Garden tools

Abstract

The present invention provides a gardening tool, which includes a main body, wheels, a steering system and a prompting system mounted on the main body. The steering system includes a first motor, a second motor, a first control component and a second control component. After operating the first control component, the prompting system works, the first motor stops rotating, the second motor continues to rotate, the first wheel stops rotating, and the second wheel continues to rotate with the first wheel as the center to achieve steering; after operating the second control component, the prompting system works, the second motor stops rotating, the first motor continues to rotate, the second wheel stops rotating, and the first wheel continues to rotate with the second wheel as the center to achieve steering. Compared with the prior art, when the gardening tool of the present invention steers, it can use a voice promptor and a light promptor to give warnings to remind people or animals to keep a certain safe distance and avoid being injured.

Description

Technical Field

[0001] The present invention relates to a gardening tool with a steering system and a prompting system. Background Art

[0002] Currently, snow blowers on the market are divided into two types: lithium - battery snow blowers and engine - powered snow blowers. Since the gasoline engine of the engine - powered snow blower produces a relatively high noise decibel value after startup, and even when the engine is idling (not snow - blowing and not self - propelling), the noise value will reach more than 103 decibels. Therefore, its self - propelling, steering, and reversing can all give a certain warning to people or animals around, enabling people or animals to maintain a certain safe distance.

[0003] However, the motor of the lithium - battery snow blower makes relatively little noise during operation. When the whole machine is operating, the operator can notice that people or animals in front of the machine or within the operator's visible range are not harmed by the machine. However, when the whole machine is turning or reversing, due to the influence of the environment and protective devices, it is very difficult for the operator to observe whether people or animals around will be harmed by the machine.

[0004] In view of this, it is indeed necessary to set up a prompting system on the lithium - battery snow blower to prompt the operator and people or animals around to avoid being harmed by the machine. Summary of the Invention

[0005] The purpose of the present invention is to provide a gardening tool with a prompting system to prompt the operator and people or animals around to avoid being harmed by the machine.

[0006] To achieve the above - mentioned purpose, the present invention provides a gardening tool, including a main body, wheels and a steering system installed on the main body. The wheels include a first wheel and a second wheel arranged left and right. The steering system is used to control the first wheel and the second wheel to achieve steering. The steering system includes a first motor for driving the first wheel to rotate, a second motor for driving the second wheel to rotate, a first control component for controlling the start and stop of the first motor, and a second control component for controlling the start and stop of the second motor. The gardening tool also includes a prompting system installed on the main body. After operating the first control component, the prompting system works, the first motor stops rotating, the second motor continues to rotate, the first wheel stops rotating, and the second wheel continues to rotate with the first wheel as the center to achieve steering. After operating the second control component, the prompting system works, the second motor stops rotating, the first motor continues to rotate, the second wheel stops rotating, and the first wheel continues to rotate with the second wheel as the center to achieve steering.

[0007] As a further improvement of the present invention, the prompting system includes a voice prompt and a light prompt. The steering system further includes a self-driving switch, which is connected to the first motor and the second motor at the same time, so that after pressing the self-driving switch, the first motor and the second motor are started synchronously, and drive the first wheel and the second wheel to rotate synchronously to achieve self-driving; when the gardening tool moves forward by self-driving, the voice prompt and the light prompt both stop working.

[0008] As a further improvement of the present invention, the steering system further includes a reverse switch, which is connected to the first motor and the second motor at the same time, so that after pressing the reverse switch and then pressing the self-driving switch, the first motor and the second motor rotate in reverse, and the first wheel and the second wheel rotate synchronously in reverse to achieve reversing; when the gardening tool moves backward by self-driving, the voice prompt and the light prompt are started synchronously.

[0009] As a further improvement of the present invention, the light prompt includes a left turn signal and a right turn signal installed on the main body. When the gardening tool turns left, the left turn signal lights up and flashes; when the gardening tool turns right, the right turn signal lights up and flashes.

[0010] As a further improvement of the present invention, the left turn signal includes a front left turn signal located at the front end of the main body and a rear left turn signal located at the rear end of the main body. The right turn signal includes a front right turn signal located at the front end of the main body and a rear right turn signal located at the rear end of the main body. When the gardening tool turns left frontward or right frontward, the front left turn signal or the front right turn signal lights up and flashes; when the gardening tool turns left backward or right backward, the rear left turn signal or the rear right turn signal lights up and flashes.

[0011] As a further improvement of the present invention, the gardening tool is provided with an operation panel. The left turn signal further includes a panel left turn signal installed on the operation panel, and the right turn signal further includes a panel right turn signal installed on the operation panel. When the gardening tool turns left frontward, the panel left turn signal lights up and flashes synchronously with the front left turn signal; when the gardening tool turns right frontward, the panel right turn signal lights up and flashes synchronously with the front right turn signal; when the gardening tool turns left backward, the panel left turn signal lights up and flashes synchronously with the rear left turn signal; when the gardening tool turns right backward, the panel right turn signal lights up and flashes synchronously with the rear right turn signal.

[0012] As a further improvement of the present invention, after operating the first control component, after the prompting system works for a first preset time, the first wheel stops rotating, and the second wheel continues to rotate around the first wheel to achieve steering; after operating the second control component, after the prompting system works for the first preset time, the second wheel stops rotating, and the first wheel continues to rotate around the second wheel to achieve steering.

[0013] As a further improvement of the present invention, the first preset time is 3 seconds.

[0014] As a further improvement of the present invention, when continuously operating the first control component and / or the second control component reaches a second preset time, the control board defaults that the gardening tool is making a continuous circular motion, and the control board immediately controls the prompting system to stop working.

[0015] As a further improvement of the present invention, the second preset time is 7 to 14 seconds.

[0016] The beneficial effects of the present invention are as follows: By installing a voice prompt device and a light prompt device on the main body of the gardening tool of the present invention, when operating the gardening tool to turn, the voice prompt device and the light prompt device can be used to issue warnings to remind people or animals to keep a certain safe distance and avoid being injured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the snow sweeper of the present invention.

[0018] Figure 2 is Figure 1 a partial exploded view of the snow sweeper shown.

[0019] Figure 3 is Figure 1 a side view of the snow sweeper shown.

[0020] Figure 4 is Figure 2 an exploded view of the first handle in.

[0021] Figure 5 is Figure 4 a perspective view of the first micro switch in.

[0022] Figure 6 is Figure 4 a perspective view of the first steering switch in.

[0023] Figure 7 is a logic block diagram when the snow sweeper is moving forward normally by itself.

[0024] Figure 8 is a logic block diagram when the snow sweeper is moving backward normally by itself.

[0025] Figure 9 It is a logic block diagram when the snow sweeper turns left forward normally.

[0026] Figure 10 It is a logic block diagram when the snow sweeper turns right forward normally.

[0027] Figure 11 It is a logic block diagram when the snow sweeper turns left backward normally.

[0028] Figure 12 It is a logic block diagram when the snow sweeper turns right backward normally. Specific Embodiment

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] The present invention discloses a gardening tool having a steering system and a prompting system. The steering system is used to control the wheels of the gardening tool to turn flexibly, and the prompting system is used to give a warning to people or animals around before turning, reminding people or animals to keep a certain safe distance to avoid being injured. The gardening tool may be a snow sweeper, a wheelbarrow or a lawn mower. Of course, the steering system and the prompting system may also be applied to other self-propelled machines without a steering handrail or with difficult steering, which will not be described in detail here and are not subject to any restrictions. For the sake of clear description, in the following description part, the steering system and the prompting system applied to a snow sweeper will be taken as an example to describe in detail the specific structures and specific working principles of the steering system and the prompting system.

[0031] As Figures 1 to 6 shown, the snow sweeper 100 includes a power system 10, a handle assembly 20 disposed at the rear side of the power system 10, and a self-propelled system and a main blade system connected to the power system 10. The power system 10 includes a main body 11, an energy device 12 and a driving device (not shown). The energy device 12 is a battery pack group for providing power for the driving device to make the driving device work. The driving device is a main blade motor for providing driving force for the main blade system.

[0032] The handle assembly 20 extends upward and backward from the rear of the main body 11. The handle assembly 20 includes a first handle 21 and a second handle 22 which are arranged opposite to each other left and right. An operation panel 23 is connected between the top of the first handle 21 and the top of the second handle 22. An operation handle 24 is provided on the operation panel 23. The operation handle 24 can be used to control the snow sweeper 100 to move forward or backward, as well as the speed of forward or backward movement; of course, it should not be limited to this. Thus, it can be seen that the handle assembly 20 can not only be used to push the snow sweeper 100 forward, but also change the traveling speed and direction of the snow sweeper 100 by means of the operation panel 23, which is convenient for the operator to operate. In addition, anti-slip portions 25 can also be provided at the tops of the first handle 21 and the second handle 22 to enhance the feel of the operator during operation.

[0033] The self-propelled system includes wheels 31 installed on the main body 11 and a self-propelled switch 32 installed on the handle assembly 20. The self-propelled switch 32 is used to control the start and stop of the wheels 31. The wheels 31 include a first wheel 311 and a second wheel 312 arranged left and right. In other words, the first wheel 311 is fixedly installed on the left side of the main body 11, and the second wheel 312 is fixedly installed on the right side of the main body 11. On the one hand, it plays a supporting role for the main body 11, and on the other hand, it can drive the main body 11 and even the entire snow sweeper 100 to move.

[0034] The self-propelled switch 32 is arranged in a push-button manner and is installed on the top of the first handle 21 or the second handle 22. During operation, it can be directly pressed downward. Considering the differences in individual operation habits, the self-propelled switch 32 is usually installed above the second handle 22 to conform to the operation habits of most people, but it should not be limited to this. In this embodiment, only one self-propelled switch 32 is provided, which is used to synchronously control the rotation of the first wheel 311 and the second wheel 312; of course, in other embodiments, the self-propelled switch 32 can also be provided as two, which are respectively installed on the first handle 21 and the second handle 22 and are used to respectively control the rotation of the first wheel 311 and the second wheel 312, and no limitation is made here.

[0035] The snow sweeper 100 further includes a steering system, which cooperates with the self-propelled system to control the movement and steering of the first wheel 311 and the second wheel 312. Preferably, the steering system includes a power assembly 41, a control board 42, and a control component. The power assembly 41 is fixedly connected to the wheels 31 and is used to control the rotation of the wheels 31. The control board 42 is installed and fixed inside the main body 11 and is communicatively connected to the power assembly 41 and the control component, and is used to control the start or stop of the power assembly 41. The control component is used to send a control signal to the control board 42 so that the control board 42 can control the corresponding power assembly 41 to start or stop according to the received signal instruction.

[0036] The power assembly 41 includes a traveling motor for driving the wheels 31 to rotate. The traveling motor includes a first motor 411 and a second motor 412 connected to the main body 11. The first wheel 311 and the second wheel 312 are respectively connected to the output ends of the first motor 411 and the second motor 412.

[0037] The control board 42 is electrically connected to the first motor 411 and the second motor 412 respectively, and is used to control the start and stop of the first motor 411 and the second motor 412 respectively. That is to say, the control board 42 can control the start or stop of the first motor 411 alone, can also control the start or stop of the second motor 412 alone, or can control the start or stop of the first motor 411 and the second motor 412 at the same time. The working states of the first motor 411 and the second motor 412 do not affect each other.

[0038] As Figure 3 And Figure 4 Combined with Figure 1 As shown, the control assembly includes a first control assembly 43 for controlling the start and stop of the first motor 411 and a second control assembly 44 for controlling the start and stop of the second motor 412. The first control assembly 43 and the second control assembly 44 are both installed on the main body 11. The first control assembly 43 includes the aforementioned first handle 21, a first microswitch 431 and a first steering switch 432 provided below the first handle 21. The first steering switch 432 is located below the first microswitch 431 and is used to trigger the first microswitch 431 after operating (pressing upward) the first steering switch 432, so that the first motor 411 stops rotating.

[0039] The second control assembly 44 includes the aforementioned second handle 22, a second microswitch 441 and a second steering switch 442 provided below the second handle 22. The second steering switch 442 is located below the second microswitch 441 and is used to trigger the second microswitch 441 after operating (pressing upward) the second steering switch 442, so that the second motor 412 stops rotating.

[0040] The first steering switch 432, the second steering switch 442 and the self-propelled switch 32 are all electrically connected to the control board 42. Thus, when the operator operates the first steering switch 432, the second steering switch 442 or the self-propelled switch 32, the control board 42 can receive the signals sent by the first steering switch 432, the second steering switch 442 or the self-propelled switch 32, and control the corresponding first motor 411 and / or second motor 412 to work according to the received signals.

[0041] Since the first microswitch 431 and the second microswitch 441 have the same structure, and the first steering switch 432 and the second steering switch 442 have the same structure, the following will take the first microswitch 431 and the first steering switch 432 as examples to elaborate on the specific structures of the microswitch and the steering switch, as well as the assembly relationship between the microswitch, the steering switch and the handle.

[0042] As Figure 4 shown in Figure 5 Figure, the first microswitch 431 includes a body portion 4311 and a trigger portion 4312 located below the body portion 4311. The body portion 4311 is assembled and fixed to the first handle 21 by bolts 70. Specifically, two mounting holes 4313 are formed in the body portion 4311, and the two mounting holes 4313 are located on the same diagonal line of the body portion 4311, so as to ensure that the first microswitch 431 can be stably mounted on the fixing member 211 at the bottom of the first handle 21. The trigger portion 4312 is elastically arranged. After the first steering switch 432 is pressed upward under an external force, the trigger portion 4312 is pressed and deformed, causing the first microswitch 431 to be triggered; and after the first steering switch 432 is released, the trigger portion 4312 returns to its initial state under its own elastic force, and at this time the first microswitch 431 returns to the off state.

[0043] As Figure 4 shown in Figure 6 Figure, the first steering switch 432 includes a pressing portion 4321, an assembling portion 4322 connected to the pressing portion 4321, and a pushing block 4323 provided on the pressing portion 4321. The pressing portion 4321 is arranged in a pressing manner and is located below the trigger portion 4312. The assembling portion 4322 is movably fixed on the first handle 21, so that the pressing portion 4321 can rotate relative to the first handle 21. The pushing block 4323 protrudes toward the first microswitch 431. Thus, when the pressing portion 4321 is pressed upward, the pushing block 4323 can push the trigger portion 4312, causing the first microswitch 431 to be triggered.

[0044] A return spring 433 is also installed on the first steering switch 432. The return spring 433 is used to elastically deform when the pressing portion 4321 is pressed upward; and after the pressing portion 4321 is released, it drives the first steering switch 432 to return to its initial state, causing the first microswitch 431 to be turned off. In this embodiment, the return spring 433 is a torsion spring, but it should not be limited thereto. During installation, hexagon bolts 71 are respectively passed through the return spring 433 and the assembling portion 4322 to be assembled and fixed to the fixing structure 212 at the bottom of the first handle 21.

[0045] The control assembly also includes the aforementioned self-propelled switch 32, which is connected to the first motor 411 and the second motor 412 at the same time. After pressing the self-propelled switch 32, the first motor 411 and the second motor 412 are started synchronously, and drive the first wheel 311 and the second wheel 312 to rotate synchronously, thereby achieving self-propelled movement. As the assembly and fixation of the self-propelled switch 32 and the handle can refer to the existing technical solutions, it will not be described in detail here.

[0046] like Figure 1 and Figure 2 As shown, the control component also includes a reversing switch 45, which is arranged on the operating panel 23 and is located beside the operating handle 24. The reversing switch 45 is arranged in a button-like manner and is connected to the first motor 411 and the second motor 412 at the same time, so that after pressing the reversing switch 45, pressing the self-propelled switch 32 can make the first motor 411 and the second motor 412 rotate in the opposite direction, and the first wheel 311 and the second wheel 312 rotate in the opposite direction synchronously to achieve reversing. In the present application, the first motor 411 and the second motor 412 are preferably hub motors; of course, the first motor 411 and the second motor 412 can also be low-speed motors, as long as they can achieve conventional self-propelled, stop, and turn functions, and there is no limitation here.

[0047] The snow blower 100 further includes a prompt system installed on the main body 11, and the prompt system includes a voice prompter 51 and a light prompter. The voice prompter 51 is a buzzer that can emit prompt sounds such as beep, beep, etc.

[0048] The voice prompter 51 and the light prompter are electrically connected to the control panel 42, respectively, so that the control panel 42 controls the start and stop of the voice prompter 51 and the light prompter according to the instructions issued by the first control component 43 or the second control component 44. When the snowplow 100 moves forward by itself, the voice prompter 51 and the light prompter all stop working; when the snowplow 100 moves backward by itself or turns, the voice prompter 51 and the light prompter start synchronously.

[0049] The light indicator includes a left turn signal and a right turn signal installed on the main body 11. When the snowplow 100 turns left, the left turn signal is lit and flashes, and when the snowplow 100 turns right, the right turn signal is lit and flashes. Specifically, the left turn signal includes a front left turn signal 521 located at the front end of the main body 11, a rear left turn signal 522 located at the rear end of the main body 11, and a panel left turn signal 523 installed on the operation panel 23. The right turn signal includes a front right turn signal 524 located at the front end of the main body 11, a rear right turn signal 525 located at the rear end of the main body 11, and a panel right turn signal 526 installed on the operation panel 23.

[0050] When the snow sweeper 100 turns left forward, the left panel turn signal lamp 523 and the front left turn signal lamp 521 are lit and flash synchronously; when the snow sweeper 100 turns right forward, the right panel turn signal lamp 526 and the front right turn signal lamp 524 are lit and flash synchronously; when the snow sweeper 100 turns left backward, the left panel turn signal lamp 523 and the rear left turn signal lamp 522 are lit and flash synchronously; when the snow sweeper 100 turns right backward, the right panel turn signal lamp 526 and the rear right turn signal lamp 525 are lit and flash synchronously.

[0051] In this embodiment, the steering system is combined with the prompting system. When the first control component 43 and / or the second control component 44 are operated to control the wheels 31 to move so that the whole machine steers, the prompting system is immediately triggered, and there is no need to operate other buttons to trigger the prompting system, which is convenient to operate and can achieve the effect of necessarily prompting during steering.

[0052] Furthermore, as a preferred solution, in this embodiment, after the first control component 43 and / or the second control component 44 are operated, the prompting system is first triggered to work to give a warning. After a first preset time, the steering system starts to work, that is, after the control component is operated, the prompting system immediately works, and after an interval of the first preset time, the wheels 31 start to move for steering. With such a setting, the effect of first prompting and then steering can be achieved. The purpose of setting the first preset time is as follows: First, it can be confirmed that the operator does not make a misoperation and indeed needs to steer; second, it can give a certain time for pedestrians and the like to make an avoidance in advance, leaving sufficient time for pedestrians and the like to avoid, further improving the use safety of the whole machine. The first preset time in this embodiment is preferably 2 to 4 seconds, and more preferably 3 seconds.

[0053] The operating principles of the steering system 40 and the prompting system will be briefly described below:

[0054] Normal forward self-propelled: As Figure 7 shown, after the power supply is started, the self-propelled switch 32 is pressed, and the self-propelled switch 32 sends a self-propelled signal to the control board 42. The control board 42 controls the first motor 411 and the second motor 412 to rotate synchronously according to the self-propelled signal. Subsequently, the first wheel 311 and the second wheel 312 start to rotate driven by the first motor 411 and the second motor 412. At this time, the whole snow sweeper 100 self-propels forward. During the process of the snow sweeper 100 self-propelling forward, the buzzer 51 and the lighting prompt device all stop working (i.e., there is no voice prompt and no indicator light flashing).

[0055] Normal backward self-propelled: As Figure 8As shown, after the power is turned on, first press the reverse switch 45. The reverse switch 45 sends a reverse signal to the control board 42. The control board 42 sends a start signal to the buzzer 51, the left panel turn signal 523, the right panel turn signal 526, the left rear turn signal 522, and the right rear turn signal 525. Then press the self-propelled switch 32. The self-propelled switch 32 sends a self-propelled signal to the control board 42. The control board 42 controls the buzzer 51 to be powered on and emits an alarm voice (beep, beep, beep...). The left panel turn signal 523, the right panel turn signal 526, the left rear turn signal 522, and the right rear turn signal 525 are powered on and flash simultaneously. After the first preset time, the control board 42 controls the first motor 411 and the second motor 412 to rotate in reverse according to the received self-propelled signal and reverse signal. Subsequently, the first wheel 311 and the second wheel 312 start to rotate in reverse driven by the first motor 411 and the second motor 412. At this time, the entire snow sweeper 100 reverses backward. When the snow sweeper 100 stops reversing, the buzzer 51 stops the voice prompt, and the left panel turn signal 523, the right panel turn signal 526, the left rear turn signal 522, and the right rear turn signal 525 stop flashing.

[0056] Of course, when reversing, the reverse switch 45 can also be pressed first. The reverse switch 45 sends a reverse signal to the control board 42. The control board 42 directly controls the buzzer 51 to be powered on and emits an alarm voice (beep, beep, beep...). The left panel turn signal 523, the right panel turn signal 526, the left rear turn signal 522, and the right rear turn signal 525 are powered on and flash simultaneously. After the first preset time, then press the self-propelled switch 32 to make the entire snow sweeper 100 reverse backward.

[0057] Normal left front turn: After the power is turned on, press the self-propelled switch 32 to make the whole machine move forward automatically. If you want to turn to the left front during the forward movement of the whole machine, then press the first steering switch 432. The first steering switch 432 triggers the first micro switch 431 and sends a steering signal to the control board 42. The control board 42 controls the buzzer 51, the left panel turn signal 523, and the front left turn signal 521 to work according to the received signal. The buzzer 51 is powered on and emits an alarm voice (beep, beep, beep...), the left panel turn signal 523 and the front left turn signal 521 are powered on and flash simultaneously. After the first preset time (that is, 3 seconds after pressing the first steering switch 432 and the prompt system works), the control board 42 controls the first motor 411 to stop rotating. At this time, the second motor 412 continues to rotate. Therefore, the first wheel 311 stops rotating, and the second wheel 312 continues to rotate with the first wheel 311 as the center. At this time, the entire snow sweeper 100 turns to the left front.

[0058] Of course, as Figure 9As shown, in other embodiments, the process of the whole machine turning to the front left can also be as follows: After the power is started, first tightly hold the first steering switch 432 upward. The first steering switch 432 triggers the first micro switch 431 and sends a steering signal to the control board 42. The control board 42 controls the first motor 411 according to the received steering signal, so that the first motor 411 is in the off state. At the same time, the control board 42 sends a start signal to the buzzer 51, the left panel turn signal 523 and the front left turn signal 521. However, at this time, the buzzer 51, the left panel turn signal 523 and the front left turn signal 521 are in the unpowered state. Then press the self-propelled switch 32. The self-propelled switch 32 sends a self-propelled signal to the control board 42. The control board 42 controls the buzzer 51 to be powered on and an alarm voice (beep, beep, beep) appears, and the left panel turn signal 523 and the front left turn signal 521 are powered on and flash simultaneously. After the first preset time, the control board 42 controls the second motor 412 to be powered on and start rotating. Since the first steering switch 432 is operated, even if the self-propelled switch 32 is operated, the first motor 411 still remains in the off state and does not rotate. At this time, the first wheel 311 does not rotate, and the second wheel 312 continues to rotate with the first wheel 311 as the center. At this time, the whole snow sweeper 100 turns to the front left. When the snow sweeper 100 stops turning to the front left (that is, after the first steering switch 432 is released), the buzzer 51 stops the voice prompt, and the left panel turn signal 523 and the front left turn signal 521 stop flashing.

[0059] Of course, after the first steering switch 432 is operated, the buzzer 51, the left panel turn signal 523 and the front left turn signal 521 can also be directly powered on and start working according to the received signal. Subsequently, the self-propelled switch 32 is operated to control the wheels 31 to start moving. The movement of the wheels 31 is still set after the buzzer 51, the left panel turn signal 523 and the front left turn signal 521 work for a period of time. This setting is more convenient for situations where the operator believes that the next step is to turn, etc. when the machine is in the stopped state. Specifically, for example, when the whole machine is parked on a curve or at the starting position of a curve, when the whole machine needs to continue working later, the first steering switch 432 can be pressed first, and then the self-propelled switch 32 can be pressed, so that the whole machine starts to move in a turning state, rather than having to move forward a certain distance before starting to turn.

[0060] Normal right - front turn: After the power is started, press the self - driving switch 32 to make the whole machine move forward automatically. During the forward movement of the whole machine, if you want to turn to the right - front, press the second steering switch 442. The second steering switch 442 triggers the second micro - switch 441 and sends a steering signal to the control board 42. The control board 42 controls the buzzer 51, the right - hand panel turn signal lamp 526 and the front - right turn signal lamp 524 to work according to the received signal. The buzzer 51 is powered on and gives an alarm voice (beep, beep, beep...), and the right - hand panel turn signal lamp 526 and the front - right turn signal lamp 524 are powered on and flash simultaneously. After the first preset time (that is, 3 seconds after pressing the second steering switch 442 and the prompt system works), the control board 42 controls the second motor 412 to stop rotating. At this time, the first motor 411 continues to rotate, so the second wheel 312 stops rotating and the first wheel 311 continues to rotate around the second wheel 312. At this time, the whole snow sweeper 100 turns to the right - front.

[0061] Of course, as Figure 10 shown, in other embodiments, the process of the whole machine turning to the right - front can also be: After the power is started, first hold the second steering switch 442 upwards tightly. The second steering switch 442 triggers the second micro - switch 441 and sends a steering signal to the control board 42. The control board 42 controls the second motor 412 according to the received steering signal, making the second motor 412 in an off state. At the same time, the control board 42 sends a start signal to the buzzer 51, the right - hand panel turn signal lamp 526 and the front - right turn signal lamp 524, but at this time, the buzzer 51, the right - hand panel turn signal lamp 526 and the front - right turn signal lamp 524 are in an un - powered - on state; then press the self - driving switch 32. The self - driving switch 32 sends a self - driving signal to the control board 42. The control board 42 controls the buzzer 51 to be powered on and gives an alarm voice (beep, beep, beep...), and the right - hand panel turn signal lamp 526 and the front - right turn signal lamp 524 are powered on and flash simultaneously. After the first preset time, the control board 42 controls the first motor 411 to be powered on and start rotating. Since the second steering switch 442 is operated, even if the self - driving switch 32 is operated, the second motor 412 still remains in an off state and does not rotate. At this time, the second wheel 312 does not rotate and the first wheel 311 continues to rotate around the second wheel 312. At this time, the whole snow sweeper 100 turns to the right - front. When the snow sweeper 100 stops turning to the right - front (that is, after releasing the second steering switch 442), the buzzer 51 stops the voice prompt, and the right - hand panel turn signal lamp 526 and the front - right turn signal lamp 524 stop flashing.

[0062] Of course, after operating the second steering switch 442, the buzzer 51, the right panel turn signal 526, and the front right turn signal 524 can also be directly powered on and start working according to the received signals. Subsequently, operating the self-propelled switch 32 controls the wheels 31 to start moving. The movement of the wheels 31 is still set after the buzzer 51, the right panel turn signal 526, and the front right turn signal 524 have worked for a period of time. This setting is more convenient for situations where the operator believes that the next step requires turning, etc. when the machine is in a stopped state. Specifically, for example, when the whole machine is parked on a curve or at the starting position of a curve, when the whole machine needs to continue working subsequently, the second steering switch 442 can be pressed first, and then the self-propelled switch 32 can be pressed, so that when the whole machine starts to move, it is in a turning state, without having to move forward a certain distance first and then start turning.

[0063] Normal left-rear turn: After the power is started, press the reverse switch 45 and then press the self-propelled switch 32. At this time, as described above, the control board 42 controls the buzzer 51 to be powered on and an alarm voice appears. The left panel turn signal 523, the right panel turn signal 526, the rear left turn signal 522, and the rear right turn signal 525 are powered on and flash simultaneously. After the first preset time, the whole machine moves backward. During the backward movement of the whole machine, if you want to turn to the left rear, press the first steering switch 432. The first steering switch 432 triggers the first micro switch 431 and sends a steering signal to the control board 42. The control board 42 controls the buzzer 51, the left panel turn signal 523, and the rear left turn signal 522 to continue working according to the received signals. The buzzer 51 continues to emit an alarm voice, and the left panel turn signal 523 and the rear left turn signal 522 continue to flash. After the first preset time (i.e., 3 seconds after pressing the first steering switch 432 and the prompt system works), the control board 42 controls the first motor 411 to stop rotating. At this time, the second motor 412 continues to rotate. Therefore, the first wheel 311 stops rotating, and the second wheel 312 continues to rotate with the first wheel 311 as the center. At this time, the whole snow sweeper 100 turns to the left rear. When turning during the reverse process, after pressing the first steering switch 432, the control board 42 receives the information of the first steering switch 432. At this time, the second steering switch 442 has not been operated. Therefore, the control board 42 controls the buzzer 51, the left panel turn signal 523, and the rear left turn signal 522 to continue working, and controls the originally working right panel turn signal 526 and rear right turn signal 525 to stop working.

[0064] Of course, as Figure 11As shown, in other embodiments, the process of the whole machine turning to the left rear can also be as follows: after the power is started, first press the reverse switch 45, and the reverse switch 45 sends a reverse signal to the control board 42. The control board 42 sends a start signal to the buzzer 51, the left panel turn signal 523, the right panel turn signal 526, the left rear turn signal 522, and the right rear turn signal 525. Then, tightly hold the first steering switch 432 upward. The first steering switch 432 triggers the first micro switch 431 and sends a steering signal to the control board 42. The control board 42 controls the first motor 411 according to the received steering signal, so that the first motor 411 is in the off state. At the same time, the control board 42 continues to send a start signal to the buzzer 51, the left panel turn signal 523, and the left rear turn signal 522. However, at this time, the buzzer 51, the left panel turn signal 523, and the left rear turn signal 522 are in the unpowered state. Finally, press the self-propelled switch 32. The self-propelled switch 32 sends a self-propelled signal to the control board 42. The control board 42 controls the buzzer 51 to be powered on and emits an alarm voice, and the left panel turn signal 523 and the left rear turn signal 522 are powered on and blink simultaneously. After the first preset time, the control board 42 controls the second motor 412 to be powered on and start to rotate in the reverse direction according to the received steering signal and reverse signal. Since the first steering switch 432 is operated, even if the self-propelled switch 32 is operated, the first motor 411 still remains in the off state and does not rotate. At this time, the first wheel 311 does not rotate, and the second wheel 312 continues to rotate with the first wheel 311 as the center. At this time, the whole snow sweeper 100 turns to the left rear.

[0065] Of course, after operating the first steering switch 432, the buzzer 51, the left panel turn signal lamp 523, and the left rear turn signal lamp 522 can also be directly powered on and start working according to the received signals. Subsequently, operating the self-propelled switch 32 controls the wheels 31 to start moving. The movement of the wheels 31 is still set after the buzzer 51, the left panel turn signal lamp 523, and the left rear turn signal lamp 522 have worked for a period of time. Normal right rear turn: After the power is started, press the reverse switch 45 and then press the self-propelled switch 32. The control board 42 controls the buzzer 51 to be powered on and an alarm voice appears. The left panel turn signal lamp 523, the right panel turn signal lamp 526, the left rear turn signal lamp 522, and the right rear turn signal lamp 525 are powered on and flash simultaneously. After the first preset time, the whole machine reverses backward. During the backward movement of the whole machine, if you want to turn to the right rear, press the second steering switch 442. The second steering switch 442 triggers the second micro switch 441 and sends a steering signal to the control board 42. The control board 42 controls the buzzer 51, the right panel turn signal lamp 526, and the right rear turn signal lamp 525 to continue working according to the received signals. The buzzer 51 continues to emit an alarm voice, and the right panel turn signal lamp 526 and the right rear turn signal lamp 525 continue to flash. After the first preset time (i.e., 3 seconds after pressing the second steering switch 442 and the prompt system works), the control board 42 controls the second motor 412 to stop rotating. At this time, the first motor 411 continues to rotate. Therefore, the second wheel 312 stops rotating, and the first wheel 311 continues to rotate around the second wheel 312. At this time, the whole snow sweeper 100 turns to the right rear. When turning during the reverse process, after pressing the second steering switch 442, the control board 42 receives the information of the second steering switch 442. At this time, the first steering switch 432 has not been operated. Therefore, the control board 42 controls the buzzer 51, the right panel turn signal lamp 526, and the right rear turn signal lamp 525 to continue working, and controls the originally working left panel turn signal lamp 523 and the left rear turn signal lamp 522 to stop working.

[0066] Of course, such as Figure 12As shown, in other embodiments, the process of the whole machine turning to the right rear can also be as follows: after the power is turned on, first press the reverse switch 45. The reverse switch 45 sends a reverse signal to the control board 42. The control board 42 sends a start signal to the buzzer 51, the left panel turn signal 523, the right panel turn signal 526, the left rear turn signal 522, and the right rear turn signal 525. Then, firmly hold the second steering switch 442 upward. The second steering switch 442 triggers the second micro switch 441 and sends a steering signal to the control board 42. The control board 42 controls the second motor 412 according to the received steering signal, making the second motor 412 in an off state. At the same time, the control board 42 continues to send a start signal to the buzzer 51, the right panel turn signal 526, and the right rear turn signal 525. However, at this time, the buzzer 51, the right panel turn signal 526, and the right rear turn signal 525 are in an unpowered state. Finally, press the self-propelled switch 32. The self-propelled switch 32 sends a self-propelled signal to the control board 42. The control board 42 controls the buzzer 51 to be powered on and emits an alarm voice, and the right panel turn signal 526 and the right rear turn signal 525 are powered on and flash simultaneously. After the first preset time, the control board 42 controls the first motor 411 to be powered on and start rotating in the reverse direction according to the received steering signal and reverse signal. Since the second steering switch 442 is operated, even if the self-propelled switch 32 is operated, the second motor 412 still remains in an off state and does not rotate. At this time, the second wheel 312 does not rotate, and the first wheel 311 continues to rotate around the second wheel 312. At this time, the whole snow sweeper 100 turns to the right rear.

[0067] Of course, after operating the second steering switch 442, the buzzer 51, the right panel turn signal 526, and the right rear turn signal 525 can also be directly powered on and start working according to the received signals. Subsequently, operate the self-propelled switch 32 to control the wheels 31 to start moving. The movement of the wheels 31 is still set after the buzzer 51, the right panel turn signal 526, and the right rear turn signal 525 work for a period of time.

[0068] In this embodiment, when the whole machine turns left or right to the rear, after pressing the first steering switch 432 or the second steering switch 442, the corresponding side light indicator is retained to continue working, that is, one of the panel left turn signal lamp 523 and the rear left turn signal lamp 522, and the panel right turn signal lamp 526 and the rear right turn signal lamp 525 is retained to continue working. However, in other embodiments, when the whole machine turns left or right to the rear, the reverse switch 45 can also be pressed and then the self-propelled switch 32 can be pressed. The control board 42 controls the buzzer 51 to be powered on and an alarm voice appears. The panel left turn signal lamp 523, the panel right turn signal lamp 526, the rear left turn signal lamp 522, and the rear right turn signal lamp 525 are powered on and flash simultaneously. After the first preset time, the whole machine reverses backward, and during the turning process, the whole machine always keeps the panel left turn signal lamp 523, the rear left turn signal lamp 522, the panel right turn signal lamp 526, and the rear right turn signal lamp 525 working, that is, no matter which direction it turns, at this time, the panel left turn signal lamp 523, the rear left turn signal lamp 522, the panel right turn signal lamp 526, and the rear right turn signal lamp 525 always work to achieve the prompting effect.

[0069] It can be seen from this: The present invention uses a buzzer 51, four steering indicator lights, two microswitches, two steering switches, a reverse switch 45, and a self-propelled switch 32 to complete the steering and prompting of the whole snow sweeper 100. When the snow sweeper 100 is working, it can not only prompt the operator that the operation is correct, but also prompt people or animals around to avoid being injured.

[0070] In the present invention, a light control structure (not shown) can also be provided on the main body 11 of the snow sweeper 100. This light control structure can control the left turn signal lamp and the right turn signal lamp to increase in brightness and the buzzer 51 to increase in sound as the ambient light becomes darker, and control the left turn signal lamp and the right turn signal lamp to decrease in brightness and the buzzer 51 to decrease in sound when the ambient light becomes brighter.

[0071] In addition, when the steering switch (including the first steering switch 432 and the second steering switch 442) and the self-propelled switch 32 are continuously pressed for more than the second preset time, the control board 42 defaults that the whole snow sweeper 100 is making a continuous circular motion (such as cleaning a garden or a whole machine test). At this time, the control board 42 immediately controls the buzzer 51 and the steering indicator lights to stop the steering prompt. The duration of the second preset time is longer than the duration of the first preset time. Preferably, the second preset time is 7 to 14 seconds. Specifically, the snow sweeper 100 first gives an alarm prompt within the first preset time. Secondly, the wheels 31 of the snow sweeper 100 start to move for steering after the first preset time. If the steering switch and the self-propelled switch 32 are still triggered for a duration of 5 to 10 seconds after the whole machine starts to turn, then the buzzer 51 and the steering indicator lights are controlled to stop the steering prompt.

[0072] This is because: when performing a whole-machine test or some household use, there will be situations where circular motion or figure-eight motion needs to be carried out. At this time, it is necessary to frequently press or continuously press the steering switch. If the buzzer 51 keeps beeping or the steering indicator light keeps flashing at this time, it will be very troublesome. Usually, if the snow sweeper 100 simply turns, it only needs to continuously press the steering switch for a few seconds to complete the turn. If the steering switch is continuously pressed for more than a certain time, it means that the snow sweeper 100 may be performing circular motion or figure-eight motion. At this time, the control board 42 can immediately control the buzzer 51 and the steering indicator light to stop working. In other embodiments, if the control board 42 repeatedly and alternately receives signals transmitted by the first steering switch 432 and the second steering switch 442 within a short period of time, that is, the first steering switch 432 and the second steering switch 442 are continuously and alternately operated, it is also default that the snow sweeper is performing figure-eight motion. At this time, the control board 42 also immediately controls the buzzer 51 and the steering indicator light to stop the steering prompt.

[0073] As Figure 1 shown, the main blade system includes a snow sweeping system and a snow throwing system. The snow sweeping system includes a snow sweeping cover 61 and a snow rolling blade assembly (not shown) covered in the snow sweeping cover 61. The main blade motor outputs driving force to the snow rolling blade assembly to make the snow rolling blade assembly start to work. The snow throwing system includes a snow throwing impeller (not shown), a snow throwing cylinder 62 covering the outside of the snow throwing impeller, and a snow discharging cylinder assembly 63 connected to the snow throwing cylinder 62. The snow throwing impeller is used to throw the snow swept into the snow throwing cylinder 62 by the snow rolling blade assembly out from the snow discharging cylinder assembly 63. Since the structures of the snow rolling blade assembly, the snow sweeping cover 61, the snow throwing impeller, the snow throwing cylinder 62 and the snow discharging cylinder assembly 63 can all adopt existing technical solutions, they will not be described in detail here.

[0074] In summary, the snow sweeper 100 of the present invention installs a voice prompt device 51 and a light prompt device on the main body 11. Thus, when operating the snow sweeper 100 to turn, the voice prompt device 51 and the light prompt device can be used to give a warning first, reminding people or animals to keep a certain safe distance to avoid being injured, and then turn. The turn will definitely be prompted, improving the use safety of the snow sweeper 100; in addition, there is no need to press other buttons to make the snow sweeper 100 achieve prompts. As long as the steering switch is pressed, prompts and turning can be achieved, which is simple and easy to operate.

[0075] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A gardening tool, comprising a main body, wheels and a steering system mounted on the main body. The wheels include a first wheel and a second wheel arranged left and right, and the steering system is used to control the first wheel and the second wheel to achieve steering. Characterized in that: The steering system includes a first motor for driving the first wheel to rotate, a second motor for driving the second wheel to rotate, a first control component for controlling the start and stop of the first motor, and a second control component for controlling the start and stop of the second motor; the gardening tool further includes a prompt system mounted on the main body. After operating the first control component, after the prompt system works for a first preset time, the first motor stops rotating, the second motor continues to rotate, the first wheel stops rotating, and the second wheel continues to rotate with the first wheel as the center to achieve steering; after operating the second control component, after the prompt system works for the first preset time, the second motor stops rotating, the first motor continues to rotate, the second wheel stops rotating, and the first wheel continues to rotate with the second wheel as the center to achieve steering. The steering system further includes a self-propelled switch, which is connected to both the first motor and the second motor at the same time, so that after pressing the self-propelled switch, the first motor and the second motor are started synchronously and drive the first wheel and the second wheel to rotate synchronously to achieve self-propulsion.

2. The gardening tool according to claim 1, Characterized in that: The prompt system includes a voice prompter and a light prompter. When the gardening tool moves forward automatically, the voice prompter and the light prompter both stop working.

3. The gardening tool according to claim 2, Characterized in that: The steering system further includes a reverse switch, which is connected to both the first motor and the second motor at the same time, so that after pressing the reverse switch and then pressing the self-propelled switch, the first motor and the second motor rotate in the reverse direction, and the first wheel and the second wheel rotate synchronously in the reverse direction to achieve reverse; when the gardening tool moves backward automatically, the voice prompter and the light prompter are started synchronously.

4. The gardening tool according to claim 2, Characterized in that: The light prompter includes a left turn signal and a right turn signal mounted on the main body. When the gardening tool turns left, the left turn signal lights up and flashes. When the gardening tool turns right, the right turn signal lights up and flashes.

5. The gardening tool according to claim 4, Characterized in that: The left turn signal includes a front left turn signal located at the front end of the main body and a rear left turn signal located at the rear end of the main body. The right turn signal includes a front right turn signal located at the front end of the main body and a rear right turn signal located at the rear end of the main body. When the gardening tool turns left front or right front, the front left turn signal or the front right turn signal lights up and flashes; when the gardening tool turns left rear or right rear, the rear left turn signal or the rear right turn signal lights up and flashes.

6. The gardening tool according to claim 5, Characterized in that: The gardening tool is provided with an operation panel. The left turn signal further includes a panel left turn signal installed on the operation panel, and the right turn signal further includes a panel right turn signal installed on the operation panel. When the gardening tool turns to the front left, the panel left turn signal lights up and flashes synchronously with the front left turn signal; when the gardening tool turns to the front right, the panel right turn signal lights up and flashes synchronously with the front right turn signal; when the gardening tool turns to the rear left, the panel left turn signal lights up and flashes synchronously with the rear left turn signal; when the gardening tool turns to the rear right, the panel right turn signal lights up and flashes synchronously with the rear right turn signal.

7. The gardening tool according to claim 1, characterized in that: The first preset time is 3 seconds.

8. The gardening tool according to claim 1, characterized in that: The steering system further includes a control board, which is electrically connected to the first motor and the second motor respectively, and is used to control the start and stop of the first motor and the second motor respectively. When the first control component and / or the second control component are continuously operated for a second preset time, the control board defaults that the gardening tool is making a continuous circular motion, and the control board immediately controls the prompt system to stop working.

9. The gardening tool according to claim 8, characterized in that: The second preset time is 7 to 14 seconds.

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