Lawn mower with support structure

Abstract

The application discloses a mower with a supporting structure and belongs to the technical field of gardening tools, which is characterized in that the mower comprises a mower main body, a lifting platform and a driving element, the bottom of the mower main body is provided with a ball head seat, the top of the lifting platform is provided with a ball head body, the ball head body is movably embedded in the ball head seat, the mower main body can be universally rotated relative to the lifting platform, the driving element is used for driving the lifting platform to vertically lift, and the bottom of the lifting platform can be in contact with the ground so as to support the mower main body away from the ground. When the mower turns in place, the lifting platform supports the mower away from the ground, so that the turning operation in place is more flexible, the abrasion of the turf surface layer and root and the mower itself caused by sliding friction in the traditional turning process is avoided, and the mower can also adapt to different ground working environments and has better adaptability.

Description

Technical Field

[0001] This invention belongs to the field of gardening machinery technology, and specifically relates to a lawn mower with a support structure. Background Technology

[0002] A lawnmower, also known as a lawn mower, lawn trimmer, or lawn trimmer, is a mechanical tool used to trim lawns and other vegetation. Its widespread application helps to promote agricultural mechanization, improve work efficiency and agricultural production benefits, and is of great significance to my country's agricultural development.

[0003] Existing handheld lawnmowers rely entirely on human power to overcome the sliding friction between the tires and the turf when turning in place. This steering method has significant drawbacks: First, the direct sliding friction between the tires and the turf can easily damage the surface and roots of the turf, leading to problems such as bald patches and ground indentations, thus compromising the integrity of the lawn. Second, the manual steering method is labor-intensive, lacks steering flexibility, and accelerates tire wear. Third, lawn mowers typically operate on uneven surfaces with varying grass heights, soil hardness, and micro-topographical undulations. In complex terrain environments, these steering defects become even more pronounced. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a lawnmower with a support structure. The technical problem to be solved by this invention is: how to make the lawnmower more flexible in turning on the spot.

[0005] The above-mentioned technical objectives of the present invention can be achieved through the following technical solution: a lawnmower with a support structure, including a lawnmower body, a lifting platform and a drive component, wherein a ball head seat is provided at the bottom of the lawnmower body, and a ball head body is provided at the top of the lifting platform, the ball head body is movably embedded in the ball head seat, the lawnmower body can rotate omnidirectionally relative to the lifting platform, the drive component is used to drive the lifting platform to lift it vertically, and the bottom of the lifting platform can contact the ground to lift the lawnmower body off the ground;

[0006] The lifting platform includes a lifting base plate, two scissor arm telescopic frames, and a fixed base. The lifting base plate is used to contact the ground. One fork arm at one end of the scissor arm telescopic frame is hinged to the lifting base plate, and the other fork arm at that end is slidably disposed in a sliding channel one of the lifting base plate. One fork arm at the other end of the scissor arm telescopic frame is hinged to the fixed base one, and the other fork arm at that end is slidably disposed in a sliding channel two of the fixed base one. The ball head is disposed on the upper surface of the fixed base one. The driving member is used to drive the corresponding fork arm to slide along the sliding channel two of the fixed base one.

[0007] In the aforementioned lawnmower with a support structure, the main body of the lawnmower includes a body, several driving wheels, a mowing assembly, a pipe, a suction pump, and a collection box. The body is provided with a handheld part, and the several driving wheels are respectively rotatably arranged on both sides of the body. The mowing assembly is located at the front end of the body to cut grass. The pipe and the collection box are both located on the body. The suction pump is located inside the pipe. The inlet end of the pipe is close to and aligned with the mowing assembly, and the outlet end of the pipe is connected to the collection box.

[0008] In the aforementioned lawnmower with a support structure, the collection box has a downward-facing discharge port, and a cover plate for sealing the discharge port is slidably disposed inside the machine body. When the lifting platform lifts the lawnmower body off the ground, the lifting platform can drive the cover plate to slide through the linkage component, thereby opening the discharge port. The cover plate can slide back to its original position, closing the discharge port.

[0009] In the aforementioned lawnmower with a support structure, the linkage component includes a connecting part, a connecting cable, and a pulley. The connecting part is located at the hinge point between two fork arms. The pulley is rotatably mounted on the fixed base. One end of the connecting cable is connected to the connecting part and passes around the pulley. A linkage component is slidably disposed within the machine body to drive the cover plate to slide and open the discharge port. The other end of the connecting cable is connected to the linkage component. When the hinge point between the two fork arms descends and drives the connecting part, the connecting part drives the linkage component to slide through the connecting cable, thereby causing the linkage component to drive the cover plate to slide and open the discharge port.

[0010] In the aforementioned lawnmower with a support structure, the machine body has a sliding groove for the cover plate to slide. A return spring is installed in the groove to allow the cover plate to slide back and close the discharge port. A guide rod is also installed in the groove to guide the cover plate, and the return spring is sleeved on the outside of the guide rod. A receiving groove is formed on the side wall of the cover plate, and a second return spring is installed in the receiving groove. A linkage is slidably installed in the receiving groove, and the linkage is connected to the outer end of the second return spring. The linkage can cooperate with the bottom of the receiving groove to press the second return spring. The linkage can slide against one side of the linkage, thereby driving the cover plate to slide. The machine body has an installation... The mounting groove contains a reset spring. The linkage is slidably disposed within the mounting groove and connected to one end of the reset spring. The other end of the reset spring is connected to the side wall of the mounting groove. A guide rod two for guiding the linkage is disposed within the mounting groove. The reset spring is sleeved on the outside of the guide rod two. A reset block corresponding to the linkage is disposed within the mounting groove. A reset inclined surface one is disposed on the reset block. A reset inclined surface two is disposed on the other side of the linkage. The reset block has an avoidance channel to allow the linkage to pass through. The sliding of the linkage allows the reset inclined surface one to abut against the reset inclined surface two, thereby causing the linkage to slide into the receiving groove and disengage from the linkage.

[0011] In the aforementioned lawnmower with a support structure, the collection box and the handheld part are located on the same side of the machine body.

[0012] A lawnmower with a support structure includes a lawnmower body, a lifting platform, and a drive component. The bottom of the lawnmower body is provided with a ball joint seat, and the top of the lifting platform is provided with a ball head. The ball head is movably embedded in the ball joint seat. The lawnmower body can rotate omnidirectionally relative to the lifting platform. The drive component is used to drive the lifting platform to lift it vertically. The bottom of the lifting platform can contact the ground to lift the lawnmower body off the ground.

[0013] The lawnmower body includes a machine body, several driving wheels, a mowing assembly, a pipe, a suction pump, and a collection box. The machine body is equipped with a hand handle. The several driving wheels are rotatably mounted on both sides of the machine body. The mowing assembly is located at the front end of the machine body to cut grass. The pipe and the collection box are both located on the machine body. The suction pump is located inside the pipe. The inlet end of the pipe is close to and aligned with the mowing assembly. The outlet end of the pipe is connected to the collection box.

[0014] The collection box has a downward-facing discharge port, and a cover plate for sealing the discharge port is slidably disposed inside the machine body. When the lifting platform lifts the main body of the lawnmower off the ground, the lifting platform can drive the cover plate to slide through the linkage component, thereby opening the discharge port. The cover plate can slide back to its original position, closing the discharge port.

[0015] The lifting platform includes a fixed base, a drive cylinder, and a second drive cylinder. The first drive cylinder is hinged to the fixed base. The output end of the first drive cylinder has a support part for contacting the ground. The second drive cylinder is slidably disposed in a sliding channel three of the fixed base. The output end of the second drive cylinder has a support part two for contacting the ground. The first drive cylinder and the second drive cylinder are hinged and spaced apart. The driving component is used to drive the second drive cylinder to slide along the sliding channel three of the fixed base.

[0016] In the above-mentioned lawnmower with a support structure, the first support part includes two rotatable casters, which are spaced apart. The second support part includes at least one rotatable caster, and the two casters and the caster are arranged in a triangular structure.

[0017] In the aforementioned lawnmower with a support structure, the linkage component includes a connecting part, a connecting cable, and a pulley. The connecting part is located at the hinge point between the first drive cylinder and the second drive cylinder. The pulley is rotatably mounted on the second fixed base. One end of the connecting cable is connected to the connecting part and passes around the pulley. A linkage component is slidably disposed within the machine body to drive the cover plate to slide and open the discharge port. The other end of the connecting cable is connected to the linkage component. When the hinge point between the first drive cylinder and the second drive cylinder descends and drives the connecting part, the connecting part drives the linkage component to slide through the connecting cable, thereby causing the linkage component to drive the cover plate to slide and open the discharge port.

[0018] In summary, the advantages of this invention compared to the prior art are as follows:

[0019] 1. By setting a ball joint at the bottom of the lawnmower body and a ball joint on the top of the lifting platform, the ball joint is movably embedded in the ball joint. When it is necessary to turn in place, the drive unit drives the lifting platform to move vertically, so that the bottom of the lifting platform contacts the ground and lifts the lawnmower body off the ground. At this time, the user can easily push the lawnmower body to turn in place, which makes the lawnmower body more flexible in turning in place and avoids the wear and tear on the turf surface and roots and the lawnmower body caused by sliding friction during the traditional turning process. At the same time, it can also adapt to different ground working environments and has better adaptability.

[0020] 2. The grass clippings cut by the mowing components are sucked into the collection box through the pipe by the suction pump. When the user needs to clean the collection box, he only needs to drive the lifting platform to lift it vertically by the drive component, so that the lifting platform lifts the main body of the mower off the ground. At this time, the lifting platform automatically drives the cover plate to slide through the linkage component, so that the discharge port at the bottom of the collection box opens. The grass clippings in the collection box are then smoothly discharged from the discharge port under the action of gravity. After cleaning, the cover plate can slide back to its original position, so that the discharge port closes again, and the mower can start normal operation. There is no need to manually open or close the discharge port, which makes it more convenient to use and significantly improves the convenience and efficiency of cleaning.

[0021] 3. Through the cooperation of the ball head and the ball head seat, the main body of the lawnmower can rotate omnidirectionally relative to the lifting platform. When it is necessary to clean the collection box, since a large amount of grass clippings have been collected in the collection box, and the collection box and the handheld part are located on the same side of the machine body, the gravity on this side is significant. Therefore, the main body of the lawnmower naturally rotates and tilts to this side under its own weight until the main body of the lawnmower and the lifting platform form a stable contact. The tilted posture of the main body of the lawnmower causes the collection box to also be in a tilted state. Under the dual action of gravity and tilting guidance, the grass clippings in the collection box can be discharged from the discharge port more quickly and thoroughly, greatly improving the cleaning efficiency. Moreover, the whole process is completed autonomously without the need for the user to manually adjust the tilt angle, making it more labor-saving and convenient to use. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the lawnmower body in the first embodiment, with the body lifted off the ground.

[0023] Figure 2 This is a schematic diagram of the lifting platform in Embodiment 1;

[0024] Figure 3 This is a cross-sectional view of Embodiment 1;

[0025] Figure 4 for Figure 3 Enlarged view of part A;

[0026] Figure 5 This is a partial cross-sectional view of Embodiment 1;

[0027] Figure 6 for Figure 5 Enlarged view of part B;

[0028] Figure 7 This is a schematic diagram of the lifting platform in Example 2.

[0029] Reference numerals: 1. Main body of lawnmower; 111. Machine body; 112. Traveling wheels; 113. Mowing assembly; 114. Pipeline; 115. Suction pump; 116. Collection box; 2. Lifting platform; 211. Lifting base plate; 212. Scissor arm telescopic frame; 213. Fork arm; 214. Fixed base one; 215. Fixed base two; 216. Drive cylinder one; 217. Drive cylinder two; 3. Drive component; 4. Ball joint seat; 5. Ball joint body; 6. Handle; 7. Discharge port; 8. Cover plate; 9. Sliding channel one; 10. Sliding channel 11. Sliding channel 3; 12. Universal caster 1; 13. Universal caster 2; 14. Linkage assembly; 141. Connecting part; 142. Connecting cable; 143. Pulley; 15. Receiving groove; 16. Return spring 2; 17. Linkage part; 18. Mounting groove; 19. Return tension spring; 20. Guide rod 2; 21. Return block; 22. Return inclined surface 1; 23. Return inclined surface 2; 24. Slide groove; 25. Return spring 1; 26. Cable passage; 27. Guide rod 1; 28. Limiting part; 30. Placement groove; 31. Linkage component. Detailed Implementation

[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0031] Example 1:

[0032] A lawnmower with a support structure, such as Figures 1 to 6 As shown, it includes the lawnmower body 1, the lifting platform 2, and the drive unit 3.

[0033] The bottom of the lawnmower body 1 is provided with a ball head seat 4, and the top of the lifting platform 2 is provided with a ball head body 5. The ball head body 5 is movably embedded in the ball head seat 4. Through the cooperation of the ball head body 5 and the ball head seat 4, the lawnmower body 1 can rotate in all directions relative to the lifting platform 2, thereby meeting the usage needs under different working conditions.

[0034] Specifically, the lawnmower body 1 includes a body 111, several driving wheels 112, a mowing assembly 113, a pipe 114, a suction pump 115, and a collection box 116. The driving wheels 112 are respectively rotatably arranged on both sides of the body 111 and opposite each other. The mowing assembly 113 is located at the front end of the body 111 to cut grass. In this embodiment, there are two mowing assemblies 113 and they are spaced apart. The mowing assembly 113 includes a motor and a cutting blade. The motor is installed at the front end of the body 111, and the output end of the motor is connected to the cutting blade. The motor drives the cutting blade to cut the grass into grass clippings.

[0035] Both pipe 114 and collection box 116 are installed on the machine body 111. Pipe 114 is located inside the machine body 111, with the inlet end of pipe 114 close to and aligned with the mowing component 113. Collection box 116 is located outside the machine body 111, with the outlet end of pipe 114 extending out of the machine body 111 and connected to collection box 116. Suction pump 115 is installed inside pipe 114, thereby enabling the suction pump 115 to suck in the grass clippings formed by the mowing component 113 through pipe 114 and collect them into collection box 116, thus achieving automatic collection of grass clippings and improving work efficiency.

[0036] Furthermore, the body 111 is provided with a hand grip 6 for holding, and the hand grip 6 and the collection box 116 are located on the same side of the body 111.

[0037] In this embodiment, the bottom of the body 111 is provided with a mounting groove 30, and the ball head seat 4 is set at the bottom of the mounting groove 30. The mounting groove 30 is used to accommodate the lifting platform 2, and the lifting platform 2 is hidden in the mounting groove 30 when not in operation, so as to avoid interfering with the normal movement of the lawnmower for mowing. It also makes the overall structure more compact, effectively reduces space occupation, and provides a certain degree of protection for the lifting platform 2.

[0038] In this embodiment, the lifting platform 2 includes a lifting base plate 211, two scissor arm telescopic frames 212, and a fixed base 214. The ball head 5 is disposed on the upper surface of the fixed base 214. The lifting base plate 211 is used to contact the ground. One fork arm 213 at one end of the scissor arm telescopic frame 212 is hinged to the lifting base plate 211, and the other fork arm 213 at the same end of the scissor arm telescopic frame 212 is slidably disposed in the sliding channel 9 of the lifting base plate 211. One fork arm 213 at the other end of the scissor arm telescopic frame 212 is hinged to the fixed base 214, and the other fork arm 213 at the same end of the scissor arm telescopic frame 212 is slidably disposed in the sliding channel 10 of the fixed base 214. Both the sliding channel 9 and the sliding channel 10 are arranged in the horizontal direction.

[0039] The driving component 3 is used to drive the lifting platform 2 to move vertically. Specifically, the driving component 3 drives the corresponding fork arm 213 to slide along the sliding channel 10 of the fixed base 214. At this time, the hinge point between the two fork arms 213 rises or falls, thereby realizing the lifting of the lifting base plate 211. The driving component 3 is preferably a lead screw linear module. The lead screw linear module is existing technology. How the lead screw linear module is connected to the corresponding fork arm 213 and drives it to slide along the sliding channel 10 of the fixed base 214 is existing technology and will not be described in detail. As another solution, the driving component 3 can also be a cylinder or an electric cylinder.

[0040] The bottom of the lifting platform 2 can contact the ground, thereby lifting the lawnmower body 1 off the ground. Specifically, the driving component 3 drives the corresponding fork arm 213 to slide along the sliding channel 10 of the fixed base 214, causing the hinge point between the two fork arms 213 to move downward. At this time, the lifting base plate 211 moves towards the ground until the lower surface of the lifting base plate 211 contacts the ground and gradually lifts the lawnmower body 1 off the ground. Since several travel wheels 112 of the lawnmower body 1 are no longer in contact with the ground, the lawnmower body 1 is now in a position where... In the suspended state, through the cooperation of the ball head 5 and the ball head seat 4, the user can easily push the lawnmower body 1 to complete the on-the-spot turning, making the on-the-spot turning operation of the lawnmower more flexible. It also effectively avoids the problem of wear and tear on the turf surface, roots, and itself caused by sliding friction during the turning process of traditional lawnmowers. Moreover, since the lawnmower does not slide friction with the ground when turning on the spot, it is easier to adapt to different ground working environments. That is, it can quickly and flexibly complete the on-the-spot turning of the lawnmower in different ground working environments, with better adaptability.

[0041] It should be further explained that by lifting the lawnmower body 1 off the ground through the lifting platform 2, the lawnmower body 1 is in a suspended state, and the lawnmower body 1 can rotate in all directions relative to the lifting platform 2, which makes it more convenient for users to inspect the lawnmower or replace parts (cutting blades).

[0042] The collection box 116 has a downward-facing discharge port 7. A cover plate 8 for sealing the discharge port 7 is slidably installed inside the machine body 111. Specifically, a sliding groove 24 for sliding the cover plate 8 is opened inside the machine body 111. A guide rod 27 for guiding the cover plate 8 is installed in the sliding groove 24. The guide rod 27 is movably inserted through the cover plate 8. By guiding the cover plate 8 through the guide rod 27, the stability of the cover plate 8 when sliding is ensured. As the cover plate 8 slides along the guide rod 27, the discharge port 7 can be exposed or the cover plate 8 can completely cover the discharge port 7, thereby controlling the opening or closing of the discharge port 7.

[0043] The slide 24 is equipped with a reset spring 25 for sliding the cover plate 8 back to close the outlet 7. The reset spring 25 is sleeved on the outside of the guide rod 27. One end of the reset spring 25 is connected to the bottom surface of the slide 24, and the other end of the reset spring 25 is connected to the cover plate 8. When the cover plate 8 slides along the guide rod 27 to expose the outlet 7, the cover plate 8 cooperates with the bottom surface of the slide 24 to press the reset spring 25. The reset of the cover plate 8 is achieved by the elastic restoring force of the reset spring 25 pushing the cover plate 8 to slide along the guide rod 27 until the outlet 7 is completely sealed.

[0044] Furthermore, to ensure the stability of the cover plate 8 in each reset position, a limiting part 28 is provided inside the machine body 111 to limit the sliding reset of the cover plate 8. That is, when the elastic restoring force of the reset spring 25 pushes the cover plate 8 to slide reset along the guide rod 27, the inner side wall of the limiting part 28 abuts against the end of the cover plate 8, thereby limiting the cover plate 8 from continuing to slide. At this time, the cover plate 8 has completely sealed the discharge port 7.

[0045] When the lifting platform 2 lifts the lawnmower body 1 off the ground, the lifting platform 2 can drive the cover plate 8 to slide through the linkage component 14, thereby opening the discharge port 7. The cover plate 8 can slide back to its original position, closing the discharge port 7.

[0046] In this embodiment, the linkage component 14 includes a connecting part 141, a connecting cable 142, and a pulley 143. The connecting part 141 is located at the hinge point between the two fork arms 213. The pulley 143 is rotatably mounted on the fixed base 214. One end of the connecting cable 142 is connected to the connecting part 141 and passes around the pulley 143. A linkage component 31 is slidably arranged inside the machine body 111 to drive the cover plate 8 to slide and open the discharge port 7. The other end of the connecting cable 142 is connected to the linkage component 31. When the hinge point between the two fork arms 213 descends and drives the connecting part 141, the connecting part 141 drives the linkage component 31 to slide through the connecting cable 142, thereby causing the linkage component 31 to drive the cover plate 8 to slide and open the discharge port 7.

[0047] As the hinge point between the two fork arms 213 gradually descends, the lifting base plate 211 moves towards the ground and contacts the ground, lifting the lawnmower body 1 off the ground. At this time, the connecting part 141 moves downward along the hinge point between the two fork arms 213. The connecting part 141 drives the cover plate 8 to slide along the guide rod 27 through the connecting cable 142, so that the discharge port 7 is exposed and the discharge port 7 is in the open state.

[0048] Furthermore, the body 111 has an installation slot 18 and a cable passage 26 for the corresponding connecting cable 142 to pass through. The cable passage 26 connects the installation slot 18 and the placement slot 30.

[0049] Both sides of the cover plate 8 are provided with receiving grooves 15. A corresponding reset spring 16 is provided in the receiving groove 15. A linkage part 17 is slidably provided in the receiving groove 15, and the linkage part 17 is connected to the outer end of the reset spring 16. The linkage part 17 slides into the receiving groove 15 and can cooperate with the bottom of the receiving groove 15 to squeeze the reset spring 16.

[0050] A reset spring 19 is provided in the mounting groove 18. The linkage 31 is slidably disposed in the mounting groove 18 and connected to one end of the reset spring 19. The other end of the reset spring 19 is connected to the side wall of the mounting groove 18. A guide rod 20 for guiding the linkage 31 is provided in the mounting groove 18. The reset spring 19 is sleeved on the outside of the guide rod 20. The guide rod 20 guides the sliding of the linkage 31, thereby ensuring that the linkage 31 remains stable when sliding.

[0051] Specifically, when the linkage 31 slides along the guide rod 20 and abuts against one side of the linkage part 17, the linkage 31 continues to slide, causing the cover plate 8 to slide along the guide rod 27 to expose the outlet 7. At the same time, the cover plate 8 also cooperates with the bottom surface of the slide groove 24 to press the reset spring 25.

[0052] The mounting groove 18 is provided with a reset block 21 corresponding to the linkage part 17. The reset block 21 is provided with a reset inclined surface 22, and the other side of the linkage part 17 is provided with a reset inclined surface 23. As the linkage part 17 slides, the reset inclined surface 22 on the reset block 21 can abut against the reset inclined surface 23 on the linkage part 17. The reset block 21 has a clearance channel (not shown) to avoid the passage of the linkage member 31. Through the cooperation of the reset inclined surface 22 and the reset inclined surface 23, the linkage part 17 slides into the receiving groove 15 and squeezes the reset spring 2 16 until the linkage part 17 disengages from the linkage member 31. Due to the loss of the restriction of the linkage member 31 on the linkage part 17, under the action of the elastic restoring force of the reset spring 25, the cover plate 8 slides along the guide rod 27 until the discharge port 7 is completely sealed.

[0053] Furthermore, the end of the linkage 31 that contacts the linkage part 17 is cylindrical. When the linkage part 17 disengages from the linkage 31, the elastic restoring force of the reset spring 19 causes the linkage 31 to slide back to its original position. The end of the linkage 31 contacts the reset inclined surface 23 on the linkage part 17. The linkage 31 pushes the linkage part 17 to slide into the receiving groove 15 and squeezes the reset spring 16 until the linkage part 17 disengages from the linkage 31, thereby ensuring that the linkage 31 can be reset smoothly.

[0054] It should be noted that since the main body 1 of the lawnmower can rotate omnidirectionally relative to the lifting platform 2, and the handheld part 6 and the collection box 116 are located on the same side of the body 111, when the main body 1 of the lawnmower is lifted off the ground and the discharge port 7 of the collection box 116 is open, the lawnmower body 1 will naturally rotate and tilt to that side under its own weight because a large amount of grass clippings have been collected in the collection box 116. This continues until the lawnmower body 1 and the lifting platform 2 form a stable contact. At this time, both the lawnmower body 1 and the collection box 116 are tilted and the tilt angle is stable. Under the combined action of gravity and tilt guidance, the grass clippings in the collection box 116 can be discharged from the discharge port more quickly and thoroughly, greatly improving cleaning efficiency. The whole process is completed autonomously without the need for the user to manually adjust the tilt angle, making it more labor-saving and convenient to use.

[0055] In this embodiment, a control method based on a lawnmower is also included. When the collection box needs to be cleaned, the corresponding fork arm 213 is driven by the drive component 3 to slide along the sliding channel 10 of the fixed base 214, so that the hinge point between the two fork arms 213 moves downward by a first distance, and the lifting plate 211 moves towards the ground until the lower surface of the lifting plate 211 contacts the ground and gradually lifts the lawnmower body 1 off the ground; at the same time, the connecting part 141 moves downward by a first distance along with the hinge point between the two fork arms 213, and the connecting part 141 drives the linkage component 31 to slide and abut against one side of the linkage part 17 through the connecting cable 142, and drives the cover plate 8 to slide along the guide rod 27 to expose the discharge port 7, so that the discharge port 7 is in the open state, and the grass clippings in the collection box 116 are discharged from the discharge port 7 under the action of gravity;

[0056] After all the grass clippings in the collection box 116 are discharged, the drive unit 3 drives the corresponding fork arm 213 to slide along the sliding channel 10 of the fixed base 214, so that the hinge point between the two fork arms 213 continues to move downward a second distance. At the same time, the connecting part 141 also moves downward a second distance along with the hinge point between the two fork arms 213. The connecting part 141 drives the linkage 31 to continue sliding through the connecting cable 142. The linkage 31 pushes the linkage part 17 and the cover plate 8 to continue sliding until the reset slope on the reset block 21. The first 22 abuts against the second 23 of the reset slope on the linkage part 17. Under the cooperation of the first 22 and the second 23, the linkage part 17 slides into the receiving groove 15 and squeezes the second 16 of the reset spring until the linkage part 17 and the linkage member 31 are disengaged and pass through the clearance channel. At this time, the elastic restoring force of the first 25 of the reset spring causes the cover plate 8 to slide along the guide rod 27 until it abuts against the limiting part 28. At this time, the cover plate 8 completes the sealing of the discharge port 7. At the same time, the elastic restoring force of the reset tension spring 19 causes the linkage member 31 to slide and reset.

[0057] Example 2:

[0058] The difference between Example 2 and Example 1 is that, as Figure 7 As shown, the lifting platform 2 includes a fixed base 215, a drive cylinder 216, and a drive cylinder 217. The drive cylinder 216 is hinged to the fixed base 215. The output end of the drive cylinder 216 is provided with a support part 1 for contacting the ground. The drive cylinder 217 is slidably disposed in the sliding channel 3 11 of the fixed base 215. The output end of the drive cylinder 217 is provided with a support part 2 for contacting the ground. The drive cylinder 216 and the drive cylinder 217 are hinged and spaced apart. The drive component 3 is used to drive the drive cylinder 217 to slide along the sliding channel 3 11 of the fixed base 215.

[0059] When it is necessary to lift the lawnmower body 1 off the ground, the drive cylinder 217 is driven by the drive component 3 to slide along the sliding channel 311 of the fixed base 215, so that the hinge point between the drive cylinder 1 216 and the drive cylinder 217 descends. After reaching the corresponding position, the output ends of the drive cylinder 1 216 and the drive cylinder 217 extend out, and the support part 1 and the support part 2 contact the ground to lift the lawnmower body 1 off the ground. When it is necessary to reset, the output ends of the drive cylinder 1 216 and the drive cylinder 217 retract, the support part 1 and the support part 2 disengage from the ground, and then the drive component 3 drives the drive cylinder 217 to slide back to reset. The lifting platform 2 is folded and stored in the placement slot 30 without affecting the normal lawnmower operation.

[0060] It should be noted that in this embodiment, the machine body 111 needs to be equipped with a corresponding air compressor, air tank and accumulator. The air compressor is used as a power source to generate high-pressure gas, the air tank is used to store a sufficient amount of high-pressure gas to ensure continuous supply, and the accumulator is used to balance the pressure fluctuation of the circuit. The air circuit connection method, pipeline sealing structure and basic power supply logic between the air compressor, air tank and accumulator and drive cylinder 216 and drive cylinder 217 are all known prior art in the field and are not the improvement points of this invention, so they will not be described in detail here.

[0061] Compared to Embodiment 1, this embodiment uses drive cylinder 216 and drive cylinder 217, which not only provide stronger thrust and smoother lifting operation, but also allow for control of the extension distance of the output end of drive cylinder 216 and the extension distance of the output end of drive cylinder 217 according to actual needs, thereby adjusting the ground clearance of the lawnmower body 1.

[0062] Support part one includes two rotatable casters 12, which are spaced apart. Support part two includes at least one rotatable caster 2 13. The two casters 12 and the caster 2 13 are arranged in a triangular structure, preferably an isosceles triangle structure. The isosceles triangle support structure achieved by the two casters 12 and the caster 2 13 can always be in contact with the ground to form a stable support plane, avoiding multiple points of suspension or tilting due to terrain undulations. This further improves the fit and stability on complex terrain and makes it more adaptable to uneven and complex terrain.

[0063] As an alternative, the second support unit includes two rotatable casters 13, and the first support unit includes at least one rotatable caster 12. Of course, multiple casters 12 or casters 13 can be configured to form a multi-point support structure that is different from the three-point support, thereby further increasing the support contact area and preventing sinking in soft grass.

[0064] The linkage component 14 includes a connecting part 141, a connecting cable 142, and a pulley 143. The connecting part 141 is located at the hinge point between the first drive cylinder 216 and the second drive cylinder 217. The pulley 143 is rotatably mounted on the second fixed base 215. One end of the connecting cable 142 is connected to the connecting part 141 and passes around the pulley 143. A linkage component for driving the cover plate 8 to slide is slidably arranged inside the machine body 111. The other end of the connecting cable 142 is connected to the linkage component. When the hinge point between the first drive cylinder 216 and the second drive cylinder 217 descends and drives the connecting part 141, the connecting part 141 drives the linkage component to slide through the connecting cable 142, thereby causing the linkage component to drive the cover plate 8 to slide and open the discharge port 7.

[0065] In this embodiment, a control method based on a lawnmower is also included. The driving cylinder 217 is driven by the driving component 3 to slide along the sliding channel 3 11 of the fixed base 215, so that the hinge point between the driving cylinder 1 216 and the driving cylinder 217 descends. After reaching the corresponding position, the output ends of the driving cylinder 1 216 and the driving cylinder 217 extend out, and the supporting part 1 and the supporting part 2 contact the ground to lift the lawnmower body 1 off the ground. At the same time, the connecting part 141 moves down a first distance along with the hinge point between the driving cylinder 1 216 and the driving cylinder 217. The connecting part 141 drives the linkage component 31 to slide and abut against one side of the linkage part 17 through the connecting cable 142, and drives the cover plate 8 to slide along the guide rod 27 to expose the discharge port 7, so that the discharge port 7 is in the open state, and the grass clippings in the collection box 116 are discharged from the discharge port 7 under the action of gravity.

[0066] After all the grass clippings in the collection box 116 are discharged, the drive unit 3 drives the drive cylinder 217 to slide along the sliding channel 3 11 of the fixed base 215, causing the hinge point between the drive cylinder 1 216 and the drive cylinder 217 to move downward a second distance. At the same time, the connecting part 141 also moves downward a second distance along with the hinge point between the drive cylinder 1 216 and the drive cylinder 217. The connecting part 141 drives the linkage 31 to continue sliding through the connecting cable 142. The linkage 31 pushes the linkage 17 and the cover plate 8 to continue sliding until the reset block 2. The reset inclined surface 22 on the 1 abuts against the reset inclined surface 23 on the linkage part 17. Under the cooperation of the reset inclined surface 22 and the reset inclined surface 23, the linkage part 17 slides into the receiving groove 15 and squeezes the reset spring 2 16 until the linkage part 17 and the linkage member 31 disengage and pass through the clearance channel. At this time, the elastic restoring force of the reset spring 25 causes the cover plate 8 to slide along the guide rod 27 until it abuts against the limiting part 28. At this time, the cover plate 8 completes the sealing of the discharge port 7. At the same time, the elastic restoring force of the reset tension spring 19 causes the linkage member 31 to slide and reset.

[0067] The specific embodiments described herein are merely illustrative of the spirit of the invention; those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A lawnmower with a support structure, characterized in that: The system includes a lawnmower body (1), a lifting platform (2), and a drive unit (3). The bottom of the lawnmower body (1) is provided with a ball head seat (4), and the top of the lifting platform (2) is provided with a ball head body (5). The ball head body (5) is movably embedded in the ball head seat (4). The lawnmower body (1) can rotate omnidirectionally relative to the lifting platform (2). The drive unit (3) is used to drive the lifting platform (2) to lift it vertically. The bottom of the lifting platform (2) can contact the ground to lift the lawnmower body (1) off the ground. The lifting platform (2) includes a lifting base plate (211), two scissor arm telescopic frames (212), and a fixed base (214). The lifting base plate (211) is used to contact the ground. One fork arm (213) at one end of the scissor arm telescopic frame (212) is hinged to the lifting base plate (211), and the other fork arm (213) at that end is slidably disposed in the sliding channel (9) of the lifting base plate (211). One fork arm (213) at the other end of the scissor arm telescopic frame (212) is hinged to the fixed base (214), and the other fork arm (213) at that end is slidably disposed in the sliding channel (10) of the fixed base (214). The ball head (5) is disposed on the upper surface of the fixed base (214). The driving member (3) is used to drive the corresponding fork arm (213) to slide along the sliding channel (10) of the fixed base (214).

2. The lawnmower with a support structure according to claim 1, characterized in that: The main body (1) of the lawnmower includes a body (111), several driving wheels (112), a mowing assembly (113), a pipe (114), a suction pump (115), and a collection box (116). The body (111) is provided with a hand-held part (6). Several driving wheels (112) are respectively rotatably arranged on both sides of the body (111). The mowing assembly (113) is arranged at the front end of the body (111) to cut grass. The pipe (114) and the collection box (116) are both arranged on the body (111). The suction pump (115) is arranged inside the pipe (114). The inlet end of the pipe (114) is close to and aligned with the mowing assembly (113). The outlet end of the pipe (114) is connected to the collection box (116).

3. A lawnmower with a support structure according to claim 2, characterized in that: The collection box (116) has a downward-facing discharge port (7). A cover plate (8) for sealing the discharge port (7) is slidably disposed inside the machine body (111). When the lifting platform (2) lifts the lawnmower body (1) off the ground, the lifting platform (2) can drive the cover plate (8) to slide through the linkage component (14), thereby making the discharge port (7) open. The cover plate (8) can slide back to its original position, making the discharge port (7) closed.

4. A lawnmower with a support structure according to claim 3, characterized in that: The linkage assembly (14) includes a connecting part (141), a connecting cable (142), and a pulley (143). The connecting part (141) is located at the hinge point between the two fork arms (213). The pulley (143) is rotatably mounted on the fixed base (214). One end of the connecting cable (142) is connected to the connecting part (141), and the connecting cable (142) passes around the pulley (143). A sliding mechanism for carrying is provided inside the body (111). The connecting member (31) opens the discharge port (7) by sliding the cover plate (8). The other end of the connecting cable (142) is connected to the connecting member (31). When the hinge point between the two forks (213) descends and drives the connecting part (141), the connecting part (141) drives the connecting member (31) to slide through the connecting cable (142), thereby causing the connecting member (31) to drive the cover plate (8) to slide and open the discharge port (7).

5. A lawnmower with a support structure according to claim 4, characterized in that: The machine body (111) has a sliding groove (24) for sliding the cover plate (8). A return spring (25) is installed in the sliding groove (24) to allow the cover plate (8) to slide back and close the discharge port (7). A guide rod (27) is installed in the sliding groove (24) to guide the cover plate (8). The return spring (25) is sleeved on the outside of the guide rod (27). A receiving groove (15) is provided on the side wall of the cover plate (8). A second reset spring (16) is provided inside the housing. A linkage part (17) is slidably provided inside the receiving groove (15), and the linkage part (17) is connected to the outer end of the second reset spring (16). The linkage part (17) can cooperate with the bottom of the receiving groove (15) to squeeze the second reset spring (16). The linkage member (31) can slide and abut against one side of the linkage part (17), thereby driving the cover plate (8) to slide. An installation groove (18) is provided inside the body (111). A reset spring (19) is provided inside the mounting groove (18). The linkage (31) is slidably disposed in the mounting groove (18) and connected to one end of the reset spring (19). The other end of the reset spring (19) is connected to the side wall of the mounting groove (18). A guide rod (20) for guiding the linkage is provided inside the mounting groove (18). The reset spring (19) is sleeved on the outside of the guide rod (20). A corresponding linkage part (17) is provided inside the mounting groove (18). The reset block (21) is provided with a reset inclined surface one (22), and the other side of the linkage part (17) is provided with a reset inclined surface two (23). The reset block (21) has a clearance channel to avoid the passage of the linkage member (31). The linkage part (17) slides so that the reset inclined surface one (22) and the reset inclined surface two (23) abut against each other, thereby causing the linkage part (17) to slide into the receiving groove (15) and disengage from the linkage member (31).

6. A lawnmower with a support structure according to claim 5, characterized in that: The collection box (116) and the handheld part (6) are located on the same side of the body (111).

7. A lawnmower with a support structure, characterized in that: The system includes a lawnmower body (1), a lifting platform (2), and a drive unit (3). The bottom of the lawnmower body (1) is provided with a ball head seat (4), and the top of the lifting platform (2) is provided with a ball head body (5). The ball head body (5) is movably embedded in the ball head seat (4). The lawnmower body (1) can rotate omnidirectionally relative to the lifting platform (2). The drive unit (3) is used to drive the lifting platform (2) to lift it vertically. The bottom of the lifting platform (2) can contact the ground to lift the lawnmower body (1) off the ground. The main body (1) of the lawnmower includes a body (111), several driving wheels (112), a mowing assembly (113), a pipe (114), a suction pump (115), and a collection box (116). The body (111) is provided with a hand-held part (6). Several driving wheels (112) are respectively rotatably arranged on both sides of the body (111). The mowing assembly (113) is arranged at the front end of the body (111) to cut grass. The pipe (114) and the collection box (116) are both arranged on the body (111). The suction pump (115) is arranged inside the pipe (114). The inlet end of the pipe (114) is close to and aligned with the mowing assembly (113). The outlet end of the pipe (114) is connected to the collection box (116). The collection box (116) has a downward-facing discharge port (7). The body (111) is slidably equipped with a cover plate (8) for sealing the discharge port (7). When the lifting platform (2) lifts the lawnmower body (1) off the ground, the lifting platform (2) can drive the cover plate (8) to slide through the linkage component (14), thereby making the discharge port (7) open. The cover plate (8) can slide back to its original position, making the discharge port (7) closed. The lifting platform (2) includes a fixed base (215), a drive cylinder (216) and a drive cylinder (217). The drive cylinder (216) is hinged to the fixed base (215). The output end of the drive cylinder (216) is provided with a support part for contacting the ground. The drive cylinder (217) is slidably disposed in the sliding channel (11) of the fixed base (215). The output end of the drive cylinder (217) is provided with a support part for contacting the ground. The drive cylinder (216) and the drive cylinder (217) are hinged and spaced apart. The drive member (3) is used to drive the drive cylinder (217) to slide along the sliding channel (11) of the fixed base (215).

8. A lawnmower with a support structure according to claim 7, characterized in that: The first support part includes two rotatable casters (12) and the two casters (12) are spaced apart. The second support part includes at least one rotatable caster (13) and the two casters (12) and the caster (13) are arranged in a triangular structure.

9. A lawnmower with a support structure according to claim 8, characterized in that: The linkage component (14) includes a connecting part (141), a connecting cable (142), and a pulley (143). The connecting part (141) is located at the hinge point between the first driving cylinder (216) and the second driving cylinder (217). The pulley (143) is rotatably mounted on the second fixed base (215). One end of the connecting cable (142) is connected to the connecting part (141), and the connecting cable (142) passes around the pulley (143). A sliding assembly is provided inside the body (111). The linkage (31) is used to drive the cover plate (8) to slide and open the discharge port (7). The other end of the connecting cable (142) is connected to the linkage (31). When the hinge point of the first driving cylinder (216) and the second driving cylinder (217) descends and drives the connecting part (141), the connecting part (141) drives the linkage (31) to slide through the connecting cable (142), thereby causing the linkage to drive the cover plate (8) to slide and open the discharge port (7).

Images