Handheld cutting tool and pruning machine

Abstract

The utility model discloses a handheld cutting tool and a pruning machine. The hand-held cutting tool includes: a main housing in which an accommodating space is formed; the cutting device is supported by the main shell and extends in at least one cutting plane; at least part of the motor is arranged in the containing space and can drive the cutting device to conduct cutting; the power supply device at least can supply power to the motor; the plurality of indicating pieces are respectively arranged on a plurality of different positions of the cutting device and / or the main shell; the sensor can sense the relative position relation between the cutting plane and the reference plane and output a corresponding position signal; and the controller is connected with the sensor and the plurality of indicating pieces, and can receive the position signal sent by the sensor and send an activation signal to the indicating piece at the corresponding position. According to the scheme, the function of prompting the inclination angle of the cutting plane can be accurately and conveniently achieved at low cost, so that the cutting result meets the user expectation.

Description

Technical Field

[0001] The present application relates to the technical field of electric tools, and in particular to a handheld cutting tool and a pruning machine. Background Art

[0002] Handheld cutting tools are widely used in various industries such as gardening and construction. At present, they are generally driven by electric energy and may include pruning machines, chain saws, mowers, etc. The above-mentioned handheld cutting tools have functional parts such as blades, chains, mower ropes, etc. for performing cutting operations. When cutting, they can form a cutting plane in the shrubs to be cut. In order to achieve the purpose of aesthetics, in many cases, users have requirements for the inclination angle of the cutting plane, for example, they hope that the cutting plane is basically horizontal.

[0003] This section provides background information related to the present application which is not necessarily prior art. Summary of the invention

[0004] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a handheld cutting tool and a pruning machine.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] A handheld cutting tool comprises: a main shell body, which is formed with a storage space; a cutting device, which is supported by the main shell body and extends in at least one cutting plane; a motor, which is at least partially arranged in the storage space and can drive the cutting device to perform cutting; a power supply device, which can at least supply power to the motor; the handheld cutting tool also comprises: a plurality of indicators, which are respectively arranged at a plurality of different positions of the cutting device and / or the main shell body; a sensor, which can sense the relative position relationship between the cutting plane and the reference plane and output a corresponding position signal; a controller, which is connected to the sensor and the plurality of indicators, and can receive the position signal sent by the sensor and send an activation signal to the indicator at the corresponding position.

[0007] In some embodiments, the multiple indicator members include at least a first light-emitting member, a second light-emitting member and a third light-emitting member arranged along the front-to-back direction; wherein the first light-emitting member is located on the front side, the third light-emitting member is located on the rear side, and the second light-emitting member is located between the first light-emitting member and the third light-emitting member.

[0008] In some embodiments, the multiple indicator members include at least a first light-emitting member, a second light-emitting member and a third light-emitting member arranged along the left and right directions; wherein the first light-emitting member is located on the left, the third light-emitting member is located on the right, and the second light-emitting member is located between the first light-emitting member and the third light-emitting member.

[0009] In some embodiments, the sensor is capable of sending at least one of a first position signal, a second position signal, and a third position signal; the controller sends a first activation signal to the first light-emitting element when receiving the first position signal, sends a second activation signal to the second light-emitting element when receiving the second position signal, and sends a third activation signal to the third light-emitting element when receiving the third position signal.

[0010] In some embodiments, when the sensor senses that the angle of the cutting plane flipped relative to the reference plane with the left-right direction as the axis is within a second preset angle range, it outputs a second position signal to the controller; wherein the second preset angle range is [-α, +α], the angle is positive when the cutting plane flips upward relative to the reference plane, and α is greater than or equal to 0° and less than 90°.

[0011] In some embodiments, when the sensor senses that the angle at which the cutting plane intersects the reference plane with the left-right direction as the axis is within a first preset angle range, the sensor outputs a first position signal to the controller; wherein the first preset angle range is (α, β], β is greater than α and less than or equal to 90°.

[0012] In some embodiments, when the sensor senses that the angle at which the cutting plane intersects the reference plane with the left and right directions as the axis is flipped is within a third preset angle range, the sensor outputs a third position signal to the controller; wherein the third preset angle range is [-β, -α), β is greater than α and less than or equal to 90°.

[0013] In some embodiments, the controller is connected to the motor, and outputs a deceleration signal or a stop signal to the motor when receiving the first position signal or the third position signal.

[0014] In some embodiments, the second light emitting element is lit after receiving the second activation signal, and the light color of the second light emitting element is different from that of the first light emitting element and the third light emitting element.

[0015] In some embodiments, the sensor is a six-axis inertial sensor.

[0016] In some embodiments, the handheld cutting tool is further provided with a level indicator switch, which has an on position and an off position. When the level indicator switch is in the off position, the plurality of indicators and sensors do not work.

[0017] A pruning machine comprises: a main shell body, which is formed with a storage space; a first blade and a second blade having multiple cutting edges, which are installed on a support rod extending forward from the front end of the main shell body, and the first blade and the second blade can realize mutually parallel cutting planes; a motor, which is at least partially arranged in the storage space and can drive the first blade and the second blade to move relative to each other through a transmission component; a power supply device, which can at least supply power to the motor; the pruning machine also includes: multiple indicators, which are respectively arranged at multiple different positions of the support rod along the front and rear directions; a sensor, which can sense the relative position relationship between the cutting plane and the reference plane and output a corresponding position signal; a controller, which is connected to the sensor and the multiple indicators, and can receive the position signal sent by the sensor and send an activation signal to the indicator at the corresponding position.

[0018] The benefit of the present application is that it can accurately, conveniently and inexpensively implement the function of prompting the relative position relationship between the cutting plane and the reference plane for a handheld cutting tool that requires the cutting plane not to be tilted, so as to ensure that the cutting results of the handheld cutting tool can meet the user's psychological expectations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional diagram of a handheld cutting tool as an embodiment of the present application;

[0020] Figure 2 yes Figure 1 a top view of the handheld cutting tool shown;

[0021] Figure 3 yes Figure 1 An exploded view of the cutting device and the indicator in the handheld cutting tool shown;

[0022] Figure 4 yes Figure 1 A schematic diagram showing the second indicator member indicating when the cutting plane of the handheld cutting tool is relatively horizontal;

[0023] Figure 5 yes Figure 1 A schematic diagram showing the first indicator member indicating when the cutting plane of the handheld cutting tool is tilted upward;

[0024] Figure 6 yes Figure 1 A schematic diagram showing the third indicator providing an indication when the cutting plane of the handheld cutting tool sinks backwards;

[0025] Figure 7 It is a circuit schematic diagram of a handheld cutting tool as an embodiment of the present application.

[0026] Caption:

[0027] 100. Hand-held cutting tools / pruning machines;

[0028] 10. Main housing; 20. Cutting device; 30. Motor; 40. Power supply device; 50. Indicator; 60. Sensor; 70. Controller;

[0029] 21. first blade; 22. second blade; 23. support rod; 51. first indicator / first luminous member; 52. second indicator / second luminous member; 53. third indicator / third luminous member;

[0030] 101. The straight line where the projection of the reference plane in the left-right direction lies; 201. The straight line where the projection of the cutting device in the left-right direction lies. DETAILED DESCRIPTION

[0031] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0032] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0033] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0034] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0035] In this application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, etc. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0036] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0037] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0038] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit or multiple units.

[0039] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0040] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0041] The technical solution proposed in this application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] refer to Figure 1 , which shows a handheld cutting tool 100 as an embodiment of the present application. In the present embodiment, the handheld cutting tool 100 is a pruning machine, and the following text mainly provides an exemplary description around the pruning machine 100. It can be understood that the type of handheld cutting tool 100 in the present application is not limited to a pruning machine. In other embodiments, the handheld cutting tool 100 can also be a chain saw, a mower, etc. In essence, any handheld cutting tool 100 that has an angle requirement for the cutting plane can implement the technical solution of the present application. At the same time, Figure 1 Six directions of the handheld cutting tool 100 in the present application, namely, up, down, left, right, front, and back, are also defined.

[0043] like Figure 1 As shown, the handheld cutting tool 100 includes a main shell 10, a cutting device 20 and a motor 30. Among them, the main shell 10 constitutes the main body of the handheld cutting tool 100, and a storage space can be formed inside it. Other components to be described later can be connected to the main shell 10, supported by the main shell 10, and stored or partially stored in the storage space of the main shell 10. The main shell 10 can be separate, for example, formed by the left and right shells, or it can be integrated. The main shell 10 generally also has a grip or handle for the user to hold. The cutting device 20 is a component of the handheld cutting tool 100 that actually performs the cutting operation, and can include at least functional parts such as blades and chains, and can form at least one cutting plane. The cutting device 20 generally also includes a support member, a shield, etc. for mounting the functional parts.

[0044] by Figure 1 Taking the pruning machine 100 shown as an example, the cutting device 20 may include a first blade 21, a second blade 22 and a support rod 23. The support rod 23 is connected to the main housing 10 of the pruning machine 100 and extends forward from the front end of the main housing 10 out of the main housing 10. The first blade 21 and the second blade 22 are mounted on the support rod 23. Both have a plurality of cutting edges arranged in the longitudinal direction and extend in respective cutting planes. When cutting is performed, the cutting planes are parallel to each other.

[0045] The motor 30 is the prime mover of the handheld cutting tool 100 and can be accommodated in the accommodation space of the main housing 10. When the rotating shaft of the motor 30 rotates, it can directly or indirectly drive the cutting device 20 to operate through the transmission assembly. Figure 1Taking the pruning machine 100 as an example, the motor 30 and the cutting device 20 also have a transmission assembly, which may include an eccentric mechanism, capable of converting the rotational motion of the motor 30 shaft into the reciprocating motion of the first and second blades 21 and 22. After the power transmission between the motor 30 and the transmission assembly, the first and second blades 21 and 22 move relative to each other to implement cutting. In some embodiments, the motor 30 is a DC motor.

[0046] The handheld cutting tool 100 may include a power supply device 40 in addition to the main housing 10, the cutting device 20 and the motor 30. The power supply device 40 can at least supply electrical energy to the motor 30, and may also supply power to other components or related circuits. Specifically, a drive circuit is provided between the power supply device 40 and the motor 30, and the electrical energy provided by the power supply device 40 may be transmitted to the motor 30 by the drive circuit through a DC bus. In some embodiments, the power supply device 40 is a battery pack, which is detachably connected to the handheld cutting tool 100, and a mounting portion for disassembly and assembly of the battery pack is formed on the main housing 10. In other embodiments, the handheld cutting tool 100 may also be powered by AC power, an AC power supply in combination with a power adapter or a transformer, rectifier, or voltage stabilizing circuit.

[0047] In this application, in order to assist the user to accurately and conveniently adjust the cutting angle of the handheld cutting tool 100 and ensure that the cutting plane is not tilted, reference is made to Figures 2 to 7 As shown, the handheld cutting tool 100 further includes a plurality of indicator members 50, a sensor 60 and a controller 70. The controller 70 determines the relative position relationship between the current cutting plane and the reference plane based on the data from the sensor 60 and selectively sends activation signals to some of the indicator members 50 at a plurality of different positions, so as to provide the user with an indication of the above relative position relationship through the position of the activated indicator member 50.

[0048] The multiple indicator members 50 are respectively arranged at multiple different positions of the cutting device 20 and / or the main housing 10 of the handheld cutting tool 100. For example, they can be arranged at multiple different positions of the cutting device 20, or at multiple different positions of the main housing 10, or they can be arranged partially on the cutting device 20 and partially on the main housing 10. In some embodiments, the multiple indicator members 50 can be arranged at multiple different positions of the support member in the cutting device 20. Figure 1Taking the pruning machine 100 shown as an example, a plurality of indicator members 50 may be arranged on the support rod 23 of the pruning machine 100. Taking a chain saw as an example, a plurality of indicator members 50 may also be arranged on the guide plate of the chain saw. In other embodiments, a plurality of indicator members 50 may be arranged at a plurality of different positions of the guard in the cutting device 20, for example, they may be arranged on a guard of a chain saw or a mower for protecting a chain, a mowing rope, etc. In some embodiments, the indicator members 50 may be light strips, light beads, or other luminous members. In some embodiments, some of the plurality of indicator members 50 may be of a different type from other indicator members 50, and may present different indication modes when activated, for example, the brightness, light color, or flashing frequency of the luminous members at different positions may be different.

[0049] In some embodiments, the plurality of indicators 50 may include at least a first indicator 51, a second indicator 52 and a third indicator 53, for example, first, second and third light emitting elements 51, 52 and 53. Figure 1 As shown, the first, second and third light-emitting components 51, 52 and 53 can be arranged along the front-to-back direction, that is, the longitudinal direction of the pruning machine 100. Among them, the first light-emitting component 51 is located at the front side, the third light-emitting component 53 is located at the rear side, and the second light-emitting component 52 is located between the first and third light-emitting components 51 and 53 in the front-to-back direction. In other embodiments, the first, second and third light-emitting components 51, 52 and 53 can also be arranged along the left-right direction, that is, in the horizontal direction. Among them, the first light-emitting component 51 is located on the left side, the third light-emitting component 53 is located on the right side, and the second light-emitting component 52 is located between the first and third light-emitting components 51 and 53 in the left-to-right direction. It can be understood that in other embodiments, the number of indicator components 50 can be more than three, and the positions can also be deployed in other irregular ways.

[0050] The sensor 60 is connected to the controller 70, and can sense the relative position relationship between the cutting plane and the reference plane when the handheld cutting tool 100 implements cutting, and can at least output a position signal corresponding to the current relative position relationship to the controller 70. In some embodiments, the sensor 60 is an inertial sensor, and the inertial sensor 60 can be a combination of one or more of a gyroscope, an accelerometer, and a magnetometer. In some embodiments, the sensor 60 is a six-axis inertial sensor, which is a combination of a three-axis gyroscope and a three-axis accelerometer, and can sense motion information in three-axis directions in a rectangular coordinate system. In some embodiments, the reference plane is a horizontal plane, that is, a plane perpendicular to the direction of gravity. In other embodiments, the reference plane can also be freely set to other planes in advance to meet the requirements of different terrains.

[0051] In some embodiments, the sensor 60 can at least send any one of the first position signal, the second position signal and the third position signal. In some embodiments, continuing from the above, when the first, second and third indicator members 51, 52 and 53 are arranged along the front-to-back direction, the sensor 60 can sense the angle of the current cutting plane flipped relative to the reference plane with the left-right direction as the axis, and send any one of the first, second and third position signals to the controller 70 depending on the flip angle.

[0052] Specifically, taking the pruning machine 100 as an example, refer to Figures 4 to 6 The first, second and third indicator members 51, 52 and 53 are arranged on the support rod 23 of the blade of the pruning machine 100 along the front-rear direction. Figure 4 As shown, when the sensor 60 senses that the angle θ of the current cutting plane flipped relative to the reference plane with the left-right direction as the axis is in the second preset angle range, that is, in [-α, +α], the sensor 60 outputs a second position signal to the controller 70. Wherein, α is greater than or equal to 0° and less than 90°. Figure 5 As shown, when the sensor 60 senses that the angle θ of the current cutting plane flipped relative to the reference plane with the left-right direction as the axis is in the first preset angle range, that is, in (+α, +β], the sensor 60 outputs a first position signal to the controller 70. Wherein β is greater than α and less than or equal to 90°. Figure 6 As shown, when the sensor 60 senses that the angle θ of the current cutting plane flipped relative to the reference plane with the left-right direction as the axis is in the third preset angle range, that is, in [-β, -α), the sensor 60 outputs a third position signal to the controller 70. In some embodiments, the above α is less than or equal to 40°, and optionally, α can be less than or equal to 30°, for example, the above α can be 20°. In some embodiments, the above β is greater than or equal to 50°, and optionally, β can be greater than or equal to 60°, for example, the above β can be 90°.

[0053] It should be noted here that the angle of the cutting plane flipped relative to the reference plane with the left-right direction as the axis is the angle between the projection of the cutting plane normal vector on the yoz plane and the projection of the reference plane normal vector on the yoz plane in the rectangular coordinate system with the positive z-axis upward, the positive y-axis forward, and the positive x-axis rightward. The angle is positive in the counterclockwise direction and negative in the clockwise direction. Taking a pruning machine as an example, Figures 4 to 6 As shown, the flip angle can be equivalent to the angle between the straight line 201 where the projections of the support rod 23 and / or the first and second blades 21 and 22 in the left and right directions are located and the straight line 101 where the projections of the reference plane in the left and right directions are located. If the straight line 201 is higher at the front and lower at the back, the flip angle is positive; if it is lower at the front and higher at the back, the flip angle is negative.

[0054] In some other embodiments, following the above, when the first, second and third indicator members 51, 52 and 53 are arranged in the left-right direction, the sensor 60 can sense the angle at which the current cutting plane is flipped with the axis intersecting the reference plane in the front-to-back direction, and send any one of the first, second and third position signals to the controller 70 depending on the flip angle. Specifically, when the sensor 60 senses that the angle θ' at which the current cutting plane is flipped with the axis in the front-to-back direction relative to the reference plane is in [-α', +α'], the sensor 60 outputs the second position signal to the controller 70. Wherein, α' is greater than or equal to 0° and less than 90°. When the sensor 60 senses that the angle θ' at which the current cutting plane is flipped with the axis in the front-to-back direction relative to the reference plane is in (+α', +β'], the sensor 60 outputs the first position signal to the controller 70. Wherein, β' is greater than α' and less than or equal to 90°. When the sensor 60 senses that the angle θ' at which the current cutting plane is flipped with the axis in the front-to-back direction relative to the reference plane is in [-β', -α'), the sensor 60 outputs the third position signal to the controller 70. The numerical settings of α' and β' are similar to those of α and β described above.

[0055] Similar to the above, the angle at which the cutting plane is flipped relative to the reference plane with the front-to-back direction as the axis is the angle between the projection of the cutting plane normal vector on the zox plane and the projection of the reference plane normal vector on the zox plane in a rectangular coordinate system with the upward direction being the positive direction of the z-axis, the forward direction being the positive direction of the y-axis, and the rightward direction being the positive direction of the x-axis. The angle is positive in the counterclockwise direction and negative in the clockwise direction. Taking a pruning machine as an example, the flip angle can be equivalent to the angle between the straight line where the projection of the support rod 23 and / or the first and second blades 21, 22 in the front-to-back direction is located and the straight line where the projection of the reference plane in the front-to-back direction is located. If the projection straight line of the support rod 23 and / or the first and second blades 21, 22 is higher on the left and lower on the right, the flip angle is positive, and if it is higher on the right and lower on the left, the flip angle is negative.

[0056] The controller 70 may be an MCU (Microcontroller Unit), an ARM (Advanced Reduced Instruction Set Computing Machine), a DSP (Digital Signal Processor), etc., which can run relevant control programs to implement various functional management and control. Figure 7As shown, the controller 70 is connected to the sensor 60 and the plurality of indicators 50, and can send an activation signal to the indicator 50 at the corresponding position to activate the indicator 50 after receiving the position signal sent by the sensor 60 that indicates the relative position relationship between the current cutting plane and the reference plane. Specifically, there is a corresponding relationship between the serial number of the indicator 50 or the light-emitting member, the serial number of the preset angle range sensed by the sensor 60, the serial number of the position signal sent by the sensor 60, and the serial number of the activation signal sent by the controller 70.

[0057] In some embodiments, following the foregoing, after receiving the second position signal from the sensor 60, that is, the sensor 60 senses that the flip angle of the cutting plane is within the second preset angle range, the controller 70 sends an activation signal to the second indicator 52 or the second light emitting element 52, so that the second indicator 52 is activated or the second light emitting element 52 is illuminated. Figure 4 As shown, the body of the pruning machine 100 is substantially horizontal relative to the reference plane, and the flip angle of the cutting plane relative to the reference plane with the left-right direction as the axis is within [-α, +α]. The controller 70 receives a second position signal representing the above relative position relationship and lights up the second light-emitting member 52 in the middle position in the front-to-back direction. The light color of the second light-emitting member 52 may be green, so that the position and light color of the second light-emitting member 52 can be used to indicate to the user that the current angle meets the horizontal cutting requirement.

[0058] After receiving the first position signal from the sensor 60, that is, the sensor 60 senses that the current flip angle of the cutting plane is within the first preset angle range, the controller 70 sends an activation signal to the first indicator 51 or the first light-emitting element 51, so that the first indicator 51 is activated or the first light-emitting element 51 is illuminated. Figure 5 As shown, the front end of the pruning machine 100 is tilted upward compared with the reference surface, and the turning angle of the cutting plane relative to the reference surface with the left-right direction as the axis is within (+α, +β], and the controller 70 receives the first position signal representing the above relative position relationship and lights up the first light-emitting member 51 located at the front side in the front-to-back direction. The light color of the first light-emitting member 51 can be red, so that the position and light color of the first light-emitting member 51 can be used to indicate to the user that the current angle does not meet the horizontal cutting requirement.

[0059] After receiving the third position signal from the sensor 60, that is, the sensor 60 senses that the flip angle of the cutting plane is within the third preset angle range, the controller 70 sends an activation signal to the third indicator 53 or the third light emitting element 53, so that the third indicator 53 is activated or the third light emitting element 53 is illuminated. Figure 6As shown, the body of the pruning machine 100 sinks compared to the front end of the reference surface, and the flip angle of the cutting plane relative to the reference plane with the left-right direction as the axis is within (-β, -α], and the controller 70 receives the third position signal representing the above relative position relationship and lights up the third light-emitting member 53 located at the rear position in the front-to-back direction. The light color of the third light-emitting member 53 can be red, so that the position and light color of the third light-emitting member 53 can be used to indicate to the user that the current angle does not meet the horizontal cutting requirement. The embodiment in which the controller 70 and the sensor 60 face a larger number of indicator members 50 or multiple indicator members 50 deployed along the left-right direction to realize the prompt can be obtained based on the above reasoning and will not be repeated.

[0060] In some embodiments, the controller 70 also assumes the control work of the operation of the motor 30. For example, the controller 70 outputs a control signal to the drive circuit to adjust the speed and direction of the motor 30. After receiving the position signal from the sensor 60 indicating that the current cutting angle cannot meet the horizontal cutting requirement, for example, when receiving the first position signal or the third position signal, the controller 70 can also output a deceleration signal or a stop signal to the motor 30 to avoid poor cutting results achieved by the handheld cutting tool 100.

[0061] In some embodiments, the handheld cutting tool 100 also has a horizontal indication switch, which can be set near a position on the main housing 10 such as a grip portion and can be operated by the user to switch the switch position. The horizontal indication switch has an on position and an off position. When the horizontal indication switch is in the on position, the horizontal indication function of the handheld cutting tool 100 is turned on. The above-mentioned multiple indicator members 50 and sensors 60 cooperate with the controller 70 to indicate the relative position relationship between the current cutting plane and the reference plane to the user through the activation of the indicator members 50 at different positions, so as to ensure that the cutting results meet the user's psychological expectations. When the horizontal indication switch is in the off position, the horizontal indication function of the handheld cutting tool 100 is turned off, and the above-mentioned multiple indicator members 50 and sensors 60 may not work, thereby saving resources when there is no cutting angle requirement.

[0062] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A handheld cutting tool comprising: A main housing is formed with a receiving space; a cutting device supported by the main housing and extending in at least one cutting plane; a motor, at least partially disposed in the accommodating space and capable of driving the cutting device to perform cutting; a power supply device, capable of supplying power to the motor at least; Characterized in that the handheld cutting tool also includes: A plurality of indicator members, respectively disposed at a plurality of different positions of the cutting device and / or the main housing; A sensor capable of sensing the relative position relationship between the cutting plane and the reference plane and outputting a corresponding position signal; The controller is connected to the sensor and the plurality of indicators, and is capable of receiving the position signal sent by the sensor and sending an activation signal to the indicator at the corresponding position.

2. The handheld cutting tool according to claim 1, characterized in that: The multiple indicator members include at least a first light-emitting member, a second light-emitting member and a third light-emitting member arranged along the front-to-back direction; wherein the first light-emitting member is located at the front side, the third light-emitting member is located at the rear side, and the second light-emitting member is located between the first light-emitting member and the third light-emitting member.

3. The handheld cutting tool according to claim 1, characterized in that: The multiple indicator members include at least a first light-emitting member, a second light-emitting member and a third light-emitting member arranged along the left-right direction; wherein the first light-emitting member is located on the left, the third light-emitting member is located on the right, and the second light-emitting member is located between the first light-emitting member and the third light-emitting member.

4. The handheld cutting tool according to claim 2, characterized in that: The sensor is capable of sending at least one of a first position signal, a second position signal, and a third position signal; the controller sends a first activation signal to the first light-emitting component when receiving the first position signal, sends a second activation signal to the second light-emitting component when receiving the second position signal, and sends a third activation signal to the third light-emitting component when receiving the third position signal.

5. The handheld cutting tool according to claim 4, characterized in that: When the sensor senses that the angle of the cutting plane flipped relative to the reference plane with the left-right direction as the axis is within a second preset angle range, the sensor outputs a second position signal to the controller; wherein the second preset angle range is [-α, +α], the angle is positive when the cutting plane is flipped upward relative to the reference plane, and α is greater than or equal to 0° and less than 90°.

6. The handheld cutting tool according to claim 5, characterized in that: When the sensor senses that the angle at which the cutting plane intersects the reference plane with the left-right direction as the axis is within a first preset angle range, the sensor outputs a first position signal to the controller; wherein the first preset angle range is (α, β], where β is greater than α and less than or equal to 90°.

7. The handheld cutting tool according to claim 5, characterized in that: When the sensor senses that the angle at which the cutting plane intersects the reference plane with the left-right direction as the axis is within a third preset angle range, the sensor outputs a third position signal to the controller; wherein the third preset angle range is [-β, -α), β is greater than α and less than or equal to 90°.

8. The handheld cutting tool according to claim 6 or 7, characterized in that: The controller is connected to the motor, and outputs a deceleration signal or a stop signal to the motor when receiving the first position signal or the third position signal.

9. The handheld cutting tool according to any one of claims 4 to 7, characterized in that: The second light emitting element is lit after receiving the second activation signal, and the light color of the second light emitting element is different from those of the first light emitting element and the third light emitting element.

10. The handheld cutting tool according to claim 1, characterized in that: The sensor is a six-axis inertial sensor.

11. The handheld cutting tool according to claim 1, characterized in that: The handheld cutting tool is further provided with a level indication switch, which has an on position and a off position. When the level indication switch is in the off position, the multiple indication members and the sensor do not work.

12. A pruning machine, comprising: A main housing is formed with a receiving space; A first blade and a second blade having a plurality of cutting edges are mounted on a support rod extending forward from the front end of the main housing, wherein the first blade and the second blade can realize mutually parallel cutting planes; a motor, at least partially disposed in the accommodating space and capable of driving the first blade and the second blade to move relative to each other through a transmission assembly; a power supply device, capable of supplying power to the motor at least; It is characterized in that the pruning machine also includes: a plurality of indicators, which are respectively arranged at a plurality of different positions of the support rod along the front-rear direction; a sensor, which can sense the relative position relationship between the cutting plane and the reference plane and output a corresponding position signal; a controller, which is connected to the sensor and the plurality of indicators, and can receive the position signal sent by the sensor and send an activation signal to the indicator at the corresponding position.

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