Garden tools and their control methods

Abstract

This invention provides a garden tool and its control method. The garden tool includes a body, a cutting blade assembly including a main blade motor and a cutting blade connected to the main blade motor; a handle assembly connected to the body and extending rearward from one side of the body for the user to push; a wheel assembly disposed below the body for supporting the body and driving it on the ground; and an operating component disposed on the handle assembly for controlling the state of the garden tool. The operating component includes a control panel and a pivotally connected self-propelled lever. A sensor is provided in the control panel. The sensor controls the self-propelled triggering and self-propelled speed regulation of the garden tool by sensing changes in the position or angle between the self-propelled lever and the handle assembly. This invention, by incorporating a sensor, can simultaneously realize the self-propelled triggering and self-propelled speed regulation functions of the garden tool.

Description

Technical Field

[0001] This invention belongs to the field of outdoor power equipment, and in particular relates to a garden tool and its control method. Background Technology

[0002] A lawnmower is a mechanical tool used for trimming lawns, vegetation, and other green areas. It consists of blades, a housing, a power head, a walking mechanism, a handle, a collection device, and a control device. It has a wide range of applications, primarily in garden trimming, lawn mowing, urban street trimming, landscaping, field mowing, and weeding. It is particularly useful for maintaining lawns or grasslands in parks, grassy areas such as football fields, private villa gardens, and vegetation in agricultural and forestry farms. When using a lawnmower, the mowing height should be determined according to the desired lawn conditions.

[0003] The self-propelled trigger function and self-propelled speed change function of existing lawnmowers are usually controlled separately, which makes the structure relatively complex.

[0004] In view of this, it is indeed necessary to improve existing garden tools and their control methods to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a garden tool that can achieve self-driving triggering and self-driving speed change functions through a sensing sensor.

[0006] To achieve the above objectives, the present invention provides a garden tool, comprising a body including a cutter assembly, the cutter assembly including a main blade motor and a cutter connected to the main blade motor; a handle assembly connected to the body and extending rearward from one side of the body for pushing by a user; a wheel assembly disposed below the body for supporting the body and driving the body to move on the ground; and an operating component disposed on the handle assembly for controlling the state of the garden tool, the operating component including a control panel and a pivotally connected self-propelled lever, wherein a sensor is provided in the control panel, the sensor controlling the self-propelled trigger and self-propelled speed change of the garden tool by sensing changes in the position or angle between the self-propelled lever and the handle assembly.

[0007] As a further improvement of the present invention, the sensing sensor includes a first component and a second component connected by a signal connection. The first component is fixedly mounted on the control panel, and the second component is fixedly connected to the self-propelled lever. When the second component moves with the self-propelled lever, the first component controls the self-propelled triggering and self-propelled speed change of the garden tool by sensing the displacement of the second component relative to the first component.

[0008] As a further improvement of the present invention, the first component is a Hall sensor, and the second component is a magnetic element disposed at a distance from the Hall sensor. The magnetic element includes a first end and a second end disposed opposite to each other. When the magnetic element moves with the self-propelled lever, the position of the magnetic element near the Hall sensor moves from the first end to the second end.

[0009] As a further improvement of the present invention, the control panel includes a first panel and a second panel, the first panel being made of a metal material, the second panel being at least partially made of a non-metallic material, the first panel and the second panel surrounding a receiving cavity, and the self-propelled pull rod being connected to the second panel and at least partially located within the receiving cavity.

[0010] As a further improvement of the present invention, the first panel is provided with a plurality of control buttons for controlling the garden tools, and the second panel is provided with lighting fixtures for illumination.

[0011] As a further improvement of the present invention, the control buttons include a power switch, a cutter speed switching switch, a self-propelled switch, and a lighting switch; and / or, a protective rod is provided between adjacent control buttons.

[0012] As a further improvement of the present invention, the first panel is provided with a display panel for displaying information about the garden tools; and / or, the control button is provided with an indicator light to display its gear position.

[0013] As a further improvement of the present invention, the self-propelled lever and the self-propelled switch jointly control the self-propelled movement of the garden tool, wherein the self-propelled switch controls the self-propelled speed and self-propelled direction of the garden tool, and the self-propelled lever and the sensing sensor control the self-propelled trigger function and the self-propelled speed change function.

[0014] As a further improvement of the present invention, the operating component also includes a main blade lever. The main blade lever and the self-propelled lever are respectively disposed on both sides of the control panel. When the power switch is in the active state, the cutter speed switching switch and the main blade lever jointly control the cutter assembly of the garden tool.

[0015] The present invention further provides a method for controlling a garden tool, the garden tool comprising a body, a cutter assembly mounted on the body; a handle assembly connected to the body and extending rearward from one side of the body for pushing by a user; a wheel assembly disposed below the body for supporting the body and driving the body to move on the ground; and an operating component disposed on the handle assembly for controlling the state of the garden tool, the operating component including a control panel, a self-propelled lever, and a main blade lever; the control panel having a plurality of control buttons, including a power switch, a cutter speed switching switch, and a self-propelled switch; a sensor disposed within the control panel, the sensor including a first component and a second component for signal connection, the first component being fixedly disposed within the control panel, and the second component being fixedly connected to the self-propelled lever; the method for controlling the garden tool includes the following steps:

[0016] Activate the power switch; the garden tool is now in standby mode.

[0017] Within a predetermined time, the self-propelled lever is pulled in the direction of the handle assembly. The self-propelled lever causes the second component to shift relative to the first component. When the angle between the self-propelled lever and the handle assembly is the first angle, the garden tool controls the walking wheel assembly to start through the sensing sensor and moves at the first speed.

[0018] When the self-propelled lever is in contact with the handle assembly, the walking wheel assembly moves at a second speed, which is greater than the first speed.

[0019] As a further improvement of the present invention, when the self-propelled lever moves toward the handle assembly, the self-propelled speed of the walking wheel assembly increases linearly from the first speed to the second speed; or, when the angle between the self-propelled lever and the handle assembly is less than or equal to the first angle and greater than the second angle, the walking wheel assembly moves at the first speed, and when the angle between the self-propelled lever and the handle assembly is less than or equal to the second angle, the walking wheel assembly moves at the second speed, wherein the second angle is less than the first angle.

[0020] As a further improvement of the present invention, it also includes: adjusting the self-propelled speed and direction of the garden tool via the self-propelled switch; wherein the self-propelled switch includes a high-speed mode, a low-speed mode, and a reverse mode; when the self-propelled switch is in the high-speed mode, the self-propelled speed of the garden tool is 0 to 1.8 m / s; when the self-propelled switch is in the low-speed mode, the self-propelled speed of the garden tool is 0 to 0.9 m / s; when the self-propelled switch is in the reverse mode, the self-propelled speed of the garden tool is lower than the speed of the low-speed mode, and the self-propelled speed of the garden tool is 0 to 0.5 m / s.

[0021] As a further improvement of the present invention, it also includes: adjusting the self-propelled speed and direction of the garden tool through the self-propelled switch; wherein, the self-propelled switch includes an acceleration gear and a deceleration gear, and each time the acceleration gear or the deceleration gear is pressed, the self-propelled speed increases or decreases by one gear.

[0022] As a further improvement of the present invention, both the acceleration gear and the deceleration gear include a first gear, a second gear, a third gear, and a fourth gear. In the first gear, the self-propelled speed of the garden tool is 0.5 to 1.0 m / s; in the second gear, the self-propelled speed of the garden tool is 0.7 to 1.3 m / s; in the third gear, the self-propelled speed of the garden tool is 0.8 to 1.6 m / s; and in the fourth gear, the self-propelled speed of the garden tool is 0.9 to 1.8 m / s.

[0023] As a further improvement of the present invention, a short press of the deceleration gear also includes: a long press of the deceleration gear, which causes the garden tool to automatically enter reverse gear.

[0024] As a further improvement of the present invention, the method for controlling the garden tools includes the following steps:

[0025] Activate the power switch; the garden tool is now in standby mode.

[0026] Within a predetermined time, the main blade lever is pulled toward the handle assembly, and the main blade switch linked with the main blade lever is turned on to control the cutting blade of the cutting blade assembly to work at the first gear speed.

[0027] The cutting speed can be changed by using the cutting speed switch.

[0028] The beneficial effects of the present invention are as follows: The garden tool of the present invention, by setting a sensing sensor in the control panel, the sensing sensor controls the self-propelled trigger and self-propelled speed change of the garden tool by sensing the displacement between the self-propelled lever and the handle assembly. The self-propelled trigger function and self-propelled speed change function of the garden tool can be controlled by a single structure, which is simple in structure, reduces cost, and has diversified functions. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of a lawnmower according to a preferred embodiment of the present invention.

[0030] Figure 2 yes Figure 1 This is a schematic diagram of the lawnmower from another angle.

[0031] Figure 3 yes Figure 1 The lawnmower shown is viewed from below.

[0032] Figure 4 yes Figure 1 Exploded view of the middle handle assembly.

[0033] Figure 5 yes Figure 4 A magnified view of the circled area.

[0034] Figure 6 yes Figure 4 A perspective view of the third handle and operating components.

[0035] Figure 7 yes Figure 6 Another perspective of the 3D view.

[0036] Figure 8 yes Figure 6 Internal structure diagram of the control component.

[0037] Figure 9 yes Figure 8 A magnified view of the circled area.

[0038] Figure label:

[0039] 100 - Garden tools;

[0040] 10-Machine body, 11-Cutter assembly, 111-Main blade motor, 112-Cutter, 12-Grass discharge channel, 121-Grass discharge chamber, 13-Cut table, 131-Cut chamber;

[0041] 20-Handle assembly, 21-First handle, 22-Second handle, 23-Third handle, 231-U-shaped arm, 24-Fixed end, 25-Connecting end, 251-Metal part, 2511-First part, 2512-Second part, 252-Insulator, 2521-Protruding ring, 2522-Thin layer part, 253-First fixing hole, 26-Operating assembly, 261-Control panel, 2611-First panel, 2612-Second panel, 26 2-Main blade lever, 2621-Main blade switch, 263-Self-propelled lever, 264-Control button, 2641-Power switch, 2642-Cutter speed switching switch, 2643-Self-propelled switch, 2644-Lighting switch, 265-Display panel, 266-Lighting fixture, 267-Protective rod, 268-Self-locking protective structure, 269-Induction sensor, 2691-First component, 2692-Second component, 2693-PCB board;

[0042] 30 - Height Adjustment Component;

[0043] 40 - Walking wheel assembly, 41 - First walking wheel, 42 - Second walking wheel;

[0044] 50 - Control box;

[0045] 60-Power Supply Box. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] like Figures 1 to 3 As shown, this invention discloses a garden tool 100, including a body 10, a handle assembly 20, a height adjustment assembly 30, a wheel assembly 40, a control box 50, and a power supply box 60. The handle assembly 20 is connected to the body 10 and extends rearward from one side of the body 10 for the user to push. The height adjustment assembly 30 is located on one side of the body 10 and is used to adjust the height of the body 10 relative to the ground to meet different mowing height requirements. The wheel assembly 40 is located below the body 10 and is used to support the body 10 and drive it to move on the ground. The control box 50 and the power supply box 60 are both located on the body 10. The power supply box 60 supplies power to the garden tool 100, and the control box 50 controls the garden tool 100.

[0048] In this embodiment, the garden tool 100 is a double-blade lawnmower, which has two blades 112, each driven independently by a main blade motor 111, and the two blades 112 are arranged staggered. Of course, the garden tool 100 can also be a single-blade lawnmower, or other types of garden or non-garden tools, and is not limited here. The following will use a lawnmower as an example to describe the specific structure of the lawnmower 100 in detail.

[0049] like Figure 2 and Figure 3 As shown, the machine body 10 is provided with a cutting table 13 and a cutter assembly 11 connected to the cutting table 13. The cutting table 13 includes a cutting cavity 131. The cutter assembly 11 includes a main blade motor 111 and a cutter 112 connected to the main blade motor 111. The main blade motor 111 is fixedly connected to the cutting table 13, and the output shaft (not shown) of the main blade motor 111 extends into the cutting cavity 131. The cutter 112 is housed in the cutting cavity 131 and connected to the output shaft, so that the main blade motor 111 drives the cutter 112 to rotate through the output shaft to cut the vegetation in the cutting cavity 131.

[0050] In this invention, the lawnmower 100 has three speed settings for cutting vegetation: low speed, high speed, and AUTO. In low speed, the blade 112 rotates at 3200-3800 rpm, preferably 3600 rpm. In high speed, the blade 112 rotates at 3800-4200 rpm, preferably 4000 rpm. In AUTO, the blade 112 rotates at a normal speed of 3600-4000 rpm, preferably 3600 rpm. When the current of the main blade motor 111 reaches 6A, the blade 112's speed increases to 4000 rpm.

[0051] In this invention, two cutting cavities 131 are provided and interconnected. The two cutting cavities 131 are respectively located on both sides of the body 10 and are arranged one in front of the other. That is, the two cutting cavities 131 are staggered relative to the forward direction of the lawnmower 100. Specifically, the cutting cavity 131 located on the right side of the forward direction of the lawnmower 100 is positioned forward, and the cutting cavity 131 located on the left side of the forward direction of the lawnmower 100 is positioned backward, that is, the two cutting cavities 131 are arranged in a front-right-rear-left shape. Corresponding cutter assemblies 11 are provided on the two cutting cavities 131. The two cutter assemblies 11 are respectively located on both sides of the battery pack 61. Of course, in other embodiments, the two cutting cavities 131 can be arranged in a front-left-rear-right shape or side by side, which is not limited here.

[0052] The machine body 10 also includes a grass-discharging channel 12 connected to the cutting table 13. The grass-discharging channel 12 forms a grass-discharging chamber 121, which is connected to the cutting chamber 131 and is used to discharge the cut vegetation outward. Specifically, the cutting table 13 is formed by stamping and welded to the grass-discharging channel 12, which reduces the cost of the machine body 10 while improving the connection stability between the cutting table 13 and the grass-discharging channel 12. The grass-discharging chamber 121 is located at the connection of the two cutting chambers 131, so that the grass-discharging chamber 121 and the cutting chamber 131 are connected, allowing the vegetation in the cutting chamber 131 to be discharged outward through the grass-discharging chamber 121.

[0053] Please continue reading. Figures 1 to 3 As shown, the wheel assembly 40 is located below the body 10, specifically including a pair of first wheels 41 and a pair of second wheels 42, which are pivotally connected to the body 10. Specifically, the first wheels 41 are located at the rear of the body 10, and the second wheels 42 are located at the front of the body 10. The first wheels 41 are located on both sides at the rear of the body 10 and are connected to the body 10 via a height adjustment assembly 30, while the second wheels 42 are located on both sides at the front of the body 10 and are connected to the body 10 via the height adjustment assembly 30.

[0054] Both the control box 50 and the power supply box 60 are located on the upper surface of the body 10, with the control box 50 located at the rear of the body 10 and the power supply box 60 located at the front of the control box 50. The main blade motor 111 is embedded in the body 10 and protrudes into the cutting table 13 located on the lower surface of the body 10. The grass discharge channel 12 is located at the bottom rear of the body 10 and communicates with the inner cavity of the cutting table 13. This arrangement makes the overall structure of the lawnmower 100 more compact.

[0055] like Figures 4 to 8 As shown, the handle assembly 20 is U-shaped and located at the rear of the body 10 for the operator to push. It includes a first handle 21 and a second handle 22 extending rearward and upward from the rear of the body 10, and a third handle 23 that is insulated from and connects the first handle 21 and the second handle 22. The third handle 23 is located at the top of the handle assembly 20, allowing the operator to stand behind the handle assembly 20 and hold the third handle 23 to operate it.

[0056] The first handle 21, the second handle 22, the third handle 23, and the body 10 are all made of metal to improve the structural strength of the lawnmower 100. Both the first handle 21 and the second handle 22 are connected to the body 10, and the first handle 21 and the second handle 22 are insulated from the third handle 23. This design prevents electric shock to the operator in the event of leakage from live components on the body 10 (such as the power supply box 60).

[0057] In some embodiments, the handle assembly 20 may have only a first handle 21 and a third handle 23, or only a second handle 22 and a third handle 23. In this case, one end of the first handle 21 / second handle 22 is connected to the body 10, and the other end is insulated from the third handle 23. The present invention does not limit this.

[0058] In this embodiment, the first handle 21 and the second handle 22 have the same structure and are symmetrically arranged. Each includes a fixed end 24 connected to the body 10 and a connecting end 25 connected to the third handle 23. The outer side of the connecting end 25 is covered with an insulating member 252 to achieve an insulated connection between the first handle 21, the second handle 22 and the third handle 23. In other embodiments, the structures of the first handle 21 and the second handle 22 may be different, as long as the outer side of the connecting end 25 connected to the third handle 23 is covered with an insulating member 252 to achieve an insulated connection between the first handle 21, the second handle 22 and the third handle 23. This invention does not limit this.

[0059] To clearly illustrate the structure of the first handle 21 and the second handle 22 and their connection with the third handle 23, the first handle 21 will be used as an example. The structure and connection of the second handle 22 are the same as those of the first handle 21, and will not be described in detail here.

[0060] In one embodiment of this application, the third handle 23 is U-shaped and hollow, including two U-shaped arms 231 connected to the first handle 21 and the second handle 22. The fixed end 24 of the first handle 21 is bent inward twice to form a connecting end 25, i.e., the fixed end 24 is parallel to the connecting end 25. An insulating member 252 is wrapped around the outside of the connecting end 25. By inserting the connecting end 25 with the insulating member 252 into the U-shaped arm 231 of the third handle 23, an insulated connection between the first handle 21, the second handle 22, and the third handle 23 is achieved. By bending the fixed end 24 inward twice to form the connecting end 25, the distance between the two connecting ends 25 is less than the distance between the two fixed ends 24 along the width direction of the body 10, thereby reducing the space occupied by the handle assembly 20 and improving the overall structural compactness of the lawnmower 100. Preferably, in this embodiment, the fixed end 24 and the connecting end 25 are integrally formed to save on manufacturing processes. In other embodiments, the fixed end 24 and the connecting end 25 can also be separately arranged and assembled together.

[0061] In another embodiment of this application, the third handle 23 is arranged in a straight line, and the fixed ends 24 of the first handle 21 and the second handle 22 are bent inward once to form a connecting end 25, that is, the fixed end 24 and the connecting end 25 are set at an angle. Then, the connecting end 25 wrapped with the insulating member 252 is inserted into the straight third handle 23 to achieve an insulated connection between the first handle 21 and the second handle 22 and the third handle 23. This invention does not limit this.

[0062] Furthermore, the connecting end 25 includes a metal portion 251, the outer side of which is covered with an insulating member 252. Specifically, the metal portion 251 includes a first part 2511 and a second part 2512 coaxially arranged with different diameters. The first part 2511 is located near the third handle 23, and the diameter of the first part 2511 is smaller than the diameter of the second part 2512. The insulating member 252 is sleeved on the outer side of the first part 2511. In this way, by reducing the diameter of the end of the first handle 21 near the third handle 23 through a tube shrinking process, it is convenient to wrap the insulating member 252 on its outer side, so that the connection between the first handle 21 and the third handle 23 is an insulated connection. When the live components on the machine body 10 leak current, causing the first handle 21 to become live, the insulation design prevents the live first handle 21 from transmitting current to the third handle 23 through the metal portion 251, avoiding harm to the operator holding the third handle 23 and improving the safety of the lawnmower 100.

[0063] The insulating element 252 can be made of insulating and wear-resistant materials such as plastic. In this embodiment, the insulating element 252 includes a thin layer portion 2522 and a protruding ring 2521 protruding outward from the thin layer portion 2522.

[0064] The thin layer 2522 wraps around the outside of the first part 2511, and the thickness of the thin layer 2522 is less than the radius difference between the first part 2511 and the second part 2512. That is, even after the insulating member 252 is fitted over the first part 2511, its diameter is still smaller than the diameter of the second part 2512. Furthermore, the third handle 23 is also U-shaped and has a hollow structure, with a diameter similar to that of the second part 2512 of the first handle 21. When the thickness of the thin layer 2522 is less than the radius difference between the first part 2511 and the second part 2512, the first part 2511, fitted with the insulating member 252, can be easily inserted into the third handle 23, improving the overall aesthetics of the handle assembly 20.

[0065] A protruding ring 2521 is positioned close to the second portion 2512. The diameter of the protruding ring 2521 is greater than or equal to the diameter of the third handle 23, and the protruding ring 2521 is sandwiched between the first handle 21 and the third handle 23. When the first portion 2511 of the first handle 21 is inserted into the third handle 23, the presence of the protruding ring 2521 prevents the second portion 2512 of the first handle 21 from directly connecting to the third handle 23, thereby further improving the security of the connection between the first handle 21 and the third handle 23. Preferably, the diameter of the protruding ring 2521 is equal to the diameter of the third handle 23, so that the diameters of the third handle 23, the protruding ring 2521, and the second portion 2512 of the first handle 21 are all the same, thereby improving the overall aesthetics of the handle assembly 20.

[0066] Furthermore, the first handle 21 and the third handle 23 are fixedly connected by fasteners. Specifically, the first part 2511 of the first handle 21 and the thin layer 2522 of the insulating member 252 are each provided with a plurality of first fixing holes 253, and the third handle 23 is provided with a plurality of second fixing holes (not shown) at corresponding positions. Fasteners (such as screws) pass through the first fixing holes 253 and the second fixing holes to fix the first handle 21 to the third handle 23.

[0067] In this embodiment, an insulating member 252 is wrapped around the outside of the connecting end 25 where the first handle 21 and the second handle 22 connect to the third handle 23, particularly on the smaller diameter first portion 2511 of the connecting end 25, to achieve an insulated connection between the first handle 21, the second handle 22, and the third handle 23. In other embodiments, an insulating member 252 can also be provided at one end of the third handle 23 facing the first handle 21 and the second handle 22, and this insulating member 252 can be used to achieve an insulated connection between the third handle 23 and the first handle 21 and the second handle 22.

[0068] At this time, the first handle 21 and the second handle 22 are hollow structures, and the third handle 23 includes a first part 2511 and a second part 2512 that are coaxially arranged and have different diameters. The first part 2511 is located close to the first handle 21 / second handle 22, and an insulating member 252 is provided on the outside of the first part 2511. The first part 2511 with the insulating member 252 is inserted into the hollow structure of the first handle 21 / second handle 22, and the third handle 23 is insulated from the first handle 21 and the second handle 22 by fasteners.

[0069] Furthermore, the insulating element 252 may also include a thin layer 2522 wrapped around the first part 2511 and a protruding ring 2521 protruding outward from the thin layer 2522 and disposed near the first handle 21 / second handle 22. By setting the protruding ring 2521, the third handle 23 is not directly connected to the first handle 21 / second handle 22, so as to further realize the insulated connection between the third handle 23 and the first handle 21 / second handle 22 and improve the safety of the lawnmower 100.

[0070] Furthermore, the lawnmower 100 also includes an operating component 26 for controlling the cutter assembly 11 and the wheel assembly 40. The operating component 26 is located on the third handle 23 of the handle assembly 20 for the convenience of the operator.

[0071] The operating component 26 includes a control panel 261, a main blade lever 262, and a self-propelled lever 263. The control panel 261 is mounted on the handle assembly 20. The main blade lever 262 and the self-propelled lever 263 are pivotally connected to the upper and lower sides of the handle assembly 20, preferably with the self-propelled lever 263 positioned below the main blade lever 262. The main blade lever 262 controls the starting of the main blade motor 111 in the cutting blade assembly 11, and the self-propelled lever 263 controls the starting and speed variation of the traveling wheel assembly 40.

[0072] The control panel 261 is located between the two U-shaped arms 231 of the third handle 23, and its main body is located above the third handle 23.

[0073] The control panel 261 includes a first panel 2611 and a second panel 2612. The plane of the first panel 2611 is approximately perpendicular to the ground, and the second panel 2612 is approximately parallel to the ground. The first panel 2611 is made of metal, while the second panel 2612 is at least partially made of non-metallic material, and the second panel 2612 is positioned closer to the operator than the first panel 2611. This arrangement improves the structural strength of the control panel 261 while also enhancing the aesthetics of the lawnmower 100 and the operator's safety.

[0074] The first panel 2611 and the second panel 2612 form a receiving cavity. The main blade pull rod 262 is connected to the first panel 2611 in the control panel 261, and the self-propelled pull rod 263 is connected to the second panel 2612 and is at least partially located in the receiving cavity.

[0075] The first panel 2611 is provided with several control buttons 264 for controlling the lawnmower 100 and a display panel 265 for displaying information about the lawnmower 100. The second panel 2612 is provided with lighting fixtures 266 for illumination.

[0076] In this embodiment, the display panel 265 is disposed in the middle of the first panel 2611, and a plurality of control buttons 264 are distributed on both sides of the display panel 265. In other embodiments, the display panel 265 may also be disposed above or below the plurality of control buttons 264, or in other positions, and the present invention is not limited thereto. In some embodiments, the control buttons 264 are provided with indicator lights that display their gear positions.

[0077] The control panel 261 contains a control circuit board, which enables control of the lawnmower 100 via wired communication such as a control line or wireless communication such as Bluetooth, WIFI, or infrared. In this embodiment, several control buttons 264 include a power switch 2641 for powering on the lawnmower 100, a cutter speed switch 2642 for switching the speed of the cutter 112, a self-propelled switch 2643 for controlling the self-propelled speed of the walking wheel assembly 40, and a lighting switch 2644 for controlling the lighting fixture 266.

[0078] Furthermore, several control buttons 264 are spaced apart by protective rods 267 to prevent the operator from accidentally touching other buttons during operation, thereby improving operational safety.

[0079] When the power switch 2641 is active, the cutter speed switching switch 2642 and the main blade lever 262 jointly control the cutter assembly 11 of the lawnmower 100, and the self-propelled lever 263 and the self-propelled switch 2643 jointly control the self-propelled movement of the lawnmower 100.

[0080] The self-propelled lever 263 is located below the handle assembly 20 and pivotally connected to the control panel 261. A sensor 269 is housed within the receiving cavity of the control panel 261. When the power switch 2641 is activated, the sensor 269 controls the self-propelled triggering and speed regulation of the garden tool 100 by sensing changes in the position or angle between the self-propelled lever 263 and the handle assembly 20. In other words, the self-propelled triggering and speed regulation functions of the garden tool 100 can be controlled by a single sensor 269, resulting in a simple structure, reduced cost, and diverse functions.

[0081] The sensing sensor 269 can be a displacement sensor, an angle sensor, or a sensor that combines displacement and angle.

[0082] In this embodiment, the sensing sensor 269 is a displacement sensor, including a first component 2691 and a second component 2692 connected by signals. The first component 2691 is fixedly installed in the control panel 261, and the second component 2692 is fixedly connected to the self-propelled lever 263. When the second component 2692 moves with the self-propelled lever 263, the first component 2691 controls the self-propelled triggering and self-propelled speed change of the garden tool 100 by sensing the displacement of the second component 2692 relative to the first component 2691.

[0083] Further, the first component 2691 is a Hall sensor, and the second component 2692 is a magnetic element spaced apart from the Hall sensor 2691. The volume of the magnetic element 2692 is larger than that of the Hall sensor. The magnetic element 2692 includes a first end and a second end arranged opposite to each other. When the magnetic element 2692 moves with the self-propelled lever 263, the position of the magnetic element 2692 near the Hall sensor 2691 moves from the first end to the second end. That is, when the self-propelled lever 263 is in a free state (i.e., when the angle between the self-propelled lever 263 and the handle assembly 20 is at its maximum), the first end of the magnetic element 2692 is positioned close to the Hall sensor 2692; when the self-propelled lever 263 is pulled by an external force towards the handle assembly 20, the magnetic element 2692 moves with the self-propelled lever 263 towards the handle assembly 20. At this time, the first end of the magnetic element 2692 gradually moves away from the Hall sensor 2691, while the second end gradually moves closer to the Hall sensor 2691. The Hall sensor 2691 controls the self-propelled triggering and self-propelled speed change of the garden tool 100 by sensing the change of the magnetic element 2692 from the first end to the second end.

[0084] Preferably, the magnetic component 2692 is a magnet. The magnet 2692 is disposed at the connection point between the self-propelled lever 263 and the second panel in the control panel 261, and is located inside the control panel 261, i.e., within its receiving cavity, and includes a N pole and a S pole arranged opposite to each other. A Hall sensor 2691 is disposed on the PCB board 2693 within the receiving cavity of the control panel 261. The magnet 2692 and the Hall sensor 2691 are spaced apart and signal-connected. The Hall sensor 2691 senses the movement of the magnet 2692 from the N pole to the S pole to collect voltage data of the lawnmower 100, thereby realizing the self-propelled trigger function and self-propelled speed control function of the lawnmower 100.

[0085] Specifically, when the angle between the self-propelled lever 263 and the handle assembly 20 is the first angle, the magnetic element 2692 is pulled upwards and closer to the third handle 23 along with the self-propelled lever 263.

[0086] When the self-propelled lever 263 is in a free state (i.e., when the angle between the self-propelled lever 263 and the handle assembly 20 is at its maximum), the N end of the magnet 2692 is positioned close to the Hall sensor 2691. At this time, if the voltage data collected by the Hall sensor 2691 does not reach the self-propelled trigger voltage data required by the lawnmower 100, the lawnmower 100 will not start the self-propelled function.

[0087] The self-propelled lever 263 moves toward the third handle 23 in the handle assembly 20. When the angle between the self-propelled lever 263 and the handle assembly 20 is the first angle (the first angle is less than the maximum angle), the magnet 2692 is pulled upward and closer to the third handle 23 along with the self-propelled lever 263. That is, the N end of the magnet 2692 gradually moves away from the Hall sensor 2691, while the S end gradually moves closer to the Hall sensor 2691. The Hall sensor 2691 collects a certain voltage data. When the voltage data collected by the Hall sensor 2691 reaches the self-propelled trigger voltage data required by the lawnmower 100, the self-propelled function of the lawnmower 100 is activated, and the lawnmower 100 controls the walking wheel assembly 40 to start. At this time, the lawnmower 100 moves at the first speed.

[0088] When the self-propelled lever 263 is fully engaged with the third handle 23, the magnet 2692 also rises to its maximum height along with the self-propelled lever 263. At this time, the S-end of the magnet 2692 is close to the Hall sensor 2691, and the Hall sensor 2691 senses the highest voltage data. The lawnmower 100 then moves at a second speed, which is greater than the first speed.

[0089] In one embodiment of the present invention, when the self-propelled lever 263 moves toward the handle assembly 20, the self-propelled speed of the walking wheel assembly 40 increases linearly from a first speed to a second speed.

[0090] In another embodiment of the present invention, when the angle between the self-propelled lever 263 and the handle assembly 20 is less than or equal to a first angle and greater than a second angle, the walking wheel assembly 40 moves at the first speed; when the angle between the self-propelled lever 263 and the handle assembly 20 is less than or equal to the second angle, the walking wheel assembly 40 moves at a second speed, wherein the second angle is less than the first angle. For example, when the angle between the self-propelled lever 263 and the third handle 23 is 30°, the voltage data collected by the Hall sensor 2691 reaches the self-propelled trigger voltage data required by the lawnmower 100, the self-propelled function of the lawnmower 100 is activated, and it moves at the first speed. When the angle between the self-propelled lever 263 and the third handle 23 is less than or equal to 30° and greater than 15°, the lawnmower 100 continues to move at the first speed; when the angle between the self-propelled lever 263 and the third handle 23 is less than or equal to 15°, the lawnmower 100 moves at the second speed.

[0091] Furthermore, the self-propelled switch 2643 and the self-propelled lever 263 located on the control panel 261 jointly control the self-propelled speed of the walking wheel assembly 40. That is, the self-propelled lever 263 can control the self-propelled start function and self-propelled speed change function of the walking wheel assembly 40 of the lawnmower 100. The self-propelled switch 2643 can control the self-propelled speed gear and self-propelled direction of the walking wheel assembly 40 of the lawnmower 100.

[0092] The self-propelled switch 2643 includes several positions, which control the self-propelled speed and direction of the walking wheel assembly 40. The self-propelled lever 263 and the displacement sensor 269 control the self-propelled trigger function and the self-propelled speed change function of the walking wheel assembly 40.

[0093] In one embodiment of the present invention, the self-propelled switch 2643 has three positions: a high-speed position at the top, a low-speed position in the middle, and a reverse position at the bottom. When the self-propelled switch 2643 is in the high-speed position, the self-propelled speed of the garden tool 100 is 0–1.8 m / s; when the self-propelled switch 2643 is in the low-speed position, the self-propelled speed of the garden tool 100 is 0–0.9 m / s; when the self-propelled switch 2643 is in the reverse position, the self-propelled speed of the garden tool 100 is lower than the speed of the low-speed position, and the self-propelled speed of the garden tool 100 is 0–0.5 m / s.

[0094] In another embodiment of the present invention, the self-propelled switch 2643 includes an acceleration mode and a deceleration mode. Each press of the acceleration mode or the deceleration mode increases or decreases the self-propelled speed by one gear. When the upper part of the self-propelled switch 2643 is pressed, the acceleration mode is triggered, increasing the self-propelled speed by one gear. After triggering, it automatically resets and can be pressed again to increase the self-propelled speed by another gear. Repeating this operation can increase the speed to the highest gear. The deceleration mode is located at the lower part of the self-propelled switch 2643, and its operating principle is the same as that of the acceleration mode, and will not be described further.

[0095] Preferably, both the acceleration and deceleration gears include four positions: a first position, a second position, a third position, and a fourth position. When the self-propelled switch 2643 is in the first position, the self-propelled speed of the garden tool is 0.5–1.0 m / s; when the self-propelled switch 2643 is in the second position, the self-propelled speed of the garden tool is 0.7–1.3 m / s; when the self-propelled switch 2643 is in the third position, the self-propelled speed of the garden tool is 0.8–1.6 m / s; and when the self-propelled switch 2643 is in the fourth position, the self-propelled speed of the garden tool is 0.9–1.8 m / s.

[0096] Furthermore, the deceleration gear has two functions: when the deceleration gear is pressed briefly, the self-moving speed of the garden tool decreases by one level. When the deceleration gear is pressed for a long time, the garden tool automatically enters reverse gear. That is, when the deceleration gear is pressed, the self-moving speed of the lawnmower 100 automatically decreases by one level, and when the deceleration gear is pressed continuously for more than a certain period of time (for example, 1.5 seconds), the reverse gear will be automatically triggered.

[0097] Furthermore, the present invention also provides a control method for the above-mentioned garden tool 100. The method for controlling the self-propelled speed of the lawnmower 100 includes the following steps:

[0098] S100: Activate power switch 2641, lawnmower 100 is in standby mode;

[0099] S110: Within a predetermined time, the self-propelled lever 263 is pulled toward the handle assembly 20. The self-propelled lever 263 causes the second component 2692 to move relative to the first component 2691. When the angle between the self-propelled lever 263 and the handle assembly 20 is the first angle, the lawnmower 100 controls the walking wheel assembly 40 to start through the sensing sensor 269 and moves at the first speed.

[0100] S120: When the self-propelled lever 263 is in contact with the handle assembly 20, the walking wheel assembly 40 moves at a second speed, which is greater than the first speed.

[0101] Furthermore, when the self-propelled lever 263 moves toward the handle assembly 20, the self-propelled speed of the walking wheel assembly 40 increases linearly from the first speed to the second speed; or, when the angle between the self-propelled lever 263 and the handle assembly 20 is less than or equal to the first angle and greater than the second angle, the walking wheel assembly 40 moves at the first speed, and when the angle between the self-propelled lever 263 and the handle assembly 20 is less than or equal to the second angle, the walking wheel assembly 40 moves at the second speed, wherein the second angle is less than the first angle.

[0102] In one embodiment of the present invention, the self-propelled speed control method of the lawnmower 100 further includes step S130: adjusting the self-propelled speed gear and direction of the garden tool 100 by means of a self-propelled switch 2643; wherein the self-propelled switch 2643 includes a high speed gear located at the top, a low speed gear located in the middle, and a reverse gear located at the bottom.

[0103] When the self-propelled switch 2643 is in the low-speed position, the self-propelled speed of the lawnmower 100 varies from 0 to 0.9 m / s. That is, when the self-propelled lever 263 and the third handle 23 are at the first angle, triggering the self-propelled function of the lawnmower 100, the self-propelled speed of the lawnmower 100 changes from 0 to 0.1 m / s. When the self-propelled lever 263 and the third handle 23 are fully engaged, the self-propelled speed of the lawnmower 100 reaches its maximum of 0.9 m / s.

[0104] When the self-propelled switch 2643 is in the high-speed position, the self-propelled speed of the lawnmower 100 varies from 0 to 1.8 m / s. That is, when the self-propelled lever 263 and the third handle 23 are at the first angle, the self-propelled function of the lawnmower 100 is triggered, and the self-propelled speed of the lawnmower 100 changes from 0 to 0.1 m / s. When the self-propelled lever 263 and the third handle 23 are fully engaged, the self-propelled speed of the lawnmower 100 reaches its maximum of 1.8 m / s.

[0105] When the self-propelled switch 2643 is in the reverse position, the self-propelled speed of the lawnmower 100 varies between 0 and 0.5 m / s. That is, when the self-propelled lever 263 and the third handle 23 form the first angle, triggering the self-propelled reverse function of the lawnmower 100 causes its reverse speed to change from 0 to 0.5 m / s. When the self-propelled lever 263 and the third handle 23 are fully engaged, the self-propelled speed of the lawnmower 100 remains at 0.5 m / s. In other words, the reverse speed of the lawnmower 100 is constant and lower than the self-propelled speed in the low-speed mode, thus improving the walking safety of the lawnmower 100.

[0106] In another embodiment of the present invention, the self-propelled speed control method of the lawnmower 100 further includes step S140: adjusting the self-propelled speed and direction of the garden tool 100 by means of the self-propelled switch 2643; wherein, the self-propelled switch 2643 includes an acceleration gear and a deceleration gear, and each time the acceleration gear or the deceleration gear is pressed, the self-propelled speed increases or decreases by one gear.

[0107] Furthermore, step S140 also includes step S141: Press and hold the deceleration gear, and the garden tool 100 will automatically enter the reverse gear. That is, when the deceleration gear is pressed, the self-moving speed of the lawnmower 100 will automatically decrease by one gear. If the deceleration gear is pressed continuously for a certain period of time (for example, 1.5 seconds), the reverse gear will be automatically triggered.

[0108] Both the acceleration and deceleration gears include four positions: a first position, a second position, a third position, and a fourth position. When the self-propelled switch 2643 is in the first position, the self-propelled speed of the garden tool is 0.5–1.0 m / s; when the self-propelled switch 2643 is in the second position, the self-propelled speed of the garden tool is 0.7–1.3 m / s; when the self-propelled switch 2643 is in the third position, the self-propelled speed of the garden tool is 0.8–1.6 m / s; and when the self-propelled switch 2643 is in the fourth position, the self-propelled speed of the garden tool is 0.9–1.8 m / s.

[0109] Furthermore, both ends of the main blade lever 262 are connected to the first panel 2611 of the control panel 261, and the shape of the main blade lever 262 is the same as that of the third handle 23, so as to facilitate the operator to control the main blade lever 262 while holding the third handle 23. Preferably, with the power switch 2641 activated, the main blade motor 111 of the lawnmower 100 is started by pulling the main blade lever 262 towards the third handle 23.

[0110] Optionally, the present invention provides a method for controlling the cutter 112 of a garden tool 100. The method includes the following steps:

[0111] S200: Activate power switch 2641, garden tool 100 is in standby mode;

[0112] S210: Within a predetermined time, pull the main blade lever 262 toward the handle assembly 20. The main blade switch 2621, which is linked to the main blade lever 262, is turned on to control the cutter 112 of the cutter assembly 11 to work at the first level of speed. That is, when the cutter assembly 11 is started, it works at the first level of speed as the default speed.

[0113] S220: The rotational speed of the cutter 112 is changed by means of the cutter speed switching switch 2642.

[0114] Furthermore, step S210 also includes step S211: after a predetermined time has elapsed, the power switch 2641 needs to be restarted, and then the main blade lever 262 is pulled to control the cutting blade assembly 11 of the garden tool 100. Optionally, the operator can set the predetermined time, for example, one minute. This is to avoid misoperation and improve safety.

[0115] Preferably, the main blade pull rod 262 is provided with an elastic device, which automatically returns the main blade pull rod 262 to its initial position when it is released. Furthermore, a self-locking protective structure 268 is provided at the connection between the main blade pull rod 262 and the first panel 2611 to prevent accidental triggering and improve operational safety.

[0116] When it is necessary to change the rotation speed of the cutter 112, it is controlled by the cutter speed switching switch 2642 on the control panel 261. Preferably, the cutter speed switching switch 2642 has three settings: the bottom setting is the first speed setting, which is the default speed of the cutter 112 of the lawnmower 100 after pulling the main blade lever 262; the middle setting is the second speed setting; and the top setting is the third speed setting, with the third speed setting being greater than the second speed setting, which in turn is greater than the first speed setting.

[0117] That is, the method also includes step S220: the cutter speed switching switch 2642 has three speed levels, the bottom one is the first speed level, the middle one is the second speed level, and the top one is the third speed level, and the third speed level is greater than the second speed level, which is greater than the first speed level.

[0118] It should be noted that the above-described control method for garden tools 100 is a preferred embodiment of the control method of the present invention, but it is not limited thereto. In other embodiments, the steps in the control method for garden tools 100 may be rearranged, deleted, merged, or combined as needed, and the present invention does not limit them in this regard.

[0119] Furthermore, the lighting switch 2644 is used to control the on / off state of the lighting fixture 266 located on the second panel 2612 of the control panel 261. The lighting fixture 266 is angled to illuminate the front of the lawnmower 100, providing illumination for the lawnmower 100. Preferably, the illumination range of the lighting fixture 266 is related to the height of the handle assembly 20. When the handle assembly 20 is raised by the height adjustment component 30, the illumination range of the lighting fixture 266 is the closest; when the handle assembly 20 is lowered by the height adjustment component 30, the illumination range of the lighting fixture 266 is the farthest.

[0120] In summary, the operating component 26 of the present invention is disposed on the handle assembly 20 of the garden tool 100 to facilitate the operator's control of the garden tool 100 through the operating component 26. A displacement sensor 269 is disposed in the control panel 261. The displacement sensor 269 controls the self-propelled triggering and self-propelled speed change of the garden tool 100 by sensing the displacement between the self-propelled lever 263 and the handle assembly 20. That is, the self-propelled triggering function and self-propelled speed change function of the garden tool 100 can be controlled by a single sensor 269, which is simple in structure, reduces cost, and provides diversified functions.

[0121] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A garden tool, characterized in that: include The machine body includes a cutter assembly, the cutter assembly including a main cutter motor and a cutter connected to the main cutter motor; A handle assembly is connected to the body and extends rearward from one side of the body for the user to push; A walking wheel assembly, disposed below the machine body, is used to support the machine body and propel it to move on the ground; and An operating component is disposed on the handle assembly and is used to control the state of the garden tool. The operating component includes a control panel and a pivotally connected self-propelled lever. A sensing sensor is provided in the control panel. The sensing sensor controls the self-propelled triggering and self-propelled speed change of the garden tool by sensing the position or angle change between the self-propelled lever and the handle assembly. The sensing sensor includes a first component and a second component connected by a signal. The first component is fixedly mounted on the control panel, and the second component is fixedly connected to the self-propelled lever. When the second component moves with the self-propelled lever, the first component controls the self-propelled triggering and self-propelled speed change of the garden tool by sensing the displacement of the second component relative to the first component. Within a predetermined time, the self-propelled lever is pulled in the direction of the handle assembly. The self-propelled lever causes the second component to shift relative to the first component. When the angle between the self-propelled lever and the handle assembly is the first angle, the garden tool controls the walking wheel assembly to start through the sensing sensor and moves at the first speed. When the self-propelled lever is in contact with the handle assembly, the walking wheel assembly moves at a second speed, which is greater than the first speed.

2. The garden tool according to claim 1, characterized in that: The first component is a Hall sensor, and the second component is a magnetic component spaced apart from the Hall sensor. The magnetic component includes a first end and a second end that are arranged opposite to each other. When the magnetic component moves with the self-propelled lever, the position of the magnetic component near the Hall sensor moves from the first end to the second end.

3. The garden tool according to claim 1, characterized in that: The control panel includes a first panel and a second panel. The first panel is made of a metal material, and the second panel is at least partially made of a non-metal material. The first panel and the second panel surround a receiving cavity, and the self-propelled lever is connected to the second panel and is at least partially located within the receiving cavity.

4. The garden tool according to claim 3, characterized in that: The first panel is provided with several control buttons for controlling the garden tools, and the second panel is provided with lighting fixtures for illumination.

5. The garden tool according to claim 4, characterized in that: The control buttons include a power switch, a cutter speed switching switch, a self-propelled switch, and a lighting switch, with a protective rod between adjacent control buttons.

6. The garden tool according to claim 4, characterized in that: The first panel is provided with a display panel for displaying information about the garden tools, and the control button is provided with an indicator light to show its gear position.

7. The garden tool according to claim 5, characterized in that: The self-propelled lever and the self-propelled switch jointly control the self-propelled movement of the garden tool. The self-propelled switch controls the self-propelled speed and direction of the garden tool, while the self-propelled lever and the sensing sensor control the self-propelled trigger function and the self-propelled speed change function.

8. The garden tool according to claim 5, characterized in that: The operating component also includes a main blade lever. The main blade lever and the self-propelled lever are respectively located on both sides of the control panel. When the power switch is active, the cutter speed switch and the main blade lever jointly control the cutter assembly of the garden tool.

9. A method for controlling garden tools, characterized in that: The garden tool includes a body, a cutter assembly mounted on the body, a handle assembly connected to the body and extending rearward from one side of the body for the user to push; a wheel assembly located below the body for supporting the body and moving it on the ground; and an operating component mounted on the handle assembly for controlling the state of the garden tool. The operating component includes a control panel, a self-propelled lever, and a main blade lever. The control panel has several control buttons, including a power switch, a cutter speed switch, and a self-propelled switch. A sensor is located within the control panel, comprising a first component and a second component for signal connection. The first component is fixedly mounted within the control panel, and the second component is fixedly connected to the self-propelled lever. The control method of the garden tool includes the following steps: Activate the power switch; the garden tool is now in standby mode. Within a predetermined time, the self-propelled lever is pulled in the direction of the handle assembly. The self-propelled lever causes the second component to shift relative to the first component. When the angle between the self-propelled lever and the handle assembly is the first angle, the garden tool controls the walking wheel assembly to start through the sensing sensor and moves at the first speed. When the self-propelled lever is in contact with the handle assembly, the walking wheel assembly moves at a second speed, which is greater than the first speed.

10. The method for controlling garden tools according to claim 9, characterized in that, When the self-propelled lever moves toward the handle assembly, the self-propelled speed of the walking wheel assembly increases linearly from the first speed to the second speed; or, when the angle between the self-propelled lever and the handle assembly is less than or equal to the first angle and greater than the second angle, the walking wheel assembly moves at the first speed, and when the angle between the self-propelled lever and the handle assembly is less than or equal to the second angle, the walking wheel assembly moves at the second speed, wherein the second angle is less than the first angle.

11. The method for controlling garden tools according to claim 9, characterized in that, Also includes: The self-propelled switch adjusts the self-propelled speed and direction of the garden tool; wherein, the self-propelled switch includes a high-speed mode, a low-speed mode, and a reverse mode; when the self-propelled switch is in the high-speed mode, the self-propelled speed of the garden tool is 0~1.8m / s; when the self-propelled switch is in the low-speed mode, the self-propelled speed of the garden tool is 0~0.9m / s; when the self-propelled switch is in the reverse mode, the self-propelled speed of the garden tool is lower than the speed of the low-speed mode, and the self-propelled speed of the garden tool is 0~0.5m / s.

12. The method for controlling garden tools according to claim 9, characterized in that, Also includes: The self-propelled switch adjusts the self-propelled speed and direction of the garden tool; wherein, the self-propelled switch includes an acceleration mode and a deceleration mode, and each press of the acceleration mode or the deceleration mode increases or decreases the self-propelled speed by one level.

13. The method for controlling garden tools according to claim 12, characterized in that, Both the acceleration gear and the deceleration gear include a first gear, a second gear, a third gear, and a fourth gear. In the first gear, the self-propelled speed of the garden tool is 0.5~1.0 m / s; in the second gear, the self-propelled speed of the garden tool is 0.7~1.3 m / s; in the third gear, the self-propelled speed of the garden tool is 0.8~1.6 m / s; and in the fourth gear, the self-propelled speed of the garden tool is 0.9~1.8 m / s.

14. The method for controlling garden tools according to claim 12, characterized in that, Also includes: Press and hold the deceleration gear, and the garden tool will automatically enter reverse gear.

15. The method for controlling garden tools according to claim 9, characterized in that, The method for controlling the garden tools includes the following steps: Activate the power switch; the garden tool is now in standby mode. Within a predetermined time, the main blade lever is pulled toward the handle assembly, and the main blade switch linked with the main blade lever is turned on to control the cutting blade of the cutting blade assembly to work at the first gear speed. The cutting speed can be changed by using the cutting speed switch.

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