Remote control crawler mower

Abstract

The invention belongs to the technical field of lawn mower production, and provides a remote control crawler lawn mower which comprises a main body, crawler walking mechanisms used for moving are arranged on the two sides of the main body, a supporting frame is fixedly connected to the bottom of the main body, and a cutting mechanism used for mowing is connected to the supporting frame. A positioning mechanism capable of being fixedly connected with the ground is arranged at the bottom of the main body, and the cutting mechanism can drive the positioning mechanism to rotate; two telescopic lifting seats are fixedly connected to the bottom face of the main body, the telescopic ends of the two lifting seats are jointly and rotationally connected with a rotating shaft, and a third motor is fixedly arranged at the telescopic end of one lifting seat. According to the device, the lifting seat is started to ascend and descend, so that the thrust mechanism and the cutting mechanism are located at the same vertical height, when the main body advances forwards, the cutting mechanism trims grassland on the ground, stones on an advancing path are blocked through the thrust mechanism, and the situation that the stones touch the cutting mechanism, and consequently the cutting mechanism is damaged is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of lawn mower production, and in particular relates to a remote-controlled crawler lawn mower. Background Art

[0002] A lawn mower is also called a weed cutter, a lawn mower, a lawn trimmer, etc. A lawn mower is a mechanical tool used to trim lawns, vegetation, etc.

[0003] In the complex environment of the wild, there will be many stones in the grass. During the weeding process, some of the existing stones or large hard objects can easily enter the tool position at the bottom of the lawn mower, causing damage to the tool or the machine.

[0004] Existing remote-controlled crawler lawn mowers are generally provided with a blade guard to protect the blade during the weeding process. However, when the blade guard is set at a height that is too low, the ground may be damaged. When the blade guard is set at a height that is too high, it is difficult for the blade guard to push out some stones that are deeply embedded in the ground, which may cause the lawn mower to be stuck in place. In addition, when the ground has a certain slope, the blade guard may hit the stone and easily cause the lawn mower to overturn, making it impossible for the lawn mower to work normally. Summary of the invention

[0005] The object of the present invention is to provide a remote-controlled crawler lawn mower, aiming to solve the technical problem in the prior art that the remote-controlled crawler lawn mower cannot effectively remove stones deeply embedded in the ground.

[0006] The present invention is implemented as follows: a remote-controlled crawler lawn mower comprises a main body, crawler-type walking mechanisms for movement are arranged on both sides of the main body, a support frame is fixedly connected to the bottom of the main body, a cutting mechanism for mowing grass is connected to the support frame, a positioning mechanism capable of being connected and fixed to the ground is arranged at the bottom of the main body, and the cutting mechanism can drive the positioning mechanism to rotate;

[0007] Two retractable lifting seats are fixedly connected to the bottom surface of the main body, and the retractable ends of the two lifting seats are rotatably connected to a rotating shaft. A No. 3 motor is fixedly arranged at the retractable end of one of the lifting seats, and the output shaft of the No. 3 motor is fixedly connected to the rotating shaft. A thrust mechanism is arranged on the rotating shaft, and when the thrust mechanism rotates with the rotating shaft, the thrust mechanism can exert an oblique thrust on the stone by extending relative to the rotating shaft;

[0008] A guiding mechanism is arranged between the cutting mechanism and the thrust mechanism, and the guiding mechanism can elastically abut against the stone. The guiding mechanism is connected with a driving component, and the driving component is connected with a loosening mechanism. The driving component can push the loosening mechanism to slide along the guiding mechanism, and the loosening mechanism can be obliquely inserted into the bottom of the stone and loosen the soil layer at the bottom of the stone.

[0009] Further technical solution: the thrust mechanism includes a push rod, a second electric telescopic sleeve and a connecting rod;

[0010] The outer wall of the rotating shaft is rotatably connected to multiple push rods, and a retractable No. 2 electric telescopic sleeve is arranged outside the push rod along the length direction. Each push rod is rotatably connected to a connecting rod, and all the connecting rods are rotatably connected to the telescopic end of the No. 2 electric telescopic sleeve. The end surface of the push rod facing away from the rotating shaft is provided with a plurality of slots.

[0011] Further technical solution: the guide mechanism includes a No. 1 electric rod, a No. 2 electric rod, a guide plate and a No. 1 spring;

[0012] The No. 1 electric rod is fixedly connected to the bottom of the main body, the telescopic end of the No. 1 electric rod is fixedly connected to the No. 2 electric rod, the telescopic end of the No. 2 electric rod is rotatably connected to a guide plate, and a No. 1 spring is connected between the guide plate and the No. 2 electric rod.

[0013] Further technical solution: the driving assembly includes a driving rod and a slide plate, the end surface of the guide plate away from the main body is slidably connected with the slide plate, and a retractable driving rod is connected between the slide plate and the guide plate.

[0014] Further technical solution: the loosening mechanism includes a No. 2 motor, a spiral sleeve, a rotating plate, a No. 2 spring and a transmission assembly;

[0015] The No. 2 motor is fixedly connected to the skateboard, and the output shaft of the No. 2 motor passes through the skateboard, and the output shaft of the No. 2 motor is slidably connected with a spiral sleeve along the length direction, and the skateboard is rotatably connected with a rotating plate on the end face of the spiral sleeve, and a No. 2 spring is connected between the rotating plate and the spiral sleeve. A transmission assembly is arranged on the skateboard, and under the transmission action of the transmission assembly, the spiral sleeve can vibrate back and forth along the output shaft of the No. 2 motor.

[0016] Further technical solution: the transmission assembly includes a guide gear sleeve and an engagement block, the guide gear sleeve is fixedly connected to the end face of the slide plate, and the spiral sleeve is provided with a plurality of engagement blocks on the end face facing the slide plate, and all the engagement blocks are engaged with the guide gear sleeve.

[0017] Further technical solution: the cutting mechanism comprises a No. 1 electric telescopic sleeve, a cutting fan blade, a No. 1 motor and a gear transmission pair;

[0018] The fixed end of the No. 1 electric telescopic sleeve is rotatably connected to the support frame, the telescopic end of the No. 1 electric telescopic sleeve is fixedly connected to a cutting fan blade, the inner end surface of the support frame is fixedly connected to a No. 1 motor, and a gear transmission pair is transmission-connected between the output shaft of the No. 1 motor and the No. 1 electric telescopic sleeve.

[0019] Further technical solution: The positioning mechanism includes an electric push rod and a drill rod, the electric push rod is fixedly connected to the bottom surface of the main body, the telescopic end of the electric push rod is rotatably connected to the drill rod, and the drill rod is slidably connected to the inner wall of the No. 1 electric telescopic sleeve.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Start the lifting seat to make the thrust mechanism and the cutting mechanism at the same vertical height. When the main body moves forward, the cutting mechanism trims the grass on the ground and blocks the stones on the way forward through the thrust mechanism to prevent the stones from touching the cutting mechanism and causing damage to the cutting mechanism;

[0022] 2. When encountering a larger stone, when the push rod rotates, the No. 2 electric telescopic sleeve is started to reciprocate and retract, and the No. 2 electric telescopic sleeve drives the connecting rod to push all the push rods. While all the push rods apply an upward thrust to the stone, all the push rods apply a horizontal oblique thrust to the stone, so that the stone can break away from the ground and roll to one side of the main body, avoiding the stone from hindering the movement of the main body; further, adjusting the telescopic length range of the No. 2 electric telescopic sleeve can change the horizontal thrust direction of the stone, and adjusting the speed of the No. 3 motor can increase the upward thrust on the stone, so that the stone can break away from the ground as soon as possible;

[0023] 3. When the stone is tightly stuck to the ground and the guide plate is close to the ground, the No. 2 electric rod is started to drive the guide plate to elastically squeeze the bottom of the stone. At this time, the guide plate drives the loosening mechanism toward the ground at the bottom of the stone, and the loosening mechanism is guided by the guide plate to avoid contact between the loosening mechanism and the stone; the loosening mechanism can be obliquely inserted into the bottom of the stone and loosen the soil layer at the bottom of the stone, and the guide mechanism simultaneously applies an oblique upward thrust to the bottom of the stone, so that the stone is out of contact with the ground;

[0024] 4. When the ground has a certain slope, start the electric push rod to extend. At the same time, the drill rod rotates under the drive of the No. 1 electric telescopic sleeve. The electric push rod drives the drill rod to insert into the ground, thereby increasing the stability of the main body on the ground. At the same time, the spiral sleeve is inserted obliquely into the ground to increase the stability of the main body and prevent the main body from flipping over during the process of clearing stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the device structure at the bottom of the main body in the present invention.

[0027] Figure 3 It is a structural schematic diagram of the thrust mechanism in the present invention.

[0028] Figure 4It is a structural schematic diagram of the guide mechanism in the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the driving component in the present invention.

[0030] Figure 6 It is a structural schematic diagram of the soil loosening mechanism in the present invention.

[0031] Figure 7 It is a structural schematic diagram of the cutting mechanism in the present invention.

[0032] Figure 8 It is a structural schematic diagram of the positioning mechanism in the present invention.

[0033] In the attached drawings: 1. main body; 2. cutting mechanism; 21. No. 1 electric telescopic sleeve; 22. cutting fan blade; 23. No. 1 motor; 24. gear transmission pair; 3. lifting seat; 4. rotating shaft; 5. thrust mechanism; 51. push rod; 52. No. 2 electric telescopic sleeve; 53. connecting rod; 54. slot; 6. guide mechanism; 61. No. 1 electric rod; 62. No. 2 electric rod; 63. guide plate; 64. No. 1 spring; 7. driving assembly; 71. driving rod; 72. slide plate; 8. loosening mechanism; 81. No. 2 motor; 82. spiral sleeve; 83. rotating plate; 84. No. 2 spring; 85. transmission assembly; 851. guide gear sleeve; 852. meshing block; 9. positioning mechanism; 91. electric push rod; 92. drill rod; 10. No. 3 motor; 11. crawler walking mechanism; 12. support frame. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] like Figure 1-Figure 8 As shown, a remote-controlled crawler lawn mower provided by the present invention comprises a main body 1, crawler-type walking mechanisms 11 for movement are arranged on both sides of the main body 1, a support frame 12 is fixedly connected to the bottom of the main body 1, a cutting mechanism 2 for mowing grass is connected to the support frame 12, a positioning mechanism 9 capable of being connected and fixed to the ground is arranged at the bottom of the main body 1, and the cutting mechanism 2 can drive the positioning mechanism 9 to rotate;

[0037] Two telescopic lifting seats 3 are fixedly connected to the bottom surface of the main body 1. The telescopic ends of the two lifting seats 3 are rotatably connected to a rotating shaft 4. A third motor 10 is fixedly arranged at the telescopic end of one of the lifting seats 3. The output shaft of the third motor 10 is fixedly connected to the rotating shaft 4. A thrust mechanism 5 is arranged on the rotating shaft 4. When the thrust mechanism 5 rotates with the rotating shaft 4, the thrust mechanism 5 can exert an oblique thrust on the stone by extending relative to the rotating shaft 4.

[0038] A guide mechanism 6 is provided between the cutting mechanism 2 and the thrust mechanism 5. The guide mechanism 6 can elastically abut against the stone. The guide mechanism 6 is connected to a driving component 7. The driving component 7 is connected to a loosening mechanism 8. The driving component 7 can push the loosening mechanism 8 to slide along the guide mechanism 6. The loosening mechanism 8 can be obliquely inserted into the bottom of the stone and loosen the soil layer at the bottom of the stone.

[0039] In this embodiment, the lifting seat 3 is started to rise and fall, so that the thrust mechanism 5 and the cutting mechanism 2 are at the same vertical height. When the main body 1 moves forward, the cutting mechanism 2 trims the grass on the ground, and the thrust mechanism 5 blocks the stones on the forward path to prevent the stones from touching the cutting mechanism 2 and causing damage to the cutting mechanism 2.

[0040] When encountering a larger stone, the third motor 10 is started to rotate, the third motor 10 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the thrust mechanism 5 to rotate, and the thrust mechanism 5 simultaneously applies an oblique thrust to the stone by extending relative to the rotating shaft 4, thereby pushing the stone to one side of the main body 1;

[0041] When the stone is tightly stuck on the ground, the guide mechanism 6 is started, and the guide mechanism 6 can elastically contact with the stone, and guide the loosening mechanism 8 through the guide mechanism 6 to avoid the loosening mechanism 8 from touching the stone. The loosening mechanism 8 can be obliquely inserted into the bottom of the stone and loosen the soil layer at the bottom of the stone. At this time, the guide mechanism 6 can also apply an oblique upward thrust to the bottom of the stone, so that the stone is out of contact with the ground;

[0042] When the ground has a certain slope, when encountering stones, the main body 1 is easily hit and turned over. In this embodiment, the positioning mechanism 9 is started, and the positioning mechanism 9 can be connected and fixed to the ground. At the same time, the loosening mechanism 8 is obliquely inserted into the ground to increase the stability of the main body 1 and prevent the main body 1 from turning over during the process of clearing stones.

[0043] like Figure 3 As shown, a remote-controlled crawler mower provided by the present invention is shown, wherein the thrust mechanism 5 comprises a push rod 51, a second electric telescopic sleeve 52 and a connecting rod 53;

[0044] The outer wall of the rotating shaft 4 is rotatably connected to multiple push rods 51, and a retractable No. 2 electric telescopic sleeve 52 is arranged outside the push rod 51 along the length direction. Each push rod 51 is rotatably connected to a connecting rod 53, and all the connecting rods 53 are rotatably connected to the telescopic end of the No. 2 electric telescopic sleeve 52. The end surface of the push rod 51 facing away from the rotating shaft 4 is provided with a plurality of slots 54.

[0045] In this embodiment, the rotating shaft 4 drives all the push rods 51 to rotate. When the push rods 51 rotate, the second electric telescopic sleeve 52 is started to reciprocate and extend. The second electric telescopic sleeve 52 drives the connecting rod 53 to push all the push rods 51. At the same time, all the push rods 51 apply an upward thrust to the stone. At the same time, all the push rods 51 apply a horizontal oblique thrust to the stone, so that the stone can be separated from the ground and roll to the side of the main body 1, so as to prevent the stone from hindering the movement of the main body 1;

[0046] Furthermore, adjusting the telescopic length range of the No. 2 electric telescopic sleeve 52 can change the horizontal thrust direction of the stone, and adjusting the rotation speed of the No. 3 motor 10 can increase the upward thrust on the stone, so that the stone can be separated from the ground as quickly as possible.

[0047] like Figure 4 As shown, a remote-controlled crawler mower provided by the present invention is provided, wherein the guide mechanism 6 includes a No. 1 electric rod 61, a No. 2 electric rod 62, a guide plate 63 and a No. 1 spring 64;

[0048] The No. 1 electric rod 61 is fixedly connected to the bottom of the main body 1 , the telescopic end of the No. 1 electric rod 61 is fixedly connected to the No. 2 electric rod 62 , the telescopic end of the No. 2 electric rod 62 is rotatably connected to a guide plate 63 , and a No. 1 spring 64 is connected between the guide plate 63 and the No. 2 electric rod 62 .

[0049] In this embodiment, the No. 1 electric rod 61 is started to extend. When the guide plate 63 is close to the ground, the No. 2 electric rod 62 is started to extend. The No. 2 electric rod 62 drives the guide plate 63 to elastically squeeze the bottom of the stone. At this time, the guide plate 63 drives the loosening mechanism 8 toward the ground at the bottom of the stone to avoid damage to the loosening mechanism 8 caused by collision with the stone; the driving component 7 is started, and the driving component 7 pushes the loosening mechanism 8 to insert into the ground.

[0050] like Figure 5 As shown, a remote-controlled crawler mower provided by the present invention is provided, wherein the driving assembly 7 includes a driving rod 71 and a slide plate 72, the end surface of the guide plate 63 facing away from the main body 1 is slidably connected with the slide plate 72, and a retractable driving rod 71 is connected between the slide plate 72 and the guide plate 63.

[0051] In this embodiment, the driving rod 71 is started, and the driving rod 71 pushes the slide plate 72 to slide along the surface of the guide plate 63, and the slide plate 72 drives the loosening mechanism 8 to approach the ground.

[0052] like Figure 5 and Figure 6 As shown, a remote-controlled crawler mower provided by the present invention is provided, wherein the loosening mechanism 8 includes a second motor 81, a spiral sleeve 82, a rotating plate 83, a second spring 84 and a transmission assembly 85;

[0053] The No. 2 motor 81 is fixedly connected to the slide plate 72, and the output shaft of the No. 2 motor 81 passes through the slide plate 72, and the output shaft of the No. 2 motor 81 is slidably connected with a spiral sleeve 82 along the length direction, and the slide plate 72 is rotatably connected with a rotating plate 83 at the end face of the spiral sleeve 82, and a No. 2 spring 84 is connected between the rotating plate 83 and the spiral sleeve 82. A transmission assembly 85 is provided on the slide plate 72, and under the transmission action of the transmission assembly 85, the spiral sleeve 82 can vibrate back and forth along the output shaft of the No. 2 motor 81.

[0054] In this embodiment, the second motor 81 is started, and the second motor 81 drives the spiral sleeve 82 to rotate synchronously. Under the push of the driving rod 71, the slide plate 72 drives the spiral sleeve 82 to be inserted into the ground.

[0055] like Figure 6 As shown, a remote-controlled crawler mower provided by the present invention, the transmission assembly 85 includes a guide gear sleeve 851 and an engagement block 852, the guide gear sleeve 851 is fixedly connected to the end face of the slide plate 72, and the spiral sleeve 82 is provided with a plurality of engagement blocks 852 on the end face facing the slide plate 72, and all the engagement blocks 852 are engaged with the guide gear sleeve 851.

[0056] When the spiral sleeve 82 rotates, the spiral sleeve 82 drives the meshing block 852 to move relative to the guide gear sleeve 851. At this time, under the guidance of the guide gear sleeve 851, the spiral sleeve 82 moves along the output shaft of the second motor 81, and the second spring 84 is stretched. Under the elastic action of the second spring 84, the spiral sleeve 82 rotates and continuously vibrates along the output shaft of the second motor 81; and in the process of the spiral sleeve 82 being inserted into the ground, the spiral sleeve 82 loosens the ground by vibration at the same time;

[0057] Under the vibration force of the spiral sleeve 82, the guide plate 63 can vibrate synchronously, and the guide plate 63 abuts against the stone. Under the vibration action of the guide plate 63, the stone is subjected to the vibration thrust of the guide plate 63 on the bottom thereof, thereby accelerating the stone to leave the ground.

[0058] like Figure 7 As shown, a remote-controlled crawler mower provided by the present invention is shown, wherein the cutting mechanism 2 includes a No. 1 electric telescopic sleeve 21, a cutting blade 22, a No. 1 motor 23 and a gear transmission pair 24;

[0059] The fixed end of the No. 1 electric telescopic sleeve 21 is rotatably connected to the support frame 12, the telescopic end of the No. 1 electric telescopic sleeve 21 is fixedly connected to the cutting fan blade 22, the inner end surface of the support frame 12 is fixedly connected to the No. 1 motor 23, and the output shaft of the No. 1 motor 23 is transmission-connected to the No. 1 electric telescopic sleeve 21 via a gear transmission pair 24.

[0060] In this embodiment, the No. 1 electric telescopic sleeve 21 can drive the cutting blades 22 to adjust the height by telescopic movement, and the No. 1 motor 23 is started. The No. 1 motor 23 drives the No. 1 electric telescopic sleeve 21 to rotate through the gear transmission pair 24, and the No. 1 electric telescopic sleeve 21 drives the cutting blades 22 to cut the weeds on the ground.

[0061] like Figure 8 As shown, a remote-controlled crawler mower provided by the present invention, the positioning mechanism 9 includes an electric push rod 91 and a drill rod 92, the electric push rod 91 is fixedly connected to the bottom surface of the main body 1, the telescopic end of the electric push rod 91 is rotatably connected to the drill rod 92, and the drill rod 92 is slidably connected to the inner wall of the No. 1 electric telescopic sleeve 21.

[0062] In this embodiment, the electric push rod 91 is started to extend, and at the same time, the drill rod 92 rotates under the drive of the No. 1 electric telescopic sleeve 21, and the electric push rod 91 drives the drill rod 92 to be inserted into the ground, thereby increasing the stability of the main body 1 on the ground and preventing the main body 1 from tipping over.

[0063] The center of gravity of the remote-controlled intelligent lawn mowers on the market is located at the rear. In this way, when the machine climbs a slope, if the slope exceeds 20 degrees, the machine is prone to overturning due to the rearward center of gravity and the upward tilt of the front part. This embodiment is rearranged according to the center of gravity of the machine, and the battery box is placed in the front part of the main body 1 for balancing. In this way, the center of gravity of the machine is moved to the middle part of the machine, and the machine can easily climb a slope exceeding 45 degrees.

[0064] In this embodiment, the main body 1 is provided with a lifting guide rod, and a scale is marked on the lifting guide rod. The lifting guide rod can be lifted and lowered synchronously with the No. 1 electric telescopic sleeve 21. In this way, in the process of adjusting the lifting and lowering of the cutting blades 22, the grass retention height of the machine can be known according to the scale indicated by the lifting guide rod, which is simple and effective.

[0065] Working principle:

[0066] The lifting seat 3 is started to rise and fall, so that the thrust mechanism 5 and the cutting mechanism 2 are at the same vertical height. When the main body 1 moves forward, the cutting mechanism 2 trims the grass on the ground, and the thrust mechanism 5 blocks the stones on the forward path to prevent the stones from touching the cutting mechanism 2 and causing damage to the cutting mechanism 2;

[0067] When encountering a larger stone, the No. 3 motor 10 is started to rotate, the No. 3 motor 10 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives all the push rods 51 to rotate. When the push rods 51 rotate, the No. 2 electric telescopic sleeve 52 is started to reciprocate and retract, and the No. 2 electric telescopic sleeve 52 drives the connecting rod 53 to push all the push rods 51. At the same time, all the push rods 51 apply an upward thrust to the stone, and at the same time, all the push rods 51 apply a horizontal oblique thrust to the stone, so that the stone can be separated from the ground and roll to the side of the main body 1, so as to prevent the stone from hindering the movement of the main body 1;

[0068] Furthermore, adjusting the telescopic length range of the No. 2 electric telescopic sleeve 52 can change the horizontal thrust direction of the stone, and adjusting the rotation speed of the No. 3 motor 10 can increase the upward thrust on the stone, so that the stone can be separated from the ground as quickly as possible.

[0069] When the stone is tightly stuck on the ground, the first electric rod 61 is started to extend. When the guide plate 63 is close to the ground, the second electric rod 62 is started to extend. The second electric rod 62 drives the guide plate 63 to elastically squeeze the bottom of the stone. At this time, the guide plate 63 drives the loosening mechanism 8 toward the ground at the bottom of the stone. The loosening mechanism 8 is guided by the guide plate 63 to prevent the loosening mechanism 8 from touching the stone.

[0070] The loosening mechanism 8 can be inserted obliquely into the bottom of the stone and loosen the soil layer at the bottom of the stone. At this time, the guide mechanism 6 can also apply an oblique upward thrust to the bottom of the stone, so that the stone is out of contact with the ground;

[0071] Specifically, the No. 2 motor 81 is started, and the No. 2 motor 81 drives the spiral sleeve 82 to rotate synchronously. Under the push of the driving rod 71, the slide plate 72 drives the spiral sleeve 82 to insert into the ground; when the spiral sleeve 82 rotates, the spiral sleeve 82 drives the meshing block 852 to move relative to the guide gear sleeve 851. At this time, under the guidance of the guide gear sleeve 851, the spiral sleeve 82 moves along the output shaft of the No. 2 motor 81, and the No. 2 spring 84 is stretched. Under the elastic action of the No. 2 spring 84, the spiral sleeve 82 rotates and continuously vibrates along the output shaft of the No. 2 motor 81; and then in the process of the spiral sleeve 82 being inserted into the ground, the spiral sleeve 82 loosens the ground by vibration at the same time;

[0072] Under the vibration force of the spiral sleeve 82, the guide plate 63 can vibrate synchronously, and the guide plate 63 abuts against the stone. Under the vibration action of the guide plate 63, the stone is subjected to the vibration thrust of the guide plate 63 on the bottom thereof, thereby accelerating the stone to leave the ground.

[0073] When the ground has a certain slope, the electric push rod 91 is started to extend, and the drill rod 92 rotates under the drive of the No. 1 electric telescopic sleeve 21. The electric push rod 91 drives the drill rod 92 to be inserted into the ground, thereby increasing the stability of the main body 1 on the ground. At the same time, the spiral sleeve 82 is inserted obliquely into the ground to increase the stability of the main body 1 and prevent the main body 1 from flipping over during the process of clearing stones.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A remote-controlled crawler lawn mower, comprising a main body (1), with crawler-type walking mechanisms (11) for movement arranged on both sides of the main body (1), characterized in that: The bottom of the main body (1) is fixedly connected to a support frame (12), the support frame (12) is connected to a cutting mechanism (2) for mowing grass, the bottom of the main body (1) is provided with a positioning mechanism (9) that can be connected and fixed to the ground, and the cutting mechanism (2) can drive the positioning mechanism (9) to rotate; Two telescopic lifting seats (3) are fixedly connected to the bottom surface of the main body (1), and the telescopic ends of the two lifting seats (3) are rotatably connected to a rotating shaft (4). A third motor (10) is fixedly arranged at the telescopic end of one of the lifting seats (3), and the output shaft of the third motor (10) is fixedly connected to the rotating shaft (4). A thrust mechanism (5) is arranged on the rotating shaft (4), and when the thrust mechanism (5) rotates with the rotating shaft (4), the thrust mechanism (5) can exert an oblique thrust on the stone by extending relative to the rotating shaft (4); A guide mechanism (6) is provided between the cutting mechanism (2) and the thrust mechanism (5), the guide mechanism (6) being capable of elastically contacting with the stone, the guide mechanism (6) being connected to a driving assembly (7), the driving assembly (7) being connected to a loosening mechanism (8), the driving assembly (7) being capable of pushing the loosening mechanism (8) to slide along the guide mechanism (6), the loosening mechanism (8) being capable of obliquely inserting into the bottom of the stone and loosening the soil layer at the bottom of the stone.

2. A remote-controlled crawler lawn mower according to claim 1, characterized in that: The thrust mechanism (5) comprises a push rod (51), a second electric telescopic sleeve (52) and a connecting rod (53); The outer wall of the rotating shaft (4) is rotatably connected to a plurality of push rods (51), and a telescopic No. 2 electric telescopic sleeve (52) is arranged outside the push rod (51) along the length direction. Each push rod (51) is rotatably connected to a connecting rod (53), and all the connecting rods (53) are rotatably connected to the telescopic end of the No. 2 electric telescopic sleeve (52). The end surface of the push rod (51) facing away from the rotating shaft (4) is provided with a plurality of slots (54).

3. A remote-controlled crawler lawn mower according to claim 1, characterized in that: The guide mechanism (6) comprises a No. 1 electric rod (61), a No. 2 electric rod (62), a guide plate (63) and a No. 1 spring (64); The first electric rod (61) is fixedly connected to the bottom of the main body (1); the telescopic end of the first electric rod (61) is fixedly connected to the second electric rod (62); the telescopic end of the second electric rod (62) is rotatably connected to a guide plate (63); and a first spring (64) is connected between the guide plate (63) and the second electric rod (62).

4. A remote-controlled crawler lawn mower according to claim 3, characterized in that: The driving assembly (7) comprises a driving rod (71) and a slide plate (72); the end surface of the guide plate (63) facing away from the main body (1) is slidably connected to the slide plate (72); a retractable driving rod (71) is connected between the slide plate (72) and the guide plate (63).

5. A remote-controlled crawler mower according to claim 4, characterized in that: The loosening mechanism (8) comprises a No. 2 motor (81), a spiral sleeve (82), a rotating plate (83), a No. 2 spring (84) and a transmission assembly (85); The second motor (81) is fixedly connected to the slide plate (72); the output shaft of the second motor (81) passes through the slide plate (72); and the output shaft of the second motor (81) is slidably connected with a spiral sleeve (82) along the length direction; the slide plate (72) is rotatably connected with a rotating plate (83) at the end face facing the spiral sleeve (82); a second spring (84) is connected between the rotating plate (83) and the spiral sleeve (82); a transmission assembly (85) is arranged on the slide plate (72); under the transmission action of the transmission assembly (85), the spiral sleeve (82) can reciprocate and vibrate along the output shaft of the second motor (81).

6. A remote-controlled crawler lawn mower according to claim 5, characterized in that: The transmission assembly (85) comprises a guide gear sleeve (851) and an engagement block (852); the guide gear sleeve (851) is fixedly connected to the end surface of the slide plate (72); the spiral sleeve (82) is provided with a plurality of engagement blocks (852) on the end surface facing the slide plate (72); and all the engagement blocks (852) are engaged with the guide gear sleeve (851).

7. A remote-controlled crawler lawn mower according to claim 1, characterized in that: The cutting mechanism (2) comprises a No. 1 electric telescopic sleeve (21), a cutting blade (22), a No. 1 motor (23) and a gear transmission pair (24); The fixed end of the No. 1 electric telescopic sleeve (21) is rotatably connected to the support frame (12); the telescopic end of the No. 1 electric telescopic sleeve (21) is fixedly connected to a cutting blade (22); a No. 1 motor (23) is fixedly connected to the inner end surface of the support frame (12); and a gear transmission pair (24) is transmission-connected between the output shaft of the No. 1 motor (23) and the No. 1 electric telescopic sleeve (21).

8. A remote-controlled crawler mower according to claim 7, characterized in that: The positioning mechanism (9) comprises an electric push rod (91) and a drill rod (92); the electric push rod (91) is fixedly connected to the bottom surface of the main body (1); the telescopic end of the electric push rod (91) is rotatably connected to the drill rod (92); and the drill rod (92) is slidably connected to the inner wall of the No. 1 electric telescopic sleeve (21).

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