CN217790359U - Grass cutter - Google Patents

Abstract

The utility model provides a lawnmower, comprising: a casing, the bottom of which is provided with a through hole; a cutting system, which includes a cutting assembly and a driving assembly, the output shaft of the driving assembly extends from the through hole to the bottom of the casing and connected with the cutting assembly, and the driving assembly is slidably installed on the casing; the adjustment mechanism is fixedly installed on the casing, and the adjustment mechanism is connected to the casing The cutting system is connected to drive the cutting system to move along the lateral direction of the mower. The utility model enables the user to adjust the position of the cutting system in the machine according to the actual situation of the lawn, and the cutting system is in different positions to trim the edge of the lawn, and the distance to the edge of the lawn is also different, so that the product can be realized according to the actual needs of the user. Intelligent and automated to better improve user experience.

Description

a lawn mower

technical field

The utility model belongs to the technical field of electric tools, and in particular relates to a lawnmower.

Background technique

At present, robot lawn mowers have been widely used in the field of garden tools. Generally, the robot lawn mower is placed in the pre-arranged boundary line for mowing work, because the cutter head of the lawn mower is usually located in the center of the lawn mower. In this way, even if the walking wheels of the mower walk along the boundary line, there are still parts of the lawn that cannot be cut, and the operator needs to manually cut, which increases the operating intensity.

Utility model content

In view of the above shortcomings of the prior art, the purpose of this utility model is to provide a lawn mower to improve the lawn mower because the cutter head of the existing lawn mower is usually located at the center of the lawn mower, so that even if the walking wheels of the lawn mower are along the edge When walking on the boundary line, there are still some lawns that cannot be cut and need to be manually cut by the operator, which increases the problem of operating intensity.

In order to achieve the above purpose and other related purposes, the utility model proposes a lawn mower, including:

A casing, the bottom of which is provided with a through hole;

The cutting system includes a cutting assembly and a driving assembly, the output shaft of the driving assembly extends from the through hole to the bottom of the casing, and is connected with the cutting assembly, and the driving assembly is slidably installed on the on the casing;

An adjustment mechanism is fixedly installed on the casing, and the adjustment mechanism is connected with the cutting system to drive the cutting system to move along the lateral direction of the mower.

In one embodiment of the present utility model, a sliding guide is provided at the bottom of the casing, and the sliding guide is arranged parallel to the transverse direction of the mower, and the sliding guide is fixedly installed on the lawn mower. on the shell.

In one embodiment of the present utility model, the driving assembly includes a driving motor and a housing, and the driving motor is fixedly installed in the housing and connected to the cutting assembly.

In one embodiment of the present invention, a sliding guide rail is provided at the bottom of the housing, and the sliding guide rail is slidably connected with the sliding guide member to slidely install the cutting system on the casing.

In one embodiment of the present utility model, a threaded connecting rod is provided on the outside of the driving assembly, and the adjusting mechanism is threadedly connected with the threaded connecting rod.

In one embodiment of the present invention, the adjustment mechanism includes:

Adjusting the motor, the adjusting motor is fixedly installed on the casing;

a driving gear, the driving gear is fixedly connected to the output shaft of the adjusting motor;

A driven gear, the driven gear is threadedly connected to the threaded connecting rod and meshed with the driving gear.

In one embodiment of the present utility model, the adjustment mechanism further includes a control assembly, and the control assembly is electrically connected to the adjustment motor to control the adjustment motor to rotate forward or reversely.

In one embodiment of the present utility model, an inductor is arranged on the outside of the drive assembly, and a plurality of sensing positions for triggering the inductor are arranged on the casing on one side of the through hole, And a plurality of said induction positions are arranged along the transverse extension direction of said lawnmower.

In one embodiment of the present invention, one end of the through hole is located at a first position close to one side of the casing, and the other end is located at a middle position of the casing or near the other side of the casing. on the second position.

In one embodiment of the present invention, the casing on the side of the through hole is provided with a first trigger to trigger the sensor so that the cutting system is located in the middle of the casing and on one side of the casing. The sensing position and the second sensing position, or the first sensing position, the second sensing position and the third sensing position that trigger the sensor so that the cutting system is located in the middle of the casing and on both sides of the casing are provided .

The utility model proposes a lawn mower, by setting an adjustment mechanism on the casing to adjust the position of the cutting system, so that the user can adjust the position of the cutting system in the machine according to the actual situation of the lawn, the cutting system is in the The distance to the edge of the lawn is different in different positions, so that it can realize the intelligence and automation of the product according to the actual needs of users, so as to better improve the user experience.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a structural schematic diagram of a lawnmower in an embodiment of the present invention.

Fig. 2 is a schematic diagram of the exploded structure of the lawnmower in an embodiment of the present invention.

Fig. 3 is a structural schematic diagram of the casing of the lawnmower in an embodiment of the present invention.

FIG. 4 is a schematic top view of the cutting system located on one side of the casing in an embodiment of the present invention.

Fig. 5 is a schematic bottom view of the cutting system located on one side of the casing in an embodiment of the present invention.

FIG. 6 is a schematic top view of the cutting system located in the middle of the casing in an embodiment of the present invention.

Fig. 7 is a schematic bottom view of the cutting system located in the middle of the casing in an embodiment of the present invention.

Label description:

Housing 10; cutting system 20; adjustment mechanism 30; walking assembly 101; cutting assembly 201; driving assembly 202; oblong through hole 102; base 103; driving motor 2021; ; Thread adjusting rod 2023; Adjusting motor 301; Driving gear 302; Driven gear 303; Inductor 205; First position L1; Intermediate position L2;

Detailed ways

The implementation of the present utility model is described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation modes, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model.

It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic concept of the utility model, and only the components related to the utility model are shown in the diagrams rather than the number of components, Shape and size drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type may also be more complicated.

Please refer to Fig. 1 to Fig. 3, the utility model proposes a lawnmower to improve the lawnmower's cutter head, which is usually located at the center of the lawnmower, so that even if the walking wheels of the lawnmower are along the boundary line Walking, there are still some lawns that cannot be cut, and the operator needs to manually cut, which increases the problem of operating strength. Specifically, the mower 100 includes a casing 10, a cutting system 20, an adjustment mechanism 30 and a control system. In the Both sides of the bottom of the casing 10 are provided with walking assemblies 101 for driving the lawnmower 100 to walk by itself, and the cutting system 20 is slidably installed on the casing 10 for driving the lawnmower 100 Mowing operations are carried out during the self-propelled process, and the control system is electrically connected with the walking assembly 101 and the cutting system 20 of the lawnmower 100, so as to control the walking assembly 101 to perform self-propelling and control the cutting system 20 For mowing operations, the adjustment mechanism 30 is installed on the casing 10 and connected to the cutting system 20 for adjusting the position of the mowing system 20 on the casing 10, so that The user can adjust the position of the cutting system in the machine according to the actual situation of the lawn, so as to change the distance between the edge of the lawn.

1 to 3, in this embodiment, the cutting system 20 includes a cutting assembly 201 and a driving assembly 202, the driving assembly 202 is installed above the casing 10, the cutting assembly 201 Located at the bottom of the casing 10 and connected to the driving assembly 202, the cutting assembly 201 is driven by the driving assembly 202 to mow the grass. Specifically, a through hole is provided at the bottom of the casing 10 , the through hole is, for example, an oblong through hole 102, and the direction of the oblong through hole 102 is along the width direction of the casing 10, that is, along the transverse direction of the mower. The output shaft of 202 extends from the oblong through hole 102 to the bottom of the casing 10, and is connected with the cutting assembly 201, and the driving assembly 202 is slidably installed on the casing 10, so that The adjusting mechanism 30 drives the driving assembly 202 to slide on the housing 10 , thereby changing the position of the cutting system 20 .

1 to 3, in this embodiment, the driving assembly 202 includes a driving motor 2021 and a housing 2022, the driving motor 2021 is fixedly installed in the housing 2022, and the driving motor The output shaft 20211 of 2021 is connected with the cutting assembly 201 to drive the cutting assembly 201 to mow grass, and the housing 2022 is slidably installed with the casing 10 .

1 to 3, in this embodiment, the bottom of the casing 10 is provided with a sliding guide 203, and the sliding guide 203 is fixedly installed in the oblong through hole 102 two sides, to play a guiding role, and the sliding guide 203 is fixedly connected with the casing 10, correspondingly, the bottom of the housing 2022 is also provided with the sliding guide 203 The matching sliding guide rail 204, through the sliding fit between the sliding guide rail 204 and the sliding guide member 203, the cutting system 20 and the casing 10 are slidably installed together, so that the cutting system 20 can slide along the sliding guide 203 to change the position of the cutting system 20 on the casing 10 . It should also be noted that the sliding guide 203 and the oblong through hole 102 are arranged parallel to each other, that is, arranged parallel to the transverse direction of the mower, so that the cutting system 20 can move along the The width direction of 10 changes its position.

Please refer to FIG. 1 to FIG. 3, in this embodiment, a threaded adjustment rod 2023 is provided on the outside of the housing 2022, the adjustment mechanism 30 is fixedly installed on the housing 10, and the The adjustment mechanism 30 is threadedly connected with the threaded adjustment rod 2023, and is used to drive the cutting system 20 to move along the oblong passage under the cooperative action between the sliding guide rail 204 and the sliding guide member 203. The hole 102 moves, that is, moves along the lateral direction of the mower. Specifically, the adjustment mechanism 30 includes an adjustment motor 301, a driving gear 302 and a driven gear 303, and the adjustment motor 301 is fixedly installed on the mower. On the shell 10, the driving gear 302 is fixedly installed on the output shaft of the adjusting motor 301, and meshes with the driven gear 303 to realize the transmission, and the inner hole of the driven gear 303 is set There is a threaded structure for threaded connection with the threaded adjusting rod 2023, that is, the driven gear 303 and the threaded connecting rod 2023 are threaded together, and the adjusting motor 301 drives the driving gear 302 to rotate, from Drive the driven gear 303 to rotate, and under the screw cooperation between the driven gear 303 and the threaded adjustment rod 2023, the cutting system 20 slides on the slide guide 203, so as to The position of the cutting system 20 is changed.

Please refer to Fig. 1 to Fig. 3, in this embodiment, the adjustment mechanism 30 also includes a control assembly, the control assembly is installed on the casing 10, and is electrically connected with the adjustment motor 301, so as to Drive the adjusting motor 301 to rotate forward or reverse, so that the cutting system moves along the sliding guide 203 to the direction close to the side of the casing 10 or to the direction close to the middle position of the casing 10 direction to move. It should be noted that, in this embodiment, the control assembly of the adjustment mechanism 30 and the control system of the lawnmower 100 can be integrated together.

Please refer to Fig. 1 to Fig. 3, in this embodiment, an inductor 205 is arranged on the outside of the drive assembly 202, and the inductor 205 is set as a photoelectric gate sensor, for example, on the oblong The casing 10 on one side of the through hole 102 is provided with a plurality of sensing positions, and the plurality of sensing positions are arranged along the extending direction of the oblong through hole 102, that is, a plurality of sensing positions are arranged along the mowing direction. The horizontal extension direction of the machine is set, the sensing position is used to trigger the sensor 205, when the sensor 205 is triggered and activated, the adjustment motor 301 stops moving, so that the cutting system 20 stays at the position where at the sensing location. Specifically, the inductor 205 is arranged on the casing 2022 of the driving assembly 202, and a base 103 is arranged on the casing 10, the base 103 is located outside the sliding guide 203, and is connected with The sliding guides 203 are parallel to each other, and a plurality of sensing positions are set on the base 103 . In some other embodiments, the sensing position may be set on the housing 2022 , and correspondingly, a plurality of sensors are set on the base 103 .

Please refer to Fig. 1, Fig. 3 to Fig. 7, in this embodiment, one end of the oblong through hole 102 is located at the first position L1 near the side of the casing 10, and the other end is located at the At the middle position L2 of the casing, correspondingly, the casing 10 on the side of the oblong through hole 102 is provided with a first sensing position A1 and a second sensing position A2, when the cutting system 20 slides to When the oblong through hole 102 is at the first position L1, the sensor 205 is triggered and activated by the first sensing position A1, so that the adjustment motor 301 stops rotating, so that the cutting system 20 stays at the One side of the casing 10. When the cutting system 20 slides to the second position L2 of the oblong through hole 102, the sensor 205 is activated by the second sensing position A2, so that the adjustment motor 301 stops rotating, so that all The cutting system 20 stays in the middle of the casing 10 .

It should also be noted that, referring to Fig. 1, Fig. 3 to Fig. 7, the cutting system 20 can stay at any position between the first position L1 and the middle position L2, so that the user can According to the actual situation, adjust the position of the cutting system in the machine.

It should also be noted that, please refer to FIG. 1 , as shown in FIG. 3 to FIG. function, so that when the cutting system 20 slides to the limit position at both ends of the oblong through hole 102, the sensor 205 is triggered, so that the adjustment motor 301 stops rotating, and then the cutting system 20 Stop sliding, to avoid excessive sliding when the cutting system 20 moves to the limit position, so as to collide with the casing 10, etc., thereby improving the safety during the operation of the mower.

In some other embodiments, one end of the oblong through hole 102 is located at a first position close to one side of the housing 10, and the other end is located at a second position close to the other side of the housing 10. Correspondingly, the casing 10 on one side of the oblong through hole 102 is provided with a first sensing position and a second sensing position, when the cutting system 20 slides to the first position of the oblong through hole 102 position, the sensor 205 is activated by the first sensing position, so that the adjustment motor 301 stops rotating, so that the cutting system 20 stays at one side of the casing 10 . When the cutting system 20 slides to the second position of the oblong through hole 102, the sensor 205 is triggered and activated by the second sensing position, so that the adjustment motor 301 stops rotating, so that the cutting The system 20 stays on the other side of the enclosure 10 . It should be noted that a third sensing position can also be set on the casing 10 on the side of the oblong through hole 102, and the third sensing position B3 is located between the first sensing position and the second sensing position Meanwhile, the sensor 205 is activated by the third sensing position, so that the adjustment motor 301 stops rotating, so that the cutting system 20 stays at the middle position of the casing 10 .

It should also be noted that the cutting system 20 can stay at any position between the first position and the second position, so that the user can adjust the position of the cutting system in the machine according to the actual conditions of the lawn.

Please refer to Fig. 1, Fig. 3 to Fig. 7, in this embodiment, one end of the oblong through hole 102 is located at the first position L1 near the side of the casing 10, and the other end is located at the Take the middle position L2 of the above-mentioned casing as an example. To perform lawn trimming outside the boundary is to execute this function before the lawn is trimmed or after the lawn is trimmed every time the machine goes out to perform the lawn trimming task. When performing the boundary trimming task , one control method of the lawnmower is that when the robot lawnmower is activated by the user for the first time, the control system controls the adjustment motor 301 to start running until the sensor 205 is activated by the second induction position A2 and then adjusts the motor 301 stops running. At this time, the cutting system 20 returns to the central position of the casing 10 to control the lawn mower 100 to perform the lawn trimming task. The first induction position A1 is activated again, and the adjustment motor 301 stops moving. At this time, the cutting system 20 is located on one side of the casing 10 to be in the boundary trimming position, and starting from the charging center, it rides along the edge of the boundary line. Walk the lawn trimming task outside the boundary along the boundary line, after this task is carried out, the control system controls and adjusts the motor 301 to rotate, makes cutting system 20 get back to the machine center position again, to perform the next task. It should be noted that when the power of the lawn mower is insufficient during the execution of the task, at this time, stop cutting the lawn and control the lawn mower 100 to continue along the boundary line and return to the charging center for charging. In this process, stop cutting the lawn Until returning to the charging center, record the walking time t1. After the charging is completed, control the lawn mower 100 to walk along the boundary line in the opposite direction from the charging center and continue to trim the lawn, and count the walking time t2. When the walking time t2=t1, Boundary lawn mowing done. It should also be noted that, in some other embodiments, the cutting system 20 can be controlled to stay in different positions according to the different distances from the edges of the mowed lawn. It should also be noted that controlling the mower 100 to perform the lawn mowing task may also be performed after the outside lawn mowing task is completed.

The utility model proposes a lawn mower, by setting an adjustment mechanism on the casing to adjust the position of the cutting system, so that the user can adjust the position of the cutting system in the machine according to the actual situation of the lawn, the cutting system is in the The distance to the edge of the lawn is different in different positions, so that it can realize the intelligence and automation of the product according to the actual needs of users, so as to better improve the user experience.

The above description is only a preferred embodiment of the application and an explanation of the technical principle used. Those skilled in the art should understand that the scope involved in this application is not limited to the technical solution formed by the specific combination of the above technical features. At the same time, it should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the concept of the utility model. For example, the above-mentioned features are similar to (but not limited to) disclosed in the application A technical solution formed by replacing technical features of a function with each other.

Except for the technical features described in the specification, the rest of the technical features are known to those skilled in the art. In order to highlight the innovative features of the present utility model, the rest of the technical features will not be repeated here.

Claims (10)

1. A lawn mower, comprising:

the bottom of the machine shell is provided with a through hole;

the cutting system comprises a cutting assembly and a driving assembly, an output shaft of the driving assembly extends to the lower part of the shell from the through hole and is connected with the cutting assembly, and the driving assembly is slidably mounted on the shell;

an adjustment mechanism fixedly mounted on the housing and coupled to the cutting system to drive the cutting system to move in a lateral direction of the mower.

2. The mower of claim 1, wherein the bottom of the housing is provided with a sliding guide, and the sliding guide is arranged parallel to the lateral direction of the mower and is fixedly mounted on the housing.

3. The lawnmower of claim 2, wherein the drive assembly comprises a drive motor and a housing, the drive motor being fixedly mounted within the housing and connected to the cutting assembly.

4. A lawnmower as claimed in claim 3, wherein the bottom of the housing is provided with a sliding guide through which the sliding guide slidably engages to slidably mount the cutting system on the chassis.

5. A lawnmower as claimed in claim 1, wherein the drive assembly is provided with a threaded connecting rod on the outside thereof, the adjustment mechanism being threadedly connected to the threaded connecting rod.

6. The mower of claim 5, wherein the adjustment mechanism comprises:

the adjusting motor is fixedly arranged on the shell;

the driving gear is fixedly connected with an output shaft of the adjusting motor;

the driven gear is in threaded connection with the threaded connecting rod and meshed with the driving gear together.

7. The lawnmower of claim 6, wherein the adjustment mechanism further comprises a control assembly electrically connected to the adjustment motor to control the adjustment motor to rotate in forward or reverse.

8. The mower of claim 1, wherein an inductor is disposed on an outer side of the driving assembly, a plurality of induction positions for triggering the inductor are disposed on the housing on one side of the through hole, and the plurality of induction positions are disposed along a lateral extension direction of the mower.

9. The mower of claim 8 wherein one end of the through hole is located at a first position near one side of the housing and the other end is located at a second position at a middle position or near the other side of the housing.

10. The lawnmower of claim 9, wherein the first sensing position and the second sensing position are arranged on the housing on one side of the through hole to trigger the sensor to position the cutting system at a middle position of the housing and at one side of the housing, or the first sensing position, the second sensing position and the third sensing position are arranged on the housing to trigger the sensor to position the cutting system at a middle position of the housing and at two sides of the housing.

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