CN111543168A - Height adjusting mechanism and mower - Google Patents

Abstract

The embodiment of the application provides a height adjustment mechanism, including slider, base, elastic component and locking piece. The slider is formed with a closed-loop-structured sliding groove. The slide groove has a plurality of locking grooves arranged at intervals in order in a height direction of the slider. The base is formed with open-topped holding chamber, and the slider is located and holds the intracavity, and the slider can be followed the direction of height of base and made straight reciprocating motion. The elastic member exerts an upward force on the slider. The locking piece comprises a rotating body and a locking rod fixedly connected with the rotating body, the rotating body is pivoted with the base, and the locking rod is slidably arranged in the sliding groove and locks the sliding piece at a plurality of height gears. The application provides a height adjustment mechanism simple structure, through applying decurrent effort in order to adjust the slider height to the slider, easy and simple to handle, the user of being convenient for uses. 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

While users often have different requirements with respect to the height to which they can mow, in the prior art, the height to which they can mow is controlled by adjusting the height of the cutter disc from the ground, and hence mowers are required to have a height adjustment mechanism for adjusting the height of the cutter disc from the ground.

Disclosure of Invention

In view of this, the present application is directed to a height adjustment mechanism and a lawn mower with the height adjustment mechanism. In order to achieve the above effect, the technical solution of the embodiment of the present application is implemented as follows:

the embodiment of the application provides a height adjustment mechanism, includes:

a slider formed with a sliding groove of a closed loop structure having a plurality of locking grooves arranged at intervals in order in a height direction of the slider;

the sliding part is positioned in the accommodating cavity and can do linear reciprocating motion along the height direction of the base;

an elastic member that applies an upward force to the slider; and

the locking piece comprises a rotating body and a locking rod fixedly connected with the rotating body, the rotating body is pivoted with the base, and the locking rod is slidably arranged in the sliding groove and locks the sliding piece at a plurality of height gears.

Furthermore, the rotating body is a torsion spring pivoted with the base, a first end of the torsion spring is connected with the locking rod, the locking rod is bent relative to the torsion spring and extends into the sliding groove, and a second end of the torsion spring is fixed on the base.

Furthermore, the rotating body comprises a rotating part and an elastic part, the rotating part is pivoted with the base, the elastic part is connected with the rotating part and the base, and the elastic part drives the rotating part to return to the center.

Furthermore, the sliding grooves are formed in two opposite sides of the sliding part, the number of the locking parts is two, and the two locking parts are arranged on the two opposite sides of the sliding part and correspond to the two sliding grooves one to one.

Furthermore, the locking piece is located outside the base, a rotation groove extending along the swinging direction of the rotator is formed in the base, and the locking rod extends into the sliding groove through the rotation groove.

Further, the height adjusting mechanism comprises a cover connected with the base, and the cover is covered around the locking piece.

Further, the cover is detachably connected with the base.

Further, height adjustment mechanism include with the guide post that the base is connected, the guide post is followed the direction of height of slider extends, the guide post is located the horizontal one side of slider, the slider is formed with towards the convex bulge of guide post, the bulge cover is located on the guide post, the bulge can be followed the guide post is straight reciprocating motion.

Furthermore, the elastic piece is sleeved on the guide post,

the elastic part is an elastic compression part which is supported below the protruding part, or the elastic part is an elastic stretching part which is positioned above the protruding part.

Further, the height adjusting mechanism further comprises a shaft sleeve, and the protruding portion is sleeved on the guide post through the shaft sleeve.

Further, the base includes apron and pedestal, the pedestal is formed with hold chamber and open-topped location chamber, hold the chamber with location chamber intercommunication, the location chamber is located the horizontal one side of slider, the guide post with the bulge all is located the location intracavity, the apron lid closes the opening in location chamber.

Further, the apron includes the plate body and orientation location intracavity protrusion in the protruding muscle of plate body, protruding muscle is followed the circumference of reference column extends in order to form the holding tank, the plate body lid closes the opening in location chamber, the top of guide post is located in the holding tank.

Further, a plurality of locking grooves are arranged in a zigzag communication mode.

Further, the sliding groove includes a plurality of transition grooves and a reset groove, the locking groove includes first groove section and second groove section, the transition groove includes third groove section and fourth groove section, first groove section with the third groove section is followed the transverse separation setting of slider, first groove section with the slope of third groove section upwards extends, first groove section second groove section third groove section fourth groove section communicates in proper order, and is adjacent the first groove section of locking groove with the fourth groove section intercommunication of transition groove, reset groove intercommunication is located the highest position the first groove section of locking groove and the lowest position the first groove section of locking groove.

Further, the first, second, third, and fourth slot segments are linear slots;

or the first groove section, the second groove section, the third groove section and the fourth groove section are curved grooves.

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

a body;

a drive motor;

a cutter disc; 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, driving motor's part is located in the cavity and with the slider is connected, driving motor's drive shaft is followed the bottom of slider stretches out and with the cutting cutter dish is connected, the slider is followed straight reciprocating motion is in order to adjust to the direction of height of base the terrain clearance of cutting cutter dish.

The height adjustment mechanism that this application embodiment provided, simple structure, through applying decurrent effort to the slider, the height of the mode regulation slider of pressing down the slider promptly, easy and simple to handle, the user of being convenient for uses. The embodiment of the application also provides a mower which is provided with 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 cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

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

fig. 8 is an enlarged view at C in fig. 6.

Description of the reference numerals

A height adjustment mechanism 100; a slider 10; a slide groove 10 a; a locking groove 11 a; a first groove segment 111 a; a second groove segment 112 a; a transition groove 12 a; a third groove segment 121 a; a fourth slot segment 122 a; a reset groove 13 a; a projection 11; a base 20; the accommodation chamber 20 a; a cover plate 21; a plate body 211; a rib 212; a base 22; the positioning cavity 22 a; a rotation groove 20 b; an elastic member 30; a locking member 40; a swivel 41; a locking lever 42; a cover 50; a guide post 60; a shaft sleeve 70; the motor 200 is driven.

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 orientation or positional relationship is based on the state of normal use of the height adjustment mechanism, the lateral direction of the slider means the direction intersecting the height direction of the slider, the height direction of the slider coincides with the height direction of the base, the top direction of the slider is the upper direction, and the bottom direction of the slider is the lower direction, it being understood that these orientation terms are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 7, in one aspect, the present embodiment provides a height adjusting mechanism 100, where the height adjusting mechanism 100 includes a sliding member 10, a base 20, an elastic member 30, and a locking member 40. The slider 10 is formed with a slide groove 10a of a closed loop structure. The slide groove 10a has a plurality of locking grooves 11a arranged at intervals in order in the height direction of the slider 10. The base 20 is formed with a receiving cavity 20a opened at the top, the slider 10 is located in the receiving cavity 20a, and the slider 10 can linearly reciprocate in the height direction of the base 20. The elastic member 30 applies an upward force to the slider 10. The locking member 40 includes a rotator 41 and a locking lever 42 fixedly connected to the rotator 41. The rotator 41 is pivotally connected to the base 20, and the locking lever 42 is slidably disposed in the sliding groove 10a and locks the slider 10 at a plurality of height positions. Specifically, the locking lever 42 is locked in the locking groove 11a to lock the slider 10 at the current height, and during the downward sliding of the slider 10, the rotator 41 is reciprocally swung under the combined action of the slider 10 and the elastic member 30 to drive the locking lever 42 to be sequentially switched in the plurality of locking grooves 11a to lock the slider 10 at the plurality of height gears.

Assuming that the locking lever 42 is locked in the locking groove 11a at the lowest position when the slider 10 is at the lowest position, the resilient member 30 applies an upward force to the slider 10, and the locking lever 42 is locked in the locking groove 11a applying a downward force to the slider 10, the slider 10 can be maintained at the lowest position by the cooperation of the resilient member 30 and the locking lever 42. When the height of the sliding element 10 needs to be adjusted, a downward acting force is applied to the sliding element 10, the sliding element 10 moves downwards against the elastic force of the elastic element 30, during the downward sliding of the sliding element 10, the combined force of the sliding element 10 and the elastic element 30 drives the locking rod 42 to slide along the sliding groove 10a, the locking rod 42 is separated from the locking groove 11a at the lowest position, the combined force of the sliding element 10 and the elastic element 30 is transmitted to the rotator 41 through the locking rod 42, the rotator 41 deviates from the swinging center and rotates for a set angle in a first direction, the rotator 41 generates a torque, at the moment, the downward acting force applied to the sliding element 10 is reduced or the downward acting force applied to the sliding element 10 is cancelled, at the moment, the torque of the rotator 41 is larger than the combined force of the sliding element 10 and the elastic element 30, the rotator 41 rotates in a direction opposite to the first direction, the rotator 41 drives the locking rod 42 to, the rotator 41 is restored to the swing center and the locking lever 42 enters the locking groove 11a at the next highest position. When the slider 10 is in a free state, that is, in addition to the weight of the slider 10, without applying a downward force to the slider 10, the slider 10 can be maintained at the next highest position by the cooperation of the elastic member 30 and the locking lever 42. For convenience of presentation, the locking groove 11a is defined in a direction from bottom to top, the locking groove 11a at the lowest position is the first-stage locking groove 11a, the locking groove 11a at the second highest position is the second-stage locking groove 11a, the locking groove 11a above the second highest position is the third-stage locking groove 11a, the locking groove 11a above the third-stage locking groove 11a is the fourth-stage locking groove 11a, the fourth-stage locking groove 11a is directly communicated with the first-stage locking groove 11a, the locking rod 42 is separated from the first-stage locking groove 11a according to the entering of the first-stage locking groove 11a, enters the second-stage locking groove 11a, the second-stage locking groove 11a is separated, the third-stage locking groove 11a is separated, the fourth-stage locking groove 11a is entered. That is, the locking lever 42 sequentially enters the locking groove 11a at the next highest position from the locking groove 11a at the lowest position, and therefore, if it is necessary to continue to raise the position of the slider 10, a downward force is applied again to the slider 10, the locking lever 42, and the rotator 41 repeat the above-described movement process, the locking pieces 40 sequentially enter the plurality of locking grooves 11a arranged in the height direction of the slider in the order from the bottom to the top, and the slider 10 sequentially rises until the slider 10 sequentially rises to the highest position.

In a state where the slider 10 is located at the uppermost position, a downward force is applied to the slider 10, and since the sliding groove 10a has a closed loop structure, the uppermost locking groove 11a and the lowermost locking groove 11a are directly communicated, that is, the uppermost locking groove 11a and the lowermost locking groove 11a are not only indirectly communicated by other locking grooves 11a located therebetween, but also directly communicated by avoiding other locking grooves 11a located therebetween, for example, in fig. 6, the fourth-order locking groove 11a and the first-order locking groove 11a are directly communicated. Since the locking lever 42 is locked in the locking groove 11a under the combined action of the locking lever 42 and the elastic member 30, the locking lever 42 cannot be disengaged from the locking groove 11a at the current height and enter the locking groove 11a below the locking groove 11a at the current height during the downward sliding of the slider 10, and the locking lever 42 cannot be disengaged from the second-level locking groove 11a and enter the first-level locking groove 11a during the downward sliding of the slider 10. Therefore, when a downward force is applied to the slider, the resultant force of the combined action of the slider 10 and the elastic member 30 is transmitted to the rotator 41 through the locking lever 42, the locking lever 42 is disengaged from the locking groove 11a, the rotator 41 is rotated in the second direction away from the center by a set angle, the rotator 41 generates a torque, and at this time, the downward force applied to the slider 10 is reduced or the downward force applied to the slider 10 is cancelled, and at this time, the torque of the rotator 41 is greater than the resultant force of the combined action of the slider 10 and the elastic member 30, the rotator 41 is rotated in the direction opposite to the second direction, the rotator 41 rotates the locking lever 42 in the direction opposite to the second direction by the set angle, the rotator 41 is restored to the swing center, and the locking lever 42 enters the locking groove 11a at the lowest position, thus realizing.

The height adjusting mechanism 100 provided by the embodiment of the application has a simple structure, adjusts the height of the slider 10 by applying a downward acting force to the slider 10, namely, by pressing the slider 10 downward, and is simple and convenient to operate and convenient for a user to use.

It should be noted that the first direction may be a clockwise direction, and the second direction may be a counterclockwise direction. Alternatively, the first direction may be a counterclockwise direction, and the second direction may be a clockwise direction.

In an embodiment, referring to fig. 1 and fig. 2, the rotator 41 is a torsion spring pivotally connected to the base 20, a first end of the torsion spring is connected to a locking lever 42, the locking lever 42 is bent relative to the torsion spring and extends into the sliding slot 10a, and a second end of the torsion spring is fixed to the base 20. The torsion spring is adopted as the rotating body 41, so that the structure is simple and the implementation is easy.

Specifically, the locking lever 42 and the torsion spring may be formed as an integral structure. The locking lever 42 and torsion spring may be fixedly connected by a separate structure, such as welding.

Specifically, the base 20 may be formed with a boss, the boss may be formed with a fixing hole facing the torsion spring, and the second end of the torsion spring may extend into the fixing hole. The second end of the torsion spring is fixed through the fixing hole.

In an embodiment not shown, the rotator 41 comprises a rotating part pivotally connected to the base 20 and an elastic part connecting the rotating part and the base 20, the elastic part driving the rotating part to rotate back. That is, when the resultant force of the combined action of the slider 10 and the elastic member 30 is transmitted to the rotating portion through the locking lever 42, the rotating portion rotates away from the swing center, the rotating direction of the rotating portion may be the first direction or the second direction, the elastic portion is elastically deformed, and when the downward force applied to the slider 10 is reduced or the downward force applied to the slider 10 is cancelled, the elastic portion recovers the elastic deformation, the rotating portion rotates in the opposite direction, the rotating portion is returned to the swing center, and the locking lever 42 enters the locking groove 11 a.

Specifically, the elastic portion may be a plate spring or a spring.

In one embodiment, referring to fig. 3 and 4, the sliding member 10 has sliding grooves 10a formed on opposite sides thereof. The number of the locking pieces 40 is two, and the two locking pieces 40 are disposed on opposite sides of the slider 10 and correspond to the two sliding grooves 10a one-to-one. When a downward force is applied to the slider 10, the two locking pieces 40 are equally stressed, so that the two locking levers 42 slide more smoothly in the slide grooves 10a, and further, the two locking levers 42 can lock the slider 10 more firmly.

In one embodiment, referring to fig. 3 and 4, the locking member 40 is located outside the base 20, the base 20 is formed with a rotation groove 20b extending in the swing direction of the rotator 41, and the locking lever 42 extends into the sliding groove 10a through the rotation groove 20 b. The locking member 40 is disposed outside the base 20, not only to avoid the locking member 40 from occupying the space between the base 20 and the slider 10, but also to avoid the locking member 40 from interfering with the sliding of the slider 10.

In another embodiment, not shown, the locking member 40 is located inside the base 20. This avoids notching the base 20.

To protect the locking member 40, in one embodiment, referring to fig. 3 and 4, the height adjustment mechanism 100 includes a cover 50 coupled to the base 20, the cover 50 covering the locking member 40.

In an embodiment, the height adjusting mechanism 100 includes two rib plates protruding out of the outer wall surface of the base 20, and the two rib plates are located on one side of the swinging direction of the torsion spring, please refer to fig. 2 and 6, the two rib plates are arranged at intervals, and the second end of the torsion spring extends into the space between the two rib plates to fix the second end of the torsion spring. The cover 50 prevents the second end of the torsion spring from popping out of the space between the two bars.

In one embodiment, referring to fig. 1 and 4, the cover 50 is detachably connected to the base 20. For example, the cover 50 may snap or bolt into engagement with the base 20.

In some embodiments, the cover 50 is non-removably connected to the base 20. Such as welding.

In one embodiment, referring to fig. 5-7, the height adjustment mechanism 100 includes a guide post 60 coupled to the base 20. The guide post 60 extends in the height direction of the slider 10. The guide post 60 is located on one lateral side of the slider 10. The sliding member 10 is formed with a protrusion 11 protruding toward the guide post 60, the protrusion 11 is sleeved on the guide post 60, and the protrusion 11 can linearly reciprocate along the guide post 60. By means of the sliding fit of the protruding portion 11 and the guide post 60, the linear reciprocating motion of the sliding member 10 along the height direction of the base 20 is further facilitated, and the sliding member 10 is prevented from deviating from the sliding track.

It will be understood by those skilled in the art that the transverse direction of the slider 10 may be perpendicular to the height direction of the slider 10, for example, the transverse direction of the slider 10 may be the length direction of the slider 10, and may also be the width direction of the slider 10. If the guide post 60 is located at one side in the length direction of the slider 10, the locking member 40 may be located at one side in the width direction of the slider 10, so that the guide post 60 and the locking member 40 are prevented from interfering with each other. Of course, the guide post 60 may be located on one side in the width direction of the slider 10, and the locking member 40 may be located on one side in the length direction of the slider 10. That is, the lateral direction of the slider 10 may be the longitudinal direction of the slider 10, or may be the width direction of the slider 10.

It should be noted that the cross section of the guide post 60 may be circular, oval, or polygonal, such as triangular, quadrilateral, pentagonal, hexagonal, etc.

In one embodiment, referring to fig. 5 to 7, the elastic member 30 is sleeved on the guiding column 60. The elastic member 30 is an elastic compression member supported below the protruding portion 11. That is, the slide member 10 is provided with an upward force by the compression deformation of the elastic compression member.

In another embodiment, not shown, the elastic member 30 is an elastic stretching member, which is located above the protruding part 11. That is, the slide member 10 is provided with an upward force by the tensile deformation of the elastic tension member.

In order to reduce the friction between the guiding post 60 and the protrusion 11, in one embodiment, referring to fig. 5, the height adjusting mechanism 100 further includes a bushing 70, and the protrusion 11 is sleeved on the guiding post 60 through the bushing 70. Further, the sleeve 70 may be made of a wear-resistant polymer material with a low friction coefficient, such as teflon. Further, a portion of the boss 70 is located between the projection 11 and the elastic member 30, so that the boss 70 is easily slid up and down along with the projection 11.

In one embodiment, referring to fig. 1 and 5, the base 20 includes a cover plate 21 and a base body 22. The base body 22 is formed with an accommodating cavity 20a and a positioning cavity 22a with an open top, the accommodating cavity 20a is communicated with the positioning cavity 22a, the positioning cavity 22a is located on one lateral side of the sliding part 10, the guide column 60 and the protruding part 11 are both located in the positioning cavity 22a, and the cover plate 21 covers the opening of the positioning cavity 22 a. The guide post 60 and the projection 11 are disposed in the positioning cavity 22a so as to protect the guide post 60, the projection 11 and the elastic member 30 from the outside interfering with the sliding of the projection 11 along the guide post 60.

Specifically, the connection between the cover plate 21 and the base 22 may be a non-detachable connection, such as welding, or a detachable connection, such as a bolt connection or a snap connection.

In one embodiment, referring to fig. 5, the cover plate 21 includes a plate body 211 and a rib 212 protruding from the plate body 211 toward the positioning cavity 22 a. The rib 212 extends along the circumferential direction of the positioning column 60 to form a receiving groove, and the plate body 211 covers the opening of the positioning cavity 22 a. The top of the guide post 60 is located within the receiving slot. By adopting the design, the top of the guide post 60 is fixed by the cover plate 21, so that the connection between the guide post 60 and the base 20 is strengthened, and the guide post 60 is prevented from shaking.

In an embodiment not shown, a plurality of locking grooves 11a are arranged in zigzag communication. The locking groove 11a has a simple structure, and the locking lever 42 is conveniently locked in the locking groove 11 a.

In one embodiment, referring to fig. 6 and 8, the sliding groove 10a includes a plurality of transition grooves 12a and a reset groove 13a, the locking groove 11a includes a first groove section 111a and a second groove section 112a, the transition groove 12a includes a third groove section 121a and a fourth groove section 122a, the first groove section 111a and the third groove section 121a are spaced apart in a lateral direction of the sliding member 10, the first groove section 111a and the third groove section 121a extend obliquely upward, the first groove section 111a, the second groove section 112a, the third groove section 121a, and the fourth groove section 122a are sequentially communicated, the first groove section 111a of the adjacent locking groove 11a is communicated with the fourth groove section 122a of the transition groove 12a, and the reset groove 13a is communicated with the first groove section 111a of the locking groove 11a located at the highest position and the first groove section 111a of the locking groove 11a located at the lowest position.

Because the first groove section 111a and the third groove section 121a extend upwards in an inclined manner, and a certain angle is formed between the first groove section 111a and the second groove section 112a, the locking rod 42 can be better locked in the locking groove 11a, so that the slider 10 is prevented from being disengaged from the locking groove 11a by a small downward force, in particular, the locking rod 42 is prevented from being disengaged from the locking groove 11a under the condition of vibration or shaking of the slider 10, and only when the slider 10 is subjected to a large downward force, the locking rod 42 can enter the fourth groove section 122a of the adjacent transition groove 12a through the second groove section 112a of the locking groove 11a where the locking rod 42 is located and the third groove section 121a of the adjacent transition groove 12a, and then enter the next adjacent locking groove 11 a. If the locking lever 42 is located in the lowermost locking groove 11a, the locking lever 42 can be brought into the next highest locking groove 11a through the second groove section 112a of the lowermost locking groove 11a, the third groove section 121a of the adjacent transition groove 12a and into the fourth groove section 122a of the adjacent transition groove 12a only when the slider 10 is subjected to a large downward force.

In the same manner, when the locking lever 42 is located in the uppermost locking groove 11a, only in the case where the slider 10 is subjected to a large downward force, the locking lever 42 can pass through the second groove section 112a of the uppermost locking groove 11a and enter the reset groove 13a, thereby being restored to the lowermost locking groove 11 a. In an embodiment, referring to fig. 6 and 8, the first groove segment 111a, the second groove segment 112a, the third groove segment 121a, and the fourth groove segment 122a are linear grooves. That is, a first angle between the first groove segment 111a and the second groove segment 112a, the first angle being less than 90 °, and a second angle between the third groove segment 121a and the fourth groove segment 122a, the second angle being less than 90 °. The linear groove is adopted, so that the angle between the first groove section 111a and the second groove section 112a is convenient to control, and the process difficulty is reduced.

In another embodiment, not shown, the first groove segment 111a, the second groove segment 112a, the third groove segment 121a and the fourth groove segment 122a are curved grooves. In this way, the locking lever 42 is more smoothly slid within the first, second, third and fourth groove sections 111a, 112a, 121a and 122 a.

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.

Another aspect of the present embodiment further provides a lawn mower comprising a body, a driving motor 200, a cutter disc, and the height adjustment mechanism 100 of any of the above embodiments. The base 20 is disposed on the body. Slider 10 defines a cavity, a portion of drive motor 200 is located within positioning cavity 22a and is connected to slider 10, a drive shaft of drive motor 200 extends from the bottom of slider 10 and is connected to the cutter disc, and slider 10 reciprocates linearly in the height direction of base 20 to adjust the height of the cutter disc above the ground.

The height of slider 10 is adjusted by applying a downward force to slider 10 to adjust the height of the cutter disc from the ground, which is simple in construction and easy to operate.

In an embodiment not shown, the mower includes a travel motor, a travel mechanism, and a controller. The running gear is connected with the machine body in a rotating way. The walking motor is used for driving the walking mechanism to move. The controller is used to control the walking motor and the driving motor 200.

The running gear can be a tire or a crawler. The controller can control the walking motor to drive the walking mechanism to move, and the controller can also control the operation of the driving motor 200, that is, the mower can be an intelligent mower, also called as a 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 may include a flange that is bolted to the housing to facilitate detachable connection of the base 20 to the housing.

The lawn mower of the embodiment of the application can further comprise a pressing motor, the pressing motor is used for pressing the sliding part 10 downwards, a driving shaft of the pressing motor can be fixedly connected with the sliding part 10, the pressing motor can be a linear motor, and the controller can control the pressing 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 driving motor, second control information for controlling the pressing motor and third control information for controlling the walking motor. The display screen is used for displaying the working states of the driving motor, the pressing motor and the walking motor and/or the information of the height of the cutter disc from the ground and the like. The driving motor starts, stops and adjusts the speed according to the first control information. And the pressing 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 driving motor, the pressing motor and/or the walking motor. The battery may be a rechargeable battery or a non-rechargeable battery. In another embodiment, the lawn mower includes a power cord electrically connected to the drive motor, the press motor and/or the walk motor, the power cord being capable of communicating with an external power source to power the drive motor, the press motor and/or the walk 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 (16)

1. A height adjustment mechanism, comprising:

a slider formed with a sliding groove of a closed loop structure having a plurality of locking grooves arranged at intervals in order in a height direction of the slider;

the sliding part is positioned in the accommodating cavity and can do linear reciprocating motion along the height direction of the base;

an elastic member that applies an upward force to the slider; and

the locking piece comprises a rotating body and a locking rod fixedly connected with the rotating body, the rotating body is pivoted with the base, and the locking rod is slidably arranged in the sliding groove and locks the sliding piece at a plurality of height gears.

2. The height adjusting mechanism according to claim 1, wherein the swivel is a torsion spring pivotally connected to the base, a first end of the torsion spring is connected to the locking lever, the locking lever is bent relative to the torsion spring and extends into the sliding groove, and a second end of the torsion spring is fixed to the base.

3. The height adjustment mechanism of claim 1, wherein the swivel comprises a swivel portion pivotally connected to the base and an elastic portion connecting the swivel portion and the base, the elastic portion urging the swivel portion to return to the center.

4. The height adjusting mechanism according to claim 1, wherein the sliding grooves are formed on opposite sides of the sliding member, the number of the locking members is two, and two locking members are provided on opposite sides of the sliding member and correspond to the two sliding grooves one to one.

5. The height adjusting mechanism according to any one of claims 1 to 4, wherein the locking member is located outside the base, the base is formed with a rotation groove extending in a swing direction of the swivel, and the locking lever extends into the sliding groove through the rotation groove.

6. The height adjustment mechanism of claim 1, comprising a cover coupled to the base, the cover being disposed about the locking member.

7. The height adjustment mechanism of claim 6, wherein the cover is removably coupled to the base.

8. The height adjusting mechanism according to any one of claims 1 to 4, comprising a guide post connected to the base, the guide post extending in a height direction of the slider, the guide post being located on one lateral side of the slider, the slider being formed with a projection projecting toward the guide post, the projection being fitted over the guide post, the projection being capable of linearly reciprocating along the guide post.

9. The height adjustment mechanism of claim 8, wherein the resilient member is sleeved over the guide post,

the elastic part is an elastic compression part which is supported below the protruding part, or the elastic part is an elastic stretching part which is positioned above the protruding part.

10. The height adjustment mechanism of claim 8, further comprising a bushing, wherein the protrusion is sleeved on the guide post via the bushing.

11. The height adjusting mechanism according to claim 8, wherein the base includes a cover plate and a seat body, the seat body is formed with the accommodating cavity and a positioning cavity with an open top, the accommodating cavity is communicated with the positioning cavity, the positioning cavity is located at one lateral side of the sliding member, the guide post and the protruding portion are located in the positioning cavity, and the cover plate covers the opening of the positioning cavity.

12. The height adjusting mechanism as claimed in claim 11, wherein the cover plate includes a plate body and a rib protruding from the plate body toward the positioning cavity, the rib extends along the circumferential direction of the positioning column to form a receiving groove, the plate body covers the opening of the positioning cavity, and the top of the guiding column is located in the receiving groove.

13. The height adjusting mechanism as claimed in any one of claims 1 to 4, wherein the locking grooves are arranged in zigzag communication.

14. The height adjusting mechanism according to any one of claims 1 to 4, wherein the sliding groove includes a plurality of transition grooves and a reset groove, the locking groove includes a first groove section and a second groove section, the transition groove includes a third groove section and a fourth groove section, the first groove section and the third groove section are disposed along a transverse interval of the slider, the first groove section and the third groove section extend obliquely upward, the first groove section, the second groove section, the third groove section and the fourth groove section are sequentially communicated, the adjacent first groove section of the locking groove is communicated with the fourth groove section of the transition groove, and the reset groove is communicated with the first groove section of the locking groove located at the highest position and the first groove section of the locking groove located at the lowest position.

15. The height adjustment mechanism of claim 14, wherein the first, second, third, and fourth slot segments are linear slots;

or the first groove section, the second groove section, the third groove section and the fourth groove section are curved grooves.

16. A lawn mower, comprising:

a body;

a drive motor;

a cutter disc; and

the height adjusting mechanism of any one of claims 1 to 15, wherein the base is disposed on the body, the slider is formed with a cavity, a portion of the driving motor is disposed in the cavity and connected to the slider, a driving shaft of the driving motor extends from a bottom of the slider and is connected to the cutter disc, and the slider makes a straight reciprocating motion along a height direction of the base to adjust a ground clearance of the cutter disc.

Images