Height adjusting mechanism of intelligent mower

Abstract

The utility model relates to the technical field of mowing robots, and provides an intelligent mowing machine height adjusting mechanism which comprises a machine shell, a pair of lap joint parts and a lifting mechanism, the lap joint parts are suitable for being connected with a mowing mechanism, the lifting mechanism is provided with a first central axis and a pair of lifting parts capable of moving in a lifting mode, and the lifting parts are symmetrically arranged on the two sides of the first central axis; the pair of lap joint parts are suitable for being placed on the pair of lifting parts respectively, and the lap joint parts and the mowing mechanism are installed on the machine shell in a lifting mode through the lifting parts of the lifting mechanism. The pair of lapping parts of the mowing mechanism is lapped on the pair of lifting parts which are symmetrically arranged along the first central axis of the lifting mechanism, so that the mowing mechanism is stressed more uniformly, the lifting process of the mowing mechanism by the lifting parts is more stable, the mowing mechanism is not easy to shake and damage, and the anti-falling performance is better; the stress of the lifting part on the two sides of the first central axis is symmetrical, so that the lifting part can be kept horizontal and stable more easily, the friction resistance in the lifting mechanism is reduced, and the durability and reliability of the lifting mechanism are improved.

Description

Technical Field

[0001] This utility model relates to the field of lawn mowing robot technology, and further to an intelligent lawn mower height adjustment mechanism. Background Technology

[0002] With technological advancements, lawnmower robots can now move up and down via lifting mechanisms to meet the different trimming height requirements of various grass species. Most existing lifting mechanisms employ a screw and nut, with a motor driving the screw to rotate, causing the nut to move up and down. The protruding part of the lawnmower directly overlaps the side of the nut closest to the lawnmower, meaning there's only one contact point. This results in the lawnmower applying pressure only to the side of the nut closest to the lawnmower, making the nut prone to tilting towards one side of the lawnmower. This leads to poor stability, increased friction and shearing force between the nut and screw, requiring a higher output power from the lifting motor, and increased operating costs. The increased resistance between the screw and nut also easily causes wear and damage to the threads, resulting in a shorter lifespan for the lifting mechanism and increased maintenance costs. Furthermore, when traversing bumpy roads, the lawnmower is prone to swaying up and down, making the protruding part susceptible to breakage and increasing safety hazards. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide an intelligent lawnmower height adjustment mechanism. A pair of overlapping parts of the mowing mechanism overlap with a pair of lifting parts symmetrically arranged along the first central axis of the lifting mechanism. This results in more even force distribution on the mowing mechanism, more stable lifting and lowering of the mowing mechanism by the lifting parts, and reduced swaying and damage to the mowing mechanism, thus improving its drop resistance. Furthermore, the symmetrical force distribution on both sides of the first central axis makes it easier for the lifting parts to maintain horizontal stability, reducing internal frictional resistance and improving durability and reliability.

[0004] To achieve the above objectives, this utility model provides an intelligent lawnmower height adjustment mechanism, including a housing, a pair of overlapping parts, and a lifting mechanism. The pair of overlapping parts are adapted to connect to the mowing mechanism. The lifting mechanism has a first central axis and a pair of liftable parts. The pair of liftable parts are symmetrically arranged on both sides of the first central axis. The pair of overlapping parts are respectively adapted to be placed on the pair of liftable parts. The overlapping parts and the mowing mechanism can be lifted and lowered on the housing through the liftable parts of the lifting mechanism.

[0005] In some embodiments, the lifting mechanism includes a lifting drive and a lifting member, the lifting drive having a first central axis, the lifting drive being adapted to drive the lifting member to move along the first central axis, and the lifting member having the lifting portion disposed on both sides of the lifting member on the first central axis.

[0006] In some embodiments, the lifting mechanism further includes a rotating component, and the output end of the lifting drive component is connected to the rotating component;

[0007] The lifting component further includes a sleeve portion disposed between the pair of lifting parts. The sleeve portion has a connecting hole in the middle. The sleeve portion is disposed on the outside of the rotating component. The inner side of the connecting hole is adapted to be threadedly connected to the outside of the rotating component. The lifting drive component is adapted to drive the rotating component to rotate and realize the lifting movement of the lifting component.

[0008] In some embodiments, the rotating member has a storage cavity inside, and the lifting drive member is disposed in the storage cavity of the rotating member. The lifting drive member is adapted to drive the rotating member to rotate around the first central axis, so as to drive the lifting member to move along the first central axis.

[0009] In some embodiments, the lifting mechanism further includes a lifting bracket, the lifting drive, the rotating component, and the lifting component are all disposed within the lifting bracket, and the lifting bracket has an extension opening on the side near the mowing mechanism, and the overlapping portion is adapted to pass through the extension opening and be placed on the lifting portion;

[0010] The lifting bracket is also provided with sliding grooves on the inner sidewalls on both sides of the first central axis, and the lifting part is adapted to be slidably disposed in the sliding grooves.

[0011] In some embodiments, the lifting mechanism further includes a base disposed below the lifting bracket, and the rotating member is rotatably disposed on the base;

[0012] And / or, the lifting part is provided with a magnetic element on the side away from the mowing mechanism, and a Hall plate is provided on the lifting bracket to sense the height of the lifting part through the Hall plate and the magnetic element.

[0013] In some embodiments, the bottom of the overlapping portion is provided with a first arc segment, the first arc segment protrudes towards the side near the lifting portion, and the bottom of the first arc segment is tangent to the top of the lifting portion.

[0014] In some embodiments, the bottom of the overlapping portion is further provided with a second arc segment, the second arc segment being located on the side of the first arc segment away from the lifting mechanism and smoothly connected to the first arc segment, the second arc segment being recessed towards the side away from the lifting portion.

[0015] In some embodiments, a linkage mechanism is also included, wherein a first end of the linkage mechanism is rotatably connected to the housing, and a second end is rotatably connected to the lawn mowing bracket on both sides of the first central axis;

[0016] The lifting mechanism is adapted to drive the linkage mechanism to rotate around the first end and realize the lifting of the mowing mechanism, and the first arc segment of the overlapping part slides relative to the top of the lifting part.

[0017] In some embodiments, the mowing mechanism includes a mowing bracket, a mowing drive, and a mowing element. The mowing drive is adapted to drive the mowing element to move and is disposed inside the mowing bracket. The overlapping portion is disposed at the top of the mowing bracket on the side near the lifting mechanism.

[0018] Compared with the prior art, the intelligent lawnmower height adjustment mechanism provided by this utility model has at least one of the following beneficial effects:

[0019] 1. A pair of overlapping parts of the mowing mechanism overlap with a pair of lifting parts symmetrically arranged along the first central axis of the lifting mechanism. The force on the mowing mechanism is more even, the lifting parts make the lifting process of the mowing mechanism more stable, the mowing mechanism is less prone to shaking and damage, and has better anti-fall performance. The force on both sides of the lifting parts on the first central axis is symmetrical, which makes it easier for the lifting parts to maintain horizontal stability, reduces the internal frictional resistance of the lifting mechanism, and improves its durability and reliability.

[0020] 2. The lifting drive component is housed inside the rotating component, reducing the overall height of the lifting mechanism, resulting in a smaller size, more compact structure, and lower cost.

[0021] 3. The first arc segment at the bottom of the overlapping part is tangent to the top of the lifting part, which reduces the friction between the overlapping part and the lifting part, reduces friction noise and energy loss, and makes the overlapping part easier to slide on the lifting part.

[0022] 4. The second arc segment is located on the side of the first arc segment away from the lifting mechanism, so that the side of the first arc segment away from the lifting part is recessed to avoid the overlapping part from colliding with the lifting part and to increase its safety. Attached Figure Description

[0023] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0024] Figure 1 This is a diagram showing the locations of the lifting section and the overlapping section;

[0025] Figure 2 This is a diagram showing the locations of the lifting mechanism and the lawn mowing mechanism;

[0026] Figure 3 This is an exploded view of the lifting mechanism;

[0027] Figure 4This is a cross-sectional view of the lifting mechanism;

[0028] Figure 5 This is a structural diagram of the lifting mechanism;

[0029] Figure 6 This is a structural diagram of the overlapping section;

[0030] Figure 7 This is the highest cross-sectional view of the lawnmower mechanism;

[0031] Figure 8 This is the lowest cross-sectional view of the lawnmower mechanism.

[0032] Explanation of icon numbers:

[0033] The lawn mowing mechanism 1, lawn mowing bracket 11, overlapping part 111, first arc segment 1111, second arc segment 1112, lifting mechanism 2, first central axis 20, lifting drive 21, lifting component 22, lifting part 221, magnetic component 2211, sleeve part 222, rotating component 23, lifting bracket 24, extension port 241, slide 242, Hall plate 243, base 25, and linkage mechanism 3. Detailed Implementation

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0035] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0036] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0037] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0038] Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0039] refer to Figure 1 and Figure 2 This utility model provides an intelligent lawnmower height adjustment mechanism, including a housing, a pair of overlapping parts 111, and a lifting mechanism 2. The pair of overlapping parts 111 are adapted to connect to the mowing mechanism 1. The mowing mechanism 1 is provided with a pair of overlapping parts 111. The lifting mechanism 2 has a first central axis 20 and a pair of lifting parts 221 that can be lifted and moved. The pair of lifting parts 221 are symmetrically arranged on both sides of the first central axis 20. The pair of overlapping parts 111 are adapted to be placed on the pair of lifting parts 221 respectively. The overlapping parts 111 and the mowing mechanism 1 can be lifted and moved on the housing through the lifting parts 221 of the lifting mechanism 2.

[0040] In this embodiment, a pair of overlapping parts 111 of the mowing mechanism 1 overlaps with a pair of lifting parts 221 symmetrically arranged along the first central axis 20 of the lifting mechanism 2. The force on the mowing mechanism 1 is more uniform, and the lifting process of the lifting parts 221 on the mowing mechanism 1 is more stable. The mowing mechanism 1 is less prone to shaking and damage, and has better anti-fall performance. The force on both sides of the lifting parts 221 on the first central axis 20 is symmetrical, which makes it easier for the lifting parts 221 to maintain horizontal stability, reduces the internal frictional resistance of the lifting mechanism 2, and improves its durability and reliability.

[0041] Specifically, the lifting mechanism 2 has a pair of lifting sections 221 symmetrically arranged on both sides of the first central axis 20, and the mowing mechanism 1 also has a pair of overlapping sections 111 on both sides of the first central axis 20. The two overlapping sections 111 are adapted to overlap and be placed on the lifting sections 221 respectively. The lifting force of the lifting section 221 on the mowing mechanism 1 is distributed on the two overlapping sections 111, making the force on the mowing mechanism 1 more even. The lifting process of the mowing mechanism 1 by the lifting section 221 is more stable, and the mowing mechanism 1 is less prone to shaking and damage, with better anti-fall performance. At the same time, the pressure of the mowing mechanism 1 on the lifting mechanism 2 is also distributed on the two lifting sections 221. The force on the lifting section 221 is symmetrically arranged with respect to the first central axis 20, and the lifting section 221 can maintain relative horizontal stability, reducing the internal frictional resistance of the lifting mechanism 2 and improving its durability and reliability.

[0042] refer to Figure 2 and Figure 3 The lifting mechanism 2 includes a lifting drive component 21, a lifting component 22, and a rotating component 23. The lifting drive component 21 has a first central axis 20 and is adapted to drive the lifting component 22 to move along the first central axis 20. The lifting component 22 is provided with a pair of lifting parts 221, which are disposed on both sides of the lifting component 22 along the first central axis 20. The output end of the lifting drive component 21 is connected to the rotating component 23; the lifting component 22 and the rotating component 23 are threadedly connected, and the lifting drive component 21 drives the rotating component 23 to rotate, thereby driving the lifting component 22 to move up and down. It is worth noting that in actual use, the rotating component 23 is a screw, the lifting component 22 is a nut, and the lifting drive component 21 is a lifting motor. In a modified embodiment, the lifting drive component 21 can also directly drive the lifting component 22 to move up and down, as long as the lifting component 22 can drive the lawn mowing mechanism 1 to move up and down.

[0043] More specifically, the lifting member 22 also includes a sleeve portion 222 disposed between a pair of lifting portions 221. The sleeve portion 222 has a connecting hole in the middle. The sleeve portion 222 is disposed on the outside of the rotating member 23. The inner side of the connecting hole is adapted to be threadedly connected to the outside of the rotating member 23. The lifting drive member 21 is adapted to drive the rotating member 23 to rotate and realize the lifting movement of the lifting member 22.

[0044] refer to Figure 7 and Figure 8When the height of the mowing mechanism 1 needs to be increased, the lifting drive 21 drives the rotating component 23 to rotate. The lifting component 22 moves upward through the thread directly connected to the rotating component 23, and through the lifting part 221, it drives the overlapping part 111 of the mowing mechanism 1 to rise, thereby causing the entire mowing mechanism 1 to move upward to the corresponding position, thus increasing the mowing height of the mowing robot. When the height of the mowing mechanism 1 needs to be decreased, the lifting drive 21 drives the rotating component 23 to rotate in the opposite direction. The lifting component 22 moves downward through the thread directly connected to the rotating component 23, and through the lifting part 221, it drives the overlapping part 111 of the mowing mechanism 1 to fall, thereby causing the entire mowing mechanism 1 to move downward to the corresponding position, thus decreasing the mowing height of the mowing robot.

[0045] Further, refer to Figure 3 and Figure 4 The rotating component 23 has a storage cavity inside, and the lifting drive component 21 is disposed in the storage cavity of the rotating component 23. The lifting drive component 21 is adapted to drive the rotating component 23 to rotate around the first central axis 20, so as to drive the lifting component 22 to move along the first central axis 20.

[0046] In this embodiment, the lifting drive component 21 is housed inside the rotating component 23. The lifting drive component 21 and the transmission component are arranged overlapping on the first central axis 20. The overall height of the lifting mechanism 2 is lower, the volume is smaller, the structure is more compact, and the cost is lower.

[0047] Specifically, by housing the lifting drive component 21 inside the rotating component 23, the lifting drive component 21 can more easily drive the rotating component 23 to rotate, reducing the overall height of the lifting drive component 21 and the rotating component 23, decreasing the volume of the lifting mechanism 2, and reducing space occupation. The rotating component 23 has a receiving cavity with an opening at the top. The lifting drive component 21 is suitable for being placed inside the receiving cavity through the opening, and then the opening is closed with a cover. The lifting drive component 21 includes a motor bracket and a motor, with the motor disposed inside the motor bracket, which is suitable for being placed inside the receiving cavity of the rotating component 23. It is worth noting that this embodiment is a preferred embodiment of this application. In modified embodiments, the lifting drive component 21 may also be disposed on the top of the rotating component 23, that is, the lifting drive component 21 is not located inside the rotating component 23.

[0048] refer to Figure 2 and Figure 5The lifting mechanism 2 also includes a lifting bracket 24. The lifting drive component 21, the rotating component 23, and the lifting component 22 are all disposed inside the lifting bracket 24. The lifting bracket 24 has an extension port 241 on the side near the mowing mechanism 1. The overlapping part 111 is adapted to pass through the extension port 241 and be placed on the lifting part 221. At least part of the overlapping part 111 is also located inside the lifting bracket 24. The extension port 241 of the lifting bracket 24 also plays a limiting role for the overlapping part 111, so that the overlapping part 111 can move up and down along the extension port 241. The movement of the overlapping part 111 is more regular and more stable, avoiding the overlapping part 111 from swaying left and right, which would cause the mowing mechanism 1 to sway left and right, thus improving the stability of the mowing mechanism 1. In particular, when traversing bumpy sections, the overlapping part 111 can stably slide up and down along the inlet 241. If the overlapping part 111 falls, it can return to the top of the lifting part 221 along the inlet 241, preventing the overlapping part 111 from accidentally leaving the lifting mechanism 2 and causing the mowing mechanism 1 to fall accidentally, thus reducing the risk of damage to the mowing mechanism 1. The lifting bracket 24 is also provided with a sliding groove 242 on the inner sidewalls on both sides of the first central axis 20, and the lifting part 221 is adapted to slide within the sliding groove 242. The lifting drive 21 drives the rotating part 23 to rotate, thereby driving the lifting part 22 to move up and down along the first central axis 20. At this time, the lifting part 22 can slide up and down along the sliding groove 242. The sliding groove 242 can limit the sliding direction of the lifting part 22, preventing the lifting part 22 from rotating with the rotating part 23, which would obstruct its lifting movement and make the lifting movement of the lifting part 22 more stable and continuous.

[0049] Furthermore, a magnetic element 2211 is provided on the side of the lifting part 221 away from the mowing mechanism 1, and a Hall plate 243 is provided on the lifting bracket 24. The height of the lifting part 221 is sensed by the Hall plate 243 and the magnetic element 2211.

[0050] In this embodiment, the Hall plate 243 of the lifting bracket 24 can determine the height position of the lifting part 221 by sensing the relative position of the magnetic element 2211 of the lifting part 221, thereby determining the height positions of the overlapping part 111 and the mowing mechanism 1, so as to accurately control the mowing height. It is worth noting that the magnetic element 2211 can also be provided at other positions of the lifting part 22 or the mowing mechanism 1, which is not further limited here.

[0051] Furthermore, the lifting mechanism 2 also includes a base 25, which is located below the lifting bracket 24. The rotating component 23 is rotatably mounted on the base 25. The base 25 supports the rotating component 23 and is equipped with a bearing suitable for connecting the rotating component 23, allowing the rotating component 23 to rotate on the bearing. It is worth noting that the base 25 can be installed separately, allowing the lifting mechanism 2 to be treated as a whole unit with a modular design, facilitating easy modularity and placement, thus making it convenient to carry and install; alternatively, a housing can be used instead. This application does not impose further limitations.

[0052] Further, refer to Figure 6 The bottom of the overlapping part 111 is provided with a first arc segment 1111, the first arc segment 1111 protrudes towards the side close to the lifting part 221, and the bottom of the first arc segment 1111 is tangent to the top of the lifting part 221.

[0053] In this embodiment, the first arc segment 1111 at the bottom of the overlapping part 111 is tangent to the top of the lifting part 221, which reduces the friction between the overlapping part 111 and the lifting part 221, reduces friction noise and energy loss, and makes the overlapping part 111 easier to slide on the lifting part 221.

[0054] Specifically, the mowing mechanism 1 includes a mowing bracket 11, a mowing drive, and a mowing element. The mowing drive is adapted to drive the mowing element and is disposed inside the mowing bracket 11. An overlap portion 111 is disposed at the top of the mowing bracket 11 near the lifting mechanism 2. The mowing bracket 11 has a second central axis, which is parallel to the first central axis 20. The overlap portion 111, located on the side of the mowing bracket 11 near the lifting mechanism 2, extends towards the side near the lifting mechanism 2 and is situated at the top of the side wall of the mowing bracket 11, reducing the overall height of the mowing mechanism 1 and the lifting mechanism 2. It is worth noting that the overlap portion 111 can also be located at other positions on the side of the mowing bracket 11 near the lifting mechanism 2; this application does not further limit this.

[0055] The mowing mechanism 1 is connected to the housing via a linkage mechanism 3. The first end of the linkage mechanism 3 is rotatably connected to the housing, and the second end is rotatably connected to both sides of the mowing bracket 11 along the first central axis 20. The linkage mechanism 3 includes several links spaced apart along the first central axis 20. Each link includes a first bracket, a second bracket, and a third bracket. The second and third brackets are located on opposite sides of the first central axis 20. The first bracket connects the middle portion of the first and second brackets. Both the second and third brackets are rotatably connected to the housing at one end and to the mowing bracket 11 of the mowing mechanism 1 at the other end. A lifting mechanism 2 connects to the end of the mowing mechanism 1 furthest from the connecting assembly. When the lifting mechanism 2 drives the mowing mechanism 1 to rise or fall, it is adapted to drive the linkage mechanism 3 to rotate around the first end and achieve the rising or falling of the mowing mechanism 1. At this time, the first arc segment 1111 of the overlapping portion 111 slides relative to the top of the lifting portion 221. The first arc segment 1111 is located on the side of the overlapping portion 111 furthest from the mowing mechanism 1 and protrudes downwards along the first central axis 20. The first arc segment 1111 at the bottom of the overlapping part 111 is tangentially arranged to the top of the lifting part 221. The friction of the first arc segment 1111 sliding on the top of the lifting part 221 is minimized, reducing friction noise and energy loss, making it easier for the overlapping part 111 to slide on the lifting part 221. The first arc segment 1111 at the bottom of the overlapping part 111 ensures that it is always in tangential contact with the plane of the top of the lifting part 221 within its range of motion. Rolling friction makes the lifting mechanism 2 move more smoothly and also reduces wear on the overlapping point of the overlapping part 111 and the lifting part 221. In a modified embodiment, the lifting portion 221 can also be configured as an upwardly protruding circle, the bottom of the overlapping portion 111 can be flat or circular, and the top of the lifting portion 221 can be tangent to the bottom of the overlapping portion 111 to achieve the same effect of reducing wear as in the above embodiment. Therefore, the top of the lifting portion 221 can be upwardly protruding and tangent to the overlapping portion 111, or the overlapping portion 111 can be downwardly protruding and tangent to the lifting portion 221. This application does not make any further limitations, as long as the lifting portion 221 is tangent to the overlapping portion 111.

[0056] Furthermore, the bottom of the overlapping part 111 is also provided with a second arc segment 1112. The second arc segment 1112 is located on the side of the first arc segment 1111 away from the lifting mechanism 2 and is smoothly connected to the first arc segment 1111. The second arc segment 1112 is recessed on the side away from the lifting part 221.

[0057] In this embodiment, the second arc segment 1112 is located on the side of the first arc segment 1111 away from the lifting mechanism 2, so that the side of the first arc segment 1111 away from the lifting part 221 is recessed, which avoids the overlapping part 111 and the lifting part 221 from colliding with each other and increases its safety.

[0058] Specifically, the second arc segment 1112 is located on the side of the overlapping portion 111 near the mowing mechanism 1 and is concave upward along the first central axis 20. The second arc segment 1112 connects the mowing bracket 11 and the first arc segment 1111. During the relative sliding process of the first arc segment 1111 and the top of the lifting portion 221, the side wall of the lifting portion 221 is relatively close to or far away from the mowing mechanism 1. This makes it very easy for the lifting portion 221 to collide with the connection between the overlapping portion 111 and the mowing bracket 11. Therefore, the side of the overlapping portion 111 away from the first arc segment 1111 is set as the inwardly concave second arc segment 1112, so that one end of the overlapping portion 111 is as far away from the lifting portion 221 as possible, avoiding the overlapping portion 111 and the lifting portion 221 from colliding with each other and causing damage to the overlapping portion 111 or the lifting portion 221, thereby increasing its safety.

[0059] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A height adjustment mechanism for an intelligent lawnmower, characterized in that, The device includes a housing, a pair of overlapping parts, and a lifting mechanism. The pair of overlapping parts are adapted to connect to a mowing mechanism. The lifting mechanism has a first central axis and a pair of liftable parts. The pair of liftable parts are symmetrically arranged on both sides of the first central axis. The pair of overlapping parts are adapted to be placed on the pair of liftable parts. The overlapping parts and the mowing mechanism are vertically mounted on the housing via the liftable parts of the lifting mechanism.

2. The height adjustment mechanism for an intelligent lawnmower according to claim 1, characterized in that, The lifting mechanism includes a lifting drive and a lifting member. The lifting drive has a first central axis and is adapted to drive the lifting member to move along the first central axis. The lifting member is provided with a lifting portion, which is disposed on both sides of the lifting member on the first central axis.

3. The height adjustment mechanism for an intelligent lawnmower according to claim 2, characterized in that, The lifting mechanism further includes a rotating component, and the output end of the lifting drive component is connected to the rotating component; The lifting component further includes a sleeve portion disposed between the pair of lifting parts. The sleeve portion has a connecting hole in the middle. The sleeve portion is disposed on the outside of the rotating component. The inner side of the connecting hole is adapted to be threadedly connected to the outside of the rotating component. The lifting drive component is adapted to drive the rotating component to rotate and realize the lifting movement of the lifting component.

4. The intelligent lawnmower height adjustment mechanism according to claim 3, characterized in that, The rotating component has a storage cavity inside, and the lifting drive component is disposed in the storage cavity of the rotating component. The lifting drive component is adapted to drive the rotating component to rotate around the first central axis, so as to drive the lifting component to move along the first central axis.

5. The intelligent lawnmower height adjustment mechanism according to claim 4, characterized in that, The lifting mechanism also includes a lifting bracket. The lifting drive, the rotating component, and the lifting component are all disposed within the lifting bracket. The lifting bracket has an extension opening on the side near the mowing mechanism. The overlapping part is adapted to pass through the extension opening and be placed on the lifting part. The lifting bracket is also provided with sliding grooves on the inner sidewalls on both sides of the first central axis, and the lifting part is adapted to be slidably disposed in the sliding grooves.

6. The height adjustment mechanism for an intelligent lawnmower according to claim 5, characterized in that, The lifting mechanism also includes a base, which is disposed below the lifting bracket, and the rotating component is rotatably disposed on the base; And / or, the lifting part is provided with a magnetic element on the side away from the mowing mechanism, and a Hall plate is provided on the lifting bracket to sense the height of the lifting part through the Hall plate and the magnetic element.

7. A height adjustment mechanism for an intelligent lawnmower according to any one of claims 1-6, characterized in that, The bottom of the overlapping part is provided with a first arc segment, which protrudes towards the side close to the lifting part, and the bottom of the first arc segment is tangent to the top of the lifting part.

8. The height adjustment mechanism for an intelligent lawnmower according to claim 7, characterized in that, The bottom of the overlapping part is also provided with a second arc segment. The second arc segment is located on the side of the first arc segment away from the lifting mechanism and is smoothly connected to the first arc segment. The second arc segment is recessed to the side away from the lifting part.

9. The height adjustment mechanism for an intelligent lawnmower according to claim 7, characterized in that, It also includes a linkage mechanism, the first end of which is rotatably connected to the housing, and the second end of which is rotatably connected to the mowing mechanism on both sides of the first central axis; The lifting mechanism is adapted to drive the linkage mechanism to rotate around the first end and realize the lifting of the mowing mechanism, and the first arc segment of the overlapping part slides relative to the top of the lifting part.

10. The height adjustment mechanism for an intelligent lawnmower according to claim 9, characterized in that, The mowing mechanism includes a mowing bracket, a mowing drive, and a mowing element. The mowing drive is adapted to drive the mowing element to move and is disposed inside the mowing bracket. The overlapping part is disposed on the top of the mowing bracket near the lifting mechanism.

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