Lawn mower

Abstract

The present invention discloses a lawn mower, which has a horizontal working state and a vertical storage state. The lawn mower includes a lawn mower body and a protection switch. The protection switch is arranged at one end of the lawn mower body adjacent to the ground. The protection switch is adapted to be triggered when the lawn mower is in the vertical storage state to disconnect the control circuit of the lawn mower. According to the lawn mower of the embodiment of the present invention, by arranging the protection switch and making the protection switch be triggered when the lawn mower is in the vertical storage state, it is possible to avoid the lawn mower being turned on after a misoperation, thereby improving the use safety of the lawn mower.

Description

Technical Field

[0001] The present invention relates to the technical field of household machinery, and more particularly to a lawn mower. Background Art

[0002] In the related art, a lawn mower is used to trim a lawn and has a working state for trimming the lawn and a storage state for parking and storing.

[0003] However, for the convenience of use, the stop button of the existing lawn mower is set at a position where the operator can easily touch it. In the storage state, it may be accidentally touched, resulting in the lawn mower being turned on in the storage state, which poses a safety hazard. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a lawn mower with higher usage safety.

[0005] According to an embodiment of the present invention, the lawn mower has a horizontal working state and a vertical storage state, and the lawn mower includes: a lawn mower body and a protection switch. The protection switch is disposed at one end of the lawn mower body adjacent to the ground, and the protection switch is adapted to be triggered when the lawn mower is in the vertical storage state to disconnect the control circuit of the lawn mower.

[0006] According to the lawn mower of the embodiment of the present invention, by providing a protection switch and triggering the protection switch when the lawn mower is in the vertical storage state, it is possible to prevent the lawn mower from being turned on after accidental operation, thereby improving the usage safety of the lawn mower.

[0007] In some embodiments, when the lawn mower is in the vertical storage state, the triggering portion of the protection switch is adapted to abut against the ground.

[0008] In some embodiments, the lawn mower further includes: a first trigger member. The trigger member is disposed below the triggering portion and connected to the lawn mower body. When the lawn mower is in the vertical storage state, the trigger member moves towards the triggering portion and triggers the protection switch.

[0009] Further, the first trigger member includes: a trigger plate, a first driving member, and a reset member. The first driving member is adapted to drive the trigger plate to move. The reset member is disposed between the first driving member and the trigger member, and the first driving member can selectively abut against the ground.

[0010] Optionally, the protection switch is configured as an induction switch, and the induction switch is adapted to sense the displacement of the second driving member and is triggered when the displacement exceeds a threshold.

[0011] A lawn mower according to an embodiment of the present invention has a horizontal working state and a vertical storage state. The lawn mower includes: a lawn mower body and a protection switch. The protection switch is provided on the lawn mower body, and a second trigger member. The second trigger member includes: a trigger member body, a pressing plate, and a second driving member. The pressing plate is provided on the protection switch. The second driving member is movably provided in the trigger member body and is adapted to move towards or away from the pressing plate to drive the pressing plate towards or away from the triggering portion, so as to selectively disconnect the control circuit of the lawn mower.

[0012] Further, an arc-shaped groove is provided in the trigger member body. The second driving member is selectively located at one end or the other end of the arc-shaped groove under the action of gravity. When the second driving member is located at one end of the arc-shaped groove, the protection switch is triggered.

[0013] In some embodiments, the protection switch is configured as an induction switch. The induction switch is adapted to sense the displacement of the first driving member and is triggered when the displacement exceeds a threshold.

[0014] In some embodiments, the protection switch is configured as an induction switch. The induction switch is adapted to sense the displacement of the second driving member and is triggered when the displacement exceeds a threshold.

[0015] Optionally, the induction switch is adapted to send a control signal to a controller, and the controller is adapted to control the motor to cut off power.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic diagram according to a first embodiment of the present invention;

[0019] Figure 2 is Figure 1 an enlarged schematic diagram of area A in

[0020] Figure 3 is a schematic diagram according to a second embodiment of the present invention;

[0021] Figure 4 is Figure 3 an enlarged schematic diagram of area B in

[0022] Figure 5Schematic diagram of a state according to the third embodiment of the present invention;

[0023] Figure 6 Schematic diagram of another state according to the third embodiment of the present invention;

[0024] Figure 7 Schematic diagram according to the fourth embodiment of the present invention;

[0025] Figure 8 is Figure 7 An enlarged schematic diagram of area C in

[0026] Reference numerals:

[0027] Lawn mower 100,

[0028] Lawn mower body 10, guide groove 11,

[0029] Protection switch 20, trigger part 21,

[0030] First trigger member 30, trigger plate 31, first driving member 32, reset member 33,

[0031] Second trigger member 40, pressing plate 41, second driving member 42, trigger member body 43, arc groove 431. Detailed description of the specific implementation

[0032] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0033] Reference will be made below to Figures 1-8 Describe the lawn mower 100 according to the embodiment of the present invention.

[0034] As Figure 1 shown, the lawn mower 100 according to the embodiment of the present invention has a horizontal working state and a vertical storage state. The lawn mower 100 includes: a lawn mower body 10 and a protection switch 20. The protection switch 20 is provided at one end of the lawn mower body 10 adjacent to the ground. The protection switch 20 is adapted to be triggered when the lawn mower 100 is in the vertical storage state to disconnect the control circuit of the lawn mower 100.

[0035] Specifically, in some embodiments, the protection switch 20 is connected to the control circuit of the lawn mower 100 and is configured as a normally closed switch. Thus, when the protection switch 20 is triggered, the control circuit is disconnected. When the lawn mower 100 is in a horizontal state, the protection switch 20 is in a closed state. The operator only needs to trigger the working switch of the lawn mower 100 set adjacent to the operator, and the mowing blade of the lawn mower 100 can be rotated to perform mowing operations. When the lawn mower 100 is in a vertical storage state, the operator turns off the working switch of the lawn mower 100, and at the same time, the protection switch 20 is triggered. When there is a subsequent misoperation or accidental touch of the working switch, the protection switch 20 has already disconnected the control circuit, so as to avoid the rotation of the mowing blade after misoperation and improve the use safety of the lawn mower 100.

[0036] In other embodiments, the protection switch 20 can send a control signal to ensure that the motor is powered off. Thus, when the lawn mower 100 is in a horizontal working state, the protection switch 20 will not be triggered, so that the lawn mower 100 can work normally. When the lawn mower 100 is in a vertical storage state, the operator turns off the working switch of the lawn mower 100. When there is a subsequent misoperation or accidental touch of the working switch, the control signal sent by the protection switch 20 can ensure that the motor does not rotate, so as to improve the use safety of the lawn mower 100.

[0037] It should be noted that misoperations include: when the lawn mower 100 is in a vertical storage state, forgetting to turn off the working switch of the lawn mower 100 and after turning off the working switch, accidentally touching it so that the working switch is turned on again.

[0038] In summary, for the lawn mower 100 according to the embodiments of the present invention, by setting the protection switch 20 and making the protection switch 20 be triggered when the lawn mower 100 is in a vertical storage state, it is possible to avoid the lawn mower 100 being powered on after misoperation, thereby improving the use safety of the lawn mower 100.

[0039] Next, with reference to Figures 1-8 , four specific embodiments will be used to specifically describe the lawn mower 100 of the present invention.

[0040] As Figure 1 and Figure 2 shown, in the first embodiment of the present invention, when the lawn mower 100 is in a vertical storage state, the triggering portion 21 of the protection switch 20 abuts against the ground.

[0041] In other words, the protection switch 20 is configured as a push switch. When the lawn mower 100 is in a vertical storage state, the push switch 20 is triggered to disconnect the control circuit of the lawn mower 100.

[0042] That is to say, in the first embodiment, the protection switch 20 is configured as a push switch, which is a normally closed switch. Thus, when the lawn mower 100 is in the vertical storage state, the push switch switches to the off state to ensure that the lawn mower 100 will not operate even if it is accidentally touched or misoperated.

[0043] It can be understood that, in the first embodiment, the protection switch 20 is disposed at one end adjacent to the ground when the lawn mower 100 is in the vertical storage state, and the trigger portion 21 of the protection switch 20 directly abuts against the ground to disconnect the control circuit. Thus, the technical effect of improving the use safety of the lawn mower 100 is achieved, which will not be elaborated here.

[0044] It can be understood that the protection switch 20 being configured as a push switch means that the protection switch 20 is configured as a mechanically triggered switch, which can be triggered by pressing or other mechanical movement forms.

[0045] As Figure 3 and Figure 4 shown, in the second embodiment of the present invention, the lawn mower 100 further includes: a first trigger member 30. The protection switch 20 is located at one end of the lawn mower 100 adjacent to the ground. The first trigger member 30 is disposed below the trigger portion 21 and connected to the lawn mower body 10. When the lawn mower 100 is in the vertical storage state, the first trigger member 30 moves towards the trigger portion 21 and triggers the protection switch 20.

[0046] That is to say, in the second embodiment, a first trigger member 30 is further disposed between the protection switch 20 and the ground, and the protection switch 20 is still configured as a push switch. Wherein, at least a part of the first trigger member 30 can move towards the trigger portion 21 of the protection switch 20 under the thrust of the ground, and then push the trigger portion 21 to trigger the protection switch 20. The technical effects are the same as those of the above embodiment, which will not be elaborated here.

[0047] The difference between the second embodiment and the first embodiment is that in the second embodiment, when the lawn mower 100 is in the vertical storage state, a first trigger member 30 is further disposed between the protection switch 20 and the ground.

[0048] In Figure 3 and Figure 4 shown in the specific embodiment, the first trigger member 30 includes: a trigger plate 31 and a first driving member 32. The first driving member 32 is adapted to drive the trigger plate 31 to move, and the first driving member 32 can selectively abut against the ground.

[0049] Thus, the first driving member 32 that selectively abuts against the ground moves upward to drive the trigger plate 31 to move, and the trigger plate 31 then presses the trigger portion 21 to trigger the protection switch 20.

[0050] It can be understood that separating the protection switch 20 from the ground by the first trigger member 30 can extend the service life of the protection switch 20. When disassembling, installing, or replacing, there is no need to remove the protection switch 20, making the maintenance of the lawn mower 100 simpler and more convenient.

[0051] Furthermore, the first trigger member 30 further includes a reset member 33 disposed between the first driving member 32 and the trigger plate 31. Thus, the reset member 33, which abuts against the first driving member 32 at one end and the trigger plate 31 at the other end, drives the first driving member 32 to reset, preventing the protection switch 20 from being triggered when the lawn mower 100 is in a horizontal working state and improving the working stability of the lawn mower 100.

[0052] See Figure 4 As shown, a guiding groove 11 is provided on the lawn mower body 10, and the trigger plate 31 is slidably disposed within the guiding groove 11. Thus, guiding the movement of the trigger plate 31 through the guiding groove 11 can further improve the working stability of the first trigger member 30.

[0053] That is to say, the difference between the second embodiment and the first embodiment is that a first trigger member 30 is provided below the pressing switch, and the pressing switch is triggered by the first trigger member 30.

[0054] As Figure 5 and Figure 6 shown, in the third embodiment, the lawn mower 100 has a horizontal working state and a vertical storage state. The lawn mower 100 includes a lawn mower body 10, a protection switch 20, and a second trigger member 40. The second trigger member 40 includes a trigger body 43, a pressing plate 41, and a second driving member 42. The pressing plate 41 is disposed on the pressing switch, and the second driving member 42 is movably disposed within the trigger body 43 and is adapted to move toward or away from the pressing plate 41 to drive the pressing plate 41 to move toward or away from the triggering portion 21, thereby selectively disconnecting the control circuit of the lawn mower 100.

[0055] In other words, in the third embodiment, the trigger body 43 is fixed to the lawn mower body 10, and a second driving member 42 is disposed within the trigger body 43. The second driving member 42 is adapted to move toward the pressing plate 41 and press the triggering portion 21 through the pressing plate 41.

[0056] In the third embodiment, the pressing switch, the second driving member 42, and the pressing plate 41 are all disposed within the trigger body 43, and one end of the pressing plate 41 is connected to the pressing switch, and the free end is selectively movable toward or away from the pressing switch. On the premise of achieving the same technical effect as the first embodiment, the structure of the second trigger member 40 in the third embodiment is more reasonable, which can extend the service life of the second trigger member 40 and the pressing switch.

[0057] In other words, in the third embodiment, the second trigger 40 and the protection switch 20 can both be arranged at any position, not limited to being arranged at one end of the lawn mower body 10 adjacent to the ground.

[0058] As Figure 6 shown, an arc-shaped groove 431 is arranged in the trigger body 43. The second driving member 42 can selectively be located at one end or the other end of the arc-shaped groove 431 under the action of gravity, and when the second driving member 42 is located at one end of the arc-shaped groove 431, the pressing switch is triggered.

[0059] Specifically, when the lawn mower 100 is in a horizontal working state, the second driving member 42 is located at the end of the arc-shaped groove 431 far from the pressing switch, and the second driving member 42 is limited by the action of gravity, so that the protection switch 20 can be prevented from being triggered when in the horizontal working state; when the lawn mower 100 is in a vertical storage state, the second driving member 42 is located at the end of the arc-shaped groove 431 adjacent to the pressing switch, and the second driving member 42 constantly abuts against the pressing plate 41 under the action of gravity, which can improve the working stability of the trigger 30.

[0060] It can be understood that the pressing plate 41 is configured as an elastic pressing piece. One end of the elastic pressing piece is connected to the pressing switch, the other end of the elastic pressing piece can selectively move towards or away from the triggering part 21, and a convex part protruding towards the driving member 32 is arranged at the other end of the elastic pressing piece. Thus, while making the response speed of the pressing plate 41 faster, it is ensured that the protection switch 20 will not be triggered when the lawn mower 100 is in a horizontal working state, and the working stability of the lawn mower 100 can be further improved.

[0061] It should be noted that the difference between the third embodiment and the second embodiment is that in the second embodiment, the lawn mower 100 falls to compress the second trigger 40 to trigger the pressing switch, and in the third embodiment, the second driving member 42 of the second trigger 40 triggers the pressing switch under the action of its own gravity.

[0062] As Figures 1-6 shown, according to some embodiments of the present invention, both the first driving member 32 and the second driving member 42 are configured as balls. Thus, the balls can roll in the guiding groove 11 or the arc-shaped groove 431, and there will be no jamming during the movement of the second driving member 42.

[0063] As Figure 7 and Figure 8 shown, in the fourth embodiment, the protection switch 20 is configured as an inductive switch, and the inductive switch is adapted to sense the displacement of the first driving member 32 or the second driving member 42 and is triggered when the displacement exceeds a threshold value.

[0064] That is to say, in the fourth embodiment, the protection switch 20 is configured as an induction switch, and the induction switch is adapted to sense the displacement of the first driving member 32 of the first trigger member 30 in the second embodiment or sense the displacement of the second driving member 42 of the second trigger member 40 in the third embodiment. Furthermore, after the first driving member 32 or the second driving member 42 generates a displacement and the displacement satisfies the threshold for triggering the induction switch, the induction switch sends a control signal to the controller, thereby controlling the disconnection of the control loop, and the same technical effect as that of the first embodiment can also be achieved.

[0065] It can be understood that the induction switch is any one of a Hall sensor, a displacement sensor, and a relay.

[0066] It should be noted that when the induction switch is configured as a relay, the driving member 32 is configured as a magnetic member, and thus the relay can be triggered under the action of the magnetic member.

[0067] Among them, the induction switch is adapted to send a control signal to the controller, and the controller is adapted to control the motor to cut off power.

[0068] That is to say, the induction switch can sense the displacement of the driving member 32, thereby sending a control signal. After the control signal is received by the controller, the controller issues an instruction according to the control signal to control the motor to cut off power.

[0069] It can be understood that the difference between the fourth embodiment and the above first to third embodiments is that the induction switch in the fourth embodiment is configured as a sensor.

[0070] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0071] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features.

[0072] In the description of the present invention, the meaning of "a plurality" is two or more.

[0073] In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0074] In the description of the present invention, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature.

[0075] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0076] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lawn mower, characterized in that, The lawn mower has a horizontal working state and a vertical storage state, and the lawn mower includes: A lawn mower body; A protection switch, which is arranged on the lawn mower body, A second trigger member, which includes a trigger member body, a pressing plate and a second driving member. The pressing plate is arranged on the protection switch. The second driving member is movably arranged in the trigger member body and is adapted to move towards or away from the pressing plate to drive the pressing plate to move towards or away from the trigger part of the protection switch, so as to selectively disconnect the control circuit of the lawn mower; The second driving member is adapted to move towards the pressing plate only under the action of gravity when the lawn mower is in the vertical storage state, so as to drive the pressing plate to move towards the trigger part of the protection switch, trigger the protection switch, and disconnect the control circuit of the lawn mower.

2. The lawn mower according to claim 1, characterized in that, The pressing plate is configured as an elastic pressing piece. An arc-shaped groove is arranged in the trigger member body. The second driving member can be selectively located at one end or the other end of the arc-shaped groove under the action of gravity. When the second driving member is located at one end of the arc-shaped groove, the protection switch is triggered.

3. The lawn mower according to claim 1, characterized in that, The protection switch is configured as an inductive switch, which is adapted to sense the displacement of the second driving member and is triggered when the displacement exceeds a threshold value.

4. The lawn mower according to claim 3, characterized in that, The inductive switch is adapted to send a control signal to the controller, and the controller is adapted to control the motor of the lawn mower to cut off the power.

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