Lithium battery mower capable of autonomous obstacle avoidance

Abstract

The application relates to the technical field of grass cutting equipment, in particular to a lithium battery grass cutter with a self-obstacle-surmounting structure, which comprises a machine body, track driving assemblies are arranged at the two ends of the machine body, a machine seat is arranged at the upper end of the machine body, a plurality of guide columns are arranged at the upper end of the machine seat, a lifting plate is slidably connected to the circumferential surface of the guide columns, an electric push rod is arranged in the machine body, the output end of the electric push rod is fixedly connected with the lifting plate, a cutting assembly is arranged at the upper end of the lifting plate, a first rotating seat is arranged at the upper end of the lifting plate, a pair of front swing arms are rotatably connected to the circumference of the first rotating seat, first connecting columns are arranged on the circumferential surfaces of the front swing arms, first obstacle-avoiding discs are arranged on the circumferential surfaces of the first connecting columns, first rotating shafts are rotatably connected in the first connecting columns, and front blades are arranged on the circumferences of the first rotating shafts. Through the action of the cutting assembly, the cutting assembly can autonomously surmount obstacles when the equipment encounters obstacles, the cutting assembly is protected, and the service life of the equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lawn mowers, in particular to a lithium battery lawn mower capable of autonomously crossing obstacles. BACKGROUND

[0002] The lawn mower is also called a weeding machine, a grass cutting machine, a lawn trimming machine, etc. The lawn mower is a mechanical tool for trimming lawns, vegetation, etc. It is composed of a cutter head, an engine, a walking wheel, a walking mechanism, a blade, a handrail, and a control part. The cutter head is mounted on the walking wheel, and the cutter head is mounted with the engine. The output shaft of the engine is mounted with the blade. The blade greatly improves the speed by using the high-speed rotation of the engine, saving the working time of the weeding workers and reducing a large amount of human resources.

[0003] The existing technology has the following disadvantages: when the lawn mower is working, if an obstacle is encountered, the lawn mower collides with the obstacle, which can easily cause damage to the lawn mower. Some lawn mowers use a camera to check the mowing route to avoid some trees. If the height of the grass is high, the camera cannot check the obstacle in the grass during mowing, and the obstacle cannot be avoided in time. Therefore, we propose a lithium battery lawn mower capable of autonomously crossing obstacles. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a lithium battery lawn mower capable of autonomously crossing obstacles to solve the problems existing in the above background art.

[0005] The present application provides the following technical scheme: a lithium battery lawn mower capable of autonomously crossing obstacles, comprising a machine body, a track driving assembly is arranged at both ends of the machine body, a machine seat is installed on the upper end of the machine body, a machine shell is installed on the upper end of the machine seat, a plurality of guide columns are installed on the upper end of the machine seat, a lifting plate is slidably connected to the circumferential surface of the guide column, an electric push rod is installed in the machine body, the output end of the electric push rod is fixedly connected with the lifting plate, a cutting assembly is installed on the upper end of the lifting plate, the cutting assembly comprises a first rotating seat, a front swing arm, a first obstacle avoidance disc and a front blade, the first rotating seat is installed on the upper end of the lifting plate, a pair of front swing arms are rotatably connected to the circumference of the first rotating seat, a first connecting column is installed in the front end hole of each front swing arm, the first obstacle avoidance disc is installed on the circumferential surface of the first connecting column, a first rotating shaft is rotatably connected in the first connecting column, and the front blade is installed on the circumference of the first rotating shaft.

[0006] A plurality of obstacle avoidance reset mechanisms connected with the front swing arm are arranged on the upper end of the machine seat.

[0007] Preferably, the upper end of the lifting plate is provided with a second rotating seat, the circumferential surface of the second rotating seat is rotatably connected with a rear swing arm, the rear end hole of the rear swing arm is provided with a second connecting column, the circumferential surface of the second connecting column is provided with a second obstacle avoidance disc, the second connecting column is rotatably connected with a second rotating shaft, and the circumferential surface of the second rotating shaft is provided with a rear blade.

[0008] Preferably, the upper end of the lifting plate is provided with a rotating motor, the output end of the rotating motor is provided with a driving shaft, the first rotating seat and the second rotating seat are rotatably connected with a driven shaft, the driving shaft and the driven shaft are connected through a first belt wheel set, and the driven shaft is connected with the first rotating shaft and the second rotating shaft through a second belt wheel set.

[0009] Preferably, the upper end of the base is further provided with an obstacle avoidance reset mechanism connected with the rear swing arm, the obstacle avoidance reset mechanism comprises a first connecting block, a second connecting block and a reset tension spring, a plurality of first connecting blocks are arranged on the upper end of the base, the second connecting blocks are arranged on the lower ends of the front swing arm and the rear swing arm respectively, and the reset tension springs are arranged between the first connecting blocks and the second connecting blocks.

[0010] Preferably, the upper end of the lifting plate is provided with a swing mechanism, the swing mechanism comprises a guide frame, a mounting shell and a rack, the guide frame is arranged on the upper end of the lifting plate, a pair of mounting shells are slidably connected to the circumferential surface of the guide frame, the rack is slidably connected in the mounting shell, a reset tension spring is arranged between the rack and the mounting shell, a connecting rod is rotatably connected in the mounting shell, a limiting block is arranged on the circumferential surface of the connecting rod, and a tooth ring is arranged on the circumferential surface of the front swing arm.

[0011] Preferably, the upper end of the lifting plate is provided with a rotating frame, the rotating frame is rotatably connected with a linkage shaft, a first bevel gear is arranged on the circumferential surface of the driving shaft, a second bevel gear arranged on the circumferential surface of the linkage shaft is engaged with the first bevel gear, a pair of reciprocating lead screws are rotatably connected in the guide frame, the reciprocating lead screws are threadedly connected with the mounting shells, the reciprocating lead screws are connected through a chain wheel set, and the reciprocating lead screws are rotatably connected with the linkage shaft.

[0012] Preferably, the lower end of the base is provided with a fixing seat, and the front end of the fixing seat is provided with a camera.

[0013] Preferably, the machine body is provided with a mounting groove, and the mounting groove is provided with a lithium battery.

[0014] The technical effects and advantages of the present application are as follows:

[0015] 1. The application is characterized in that the front knife is rotated at high speed, the front knife and the rear knife cut the weeds on the moving path during the forward movement, when the first obstacle avoidance disc or the second obstacle avoidance disc contacts the obstacle, a point on the circumferential surface of the first obstacle avoidance disc or the second obstacle avoidance disc is subjected to resistance, thereby causing the front swing arm and the rear swing arm to rotate, and the front knife or the rear knife autonomously bypasses the obstacle, and then through the action of the reset tension spring, after bypassing the obstacle, the reset tension spring can drive the front swing arm and the rear swing arm to rotate back to the original position, and continue to harvest the weeds in front, the cutting assembly can autonomously bypass the obstacle when the device encounters the obstacle, which plays a protective role for the cutting assembly and improves the service life of the device.

[0016] 2. The application is characterized in that the control connecting rod is rotated to push the limit block forward, at this time the rack is engaged with the tooth ring installed on the circumferential surface of the front swing arm, and then during the cutting of weeds, the control installation shell is controlled to move left and right reciprocally, the rack can drive the front swing arm to reciprocate through the action of the tooth ring, which can increase the cutting range of weeds on both sides of the front knife, thereby improving the efficiency of cutting weeds, when facing an environment with high weeds, it is difficult to observe the ground conditions, at this time the control connecting rod is controlled to reset, so that the limit block releases the limitation of the rack, at this time the rack is retracted into the installation shell through the action of the retraction spring, so that the rack is disengaged from the tooth ring, at this time when the device moves forward, if the first obstacle avoidance disc contacts some obstacles that are difficult to move, the front swing arm can be rotated to realize the effect of autonomously bypassing the obstacle, which can meet the use requirements in different environments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram in the application;

[0018] Figure 2 It is the structure schematic diagram in the application from the top;

[0019] Figure 3 It is the structure schematic diagram when the shell is disassembled in the application;

[0020] Figure 4 It is the structure schematic diagram from the left view in the application;

[0021] Figure 5 It is the structure schematic diagram of A part in the application; Figure 4

[0022] Figure 6 It is the structure schematic diagram of the obstacle avoidance reset mechanism in the application;

[0023] Figure 7 It is the structure schematic diagram of the cutting assembly in the application;

[0024] Figure 8 ​It is a structural schematic diagram of the front swing arm expanding to both sides in the application;

[0025] Figure 9 It is a structural schematic diagram of the swing mechanism in the application;

[0026] Figure 10 It is a structural schematic diagram of the swing mechanism in the application.

[0027] The figure marks are: 1, machine body; 101, machine base; 102, machine shell; 103, guide column; 104, lifting plate; 105, electric push rod; 2, track driving assembly; 3, cutting assembly; 301, first rotating seat; 302, front swing arm; 303, first connecting column; 304, first obstacle avoidance disc; 305, first rotating shaft; 306, front blade; 307, second rotating seat; 308, rear swing arm; 309, second connecting column; 3010, second obstacle avoidance disc; 3011, second rotating shaft; 3012, rear blade; 4, rotary motor; 401, driving shaft; 402, driven shaft; 403, first pulley set; 404, second pulley set; 5, obstacle avoidance reset mechanism; 501, first connecting block; 502, second connecting block; 503, reset tension spring; 6, swing mechanism; 601, guide frame; 602, mounting shell; 603, rack; 604, retraction tension spring; 605, connecting rod; 606, limit block; 607, tooth ring; 608, rotating frame; 609, linkage shaft; 6010, first bevel gear; 6011, second bevel gear; 6012, reciprocating screw rod; 6013, sprocket set; 6014, gear; 7, fixed seat; 701, camera; 8, mounting groove; 801, lithium battery. DETAILED DESCRIPTION

[0028] The technical solutions in the application will be described clearly and completely below in combination with the drawings in the application, and in addition, the forms of each structure described in the following embodiments are only examples, and the self-obstacle-crossing lithium electric mower involved in the application is not limited to each structure described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the application.

[0029] As Figures 1-7As shown, in one embodiment, a lithium battery self-obstacle-crossing lawn mower is proposed, comprising a body 1, a track driving assembly 2 arranged at both ends of the body 1, a seat 101 mounted on the upper end of the body 1, a shell 102 mounted on the upper end of the seat 101, a plurality of guide columns 103 mounted on the upper end of the seat 101, a lifting plate 104 slidingly connected to the circumferential surface of the guide column 103, an electric push rod 105 mounted in the body 1, the output end of the electric push rod 105 being fixedly connected with the lifting plate 104, a cutting assembly 3 mounted on the upper end of the lifting plate 104, the cutting assembly 3 comprising a first rotating seat 301, a front swing arm 302, a first obstacle avoidance disc 304 and a front blade 306, the first rotating seat 301 being mounted on the upper end of the lifting plate 104, a pair of front swing arms 302 being rotatably connected to the circumference of the first rotating seat 301, a first connecting column 303 being mounted in the front end hole of each of the front swing arms 302, the first obstacle avoidance disc 304 being mounted on the circumferential surface of the first connecting column 303, and a first rotating shaft 305 being rotatably connected in the first connecting column 303, the front blade 306 being mounted on the circumference of the first rotating shaft 305.

[0030] A plurality of obstacle avoidance reset mechanisms 5 connected with the front swing arm 302 are arranged on the upper end of the seat 101.

[0031] In actual application, the track driving assembly 2 is controlled to operate, so that the equipment can be controlled to run, when the equipment moves, the first rotating shaft 305 is controlled to rotate, so that the front blade 306 can be driven to rotate at high speed to cut the weeds in front, when an obstacle is encountered, the first obstacle avoidance disc 304 will first contact the obstacle, since the equipment continuously moves forward, the obstacle will generate resistance to the first obstacle avoidance disc 304, so that the front swing arm 302 rotates on the circumferential surface of the first rotating seat 301, then the first obstacle avoidance disc 304 and the front blade 306 bypass the obstacle, so that the front blade 306 is prevented from contacting the obstacle, in the process of cutting the weeds, the cutting assembly 3 can autonomously cross the obstacle, so that the cutting assembly 3 is protected, and the service life of the equipment is improved.

[0032] As shown in FIGS. Figure 2 and 7 As shown, in one embodiment, a second rotating seat 307 is mounted on the upper end of the lifting plate 104, a rear swing arm 308 is rotatably connected to the circumferential surface of the second rotating seat 307, a second connecting column 309 is mounted in the rear end hole of the rear swing arm 308, a second obstacle avoidance disc 3010 is mounted on the circumferential surface of the second connecting column 309, and a second rotating shaft 3011 is rotatably connected in the second connecting column 309, a rear blade 3012 being mounted on the circumferential surface of the second rotating shaft 3011.

[0033] In actual application, the embodiment of the present application can cut weeds on both sides of the equipment through the front swing arm 302, the first barrier disc 304 and the front blade 306, and weeds in the middle part can be cut through the rear blade 3012, when the second barrier disc 3010 on the rear side contacts with an obstacle, the rear swing arm 308 rotates, so that the second barrier disc 3010 and the rear blade 3012 bypass the obstacle, in the process of cutting weeds, the first barrier disc 304 and the second barrier disc 3010 can avoid the obstacle directly contacting with the front blade 306 and the rear blade 3012, and when the obstacle contacts with the first barrier disc 304 and the second barrier disc 3010, since the first barrier disc 304 and the second barrier disc 3010 are circular, and the front swing arm 302 and the rear swing arm 308 can rotate, when the equipment moves forward, the front swing arm 302 or the swing arm rotates, which can protect the front cutter and the rear cutter, and make the front blade 306 and the rear blade 3012 bypass the obstacle automatically, without affecting the efficiency of cutting weeds.

[0034] As shown in Figure 6 , in one embodiment, the rotating motor 4 is installed on the upper end of the lifting plate 104, the driving shaft 401 is installed on the output end of the rotating motor 4, the driven shaft 402 is rotatably connected in the first rotating seat 301 and the second rotating seat 307, the driving shaft 401 is connected with the driven shaft 402 through the first pulley set 403, and the driven shaft 402 is connected with the first rotating shaft 305 and the second rotating shaft 3011 through the second pulley set 404.

[0035] In actual application, the rotating motor 4 is controlled to rotate, so that the driving shaft 401 rotates, the driving shaft 401 drives the driven shaft 402 to rotate through the first pulley set 403, and the driven shaft 402 drives the first rotating shaft 305 and the second rotating shaft 3011 to rotate through the second pulley set 404, so that the front blade 306 and the rear blade 3012 rotate at the same time.

[0036] As shown in Figure 3 , 6 and 7, in one embodiment, the machine base 101 is further provided with the barrier resetting mechanism 5 connected with the rear swing arm 308, the barrier resetting mechanism 5 comprises the first connecting block 501, the second connecting block 502 and the reset tension spring 503, the first connecting block 501 is installed on the upper end of the machine base 101, the second connecting block 502 is installed on the lower end of the front swing arm 302 and the rear swing arm 308, and the reset tension spring 503 is installed between the first connecting block 501 and the second connecting block 502.

[0037] In practical application, the present invention utilizes the return spring 503 to pull the first connecting block 501 and the second connecting block 502, aligning the first connecting block 501, the second connecting block 502, and either the first rotating shaft 305 or the second rotating shaft 3011. This effectively restricts the position of the front swing arm 302 and the rear swing arm 308 under normal conditions, keeping them in a fixed position. As the front blade 306 and the rear blade 3012 move forward, they cut weeds along their path. When encountering obstacles, the first obstacle avoidance mechanism... When the first obstacle avoidance plate 304 or the second obstacle avoidance plate 3010 comes into contact with an obstacle, a point on the circumference of the first obstacle avoidance plate 304 or the second obstacle avoidance plate 3010 will be resisted, which will cause the front swing arm 302 and the rear swing arm 308 to rotate. The front blade 306 or the rear blade 3012 will autonomously bypass the obstacle. Then, through the action of the reset spring 503, after the first obstacle avoidance plate 304 and the second obstacle avoidance plate 3010 have bypassed the obstacle, they can drive the front swing arm 302 and the rear swing arm 308 to rotate and reset their positions, maintaining their original positions to continue harvesting the weeds on the front side.

[0038] like Figure 5 , 6 As shown in Figures 8, 9, and 10, in one embodiment, a swing mechanism 6 is installed on the upper end of the lifting plate 104. The swing mechanism 6 includes a guide frame 601, a mounting shell 602, and a rack 603. The guide frame 601 is installed on the upper end of the lifting plate 104. A pair of mounting shells 602 are slidably connected to the circumferential surface of the guide frame 601. The rack 603 is slidably connected inside the mounting shell 602. A retraction spring 604 is installed between the rack 603 and the mounting shell 602. A connecting rod 605 is rotatably connected inside the mounting shell 602. A limit block 606 is installed on the circumferential surface of the connecting rod 605. A toothed ring 607 is installed on the circumferential surface of the front swing arm 302.

[0039] When the lawn weed height is low and there is no position-fixed obstacle, the connecting rod 605 can be controlled to rotate, the connecting rod 605 drives the limiting block 606 to rotate, the limiting block 606 pushes the rack 603 to move forward in the installation shell 602, at this time, the rack 603 is engaged with the tooth ring 607 installed on the circumferential surface of the front swing arm 302, then when the weed is cut, the installation shell 602 is controlled to move back and forth, the rack 603 is driven to move back and forth, the rack 603 drives the front swing arm 302 to swing back and forth through the action of the tooth ring 607, the cutting range of the front blade 306 on both sides is increased, and the cutting efficiency of the weed is improved. When the weed is high, it is difficult to observe the ground condition, at this time, the connecting rod 605 can be controlled to reset, so that the limiting block 606 releases the limiting of the rack 603, at this time, the rack 603 is retracted into the installation shell 602 through the action of the retracting spring 604, so that the rack 603 is disengaged from the tooth ring 607, at this time, when the device moves forward, if the first obstacle-avoiding disc 304 contacts some obstacles that are difficult to move, the front swing arm 302 can be rotated, and the effect of autonomously crossing the obstacle is realized.

[0040] In one case of the embodiment of the application, when the front swing arm 302 swings back and forth, if there are some movable small obstacles on the lawn, the front swing arm 302 can drive the first obstacle-avoiding disc 304 to swing, when the first obstacle-avoiding disc 304 contacts the obstacle, the obstacle can be pushed to both sides, and the device moving forward is not interfered.

[0041] As shown in FIGS. Figure 6 , In one embodiment, as shown in FIGS. 9 and 10, the upper end of the lifting plate 104 is provided with a rotating frame 608, the rotating frame 608 is rotatably connected with a linkage shaft 609, the circumferential surface of the driving shaft 401 is provided with a first bevel gear 6010, a second bevel gear 6011 installed on the circumferential surface of the linkage shaft 609 is engaged with the first bevel gear 6010, a pair of reciprocating lead screws 6012 are rotatably connected in the guide frame 601, the reciprocating lead screws 6012 are threadedly connected between the installation shell 602, the reciprocating lead screws 6012 are connected through a chain wheel set 6013 between the linkage shaft 609, and the reciprocating lead screws 6012 are all provided with gears 6014 engaged with each other on the circumferential surface.

[0042] The embodiment of the present application is in actual application, when the rotating motor 4 rotates, the rotating motor 4 will drive the first bevel gear 6010 to rotate through the driving shaft 401, the first bevel gear 6010 drives the linkage shaft 609 to rotate through the second bevel gear 6011, the linkage shaft 609 drives the reciprocating screw rod 6012 to rotate through the action of the chain wheel set 6013, at this time, through the action of the gear 6014, the two reciprocating screw rods 6012 rotate in opposite directions, and then a pair of mounting shells 602 and the rack 603 can be driven to move left and right reciprocatingly, when the rack 603 is engaged with the tooth ring 607, the front swing arm 302 can be driven to swing, the cutting range is improved, when the rack 603 is separated from the tooth ring 607, the first barrier disc 304 can autonomously pass over the obstacle when the first barrier disc 304 is in contact with the obstacle, and the use requirement in different environments can be met.

[0043] As shown in the figure, Figure 4 In one embodiment, the fixed seat 7 is installed at the lower end of the machine base 101, and the camera 701 is installed at the front end of the fixed seat 7.

[0044] In actual application, the embodiment of the present application monitors the equipment moving path through the camera 701, and when a tree is encountered, the equipment moving path can be controlled according to the monitoring picture, so that the equipment passes through the two sides of the tree, when passing through the tree, the first barrier disc 304 is in contact with the periphery of the tree, and then the first barrier disc 304 and the front blade 306 are rotated inward, so that the first barrier disc 304 and the front blade 306 pass over the tree, and then the first barrier disc 304 and the front blade 306 are reset through the action of the reset tension spring 503, so that the cutting of weeds is not affected while the tree is avoided.

[0045] In one case of the embodiment of the present application, when the front swing arm 302 is rotated for cutting weeds at a low height, the camera 701 can monitor the ground environment, and some position-fixed obstacles can be bypassed while the cutting efficiency is met.

[0046] As shown in the figure, Figure 4 In one embodiment, the mounting groove 8 is formed in the machine body 1, and the lithium battery 801 is installed in the mounting groove 8.

[0047] In actual application, the embodiment of the present application stores power through the lithium battery 801, and can supply power when the equipment is running, so that the energy-saving and environmental protection requirement is met.

[0048] Finally, the following points should be noted: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0049] Secondly: the embodiment of the present application discloses only the structure involved in the embodiment of the present application, other structures can refer to the general design, and in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0050] Finally: the above only for the preferred embodiment of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lithium electric lawnmower autonomously surmountable obstacles, comprising a body (1), characterized in that: The body (1) is provided with track drive assemblies (2) at both ends, a machine base (101) is installed on the upper end of the body (1), a machine shell (102) is installed on the upper end of the machine base (101), a plurality of guide columns (103) are installed on the upper end of the machine base (101), a lifting plate (104) is slidably connected to the circumferential surface of the guide column (103), an electric push rod (105) is installed in the body (1), the output end of the electric push rod (105) is fixedly connected with the lifting plate (104), a cutting assembly (3) is installed on the upper end of the lifting plate (104), the cutting assembly (3) comprises a first rotating seat (301), a front swing arm (302), a first obstacle avoidance disc (304) and a front blade (306), the first rotating seat (301) is installed on the upper end of the lifting plate (104), a pair of front swing arms (302) are rotatably connected to the circumference of the first rotating seat (301), a first connecting column (303) is installed in the front end hole of each front swing arm (302), the first obstacle avoidance disc (304) is installed on the circumferential surface of the first connecting column (303), a first rotating shaft (305) is rotatably connected in the first connecting column (303), and the front blade (306) is installed on the circumference of the first rotating shaft (305); a plurality of obstacle avoidance reset mechanisms (5) connected with the front swing arms (302) are arranged on the upper end of the machine base (101); A swing mechanism (6) is installed on the upper end of the lifting plate (104), the swing mechanism (6) comprises a guide frame (601), a mounting shell (602) and a rack (603), the guide frame (601) is installed on the upper end of the lifting plate (104), a pair of mounting shells (602) are slidably connected to the circumferential surface of the guide frame (601), the rack (603) is slidably connected in the mounting shell (602), a retraction tension spring (604) is installed between the rack (603) and the mounting shell (602), a connecting rod (605) is rotatably connected in the mounting shell (602), a limiting block (606) is installed on the circumferential surface of the connecting rod (605), and a tooth ring (607) is installed on the circumferential surface of the front swing arm (302); By controlling the rotation of the connecting rod (605), the limiting block (606) can push the rack (603) forward, so that the rack (603) is engaged with the tooth ring (607), then when cutting weeds, the mounting shell (602) is controlled to move back and forth, the rack (603) can drive the front swing arm (302) to swing back and forth through the tooth ring (607); the connecting rod (605) is controlled to reset, so that the limiting block (606) releases the limiting of the rack (603), the rack (603) is retracted into the mounting shell (602) through the retraction tension spring (604), so that the rack (603) is disengaged from the tooth ring (607).

2. The lithium electric mower capable of autonomously overcoming obstacles according to claim 1, characterized in that: The upper end of the lifting plate (104) is provided with a second rotating seat (307), the circumferential surface of the second rotating seat (307) is rotatably connected with a rear swing arm (308), the rear end hole of the rear swing arm (308) is provided with a second connecting column (309), the circumferential surface of the second connecting column (309) is provided with a second obstacle avoidance disc (3010), the second connecting column (309) is rotatably connected with a second rotating shaft (3011), and the circumferential surface of the second rotating shaft (3011) is provided with a rear blade (3012).

3. The lithium electric mower capable of autonomously overcoming obstacles according to claim 2, characterized in that: The upper end of the lifting plate (104) is provided with a rotary motor (4), the output end of the rotary motor (4) is provided with a driving shaft (401), the first rotating seat (301) and the second rotating seat (307) are rotatably connected with a driven shaft (402), the driving shaft (401) and the driven shaft (402) are connected through a first pulley set (403), and the driven shaft (402) is connected with the first rotating shaft (305) and the second rotating shaft (3011) through a second pulley set (404).

4. The lithium electric mower capable of autonomously overcoming obstacles according to claim 3, characterized in that: The upper end of the machine base (101) is also provided with an obstacle avoidance reset mechanism (5) connected with the rear swing arm (308), the obstacle avoidance reset mechanism (5) comprises a first connecting block (501), a second connecting block (502) and a reset tension spring (503), a plurality of first connecting blocks (501) are installed on the upper end of the machine base (101), the lower ends of the front swing arm (302) and the rear swing arm (308) are respectively provided with a second connecting block (502), and the reset tension spring (503) is installed between the first connecting block (501) and the second connecting block (502).

5. The lithium electric lawnmower autonomously capable of overcoming obstacles according to claim 4, characterized in that: The upper end of the lifting plate (104) is provided with a rotating frame (608), the rotating frame (608) is rotatably connected with a linkage shaft (609), the circumferential surface of the driving shaft (401) is provided with a first bevel gear (6010), the circumferential surface of the linkage shaft (609) is provided with a second bevel gear (6011) engaged with the first bevel gear (6010), the guide frame (601) is rotatably connected with a pair of reciprocating lead screws (6012), the reciprocating lead screws (6012) are threadedly connected between the mounting shell (602), the reciprocating lead screws (6012) are connected through a sprocket set (6013) between the linkage shaft (609), and the circumferential surfaces of the reciprocating lead screws (6012) are provided with gears (6014) engaged with each other.

6. The lithium electric lawnmower capable of autonomously overcoming obstacles according to claim 1, characterized in that: The lower end of the machine base (101) is provided with a fixing seat (7), and the front end of the fixing seat (7) is provided with a camera (701).

7. The lithium electric lawnmower capable of autonomously overcoming obstacles according to claim 1, characterized in that: The machine body (1) is provided with a mounting groove (8), and the mounting groove (8) is provided with a lithium battery (801).

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