Switch assembly, switch assembly starting method and electric tool

Abstract

The present invention provides a switch assembly, a switch assembly starting method, and an electric tool. The switch assembly includes a housing, a main switch accommodated in the housing, and a locking switch and a trigger switch installed on the housing. One end of the trigger switch is exposed outside the housing, and the other end is accommodated in the housing and contacts the main switch. One end of the locking switch is exposed outside the housing, and the other end contacts the trigger switch. The locking switch has a locking position and a release position. When the locking switch is in the locking position, the locking switch restricts the action of the trigger switch, the trigger switch is in a locked state, and the main switch cannot be started; when the locking switch is in the release position, the locking switch is located next to the trigger switch and the restriction is released, the trigger switch is in a released state, and the main switch can be started. Compared with the prior art, the switch assembly of the present invention is always in a locked state when not in use, and will not cause abnormal start-up due to unintentional pressing, and has a high safety factor.

Description

Technical Field

[0001] The invention relates to a switch component, a switch component starting method and an electric tool, belonging to the technical field of garden tools. Background Art

[0002] At present, power tools usually have a start switch on the handle that the user grasps. However, when using a power tool, the user may accidentally press the start switch when the user only needs to hold the tool instead of using it, causing the power tool to start under abnormal circumstances, thereby leading to a dangerous situation. For this reason, a safety switch needs to be set in the conventional switch assembly to prevent the switch assembly from accidentally starting when the user does not need the tool to work.

[0003] Conventional start switches are located below the handle and face downward. When using a power tool, the user starts the tool by pressing the start switch upward while holding the handle. Existing safety switches are primarily linkage-type, meaning that to activate the start switch, the user must first press, pry, or rotate the safety switch. This releases the safety switch's lock on the start switch, allowing the user to activate the tool. Switch assemblies designed based on the aforementioned technology are widely used in the power tool field, with grip-type switch assemblies being the most common. The safety switch of such switch assemblies is located above and opposite the start switch on the handle and faces upward. When in use, the user simply grasps the tool handle to press the safety switch and then the start switch. Therefore, such grip-type switches have a simple structure and are easy to use, making them widely used in the power tool field.

[0004] However, the above-mentioned grip-type switch assembly has the defect of not being able to significantly distinguish between the action of activating the safety switch and the action of actuating the start switch when in use, and thus the start switch may be mistakenly actuated, resulting in a dangerous situation. Under the new tool safety regulations, the potential unsafe factors of this type of grip-type switch assembly limit its future application in tools.

[0005] In view of this, it is indeed necessary to propose improvements to the existing safety switches to solve the above problems. Summary of the Invention

[0006] An object of the present invention is to provide a switch assembly which is in a locked state when not in use and will not be abnormally activated due to being accidentally pressed.

[0007] To achieve the above-mentioned objectives, the present invention provides a switch assembly, comprising a housing, a main switch accommodated in the housing, and a locking switch and a trigger switch mounted on the housing, wherein one end of the trigger switch is exposed outside the housing, and the other end is accommodated in the housing and contacts the main switch; one end of the locking switch is exposed outside the housing, and the other end contacts the trigger switch; the locking switch has a locking position and a releasing position; when the locking switch is in the locking position, the locking switch is arranged opposite to the trigger switch and restricts the action of the trigger switch, the trigger switch is in a locked state, and the main switch cannot be started; when the locking switch is in the releasing position, the locking switch is located beside the trigger switch and releases the restriction, the trigger switch is in a released state, and the main switch can be started.

[0008] As a further improvement of the present invention, the trigger switch includes a contact portion that contacts the main switch and a grip portion exposed outside the shell, and the locking switch includes a pressing portion exposed outside the shell and a buttress in contact with the trigger switch. When the locking switch is in the locked position, the buttress abuts against the inner side wall of the grip portion; when the locking switch is in the released position, the buttress deviates to the side of the grip portion and releases the buttress. After operating the grip portion, the contact portion triggers the main switch, causing the main switch to start.

[0009] As a further improvement of the present invention, a receiving cavity is provided in the gripping portion, and in the locked state, the abutting top portion contacts the top wall of the gripping portion; in the released state, the abutting top portion is located above the receiving cavity.

[0010] As a further improvement of the present invention, the locking switch also includes a rotating part connecting the pressing part and the abutting top part, the rotating part is installed on the shell and can be offset and rotated relative to the shell, and when the pressing part is pressed, the abutting top part rotates synchronously.

[0011] As a further improvement of the present invention, a first elastic member and a second elastic member for driving the locking switch to reset are further provided in the shell, one end of the first elastic member abuts against the inner wall of the shell, and the other end abuts against the rotating part. When the locking switch is offset relative to the shell, the first elastic member is deformed and the abutting top moves to the receiving cavity; the second elastic member is sleeved on the rotating part, and one end abuts against the inner wall of the shell, and the other end is fixed to the pressing part. When the pressing part is pressed, the second elastic member is deformed, the abutting top enters the receiving cavity and rotates synchronously in the receiving cavity.

[0012] As a further improvement of the present invention, the first elastic member and the second elastic member are respectively arranged on both sides of the rotating part, and both sides of the rotating part are provided with limiting blocks for limiting and fixing the first elastic member and the second elastic member. A fixing block is formed on the pressing part, and the fixing block is arranged in an inverted L shape to form a fixing cavity between the fixing block and the pressing part, and the other end of the second elastic member is limited and accommodated in the fixing cavity.

[0013] As a further improvement of the present invention, the trigger switch also includes a connecting portion connecting the contact portion and the grip portion, and the connecting portion is mounted on the shell and can rotate relative to the shell, so that when the grip portion is operated, the contact portion is synchronously driven to trigger the main switch, thereby starting the main switch.

[0014] As a further improvement of the present invention, the main control switch is press-type and includes a main body and a telescopic arm connected to the main body. The contact portion of the trigger switch is located above the telescopic arm to activate the main control switch when the contact portion presses the telescopic arm downward.

[0015] The object of the present invention is to provide a method for activating a switch assembly, so that the switch assembly cannot be activated when not in use, and will not be abnormally activated due to being accidentally pressed.

[0016] To achieve the above object, the present invention provides a method for starting the aforementioned switch assembly, the method mainly comprising the following steps:

[0017] S1. Move the lock switch to one side, causing the lock switch to deviate relative to the housing. The lock switch moves from a position relative to the trigger switch to a side position, releasing the restriction between the lock switch and the trigger switch. The lock switch is in a released position.

[0018] S2, operate the locking switch to rotate the locking switch relative to the housing;

[0019] S3. Operate the first end of the trigger switch to rotate the trigger switch relative to the housing until the second end of the trigger switch triggers the main switch, and the main switch is started.

[0020] An object of the present invention is to provide an electric tool, wherein a switch assembly of the electric tool is in a locked state when not in use and will not be abnormally started due to being accidentally pressed.

[0021] To achieve the above-mentioned objectives, the present invention provides an electric tool, comprising the aforementioned switch assembly to control the start or stop of the motor.

[0022] The beneficial effects of the present invention are as follows: when not in use, the trigger switch and the locking switch abut against each other to keep the locking switch in the locked position and the trigger switch in the locked state, and the main switch cannot be started at this time; during normal start-up, the locking switch is first offset to one side until the locking switch and the trigger switch are released from abutment, and then the main switch can be started by pressing the locking switch and the trigger switch respectively; compared with the prior art, the present invention is not only simple in structure and easy to operate, but also the switch assembly is always in the locked state when not in use, and will not be abnormally started due to inadvertent pressing, and the safety factor is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of some electric tools using the switch assembly of the present invention.

[0024] Figure 2 It is a three-dimensional diagram of the switch assembly of the present invention.

[0025] Figure 3 yes Figure 2 Exploded view of the switch assembly shown.

[0026] Figure 4 yes Figure 3 Exploded view of the middle casing.

[0027] Figure 5 yes Figure 4 An enlarged view of the first insertion position in FIG.

[0028] Figure 6 yes Figure 3 Another exploded view of the middle shell.

[0029] Figure 7 yes Figure 3 A perspective view of the trigger switch.

[0030] Figure 8 yes Figure 3 A perspective view of the locking switch.

[0031] Figure 9 yes Figure 8 Another perspective view of the locking switch shown.

[0032] Figure 10 This is a combined structural diagram of the lock switch, trigger switch, and main control switch working together in the locked state.

[0033] Figure 11 This is a diagram of the combined structure of the lock switch, trigger switch, and main control switch when they work together in the released state.

[0034] Figure 12 It is a flow chart of the switch assembly starting method of the present invention. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The present invention discloses an electric tool, which can be Figure 1 The power tools shown, such as the pruner, electric saw, hair dryer, chain saw or lawn mower, may also be other types of handheld power tools, which are not limited here.

[0037] Figure 1 These power tools can all be operated using the switch assembly 10 of the present invention. The switch assembly 10 is designed as a grippable handle for easy user operation. Due to the wide variety of applicable power tools, the specific structure of the power tools is not limited here. The following description will focus on the specific structure of the switch assembly 10 and its activation method.

[0038] like Figure 2 and Figure 3 As shown, the switch assembly 10 includes a housing 11, a main switch 12 housed in the housing 11, and a locking switch 13 and a trigger switch 14 mounted on the housing 11. One end of the locking switch 13 is exposed outside the housing 11, and the other end contacts (abuts) the trigger switch 14. One end of the trigger switch 14 is also exposed outside the housing 11, and the other end is housed in the housing 11 and contacts the main switch 12. Preferably, in the present application, the locking switch 13 and the trigger switch 14 are both push-type triggers, primarily used to cooperate with each other to trigger the main switch 12, thereby activating the main switch 12 and subsequently controlling the start or shut down of a motor (not shown).

[0039] like Figures 4 to 6 and combined Figure 2 and Figure 3 As shown, the housing 11 includes a first housing 111 and a second housing 112 that are assembled and fixed to each other in the left-right direction. The main switch 12 is housed within a receiving space (not numbered) formed by the first housing 111 and the second housing 112. Preferably, a fixing portion 113 is provided on the inner sidewall of the second housing 112. A receiving groove 114 is defined within the fixing portion 113 and communicates with the receiving space. The main switch 12 is retained within the receiving groove 114. In this embodiment, the first housing 111 and the second housing 112 are fixed to each other using bolts and nuts, but this is not intended to be limiting.

[0040] The inner sidewall of the first housing 111 is provided with a first insertion member 115 and a retaining member 116 disposed around the first insertion member 115. The first insertion member 115 is disposed near the top of the first housing 111 and is used to mount the locking switch 13. The retaining member 116 is spaced apart from the first insertion member 115 to form a retaining cavity 117 between the first insertion member 115 and the retaining member 116. The inner sidewall of the second housing 112 is provided with a second insertion member 118, disposed near the middle of the second housing 112 and used to mount the trigger switch 14. In this application, both the first insertion member 115 and the second insertion member 118 are cylindrical.

[0041] After the first shell 111 and the second shell 112 are assembled, a handle 110 is formed. The locking switch 13 is located at the top of the handle 110 and partially protrudes from the handle 110. The trigger switch 14 is located at the bottom of the handle 110 and partially protrudes from the handle 110. With this design, when starting the switch assembly 10, the main switch 12 can be started by directly holding the handle 110, pressing the locking switch 13 downward and pressing the trigger switch 14 upward with the index finger, which is easy to operate.

[0042] like Figure 3 As shown, the main switch 12 is a push-type switch and includes a main body 121 and a telescopic arm 122 connected to the main body 121. The telescopic arm 122 is elastically configured so that it can reset itself after being released. In this application, the main switch 12 is a micro switch, and one end of the trigger switch 14 is located above the telescopic arm 122. The trigger switch 14 is used to trigger (press) the telescopic arm 122 to activate the main switch 12.

[0043] like Figure 7 and combined Figure 3 and Figure 6 As shown, the trigger switch 14 includes a contact portion 141 that contacts the telescopic arm 122 of the main switch 12, a grip portion 142 exposed below the housing 11, and a connecting portion 143 connecting the contact portion 141 and the grip portion 142. The grip portion 142 is located at the first end 140 of the trigger switch 14, and the contact portion 141 is located at the second end 140' of the trigger switch 14. The connecting portion 143 is mounted on the second insertion member 118 of the second housing 112, allowing it to rotate relative to the housing 11. Therefore, when the grip portion 142 is gripped, it can simultaneously drive the contact portion 141 to press downward on the telescopic arm 122 of the main switch 12, thereby activating the main switch 12.

[0044] The contact portion 141 is located above the telescopic arm 122 and is relatively thin. The lower surface of the contact portion 141 is generally flat. Therefore, when the grip portion 142 is tightened, the contact portion 141 is simultaneously driven downward to trigger the telescopic arm 122 of the main switch 12, thereby stably activating the main switch 12. The connecting portion 143 is roughly semicircular in shape to facilitate rotation within the housing 11. The connecting portion 143 is provided with a through-hole 144 for the second insertion member 118 to pass through. Both the second insertion member 118 and the through-hole 144 are circular in shape, and the diameter of the through-hole 144 is larger than that of the second insertion member 118, facilitating rotation of the trigger switch 14 around the second insertion member 118. Because the grip portion 142 protrudes from the housing 11, the grip portion 142 is relatively thick to facilitate gripping by the operator.

[0045] The grip portion 142 of the trigger switch 14 defines a receiving cavity 145, which connects the connecting portion 143 with the grip portion 142. The arrangement of the receiving cavity 145 forms a first side wall 146 and a second side wall 147 on the trigger switch 14, with the receiving cavity 145 located between the first side wall 146 and the second side wall 147. In other words, the receiving cavity 145 is formed as a depression extending downward from the center of the top of the trigger switch 14.

[0046] like Figure 8 and Figure 9 and combined Figures 3 to 5 As shown, the locking switch 13 includes a pressing portion 131 exposed above the shell 11, an abutting top portion 132 in contact with (abutting against) the trigger switch 14, and a rotating portion 133 connecting the pressing portion 131 and the abutting top portion 132. The rotating portion 133 is installed on the first through-plug 115 of the first shell 111, so that the rotating portion 133 can be offset and rotated relative to the shell 11, so that when the pressing portion 131 is pressed, the abutting top portion 132 can be driven to rotate synchronously.

[0047] The pressing portion 131 has a T-shaped structure, comprising a flat, horizontally extending pressing plate 1311 and an extension plate 1312 extending vertically downward from the center of the bottom of the pressing plate 1311. The pressing plate 1311 is exposed outside the housing 11 for manual pressing by an operator. Initially, the extension plate 1312 is partially exposed outside the housing 11. After the operator manually presses the pressing plate 1311, the extension plate 1312 retracts into the housing 11. A fixing block 1313 is formed at the bottom of the extension plate 1312. The fixing block 1313 is arranged in an inverted L shape, forming a fixing cavity 1314 between the fixing block 1313 and the pressing portion 131.

[0048] The abutting portion 132 extends vertically and is used to abut the trigger switch 14 in the vertical direction. The rotating portion 133 and the abutting portion 132 are both housed within the housing 11. The rotating portion 133 defines a through hole 1331 for the first insertion member 115 to pass through. Both the first insertion member 115 and the through hole 1331 are circular, and the diameter of the through hole 1331 is larger than that of the first insertion member 115 to facilitate rotation of the locking switch 13 around the first insertion member 115.

[0049] A stopper 1332 is provided on both sides of the rotating portion 133. The number of the stopper 1332 can be one, two, or more. Preferably, two stoppers 1332 are provided on each side of the rotating portion 133. A cylindrical sleeve 1333 is also provided on the rotating portion 133. The through hole 1331 extends through the sleeve 1333. The sleeve 1333 and the fixed block 1313 are located on the same side of the locking switch 13.

[0050] The housing 11 also includes a first elastic member 15 and a second elastic member 16. The first elastic member 15 and the second elastic member 16 are disposed on either side of the rotating portion 133 and are used to reset the locking switch 13 when the locking switch 13 deviates or rotates. Specifically, the first elastic member 15 is installed horizontally, with one end passing through the first insertion member 115 and being contained within a limiting cavity 117 between the first insertion member 115 and the limiting member 116, thereby abutting against the inner wall of the first housing 111. The other end of the first elastic member 15 is limited by a limiting block 1332 on the rotating portion 133, thereby abutting against the rotating portion 133. The second elastic member 16 is horizontally sleeved on the sleeve 1333 and limited by the limiting block 1332 on the same side. One end of the second elastic member 16 in the vertical direction abuts against the inner wall of the second housing 112, while the other end in the vertical direction is contained within the fixing cavity 1314.

[0051] By providing a fixing block 1313, a limiting block 1332, and a sleeve 1333 on the locking switch 13, the first elastic member 15 and the second elastic member 16 can be fixed in a limited position, allowing the first elastic member 15 and the second elastic member 16 to better exert their elastic function. In this embodiment, the first elastic member 15 is a compression spring and the second elastic member 16 is a torsion spring, which are primarily used to reset the locking switch 13; of course, other components that can also achieve the reset function can also be used to replace the first elastic member 15 and the second elastic member 16, and this is not limited here.

[0052] In the present application, the locking switch 13 has a locking position and a release position. When the locking switch 13 is in the locking position, the locking switch 13 is arranged opposite to the trigger switch 14 and limits the action of the trigger switch 14. The trigger switch 14 is in a locked state, the main switch 12 cannot be started, and then the motor cannot rotate, and the power tool cannot work normally; when the locking switch 13 is in the release position, the locking switch 13 is located next to the trigger switch 14 and the restriction relationship between the two is released. The trigger switch 14 is in a released state, and the main switch 12 can be started. If the trigger switch 14 is pressed at this time, the main switch 12 starts, the motor starts to rotate, and the power tool starts to work normally.

[0053] Specifically, if Figure 10 and Figure 11 As shown, when the locking switch 13 is in the locked position, the abutting top portion 132 abuts against the top of the second side wall 147 of the gripping portion 142. At this time, not only can the pressing portion 131 of the locking switch 13 not be pressed downward, but the gripping portion 142 of the trigger switch 14 cannot be gripped upward. The locking switch 13 and the trigger switch 14 are in a mutually locked and restricted state. For details, please refer to Figure 10 When the locking switch 13 is in the released position, the abutting portion 132 is offset to the side of the grip portion 142 and the locking switch 13 and the trigger switch 14 are released from abutment, and the trigger switch 14 is in a released state. At this time, if the grip portion 142 is held tightly, the telescopic arm 122 of the main switch 12 can be pressed downward through the contact portion 141 to activate the main switch 12. For details, please refer to Figure 11 .

[0054] It should be noted that when the locking switch 13 is switched from the locked position to the released position, the abutting portion 132 only needs to be offset a certain distance toward the receiving cavity 145 until the abutting portion 132 is located above the receiving cavity 145. At this time, the locked state between the locking switch 13 and the trigger switch 14 is immediately released, the locking switch 13 is in the released position, and the trigger switch 14 is in the released state. With respect to the first elastic member 15 and the second elastic member 16, when the locking switch 13 is offset toward the receiving cavity 145 (i.e., offset relative to the housing 11), the first elastic member 15 is compressed and deformed, and the abutting portion 132 moves above the receiving cavity 145. When the pressing portion 131 is pressed, the second elastic member 16 is forced to expand and deform, and the abutting portion 132 enters the receiving cavity 145 and rotates synchronously therein.

[0055] like Figure 12 As shown, the starting method of the switch assembly 10 mainly includes the following steps:

[0056] S1. Move the locking switch 13 to one side, so that the locking switch 13 is offset relative to the housing 11. The locking switch 13 moves from the relative position of the trigger switch 14 to the side position, releasing the restriction between the locking switch 13 and the trigger switch 14. The locking switch 13 is in the release position.

[0057] S2. Operate (i.e., press downward) the lock switch 13 to rotate the lock switch 13 relative to the housing 11;

[0058] S3. Operate (i.e., press upward) the grip portion 142 (i.e., the first end 140) of the trigger switch 14 to rotate the trigger switch 14 relative to the housing 11 until the contact portion 141 (i.e., the second end 140') of the trigger switch 14 triggers the main switch 12, and the main switch 12 is activated.

[0059] Specifically: Figure 10 In the locked state (i.e., the initial state), the trigger switch 14 is positioned horizontally, and the abutting portion 132 of the locking switch 13 vertically abuts against the top of the second side wall 147 of the gripping portion 142. At this point, the pressing portion 131 of the locking switch 13 cannot be pressed downward, and the gripping portion 142 of the trigger switch 14 cannot be gripped upward. The locking switch 13 and the trigger switch 14 are mutually locked, and the main switch 12 cannot be activated. In this state, even if the locking switch 13 and / or the trigger switch 14 are accidentally touched, the main switch 12 cannot be activated, and the power tool remains in an inactive state.

[0060] When the power tool needs to be used, first, the locking switch 13 is moved a certain distance toward the left side (close to the receiving cavity 145), so that the top portion 132 of the locking switch 13 is just above the receiving cavity 145. At this time, the first elastic member 15 is compressed and deformed; then, the pressing portion 131 of the locking switch 13 is pressed downward, and the top portion 132 enters the receiving cavity 145 and rotates synchronously in the receiving cavity 145. The second elastic member 16 is forced to open and deform under the action of the fixing block 1313; finally, the gripping portion 142 is pressed upward (gripped) to rotate the trigger switch 14 as a whole relative to the housing 11 until the contact portion 141 presses the telescopic arm 122 downward, so that the main control switch 12 is activated (such as Figure 11 ), then the motor starts to rotate and the power tool starts to work normally.

[0061] After use, the locking switch 13 and the trigger switch 14 are released at the same time, and the trigger switch 14 will return to its initial state under the restoring force of the telescopic arm 122; at the same time, under the elastic force of the second elastic member 16, the locking switch 13 rotates in the opposite direction as a whole until the abutting top 132 is again located above the receiving cavity 145, and then under the elastic force of the first elastic member 15, the locking switch 13 is offset to the right side (away from the receiving cavity 145) as a whole until the abutting top 132 again abuts against the top of the second side wall 147 of the trigger switch 14, and at this time the locking switch 13 and the trigger switch 14 are again in a mutually locked state.

[0062] In summary, when the switch assembly 10 of the present invention is not in use, the trigger switch 14 and the lock switch 13 can be abutted against each other to position the lock switch 13 in the locked position and lock the trigger switch 14. At this time, the main switch 12 cannot be activated and the power tool remains in the non-use state. During normal activation, the lock switch 13 is first offset to one side until the lock switch 13 and the trigger switch 14 are no longer abutted against each other. At this time, pressing the lock switch 13 and the trigger switch 14 respectively can activate the main switch 12 and enable the power tool to operate normally. Compared with the prior art, the present invention is not only simple in structure and easy to operate, but also the switch assembly 10 is always locked when not in use, and will not be abnormally activated due to inadvertent pressing, thus having a higher safety factor.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A switch assembly comprising a housing, a main switch housed within the housing, and a locking switch and a trigger switch mounted on the housing, wherein one end of the trigger switch is exposed outside the housing and the other end is housed within the housing and contacts the main switch, characterized in that: One end of the locking switch is exposed outside the housing, and the other end is in contact with the trigger switch. The locking switch has a locking position and a releasing position. When the locking switch is in the locking position, the locking switch is arranged opposite to the trigger switch and restricts the action of the trigger switch. The trigger switch is in a locked state, and the main control switch cannot be activated. When the locking switch is in the release position, the locking switch is located beside the trigger switch and the restriction is released, the trigger switch is in the released state, and the main control switch can be started; The trigger switch includes a contact portion that contacts the main control switch and a grip portion exposed outside the shell, and a receiving cavity is provided in the grip portion. The locking switch includes a pressing portion exposed outside the shell and a resisting top portion that contacts the trigger switch. The shell is also provided with a first elastic member and a second elastic member for driving the locking switch to reset. In the released state, the first elastic member is deformed and the resisting top portion moves to the receiving cavity; when the pressing portion is pressed, the second elastic member is deformed, the resisting top portion enters the receiving cavity and rotates synchronously in the receiving cavity.

2. The switch assembly according to claim 1, wherein: When the locking switch is in the locking position, the abutting top portion abuts against the inner side wall of the gripping portion; When the locking switch is in the release position, the abutting portion is offset to the side of the gripping portion and the abutting portion is released. After the gripping portion is operated, the contact portion triggers the main control switch to start the main control switch.

3. The switch assembly according to claim 2, wherein: In a locked state, the abutting top portion contacts the top wall of the gripping portion; in a released state, the abutting top portion is located above the receiving cavity.

4. The switch assembly according to claim 3, wherein: The locking switch further comprises a rotating portion connecting the pressing portion and the abutting top portion. The rotating portion is mounted on the housing and can be offset and rotated relative to the housing. When the pressing portion is pressed, the abutting top portion rotates synchronously.

5. The switch assembly according to claim 4, characterized in that: One end of the first elastic member abuts against the inner wall of the shell, and the other end abuts against the rotating part. A sleeve is provided on the rotating part. The second elastic member is horizontally sleeved on the sleeve, and one end abuts against the inner wall of the shell, and the other end is fixed to the pressing part.

6. The switch assembly according to claim 5, characterized in that: The first elastic member and the second elastic member are respectively arranged on both sides of the rotating part, and a limiting block for limiting and fixing the first elastic member and the second elastic member is provided on both sides of the rotating part. A fixing block is formed on the pressing part, and the fixing block is arranged in an inverted L shape to form a fixing cavity between the fixing block and the pressing part, and the other end of the second elastic member is limited and accommodated in the fixing cavity.

7. The switch assembly according to claim 2, wherein: The trigger switch also includes a connecting portion connecting the contact portion and the grip portion. The connecting portion is mounted on the housing and can rotate relative to the housing so that when the grip portion is operated, the contact portion is synchronously driven to trigger the main switch, thereby activating the main switch.

8. The switch assembly according to claim 7, wherein: The main control switch is push-type and includes a main body and a telescopic arm connected to the main body. The contact portion of the trigger switch is located above the telescopic arm to activate the main control switch when the contact portion presses the telescopic arm downward.

9. A method for starting the switch assembly according to any one of claims 1 to 8, characterized in that: The method mainly comprises the following steps: S1. Move the lock switch to one side, causing the lock switch to deviate relative to the housing. The lock switch moves from a position relative to the trigger switch to a side position, releasing the restriction between the lock switch and the trigger switch. The lock switch is in a released position. S2, operate the locking switch to rotate the locking switch relative to the housing; S3. Operate the first end of the trigger switch to rotate the trigger switch relative to the housing until the second end of the trigger switch triggers the main switch, and the main switch is started.

10. An electric tool comprising the switch assembly according to any one of claims 1 to 8, for controlling the start or stop of a motor.

Images