Power tool

By introducing locking structure and damping parts into the power tool, combined with limiting parts and connector design, the cumbersome problem of battery disassembly of power tool is solved, and the stable connection of the battery pack during work is achieved and the convenience of disassembly is improved, thereby improving the user experience.

CN115347311BActive Publication Date: 2025-08-01ZHEJIANG LITHELI TECH CO LTD
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Patent Information

Application Number
CN202110529454.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-05-14
Publication Date
2025-08-01
Estimated Expiration
2041-05-14

AI Technical Summary

Technical Problem

Existing power tools are cumbersome to operate when disassembling the battery, and the user experience is poor.

Method used

A power tool is designed, using a combination of locking structure and damping parts. The motor assembly locks the battery pack when starting up and can be detached when shutting down. It combines the limiting parts and connector design to ensure that the battery pack is stable during work and is convenient for disassembly.

Benefits of technology

It realizes a stable connection of the battery pack when the motor assembly is working, avoids sudden power outage caused by vibration, and is easy to operate during disassembly, improving user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a power tool. The power tool includes a main body, and the main body includes: a housing, the housing includes a battery compartment; a motor assembly, the motor assembly is disposed within the housing; a battery pack, the battery pack is installed in the battery compartment, and the battery pack is used to supply power to the motor assembly; a locking structure, the locking structure includes a locked state and an unlocked state; wherein, when the motor assembly switches to the starting state, the locking structure switches to the locked state to lock the battery pack located in the battery compartment, and when the motor assembly switches to the shutdown state, the locking structure switches to the unlocked state, and the battery pack is detachably installed in the battery compartment.
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Description

Technical Field

[0001] This application relates to the technical field of terminals, and particularly to a power tool. Background Art

[0002] Currently, for some power tools, it is usually necessary to configure a battery inside to supply power. In a related technology, in order to fix the battery in the power tool, a baffle or other parts can be set on the power tool to fix the battery, so that the battery can be fixed during both the working process and the non-working process.

[0003] However, for users, when the battery needs to be removed, it is usually necessary to first remove parts such as the baffle that fix the battery, which is cumbersome to disassemble and assemble and provides a poor experience. Summary of the Invention

[0004] This application provides a power tool to solve the deficiencies in the related technology.

[0005] According to the first aspect of the embodiments of this application, a power tool is provided, including a main body, and the main body includes:

[0006] A housing, and the housing includes a battery compartment;

[0007] A motor assembly, and the motor assembly is disposed inside the housing;

[0008] A battery pack, and the battery pack is installed in the battery compartment and is used to supply power to the motor assembly;

[0009] A locking structure, and the locking structure includes a locking state and an unlocking state;

[0010] Wherein, when the motor assembly switches to the starting state, the locking structure switches to the locking state to lock the battery pack located in the battery compartment; when the motor assembly switches to the shutdown state, the locking structure switches to the unlocking state, and the battery pack is detachably installed in the battery compartment.

[0011] Optionally, the battery pack includes a first limiting portion, the locking structure includes a first switch assembly, and the first switch assembly includes a second limiting portion;

[0012] Wherein, when the first switch assembly is turned on, it triggers the motor assembly; when the motor assembly switches to the starting state, the first limiting portion cooperates with the second limiting portion to lock the battery pack; when the first switch assembly is turned off, it shuts down the motor assembly; when the motor assembly switches to the shutdown state, the first limiting portion and the second limiting portion are disengaged.

[0013] Optionally, the battery pack is inserted into the battery compartment;

[0014] The first limiting portion includes a buckle groove or a protruding portion, and the second limiting portion includes a buckle. When the buckle is clamped with the buckle groove or the protruding portion, the battery pack is limited in the direction opposite to the insertion direction of the battery pack.

[0015] Optionally, the housing further includes a first mating port, and the first mating port is communicated with the battery compartment;

[0016] The first switch assembly includes a first switch body and a trigger button. The trigger button is disposed in the first mating port, and the trigger button includes the second limiting portion;

[0017] Wherein, when the trigger button moves along the first mating port towards the first switch body, the second limiting portion moves towards the first limiting portion. Until the trigger button triggers the first switch body, the motor assembly switches to the starting state, and the second limiting portion cooperates with the first limiting portion to limit the battery pack.

[0018] Optionally, the main body further includes a first connector, and the battery pack includes a second connector;

[0019] When the battery pack is inserted into the battery compartment, the first connector is plugged into the second connector.

[0020] Optionally, one of the first connector and the second connector includes a contact hole, and the other includes a pin-shaped pin. When the battery pack is inserted into the battery compartment, the pin-shaped pin is inserted into the contact hole for electrical conduction.

[0021] Optionally, the battery pack further includes a third connector and a fourth connector. The third connector is used to conduct electricity with an external power source to charge the battery pack, and the fourth connector is used to connect with a mobile terminal to charge the mobile terminal.

[0022] According to a second aspect of the embodiments of the present disclosure, there is provided a power tool, including a main body, and the main body includes:

[0023] A housing, the housing includes a battery compartment;

[0024] A damping member, the damping member is disposed on the housing and close to the battery compartment;

[0025] A motor assembly, the motor assembly is disposed in the housing;

[0026] A battery pack, the battery pack is used to supply power to the motor assembly;

[0027] Wherein, when the battery pack is inserted into the battery compartment, a side edge of the battery pack abuts against the damping member, and the battery pack is detachably assembled in the battery compartment.

[0028] Optionally, the battery compartment penetrates to the first end of the housing, the battery pack is inserted into the battery compartment from the first end, the battery pack includes a protruding edge, and the protruding edge abuts against the end face of the first end of the housing.

[0029] Optionally, the battery compartment penetrates to the first end of the housing, the housing further includes an avoidance notch located at the first end, and a part of the battery pack is exposed through the avoidance notch.

[0030] Optionally, the main machine further includes:

[0031] A locking structure, the locking structure including a locked state and an unlocked state;

[0032] Wherein, when the motor assembly switches to the starting state, the locking structure switches to the locked state to lock the battery pack located in the battery compartment, and when the motor assembly switches to the shutdown state, the locking structure switches to the unlocked state, and the battery pack is detachably installed in the battery compartment.

[0033] Optionally, the battery pack includes a first limiting portion, the locking structure includes a first switch assembly, and the first switch assembly includes a second limiting portion;

[0034] Wherein, when the first switch assembly is turned on, it triggers the motor assembly. When the motor assembly switches to the starting state, the first limiting portion and the second limiting portion cooperate to lock the battery pack. When the first switch assembly is turned off, it shuts down the motor assembly, and the motor assembly switches to the shutdown state, and the first limiting portion and the second limiting portion are disengaged.

[0035] Optionally, the first limiting portion includes a buckle groove or a protrusion, the second limiting portion includes a buckle, and when the buckle is clamped with the buckle groove or the protrusion, the battery pack is limited in the direction opposite to the insertion direction of the battery pack.

[0036] Optionally, the housing further includes a first mating port, and the first mating port communicates with the battery compartment;

[0037] The first switch assembly includes a first switch body and a trigger button, the trigger button is disposed in the first mating port, and the trigger button includes the second limiting portion;

[0038] Wherein, the trigger button moves along the first mating port towards the first switch body, the second limiting portion moves towards the first limiting portion, until the trigger button triggers the first switch body, the motor assembly switches to the starting state, and the second limiting portion and the first limiting portion cooperate to limit the battery pack.

[0039] Optionally, the host further includes a first connector, and the battery pack includes a second connector;

[0040] The battery pack is inserted into the battery compartment, and the first connector is plugged into the second connector.

[0041] Optionally, the first connector includes contact holes, and the second connector includes needle-shaped pins. When the battery pack is inserted into the battery compartment, the needle-shaped pins are inserted into the contact holes for electrical conduction.

[0042] According to a third aspect of the embodiments of the present disclosure, there is provided a power tool, including:

[0043] A host, the host includes a motor assembly and a first switch assembly;

[0044] A base, the base is assembled with the host;

[0045] A push rod, the push rod includes a second switch assembly;

[0046] Wherein, when the push rod is assembled to the base, the first switch assembly remains off, and the second switch assembly is used to start or stop the motor assembly. When the push rod and the base are disassembled from the host, the first switch assembly is used to start or stop the motor assembly.

[0047] Optionally, the first switch assembly includes a first switch body and a trigger button, and the trigger button moves along a preset direction to trigger or disconnect the first switch body;

[0048] When the host is assembled to the base, the base locks the trigger button to limit the trigger button from triggering the first switch body.

[0049] Optionally, the base includes a second mating port, and the trigger button includes a recessed groove;

[0050] When the host is assembled with the base, the trigger button passes through the second mating port, the recessed groove faces the edge of the second mating port, and the host and the base slide relative to each other, so that the edge of the second mating port extends into the recessed groove to lock the trigger button.

[0051] Optionally, the host further includes a housing, and one of the housing and the base includes a first engaging portion, and the other includes a second engaging portion that cooperates with the first engaging portion;

[0052] Wherein, the edge of the second mating port is disposed in the recessed groove, and the first engaging portion and the second engaging portion maintain an engaged state.

[0053] Optionally, the main body further includes a housing and a battery pack. The housing includes a battery compartment that penetrates to the first end, and the battery pack is inserted into the battery compartment from the first end.

[0054] The base includes a fitting cavity. The main body is assembled in the fitting cavity, and the main body slides relative to the fitting cavity. When the edge of the second fitting port extends into the recessed groove, the inner wall of the fitting cavity abuts against the surface of the battery pack near the first end.

[0055] The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

[0056] As can be seen from the above embodiments, in the present application, when the motor assembly is turned off, the battery pack is detachably assembled in the battery compartment for the convenience of the user to disassemble; when the motor assembly is started, the battery pack is locked in the battery compartment by the locking structure, so as to avoid the battery pack falling off due to vibration during the operation of the motor assembly, resulting in a sudden power-off of the motor assembly and the electric tool stopping working.

[0057] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0059] Figure 1 is a schematic structural diagram of an electric grass shear shown according to an exemplary embodiment.

[0060] Figure 2 is a schematic structural diagram of a main body shown according to an exemplary embodiment.

[0061] Figure 3 is a schematic structural diagram of a main body shown according to an exemplary embodiment.

[0062] Figure 4 is Figure 3 an exploded schematic diagram of the main body in

[0063] Figure 5 is Figure 4 a cross-sectional schematic diagram of the main body in

[0064] Figure 6 is Figure 5 a partial enlarged schematic diagram of

[0065] Figure 7 is a partial top view schematic diagram of a main body shown according to an exemplary embodiment.

[0066] Figure 8 is Figure 7 a partially enlarged schematic view of

[0067] Figure 9 a schematic structural view of a trigger button shown according to an exemplary embodiment.

[0068] Figure 10 a schematic structural view of a battery pack shown according to an exemplary embodiment.

[0069] Figure 11 is Figure 1 a partially enlarged schematic view of Detailed Description of the Invention

[0070] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0071] The terms used in the present application are for the purpose of describing particular embodiments only and are not intended to limit the present application. The singular forms "a", "the", and "said" used in the present application and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0072] It should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0073] Figure 1 a schematic structural view of an electric grass shear 100 shown according to an exemplary embodiment, Figure 2 a schematic structural view of a main unit 1 shown according to an exemplary embodiment. As Figure 1-2As shown, the electric grass shear 100 may include a main body 1, a push rod 2, and a base 3. Among them, the main body 1 can be detachably assembled with the base 3, and the base 3 can be connected to the push rod 2. In this way, the user can hold the push rod 2 and push the electric grass shear 100 forward or in other target directions to cut the green plants in various areas. Or, as Figure 2 shown, the user can also disassemble the push rod 2 and the base 3 and hold the main body 1 to trim the green plants, and can specifically select according to the height and position of the green plants to be trimmed. This application does not limit this. In fact, as Figure 2 shown in Figure 3 , the main body 1 can be configured with short knives to comb the green plants. In other embodiments, as Figure 3 shown, the main body 1 can also be configured with long knives to trim the lawn or green plants. The user can select the knives suitable for the current trimming object according to actual needs. This application does not limit this. The following will take the main body 1 configured with long knives as an example to elaborate on the technical solution of this application in detail.

[0074] As Figures 3-6 shown, the main body 1 may include a housing 11, a motor assembly 12, a battery pack 13, and a first switch assembly 14. Among them, the motor assembly 12 can be assembled in the housing 11 and the motor assembly 12 can also be connected to the knives, so that the knives can be driven by the motor assembly 12 to realize the trimming of the green plants. The housing 11 may further include a battery compartment 111, and the battery pack 13 is detachably assembled in the battery compartment 111. The battery pack 13 can supply power to the motor assembly 12, so that the electric grass shear 100 does not need an external power supply, which is convenient for operation. Of course, in order to save power consumption and extend the battery life of the battery pack 13, it is necessary to switch the state of the motor assembly 12 so that it can be switched between the start state and the shutdown state. Specifically, the state of the motor assembly 12 can be switched through the first switch assembly 14. For example, when the first switch assembly 14 is turned on, the motor assembly 12 is triggered, and the battery pack 13 can supply power to the motor assembly 12. The motor assembly 12 can be switched to the start state, and when the first switch assembly 14 is turned off, the motor assembly 12 is turned off, the battery pack 13 stops supplying power, and the motor assembly 12 can be switched to the shutdown state.

[0075] As Figure 7 and Figure 8As shown, for the assembly of the battery pack 13 and the battery compartment 111, the main body 1 may further include a first connector 15, and the battery pack 13 may include a second connector 131. When the battery is inserted into the battery compartment 111 from one end of the housing 11, the first connector 15 and the second connector 131 are plugged together. Moreover, the first connector 15 may also be connected to the motor assembly 12 through the first switch assembly 14, so that the on / off of the motor assembly 12 can be controlled through the first switch assembly 14. Also, due to the plugging of the first connector 15 and the second connector 131, a certain amount of force can be provided to the battery pack 13 to prevent the battery pack 13 from slipping out of the battery compartment 111. Among them, the combination of the first connector 15 and the second connector 131 may include various mating female and male connectors. For example, the first connector 15 may include pin-shaped pins, and the second connector 131 may include contact holes. Thus, when the battery pack 13 is inserted into the battery compartment 111, the pin-shaped pins and the contact holes can be plugged together simultaneously, realizing electrical conduction while providing a certain limiting force for the battery pack 13. Moreover, since the battery pack 13 includes contact holes, the occupied space after the battery pack 13 is disassembled can be reduced, and it is convenient to carry, especially when the battery pack 13 can be used as an independent mobile power source. Of course, in other embodiments, it may also be that the first connector 15 includes contact holes and the second connector 131 includes pin-shaped pins, and the present application does not limit this.

[0076] Certainly, in order to better achieve the stable installation of the battery pack 13 in the battery compartment 111, still taking Figure 7 and Figure 8 as shown, the main body 1 may further include a damping member 16. The damping member 16 may be disposed on the housing 11 and near the battery compartment 111. For example, in the embodiment provided by the present application, the damping member 16 may be disposed on both sides of the battery compartment 111. When the battery pack 13 is inserted into the battery compartment 111, the side edge of the battery pack 13 may abut against the damping member 16, and the battery pack 13 is limited by the damping member 16, so that the battery pack 13 is detachably assembled in the battery compartment 111. The damping member 16 may be fixedly connected to the housing 11, or the housing 11 may include assembly holes, and the damping member 16 may be fixed by interference fit with the assembly holes. Of course, in some other embodiments, the first connector 15 and the second connector 131 may also be in contact conduction, that is, when the cooperation of the first connector 15 and the second connector 131 cannot provide a limiting force for the battery pack 13 body, the battery pack 13 can also be limited by the damping member 16 alone, and it can be designed as needed, and the present application does not limit this.

[0077] It can be understood that when the motor assembly 12 is in the shutdown state, that is, when the host 1 stops working and there is no external load, the external force on the host 1 is usually only the force when the user moves, and it will not cause much sliding of the host 1. Thus, through the limiting force provided by the damping member 16, or the limiting force provided when the first connector 15 and the second connector 131 are plugged together, or the combined action of the limiting force provided by the damping member 16 and the limiting force provided when the first connector 15 and the second connector 131 are plugged together, the battery pack 13 can be stably arranged in the battery compartment 111.

[0078] When the motor assembly 12 switches to the start state, the tool starts to move to trim the green plants, and the load increases, which will inevitably cause the host 1 to shake. Therefore, in order to avoid the battery pack 13 falling off and causing a power outage due to shaking when the motor assembly 12 starts and the host 1 is working, the host 1 may further include a locking structure. The locking structure includes a locked state and an unlocked state. When the motor assembly 12 switches to the start state, the locking structure switches to the locked state to lock the battery pack 13 located in the battery compartment 111. When the motor assembly 12 switches to the shutdown state, the locking structure switches to the unlocked state, and the battery pack 13 is detachably installed in the battery compartment 111. In this way, on the one hand, the battery pack 13 can be locked when the motor assembly 12 is working to prevent it from falling off. On the other hand, when the motor assembly 12 is shut down, the battery pack 13 is unlocked so that the battery pack 13 can be assembled in the battery compartment 111 in a normal scenario, and a corresponding force can be provided when the user needs to disassemble it.

[0079] For example, in the embodiment provided in the present application, the locking structure may include a first switch assembly 14. The first switch assembly 14 may include a first switch body 141 and a trigger button 142. The first switch body 141 is used to control the on / off of the motor assembly 12. As Figure 9As shown, the trigger button 142 may include a second limiting portion 1421, the battery pack 13 may include a first limiting portion 132, the housing 11 may include a first mating port 31112 communicating with the battery compartment 111, the trigger button 142 may be disposed in the first mating port 31112, and the first switch body 141 may be disposed in the housing 11. Based on this, when the user triggers the trigger button 142, the trigger button 142 may move toward the first switch body 141 along the first mating port 31112 to trigger the first switch body 141. At the same time, the second limiting portion 1421 may move toward the first limiting portion 132 until the first switch body 141 is triggered to cause the motor assembly 12 to switch to the starting state, and the second limiting portion 1421 and the first limiting portion 132 cooperate to limit the battery pack 13. Among them, in order to prevent the battery pack 13 from falling off during the operation of the host 1, the cooperation and limitation between the first limiting portion 132 and the second limiting portion 1421 should be maintained when the motor assembly 12 is in the starting state, so it is necessary to prevent the movement of the trigger button 142. Therefore, in this embodiment, the trigger button 142 may be disposed in the conventional gripping area of the user on the host 1, so that during the process of the user pressing the trigger button 142, the motor assembly 12 may be maintained in the starting state, and at the same time, the first limiting portion 132 and the second limiting portion 14_{21} may be maintained in the limiting state.

[0080] In the embodiment provided by the present application, as Figure 9 and Figure 10 shown, the first limiting portion 132 may include a buckle groove, and the second limiting portion 1421 may include a buckle. When the trigger button 142 is pressed, the buckle moves toward the buckle groove and when the motor assembly 12 switches to the starting state, the buckle is buckled in the buckle groove to realize the limitation of the battery pack 13. Alternatively, in other embodiments, the first limiting portion 132 may also include a protrusion, and the battery pack 13 is limited by the cooperation between the protrusion and the buckle. Compared with the technical solution in which the first limiting portion 132 is a protrusion, in the embodiment provided by the present application, the technical solution in which the first limiting portion 132 of the battery pack 13 is a buckle groove may reduce the occupied space of the battery pack 13, which is beneficial to the structural compactness of the host 1; in particular, when the battery pack 13 is used alone as a mobile power source, there is no extra protruding area on the battery pack 13, which is convenient for carrying and storing.

[0081] In the embodiments provided in the present application, the trigger button 142 includes a second limiting portion 1421 as an example for illustration. Actually, in other embodiments, the second limiting portion 1421 may also be other parts different from the trigger button 142, and the second limiting portion 1421 is connected to the trigger button 142. When the trigger button 142 moves, the second switch assembly is switched between the locked state and the unlocked state. Taking the locking structure as the first switch assembly 14, when the first switch assembly 14 is turned on, the motor assembly 12 is triggered and the battery pack 13 is locked synchronously, and when the first switch assembly 14 is turned off, the motor assembly 12 is turned off and the battery pack 13 is unlocked synchronously as an example for illustration. Actually, in other embodiments, the locking structure may also be other structures independent of the first switch assembly 14. For example, the locking structure may include a limiting rod, and the limiting rod is connected to the first switch assembly 14. When the first switch assembly 14 is switched to the on state, the limiting rod can be driven to move towards the battery pack 13 synchronously. When the first switch assembly 14 is triggered, the limiting rod abuts against the outer end surface of the battery pack 13 away from the first connector 15 of the host 1 for limiting, so as to prevent the first connector 15 from separating from the second connector 131 and prevent the battery pack 13 from falling off; or, in some other embodiments, the host 1 may further include a transmission assembly connected to the motor assembly 12, and the transmission assembly is connected to the locking structure. When the motor assembly 12 is triggered, part of the power output by the motor assembly 12 can be transmitted to the tool to drive the tool to move, and the other part of the power can be transmitted to the locking structure through the transmission assembly to drive the locking structure to move towards the locked state. When the motor assembly 12 is switched to the shutdown loading state, the locking structure can be automatically reset to the unlocked state. Of course, there may be other structural forms or cooperation methods for the locking structure, which will not be elaborated here one by one.

[0082] In each of the above embodiments, the battery compartment 111 may penetrate to the first end of the housing 11, and the battery pack 13 may be inserted into the battery compartment 111 from the first end, so that the first connector 15 and the second connector 131 are plugged, and the damping member 16 limits the side edge of the battery pack 13. In order to prevent the user from acting on the battery pack 13 to cause excessive movement towards the first connector 15, resulting in displacement or damage of the internal parts of the housing 11, the battery pack 13 may further include a flange 133. When the battery pack 13 is inserted into the battery compartment 111 through the first end and is installed in place, the flange 133 can abut against the first end of the housing 11 to prompt the user that the current battery pack 13 is installed in place and prevent the user from causing damage due to excessive installation of the battery pack 13.

[0083] Due to the insertion of the first connector 15 and the second connector 131 and the limiting effect of the damping member 16, a user needs to apply a certain force to the battery pack 13 to remove the battery pack 13. Therefore, for the convenience of the user to remove the battery pack 13, the housing 11 may further include an avoidance notch 113 at the first end. One end of the battery pack 13 facing away from the second connector 131 can be exposed through the avoidance notch 113, that is, a part of the battery pack 13 close to the first end can be exposed through the avoidance notch 113, facilitating the user to apply the force to the exposed part of the battery pack 13 to achieve removal.

[0084] In the above embodiment, the main body 1 of the electric grass shear 100 is described in detail. Below, the electric grass shear 100 will be described in combination with the main body 1, the base 3 and the push rod 2.

[0085] As Figure 11 shown, the base 3 can be assembled with the main body 1 to limit the main body 1. The push rod 2 may include a second switch assembly (not shown), and the second switch assembly can be used to control the start and stop of the motor assembly 12. It can be understood that in the foregoing embodiment, when the push rod 2 and the base 3 are not installed on the electric grass shear 100, the user can directly hold the main body 1 for trimming, and at this time, the start and stop of the motor assembly 12 can be controlled by the first switch assembly 14. When the push rod 2 and the base 3 are installed on the electric grass shear 100, the user mainly controls the electric grass shear 100 to perform trimming work by holding the push rod 2. Therefore, to avoid accidental touch, when the push rod 2 is assembled to the base 3, the first switch assembly 14 can be kept off. At this time, the second switch assembly can be used to start or stop the motor assembly 12, that is, the start and stop of the electric grass shear 100 can be controlled by the second switch assembly. When both the push rod 2 and the base 3 are disassembled, the motor assembly 12 can be started or stopped by the first switch assembly 14. Based on this, when the electric grass shear 100 changes from the holding mode to the pushing mode, it is possible to avoid accidental touch of the first switch assembly 14 to start the motor assembly 12, causing a safety risk.

[0086] Among them, in the state where the push rod 2 is assembled to the base 3 and the base 3 is assembled with the main body 1, the first switch assembly 14 can be maintained in the off state through circuit control, and the second switch assembly can start or stop the motor assembly 12; alternatively, in other embodiments, such as the embodiment provided in the present application, when the main body 1 is assembled to the base 3, the trigger button 142 of the first switch assembly 14 can be locked by the base 3, restricting the movement of the trigger button 142 along the first mating port 31112 toward the first switch body 141, so that the first switch assembly 14 can be maintained in the off state in terms of mechanical structure.

[0087] Specifically, the base 3 may include a second mating port, and the trigger button 142 may include a recessed groove 1422. When the host 1 and the base 3 are assembled, the trigger button 142 may pass through the second mating port and be disposed within the second mating port. At this time, the recessed groove 1422 of the trigger button 142 may face the edge of the second mating port. Subsequently, the base 3 and the host 1 can be pushed to slide relative to each other, such that the edge of the second mating port extends into the recessed groove 1422. In this way, due to the limiting effect of the edge of the second mating port, even if an external force acts on the trigger button 142, the trigger button 142 cannot be pressed, thereby achieving the locking of the trigger button 142. Among them, the surface of the base 3 facing the host 1 may be flat, and the host 1 can be assembled on the surface of the base 3; in another embodiment, the base 3 may include a mating cavity 32, the mating cavity 32 communicates with the second mating port, the host 1 can be assembled within the mating cavity 32, and the host 1 can slide relative to the mating cavity 32, such that the edge of the second mating port extends into the recessed groove 1422 of the trigger button 142 to lock the trigger button 142. In this embodiment, since the trigger button 142 cannot be pressed, the battery pack 13 cannot be limited by the second limiting portion 1421 on the trigger button 142. Especially when the battery compartment 111 of the housing 11 penetrates to the first end of the housing 11, when the electric grass shear 100 is in the working process, the battery pack 13 is likely to fall off. Therefore, in order to solve this technical problem in the embodiment of the present application, when the edge of the second mating port extends into the recessed groove 1422 of the trigger button 142, the inner wall of the mating cavity 32 can abut against the surface of the battery pack 13 disposed near the first end of the housing 11, so that the battery pack 13 can be limited by the base 3, avoiding sudden power-off of the motor and stopping of the work during the working process.

[0088] In this embodiment, it is necessary to push the main body 1 and the base 3 to move relative to each other so that the edge of the second mating port locks the trigger button 142. Therefore, in order to prevent the relative movement of the main body 1 and the base 3 due to vibration during the operation of the electric grass shear 100, which may cause the edge of the second mating port to fall off from the recessed groove 1422 of the trigger button 142, one of the housing 11 of the main body 1 and the base 3 may include a first engaging portion, and the other may include a second engaging portion. When the trigger button 142 is locked, the first engaging portion and the second engaging portion are engaged with each other to limit the relative movement between the main body 1 and the base 3 and ensure safety performance. Among them, the first engaging portion and the second engaging portion can be engaged when the edge of the second mating port extends into the recessed groove 1422 of the trigger button 142, without the need for additional user operation to achieve the engagement and fixation of the main body and the base 3; in other embodiments, after the edge of the second mating port extends into the recessed groove 1422 of the trigger button 142, the user can also achieve the engaging fit of the first engaging portion and the second engaging portion, and the present application does not limit this. Among them, the first engaging portion may include a card slot, and the second engaging portion may include a hook. Of course, the first engaging portion and the second engaging portion can also adopt other engaging forms, and the present application does not limit this.

[0089] The above takes the example of locking the first switch assembly 14 through a mechanical structure to keep it in the off state. Of course, in some other embodiments, the first switch assembly 14 can be kept in the off state through circuit control, and at the same time, the first switch assembly 14 can be locked through a mechanical structure to prevent the first switch assembly 14 from conducting, so as to achieve double-layer insurance and further improve safety performance.

[0090] It should be noted that in the embodiments provided in the present application, the electric grass shear 100 includes a push rod 2 and a base 3 as examples. In other embodiments, the electric grass shear 100 may also only include the main body 1 part, and the user can trim green plants by holding the main body 1. In the embodiments provided in the present application, the electric tool is taken as the electric grass shear 100 as an example. In fact, in other embodiments, the electric tool may also include an electric screwdriver, an electric drilling machine, an electric toy, etc., and the present application does not limit this.

[0091] In the above embodiments, the battery pack 13 may further include a third connector (not shown) and a fourth connector (not shown). The third connector can be used to conduct with an external power source to charge the battery pack 13, and the fourth connector is used to connect to a mobile terminal to charge the mobile terminal. Based on this, the versatility of the battery pack 13 can be realized, so that it can be set in the electric tool to supply power to the motor assembly 12, and can also be independent of the electric tool as a mobile power source to charge the mobile terminal, which is beneficial to reducing the user's living cost and the standardization of the battery pack 13.

[0092] Other embodiments of the present application will be readily apparent to those skilled in the art upon consideration of the specification and practice of the disclosure herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include well-known knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only illustrative, and the true scope and spirit of the present application are pointed out by the following claims.

[0093] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. An electric tool, characterized in that, including a main body, the main body including: a housing, the housing including a battery compartment; a motor assembly disposed within the housing; a battery pack installed in the battery compartment, the battery pack configured to supply power to the motor assembly; a first switch assembly including a first switch body and a trigger button, the trigger button moving along a preset direction to trigger or disconnect the first switch body; a locking structure, the locking structure including a locked state and an unlocked state; wherein, when the motor assembly switches to the starting state, the locking structure switches to the locked state to lock the battery pack located in the battery compartment to prevent the battery pack in the battery compartment from falling off; when the motor assembly switches to the shutdown state, the locking structure switches to the unlocked state, and the battery pack is detachably installed in the battery compartment; the power tool further includes a base and a push rod, the base assembled with the main body; the push rod including a second switch assembly; wherein, when the push rod is assembled to the base, the first switch assembly remains disconnected, the second switch assembly is configured to start or stop the motor assembly, and when the push rod and the base are disassembled from the main body, the first switch assembly is configured to start or stop the motor assembly; the base includes a second mating port, the trigger button includes a recessed groove; when the main body is assembled with the base, the trigger button passes through the second mating port, the recessed groove faces the edge of the second mating port, and the main body and the base slide relative to each other, such that the edge of the second mating port extends into the recessed groove to lock the trigger button.

2. The power tool according to claim 1, wherein, the battery pack includes a first limiting portion, the first switch assembly includes a second limiting portion; wherein, when the first switch assembly is turned on to trigger the motor assembly, when the motor assembly switches to the starting state, the first limiting portion and the second limiting portion cooperate to lock the battery pack, when the first switch assembly is turned off to stop the motor assembly, when the motor assembly switches to the shutdown state, the first limiting portion and the second limiting portion are disengaged.

3. The electric tool according to claim 2, characterized in that, the battery pack is inserted into the battery compartment; the first limiting portion includes a buckle groove or a protrusion, the second limiting portion includes a buckle, and when the buckle is engaged with the buckle groove or the protrusion, the battery pack is limited in a direction opposite to the insertion direction of the battery pack.

4. The power tool according to claim 2, wherein the housing further includes a first mating port, the first mating port communicating with the battery compartment; the trigger button is disposed in the first mating port, the trigger button including the second limiting portion; wherein, the trigger button moves along the first mating port towards the first switch body, the second limiting portion moves towards the first limiting portion, until when the trigger button triggers the first switch body, the motor assembly switches to the starting state, and the second limiting portion and the first limiting portion cooperate to limit the battery pack.

5. The power tool according to claim 1, characterized in that, the main body further includes a first connector, the battery pack includes a second connector; the battery pack is inserted into the battery compartment, and the first connector is plugged into the second connector.

6. The electric tool according to claim 5, characterized in that One of the first connector and the second connector includes a contact hole, and the other includes a pin. When the battery pack is inserted into the battery compartment, the pin is inserted into the contact hole for electrical conduction.

7. The electric tool according to claim 1, characterized in that The battery pack further includes a third connector and a fourth connector. The third connector is used to conduct electricity with an external power source to charge the battery pack, and the fourth connector is used to connect to a mobile terminal to charge the mobile terminal.

Citation Information

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