Switch assembly and power tool

Abstract

The utility model discloses a switch subassembly and electric tool, switch subassembly includes switch seat, trigger subassembly, locking subassembly, first drive part and second drive part, switch seat is located in the casing, and is used for the installation of switch unit, trigger subassembly is set up movably to switch seat, to be able to be close to switch seat, and trigger switch unit to make it close, locking subassembly is movably arranged in trigger subassembly, to be able to move to locking fixed with switch seat when trigger subassembly triggers switch unit to close, and move to unlock and separate with switch seat, first drive part includes first elastic part, second drive part includes at least two second elastic parts, and second elastic part and first elastic part are configured as the general spare of same specification, wherein, when locking subassembly and switch seat unlock and separate, first drive part drives locking subassembly and moves to reset, and second drive part drives trigger subassembly and moves away from switch seat, so can realize the generalization of elastic part in switch subassembly.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to a switch assembly and a power tool. Background Technology

[0002] Handheld power tools, such as angle grinders and grooving machines, are typically equipped with a power switch button to control the motor's start and stop. To improve user convenience, a self-locking switch assembly is usually included. This means that a switch lever and a locking button are located on the handle. When the user holds the handle, pressing the switch lever turns on the power and starts the motor; moving the locking button locks the switch lever in the on position. Pressing the switch lever again causes the locking button to reset under spring pressure. At this point, the user can release the force applied to the switch lever, and the switch lever will also reset to the off position under spring pressure. In actual products, because the required force for the switch lever differs from that of the locking button, the reset spring used on the switch lever is different from that used on the locking button, making it impossible to achieve a universal reset elastic element. Utility Model Content

[0003] The main purpose of this utility model is to propose a switch assembly and power tool, which aims to solve the problem that the anti-locking switch in existing power tools cannot achieve universal elasticity.

[0004] To achieve the above objectives, this utility model proposes a switching assembly for use in power tools. The power tool includes a housing, a motor assembly disposed within the housing, and a switching unit. The switching assembly includes:

[0005] A switch holder is disposed inside the housing and is used for mounting the switch unit;

[0006] A triggering component is movably disposed relative to the switch base so as to be able to approach the switch base and trigger the switch unit to close it;

[0007] A locking component is movably disposed on the triggering component so that it can be moved to lock and fix with the switch base when the triggering component triggers the closing of the switch unit, and can be moved to unlock and disengage from the switch base.

[0008] The first driving part includes a first elastic member disposed between the locking component and the triggering component;

[0009] The second drive unit includes at least two second elastic members disposed between the trigger component and the switch base, wherein the second elastic members and the first elastic members are configured as common parts of the same specification.

[0010] Specifically, when the locking component is unlocked and disengaged from the switch base, the first driving unit drives the locking component to reset, and the second driving unit drives the triggering component to move away from the switch base.

[0011] Preferably, a slot is provided on the side surface of the switch holder facing the trigger component;

[0012] The switch assembly further includes a mounting base located between the switch base and the trigger assembly. The mounting base includes a base and a plug protruding from the base, the plug being movably inserted into the slot.

[0013] One end of each of the second elastic elements is disposed on the base, and the other end is connected to the switch base so that the base abuts against the trigger assembly, and the at least two second elastic elements are evenly distributed along the circumference of the plug post.

[0014] Preferably, the triggering assembly includes a trigger and a trigger rod disposed on the trigger. The trigger is for user operation and has a first end and a second end opposite to each other. The first end is rotatably connected to the switch base so that the second end can rotate to move closer to or away from the switch base. When the second end rotates closer to the switch base, the trigger rod can trigger the switch unit to close.

[0015] The second drive unit is disposed between the trigger and the switch base, and both ends of each second elastic member are respectively connected to the trigger and the switch base;

[0016] The locking assembly is movably disposed on the trigger and located near the second end, and the first elastic member is disposed between the locking assembly and the trigger.

[0017] Preferably, the switch base has a mounting side facing away from the trigger, the switch unit is located on the mounting side, and the switch base is provided with a socket;

[0018] The end of the trigger rod is movably inserted through the socket.

[0019] Preferably, the switch base is provided with a mating part;

[0020] The locking assembly includes a locking button and a latch on the locking button. The locking button is movably disposed on the trigger so that when the trigger rod triggers the closing of the switch unit, the locking button can move to fasten and fix its latch with the mating part.

[0021] Preferably, the locking button has a third end and a fourth end opposite to each other. The third end is rotatably connected to the trigger. The rotation axis of the third end is parallel to the rotation axis of the first end. When the trigger rod triggers the switch unit to close, the locking button can rotate to fasten and fix the buckle to the mating part.

[0022] The trigger is provided with a baffle, which is disposed opposite to the fourth end, and the first elastic element connects the baffle and the fourth end.

[0023] Preferably, the switch base is provided with a guide groove on the side facing the locking button, and the mating part is provided on the inner wall of the guide groove;

[0024] The locking button has a locking rod protruding from one side of the switch base. The locking rod has a locking end away from the locking button. The locking end is provided with the buckle. The locking button has a first position, a second position and a third position in its rotation stroke.

[0025] In the first position, the locking end abuts against and limits the periphery of the guide groove;

[0026] In the second position, the locking end is positioned directly opposite the opening of the guide groove, so that when the second end rotates, the locking end can be movably inserted into the guide groove.

[0027] When the second end is rotated to the point where the trigger rod triggers the switch unit to close, the locking end moves to the point where the buckle on it corresponds to the position of the mating part, and the locking button rotates to the third position so that the buckle and the mating part are fastened and fixed.

[0028] Preferably, the inner wall of the guide groove has an outwardly flared chamfer near the periphery of its opening.

[0029] Preferably, the trigger has an avoidance notch located near the second end;

[0030] The locking button is movably disposed on the trigger, and a portion thereof is exposed from the clearance notch for user operation.

[0031] This utility model also proposes an electric tool, including

[0032] A housing, having an opening communicating with its interior, and housing an assembly of motors and a switching unit; and...

[0033] The aforementioned switch assembly is located in the housing, and the trigger and locking button of the switch assembly are partially exposed from the opening for user operation. The switch assembly's switch socket is used for mounting the switch unit.

[0034] The technical solution provided by this utility model has at least the following advantages:

[0035] The present invention provides a switch assembly comprising a switch base, a trigger component, a locking component, a first drive unit, and a second drive unit. The switch unit of the power tool is mounted on the switch base. The trigger component is movably mounted relative to the switch base to trigger the switch unit to close, at which point the circuit is connected and the motor assembly is turned on. To ensure the switch unit remains normally closed during operation, the locking component moves to lock itself to the switch base when the trigger component triggers the switch unit to close. When the motor assembly needs to stop working, the locking component moves to unlock and disengage from the switch base. At this point, the external force applied to the trigger component and the locking component is removed, the first drive unit drives the locking component to reset, and the second drive unit drives the trigger component to move away from the switch base. Furthermore, in actual operation, the driving force required for the trigger component to reset is greater than that required for the locking component. Therefore, a first elastic element and at least two second elastic elements are provided. The second elastic elements and the first elastic elements are configured as universal parts of the same specification. This achieves the standardization of elastic elements, thereby reducing production costs, improving production efficiency, and ensuring production quality. Additionally, the number of second elastic elements can be adjusted to meet the driving force requirements for the trigger component to reset. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 A schematic diagram of the structure of an embodiment of an electric tool provided by this utility model;

[0038] Figure 2 for Figure 1 A structural schematic diagram of the power tool (with a concealed housing);

[0039] Figure 3 for Figure 2 An enlarged schematic diagram of part A of the power tool;

[0040] Figure 4 for Figure 1 A schematic diagram of the power tool's structure regarding the switch assembly;

[0041] Figure 5 for Figure 4 A cross-sectional view of the switching assembly along BB (in its initial state);

[0042] Figure 6 for Figure 4 A cross-sectional view of the switch assembly along BB (in the pressed state);

[0043] Figure 7 for Figure 4 A cross-sectional view of the switching assembly along BB (in the locked state).

[0044] Explanation of icon numbers:

[0045] 1000 Power tool; 100 Switch assembly; 1 Switch base; 1a Mounting side; 11 Slot; 12 Socket; 13 Mating part; 131 Slot; 14 Guide groove; 15 Chamfer; 2 Trigger assembly; 21 Trigger; 211 First end; 212 Second end; 213 Clearance notch; 22 Trigger rod; 23 Baffle; 3 Locking assembly; 31 Locking button; 311 Third end; 312 Fourth end; 32 Buckle; 321 Hook; 33 Locking rod; 331 Locking end; 4 First drive part; 41 First elastic element; 5 Second drive part; 51 Second elastic element; 6 Mounting base; 61 Base; 62 Plug post; 200 Housing; 201 Opening; 202 Outer shell; 300 Switch unit; 400 Grip handle.

[0046] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0049] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0050] Power tools are electrical devices widely used in construction, decoration, manufacturing, and repair; they are electrically driven, providing users with efficient and precise operating capabilities. In some embodiments, the power tool is configured as an angle grinder, which is an abrasive tool used for cutting and grinding, such as for cutting and grinding metal and stone; therefore, an angle grinder is also called a grinding machine or disc grinder. In other embodiments, the power tool is configured as a grooving machine, used for grooving walls and floors. For ease of understanding, the following detailed description uses an angle grinder as an example and is provided in conjunction with the accompanying drawings.

[0051] Power tools typically include a housing, a motor assembly housed within the housing, and a work head mounted on the housing and driven by the motor assembly. Power tools also usually have a power switch button used to control the start and stop of the motor. To improve user convenience, a self-locking switch structure is often included. When the motor assembly is operating, the self-locking switch structure switches to a locked state, keeping the power switch button normally closed; when the motor assembly stops operating, the self-locking switch structure switches to an unlocked state, turning the power switch button off. However, in existing technologies, the elastic element of the self-locking switch structure cannot be standardized, causing inconvenience in production.

[0052] To address the aforementioned issues, this application improves the switch assembly 100. The switch assembly 100 will be described below in conjunction with the accompanying drawings.

[0053] Please see Figures 1 to 4The switch assembly 100 includes a switch base 1, a trigger assembly 2, a locking assembly 3, a first drive unit 4, and a second drive unit 5. The switch base 1 is disposed within the housing 200 and is used for mounting the switch unit 300. The trigger assembly 2 is movably disposed relative to the switch base 1 so as to approach the switch base 1 and trigger the switch unit 300 to close it. The locking assembly 3 is movably disposed on the trigger assembly 2 so as to be movable to lock and fix with the switch base 1 when the trigger assembly 2 triggers the switch unit 300 to close, and to be movable to unlock and disengage from the switch base 1. The first drive unit 4 includes a first elastic member 41 disposed between the locking assembly 3 and the trigger assembly 2. The second drive unit 5 includes at least two second elastic members 51 disposed between the trigger assembly 2 and the switch base 1. The second elastic members 51 and the first elastic members 41 are configured as universal parts of the same specification. When the locking assembly 3 is unlocked and disengaged from the switch base 1, the first drive unit 4 drives the locking assembly 3 to move back to its original position, and the second drive unit 5 drives the trigger assembly 2 to move away from the switch base 1.

[0054] In the switch assembly 100 provided by this utility model, the switch unit 300 of the power tool 1000 is disposed on the switch base 1; the trigger assembly 2 is movably disposed relative to the switch base 1 to trigger the switch unit 300 to close, at which time the circuit is connected and the motor assembly is turned on; in order to keep the switch unit 300 in a normally closed state during operation, when the trigger assembly 2 triggers the switch unit 300 to close, the locking assembly 3 moves to lock and fix with the switch base 1; when the motor assembly needs to stop working, the locking assembly 3 moves to unlock and disengage from the switch base 1, at which time the external force applied to the trigger assembly 2 and the locking assembly 3 is removed, the first drive part 4 drives the locking assembly 3 to move and reset, and the second drive part 5 drives the trigger assembly 2 to move away from the switch base 1. Thus, the trigger assembly 2 will move away from the switch unit 300 to make the switch unit 300 open, at which time the circuit is disconnected and the motor assembly stops.

[0055] Meanwhile, the first drive unit 4 includes a first elastic element 41 disposed between the locking component 3 and the trigger component 2; the second drive unit 5 includes at least two second elastic elements 51 disposed between the trigger component 2 and the switch base 1; by configuring the second elastic elements 51 and the first elastic elements 41 as universal parts of the same specification, the elastic elements can be universalized, thereby reducing production costs, improving production efficiency, and ensuring production quality.

[0056] Furthermore, in actual operation, when the trigger switch unit 300 is closed, the loading force applied to the trigger component 2 is set to N1; when the drive locking component 3 is locked and fixed to the switch base 1, the loading force applied to the locking component 3 is set to N2. To improve the user experience, N1 is usually set to be greater than N2; that is, during the reset process, the reset driving force provided by the second drive unit 5 is greater than that of the first drive unit 4. Since the second elastic element 51 and the first elastic element 41 have the same specifications and the same deformation, by adjusting the number of second elastic elements 51, the total elastic force of the second drive unit is increased when the deformation is the same, thereby meeting the reset driving force requirement of the trigger component 2.

[0057] This application does not impose specific limitations on the form of the second elastic element 51. The second elastic element 51 can be configured as a spring, an elastic rubber component, or an elastic metal sheet. The following description takes the example of the second elastic element 51 being configured as a spring, that is, the first elastic element 41 and the second elastic element 51 are configured as springs of the same specifications.

[0058] Continuing from the above, when the trigger switch unit 300 is closed, the loading force applied to the trigger component 2 is set to N1; when the driving locking component 3 is locked and fixed to the switch base 1, the loading force applied to the locking component 3 is set to N2. That is, when the locking component 3 is unlocked and disengaged from the switch base 1, the driving force provided by the second driving unit 5 when driving the trigger component 2 to move away from the switch base 1 is equal to N1, and the driving force provided by the first driving unit 4 when driving the locking component 3 to move and reset is equal to N2. To improve the user experience, N1 is usually greater than N2.

[0059] It is known that the first driving part 4 includes a spring located between the locking component 3 and the triggering component 2. The change of the elastic force of a spring is relatively simple and basically follows Hooke's law, that is, F = k * x (F is the elastic force, k is the spring constant, and x is the deformation). Within the elastic range, the greater the deformation, the greater the elastic force.

[0060] The second drive unit 5 includes at least two springs disposed between the trigger assembly 2 and the switch base 1. The total stiffness coefficient of the two springs arranged in parallel is increased, resulting in greater elastic force under the same deformation, and thus providing a stronger restoring force.

[0061] Thus, when determining the loading forces on the trigger component 2 and the locking component 3 according to the actual product, the number of springs in the second drive unit 5 can be determined based on the value of N1 / N2. Generally, to ensure the stability of the reset of the trigger component 2 and the user experience, the number of springs in the second drive unit 5 is usually set to an even number.

[0062] In the present invention, at least two second elastic elements 51 are arranged side by side between the trigger component 2 and the switch base 1; the following description takes the second elastic element 51 as a spring and two in number as an example.

[0063] To ensure the stability of the spring assembly and the accuracy of the reset of the drive trigger component 2, in one embodiment, please refer to... Figures 5 to 7 The switch base 1 has a slot 11 on the side surface facing the trigger component 2; the switch component 100 also includes a mounting base 6 located between the switch base 1 and the trigger component 2. The mounting base 6 includes a base 61 and a plug post 62 protruding from the base 61. The plug post 62 is movably inserted into the slot 11; one end of each second elastic member 51 is located on the base 61, and the other end is connected to the switch base 1 so that the base 61 abuts against the trigger component 2. The two second elastic members 51 are evenly distributed along the circumference of the plug post 62.

[0064] In other words, in this embodiment, a mounting base 6 is provided between the switch base 1 and the trigger component 2; a slot 11 is provided on the switch base 1, and the mounting base 6 includes a base 61 and a plug-in post 62 protruding from the base 61. The plug-in post 62 is movably inserted into the slot 11, and the two ends of the spring are respectively connected to the base 61 and the switch base 1. At this time, under the pushing force of the spring, the base 61 abuts against the trigger component 2, the contact area is larger, and the operation of the switch component is more stable; when the trigger component 2 moves relative to the switch base 1, the slot 11 and the plug-in post 62 that are inserted and matched play a guiding role and improve the movement stability of the trigger component 2.

[0065] Meanwhile, the two springs are evenly distributed along the circumference of the insertion post 62; this parallel arrangement of the two springs improves the installation stability of the springs, and when the trigger component 2 is reset, the two springs jointly provide the driving force for reset, which not only improves the reset stability of the trigger component 2, but also, compared with the single driving force of a single spring, the force of each spring in multiple springs is relatively small, making installation more convenient; furthermore, the parallel arrangement of springs allows for fine adjustment of the driving force, thereby improving the reset accuracy.

[0066] In one embodiment, please refer to Figures 4 to 7The trigger assembly 2 includes a trigger 21 and a trigger lever 22 disposed on the trigger 21. The trigger 21 is for user operation and has a first end 211 and a second end 212 opposite to each other. The first end 211 is rotatably connected to the switch base 1 so that the second end 212 can rotate to move closer to or away from the switch base 1. When the second end 212 rotates closer to the switch base 1, the trigger lever 22 can trigger the switch unit 300 to close. The second drive part 5 is disposed between the trigger 21 and the switch base 1, and the two ends of each second elastic member 51 are respectively connected to the trigger 21 and the switch base 1. The locking assembly 3 is movably disposed on the trigger 21 and disposed close to the second end 212, and the first elastic member 41 is disposed between the locking assembly 3 and the trigger 21.

[0067] Specifically, the switch base 1 is provided with a mating part 13; the locking assembly 3 includes a locking button 31 and a latching part 32 provided on the locking button 31. The locking button 31 is movably provided on the trigger 21 so that when the trigger rod 22 triggers the switch unit 300 to close, the locking button 31 can move so that its latching part 32 is fastened and fixed with the mating part 13.

[0068] The locking button 31 has a third end 311 and a fourth end 312. The third end 311 is rotatably connected to the trigger 21. The rotation axis of the third end 311 is parallel to the rotation axis of the first end 211. When the trigger rod 22 triggers the switch unit 300 to close, the locking button 31 can rotate to fasten the buckle 32 and the mating part 13. The trigger 21 is provided with a baffle 23, which is opposite to the fourth end 312. The first elastic member 41 connects the baffle 23 and the fourth end 312.

[0069] A guide groove 14 is provided on the side of the switch base 1 facing the locking button 31, and a mating part 13 is provided on the inner wall of the guide groove 14. A locking rod 33 protrudes from the side of the locking button 31 facing the switch base 1. The locking rod 33 has a locking end 331 away from the locking button 31. A buckle 32 is provided on the locking end 331. The locking button 31 has a first position, a second position and a third position in its rotation stroke. In the first position, the locking end 331 abuts against the periphery of the guide groove 14 for limitation. In the second position, the locking end 331 is positioned directly opposite the opening of the guide groove 14 so that when the second end 212 rotates, the locking end 331 can be movably inserted into the guide groove 14. When the second end 212 rotates to the point that the trigger rod 22 triggers the switch unit 300 to close, the locking end 331 moves to make its buckle 32 correspond to the position of the mating part 13, and the locking button 31 rotates to the third position so that the buckle 32 and the mating part 13 are fastened and fixed.

[0070] In one embodiment, the buckle 32 includes a hook 321 disposed on the locking end 331, and the mating part 13 includes a groove 131 disposed on the inner wall of the guide groove 14.

[0071] Based on the structure of the above embodiment, the movement process of the switch assembly 100 will be described in detail below. Please refer to... Figure 5 , Figure 5 This is a schematic diagram of the switch assembly 100 in its initial state. The trigger 21, trigger lever 22, locking button 31, and locking lever 33 are all in their initial state. At this time, the trigger 21 is away from the switch base 1, the trigger lever 22 does not trigger the switch unit 300 to close, the locking button 31 is in the first position, and the locking end 331 of the locking lever 33 abuts against the periphery of the guide groove 14 to limit the movement. The user cannot press the trigger 21.

[0072] Please see Figure 6 , Figure 6 This is a schematic diagram of the switch assembly 100 in the pressed state. The user first moves the locking button 31 to rotate it to the second position. In the second position, the locking end 331 of the locking lever 33 is positioned directly opposite the slot of the guide groove 14. The user can press the trigger 21 to move the trigger 21 closer to the switch base 1. The trigger 21 drives the locking button 31 closer to the switch base 1. At this time, the locking end 331 of the locking lever 33 can be inserted into the guide groove 14, and the trigger rod 22 is close to the switch unit 300 on the switch base 1.

[0073] Please see Figure 7 , Figure 7 This is a schematic diagram of the switch assembly 100 in the locked state. As the user presses the trigger 21, the trigger lever 22 approaches the switch unit 300 on the switch base 1; during the process of the trigger lever 22 triggering the switch unit 300 to close, the locking button 31 moves with the trigger 21, so that the hook 321 on the locking end 331 moves to correspond to the position of the slot 131 on the switch base 1, and at the same time the locking button 31 rotates to the third position, so that the hook 321 is locked and fixed with the slot 131; at this time, the switch unit 300 is in the normally closed state.

[0074] When the power tool 1000 finishes its work and the motor assembly needs to be stopped, the user continues to press the trigger 21 to bring it closer to the switch base 1. At this time, driven by the trigger 21, the locking button 31 moves closer to the switch base 1, causing the hook 321 on the locking rod 33 to move closer to the switch base 1 and move above the slot of the slot 131. Driven by the spring 41 between the baffle 23 and the fourth end 312, the locking button 31 rotates to the second position so that the hook 321 is misaligned with the slot of the slot 131. At this time, driven by the second elastic element 51, the trigger 21 moves away from the switch base 1 to reset, and at the same time, it drives the locking button 31 away from the switch base 1. When the locking end 331 of the locking rod 33 disengages from the slot of the guide groove 14, the first elastic element 41 drives the locking button 31 to rotate so that it resets to the first position.

[0075] It is known that when the locking button 31 is switched from the first position to the second position, the locking end 331 is set directly opposite the opening of the guide groove 14, and when the user continuously presses the trigger 21, the locking end 331 is movably inserted into the guide groove 14; in order to facilitate the insertion of the locking end 331, in one embodiment, the inner wall of the guide groove 14 is provided with an outwardly flared chamfer 15 near the periphery of its opening, which serves as a guide for the insertion of the locking end 331.

[0076] In one embodiment, please refer to Figure 3 and Figure 4 The switch base 1 has a mounting side 1a facing away from the trigger 21, and the switch unit 300 is located on the mounting side 1a. The switch base 1 is provided with a socket 12; the end of the trigger lever 22 is movably inserted through the socket 12. By mounting the switch unit 300 on the side of the switch base 1 facing away from the trigger 21, the arrangement of components within the housing 200 becomes more rational and compact. Simultaneously, by providing the socket 12 and allowing the trigger lever 22 to movably insert within it, the trigger lever 22 can move closer to or further away from the switch unit 300 during its operation. The switch unit 300 can be directly mounted on the switch base 1; or it can be indirectly mounted on the switch base 1, for example, by providing a switch box that houses the circuit board, with the switch box snapped into the switch base 1, and the switch unit 300 integrated into the circuit board.

[0077] Please continue reading. Figures 5 to 7 The trigger 21 has an avoidance notch 213 near the second end 212; the locking button 31 is movably mounted on the trigger 21 and its partial self-avoidance notch 213 is exposed for user operation; thus, while satisfying user operation convenience, the structure of the switch assembly 100 can be arranged more reasonably and compactly.

[0078] Secondly, embodiments of this application provide an electric tool 1000; please refer to [link to relevant documentation]. Figures 1 to 3 The power tool 1000 includes a switch assembly 100, a housing 200, a motor assembly (not shown), and a switch unit 300. The motor assembly and the switch unit 300 are housed within the housing 200. The switch assembly 100 is located within the housing 200. A trigger 21 and a locking button 31 of the switch assembly 100 are partially exposed through an opening 201 for user operation. A switch base 1 of the switch assembly 100 is provided for mounting the switch unit 300. The switch base 1 is fixed to the housing 200 to provide a reference point for the movable parts of the switch assembly 100.

[0079] It should be noted that the switch assembly 100 is configured as described above, which includes all the technical features of the switch assembly 100. Therefore, the power tool 1000 also includes all the technical features of the switch assembly 100, and thus has the technical effects brought about by all the technical features described above.

[0080] In one embodiment, the power tool 1000 further includes a grip 400 disposed on a housing 200, the housing 200 and the grip 400 being disposed at an angle.

[0081] In one embodiment, the housing 200 may be formed by splicing together at least two outer shells 202, see [link to relevant documentation]. Figure 2 Specifically, the housing 200 is composed of two outer shells 202 joined together, and the two outer shells 202 together define the mounting cavity of the housing 200. The accompanying drawings provided in this application show one of the outer shells 202 while concealing the other outer shell 202 to illustrate the connection between the housing 200 and the switch assembly 100.

[0082] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A switching assembly for use in a power tool, the power tool comprising a housing, a motor assembly disposed within the housing, and a switching unit, characterized in that, The switching assembly includes: A switch holder is disposed inside the housing and is used for mounting the switch unit; A triggering component is movably disposed relative to the switch base so as to be able to approach the switch base and trigger the switch unit to close it; A locking component is movably disposed on the triggering component so that it can be moved to lock and fix with the switch base when the triggering component triggers the closing of the switch unit, and can be moved to unlock and disengage from the switch base. The first driving part includes a first elastic member disposed between the locking component and the triggering component; The second drive unit includes at least two second elastic members disposed between the trigger component and the switch base, wherein the second elastic members and the first elastic members are configured as common parts of the same specification. Specifically, when the locking component is unlocked and disengaged from the switch base, the first driving unit drives the locking component to reset, and the second driving unit drives the triggering component to move away from the switch base.

2. The switching assembly according to claim 1, characterized in that, The switch base has a slot on the side surface facing the trigger component; The switch assembly further includes a mounting base located between the switch base and the trigger assembly. The mounting base includes a base and a plug protruding from the base, the plug being movably inserted into the slot. One end of each of the second elastic elements is disposed on the base, and the other end is connected to the switch base so that the base abuts against the trigger assembly, and the at least two second elastic elements are evenly distributed along the circumference of the plug post.

3. The switching assembly according to claim 1, characterized in that, The triggering assembly includes a trigger and a trigger lever disposed on the trigger. The trigger is for user operation and has a first end and a second end opposite to each other. The first end is rotatably connected to the switch base so that the second end can rotate to move closer to or away from the switch base. When the second end rotates closer to the switch base, the trigger lever can trigger the switch unit to close. The second drive unit is disposed between the trigger and the switch base, and both ends of each second elastic member are respectively connected to the trigger and the switch base; The locking assembly is movably disposed on the trigger and located near the second end, and the first elastic member is disposed between the locking assembly and the trigger.

4. The switching assembly according to claim 3, characterized in that, The switch base has a mounting side facing away from the trigger, the switch unit is located on the mounting side, and the switch base is provided with a socket; The end of the trigger rod is movably inserted through the socket.

5. The switching assembly according to claim 3, characterized in that, The switch base is provided with a mating part; The locking assembly includes a locking button and a latch on the locking button. The locking button is movably disposed on the trigger so that when the trigger rod triggers the closing of the switch unit, the locking button can move to fasten and fix its latch with the mating part.

6. The switching assembly according to claim 5, characterized in that, The locking button has a third end and a fourth end, the third end is rotatably connected to the trigger, the rotation axis of the third end is parallel to the rotation axis of the first end, and when the trigger rod triggers the switch unit to close, the locking button can rotate to fasten and fix the buckle with the mating part. The trigger is provided with a baffle, which is disposed opposite to the fourth end, and the first elastic element connects the baffle and the fourth end.

7. The switching assembly according to claim 6, characterized in that, The switch base is provided with a guide groove on the side facing the locking button, and the mating part is provided on the inner wall of the guide groove; The locking button has a locking rod protruding from one side of the switch base. The locking rod has a locking end away from the locking button. The locking end is provided with the buckle. The locking button has a first position, a second position and a third position in its rotation stroke. In the first position, the locking end abuts against and limits the periphery of the guide groove; In the second position, the locking end is positioned directly opposite the opening of the guide groove, so that when the second end rotates, the locking end can be movably inserted into the guide groove. When the second end is rotated to the point where the trigger rod triggers the switch unit to close, the locking end moves to the point where the buckle on it corresponds to the position of the mating part, and the locking button rotates to the third position so that the buckle and the mating part are fastened and fixed.

8. The switching assembly according to claim 7, characterized in that, The inner wall of the guide groove has an outwardly flared chamfer near the periphery of its opening.

9. The switching assembly according to any one of claims 5 to 8, characterized in that, The trigger has an avoidance notch located near the second end; The locking button is movably disposed on the trigger, and a portion thereof is exposed from the clearance notch for user operation.

10. A power tool, characterized in that, include: A housing, wherein the housing has an opening communicating with its interior, and the housing contains a motor assembly and a switch unit; as well as, The switch assembly as described in any one of claims 1-9, wherein the switch assembly is disposed in the housing, the trigger and locking button of the switch assembly are partially exposed from the opening for user operation, and the switch socket of the switch assembly is for mounting the switch unit.

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