blow air to dissipate heat to the power component, so that the power component can maintain normal operating temperature and continue to work. At the same time, it can blow away the grass cut by the mowing blade 110 to prevent the cut grass from being retained in the protection cover along with the mowing blade 110.

[0057] For example 2, please refer to Figures 1 to 10, this embodiment provides a technical solution: an airflow supply type intelligent mowing power machine, this embodiment is a further explanation of the structure of embodiment 1;

[0058] The mowing support and mobile mechanism 3 includes a mowing height adjustment assembly and universal wheels 306. Three mowing height adjustment assemblies are mounted at the bottom of the three corners of the sector-shaped bottom cover 101, and each mowing height adjustment assembly has a universal wheel 306 mounted at its bottom. The mowing height adjustment assembly can adjust the distance between the universal wheel 306 and the bottom of the sector-shaped bottom cover 101. A larger distance here results in taller grass remaining on the lawn after mowing, while a smaller distance here results in shorter grass remaining on the lawn after mowing. This can be adjusted as needed. The universal wheels 306 can be pushed by the handheld control mechanism 5, allowing the mower to move freely on the lawn. This eliminates the need for the user to carry the mower, reduces physical exertion, and is convenient to use.

[0059] The mowing height adjustment assembly includes a fixed plate 301, a movable seat 302, an upper connecting rod 303, an adjustment block 304, a bidirectional threaded rod 305, a chassis 307, and a lower connecting rod 308. The bottoms of the three corners of the fan-shaped bottom cover 101 are respectively fixedly connected with three fixed plates 301, and the bottom of each fixed plate 301 is respectively fixedly connected with a movable seat 302. The two sides of the bottom of the movable seat 302 are movably connected to the tops of the two upper connecting rods 303 through movable columns, and the bottoms of the two upper connecting rods 303 are respectively movably connected to the tops of the two adjustment blocks 304 through movable columns. The bottoms of the two adjustment blocks 304 are respectively movably connected to the tops of the two lower connecting rods 308 through movable columns. The bottoms of the two lower connecting rods 308 are respectively movably connected to the two sides of the top of another movable seat 302 through movable columns. The bottom of the movable seat 302 is fixedly connected to the top of the chassis 307. The bottom of the double-threaded rod 305 is provided with a universal wheel 306, and the two lower connecting rods 308 and the two upper connecting rods 303 form a movable diamond frame structure. The thread directions of the two ends of the double-threaded rod 305 are opposite, and the ends of the double-threaded rod 305 are provided with a hexagonal screw head. The two ends of the double-threaded rod 305 are respectively threadedly connected to the threaded holes on the sides of the two adjustment blocks 304. When the mowing height needs to be adjusted, the double-threaded rod 305 is twisted clockwise by the hexagonal screw head. The threaded action of the two ends of the double-threaded rod 305 and the two adjustment blocks 304 can make the two adjustment blocks 304 approach each other. At this time, the height of the diamond frame formed by the two lower connecting rods 308 and the two upper connecting rods 303 becomes larger. At this time, the fan-shaped bottom cover 101 rises relative to the universal wheel 306, and the double-threaded rod 305 is rotated counterclockwise, so that the two adjustment blocks 304 move away from each other, and the fan-shaped bottom cover 101 drops relative to the universal wheel 306.

[0060] For example three, please refer to Figures 1 to 10, this embodiment provides a technical solution: an airflow supply type intelligent mowing power machine, this embodiment is a further explanation of the structure of the second embodiment;

[0061] The blade protection mechanism 4 includes a disassembly bottom ring 401, a disassembly bolt 402 and a protective baffle 403. The bottom of the fan-shaped bottom cover 101 is fixedly connected to the disassembly bottom ring 401 by the disassembly bolt 402. The disassembly bottom ring 401 is arranged concentrically with the fan-shaped bottom cover 101, and a plurality of protective baffles 403 are fixedly connected at equal angles on the side of the disassembly bottom ring 401 away from the fan-shaped bottom cover 101. The end of the protective baffle 403 away from the disassembly bottom ring 401 is bent upward by ninety degrees.

[0062] The blade protection mechanism 4 also includes a reinforced arc rod 404. The bottom of all the protective bars 403 close to the disassembly bottom ring 401 is fixedly connected to the reinforced arc rod 404. The roots of each protective bar 403 can be connected together through the reinforced arc rod 404, which can improve the stability of the root structure of the protective bar 403.

[0063] The removal bolts 402 are used to install and fix the removal bottom ring 401, and the removal bottom ring 401 is used to install the protective bar 403. The protective bar 403 can comb the grass to be cut and block the grass roots at the same time, so that the mowing blade 110 can use the shear force to cut the grass more easily, and prevent the mowing blade 110 from carrying uncut grass into the protective cover. The upward bent part of the protective bar 403 can prevent hard debris such as stones from contacting the mowing blade 110 and damaging the mowing blade 110, so the mowing blade 110 can be well protected.

[0064] For example 4, please refer to Figures 1 to 10 , This embodiment provides a technical solution: an airflow supply type intelligent mowing power machine. This embodiment is a further explanation of the structure of the third embodiment;

[0065] The grass blowing and heat dissipation multifunctional mechanism 6 includes an arc frame 603, an arc slide rail 604, an arc slider 605, a ventilation shell 615, a blowing cover 616, a flexible air pipe 617, an air pump 618, a height adjustment component, a pitch angle adjustment component and a positioning locking component. The arc frame 603 is fixedly installed above the arc edge of the fan-shaped cover 104, and the middle lower side of the arc frame 603 is fixedly connected to the support 601. The support 601 is fixed to the upper side of the fan-shaped cover 104 by no less than two bottom fixing bolts 602. The arc frame 603 is fixedly supported by the support 601 and the bottom fixing bolts 602. The inner side of the frame 603 is integrally connected with an arc slide rail 604, and the arc slide rail 604 is slidably connected with an arc slider 605. The top of the arc slider 605 is connected to the upper side of the arc frame 603 through a positioning locking assembly. The inner side of the arc slider 605 is installed with a height adjustment assembly, and the top of the height adjustment assembly is fixedly connected with a ventilation shell 615 through a pitch angle adjustment assembly. One end of the ventilation shell 615 is fixedly connected with a blow hood 616, and the other end of the ventilation shell 615 is connected to the air outlet of the air pump 618 through a flexible air pipe 617. The air pump 618 is installed in the middle of the upper side of the fan-shaped cover 104.

[0066] The direction height adjustment component includes a fixing collar 606, a fastening bolt 607, and an adjusting column 608. The fixing collar 606 is fixedly connected to the inner side of the arc-shaped slider 605, and the adjusting column 608 is vertically inserted in the fixing collar 606. The fastening bolt 607 is threadedly connected to the side screw hole of the fixing collar 606. The fastening bolt 607 is pressed against the adjusting column 608. Loosening the fastening bolt 607 allows the adjusting column 608 to move up and down relative to the fixing collar 606. Then tightening the fastening bolt 607 allows the fastening bolt 607 to press against the adjusting column 608 again. At this time, the height of the blow hood 616 can be adjusted. Loosen the fastening bolt 607, rotate the adjusting column 608, and then re-tighten the fastening bolt 607. At this time, the direction of the blow hood 616 can be adjusted, thereby achieving comprehensive adjustment of the direction height of the blow hood 616.

[0067] The pitch angle adjustment assembly includes a top rod 609, a movable ear seat 610, a stud 611, an adjustment nut 612, a rectangular mounting frame 613, and a fastening bolt 614. The top of the adjustment column 608 is fixedly connected to the bottom of the top rod 609. A ventilation shell 615 is inserted into the inner side of the rectangular mounting frame 613. The top of the rectangular mounting frame 613 is threadedly connected to the fastening bolt 614. The bottom of the fastening bolt 614 is pressed against the ventilation shell 615. The bottom of the rectangular mounting frame 613 is fixedly connected to the movable ear seat 610. 610 is movably connected to the top of the top rod 609 through the stud 611, and the two ends of the stud 611 are respectively threaded with adjusting nuts 612. Loosen the adjusting nut 612 to allow the movable ear seat 610 and the top of the top rod 609 to move with the help of the stud 611, so as to change the pitch angle of the ventilation shell 615 and the blow hood 616. Then tighten the adjusting nut 612, and the adjusting nut 612 will press the movable ear seat 610 and the top rod 609 to fix the pitch state of the ventilation shell 615 and the blow hood 616.

[0068] The arc frame 603 is used to install the arc slide rail 604. The arc slider 605 can change the position of the blowing cover 616 and the ventilation shell 615 along the arc slide rail 604, so that the blowing cover 616 and the ventilation shell 615 can be changed on the left and right sides of the top of the protective cover, thereby changing the direction of the cooling of the mowing motor 114. More importantly, the direction of blowing grass can be changed according to the natural wind direction, so that the mowed grass can be blown in the direction of the wind, avoiding the mowed grass from entering the protective cover along with the mowing blade 110 and moving towards the grass. The height adjustment component can conveniently change the height and direction of the blow hood 616 and the ventilation shell 615. The pitch angle adjustment component can change the pitch angle of the blow hood 616. The blow hood 616 and the ventilation shell 615 can be freely adjusted as needed. The degree of freedom of use is high. The positioning locking component can lock the position of the arc slider 605 on the circular arc slide rail 604. The air pump 618 works to supply air to the blow hood 616 and the ventilation shell 615 through the flexible air pipe 617, and then blows it to the required position through the blow hood 616.

[0069] The positioning locking assembly includes an arc groove 619, a bent frame 620, a sliding rod 621, a downward pressure spring 622, a positioning triangle block 623 and a control circle block 624. An arc groove 619 is provided on the upper side of the arc frame 603, and friction grooves are provided in the arc groove 619. The top of the arc slider 605 is fixedly connected to the bent frame 620, and the sliding rod 621 is slidably connected in the vertical hole of the bent frame 620. The top of the sliding rod 621 is connected to the control circle block 624, and the bottom end of the sliding rod 621 is fixedly connected to the positioning triangle block 623. The bottom of the positioning triangle block 623 extends into the arc groove 619, and the sliding rod 621 is sleeved with a downward pressure spring 622 on the rod section between the bent frame 620 and the positioning triangle block 623.

[0070] The downward pressure spring 622 has a tendency to extend, allowing the sliding rod 621 to slide downward relative to the bent frame 620, so that the positioning triangle block 623 is pressed into the friction pattern in the arc groove 619. The friction between the positioning triangle block 623 and the friction pattern in the arc groove 619 allows the position of the arc slider 605 on the arc slide rail 604 to be locked. When you want to slide the arc slider 605 along the arc slide rail 604, pull the sliding rod 621 upward by controlling the circle 624, and the downward pressure spring 622 is compressed, so that the positioning triangle block 623 is disengaged from the friction pattern in the arc groove 619. At this time, you can move the arc slider 605, and then release the control circle 624, and the downward pressure spring 622 rebounds to lock the position of the arc slider 605 on the arc slide rail 604 again.

[0071] For example five, please refer to Figures 1 to 10 , This embodiment provides a technical solution: an airflow supply type intelligent mowing power machine, this embodiment is a further explanation of the structure of the fourth embodiment;

[0072] The handheld control mechanism 5 includes an angle adjustment assembly, a handheld control rod 506, and a grip assembly. The upper side of the fan-shaped cover 104 is connected to one end of the handheld control rod 506 via the angle adjustment assembly, and the grip assembly is mounted on the other end of the handheld control rod 506. The angle adjustment assembly allows the handheld control rod 506 to adjust the angle with the upper side of the fan-shaped cover 104 to facilitate use by people of different heights. The grip assembly facilitates the grip of the handheld control rod 506.

[0073] The angle adjustment assembly includes a vertical pole 501, a reinforcement plate 502, an arc seat 503, an articulated seat 504, a movable shaft 505, a fixed rod 507, an arc rod 508, a through slot 509, a latch 510, and a fixing nut 511. The upper side of the fan-shaped cover 104 is fixedly connected to two vertical poles 501. The two sides of each vertical pole 501 are fixedly connected to the upper side of the fan-shaped cover 104 through a reinforcement plate 502, thereby improving the connection strength between the fan-shaped cover 104 and the vertical pole 501. The tops of the two vertical poles 501 are fixedly connected to the two ends of the arc seat 503. The top center of the arc seat 503 is fixedly connected to the articulated seat 504. The articulated seat 504 is movably connected to the handheld control through a movable shaft 505 At one end of the rod 506, a through slot 509 is provided at one end of the handheld control lever 506 close to the hinge seat 504. The middle part of the arc seat 503 away from the mowing motor 114 is fixedly connected to the bottom end of the arc rod 508 through a fixing rod 507. The center of the circle where the arc rod 508 is located coincides with the center of the movable shaft 505. The arc rod 508 passes through the through slot 509, and a plurality of latch holes are provided at equal angles on the arc rod 508. A fixed plug hole is provided at a position corresponding to the middle of the through slot 509 on the handheld control lever 506. A latch 510 is inserted into the fixed plug hole, and the latch 510 passes through the corresponding latch hole on the arc rod 508. Both ends of the latch 510 are respectively threadedly connected with fixing nuts 511.

[0074] With the help of each vertical pole 501 and the arc-shaped seat 503, the hinge seat 504 is installed. The fixing nut 511 on the pin 510 is loosened and the pin 510 is removed. The hinge seat 504 can change the angle of the hand-held control rod 506 through the movable shaft 505. At this time, the hand-held control rod 506 can move relative to the arc rod 508. Then the pin 510 is reinserted and the fixing nut 511 is tightened. The hand-held control rod 506 with the adjusted angle can be re-fixed, so that the angle between the hand-held control rod 506 and the protective cover is fixed, which is convenient for different operators to adjust the inclination angle of the hand-held control rod 506 according to their needs.

[0075] The grip assembly includes a hand-held handle 515, an auxiliary handle 517, and a gripping groove 518. The hand-held control rod 506 is integrally connected to the hand-held handle 515 at one end away from the hinge seat 504. The gripping groove 518 is provided on the side of the hand-held handle 515. The hand-held control rod 506 is fixedly connected to the upper and lower sides of the hand-held control rod 506 at one end away from the hinge seat 504. The auxiliary handle 517 and the gripping groove 518 on the hand-held handle 515 allow the operator to hold the device with both hands, making it easier to operate the device.

[0076] The handheld control mechanism 5 also includes a battery shell 512, a sliding door 513, a battery 514, and a controller 516. The controller 516 is installed on the upper side of the handheld handle 515, and the controller 516 is used to conveniently control the operation of the lawn mowing motor 114 and the air pump 618. The battery shell 512 is provided in the middle of the handheld control rod 506. A rectangular opening is opened on one side of the battery shell 512, and a sliding door 513 is slidably installed in the rectangular opening. The battery 514 is installed in the battery shell 512, and the charging port of the battery 514 is set corresponding to the rectangular opening. The battery 514 is used to power the controller 516, the lawn mowing motor 114 and the air pump 618, and the power supply method adopts the existing technology.

[0077] It is worth noting that the controller 516 disclosed in the above embodiment adopts a PLC controller, and the controller 516 controls the operation of the mowing motor 114 and the air pump 618 using methods commonly used in the prior art, and the output end of the temperature sensor 115 is electrically connected to the input end of the controller 516, and the connection method between the temperature sensor 115 and the controller 516 adopts the prior art.

[0078] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0079] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An airflow-supplying intelligent lawn mowing power machine, characterized in that: include: The mowing mechanism (1) comprises a fan-shaped bottom cover (101), a fixing screw (103), a fan-shaped cover plate (104), a rotating drum (105), a mounting through hole (106), a knife handle (109), a mowing blade (110) and a power assembly, wherein the top of the fan-shaped bottom cover (101) is fixedly connected to the fan-shaped cover plate (104) via the fixing screw (103), and the rotating drum (105) is rotatably mounted at the center of the circle where the fan-shaped bottom cover (101) is located. Six mounting through holes (106) are provided in a circular array on the side of the rotary drum (105), a knife handle (109) is inserted into each mounting through hole (106), and a knife handle disassembly and fixing mechanism (2) is installed in the rotary drum (105), the knife handle disassembly and fixing mechanism (2) is connected to one end of the knife handle (109) located in the rotary drum (105), the outer end of the knife handle (109) is fixedly connected to a mowing blade (110), and the top of the rotary drum (105) is connected to a power assembly; The mowing support movable mechanism (3) is provided with three and is respectively mounted on the bottom of the three corners of the fan-shaped bottom cover (101); A blade protection mechanism (4) is mounted on the bottom front side of the fan-shaped bottom cover (101); A handheld control mechanism (5) is mounted on the middle portion of the upper side of the fan-shaped cover plate (104); A grass blowing and heat dissipation multifunctional mechanism (6) is mounted on the upper side of the fan-shaped cover plate (104); The grass blowing and heat dissipation multifunctional mechanism (6) comprises an arc frame (603), an arc slide rail (604), an arc slider (605), a ventilation shell (615), a blowing cover (616), a direction height adjustment component, a pitch angle adjustment component and a positioning locking component, the arc frame (603) is fixedly installed above the arc edge of the fan-shaped cover plate (104), the inner side of the arc frame (603) is integrally connected with the arc slide rail (604), the arc slider (605) is slidably connected to the arc slide rail (604), the top of the arc slider (605) is connected to the upper side of the arc frame (603) through the positioning locking component, the inner side of the arc slider (605) is installed with a direction height adjustment component, the top of the direction height adjustment component is fixedly connected to the ventilation shell (615) through the pitch angle adjustment component, and one end of the ventilation shell (615) is fixedly connected to the blowing cover (616); The positioning locking assembly comprises an arc groove (619), a bent frame (620), a sliding vertical rod (621), a downward pressure spring (622), a positioning triangular block (623) and a control circular block (624). The arc groove (619) is provided on the upper side of the arc frame (603), and friction lines are provided in the arc groove (619). The top of the arc-shaped slider (605) is fixedly connected to the bent frame (620), and the sliding vertical rod (621) is slidably connected in the vertical hole of the bent frame (620). The top of the sliding vertical rod (621) is connected to the control circular block (624). The bottom end of the sliding vertical rod (621) is fixedly connected to the positioning triangular block (623), and the bottom of the positioning triangular block (623) extends into the arc groove (619). The sliding vertical rod (621) is sleeved with a downward pressure spring (622) on the rod section between the bent frame (620) and the positioning triangular block (623).

2. The airflow-supply-type intelligent lawn mowing power machine according to claim 1, characterized in that: The power assembly comprises a round cover (107), a mounting bolt (108), a rotating shaft (111) and a mowing motor (114). The top opening of the rotating drum (105) is fixedly connected to the round cover (107) via the mounting bolt (108). The top center of the round cover (107) and the bottom center of the rotating drum (105) are respectively fixedly connected to the rotating shaft (111). The rotating shaft (111) at the bottom of the rotating drum (105) is rotatably connected to the center of the fan-shaped bottom cover (101) via a bearing. The rotating shaft (111) at the top of the round cover (107) is rotatably connected to the fan-shaped cover plate (104) via a bearing. The top end of the rotating shaft (111) at the top of the round cover (107) is fixedly connected to the output shaft of the mowing motor (114). The mowing motor (114) is fixedly mounted on the upper side of the fan-shaped cover plate (104).

3. The airflow-supply-type intelligent lawn mowing power machine according to claim 1, characterized in that: The knife handle disassembly and fixing mechanism (2) comprises a groove (201), a rebound component, a fixed column (205) and a fixed ear seat (206), one end of each knife handle (109) located in the rotating cylinder (105) is fixedly connected to the fixed ear seat (206), the bottom of the rotating cylinder (105) is provided with a groove (201), the rebound component is installed in the groove (201), and a fixed column (205) corresponding to each fixed ear seat (206) is fixedly connected to the rebound component, and the fixed column (205) is plugged into the fixing hole on the corresponding fixed ear seat (206).

4. The airflow-supply-type intelligent lawn mowing power machine according to claim 3, characterized in that: The rebound assembly comprises a sliding sleeve (202), a sliding column (203), a spoke (204), a compression spring (208) and a limiting nut (209); the middle of the groove (201) is fixedly connected to the sliding column (203); the middle of the sliding column (203) is vertically slidably connected to the sliding sleeve (202); six spokes (204) are fixedly connected to the annular array on the outer peripheral side of the sliding sleeve (202); the top of one end of each spoke (204) away from the sliding sleeve (202) is fixedly connected to the bottom end of the fixed column (205); the top end of the sliding column (203) is threadedly connected to the limiting nut (209), and the compression spring (208) is sleeved on the position of the sliding column (203) below the sliding sleeve (202).

5. The airflow-supply-type intelligent lawn mowing power machine according to claim 3, characterized in that: The knife handle disassembly and fixing mechanism (2) includes a clamping column (210), and the bottom of the round cover (107) is fixedly connected to the position of each knife handle (109) with a clamping column (210), and the bottom end of the clamping column (210) is clamped with a clamping hole on the corresponding knife handle (109).

6. The airflow-supply-type intelligent lawn mowing power machine according to claim 1, characterized in that: The mowing support moving mechanism (3) comprises a mowing height adjustment component and a universal wheel (306). Three mowing height adjustment components are respectively installed at the bottom of the three corners of the fan-shaped bottom cover (101), and a universal wheel (306) is respectively installed at the bottom of each mowing height adjustment component.

7. The airflow-supply-type intelligent lawn mowing power machine according to claim 1, characterized in that: The blade protection mechanism (4) comprises a disassembly bottom ring (401), a disassembly bolt (402) and a protective blocking rod (403); the bottom of the fan-shaped bottom cover (101) is fixedly connected to the disassembly bottom ring (401) via the disassembly bolt (402); the disassembly bottom ring (401) and the fan-shaped bottom cover (101) are arranged concentrically; and a plurality of protective blocking rods (403) are fixedly connected at equal angles on a side of the disassembly bottom ring (401) away from the fan-shaped bottom cover (101); and one end of the protective blocking rod (403) away from the disassembly bottom ring (401) is bent upward at ninety degrees.

8. The airflow-supply-type intelligent lawn mowing power machine according to claim 1, characterized in that: The grass blowing and heat dissipation multifunctional mechanism (6) further comprises a flexible air pipe (617) and an air pump (618), the other end of the ventilation shell (615) is connected to the air outlet of the air pump (618) via the flexible air pipe (617), and the air pump (618) is installed in the middle of the upper side of the fan-shaped cover plate (104).

9. The airflow-supply-type intelligent lawn mowing power machine according to claim 1, characterized in that: The handheld control mechanism (5) comprises an angle adjustment component, a handheld control rod (506) and a gripping component. The upper side of the fan-shaped cover plate (104) is connected to one end of the handheld control rod (506) via the angle adjustment component, and the other end of the handheld control rod (506) is installed with the gripping component.

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