CN213960789U - Lawn mower and unmanned aerial vehicle - Google Patents

Abstract

The utility model discloses a lawn mower and unmanned aerial vehicle relates to the technical field of mowing. The mower comprises a reel, a mowing device, a lifting device and a buffering device. The mowing device comprises a chassis and a mowing mechanism, wherein the mowing mechanism is arranged on the chassis and used for mowing; the first end of the lifting device is connected with the machine disc, and the second end of the lifting device extends in the direction far away from the machine disc; the first end of the buffer device is connected with the second end of the lifting device, and the second end of the buffer device is connected with the chassis and used for buffering acting force applied to the mowing mechanism during operation. The mowing height of the mower is adjustable, different operation scenes can be adapted, meanwhile, the stability and the reliability of the mower during operation can be effectively guaranteed, loss can be reduced, and the service life of the mower is guaranteed.

Description

Lawn mower and unmanned aerial vehicle

Technical Field

The utility model relates to a technical field mows particularly, relates to a lawn mower and unmanned aerial vehicle.

Background

In the prior art, in order to adapt to different mowing operation scenes, a function of mowing operation at different heights needs to be provided for the mower. However, in the prior art, the mowing height is adjustable, so that the stability and the reliability of the mower during operation are correspondingly influenced, and the service life of the mower is easily influenced by loss.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lawn mower, this lawn mower's height-adjustable that mows can adapt to different operation scenes, and stability and the reliability of this lawn mower when the operation can also be ensured effectively simultaneously, can reduce the loss to guarantee its life.

Another object of the present invention is to provide an unmanned aerial vehicle, which includes the above mower. Therefore, the unmanned equipment has the advantages of adjustable mowing height, adaptability to different operation scenes, high stability and reliability, small loss and long service life.

The embodiment of the utility model is realized like this:

in a first aspect, the present invention provides a lawn mower, comprising:

a chassis;

the mowing device comprises a chassis and a mowing mechanism, wherein the mowing mechanism is arranged on the chassis and is used for mowing;

the first end of the lifting device is connected with the machine disc, and the second end of the lifting device extends in the direction far away from the machine disc;

and the first end of the buffer device is connected with the second end of the lifting device, and the second end of the buffer device is connected with the chassis and used for buffering acting force applied to the mowing mechanism during operation.

In an optional embodiment, the mower comprises a plurality of lifting devices and a plurality of buffering devices, wherein first ends of the plurality of lifting devices are arranged on the mower disc at intervals, and second ends of the plurality of lifting devices are respectively arranged in one-to-one correspondence with the plurality of buffering devices.

In an alternative embodiment, the lifting device comprises a first mounting member, a second mounting member and a lifting mechanism; the first mounting piece is positioned at the first end of the lifting device and is used for being fixedly connected with the machine disc, and the second mounting piece is positioned at the second end of the lifting device and is used for being connected with the buffer device; the lifting mechanism is connected and arranged between the first installation part and the second installation part and used for driving the second installation part to move in the direction far away from or close to the first installation part so as to adjust the mowing height of the mowing mechanism.

In an alternative embodiment, the lifting mechanism includes a driving assembly and a connecting rod assembly, the first mounting member is disposed at a first end of the connecting rod assembly, the second mounting member is disposed at a second end of the connecting rod assembly, and the driving assembly is in transmission connection with the connecting rod assembly and is used for driving the second end of the connecting rod assembly to be close to or far away from the first end of the connecting rod assembly.

In an alternative embodiment, the drive assembly includes a drive member, a screw, and a slide; the connecting rod assembly comprises a first connecting rod assembly and a second connecting rod assembly, the first connecting rod assembly comprises a first connecting rod and a second connecting rod which are arranged at an included angle, the second connecting rod assembly comprises a third connecting rod and a fourth connecting rod which are arranged at an included angle, the first end of the first connecting rod and the first end of the second connecting rod are both hinged with the first mounting piece, the second end of the first connecting rod is hinged with the first end of the fourth connecting rod, the second end of the second connecting rod is hinged with the first end of the third connecting rod, and the second end of the third connecting rod and the second end of the fourth connecting rod are both hinged with the second mounting piece;

the first end of the screw rod is arranged at the hinged position of the first connecting rod and the fourth connecting rod, the second end of the screw rod extends to the hinged position of the second connecting rod and the third connecting rod, and the sliding block is in threaded fit with the screw rod, is arranged at the hinged position of the second connecting rod and the third connecting rod and is in hinged fit with the second connecting rod and the third connecting rod;

the driving piece is in transmission connection with the screw rod and is configured to drive the screw rod to rotate so as to drive the sliding block to move along the screw rod, and therefore the second installation piece is driven to be close to or far away from the first installation piece.

In an optional embodiment, the buffering device includes a buffering housing and a buffering member, the buffering housing has an installation cavity, one end of the buffering housing is connected to the lifting device, the other end of the buffering housing is connected to the chassis, and the buffering member is disposed in the installation cavity.

In an optional embodiment, the buffering device further includes an installation shaft, the installation shaft extends along a direction from the lifting device to the chassis and is disposed in the installation cavity, and the buffering member is sleeved on the outer side of the installation shaft.

In an optional embodiment, the buffering device includes a plurality of buffering parts and a plurality of mounting shafts disposed in one-to-one correspondence with the buffering parts, the mounting shafts are disposed in the mounting cavity at intervals, and each buffering part is sleeved outside the mounting shaft at a corresponding position.

In an alternative embodiment, the buffer member includes at least one of a cushion pad and an elastic member.

In a second aspect, the present invention provides an unmanned aerial vehicle, including:

a frame and a mower of any one of the preceding embodiments, the mower having a deck fixedly connected to the frame.

The embodiment of the utility model provides an at least possess following advantage or beneficial effect:

an embodiment of the utility model provides a lawn mower, it includes reel, grass cutting device, elevating gear and buffer. The mowing device comprises a chassis and a mowing mechanism, wherein the mowing mechanism is arranged on the chassis and used for mowing; the first end of the lifting device is connected with the machine disc, and the second end of the lifting device extends in the direction far away from the machine disc; the first end of the buffer device is connected with the second end of the lifting device, and the second end of the buffer device is connected with the chassis and used for buffering acting force applied to the mowing mechanism during operation. On one hand, the mower enables the mowing height of the lower mowing device to be adjustable through the arrangement of the lifting device, so that the mower can perform mowing operation at different heights, and can adapt to different operation scenes and different types of grass crops; on the other hand, the mower can buffer the acting force of the mowing device when the mowing device is collided or mows by arranging the buffer device, thereby effectively ensuring the stability and the reliability of the mower during operation, reducing the loss of the mower and ensuring the service life of the mower.

The embodiment of the utility model also provides an unmanned equipment, it includes foretell lawn mower. Therefore, the unmanned equipment has the advantages of adjustable mowing height, adaptability to different operation scenes, high stability and reliability, small loss and long service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram three of the unmanned aerial vehicle according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention;

fig. 5 is a first schematic structural diagram of a mower according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a mower according to an embodiment of the present invention;

fig. 7 is a schematic partial structural view of a mower according to an embodiment of the present invention;

fig. 8 is a schematic partial structural view of a mower according to an embodiment of the present invention;

fig. 9 is a schematic partial sectional view of a mower according to an embodiment of the present invention;

fig. 10 is a schematic view of a partial structure of a mower according to an embodiment of the present invention;

fig. 11 is a schematic partial structural view of a mower according to an embodiment of the present invention;

fig. 12 is an exploded schematic view of a grass cutting member of a lawn mower according to an embodiment of the present invention.

Icon 100-mower; 102-a chassis; 103-a substrate; 104-a mowing device; 106-a chassis; 108-a mowing mechanism; 110-a lifting device; 112-a buffer device; 114-a first mount; 116-a second mount; 118-a lifting mechanism; 124-a driver; 126-screw rod; 128-a slide block; 130-a first link; 132-a second link; 134-a third link; 136-a fourth link; 138-a connecting plate; 140-a buffer housing; 142-a first housing; 144-a second housing; 146-a buffer; 150-mounting the shaft; 152-a first pulley; 153-a second pulley; 154-a guide wheel; 155-a transmission belt; 156-a tensioner; 158-seat body; 160-a movable rod; 162-a drive motor; 164-a housing; 166-a grass cutting; 168-mowing shaft; 170-mowing frame body; 172-blade; 174-a bearing seat; 176-a bearing; 178-oil seal seat; 180-axle seat boss; 200-unmanned equipment; 202-a frame; 204-a wheel; 206-main beam; 208-connecting the beams.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the related art, in order to improve the mowing efficiency of the mower, the mower can be mounted on unmanned equipment such as an unmanned vehicle for use, and the mowing operation can be carried out by the unmanned equipment by fixedly connecting the mower and a frame of the unmanned equipment. Meanwhile, in order to ensure the mowing quality and efficiency, the mower generally comprises a height adjusting mechanism and a mowing mechanism, wherein the conventional height adjusting mechanism is a cylinder or other linear motion mechanisms which are fixedly connected with the mowing mechanism and used for driving the mowing mechanism to directly perform mowing operation. However, in this way of adjusting the mowing height, the acting force applied to the mowing mechanism during mowing operation is concentrated and is easily transmitted to the height-adjusting mechanism, which affects the stability and reliability of the whole mower, and causes the loss of the mowing mechanism and the height-adjusting mechanism, which seriously affects the service life of the mower.

In view of the above, the present embodiment provides a lawnmower that is also used by being mounted on an unmanned device such as an unmanned vehicle. And the mowing height of the mowing device can be adjusted through the lifting device of the mowing machine to adapt to different scenes, and meanwhile, the acting force of the mowing device in the collision or operation process can be buffered through the buffering device, so that the overall stability and reliability of the mowing machine are ensured, the loss of the mowing machine is reduced, and the service life of the mowing machine is ensured. The structure of the mower and the unmanned aerial vehicle will be described in detail below.

Fig. 1 is a first schematic structural diagram of an unmanned aerial vehicle 200 provided in this embodiment; fig. 2 is a schematic structural diagram of an unmanned aerial vehicle 200 according to this embodiment. Referring to fig. 1 and fig. 2, in the present embodiment, the unmanned aerial vehicle 200 is an unmanned vehicle, and the unmanned aerial vehicle 200 includes a frame and the lawn mower 100 disposed on the frame, where the frame includes a frame 202 and four wheels 204 disposed on two sides of the frame 202, and the lawn mower 100 is fixedly connected to the frame 202.

In detail, the frame 202 includes two spaced apart main beams 206 and a plurality of connecting beams 208 connected between the two main beams 206. The four wheels 204 are oppositely arranged on one side of the two main beams 206 away from each other in pairs, and are used for driving the whole frame 202 to move. The mower 100 is fixedly connected with the main beam 206 and is located below the main beam 206, namely, in an installation area formed by four wheels 204 below the frame 202, so as to perform mowing operation along with the movement of the frame 202. With lawn mower 100 setting up in the installation area, also can make full use of the space of unmanned car below for unmanned equipment 200's structure is compacter, and shared space is littleer simultaneously, more can use narrow and small space operation scene.

In the present embodiment, the unmanned aerial vehicle 200 further includes an essential structure of an unmanned vehicle such as a battery and a controller, and the unmanned vehicle can be controlled to drive the lawn mower 100 to perform self-propelled mowing work by setting a route of the unmanned vehicle through the controller, without manual real-time control. Meanwhile, the battery, the controller and other necessary structures are the same as those in the prior art, and the structure thereof is not described in detail in this embodiment.

It should be noted that, in other embodiments, the mower 100 may also be mounted on an armrest cart, other trimming cart, or a conventional vehicle, or may even be used alone.

Fig. 3 is a schematic structural diagram three of the unmanned aerial vehicle 200 provided in this embodiment; fig. 4 is a fourth schematic structural diagram of the unmanned aerial vehicle 200 provided in this embodiment; fig. 5 is a first schematic structural diagram of the lawn mower 100 according to the present embodiment; fig. 6 is a second schematic structural diagram of the lawn mower 100 according to the present embodiment. Referring to fig. 3 to 6, in the present embodiment, the lawn mower 100 specifically includes a reel 102, a mowing device 104, a lifting device 110, and a buffering device 112.

In detail, the chassis 102 is used for being fixedly connected with the main beam 206 of the frame 202, and the chassis 102 may be a plate-shaped structure and has a substantially thin rectangular parallelepiped shape. The chassis 102 is adapted to be fixedly attached to the frame 202 above the main beam 206 to ensure stability of the mower 104, the lifting device 110, and the bumper 112. Of course, in other embodiments, the chassis 102 may also be selected as the housing 164 or other mounting and matching structures, and the embodiment is not limited.

In detail, the lifting device 110 is disposed on the chassis 102, and a first end of the lifting device 110 is connected to the chassis 102, and a second end of the lifting device 110 extends away from the chassis 102 to cooperate with the mowing device 104. The grass cutting device 104 includes a chassis 106 and a grass cutting mechanism 108, and the grass cutting mechanism 108 is provided on the chassis 106 for performing grass cutting work. Under the driving of the lifting device 110, the mowing device 104 can move in the direction close to or far away from the reel 102 so as to perform mowing operation at different heights; moreover, through the arrangement of the lifting device 110, when the mowing device 104 is not needed, the mowing device 104 can be adjusted to a higher position, the ground clearance is increased, so that the trafficability of the unmanned equipment 200 is good, the probability of collision with foreign matters due to too low position is reduced, and the probability of damage is reduced. As shown in fig. 3 and 4, in fig. 4, compared to fig. 3, the mowing device 104 can be driven by the lifting device 110 to be disposed closer to the ground, so as to perform mowing operation at a lower position; compared with fig. 4, in fig. 3, the mowing device 104 is driven by the lifting device 110 to be disposed closer to the reel 102, so that the mowing device 104 can be accommodated in a scene with a higher mowing height, and meanwhile, the mowing device 104 can be retracted below the reel 102 when mowing operation is not needed, so that the unmanned aerial vehicle 200 has good passing performance, and the mowing device 104 is protected from being damaged by foreign matters.

In detail, a first end of the buffer device 112 is connected to a second end of the lifting device 110, and a second end of the buffer device 112 is connected to the chassis 106 for buffering the acting force applied to the mowing mechanism 108 during operation. Through the arrangement of the buffer device 112, the acting force applied to the mowing mechanism 108 during operation can be effectively buffered, so that the stability and reliability of the mower 100 during operation can be effectively ensured, meanwhile, the loss of the mower 100 is reduced, and the service life of the mower is ensured.

That is, on one hand, the mower 100 can adjust the mowing height of the lower mowing device 104 through the arrangement of the lifting device 110, so that the mower 100 can perform mowing operation at different heights, and can adapt to different operation scenes and different types of grass crops; on the other hand, in the mower 100, the damping device 112 is provided to damp the acting force of the mower 104 when the mower is collided or performs mowing work, so that the stability and reliability of the mower 100 during working can be effectively ensured, the loss of the mower 100 is reduced, and the service life of the mower is ensured.

Referring to fig. 5 and 6 again, in the present embodiment, the deck 102 includes two base plates 103, and the two base plates 103 are respectively and fixedly connected to the upper portions of the two main beams 206, so that the entire lawn mower 100 can fully utilize the mounting area formed between the four wheels 204 below the main beams 206. In correspondence with this, the mower 100 comprises a plurality of lifting devices 110 and a plurality of cushioning devices 112, and in particular comprises two lifting devices 110 and two cushioning devices 112. The two first ends of the two lifting devices 110 are disposed on the chassis 102 at intervals, and specifically, the two first ends of the two lifting devices 110 are disposed in one-to-one correspondence with the two substrates 103, the second ends of the two lifting devices 110 are disposed in one-to-one correspondence with the first ends of the two buffering devices 112, and the second ends of the two buffering devices 112 are disposed on the chassis 106 at intervals and specifically located at two ends of the chassis 106 in the length direction.

Through the arrangement, on one hand, the whole mower 100 can fully utilize the installation area and can move along with the unmanned vehicle to carry out mowing operation, so that the unmanned equipment 200 is simpler and more compact in structure, smaller in occupied space and more suitable for narrow space operation scenes; on the other hand, both ends of the chassis 106 in the length direction can be effectively adjusted in height through the lifting device 110, so that the mower 100 can perform mowing operation at different heights; meanwhile, effective buffering of acting force can be realized through the buffering device 112, so that normal operation of mowing operation is guaranteed, overall loss of the mower 100 can be reduced, and the service life of the mower 100 is guaranteed; moreover, because the action environment of the mower 100 may have unevenness, when the number of the buffering devices 112 is selected to be plural, the buffering action provided by the buffering devices 112 at different positions can make the acting force applied to each position of the mower 100 more balanced, thereby avoiding the occurrence of wear phenomenon caused by excessive acting force applied to part of the positions, and further fully ensuring the service life of the mower 100. Of course, in other embodiments, three, four or more lifting devices 110 and buffer devices 112 may be provided according to the number, and this embodiment is not limited.

Referring to fig. 5 to fig. 6 again, in the present embodiment, the lifting device 110 specifically includes a first mounting member 114, a second mounting member 116, and a lifting mechanism 118.

In detail, the first mounting member 114 includes three first plates (not shown) vertically connected in sequence, and the three first plates are connected to each other to form a substantially U-shaped structure having an opening. The second mounting member 116 includes three second plates (not shown) vertically connected in sequence, and the three second plates are also substantially U-shaped with an opening after being connected, and the opening of the U-shaped structure of the first mounting member 114 is opposite to the opening of the U-shaped structure of the second mounting member 116. Meanwhile, a first mounting member 114 is disposed at a first end of the lifting device 110 for fixedly connecting with the base plate 103 of the chassis 102. The second mounting member 116 is located at the second end of the lifting device 110 and is configured to be fixedly connected to the first end of the buffer device 112 at a corresponding position. The lifting mechanism 118 is connected between the first mounting part 114 and the second mounting part 116, and is used for driving the second mounting part 116 to move in a direction away from or close to the first mounting part 114, so as to adjust the mowing height of the mowing mechanism 108, and meet mowing requirements of different scenes at different heights.

In more detail, the lift mechanism 118 includes a drive assembly and a linkage assembly. The first installation part 114 is arranged at the first end of the connecting rod assembly, the second installation part 116 is arranged at the second end of the connecting rod assembly, the driving assembly is in transmission connection with the connecting rod assembly and is used for driving the second end of the connecting rod assembly to be close to or far away from the first end of the connecting rod assembly, so that the second installation part 116 moves relative to the first installation part 114, the whole mowing device 104 can move relative to the machine disc 102, mowing on different heights can be achieved, and mowing requirements of different heights can be met.

More specifically, referring to fig. 5 and 6 again, the driving assembly includes a driving member 124, a screw 126 and a sliding block 128. The driving member 124 may be a motor, the screw 126 is a rod-shaped structure with a thread structure on the outer side, and the slider 128 is a substantially rectangular parallelepiped structure, and is engaged with the screw 126 in a thread manner and capable of moving along the length direction of the screw 126.

More specifically, referring to fig. 5 and 6 again, the link assembly includes a first link 130 assembly and a second link 132 assembly, and the first link 130 assembly is located above the second link 132 assembly along the vertical direction, and the first link 130 assembly includes a first link 130 and a second link 132 arranged at an angle, and the second link 132 assembly includes a third link 134 and a fourth link 136 arranged at an angle. A first end of the first link 130 and a first end of the second link 132 are respectively hinged to two opposite first plates of the first mounting member 114, a second end of the first link 130 is hinged to a first end of the fourth link 136, a second end of the second link 132 is hinged to a first end of the third link 134, and a second end of the third link 134 and a second end of the fourth link 136 are respectively hinged to two opposite second plates of the second mounting member 116. And the lengths of the first link 130, the second link 132, the third link 134 and the fourth link 136 are all the same, so that the first link 130, the second link 132, the third link 134 and the fourth link 136 form a four-bar linkage with a rhombus structure.

Meanwhile, the driving member 124 is disposed at the hinge joint of the first connecting rod 130 and the fourth connecting rod 136 through the connecting plate 138, the first end of the screw 126 is disposed at the hinge joint of the first connecting rod 130 and the fourth connecting rod 136 and is in transmission connection with the driving member 124, and the second end of the screw 126 extends toward the hinge joint of the second connecting rod 132 and the third connecting rod 134, so that the screw 126 extends in the horizontal direction. The sliding block 128 is in threaded fit with the screw 126, is arranged at the hinge joint of the second connecting rod 132 and the third connecting rod 134, and is in hinged fit with both the second connecting rod 132 and the third connecting rod 134. By this arrangement, when the driving member 124 rotates in the forward or reverse direction, the screw 126 can be driven to rotate, so that the slide block 128 screwed with the screw 126 reciprocates along the extending direction of the screw 126, thereby driving the second mounting member 116 to approach or separate from the first mounting member 114, and further adjusting the mowing height of the mowing device 104.

It should be noted that, in the present embodiment, the two lifting mechanisms 118 may be arranged in a mirror image. Since the driving member 124 is disposed at the hinge of the first link 130 and the fourth link 136 through the connecting plate 138, the weight near the hinge of the first link 130 and the fourth link 136 is relatively heavy, and the two lifting mechanisms 118 are disposed in mirror image, so that the two driving members 124 are respectively disposed at the two ends of the chassis 106 in the width direction, and thus the stress can be balanced, so as to further ensure the reliability and stability of the lawn mower 100 during the operation.

It should be noted that, in this embodiment, a linear driving mechanism such as an air cylinder may also be used to drive the mowing device 104 to move in a direction approaching or moving away from the reel 102, so as to adjust the mowing height, so as to adapt to different working environments, and this embodiment is not limited thereto.

Fig. 7 is a partial schematic structural view of the lawn mower 100 according to the embodiment; fig. 8 is a partial schematic structural view of the lawn mower 100 according to the present embodiment; fig. 9 is a partial sectional structure schematic view of the lawn mower 100 according to the embodiment. Referring to fig. 7 to 9, in the present embodiment, the buffering device 112 specifically includes a buffering housing 140 and a buffering member 146.

In detail, the buffer housing 140 includes a first housing 142 and a second housing 144 which are connected to each other, the first housing 142 and the second housing 144 are in an inverted U-shaped structure, and openings of the U-shaped structures of the first housing 142 and the second housing 144 are opposite to each other, so that the first housing 142 and the second housing 144 can be connected to each other to form a mounting cavity. And, one end of the buffer housing 140 is connected to the lifting device 110, and the other end is connected to the chassis 106, so that the lifting device 110 and the chassis 106 are stably connected. Meanwhile, the buffer 146 is disposed in the mounting cavity to provide an effective buffering effect, so that the mowing device 104 can achieve a buffering effect when colliding with a hard object, and the probability of damage to the mower 100 is reduced.

More specifically, the buffer 146 is a cushion block, and the material of the cushion block can be selected from materials with a buffering function, such as rubber, and the cushion block has a cylindrical structure. Meanwhile, the buffering device 112 further includes a mounting shaft 150, the mounting shaft 150 is disposed in the mounting cavity along a direction from the lifting device 110 to the chassis 106, and the upper end of the mounting shaft 150 is fixedly connected to the first casing 142 and the lower end of the mounting shaft is fixedly connected to the second casing 144. The buffering member 146 is sleeved outside the mounting shaft 150, so that the buffering device 112 can bear radial and axial compression force, thereby effectively reducing the probability of damage to the lawn mower 100. Of course, in other embodiments, the buffer member 146 may also be an elastic member, such as a spring, whose upper end and lower end are fixedly connected to the top wall and the bottom wall of the mounting cavity, respectively; or, the buffer 146 may also be a composite structure of an elastic element and a buffer cushion block, so as to effectively ensure the buffer effect; meanwhile, the buffer 146 may also be installed in the installation cavity in other manners, for example, the buffer may be accommodated in the installation cavity in a plugging manner, and the embodiment is not limited thereto.

As an optional solution, the buffering device 112 includes a plurality of buffering members 146 and a plurality of mounting shafts 150 disposed in a one-to-one correspondence with the buffering members 146, and in this embodiment, the buffering device 112 includes two buffering members 146 and two mounting shafts 150, and the two mounting shafts 150 are respectively disposed at two ends of the mounting cavity, and both extend along the vertical direction. The outside of every installation axle 150 all is equipped with a cushion block, can guarantee the stability of bolster 146 on the one hand, and on the other hand can also guarantee buffer device 112's buffering effect fully, can effectively bear radial and axial compressive force to reduce the probability that lawn mower 100 damaged. Of course, in other embodiments, the positions of the buffer 146 and the mounting shaft 150 may also be adjusted according to requirements, and the number of the buffer 146 and the mounting shaft 150 may also be adjusted according to requirements, for example, three, four, or even more may be selected, which is not limited in this embodiment.

Fig. 10 is a schematic view of a partial structure of the lawn mower 100 according to the present embodiment. Referring to fig. 10, in the present embodiment, the mowing mechanism 108 specifically includes a driving mechanism and two mowing members 166 in transmission connection with the driving mechanism.

In detail, the driving mechanism is disposed at one end of the chassis 106 close to the lifting device 110, and specifically includes a first pulley 152, two second pulleys 153, a transmission belt 155, and a driving motor 162. The first belt wheel 152 and the second belt wheel 153 are both toothed belt wheels, the first belt wheel 152 and the second belt wheel 153 can rotate relative to the chassis 106, the first belt wheel 152 is movably connected with the chassis 106 through a driving shaft, and the second belt wheel 153 is movably connected with the chassis 106 through a mowing shaft 168. The driving motor 162 is in transmission connection with the first belt pulley 152 and is used for driving the first belt pulley 152 to rotate, the two second belt pulleys 153 are arranged on the chassis 106 at intervals, and the distance between the two second belt pulleys 153 and the first belt pulley 152 is equal. The transmission belt 155 is a toothed transmission belt 155, and the transmission belt 155 is sleeved on the outer sides of the two second belt wheels 153 and the first belt wheel 152 together to mesh with the toothed structures of the first belt wheel 152 and the second belt wheel 153, so that the driving motor 162 can drive the first belt wheel 152 to rotate when rotating forward or backward, and further can drive the transmission belt 155 to move, and then can drive the two second belt wheels 153 to rotate synchronously and in the same direction.

In other embodiments, the driving mechanism may also be driven by a chain and a sprocket, which is not limited in this embodiment.

Optionally, the driving mechanism further includes a tension assembly and two guide wheels 154, the tension assembly includes a movable rod 160 having a base 158 and a base 158 in threaded connection, and a tension wheel 156 fixedly disposed on the movable rod 160, such that the tension wheel 156 can move in a direction away from and close to an outer edge of the transmission belt 155 and can cooperate with the transmission belt 155 as the movable rod 160 moves relative to the base 158, and when the tension wheel 156 cooperates with the transmission belt 155, the transmission belt 155 can be tensioned, thereby ensuring stability and reliability of transmission. The two guide wheels 154 are movably disposed on the chassis 106 through the guide wheels 154 respectively, and can be engaged with the outer edge of the transmission belt 155 to increase the wrap angle of the transmission belt 155 and ensure the stability of the transmission belt 155.

It should be noted that, in the present embodiment, two guide rollers 154 are respectively located between the two second pulleys 153 and the first pulley 152 to ensure the stability of the operation of the positive-pass transmission belt 155. In other embodiments, the installation position and the number of the guide wheels 154 can be adjusted according to the requirement, and the embodiment is not limited.

Further, the mowing mechanism 108 further comprises a housing 164 covering the driving mechanism, wherein the housing 164 is specifically located at one end of the chassis 106 close to the lifting device 110, so as to cover the transmission belt 155, the first pulley 152, the second pulley 153, the tensioning assembly and the guide wheel 154 with the chassis 106 inside a covering cavity formed therebetween, so as to ensure the safety of the mowing mechanism.

In detail, two grass cutting members 166 are arranged in one-to-one correspondence with the two second pulleys 153, and each grass cutting member 166 is fixedly connected with a grass cutting shaft 168 on which the second pulley 153 is mounted so as to rotate with the rotation of the grass cutting shaft 168.

Specifically, fig. 11 is a schematic partial structural view of the lawn mower 100 provided in this embodiment; fig. 12 is an exploded view of the grass cutting member 166 of the lawn mower 100 according to the present embodiment. Referring to fig. 11 and 12, in the present embodiment, each grass cutting member 166 includes a frame 170 and two blades 172 disposed at two ends of the frame 170. The mowing frame 170 is substantially provided in a bent structure in a "convex" shape, and the mowing frame 170 is sleeved on the outer side of the mowing shaft 168 at a corresponding position and fixedly connected with the mowing shaft 168 so as to rotate along with the rotation of the mowing shaft 168. The blade 172 may be a flail blade, so that the lawn is relatively flat and can be retracted in time when encountering an obstacle. And the two blades 172 are spaced apart from the mowing shaft 168 by the same distance so that the mowing frame 170 can be smoothly rotated. Meanwhile, the mowing areas of the mowing frame bodies 170 of the two mowing pieces 166 are partially overlapped when rotating so as to reduce the occurrence of missed mowing, and the initial positions of the mowing frame bodies 170 are kept perpendicular to each other so as to ensure that the mowing frame bodies and the mowing frame bodies can synchronously rotate in the same direction and normally rotate.

It should be noted that in other embodiments, only one blade 172 or a plurality of blades 172 may be disposed on the mowing frame 170, and the type of the blade 172 may also be selected to have other structures with blades, which is not limited in this embodiment.

It should be noted that, in this embodiment, since the number of the second pulleys 153 is two, the number of the grass cutting members 166 is also correspondingly set to be two, but in other embodiments, the number of the second pulleys 153 and the number of the grass cutting members 166 may also be adjusted according to requirements, for example, three or four may be selected, and the embodiment is not limited.

Referring to fig. 12 again, in the present embodiment, in order to ensure the stability of the installation and operation of the mowing frame 170 and the mowing axle 168, the mowing member 166 further includes a bearing seat 174, a bearing 176, an oil seal seat 178 and an axle seat boss 180. The bearing 176 is fixedly connected with the mowing frame body 170, the shaft seat boss 180 is provided with a cavity, and the mowing shaft 168 can penetrate through the cavity and be fixedly connected with the mowing frame body 170. The bearing seat 174 and the oil seal seat 178 are sleeved on the outer side of the mowing shaft 168 and used for being matched with the chassis 106, the bearing seat 174 is provided with an accommodating cavity, a bearing 176 is arranged in the accommodating cavity, and the bearing 176 is located between the oil seal seat 178 and the bearing seat 174 so as to ensure the smoothness of the mowing shaft 168 in the rotating process and reduce the friction force on the mowing shaft 168. Of course, in this embodiment, the mowing member 166 further includes an oil seal member and a snap spring having a conventional structure, which is not described in detail in this embodiment.

The following describes in detail the installation process and the operation principle of the lawn mower 100 and the unmanned aerial vehicle 200 according to the embodiment of the present invention:

when the mower 100 is installed, the driving assembly and the connecting rod assembly are sequentially assembled to form the lifting mechanism 118, and the two ends of the lifting mechanism 118 are fixedly connected with the first installation part 114 and the second installation part 116 to form the lifting device 110; then, the first belt pulley 152, the two second belt pulleys 153, the transmission belt 155 and the driving motor 162 are installed on the chassis 106, the housing 164 is covered on the outer side of the above components, and the two grass cutting members 166 are respectively connected with the two second belt pulleys 153 through the grass cutting shaft 168 in a transmission manner to form the grass cutting device 104; then, the cushion block is sleeved outside the mounting shaft 150, and the mounting shaft 150 is mounted in the cushion housing 140 to form the cushion device 112; finally, the first end of the lifting device 110 is connected to the chassis 102, the second end of the lifting device 110 is connected to the first end of the damping device 112, and the second end of the damping device 112 is fixedly connected to the chassis 106 of the mowing device 104. When the unmanned aerial vehicle 200 is installed, the two lifting devices 110 of the installed lawnmower 100 may be fixed to the two main beams 206 of the frame 202, respectively.

When the unmanned aerial vehicle 200 mounted with the mower 100 is used for mowing, the unmanned aerial vehicle 200 is controlled to move to a specified position, then the driving motor 162 is started to drive the first belt pulley 152 to rotate, the second belt pulley 153 is driven to rotate, and the two grass cutting pieces 166 are driven to synchronously move in the same direction, so that mowing operation can be carried out. Meanwhile, if the working height needs to be adjusted, the lifting device 110 can be used for driving the mowing device 104 to move away from or close to the frame 202, and when the mowing operation is not needed, the mowing device 104 can be driven to retract below the frame 202.

In the above process, on one hand, the mower 100 enables the mowing height of the lower mowing device 104 to be adjustable through the arrangement of the lifting device 110, so that the mower 100 can perform mowing operation at different heights, and can adapt to different operation scenes and different types of grass crops; on the other hand, in the mower 100, the damping device 112 is provided to damp the acting force of the mower 104 when the mower is collided or performs mowing work, so that the stability and reliability of the mower 100 during working can be effectively ensured, the loss of the mower 100 is reduced, and the service life of the mower is ensured.

To sum up, the embodiment of the utility model provides a lawn mower 100 and unmanned aerial vehicle 200 have mowing height-adjustable, can adapt to different operation scenes, and the commonality is strong, and stability and reliability are high, and the loss is little, long service life's advantage.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A lawn mower, comprising:

a chassis;

the mowing device comprises a chassis and a mowing mechanism, wherein the mowing mechanism is arranged on the chassis and is used for mowing;

the first end of the lifting device is connected with the machine disc, and the second end of the lifting device extends in the direction far away from the machine disc;

and the first end of the buffer device is connected with the second end of the lifting device, and the second end of the buffer device is connected with the chassis and used for buffering acting force applied to the mowing mechanism during operation.

2. The mower of claim 1, wherein:

the mower comprises a plurality of lifting devices and a plurality of buffering devices, wherein the first ends of the plurality of lifting devices are arranged on the mower disc at intervals, and the second ends of the plurality of lifting devices are respectively arranged in one-to-one correspondence with the plurality of buffering devices.

3. The mower of claim 1, wherein:

the lifting device comprises a first mounting piece, a second mounting piece and a lifting mechanism; the first mounting piece is positioned at the first end of the lifting device and is used for being fixedly connected with the machine disc, and the second mounting piece is positioned at the second end of the lifting device and is used for being connected with the buffer device; the lifting mechanism is connected between the first installation part and the second installation part and used for driving the second installation part to move in a direction away from or close to the first installation part so as to adjust the mowing height of the mowing mechanism.

4. A lawnmower as claimed in claim 3, wherein:

the lifting mechanism comprises a driving assembly and a connecting rod assembly, the first installation part is arranged at the first end of the connecting rod assembly, the second installation part is arranged at the second end of the connecting rod assembly, and the driving assembly is in transmission connection with the connecting rod assembly and used for driving the second end of the connecting rod assembly to be close to or far away from the first end of the connecting rod assembly.

5. The mower of claim 4, wherein:

the driving assembly comprises a driving piece, a screw rod and a sliding block; the connecting rod assembly comprises a first connecting rod assembly and a second connecting rod assembly, the first connecting rod assembly comprises a first connecting rod and a second connecting rod which are arranged at an included angle, the second connecting rod assembly comprises a third connecting rod and a fourth connecting rod which are arranged at an included angle, the first end of the first connecting rod and the first end of the second connecting rod are both hinged with the first mounting piece, the second end of the first connecting rod is hinged with the first end of the fourth connecting rod, the second end of the second connecting rod is hinged with the first end of the third connecting rod, and the second end of the third connecting rod and the second end of the fourth connecting rod are both hinged with the second mounting piece;

the first end of the screw rod is arranged at the hinged position of the first connecting rod and the fourth connecting rod, the second end of the screw rod extends to the hinged position of the second connecting rod and the third connecting rod, and the sliding block is in threaded fit with the screw rod, is arranged at the hinged position of the second connecting rod and the third connecting rod and is in hinged fit with the second connecting rod and the third connecting rod;

the driving piece is in transmission connection with the screw rod and is configured to drive the screw rod to rotate so as to drive the sliding block to move along the screw rod, and therefore the second installation piece is driven to be close to or far away from the first installation piece.

6. A lawnmower as claimed in any one of claims 1 to 5, wherein:

the buffer device comprises a buffer shell and a buffer piece, the buffer shell is provided with an installation cavity, one end of the buffer shell is connected with the lifting device, the other end of the buffer shell is connected with the chassis, and the buffer piece is arranged in the installation cavity.

7. The mower of claim 6, wherein:

the buffer device further comprises an installation shaft, the installation shaft is arranged along the direction from the lifting device to the chassis, the direction is extended and arranged in the installation cavity, and the buffer piece is sleeved on the outer side of the installation shaft.

8. The mower of claim 7, wherein:

buffer includes a plurality of the bolster and a plurality of that the bolster one-to-one set up the installation axle, it is a plurality of installation axle interval set up in the installation intracavity, and every bolster all overlaps and locates corresponding position the outside of installation axle.

9. The mower of claim 6, wherein:

the buffer member includes at least one of a cushion pad and an elastic member.

10. An unmanned device, comprising:

a frame and a lawnmower as claimed in any one of claims 1 to 9, the deck of the lawnmower being fixedly connected to the frame.

Images