Lawn mower

Abstract

A lawn mower. The lawn mower comprises a main unit body (10) and a lifting / lowering and flipping mechanism (20) connected to the main unit body (10); the lifting / lowering and flipping mechanism (20) comprises a lifting / lowering assembly and a flipping assembly; the lifting / lowering assembly comprises a lifting / lowering drive device (201); the flipping assembly comprises a sliding seat (204), a cutter holder (205) and linkage assemblies (206); under the driving of the lifting / lowering drive device (201), the sliding seat (204) is configured to move up and down; the cutter holder (205) is configured to connect to a cutter assembly (30); the linkage assemblies (206) are configured to connect to the sliding seat (204) and the cutter holder (205) and are configured in such a way that the linkage assemblies (206) can be controlled to be in a lifting / lowering state or a flipping state; when the linkage assemblies (206) are in the lifting / lowering state, the cutter holder (205) is in an initial state; when the linkage assemblies (206) are in the flipping state, the cutter holder (205) is in a flipping state. In the lawn mower, the sliding seat (204) and the cutter holder (205) are connected by means of the linkage assemblies (206) and, by means of the single lifting / lowering drive device (201), two actions, i.e. automated lifting and automated flipping actions, of the cutter assembly (30) can be implemented.

Description

Lawn mower Technical Field

[0001] The present disclosure relates to a lawn mower. Background Art

[0002] Lawn mowers used in landscaping are gradually moving towards automated control to reduce labor costs. Currently, lawn mowers on the market require manual adjustment of the cutting height of the mower blades during use. Furthermore, when replacing or cleaning the mower blades, disassembly is laborious and often requires unlocking multiple mechanisms, making the replacement and cleaning of the mower blades a cumbersome process.

[0003] Summary of the Invention

[0004] At least one embodiment of the present disclosure provides a lawn mower, which includes a body and a lifting and flipping mechanism connected to the body, wherein the lifting and flipping mechanism includes a lifting assembly and a flipping assembly, the lifting assembly includes a lifting drive device, and the flipping assembly includes a slide, a tool holder and a connecting rod assembly; the slide is configured to be able to realize lifting movement under the drive of the lifting drive device, the tool holder is configured to connect the tool assembly, and the connecting rod assembly is configured to connect the slide and the tool holder, and is configured to be controllable in a lifting state or a flipping state, wherein when the connecting rod assembly is in the lifting state, the tool holder is in the initial state, and when the connecting rod assembly is in the flipping state, the tool holder is in the flipping state.

[0005] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the lifting assembly further includes a lifting slide rail, the slide seat is slidably connected to the lifting slide rail, and is configured to be able to move along the lifting slide rail under the drive of the lifting drive device to achieve lifting movement.

[0006] For example, in the lawn mower provided by at least one embodiment of the present disclosure, the flipping assembly further includes: a limiting device, which is arranged on at least one side of the lifting slide rail and is configured to limit the lifting trajectory and the flipping trajectory, wherein the slide seat is connected to a limiting slider that cooperates with the limiting device, when the limiting slider is in the lifting trajectory, the connecting rod assembly is in the lifting state, and the tool holder is in the initial state, and when the limiting slider is in the flipping trajectory, the connecting rod assembly is in the flipping state, and the tool holder is in the flipping state.

[0007] For example, in the lawn mower provided by at least one embodiment of the present disclosure, the limiting device includes a limiting block arranged on at least one side of the lifting slide rail, and the connecting rod assembly includes a main connecting rod, a first connecting rod and a second connecting rod; the main connecting rod has a first connecting end and a second connecting end, wherein the first connecting end is hinged to the tool holder, the first connecting rod has a third connecting end and a fourth connecting end, wherein the third connecting end is hinged to the second connecting end and is hinged to the slide seat, the second connecting rod has a fifth connecting end and a sixth connecting end, wherein the fifth connecting end is hinged to the fourth connecting end, and the sixth connecting end is connected to the tool holder, wherein the first connecting rod includes a limiting fitting portion that cooperates with the limiting block, and the limiting fitting portion is configured to be able to rotate around the limiting block.

[0008] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the limiting fitting portion is a limiting groove, the first connecting rod further includes a protruding portion protruding toward the limiting block, and the limiting sliding block is arranged on the protruding portion and opposite to the limiting block.

[0009] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the hinge position of the third connecting end and the second connecting end is located at the limiting groove. When the limiting groove rotates around the limiting block, the main connecting rod and the second connecting rod move relative to each other to push the tool holder to flip.

[0010] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the tool holder is connected to a first self-locking structure, and the main connecting rod has a second self-locking structure at the first connection end that cooperates with the first self-locking structure. When the tool holder is in the initial state, the first self-locking structure and the second self-locking structure achieve self-locking.

[0011] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the first self-locking structure includes a self-locking pin and a spring supporting the self-locking pin, the self-locking pin includes a first clamping portion, and the second self-locking structure includes a second clamping portion that can be clamped with the first clamping portion.

[0012] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the connecting rod assembly further includes: a third connecting rod having a seventh connecting end and an eighth connecting end, wherein the seventh connecting end is hinged to the sixth connecting end, and the eighth end is hinged to the first end.

[0013] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the third connecting rod includes a pushing portion arranged toward the first self-locking structure. When the limiting slider moves to the limiting block and is subjected to force, the first connecting rod, the second connecting rod and the third connecting rod are subjected to force, and the pushing portion pushes the first self-locking structure to unlock the first self-locking structure and the second self-locking structure.

[0014] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the limiting device includes a limiting slide rail arranged on at least one side of the lifting slide rail, the limiting slide rail has a straight portion and a bending portion, which are respectively configured to limit the lifting trajectory and the flipping trajectory, and the limiting slider is slidably connected to the limiting slide rail.

[0015] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the connecting rod assembly includes a fourth connecting rod and a fifth connecting rod, the fourth connecting rod has a ninth connecting end and a tenth connecting end relative to each other, wherein the ninth connecting end is slidably connected to the limiting slide rail and includes the limiting slider, the tenth connecting end is hinged to the tool holder, the fifth connecting rod has an eleventh connecting end and a twelfth connecting end relative to each other, wherein the eleventh connecting end is hinged to the slide seat, and the twelfth connecting end is hinged to the tool holder, wherein the middle part of the fourth connecting rod has an axial hole, the slide seat is connected to a slide connecting rod, and the end of the slide connecting rod is hinged to the axial hole.

[0016] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the limiting device includes a limiting slide groove provided on at least one side of the lifting slide rail, and the limiting slide groove has an opening portion and is configured to limit the flipping trajectory.

[0017] For example, in the lawn mower provided by at least one embodiment of the present disclosure, the limiting slider is slidably connected to the lifting slide rail, and the connecting rod assembly includes a sliding rod, a sixth connecting rod and a seventh connecting rod; the sliding rod has a thirteenth connecting end and a fourteenth connecting end relative to each other and a sliding guide portion arranged between the thirteenth connecting end and the fourteenth connecting end, wherein the thirteenth connecting end is hinged to the end of the limiting slider, the sixth connecting rod has a fifteenth connecting end and a sixteenth connecting end, wherein the fifteenth connecting end is hinged to the fourteenth connecting end, and the sixteenth connecting end is hinged to the tool bracket, the seventh connecting rod has a fifteenth connecting end and a sixteenth connecting end, wherein the fifteenth connecting end is fixed to the slide seat and slidably connected to the sliding guide portion, and the sixteenth connecting end is hinged to the tool bracket.

[0018] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the sliding rod has a limit turn block that cooperates with the opening portion. When the limit turn block moves to the opening portion, the fifteenth connecting end of the seventh connecting rod slides along the sliding guide portion, and the sliding rod drives the limit turn block to rotate at the opening portion, and the tool holder flips over.

[0019] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the lifting drive device includes a drive motor and a screw connected to an output end of the drive motor, and the slide includes a transmission part threadedly connected to the screw.

[0020] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the lifting drive device further includes: an encoder configured to record the number of revolutions of the drive motor for obtaining the state of the tool holder.

[0021] For example, in the lawn mower provided in at least one embodiment of the present disclosure, the lifting slide rail includes a slider slide rail, an optical axis slide rail, or a slide groove slide rail.

[0022] For example, the lawn mower provided in at least one embodiment of the present disclosure further includes a cutter assembly and a sensor; the cutter assembly is connected to the cutter bracket, and the sensor is disposed on the lifting assembly or the flipping assembly and is configured to detect the status of the cutter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0024] FIG1 is a structural diagram of a lawn mower provided by at least one embodiment of the present disclosure;

[0025] FIG2 is a schematic structural diagram of a lifting and flipping assembly of a lawn mower provided by at least one embodiment of the present disclosure;

[0026] FIG3 is a schematic diagram of a lifting and flipping assembly of a lawn mower provided by at least one embodiment of the present disclosure in a flipped state;

[0027] FIG4A is a side view of a lifting and flipping assembly of a lawn mower provided by at least one embodiment of the present disclosure in a lifting state;

[0028] FIG4B is a side view of the lifting and flipping assembly of the lawn mower provided by at least one embodiment of the present disclosure in a flipped state;

[0029] FIG5A is a rear view schematic diagram of the lifting and flipping assembly of the lawn mower provided by at least one embodiment of the present disclosure in a lifting state;

[0030] FIG5B is a rear view schematic diagram of the lifting and flipping assembly of the lawn mower provided by at least one embodiment of the present disclosure in a flipped state;

[0031] 6 and 7 are schematic structural diagrams of a lifting and flipping assembly of another lawn mower provided by at least one embodiment of the present disclosure;

[0032] FIG8 is a schematic structural diagram of a lifting and flipping assembly of another lawn mower provided by at least one embodiment of the present disclosure in a flipped state;

[0033] 9 and 10 are schematic structural diagrams of a lifting and flipping assembly of another lawn mower provided by at least one embodiment of the present disclosure; and

[0034] FIG11 is a structural schematic diagram of a lifting and flipping assembly of another lawn mower provided by at least one embodiment of the present disclosure in a flipped state. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0036] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0037] As mentioned above, during the use of lawn mowers on the market, the cutting height of the mowing blades needs to be manually adjusted. In addition, when replacing or cleaning the mowing blades, the disassembly of the mowing blades is very laborious and multiple structures need to be unlocked, making the replacement and cleaning of the mowing blades cumbersome.

[0038] At least one embodiment of the present disclosure provides a lawn mower, which includes a body and a lifting and flipping mechanism connected to the body, wherein the lifting and flipping mechanism includes a lifting assembly and a flipping assembly, the lifting assembly includes a lifting drive device, and the flipping assembly includes a slide, a tool holder and a connecting rod assembly; the slide is configured to be able to realize lifting movement under the drive of the lifting drive device, the tool holder is configured to connect the tool assembly, the connecting rod assembly is configured to connect the slide and the tool holder, and is configured to be controllable in a lifting state or a flipping state, when the connecting rod assembly is in the lifting state, the tool holder is in the initial state, and when the connecting rod assembly is in the flipping state, the tool holder is in the flipping state.

[0039] In the lawn mower provided in the embodiment of the present disclosure, the slide and the tool holder are connected by a connecting rod assembly, and a single lifting drive device can be used to realize two actions: automatic lifting and automatic flipping of the tool assembly. The automatic lifting action can accurately control the height of the tool assembly, such as the ground clearance, and the automatic flipping can flip the tool assembly quickly, conveniently and quickly to change the state of the tool assembly, such as exposing the tool assembly to facilitate cleaning and replacement of the tool assembly.

[0040] The lawn mower provided by the embodiments of the present disclosure is described below through several specific embodiments.

[0041] At least one embodiment of the present disclosure provides a lawn mower, FIG1 shows a schematic structural diagram of the lawn mower, and FIG2 shows a schematic structural diagram of the lifting and flipping mechanism of the lawn mower. As shown in FIG1 , the lawn mower includes a body 10 and a lifting and flipping mechanism 20 connected to the body 10.

[0042] For example, the main body 10 may include a housing and a drive device (for driving the lawn mower to move), a power supply device (for powering the lawn mower), and a control device (such as a controller) located within the housing. The main body 10 may also be connected to a motion device (such as a crawler) to drive the lawn mower to move. The embodiments of the present disclosure do not limit the specific structure of the main body 10.

[0043] For example, as shown in FIG2 , the lifting and flipping mechanism 20 includes a lifting assembly and a flipping assembly, and the lifting assembly includes a lifting drive device 201. For example, in some examples, the lifting drive device 201 may include a drive motor and a lead screw 202 connected to the output end of the drive motor, and the drive motor may drive the lead screw 202 to rotate. For example, the extension direction of the lead screw 202 is a vertical direction, or slightly tilted from the vertical direction toward the direction of the fuselage body 10, thereby achieving lifting and lowering movement. For example, in some embodiments, the lifting drive device 201 may also include an encoder configured to record the number of revolutions of the drive motor, so as to obtain the driving state of the drive motor, and then obtain the state of the tool holder 205, such as the lifting height and position.

[0044] For example, as shown in FIG2 , the flip assembly includes a slide 204, a tool holder 205, and a connecting rod assembly 206. The slide 204 is configured to be able to achieve lifting motion under the drive of the lifting drive device 201. For example, in some embodiments, the slide 204 includes a transmission portion 2041 threadedly connected to the lead screw 202, and the lead screw 202 is threadedly engaged with the transmission portion 2041. When the drive motor drives the lead screw 202 to rotate, the transmission portion 2041 can rise or fall along the lead screw 202. For example, the transmission portion 2041 can be a part of the slide 204 body, for example, a part of the slide 204 body is threaded to engage with the lead screw 202, or the transmission portion 2041 can also be a separately provided structure additionally connected to the slide 204, such as a separately provided lead screw nut.

[0045] For example, as shown in Figures 1 and 2, the tool holder 205 is configured to connect to the tool assembly 30, that is, the tool assembly 30 can be fixed to the tool holder 205. The connecting rod assembly 206 is configured to connect the slide 204 and the tool holder 205, and is configured to be controllable (for example, by the control of the lifting drive device 201) to be in a lifting state or a flipping state. For example, when the connecting rod assembly 206 is in the lifting state, the tool holder 205 is in an initial state, for example, in this initial state, the tool assembly 30 can be in a horizontal position; when the connecting rod assembly 206 is in the flipping state, the tool holder 205 is in a flipping state, for example, in this flipping state, the tool assembly 30 can be in a state of being rotated by a certain angle, for example, a state of being rotated by approximately 90 degrees.

[0046] For example, as shown in FIG1 , the lawn mower further includes a cutter assembly 30, which is fixed to the cutter bracket 205, for example, by bolts or other structures. For example, the cutter assembly 30 may include various types of cutters, such as scissor-type cutters and disc-type cutters. The embodiments of the present disclosure do not limit the specific form of the cutter assembly 30.

[0047] In the embodiment of the present disclosure, the lifting and flipping assembly can realize automatic lifting and flipping actions under the drive of the lifting drive device 201, or, when the lawn mower encounters a rugged road surface, it can also passively realize lifting and flipping actions. For example, when the lawn mower encounters a steep slope, the slide 204 can be passively lifted up to adapt to the road surface, better achieve mowing effects, and protect the tool assembly 30.

[0048] For example, in the flipping assembly shown in Figure 2, the connecting rod assembly 206 is in a lifting state, and the tool holder 205 is in an initial state; Figure 3 shows a schematic diagram of the above-mentioned lifting and flipping assembly in a flipping state. In the flipping assembly shown in Figure 3, the connecting rod assembly 206 is in a flipping state, and the tool holder 205 is in a flipping state, which will be introduced in detail later.

[0049] For example, in some embodiments, as shown in FIG2 , the lifting assembly may further include a lifting rail 203 , with a slide 204 slidably connected to the lifting rail 203 and configured to move along the lifting rail 203 under the drive of the lifting drive 201 to achieve lifting motion, for example, linear motion or approximately linear motion. For example, the lifting rail 203 may be in the form of a slider rail, an optical axis rail, or a slot rail, and the embodiments of the present disclosure do not limit the specific form of the lifting rail 203. For example, in the embodiment of FIG2 , a slider rail is used.

[0050] For example, the extension direction of the lifting track defined by the lifting rail 203 is the same as the extension direction of the lead screw 202, thereby limiting the freedom of movement of the slide 204, so that the slide 204 can only move stably along the track defined by the lifting rail 203 and the lead screw 202, so as to improve the movement stability of the slide 204.

[0051] For example, in some embodiments, as shown in FIG2 , the flip assembly may further include a limiting device 207 disposed on at least one side of the lifting rail 203 , for example, symmetrically disposed on both sides of the lifting rail 203 . The limiting device 207 is configured to define a lifting trajectory and a flipping trajectory.

[0052] For example, the slide 204 is connected to a limit slider 208 that cooperates with the limit device 207. In the embodiment of Figure 2, when the limit slider 208 is spaced from the limit device 207 and there is no force interaction between them, the trajectory of the limit slider 208 is the lifting trajectory defined by the limit device 207. When the limit slider 208 is in the lifting trajectory, the connecting rod assembly 206 is in the lifting state, and the tool holder 205 is in the initial state, which is the state shown in Figure 2; when the limit slider 208 is in contact with the limit device 207 and there is force interaction between them, the trajectory of the limit slider 208 is the flipping trajectory defined by the limit device 207. When the limit slider 208 is in the flipping trajectory, the connecting rod assembly 206 is in the flipping state, and the tool holder 205 is in the flipping state, which is the state shown in Figure 3.

[0053] For example, in the embodiment of FIG2 , the limiting device 207 includes a limiting block 2071 disposed on at least one side of the lifting rail 203, for example, symmetrically disposed on at least two sides of the lifting rail 203. In this case, when the limiting slider 208 is below the limiting block 2071 or just reaches the limiting block 2071, the trajectory defined by the limiting block 2071 is a lifting trajectory. After the limiting slider 208 reaches the limiting block 2071 and generates force interaction with the limiting block 2071, the trajectory defined by the limiting block 2071 is a flipping trajectory.

[0054] For example, in some embodiments, as shown in Figure 2, the connecting rod assembly 206 includes a main connecting rod 2061, a first connecting rod 2062 and a second connecting rod 2063; the main connecting rod 2061 has a first connecting end A and a second connecting end B, the first connecting end A is hinged to the tool holder 205, the first connecting rod 2062 has a third connecting end C and a fourth connecting end D, the third connecting end C is hinged to the second connecting end B, and is hinged to the slide 204, for example, the hinge point is located at the position indicated by the mark BC, the second connecting rod 2063 has a fifth connecting end E and a sixth connecting end F, the fifth connecting end E is hinged to the fourth connecting end D, and the sixth connecting end F is connected to the tool holder 205.

[0055] It should be noted that in the embodiments of the present disclosure, the "connection" between one structure and another structure can be a direct connection or an indirect connection, as long as the two have a certain degree of mutual constraint, and the "hinge" between one structure and another structure can be a direct hinge or an indirect hinge, as long as the two can rotate relative to each other. The embodiments of the present disclosure do not limit the specific form of "connection / connection".

[0056] 2 and 3 , the first connecting rod 2062 includes a stopper 2071 that cooperates with the stopper 2071. For example, the stopper 2071 may be a stopper groove 2072. The stopper groove 2072 is configured to rotate about the stopper 2071. In this case, the first connecting rod 2062, the main connecting rod 2061, and the second connecting rod 2063 all rotate relative to each other, causing the relative positions of the slide 204 and the tool holder 205 to change, causing the tool holder 205 to flip. For example, in other embodiments, the stopper 2071 may have other forms that can cooperate with the stopper 2071, such as a structure having an arcuate edge or a linear edge that can cooperate with the edge of the stopper 2071.

[0057] For example, in some embodiments, as shown in Figures 2 and 3, the first connecting rod 2062 also includes a protrusion 2073 protruding toward the limit block 2071, and the limit slider 208 is arranged on the protrusion 2073 and is opposite to the limit block 2071, so that when the limit slider 208 reaches the limit block 2071, it will first contact the limit block 2071. When the lifting drive device 201 continues to drive upward, the limit block 2071 will generate a blocking force on the limit slider 208, so that the limit slider 208 will not continue to rise, but will cause the limit groove 2072 to rotate around the limit block 2071 to achieve a flipping action.

[0058] For example, as shown in Figures 2 and 3, the hinge position of the third connecting end C and the second connecting end B is located at the limiting groove 2072, that is, it is arranged next to the limiting groove 2072, so that when the limiting groove 2072 rotates around the limiting block 2071, the main connecting rod 2061 and the second connecting rod 2063 move relative to each other, and the second connecting rod 2063 pushes the tool holder 205 to flip.

[0059] For example, in some embodiments, as shown in Figures 2 and 3 , the tool holder 205 is connected to a first self-locking structure 209. Figures 4A and 4B illustrate side views of the lifting and flipping assembly in the lifting and flipping positions, respectively. In conjunction with Figure 4A , the main connecting rod 2061 has a second self-locking structure 210 at its first connection end A that cooperates with the first self-locking structure 209. When the tool holder 205 is in its initial state, the first self-locking structure 209 and the second self-locking structure 210 are self-locked, as shown in Figure 4A .

[0060] For example, as shown in Figures 2-4A, the first self-locking structure 209 includes a self-locking pin 2091 and a spring 2092 supporting the self-locking pin 2091, the self-locking pin 2091 includes a first clamping portion, and the second self-locking structure 210 includes a second clamping portion that can be clamped with the first clamping portion. When the first self-locking structure 209 and the second self-locking structure 210 are in a self-locking state, the first clamping portion and the second clamping portion are clamped together, thereby keeping the tool holder 205 in an initial state and preventing the tool assembly 30 from being unexpectedly lifted up by the obstacle when encountering the obstacle.

[0061] For example, in some embodiments, as shown in Figure 4A, the connecting rod assembly 206 may also include a third connecting rod 2064, the third connecting rod 2064 has a seventh connecting end G and an eighth connecting end H, the seventh connecting end G is hinged to the sixth connecting end F, and the eighth end H is hinged to the first end A.

[0062] For example, as shown in Figure 4A, the third connecting rod 2064 includes a pushing portion 2093 arranged toward the first self-locking structure 209. When the limiting slider 208 moves to the limiting block 2071 and is subjected to force, the first connecting rod 2062, the second connecting rod 2063 and the third connecting rod 2064 are subjected to force, and the pushing portion 2093 applies a pushing force to the first self-locking structure 209 to push the first self-locking structure 209, such as pushing the self-locking pin 2091 to unlock the first self-locking structure 209 and the second self-locking structure 210, such as disconnecting the first clamping portion from the second clamping portion, thereby facilitating the tool holder 205 to transition from the lifting state to the flipping state.

[0063] For example, Figures 5A and 5B illustrate rear views of the lifting and flipping assembly in the lifting and flipping positions, respectively. Referring to Figures 2 and 3 , 4A and 4B , and 5A and 5B , when the tool holder 205 is in its initial state, and referring to Figure 1 , the tool assembly 30 connected to the tool holder 205 can be in an operating state, such as a mowing state. At this point, the first self-locking structure 209 and the second self-locking structure 210 are self-locking to maintain the stability of the tool assembly 30. After the lifting drive device 201 drives the slide 204 to rise, the tool holder 205 drives the tool assembly 30 to rise. When the limit slider 208 reaches the limit block 2071 and the lifting drive device 201 continues to drive, the first self-locking structure 209 and the second self-locking structure 210 are pushed by the pushing part 2093 to achieve unlocking. At this time, the lifting drive device 201 continues to drive, and the limit groove 2072 rotates around the limit block 2071. At this time, the first connecting rod 2062 and the main connecting rod 2061 and the second connecting rod 2063 will all rotate relative to each other, so that the relative position of the slide 204 and the tool holder 205 changes, and the tool holder 205 drives the tool assembly 30 to flip over. At this time, the tool assembly 30 can be replaced and the tool assembly 30 can be cleaned.

[0064] For example, when the lifting and flipping assembly returns to the lifting state from the flipping state, under the elastic force of the spring 2092 of the first self-locking structure 209, the first clamping part of the first self-locking structure 209 and the second clamping part of the second self-locking structure 210 will automatically be clamped to achieve self-locking of the first self-locking structure 209 and the second self-locking structure 210.

[0065] Thus, in the lawn mower provided by the embodiment of the present disclosure, the slide 204 and the cutter bracket 205 are connected by the connecting rod assembly 206, and the cutter assembly 30 can be automatically raised and automatically flipped using a single lifting drive device 201. The automatic raising action can accurately control the height of the cutter assembly 30, such as the ground clearance, to cope with rugged environments such as steep slopes; the automatic flipping action can quickly, conveniently, and quickly flip the cutter assembly 30, for example, exposing the cutter assembly 30 for easy cleaning and replacement.

[0066] For example, in other embodiments, components such as the limiting device 207 , the limiting slider 208 , and the connecting rod assembly 206 may also adopt other forms.

[0067] For example, Figures 6 and 7 show schematic structural diagrams of the lifting and flipping assembly in another lawn mower provided by at least one embodiment of the present disclosure. For clarity, Figure 7 removes some external structures relative to Figure 6, such as the limiting slide rail 2074, the fourth connecting rod 2065, etc.

[0068] As shown in Figures 6 and 7, the limiting device 207 includes a limiting rail 2074 provided on at least one side of the lifting rail 203. For example, the limiting device 207 includes limiting rails 2074 provided symmetrically on both sides of the lifting rail 203. The limiting rail 2074 has a straight portion 741 and a bent portion 742, which are respectively configured to define a lifting trajectory and a flipping trajectory. The limiting slider 208 is slidably connected to the limiting rail 2074.

[0069] For example, when the limiting slider 208 slides in the straight portion 741, the connecting rod assembly 206 is in a lifting state, the tool bracket 205 is in an initial state, and the tool assembly 30 connected to the tool bracket 205 can be in a working state, such as a mowing state; when the limiting slider 208 slides in the bending portion 742, the connecting rod assembly 206 is in a flipping state, the tool bracket 205 is in a flipping state, and the tool assembly 30 connected to the tool bracket 205 flips. At this time, the tool assembly 30 can be replaced and the tool assembly 30 can be cleaned.

[0070] For example, in the embodiments of FIG. 6 and FIG. 7 , the lifting rail 203 is a slide rail, such as a dovetail groove slide rail.

[0071] For example, as shown in Figures 6 and 7, the connecting rod assembly 206 includes a fourth connecting rod 2065 and a fifth connecting rod 2066. The fourth connecting rod 2065 has a ninth connecting end I and a tenth connecting end J, respectively. The ninth connecting end I is slidably connected to the limiting slide rail 2074 and includes a limiting slider 208. For example, in some examples, the fourth connecting rod 2065 is formed as a limiting slider 208 at the end of the ninth connecting end I. Alternatively, in other embodiments, a limiting slider 208 may also be provided at the ninth connecting end I. The tenth connecting end J is hingedly connected to the tool support 205. The fifth connecting rod 2066 has an eleventh connecting end K and a twelfth connecting end L, respectively. The eleventh connecting end K is hingedly connected to the slide 204, and the twelfth connecting end L is hingedly connected to the tool support 205. The fourth connecting rod 2065 has an axial hole X in its center. The slide 204 is connected to the slide connecting rod 2041, and the end of the slide connecting rod 2041 is hingedly connected to the axial hole X.

[0072] Therefore, in the embodiments of Figures 6 and 7, when the lifting drive device 201 drives the slide 204 and the limiting slider 208 slides on the straight portion 741 of the limiting slide rail 2074, the connecting rod assembly 206 is in a lifting state and the tool holder 205 is in an initial state; when the lifting drive device 201 continues to drive the slide 204 to rise and the limiting slider 208 slides to the bending portion 742 of the limiting slide rail 2074, the connecting rod assembly 206 is in a flipping state and the tool holder 205 is in a flipping state, as shown in Figure 8.

[0073] For example, Figures 9 and 10 show schematic structural diagrams of a lifting and flipping assembly in another lawn mower provided by at least one embodiment of the present disclosure. For clarity, Figure 10 removes some external structures, such as the limiting slide groove 2075, relative to Figure 9.

[0074] As shown in Figures 9 and 10 , the limiting device 207 includes a limiting slot 2075 disposed on at least one side of the lifting rail 203. The limiting slot 2075 has an opening 751 and is configured to define a turning trajectory. For example, in the embodiment of Figures 9 and 10 , the lifting rail 203 is an optical axis rail, for example, two optical axis rails are symmetrically disposed on either side of the lead screw 202.

[0075] For example, as shown in Figures 9 and 10, the limiting slider 208 is slidably connected to the lifting slide rail 203, and the connecting rod assembly 206 includes a sliding rod 2067, a sixth connecting rod 2068 and a seventh connecting rod 2069; the sliding rod 2067 has a thirteenth connecting end M and a fourteenth connecting end N relative to each other and a sliding guide portion Y arranged between the thirteenth connecting end M and the fourteenth connecting end N, the thirteenth connecting end M is hinged to the end of the limiting slider 208, the sixth connecting rod 2068 has a fifteenth connecting end P and a sixteenth connecting end Q, the fifteenth connecting end P is hinged to the fourteenth connecting end N, the sixteenth connecting end Q is hinged to the tool bracket 205, the seventh connecting rod 2069 has a fifteenth connecting end R and a sixteenth connecting end S, the fifteenth connecting end R is fixed to the slide seat 204, and is slidably connected to the sliding guide portion Y, and the sixteenth connecting end S is hinged to the tool bracket 205.

[0076] For example, the slide rod 2067 has a limit turn block 752 that cooperates with the opening portion 751. The limit turn block 752 can move along the limit slide groove 2075. When the limit turn block 752 moves to the opening portion 752, the fifteenth connection end R of the seventh connecting rod 2068 slides along the sliding guide portion Y, and the slide rod 2067 drives the limit turn block 752 to rotate in the opening portion 751, and the tool holder 205 flips over.

[0077] 9 and 10 , when the lifting drive 201 drives the slide 204 and the limit turn block 752 slides in the non-opening portion 751 of the limit slide groove 2075, the connecting rod assembly 206 is in a lifting state, the tool holder 205 is in an initial state, and the tool assembly 30 connected to the tool holder 205 can be in a working state, such as a mowing state; when the lifting drive 201 continues to drive the slide 204 to rise, the limit turn block 752 slides to the opening portion 751, and the lifting drive 201 continues to drive, the fifteenth connection end R of the seventh connecting rod 2068 slides along the sliding guide portion Y, the limit turn block 752 rotates in the opening portion 751, the connecting rod assembly 206 is in a flipping state, and the tool holder 205 is in a flipping state, as shown in FIG11 . At this time, the tool assembly 30 connected to the tool holder 205 flips over, and the tool assembly 30 can be replaced and the tool assembly 30 can be cleaned.

[0078] For example, in some embodiments, the lawn mower may further include a sensor (not shown); the sensor may be disposed on the lifting assembly or the flip assembly, and configured to detect the working status of the lifting assembly or the flip assembly, and further detect the status of the tool assembly 30 .

[0079] For example, in some examples, the sensor can be a displacement sensor or a contact sensor, such as a photoelectric encoder, a magnetic encoder, a Hall element, a micro switch, etc., which are installed at both ends of the lifting track to detect whether the lifting and flipping assembly has completed the preset action, and then detect the state of the tool assembly 30; or, the displacement sensor or contact sensor can also be installed near the rotating shaft of the rotatable mechanism to sense the change in angle or angular velocity, and then obtain relevant status information of the lifting assembly or flipping assembly. Alternatively, the sensor can be a current sensor or a voltage sensor, which is set at the output end of the drive motor 201, and senses whether there is a load or whether a stall occurs by monitoring the current and voltage of the drive motor, so as to judge the state of the tool assembly 30. Alternatively, the sensor can be a mechanical sensor, which is set on the lifting and rotating assembly, and judges the current state by sensing the deformation or pressure of the material. The embodiments of the present disclosure do not limit the specific form of the sensor.

[0080] For example, in some embodiments, the lawn mower may further include a controller (not shown), which may be disposed inside the main body 10. The controller is configured to communicate with the lifting drive device 201 and the sensor, and is configured to receive detection information from the sensor, and control the lifting drive device 201 according to the detection information from the sensor, such as controlling the drive motor of the lifting drive device 201 to rotate forward or reverse, thereby controlling the tool holder 205 to be in a lifting state or a flipping state, thereby realizing automatic lifting and flipping of the lawn mower.

[0081] For example, the controller can be a central processing unit (CPU), a network processor (NP), etc., or a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The central processing unit (CPU) can be an X86 or ARM architecture, etc. The embodiments of this disclosure do not limit the specific form of the controller.

[0082] There are a few points to note:

[0083] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0084] (2) For the sake of clarity, the thicknesses of layers or regions in the drawings used to describe the embodiments of the present disclosure are exaggerated or reduced, i.e., these drawings are not drawn to scale. It is understood that when an element is referred to as being "on" or "under" another element, the element may be "directly" on or "under" the other element, or intervening elements may be present.

[0085] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0086] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A lawn mower, characterized in that: It includes a fuselage body and a lifting and flipping mechanism connected to the fuselage body, wherein the lifting and flipping mechanism includes: A lifting assembly, including a lifting drive device, and Flip assembly, including: The slide seat is configured to be able to achieve lifting motion under the drive of the lifting drive device, a tool holder configured to connect to the tool assembly, and A connecting rod assembly is configured to connect the slide and the tool support, and is configured to be controllably in a lifting state or a flipping state. Wherein, when the connecting rod assembly is in a lifting state, the tool support is in an initial state, and when the connecting rod assembly is in a flipping state, the tool support is in a flipping state.

2. The lawn mower according to claim 1, characterized in that The lifting assembly also includes a lifting rail, The slide seat is slidably connected to the lifting slide rail, and is configured to be able to move along the lifting slide rail under the drive of the lifting drive device to achieve lifting movement.

3. The lawn mower according to claim 2, characterized in that The flip assembly also includes: A limit device is arranged on at least one side of the lifting slide rail and is configured to limit a lifting trajectory and a flipping trajectory. Wherein, the slide seat is connected with a limit slider matched with the limit device, When the limit slider is in the lifting track, the connecting rod assembly is in the lifting state, and the tool support is in the initial state, When the limiting slide block is in the flipping track, the connecting rod assembly is in the flipping state, and the tool support is in the flipping state.

4. The lawn mower according to claim 3, characterized in that The limiting device comprises a limiting block arranged on at least one side of the lifting slide rail, The connecting rod assembly comprises: The main connecting rod has a first connecting end and a second connecting end, wherein the first connecting end is hinged to the tool support, The first connecting rod has a third connecting end and a fourth connecting end, wherein the third connecting end is hinged to the second connecting end and is hinged to the sliding seat, The second connecting rod has a fifth connecting end and a sixth connecting end, wherein the fifth connecting end is hinged to the fourth connecting end, and the sixth connecting end is connected to the tool support. Wherein, the first connecting rod includes a limit fitting portion that cooperates with the limit stopper, and the limit fitting portion is configured to be able to rotate around the limit stopper.

5. The lawn mower according to claim 4, characterized in that The limiting matching portion is a limiting groove, and the first connecting rod further includes a protruding portion protruding toward the limiting stopper. The limiting sliding block is arranged on the protruding portion and is opposite to the limiting stopper.

6. The lawn mower according to claim 5, characterized in that The hinged position of the third connecting end and the second connecting end is located at the limiting groove, When the limiting groove rotates around the limiting block, the main connecting rod and the second connecting rod move relatively to push the tool support to flip.

7. The lawn mower according to any one of claims 4 to 6, characterized in that: The tool support is connected with a first self-locking structure, and the main connecting rod has a second self-locking structure at the first connecting end that cooperates with the first self-locking structure. When the tool support is in an initial state, the first self-locking structure and the second self-locking structure achieve self-locking.

8. The lawn mower according to claim 7, characterized in that The first self-locking structure includes a self-locking pin and a spring supporting the self-locking pin, wherein the self-locking pin includes a first clamping portion. The second self-locking structure includes a second clamping portion capable of being clamped with the first clamping portion.

9. The lawn mower according to claim 7, characterized in that The connecting rod assembly also includes: The third connecting rod has a seventh connecting end and an eighth connecting end, wherein the seventh connecting end is hinged to the sixth connecting end, and the eighth end is hinged to the first end.

10. The lawn mower according to claim 9, characterized in that The third connecting rod includes a pushing portion disposed toward the first self-locking structure, When the limit sliding block moves to the limit stopper and is subjected to force, the first connecting rod, the second connecting rod and the third connecting rod are subjected to force, and the pushing portion pushes the first self-locking structure to unlock the first self-locking structure and the second self-locking structure.

11. The lawn mower according to claim 3, characterized in that The limiting device comprises a limiting slide rail arranged on at least one side of the lifting slide rail, wherein the limiting slide rail has a straight portion and a bending portion, which are respectively configured to limit the lifting track and the flipping track. The limiting sliding block is slidably connected to the limiting sliding rail.

12. The lawn mower according to claim 11, characterized in that The connecting rod assembly comprises: The fourth connecting rod has a ninth connecting end and a tenth connecting end opposite to each other, wherein the ninth connecting end is slidably connected to the limiting slide rail and includes the limiting slide block, and the tenth connecting end is hinged to the tool support. a fifth connecting rod having an eleventh connecting end and a twelfth connecting end opposite to each other, wherein the eleventh connecting end is hinged to the slide seat, and the twelfth connecting end is hinged to the tool support, The fourth connecting rod has an axial hole in the middle, the sliding seat is connected with a sliding seat connecting rod, and the end of the sliding seat connecting rod is hinged to the axial hole.

13. The lawn mower according to claim 3, characterized in that The limiting device comprises a limiting slide groove arranged on at least one side of the lifting slide rail, and the limiting slide groove has an opening portion and is configured to limit the flipping trajectory.

14. The lawn mower according to claim 13, characterized in that The limit slider is slidably connected to the lifting slide rail. The connecting rod assembly comprises: The slide bar has a thirteenth connecting end and a fourteenth connecting end opposite to each other and a sliding guide portion arranged between the thirteenth connecting end and the fourteenth connecting end, wherein the thirteenth connecting end is hinged to the end of the limit sliding block, The sixth connecting rod has a fifteenth connecting end and a sixteenth connecting end, wherein the fifteenth connecting end is hinged to the fourteenth connecting end, and the sixteenth connecting end is hinged to the tool support. The seventh connecting rod has a fifteenth connecting end and a sixteenth connecting end, wherein the fifteenth connecting end is fixed to the slide seat and slidably connected to the sliding guide portion, and the sixteenth connecting end is hinged to the tool support.

15. The lawn mower according to claim 14, characterized in that The slide bar has a limit rotating block matched with the opening portion, When the limit rotating block moves to the opening, the fifteenth connecting end of the seventh connecting rod slides along the sliding guide portion, the sliding rod drives the limit rotating block to rotate at the opening, and the tool holder flips over.

16. The lawn mower according to any one of claims 1 to 6, characterized in that: The lifting drive device includes a driving motor and a lead screw connected to the output end of the driving motor. The slide seat includes a transmission part threadably connected to the lead screw.

17. The lawn mower according to claim 16, characterized in that The lifting drive device also includes: The encoder is configured to record the number of revolutions of the drive motor so as to obtain the state of the tool holder.

18. The lawn mower according to any one of claims 2 to 6, characterized in that: The lifting slide rail includes a slider slide rail, an optical axis slide rail or a slide groove slide rail.

19. The lawn mower according to any one of claims 1 to 6, characterized in that: Also includes: a tool assembly connected to the tool support, and The sensor is disposed on the lifting assembly or the flipping assembly and is configured to detect the state of the tool assembly.

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