CN223313704U - Operating mechanism of electric tool and electric tool - Google Patents

Abstract

The present utility model discloses an operating mechanism for an electric tool, belonging to the technical field of electric tools. It solves the problem of easy mis-triggering of the operating mechanism in the prior art. The technical solution to this problem mainly includes a base, a switch, a trigger rotatably mounted on the base, and a button slidably mounted on the base. The trigger has an initial position away from the switch and a trigger position for triggering the switch. The button includes a first locking portion and a second locking portion spaced apart along its sliding direction. The button has a first locking position and a second locking position. When the trigger is in the initial position, the button is in the first locking position and abuts against the trigger via the first locking portion to lock it in the initial position. When the button is in the second locking position, the trigger can be rotated from the initial position to the trigger position, and the button locks the trigger in the trigger position via the second locking portion. The present utility model is mainly used to effectively reduce mis-triggering of the operating mechanism. The present utility model also discloses an electric tool.

Description

Operating mechanism of electric tool and electric tool

Technical Field

The utility model relates to the technical field of electric tools, in particular to an operating mechanism of an electric tool and the electric tool.

Background

The angle grinder is a tool for cutting or polishing stone and metal, the angle grinder controls the start and stop of a machine by virtue of a switch, in order to improve the experience of a user, a lockable operation structure, a lockable switch and an angle grinder are disclosed in the prior art as disclosed in an utility model patent CN209615103U, a locking piece is arranged to be respectively locked in a first limit hole and a second limit hole on a button, continuous locking of the button at two positions is realized, one position is set to be a working position, the other position is set to be a non-working position, the button can be locked at the working position, the working state is kept, and the angle grinder is not required to be manually operated for a long time and is suitable for long-time use. However, under the condition of power on, when the button is touched carelessly, the work can be started, personal injury or equipment damage is caused, and serious potential safety hazards exist.

Disclosure of utility model

The utility model aims to provide an operating mechanism of an electric tool, which solves the problem that the operating mechanism is easy to trigger by mistake in the prior art, effectively reduces the false triggering of the operating mechanism and improves the use safety.

In order to achieve the above object, the present utility model adopts a technical scheme that an operating mechanism of an electric tool comprises a base, a switch, a trigger rotatably mounted on the base and a button slidably mounted on the base, wherein the trigger has an initial position far from the switch and a trigger position for triggering the switch, the trigger has a pressing stroke for being pressed to move from the initial position to the trigger position, the button comprises a first locking part and a second locking part which are arranged at intervals along a sliding direction of the button, the button has a first locking position and a second locking position, when the trigger is positioned at the initial position, the button is positioned at the first locking position and is abutted against the trigger through the first locking part to lock the trigger at the initial position, and when the button is positioned at the second locking position, the trigger can be rotated from the initial position to the trigger position through the second locking part to lock the trigger at the trigger position.

By adopting the technical scheme, the electric tool has the advantages that the first locking piece ensures that the trigger cannot be accidentally moved to the trigger position when the electric tool is not used, the risk of unintentionally starting the electric tool is avoided, particularly in the process of transportation or storage, the button must be pressed firstly to unlock the trigger, the possibility of accidental starting is reduced by a user, secondly, the second locking piece can fix the trigger after the trigger reaches the trigger position, the fact that the user does not need to continuously apply force to the trigger when the trigger continuously works is meant, the hand fatigue is reduced, the design of the independent locking piece can provide finer and stable control, particularly the electric tool vibrates in the starting process of the electric tool, the trigger can be locked at the initial position by the simple first locking piece when the electric tool is not started, finally, the user can be assisted to select whether the trigger is locked or not according to the requirement by the different locking positions of the button, the user can be helped to be locked or not currently locked by the position of the button, and the risk of starting the electric tool is reduced, and the electric tool can be intuitively started more easily.

Further, the trigger is rotatably mounted on the base through a rotating shaft, the sliding direction of the button is the same as the axial direction of the rotating shaft, and the button is located between the trigger and the switch.

By adopting the technical scheme, the layout of the button and the trigger takes the ergonomics principle into consideration, so that a user can naturally apply force during operation, the button and the trigger respectively act at two positions of the hand, and particularly the locking and unlocking of the trigger are more convenient through thumb joint pressing and four-finger grasping.

Further, the first locking part is a limit rib formed by protruding and extending the button towards the trigger, and the button is located at the first locking position and abuts against the trigger through the limit rib so as to lock the button at the initial position.

By adopting the technical scheme, the direct contact of the limiting rib and the trigger provides physical blocking, accidental triggering of the trigger is effectively prevented, the contact between the limiting rib and the trigger can be very accurate, when the limiting rib is propped against the trigger, a user can obviously feel click or hand feel change, the instant feedback can help the user confirm whether the trigger is correctly locked, the possibility of operation errors is reduced, the design of the limiting rib enables the unlocking trigger to be simple, and the trigger can be easily pressed only by sliding the button to leave the first position without contacting the limiting rib with the trigger.

Further, the trigger is provided with a supporting rib which is formed by protruding and extending towards the direction of the button, and when the button is positioned at the first locking position, the trigger is propped against the limiting rib through the supporting rib.

By adopting the technical scheme, the supporting rib can supplement the distance between the trigger and the limiting rib, the length of the limiting rib can be shortened, the shorter the length of the limiting rib is, the less prone to deformation of the limiting rib is, secondly, the supporting rib is in contact with the limiting rib instead of directly contacting the trigger body with the limiting rib, so that stress can be dispersed, abrasion of a high-stress area is reduced, the service life of the trigger is guaranteed, and the shape and the position of the supporting rib can be further optimized to adapt to the shape of the limiting rib, so that the interaction of the supporting rib and the limiting rib forms a more stable mechanical locking.

Further, the button further comprises an avoidance space positioned on one side of the limiting rib, the avoidance space and the limiting rib are axially arranged along the button, and the avoidance space is positioned on the pressing stroke to avoid the supporting rib.

By adopting the technical scheme, the avoidance space ensures that the supporting rib can pass through without obstacle in the pressing stroke, and avoids any unnecessary contact with the button, thereby ensuring the smoothness and continuity of the movement of the trigger.

Further, the trigger is provided with a hook, the second locking portion comprises a first buckling portion extending along a direction perpendicular to a pressing stroke of the trigger and a second buckling portion extending along a sliding direction perpendicular to the button, by pressing the button, a surface of the hook can be abutted with the first buckling portion to limit rotation of the trigger, and a surface of the hook can be abutted with the second buckling portion to limit sliding of the button.

By adopting the technical scheme, the cooperation of the clamping hook and the first buckling part can lock the rotation of the trigger, and the cooperation of the clamping hook and the second buckling part can lock the sliding of the button, so that a double locking mechanism is realized, and the trigger can be locked at the triggering position more stably because the button is not easy to loosen when being positioned at the second locking position.

Further, a first elastic piece is further arranged between the trigger and the base, the first elastic piece provides an acting force for the trigger to reset to the initial position, a second elastic piece is further arranged between the button and the base, and the second elastic piece provides an acting force for the button to reset to the first position.

By adopting the technical scheme, when the trigger or the button is released, the restoring force of the first elastic piece and the second elastic piece can push the trigger or the button back to the initial position, so that the risk of accidental triggering is reduced, and particularly in an emergency, the operation of the tool can be stopped rapidly, the operation safety is improved, the manual reset is not needed, the operation efficiency and the convenience are improved, and the forgetting of manual operation is reduced.

Further, the trigger is equipped with towards the protruding support muscle that extends formation of button direction, be equipped with spacing groove and spacing hole that extends along trigger rotation direction on the support muscle, radially communicate through the linkage segment between spacing groove and the spacing hole, the position that the support muscle is located the linkage segment is equipped with spacing step, the size of first locking part and second locking part is greater than the width of linkage segment, first locking part can lock the trigger in initial position with spacing step butt, the second locking part can block into in the spacing hole with the trigger lock in triggering position.

By adopting the technical scheme, the design of the limit groove and the limit hole provides a definite locking position, so that the stability of the trigger at the initial position and the trigger position is ensured, unnecessary shaking or position deviation is avoided, the first locking part is blocked into the limit hole by the abutting joint of the limit step and the second locking part, and stable mechanical locking is formed.

It is a further object of the present utility model to disclose a power tool comprising a body and a controller, an electronic assembly and an operating mechanism of the power tool according to any of the above embodiments provided on the body, said controller being simultaneously in signal connection with the switch and the electronic assembly.

By adopting the technical scheme, the operating mechanism can be triggered in a non-operating state, so that the electric tool is effectively prevented from being started accidentally, the safety accident risk caused by false touch is greatly reduced, and the use safety of the electric tool is improved.

Further, the body includes a handle portion and a housing portion at a rear side of the handle portion, the operating mechanism is located between the handle portion and the housing portion, the electronic component and the switch are mounted in the handle portion, and the controller is mounted in the housing portion.

By adopting the technical scheme, the electronic component, the switch and the controller are respectively arranged in the handle part and the shell part, so that the space inside the electric tool is fully utilized, and the electronic component can be mounted in the handle part by reserving enough space due to the small size of the switch, and the handle part is convenient to hold, so that the electric tool is suitable for man-machine engineering.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of an operating mechanism of an electric tool according to an embodiment of the present utility model;

FIG. 2 is an exploded view of an operating mechanism of a power tool according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a button according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the operating mechanism of the trigger in the free pressing position according to the embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the operating mechanism of the embodiment of the present utility model after the trigger is pressed;

FIG. 6 is a schematic view of the mechanism of the trigger locked in the triggered position according to the embodiment of the present utility model;

FIG. 7 is a schematic structural diagram of an operation mechanism with a hook separated from a button hole according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of an operating mechanism with a support rib in an avoidance space according to an embodiment of the present utility model;

FIG. 9 is a schematic view of an operating mechanism for returning a trigger to an initial position according to an embodiment of the present utility model;

FIG. 10 is a schematic structural view of an operating mechanism according to a second embodiment of the present utility model;

Fig. 11 is a schematic structural view of a power tool according to a third embodiment of the present utility model

In the figure, 100, a switch, 110, a trigger, 111, a supporting rib, 112, a clamping hook, 113, a triggering part, 114, a limiting groove, 115, a limiting hole, 116, a connecting section, 117, a limiting step, 118, a limiting surrounding edge, 120, a button, 1201, a first section, 1202, a second section, 121, a first locking part, 1211, a limiting rib, 1212, a limiting block, 122, a second locking part, 1221, a first buckling part, 1222, a second buckling part, 1223, a buckling hole, 1224, a limiting ring, 123, an avoidance space, 124, an avoidance area, 130, a first elastic piece, 140, a second elastic piece, 200, a handle part, 210, a shell part, 220, a controller, 230 and an electronic component.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

It should be understood that, in various embodiments of the present utility model, the size of the sequence numbers of each process is not meant to indicate the order of execution, and the order of execution of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present utility model.

It should be understood that in the present utility model, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in the present utility model, "plurality" means two or more. "and/or" is merely an association relationship describing the association object, and means that three relationships may exist, for example, X and/or Y may mean that three cases of X alone, X and Y together, and Y alone exist. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising X, Y and Z", "comprising X, Y, Z" means that all three of X, Y, Z comprise, "comprising X, Y or Z" means that one of X, Y, Z comprises, "comprising X, Y and/or Z" means that any one or any two or three of X, Y, Z comprise.

The technical scheme of the utility model is described in detail below by specific examples. The following specific embodiments may be combined with or replaced with each other according to actual situations, and the same or similar concepts or processes may not be described in detail in some embodiments.

Embodiment one:

As shown in fig. 1 to 9, the present utility model provides an operating mechanism of a power tool, comprising a base, a switch 100, a trigger 110 rotatably mounted on the base, and a button 120 slidably mounted on the base, the trigger 110 having an initial position away from the switch 100 and a trigger position for triggering the switch 100, the trigger 110 having a pressing stroke for being pressed to move from the initial position to the trigger position, the button 120 including a first locking portion 121 and a second locking portion 122 disposed at intervals along a sliding direction thereof, the button 120 having a first locking position and a second locking position, the button 120 being located at the first locking position and being abutted against the trigger 110 by the first locking portion 121 to lock the trigger 110 in the initial position when the trigger 110 is located at the initial position, ensuring that the trigger 110 is not accidentally moved to the trigger position when not in use, avoiding a risk of unintentionally starting the power tool, particularly, during transportation or storage, the button 120 must be pressed first to release the locking of the trigger 110, which requires a user to intentionally start it, thereby reducing the possibility of accidental starting. Secondly, when the button 120 is at the second locking position, the trigger 110 can be rotated from the initial position to the triggering position, and the button 120 locks the trigger 110 at the triggering position through the second locking part 122, which means that the user does not need to continuously apply force to the trigger 110 when continuously working, so that hand fatigue is reduced, different locking positions of the button 120 allow the user to select whether to lock the trigger 110 according to the requirement, and the user can be helped to know whether the electric tool is currently locked or not through the position of the button 120, so that the risk of misoperation is reduced, and the starting of the electric tool is more visual and controllable.

Specifically, the trigger 110 is rotatably mounted to the base via a rotation shaft. Because two parts of the button 120 and the trigger 110 are required to be operated when the operating mechanism is started, in order to facilitate the operation of a user, the sliding direction of the button 120 is the same as the axial direction of the rotating shaft, and the button 120 is positioned between the trigger 110 and the switch 100, the layout of the button 120 and the trigger 110 takes the ergonomics into consideration, so that the user can naturally apply force when operating, the button 120 and the trigger 110 respectively act at two positions of the hand, and particularly the locking and unlocking of the trigger 110 are more convenient by pressing by thumb joints and grasping by four fingers.

And, a mounting channel for mounting the button 120 is provided on the base, the button 120 includes a first section 1201 inside the base and a second section 1202 outside the base, the first locking portion 121 and the second locking portion 122 are provided on the first section 1201 along an axial direction of the button 120, and the second section 1202 is used for a user to manually operate the button 120 to slide the button 120 relative to the base, thereby changing positions of the first locking portion 121 and the second locking portion 122 relative to the trigger 110 to control locking and unlocking of the trigger 110.

When the electric tool is not started, the force on the electric tool is stable, and the trigger 110 can be locked at the initial position by the simple first locking part 121.

Preferably, the first locking portion 121 is a limit rib 1211 formed by extending the button 120 in a protruding manner towards the trigger 110, the button 120 is located at the first locking position and abuts against the trigger 110 through the limit rib 1211 to lock the button in the initial position, the direct contact between the limit rib 1211 and the trigger 110 provides a physical barrier, accidental triggering of the trigger 110 is effectively prevented, the contact between the limit rib 1211 and the trigger 110 can be very precise, when the limit rib 1211 abuts against the trigger 110, a user can obviously feel a click sound or feel change, the instant feedback can help the user confirm whether the trigger 110 is locked correctly, the possibility of operation errors is reduced, the design of the limit rib 1211 makes unlocking the trigger 110 simple, and the trigger 110 can be easily pressed only by sliding the button 120 away from the first position, and the limit rib 1211 is no longer in contact with the trigger 110.

Because the pressing stroke of the trigger 110 has a certain stroke, the spacing rib 1211 needs to be set to a longer length to prop against the trigger 110 when the trigger 110 is at the initial position, but the overlong spacing rib 1211 is easy to deform, for this reason, in this embodiment, the trigger 110 is provided with the supporting rib 111 formed by protruding and extending towards the direction of the button 120, the supporting rib 111 can supplement the distance between the trigger 110 and the spacing rib 1211, the length of the spacing rib 1211 can be shortened, when the button 120 is at the first locking position, the trigger 110 props against the spacing rib 1211 through the supporting rib 111 instead of directly contacting the trigger 110 body with the spacing rib 1211, so that the stress is dispersed, the abrasion of a high stress area is reduced, thereby guaranteeing the service life of the trigger 110, and the shape and position of the supporting rib 111 can be further optimized to adapt to the shape of the spacing rib 1211, thereby the interaction between the supporting rib 111 and the spacing rib 1211 forms a more stable mechanical lock. Specifically, the mechanical locking performance can be improved by setting the abutting surface of the supporting rib 111 and the limiting rib 1211 larger, or by setting a slotted hole matching structure on the surface of the supporting rib 111 or the limiting rib 1211.

Due to the fact that the supporting ribs 111 are arranged, the supporting ribs 111 rotate along with the trigger 110 in the pressing stroke, in order to avoid the situation that the trigger 110 is blocked due to the fact that the supporting ribs 111 are offset with other structures, the button 120 further comprises an avoidance space 123 located on one side of the limiting ribs 1211, the avoidance space 123 and the limiting ribs 1211 are distributed along the axial direction of the button 120, the avoidance space 123 is located in the pressing stroke to avoid the supporting ribs 111, the avoidance space 123 ensures that the supporting ribs 111 can pass through in the pressing stroke without barriers, and any unnecessary contact with the button 120 is avoided, so that smoothness and continuity of movement of the trigger 110 are guaranteed.

In the starting process of the electric tool, the electric tool generates larger vibration, the second locking piece is easy to loosen, and in order to provide a more stable locking effect, the second locking part 122 with more complexity can be arranged.

Preferably, the trigger 110 is provided with a hook 112, the second locking portion 122 includes a first fastening portion 1221 extending along a direction perpendicular to a pressing stroke of the trigger 110 and a second fastening portion 1222 extending along a sliding direction of the vertical button 120, the first fastening portion 1221 and the second fastening portion 1222 are surrounded to form a fastening hole 1223, the hook 112 can be fastened into the fastening hole 1223 by pressing the button 120, a surface of the hook 112 can abut against the first fastening portion 1221 to limit rotation of the trigger 110, and a surface of the hook 112 can abut against the second fastening portion 1222 to limit sliding of the button 120, thereby realizing a double locking mechanism, so that the button 120 is less prone to loosening when in the second locking position, and the trigger 110 can be locked in the triggering position more stably.

It should be noted that, the avoidance space 123 is located between the first locking portion 121 and the second locking portion 122, in order to facilitate the trip 112 to be clamped into the buckling hole 1223, the lateral dimension and the longitudinal dimension of the avoidance space 123 are both greater than those of the supporting rib 111, the supporting rib 111 can move in the avoidance space 123, so that the trigger 110 can be pressed and reset freely, an avoidance area 124 is arranged above the first buckling portion 1221 and the second buckling portion 1222, the avoidance area 124 is communicated with the avoidance space 123, the avoidance area 124 is located at one lateral side of the avoidance space 123, the trip 112 can move freely in the avoidance space 123, and can move into the avoidance area 124 and then buckle into the buckling hole 1223.

And, the hook 112 is disposed on the supporting rib 111, so that the hook 112 is far away from the trigger 110 body, and the hook 112 can easily pass through the avoidance space 123 and the avoidance area 124 to enter or move out of the fastening hole 1223.

In order to enable timely resetting of the trigger 110 and the button 120 to lock the trigger 110 in the initial position in case of an operation break or emergency, the operating mechanism further comprises a first elastic member 130 and a second elastic member 140, the trigger 110 is movably arranged on the base along the pressing stroke through the first elastic member 130, the button 120 is slidably arranged on the base through the second elastic member 140, the first elastic member 130 provides a force for resetting the trigger 110 from the trigger position to the initial position, the first elastic member 130 provides a force for resetting the trigger 110 to the initial position, and the second elastic member 140 provides a force for resetting the button 120 to the first position, so that the button 120 automatically returns to the first position after each operation is completed, and the first locking part 121 locks the trigger 110 in the initial position, which helps to prevent accidental starting of the electric tool, particularly in case of an emergency, the operation of the electric tool can be stopped rapidly, and the forgetting possibility of manual operation is reduced.

In order to trigger the switch 100 more accurately, the trigger 110 is further provided with a trigger part 113 extending along the rotation direction of the trigger part, the trigger part 113 is used for triggering the switch 100, the trigger 110 triggers the switch 100 only when reaching the correct position in the process of moving from the reset position to the trigger position, the operation safety is enhanced, secondly, the trigger part 113 and the supporting ribs 111 are arranged at intervals in the length direction of the trigger 110, false triggering of the supporting ribs 111 to touch the switch 100 is effectively prevented, the operation safety and reliability are further enhanced, the internal layout is optimized, and the whole mechanism is more compact.

Preferably, the switch 100 is a micro-switch, which is relatively sensitive to reaction. Of course, the switch 100 may be a pressure switch, a proximity switch, a magnetic switch, a rotary encoder switch, or the like.

In the initial state, as shown in fig. 1, the first elastic member 130 pushes the trigger 110 to be located at the initial position, and the second elastic member 140 pushes the button 120 to be located at the first position, at this time, the limiting rib 1211 abuts against the supporting rib 111, and the trigger 110 cannot be directly pushed, so that false touch actuation can be prevented;

The first step of starting the operating mechanism is that as shown in fig. 4, the button 120 is pressed down along the arrow direction to cause the spacing rib 1211 to be dislocated with the supporting rib 111, the supporting rib 111 is positioned in the avoidance space 123, and at this time, the trigger 110 can be triggered freely;

Second, as shown in FIG. 5, the trigger 110 is pressed in the arrow direction to extend the support rib 111 into the avoidance space 123;

Third, as shown in fig. 6, the button 120 is continuously pressed along the arrow direction, so that the supporting rib 111 moves transversely relative to the avoidance space 123, and the hook 112 enters the avoidance channel;

Fourth, as shown in fig. 6, the trigger 110 is released, the first elastic member 130 drives the trigger 110 to move along the arrow direction, the button 120 is at the second position, the hook 112 is clamped into the fastening hole 1223, so that the trigger 110 is in the locking state, and at this time, the trigger part 113 triggers the switch 100;

The first step of releasing the self-locking of the operating mechanism is to press the trigger 110 in the arrow direction as shown in fig. 7, so that the hook 112 is separated from the button hole 1223 and enters the avoidance area 124;

In the second step, as shown in fig. 8, the button 120 moves along the arrow direction under the elastic restoring action of the second elastic member 140, and the supporting rib 111 moves transversely relative to the avoiding space 123, so that the hook 112 enters the avoiding space 123, and the trigger 110 can be pressed freely;

Third, as shown in fig. 9, when the trigger 110 is released, the first elastic member 130 drives the trigger 110 to move toward the initial position until the supporting rib 111 is separated from the avoiding space 123, at this time, the supporting rib 111 will not contact with the limiting rib 1211 in the lateral direction, and the button 120 is driven by the second elastic member 140 to move toward the first position, so that the limiting rib 1211 and the supporting rib 111 abut, the trigger 110 is in a locked state, and the trigger 110 cannot be pressed.

Embodiment two:

As shown in fig. 10, in this embodiment, the trigger 110 is provided with a supporting rib 111 extending towards the direction of the button 120 in a protruding manner, the supporting rib 111 is provided with a limiting groove 114 and a limiting hole 115 extending along the rotation direction of the trigger 110, the limiting groove 114 and the limiting hole 115 are radially communicated through a connecting section 116, the position of the supporting rib 111 at the connecting section 116 is provided with a limiting step 117, the dimensions of the first locking part 121 and the second locking part 122 are larger than the width of the connecting section 116, the design of the limiting groove 114 and the limiting hole 115 provides a definite locking position, the first locking part 121 can abut against the limiting step 117 to lock the trigger 110 at an initial position, and the second locking part 122 can be clamped into the limiting hole 115 to lock the trigger 110 at a triggering position, so that the stability of the trigger 110 at the initial position and the triggering position is ensured, and a stable mechanical locking is formed.

It should be noted that, the limiting groove 114 is located above the limiting hole 115, the first locking portion 121 may be a limiting block 1212, the second locking portion 122 may be a limiting ring 1224 disposed along a circumference of the first section 1201, a diameter of the limiting ring 1224 and a width of the limiting block 1212 are greater than that of the first section 1201, a width of the first section 1201 is smaller than that of the connecting section 116, a limiting surrounding edge 118 is disposed on a side, close to the second section 1202, of the limiting hole 115, and an inner ring diameter of the limiting surrounding edge 118 is smaller than that of the limiting ring 1224 and greater than that of the first section 1201, so that when the limiting ring 1224 is located in the limiting hole 115, the limiting surrounding edge 118 can form a limiting effect on the button 120 along a sliding direction, so that when the limiting ring 1224 is located in the limiting hole 115, the trigger 110 can be locked more stably.

In the initial state, the limiting block 1212 and the limiting step 117 are mutually supported, and the trigger 110 can not be pressed directly, so that false touch starting can be prevented;

The first step of starting the operating mechanism is to press the button 120, misplace the limiting block 1212 and the limiting step 117, and pass the limiting ring 1224 through the limiting groove 114;

The second step is to keep the state of pressing the button 120, and press the trigger 110 to make the first section 1201 extend into the limiting hole 115;

And thirdly, loosening the button 120 to enable the button 120 to reset towards the first position for a certain distance under the action of the second elastic piece 140, wherein the limiting ring 1224 enters the limiting hole 115, and the limiting ring 1224 abuts against the limiting surrounding edge 118 and the connecting section 116 respectively, so that the trigger 110 is in a self-locking state, and the triggering part 113 triggers the switch 100.

The unlocking of the operating mechanism occurs in the reverse order of the steps of activating the operating mechanism, wherein the pressing of the button 120 and the trigger 110 occurs in the reverse direction.

The non-description of the present embodiment may refer to the above-described embodiment.

Embodiment III:

As shown in fig. 11, the present embodiment discloses an electric tool, which includes a body, a controller 220 and an electronic component 230 disposed on the body, and an operating mechanism of the electric tool according to the above embodiment, where the controller 220 is simultaneously connected with the switch 100 and the electronic component 230 by signals, and the self-locking belt back-locking function can prevent the accidental starting of the device in a non-operating state, so as to greatly reduce the risk of safety accidents caused by misoperation, and facilitate the improvement of the use safety of the electric tool.

Specifically, the body includes a handle portion 200 and a housing portion 210 located at the rear side of the handle portion 200, the operating mechanism is located between the handle portion 200 and the housing portion 210, the electronic component 230 and the switch 100 are installed in the handle portion 200, the controller 220 is installed in the housing portion 210, the space inside the electric tool is fully utilized, and, due to the small size of the switch 100, sufficient space can be reserved in the handle portion 200 for installing the electronic component 230, and the handle portion 200 can be made smaller, convenient to hold, and ergonomic.

The trigger 110, the button 120, and the switch 100 may be directly mounted on the body instead of the base.

The electric tool includes an angle grinder, a polisher, a cutter, a circular saw, a multifunctional machine, a pruner, a mower, a chain saw, and the like.

In addition to the preferred embodiments described above, other embodiments of the present utility model are also contemplated as falling within the scope of the claimed utility model, as well as all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model.

Claims (10)

1. An operating mechanism of an electric tool, comprising a base, a switch (100), a trigger (110) rotatably mounted on the base, and a button (120) slidably mounted on the base, the trigger (110) having an initial position away from the switch (100) and a trigger position for triggering the switch (100), the trigger (110) having a pressing stroke for being pressed from the initial position to the trigger position, characterized in that the button (120) comprises a first locking portion (121) and a second locking portion (122) provided at intervals in a sliding direction thereof, the button (120) having a first locking position and a second locking position, the button (120) being located at the first locking position and being abutted against the trigger (110) by the first locking portion (121) to lock the trigger (110) at the initial position, the button (120) being located at the second locking position, the trigger (110) being rotatable from the initial position to the trigger position, the button (120) locking the trigger (110) at the trigger position by the second locking portion (122).

2. The operating mechanism of a power tool according to claim 1, wherein the trigger (110) is rotatably mounted on the base by a rotation shaft, the sliding direction of the button (120) is the same as the axial direction of the rotation shaft, and the button (120) is located between the trigger (110) and the switch (100).

3. The operating mechanism of a power tool according to claim 1 or 2, wherein the first locking portion (121) is a limit rib (1211) formed by extending a button (120) in a protruding manner toward the trigger (110), and the button (120) is located at the first locking position and abuts against the trigger (110) through the limit rib (1211) to lock the button in the initial position.

4. An operating mechanism for a power tool according to claim 3, wherein the trigger (110) is provided with a support rib (111) formed by protruding and extending in a direction toward the button (120), and the trigger (110) abuts against the stopper rib (1211) via the support rib (111) when the button (120) is in the first locking position.

5. The operating mechanism of a power tool according to claim 4, wherein the button (120) further comprises an avoidance space (123) located at one side of the limit rib (1211), the avoidance space (123) and the limit rib (1211) are arranged along an axial direction of the button (120), and the avoidance space (123) is located on a pressing stroke to avoid the support rib (111).

6. The operating mechanism of a power tool according to claim 1, wherein the trigger (110) is provided with a hook (112), the second locking portion (122) includes a first engagement portion (1221) extending in a direction perpendicular to a pressing stroke of the trigger (110) and a second engagement portion (1222) extending in a sliding direction of the vertical button (120), and by pressing the button (120), a surface of the hook (112) is abutted with the first engagement portion (1221) to restrict rotation of the trigger (110), and a surface of the hook (112) is abutted with the second engagement portion (1222) to restrict sliding of the button (120).

7. The operating mechanism of a power tool according to claim 1, wherein a first elastic member (130) is further disposed between the trigger (110) and the base, the first elastic member (130) provides a force for returning the trigger (110) to the initial position, and a second elastic member (140) is further disposed between the button (120) and the base, and the second elastic member (140) provides a force for returning the button (120) to the first position.

8. The operating mechanism of an electric tool according to claim 1, wherein the trigger (110) is provided with a supporting rib (111) formed by protruding and extending towards the direction of the button (120), the supporting rib (111) is provided with a limiting groove (114) and a limiting hole (115) extending along the rotation direction of the trigger (110), the limiting groove (114) and the limiting hole (115) are radially communicated through a connecting section (116), the position of the supporting rib (111) at the connecting section (116) is provided with a limiting step (117), the sizes of the first locking part (121) and the second locking part (122) are larger than the width of the connecting section (116), the first locking part (121) can be abutted with the limiting step (117) to lock the trigger (110) at an initial position, and the second locking part (122) can be clamped into the limiting hole (115) to lock the trigger (110) at a triggering position.

9. An electric tool, characterized by comprising a body and a controller (220) provided on the body, an electronic component (230) and an operating mechanism of the electric tool according to any one of claims 1 to 8, wherein the controller (220) is simultaneously in signal connection with the switch (100) and the electronic component (230).

10. The power tool according to claim 9, wherein the body includes a handle portion (200) and a housing portion (210) located at a rear side of the handle portion (200), the operating mechanism being located at the handle portion (200)

And a housing part (210), the electronic assembly (230) and the switch (100) being mounted in the handle part (200),

The controller (220) is mounted within the housing portion (210).