CN212786659U - Height adjusting mechanism and mower - Google Patents

Abstract

The embodiment of the application provides a height adjustment mechanism, including slider, base, carousel and slip axle. The pedestal includes the pedestal, and the pedestal is formed with and holds the chamber and with holding the sliding tray of chamber intercommunication. The sliding groove extends along the height direction of the seat body. The sliding part is positioned in the accommodating cavity. The turntable is formed with a spiral track and is rotationally connected with the base body. One end of the sliding shaft is connected with the sliding piece, and the other end of the sliding shaft penetrates through the sliding groove to be matched with the spiral track. The turntable rotates to drive the other end of the sliding shaft to move along the spiral track, and the sliding shaft slides along the sliding groove to drive the sliding part to do linear motion along the height direction of the base body. The height adjusting mechanism provided by the embodiment of the application is simple in structure and convenient and fast to operate. The embodiment of the application also provides a mower which comprises the height adjusting mechanism.

Description

Height adjusting mechanism and mower

Technical Field

The application relates to the technical field of mowers, in particular to a height adjusting mechanism and a mower.

Background

Generally, users have different requirements on mowing height, and in the prior art, the mowing height is controlled by adjusting the height of a cutterhead from the ground, so that the mower needs to be provided with a height adjusting mechanism for adjusting the height of the cutterhead from the ground.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present application are expected to provide a height adjusting mechanism and a lawn mower, wherein the height adjusting mechanism has a simple structure and is convenient to operate. In order to achieve the above effect, the technical solution of the embodiment of the present application is implemented as follows:

an aspect of an embodiment of the present application provides a height adjustment mechanism, including:

a slider;

the base comprises a base body, wherein an accommodating cavity and a sliding groove communicated with the accommodating cavity are formed in the base body, the sliding groove extends along the height direction of the base body, and the sliding part is positioned in the accommodating cavity;

the rotary table is provided with a spiral track and is rotationally connected with the base body; and

one end of the sliding shaft is connected with the sliding part, the other end of the sliding shaft penetrates through the sliding groove to be matched with the spiral track, the turntable rotates to drive the other end of the sliding shaft to move along the spiral track, and the sliding shaft slides along the sliding groove to drive the sliding part to move linearly along the height direction of the seat body.

Further, the spiral track is a spiral groove, and the outer wall surface of the sliding shaft is in contact fit with the groove wall surface of the spiral track.

Further, the carousel is followed the lateral sliding of pedestal sets up, height adjusting mechanism includes the edge the stop pin and the first elastic component of the lateral setting of pedestal, the one end of stop pin is formed with sticking department and unblock portion, the pedestal is formed with first through-hole, the outer wall of slider is formed with a plurality of edges the locking groove of the direction of height interval setting of pedestal, the sticking department with unblock portion can pass through first through-hole stretches into lock inslot, the stop pin keep away from the one end of sticking department with carousel butt or connection.

Further, the locking groove is formed with a first arc surface, the locking portion is formed with a second arc surface, and the second arc surface abuts against the first arc surface in press fit so that the locking portion is locked with the locking groove.

Further, the base includes the mount pad of being connected with the pedestal, the mount pad is located the pedestal with between the carousel, the mount pad is formed with the installation cavity, the one end that the locking pin is kept away from the sticking department passes the installation cavity with carousel butt or be connected.

Further, the first elastic piece is located in the installation cavity, the first elastic piece is sleeved on the locking pin, a step portion is formed on the locking pin, and the step portion is located between the first elastic piece and the rotary table or between the step portion and the rotary table.

Furthermore, the turntable is arranged along the transverse sliding of the base, the height adjusting mechanism comprises a positioning pin and a second elastic piece which are arranged along the transverse direction of the base, a second through hole is formed in the base, a plurality of locking holes are formed in the outer wall of the sliding piece and are arranged along the height direction of the base at intervals, one end of the positioning pin extends into the locking hole through the second through hole, the other end of the positioning pin is connected with the turntable, the turntable is far away from the base and orders the positioning pin to be separated from the locking hole, and the second elastic piece orders the positioning pin to extend into the locking hole.

Further, the base body is provided with a guide portion extending in the height direction of the base body, the outer wall of the sliding member is provided with a sliding portion, the sliding portion is arranged corresponding to the guide portion, and the sliding portion can move linearly along the guide portion.

Further, the turntable comprises a turntable body and a force application part connected with the turntable body, the turntable body is rotatably connected with the base body, the spiral track is formed on the turntable body, and the force application part is arranged on one side, deviating from the base body, of the turntable body.

Further, the base includes disk seat, disk cover and pivot, the disk cover is formed with dodges the mouth of dodging of application of force portion, the disk seat includes bedplate and annular gusset, the bedplate with the pedestal is connected, the pivot is passed the bedplate, one side of annular gusset with the bedplate is connected, the disk body is located annular gusset with the bedplate encloses the space of establishing into, the disk body with the pivot pin joint, the disk cover lid closes annular gusset deviates from one side of bedplate.

Another aspect of the embodiments of the present application provides a lawn mower, including:

a body;

a cutter motor;

a cutter head; and

the height adjusting mechanism of any one of the above, the base sets up on the organism, the slider is formed with the cavity, the part of blade disc motor is located in the cavity and with the slider is connected, the drive shaft of blade disc motor is followed the bottom of slider stretches out and with the blade disc is connected, the carousel rotates in order to adjust the terrain clearance of blade disc.

The height adjusting mechanism provided by the embodiment of the application is simple in structure and convenient and fast to operate. The height of the sliding part is adjusted by rotating the turntable, the structure is simple, self-locking is realized through the sliding shaft and the spiral track, the sliding part is limited to be at a target height, and the position change of the sliding part under the conditions of vibration, shaking and the like is avoided. The embodiment of the application also provides a mower which comprises the height adjusting mechanism. And therefore also has the same advantageous effects as the above-described height adjusting mechanism.

Drawings

FIG. 1 is a schematic view of a height adjustment mechanism according to an embodiment of the present disclosure;

FIG. 2 is a front view of the height adjustment mechanism of FIG. 1;

FIG. 3 is a left side view of the height adjustment mechanism of FIG. 2;

FIG. 4 is a top view of the height adjustment mechanism of FIG. 2;

FIG. 5 is a partial cross-sectional view of the height adjustment mechanism of FIG. 1;

FIG. 6 is another partial cross-sectional view of the height adjustment mechanism of FIG. 1;

FIG. 7 is a view from another perspective of the structure of FIG. 6;

fig. 8 is a schematic structural diagram of a base according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a locking pin provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of a sliding member according to an embodiment of the present application;

FIG. 11 is a partial cross-sectional view of the slide of FIG. 10;

FIG. 12 is a schematic structural diagram of a view angle of a turntable according to an embodiment of the present application;

fig. 13 is a schematic view of the turntable of fig. 12 from another perspective.

Description of the reference numerals

A height adjustment mechanism 100; a slider 10; a locking groove 10 a; a cavity 10 b; a slide portion 11; a base 20; a base body 21; the accommodation chamber 21 a; a slide groove 21 b; a first through hole 21 c; a guide portion 211; a mounting seat 22; a tray base 23; a seat plate 231; an annular rib plate 232; a tray cover 24; a rotating shaft 25; a flange 26; a turntable 30; a spiral track 30 a; a tray body 31; a force application part 32; a slide shaft 40; a locking pin 50; a lock portion 51; an unlocking portion 52; a step portion 53; a first elastic member 60; a deck motor 200.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

The present application will now be described in further detail with reference to the accompanying drawings and specific examples. In the description of the present application, the terms "up" and "down" are used in a manner based on normal use of the height adjustment mechanism, such as the orientation or positional relationship shown in FIG. 5, it being understood that these terms are merely for convenience in describing and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present application.

Referring to fig. 1 to 7, in one aspect, the present invention provides a height adjustment mechanism 100, in which the height adjustment mechanism 100 includes a sliding member 10, a base 20, a turntable 30, and a sliding shaft 40. The base 20 includes a housing body 21, and the housing body 21 is formed with a receiving cavity 21a and a sliding groove 21b communicating with the receiving cavity 21 a. The slide groove 21b extends in the height direction of the seat body 21. The slider 10 is located in the accommodation chamber 21 a. The turntable 30 is formed with a spiral track 30 a. The rotary plate 30 is rotatably connected to the seat body 21, and specifically, the rotary plate 30 is rotatably connected to one lateral side of the seat body 21. One end of the sliding shaft 40 is connected with the sliding member 10, and specifically, one end of the sliding shaft 40 is fixedly connected with the sliding member 10; the other end of the sliding shaft 40 is fitted to the spiral rail 30a through the sliding groove 21 b. The turntable 30 rotates to drive the other end of the sliding shaft 40 to move along the spiral track 30 a. Specifically, the turntable 30 rotates to drive the other end of the sliding shaft 40 to slide along the spiral track 30 a. The sliding shaft 40 slides along the sliding groove 21b to drive the sliding member 10 to move linearly along the height direction of the seat 21.

In the view shown in fig. 12, the spiral track 30a in fig. 12 is a track that rotates clockwise. As shown in fig. 5, assuming that the sliding element 10 is located at the lowest position of the seat body 21, the rotating disc 30 is forced to rotate clockwise, during the rotation of the rotating disc 30, the spiral track 30a pushes the sliding shaft 40 to slide upwards along the height direction of the seat body 21, because one end of the sliding shaft 40 is connected with the sliding element 10, the sliding shaft 40 drives the sliding element 10 to slide upwards synchronously, during the clockwise rotation of the rotating disc 30, when the sliding element 10 reaches the target height, the rotating disc 30 stops rotating, because the spiral track 30a has a limit supporting function on the sliding shaft 40 along the height direction of the seat body 21, the sliding shaft 40 and the spiral track 30a cooperate to lock the sliding element 10 at the target height, that is, when the rotating disc 30 stops rotating, the spiral track 30a can lock the sliding element 10 at the target height by self-locking the sliding shaft 40. When the height of the sliding part 10 is increased again, the rotating disc 30 is continuously rotated clockwise, the sliding shaft 40 drives the sliding part 10 to continuously and synchronously slide upwards, of course, in the process of adjusting the height of the sliding part 10, if the height of the sliding part 10 needs to be reduced, the rotating disc 30 can be rotated anticlockwise by applying force, in the process of anticlockwise rotating the rotating disc 30, the spiral track 30a pushes the sliding shaft 40 to slide downwards, the sliding shaft 40 drives the sliding part 10 to synchronously slide downwards, in this way, the height of the sliding part 10 can be reduced, that is, in the process of rotating the rotating disc 30 by applying force, the rotating disc 30 can be rotated clockwise or the rotating disc 30 can be rotated anticlockwise at any time, and thus, the height of the sliding part 10 can. The rotary table 30 is adopted to rotate to adjust the height of the sliding part 10, the structure is simple, self-locking is realized through the sliding shaft 40 and the spiral track 30a, the sliding part 10 is limited to be at the target height, the position change of the sliding part 10 under the conditions of vibration, shaking and the like is avoided, and stepless adjustment of the height of the sliding part 10 can be realized.

It is understood that the spiral track 30a may be a track rotating in a clockwise direction or a track rotating in a counterclockwise direction, and the rotating direction of the spiral track 30a is not limited. When the spiral track 30a is a track rotated in a counterclockwise direction, the turntable 30 is rotated clockwise to drive the slider 10 to slide downward, and the turntable 30 is rotated counterclockwise to drive the slider 10 to slide upward.

It should be noted that the transverse direction of the seat body 21 refers to a direction intersecting with the height direction of the seat body 21, and the transverse direction of the seat body 21 may be perpendicular to the height direction of the seat body 21. For example, the transverse direction of the seat body 21 may be the length direction of the seat body 21, or may be the width direction of the seat body 21.

In one embodiment, the spiral track 30a is a spiral groove, and referring to fig. 5, the outer wall surface of the sliding shaft 40 is in contact with and engaged with the groove wall surface of the spiral track 30 a. By such a design, the sliding shaft 40 is prevented from shaking in the spiral track 30a by reducing the gap between the outer wall surface of the sliding shaft 40 and the groove wall surface of the spiral track 30a, thereby preventing the sliding member 10 from shaking, so that the sliding shaft 40 and the spiral track 30a are better self-locked. It will be understood that the outer wall surface of the slide shaft 40 is not formed to be closely fitted with the groove wall surface of the spiral track 30a to prevent the groove wall surface of the spiral track 30a from restricting the slide shaft 40 from sliding.

In an embodiment, referring to fig. 6 and 7, the rotary disc 30 is slidably disposed along the transverse direction of the seat body 21. That is, the rotary plate 30 can move linearly in the transverse direction of the seat body 21. The height adjusting mechanism 100 includes a locking pin 50 and a first elastic member 60 disposed in a transverse direction of the seat body 21. One end of the locking pin 50 is formed with a locking part 51 and an unlocking part 52. The seat body 21 is formed with a first through hole 21 c. The outer wall of the slider 10 is formed with a plurality of locking grooves 10a spaced apart in the height direction of the holder body 21. The lock portion 51 and the unlock portion 52 can be inserted into the lock groove 10a through the first through hole 21 c. An end of the locking pin 50 remote from the locking portion 51 abuts or is connected to the dial 30. The turntable 30 is close to the seat body 21 to drive the unlocking portion 52 to be located in the locking groove 10a, the first elastic member 60 drives the locking portion 51 to be located in the locking groove 10a, the slider 10 can drive the locking pin 50 to do linear reciprocating motion along the height direction of the seat body 21 in the state that the unlocking portion 52 is located in the locking groove 10a, and the locking pin 50 locks the slider 10 at the current height in the state that the locking portion 51 is located in the locking groove 10 a.

It can be understood that the rotation disc 30 close to the seat body 21 drives the unlocking portion 52 to be located in the locking groove 10a, and the first elastic member 60 drives the locking portion 51 to be located in the locking groove 10a, so that the locking portion 51 is located on the side of the unlocking portion 52 far from the rotation disc 30.

When the height of the sliding member 10 needs to be adjusted, pressure is applied to the rotary disc 30, the rotary disc 30 approaches the seat body 21 to drive the locking portion 51 to be separated from the locking groove 10a, the unlocking portion 52 extends into the locking groove 10a, the rotary disc 30 can be rotated clockwise or counterclockwise under the condition that the unlocking portion 52 is located in the locking groove 10a, at this time, the spiral track 30a drives the sliding shaft 40 to slide along the height direction of the seat body 21 to drive the sliding member 10 to slide, the sliding member 10 can drive the locking pin 50 to slide synchronously along the height direction of the seat body 21, when the target height is adjusted, the force applied to the rotary disc 30 can be cancelled, at this time, the rotary disc 30 is in a free state, that is, the rotary disc 30 is neither subjected to inward pressure perpendicular to the seat body 21 nor to torque applied from the outside, and in this state, the first elastic member 60 recovers elastic deformation to drive the locking portion 51, in this way, the slider 10 is further locked at the current height by the locking pin 50 on the basis of the self-locking of the spiral passage with the slide shaft 40, so that the slider 10 is more firmly locked at the current height by the double locking.

In another embodiment, not shown, the other structure is the same as the above solution, except that the rotation disc 30 is far away from the seat body 21 to drive the unlocking portion 52 to be located in the locking groove 10 a. In this case, the rotary plate 30 is connected to the locking pin 50, when the height of the slider 10 needs to be adjusted, a pulling force perpendicular to the seat body 21 is applied to the rotary plate 30, the rotary plate 30 moves away from the seat body 21 to drive the locking portion 51 to be separated from the locking groove 10a, and the unlocking portion 52 extends into the locking groove 10 a. The principle of locking and unlocking the locking portion 51 and the unlocking portion 52 is the same as the upper level, and the description thereof is omitted.

It can be understood that the unlocking portion 52 is forced to be located in the locking groove 10a by the rotary disc 30 away from the seat body 21, the locking portion 51 is forced to be located in the locking groove 10a by the first elastic member 60, and the locking portion 51 is located on the side of the unlocking portion 52 close to the rotary disc 30.

In an embodiment, referring to fig. 5, the locking groove 10a is formed with a first arc surface, and the locking portion 51 is formed with a second arc surface, which is in press-fit with the first arc surface to lock the locking portion 51 with the locking groove 10 a. Through locking groove 10a and locking portion 51's slight deformation to make first arc surface and second arc surface form great area of contact, locking portion 51 is better with locking groove 10a locking effect, avoids slider 10 to rock.

In some embodiments, the unlocking part 52 and the locking part 51 are both cylindrical, the diameter of the unlocking part 52 is smaller than that of the locking part 51, and the outer wall surface of the locking part 51 is a second arc surface. Since the diameter of the unlocking portion 52 is smaller than that of the locking portion 51, the outer wall surface of the unlocking portion 52 cannot form a press fit with the first arc surface of the locking groove 10a, so that the unlocking portion 52 is conveniently separated from the locking groove 10a, and thus the unlocking portion 52 does not interfere with the locking grooves 10a when moving, and the locking pin 50 can stably move along the vertical direction along with the slider 10. Further, the plurality of locking grooves 10a may be waved, that is, the connection surface between the plurality of locking grooves 10a is also a curved surface, so that the unlocking part 52 is easily switched between the plurality of locking grooves 10 a.

In some embodiments, the locking pin 50 is cylindrical, and a portion of the locking pin 50 is milled flat to form the unlocking portion 52, so long as the unlocking portion 52 can be disengaged from the locking groove 10 a. In other embodiments, the cross-section of the locking part 51 may also be polygonal, such as triangular, quadrangular, pentagonal, etc., and the locking part 51 cooperates with the locking groove 10a to lock the locking part 51 in the locking groove 10a

In one embodiment, referring to fig. 3 and 4, the base 20 includes a mounting seat 22 connected to a seat body 21. Specifically, the mounting seat 22 is fixedly connected to the seat body 21. The mounting seat 22 is located between the seat body 21 and the rotary table 30, the mounting seat 22 is formed with a mounting cavity, and one end of the locking pin 50 away from the locking part 51 passes through the mounting cavity to abut against or be connected with the rotary table 30. The locking pin 50 is able to slide within the mounting 22, further securing the locking pin 50 with the mounting 22 and preventing the locking pin 50 from wobbling.

In an embodiment, referring to fig. 6, 7 and 9, the first elastic member 60 is located in the installation cavity, the first elastic member 60 is sleeved on the locking pin 50, the locking pin 50 is formed with a step portion 53, and the step portion 53 is located between the first elastic member 60 and the turntable 30. In a specific embodiment, the first elastic element 60 is an elastic compression element, such as a compression spring, specifically, one end of the elastic compression element abuts against or is fixedly connected to the inner wall of the installation cavity, the other end of the elastic compression element abuts against or is fixedly connected to a step surface of the step portion 53 away from the turntable 30, the turntable 30 is close to the seat body 21 to drive the elastic compression element to generate compression deformation, and when the turntable 30 is in a free state, the elastic compression element drives the locking portion 51 to be located in the locking groove 10a by restoring the compression deformation. The first elastic element 60 may also be an elastic stretching element, such as a tension spring, specifically, one end of the elastic stretching element may be connected to the inner wall of the mounting cavity, the other end of the elastic stretching element is fixedly connected or abutted to the step surface of the step portion 53 facing the turntable 30, the turntable 30 is far away from the seat body 21 to drive the elastic stretching element to generate stretching deformation, and when the turntable 30 is in a free state, the elastic stretching element drives the locking portion 51 to be locked in the locking groove 10a by restoring the stretching deformation.

In another embodiment, the first elastic member 60 is located between the step portion 53 and the turntable 30. Specifically, the first elastic member 60 is an elastic compression member, one end of the elastic compression member abuts against or is fixedly connected with the inner wall of the installation cavity, and the other end of the elastic compression member abuts against or is fixedly connected with the step surface of the step portion 53 departing from the turntable 30. The rotation plate 30 is far from the seat body 21 to drive the elastic compression piece to generate compression deformation, and the elastic compression piece drives the locking part 51 to be locked in the locking groove 10a by restoring the compression deformation under the condition that the rotation plate 30 is in a free state. First elastic component 60 also can be the tensile piece of elasticity, and is concrete, the one end of the tensile piece of elasticity and the inner wall fixed connection of installation cavity, the other end and the step face fixed connection that step 53 are close to carousel 30 of the tensile piece of elasticity, carousel 30 is close to pedestal 21 and orders about the tensile piece of elasticity to produce tensile deformation, and under carousel 30 is in the state of freedom, the tensile piece of elasticity orders about locking portion 51 to lock in locking groove 10a through recovering tensile deformation.

In the above embodiment, the first elastic member 60 is located in the installation cavity, and the movement of the first elastic member 60 is protected from interference by the installation cavity. In addition, the first elastic member 60 is sleeved on the locking pin 50, and the locking pin 50 is utilized to play a role in stabilizing the first elastic member 60, so that the elastic deformation of the first elastic member 60 is along the axial direction of the locking pin 50, and the locking pin 50 is driven to reciprocate along the straight line of the axial direction more accurately.

In an embodiment not shown, the rotary disc 30 is slidably disposed along the transverse direction of the seat body 21. That is, the rotary plate 30 can move linearly in the transverse direction of the seat body 21. The height adjusting mechanism 100 includes a positioning pin and a second elastic member, which are transversely disposed along the seat body 21, the seat body 21 is formed with a second through hole, the outer wall of the sliding member 10 is formed with a plurality of locking holes spaced along the height direction of the seat body 21, one end of the positioning pin extends into the locking hole through the second through hole, and the other end of the positioning pin is connected to the turntable 30. Specifically, the other end of the positioning pin is fixedly connected to the turntable 30. The turntable 30 is far away from the seat body 21 to drive the positioning pin to be separated from the locking hole, and the second elastic piece drives the positioning pin to extend into the locking hole. Through the cooperation of locating pin and locking hole, will slide 10 lock at different heights, simple structure.

In some embodiments, a second resilient member is located within the mounting cavity of the mounting block 22, the second resilient member being sleeved over a locating pin formed with a protrusion. In a specific embodiment, the second elastic component is the elastic stretching component, for example, the extension spring, it is concrete, can be the one end of the elastic stretching component and the interior wall connection of installation cavity, the other end and the terminal surface fixed connection that the bulge deviates from carousel 30 of the elastic stretching component, also can be the one end of the elastic stretching component and the interior wall connection of installation cavity, the other end and the bulge of the elastic stretching component are towards the terminal surface butt or the fixed connection of carousel 30, carousel 30 is kept away from pedestal 21 and is ordered about the elastic stretching component and produce tensile deformation, be in under the state of freedom at carousel 30, the elastic stretching component orders about the locating pin through resumeing tensile deformation and stretches into in the locking hole. In another specific embodiment, the second elastic member is an elastic compression member, such as a compression spring, specifically, one end of the elastic compression member may abut against or be fixedly connected to an inner wall of the mounting cavity, the other end of the elastic compression member abuts against or is fixedly connected to an end surface of the protruding portion facing the turntable 30, or one end of the elastic compression member may abut against or be fixedly connected to the inner wall of the mounting cavity, the other end of the elastic compression member and the step portion 53 are fixedly connected to a step surface of the turntable 30, the turntable 30 may be far away from the base body 21 to drive the elastic compression member to generate compression deformation, and when the turntable 30 is in a free state, the elastic compression member drives the positioning pin to extend into the locking hole by restoring the compression deformation.

In an embodiment, referring to fig. 4 to 7, the seat body 21 is formed with a guide portion 211 extending along a height direction of the seat body 21, the outer wall of the sliding member 10 is formed with a sliding portion 11, the sliding portion 11 is disposed corresponding to the guide portion 211, and the sliding portion 11 can move linearly along the guide portion 211. Under the guiding action of the sliding part 11 and the guiding part 211, the sliding part 10 can move linearly along the height direction of the seat body 21, and the sliding part 10 is prevented from deviating from the sliding track.

In an embodiment, referring to fig. 4 to 7, one of the sliding portion 11 and the guiding portion 211 is a guide rail or a roller, and the other of the sliding portion 11 and the guiding portion 211 is a sliding slot. That is, the sliding portion 11 may be a guide rail, and the guide portion 211 may be a chute; the sliding part 11 may be a sliding slot, and the guiding part 211 may be a guide rail, that is, the sliding part 11 slides along the guiding part 211 to make the sliding part 11 move linearly along the guiding part 211; the sliding part 11 can be a roller, and the guide part 211 can be a sliding chute; the sliding portion 11 may be a sliding slot, and the guide portion 211 may be a roller, that is, a roller that rolls to make the sliding portion 11 move linearly along the guide portion 211. In addition, by the cooperation of the guide rail or the roller with the slide groove, the friction force between the sliding portion 11 and the guide portion 211 is reduced, so that the relative sliding between the sliding member 10 and the seat body 21 is smoother.

In order to better perform the guiding function and avoid the sliding member 10 deviating from the motion track, in an embodiment, please refer to fig. 6 and 7, the number of the guiding portion 211 and the sliding portion 11 is plural.

It can be understood that, since the guide portions 211 and the sliding portions 11 are correspondingly disposed, the number of the guide portions 211 and the number of the sliding portions 11 are the same, for example, referring to fig. 7, if the number of the guide portions 211 is 4, the number of the sliding portions 11 is also 4. Of course, the number of the guide portions 211 and the sliding portions 11 may be 1, 2, 3, 5, etc., and the specific number of the guide portions 211 is not limited in the present application. When the guide portion 211 or the sliding portion 11 is a roller, 1 or more rollers jointly form one guide portion 211 or one sliding portion 11, for example, the guide portion 211 and the sliding portion 11 are correspondingly disposed, and 1 guide portion 211 may be formed by 1 or more rollers, and the sliding portion 11 is 1 sliding groove correspondingly disposed to 1 or more rollers.

In an embodiment, referring to fig. 1, 12 and 13, the rotating disc 30 includes a disc body 31 and a force applying portion 32 connected to the disc body 31, the disc body 31 is rotatably connected to the seat 21, a spiral track 30a is formed on the disc body 31, and the force applying portion 32 is disposed on a side of the disc body 31 away from the seat 21. The user can conveniently hold the force application part 32 to apply force.

In one embodiment, the force application portion 32 has an elongated shape extending in a radial direction of the tray body 31, so that it is convenient for a user to rotate the tray body 31 by holding the force application portion 32 with a thumb and a forefinger.

In another embodiment, the user may also apply force by directly grasping the tray 31.

In an embodiment, please refer to fig. 1 to 8, the base 20 includes a tray seat 23, a tray cover 24 and a rotating shaft 25, the tray cover 24 is formed with an avoiding opening avoiding the force application portion 32, the tray seat 23 includes a seat plate 231 and an annular rib plate 232, the seat plate 231 is connected with the seat body 21, the rotating shaft 25 is connected with the seat body 21, specifically, the seat plate 231 is fixedly connected with the seat body 21, the rotating shaft 25 passes through the seat plate 231, one side of the annular rib plate 232 is connected with the seat plate 231, the tray body 31 is located in a space enclosed by the annular rib plate 232 and the seat plate 231, the tray body 31 is pivoted with the rotating shaft 25, and the tray cover 24 is covered on one side of. The disk body 31 is pressed in the space formed by the disk seat 23 through the disk cover 24, and the disk body 31 is prevented from being separated from the rotating shaft 25 under the condition of not interfering the rotation of the disk body 31. Preferably, the shaft 25 may be pivotally connected to the geometric center of the disc 31. Thus, the disk body 31 is stressed evenly.

It will be appreciated that a counterbore may be formed in the disc seat 23 through which the locking pin 50 passes to abut the disc 31 within the disc seat 23. A relief area may be formed in the disk seat 23, for example, a notch may be formed in the disk seat 23, and the locking pin 50 may abut against the disk 31 in the disk seat 23 through the relief area.

In order to reduce the friction between the shaft 25 and the disc 31, in one embodiment, please refer to fig. 1 and 6, the height adjustment mechanism 100 includes a bushing sleeved on the shaft 25. Further, the sleeve may be made of a low-friction wear-resistant polymer material, such as polytetrafluoroethylene.

In some embodiments, the components of the height adjustment mechanism 100 may be plastic, that is, some of the components of the height adjustment mechanism 100 may be made of plastic, so that the weight of the height adjustment mechanism 100 can be reduced. Of course, the components of the height adjustment mechanism 100 may also be metal parts, and thus have strong structural strength.

In some embodiments, the height adjustment mechanism 100 includes two dials 30, two sliding shafts 40, and a transmission mechanism. The two rotating discs 30 are disposed on two opposite sides of the seat body 21, the two sliding shafts 40 are disposed on two opposite sides of the sliding member 10, the two sliding shafts 40 are respectively located in the spiral tracks 30a of the two rotating discs 30, and the transmission mechanism is used for connecting the two rotating discs 30 to drive the two rotating discs 30 to rotate synchronously. Due to the fact that the turntables 30 are arranged on two sides of the sliding piece 10, force can be applied together to drive the sliding shaft 40 to move along the spiral track 30a, and therefore the force applied to the sliding piece 10 is balanced, and the sliding shaft 40 is prevented from deviating to be clamped in the spiral track 30 a. In a specific embodiment, the disk 31 has teeth formed on the circumference thereof, the transmission mechanism includes a connecting shaft and two gears, the two gears are respectively engaged with the teeth of the two disks, the connecting shaft is disposed along the axial direction of the disks, two of the connecting shaft are respectively fixedly connected to the two gears, and the driving of the connecting shaft drives the gears to rotate, so as to drive the two disks to rotate synchronously.

Referring to fig. 5 and 7, another aspect of the present invention provides a lawn mower including a mower body, a deck motor 200, a deck, and a height adjustment mechanism 100 in any one of the above embodiments. The base 20 is disposed on the body. The slider 10 is formed with a cavity 10b, a part of the cutterhead motor 200 is located in the cavity 10b and connected with the slider 10, a driving shaft of the cutterhead motor 200 is extended from the bottom of the slider 10 and connected with the cutterhead, and the turntable 30 is rotated to adjust the height of the cutterhead from the ground. The height of the cutterhead is adjusted by rotating the rotary disc 30 to adjust the height of the sliding piece 10 from the ground, so that the operation is simple and convenient.

Specifically, the slider 10 includes a slider body formed with a cavity 10b having an open top, and a cover plate covering the open top of the cavity 10 b. The cover plate and the sliding body can be welded or detachably connected, for example, clamped or connected through bolts.

In an embodiment, referring to fig. 1 to 8, a third through hole communicated with the accommodating cavity 21a is formed at the bottom of the seat body 21, and the sliding member 10 can extend out of the third through hole. In this way, not only the height of the accommodating chamber 21a and thus the volume of the base 20 can be reduced, but also the height of the cutterhead from the ground can be conveniently adjusted by extending the slider 10 out of the third through hole, and thus the length of the driving shaft of the cutterhead motor 200 can be reduced.

In an embodiment not shown, the mower includes a travel motor, a travel mechanism, and a controller. The walking mechanism is rotationally connected with the machine body, and the walking motor is used for driving the walking mechanism to move. The controller is used for controlling the running motor and the cutter head motor 200 to operate.

The running gear can be a tire or a crawler. The controller can send out control signal control walking motor drive running gear motion, and the controller also can control the operation of blade disc motor 200, that is to say, the lawn mower can be intelligent lawn mower also known as mowing robot.

The base 20 may be fixedly connected to the machine body, may be welded, or may be detachably connected, such as clamped or bolted.

Specifically, the base 20 includes a flange 26 fixedly connected to the base body 21. The flange 26 is bolted to the housing to facilitate detachable attachment of the base 20 to the housing. Specifically, the flange 26 is fixedly connected to the bottom of the seat body 21.

The lawn mower of the embodiment of the application can further comprise a turntable motor, and the turntable motor is used for driving the turntable to rotate. The driving shaft of the turntable motor can be fixedly connected with the turntable. The driving shaft of the turntable motor rotates to drive the turntable to synchronously rotate. The controller can control the turntable motor to operate. Thus, the automation degree is improved.

The lawn mower of the embodiment of the application can further comprise a control panel and a display screen which are arranged on the mower body. The control panel is electrically connected with the controller and is used for controlling the controller to send first control information for controlling the cutter motor, second control information for controlling the turntable motor and third control information for controlling the walking motor. The display screen is used for displaying the working states of the cutter head motor, the turntable motor and the walking motor and/or the information of the height of the cutter head from the ground and the like. And the cutter motor starts, stops and adjusts the speed according to the first control information. And the turntable motor starts, stops and adjusts the speed according to the second control information. And the walking motor starts, stops and adjusts the speed according to the third control information. Specifically, the control panel may be a physical button or a touch panel.

The lawn mower provided by the embodiment of the application can comprise a battery for supplying power to the cutter head motor, the turntable motor and/or the walking motor. The battery may be a rechargeable battery or a non-rechargeable battery. In another embodiment, the mower comprises a power cord electrically connected with the cutterhead motor, the turntable motor and/or the walking motor, and the power cord can be communicated with an external power source so as to supply power to the cutterhead motor, the turntable motor and/or the walking motor.

In some embodiments, the present application provides a mowing system, including the mower and the terminal in any one of the above embodiments. The terminal sends operation information to the mower, and the mower receives the operation information and controls the controller to send the first control information, the second control information and/or the third control information. In some embodiments, the mowing system may further include a server, and the terminal sends the operation information to the server, and the server receives and sends the operation information to the mower.

Specifically, the mower comprises a communication module, the mower can receive operation information of the terminal through the communication module, and the controller of the mower sends the first control information and/or the second control information according to the operation information. In some embodiments, the lawn mower may also send the operation information to the server through the communication module, and the server sends the received operation information to the terminal. Here, the communication module may include, but is not limited to, one or more of a bluetooth module, a Wireless Fidelity (WIFI) module, a fourth or fifth Generation (4th Generation/5th Generation, 4G/5G) communication module, an infrared module, and other Wireless data communication modules, and may further include one or more of a Serial communication module, a Universal Serial Bus (USB) module, and other wired data communication modules.

The terminal in the embodiment of the application can be a mobile terminal or a fixed terminal, wherein the mobile terminal includes but is not limited to a mobile phone, a tablet computer, a notebook computer or an intelligent watch; the fixed terminal includes but is not limited to a desktop computer or a smart home device. Illustratively, the smart home device may be a smart tv, a smart cleaning robot, a smart refrigerator, or the like. Any terminal capable of running the computer program may issue the above operation information.

The height adjusting mechanism 100 provided by the embodiment of the application can be used for not only a mower, but also other devices needing height adjustment.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (11)

1. A height adjustment mechanism, comprising:

a slider;

the base comprises a base body, wherein an accommodating cavity and a sliding groove communicated with the accommodating cavity are formed in the base body, the sliding groove extends along the height direction of the base body, and the sliding part is positioned in the accommodating cavity;

the rotary table is provided with a spiral track and is rotationally connected with the base body; and

one end of the sliding shaft is connected with the sliding part, the other end of the sliding shaft penetrates through the sliding groove to be matched with the spiral track, the turntable rotates to drive the other end of the sliding shaft to move along the spiral track, and the sliding shaft slides along the sliding groove to drive the sliding part to move linearly along the height direction of the seat body.

2. The height adjusting mechanism according to claim 1, wherein the spiral track is a spiral groove, and an outer wall surface of the slide shaft is in contact engagement with a groove wall surface of the spiral track.

3. The height adjusting mechanism according to claim 1, wherein the rotary plate is slidably disposed along a transverse direction of the base body, the height adjusting mechanism includes a locking pin and a first elastic member disposed along the transverse direction of the base body, a locking portion and an unlocking portion are formed at one end of the locking pin, a first through hole is formed in the base body, a plurality of locking grooves are formed in an outer wall of the sliding member and spaced apart along a height direction of the base body, the locking portion and the unlocking portion can extend into the locking grooves through the first through hole, and one end of the locking pin, which is far away from the locking portion, abuts against or is connected to the rotary plate.

4. The height adjustment mechanism according to claim 3, wherein the locking groove is formed with a first arc surface, and the locking portion is formed with a second arc surface that is press-fitted against the first arc surface to lock the locking portion with the locking groove.

5. The height adjusting mechanism according to claim 3, wherein the base includes a mounting seat connected to the seat body, the mounting seat is located between the seat body and the turntable, the mounting seat is formed with a mounting cavity, and one end of the locking pin, which is far away from the locking portion, passes through the mounting cavity to abut against or be connected with the turntable.

6. The height adjustment mechanism of claim 5, wherein the first elastic member is located in the mounting cavity, the first elastic member is sleeved on the locking pin, the locking pin is formed with a step portion, and the step portion is located between the first elastic member and the rotary plate or the first elastic member is located between the step portion and the rotary plate.

7. The height adjusting mechanism according to claim 1, wherein the rotating disc is slidably disposed along a transverse direction of the base, the height adjusting mechanism includes a positioning pin and a second elastic member disposed along the transverse direction of the base, the base is formed with a second through hole, the outer wall of the sliding member is formed with a plurality of locking holes disposed at intervals along a height direction of the base, one end of the positioning pin extends into the locking hole through the second through hole, the other end of the positioning pin is connected to the rotating disc, the rotating disc is away from the base to drive the positioning pin to disengage from the locking hole, and the second elastic member drives the positioning pin to extend into the locking hole.

8. The height adjusting mechanism according to any one of claims 1 to 7, wherein the base body is formed with a guide portion extending in a height direction of the base body, and the outer wall of the slider is formed with a slide portion provided corresponding to the guide portion, the slide portion being capable of linear movement along the guide portion.

9. The height adjusting mechanism according to any one of claims 1 to 7, wherein the turntable comprises a turntable body and a force application portion connected with the turntable body, the turntable body is rotatably connected with the base body, the spiral track is formed on the turntable body, and the force application portion is arranged on one side of the turntable body, which is far away from the base body.

10. The height adjusting mechanism according to claim 9, wherein the base includes a tray, a tray cover and a rotating shaft, the tray cover is formed with an avoiding opening for avoiding the force application portion, the tray includes a seat plate and an annular rib plate, the seat plate is connected with the seat body, the rotating shaft passes through the seat plate, one side of the annular rib plate is connected with the seat plate, the tray body is located in a space surrounded by the annular rib plate and the seat plate, the tray body is pivoted with the rotating shaft, and the tray cover covers one side of the annular rib plate departing from the seat plate.

11. A lawn mower, comprising:

a body;

a cutter motor;

a cutter head; and

the height adjusting mechanism of any one of claims 1 to 10, wherein the base is disposed on the machine body, the slider forms a cavity, a portion of the cutter motor is disposed in the cavity and connected to the slider, a driving shaft of the cutter motor extends from a bottom of the slider and is connected to the cutter, and the turntable rotates to adjust a height of the cutter from the ground.

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