CN212265734U

CN212265734U - Locking mechanism and electric tool with same

Info

Publication number: CN212265734U
Application number: CN202020120299.5U
Authority: CN
Inventors: 陈英杰; 沈刚毅
Original assignee: 陈英杰
Current assignee: Zhejiang Ruichuan Tools Co.,Ltd.
Priority date: 2019-11-28
Filing date: 2020-01-19
Publication date: 2021-01-01
Anticipated expiration: 2030-01-19
Also published as: CN111136621A

Abstract

The utility model discloses a locking mechanism for opening and/or being closed of control instrument, include: a trigger unit disposed in the housing; and the operation unit is connected with the trigger unit, and any position of the operation unit is pressed to drive the trigger unit to be opened. The utility model provides a locking mechanism and electric tool, after the optional position pressurized through the operating unit, can drive opening of trigger unit, realize opening electric tool operating condition, easy operation provides work efficiency greatly.

Description

Locking mechanism and electric tool with same

Technical Field

The utility model relates to an instrument field especially relates to a locking mechanism and be equipped with this locking mechanism's electric tool.

Background

Electric tools, such as grinding or polishing machines, are indispensable tools in human life. The electric tool is a tool which works through electric drive of a motor and the like, the electric tool controls the switching between the working state and the non-working state of the electric tool through the switch, the existing electric tool is very inconvenient to use due to the fact that the switch structure of the existing electric tool is arranged, the fixed position of the switch structure is required to be pressed, and the electric tool can be started by pressing the switch structure to any position of the switch structure, and the electric tool is very important.

Disclosure of Invention

The utility model discloses not enough to among the prior art, provide a locking mechanism and electric tool, after the optional position pressurized through the operating unit, can drive opening of trigger unit, realize opening electric tool operating condition, easy operation provides work efficiency greatly.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a locking mechanism for controlling the opening and/or closing of a tool, comprising:

a trigger unit disposed in the housing;

and the operation unit is connected with the trigger unit, and any position of the operation unit is pressed to drive the trigger unit to be opened.

Preferably, the operation unit includes:

the first operation structure is connected with the trigger unit;

and the second operation structure is connected with the first operation structure and is provided with a pressing operation surface, and the second operation structure can extrude the trigger end of the trigger unit through the first operation structure after the pressing operation surface is pressed at any position.

Preferably, one end of the first operating structure is set as a rotating end, and is set to be rotationally connected with the housing unit through the rotating end, and the other end of the first operating structure is provided with a driving end, which is used for being connected with the triggering end of the triggering unit.

Preferably, the first operating structure is provided with at least one first resetting end, the first resetting end is arranged close to the rotating end, and the first resetting end is connected with the second operating structure through a first resetting piece.

Preferably, the first operating structure is provided with at least one second reset end, the second reset end is arranged close to the driving end, and the second reset end is connected with the second operating structure through a second reset piece.

Preferably, the first operating structure is further provided with a limiting structure for limiting a movement path of the driving end when the driving end moves along the direction of the trigger unit.

Preferably, the stop formation is arranged in rotatable connection with the housing, the stop formation being located adjacent the drive end.

Preferably, the second operation structure is provided with a guide unit, and after any position of the pressing operation surface is pressed, the second operation structure performs relative movement along the housing through the guide unit.

Preferably, the guide unit includes:

a guide disposed on the second operating structure;

and the guide channel is arranged on the shell and used for guiding the guide piece when the second operation structure moves.

Preferably, the guide member is provided along an end portion of the second operating structure as a projection structure extending from the end portion.

Preferably, the second operating structure is provided with a pressing member, and the pressing member presses the pressing end face of the first operating structure after the pressing operating face is pressed at any position.

Preferably, the second operating structure is provided with a receiving space for partially wrapping the first operating structure.

Preferably, the pressing member is formed to extend along an inner wall of the second operation structure and is located in the accommodating space.

Preferably, the outer end face of the second operation structure is configured as the pressing operation face.

A power tool, comprising:

a housing assembly;

a drive mechanism disposed within the housing assembly;

the working component is connected with the driving mechanism and is used for the operation of products;

the locking mechanism is arranged on the shell assembly and used for controlling the starting and stopping of the driving mechanism.

Preferably, a mounting cavity is provided below the housing assembly, the locking mechanism is mounted in the mounting cavity, and the second operation structure part of the locking mechanism is located outside the housing assembly.

Preferably, still include heat dissipation mechanism for to electric tool's heat dissipation, heat dissipation mechanism includes radiator unit and eccentric block subassembly, eccentric block subassembly sets up structure as an organic whole with radiator unit.

Preferably, still include heat dissipation mechanism for to electric tool's heat dissipation, heat dissipation mechanism includes radiator unit and eccentric block subassembly, eccentric block subassembly and radiator unit set up to components of a whole that can function independently structure.

The utility model discloses gain following beneficial effect:

the utility model discloses a locking mechanism is used in for example instruments such as electric tool, other when for example having on the product that opens and the closure switches over, through pressing the optional position of pressing the operation face makes behind the pressing the operation face, can drive opening of trigger unit, realizes opening to product operating condition such as instrument class, easy operation, and the good reliability provides work efficiency greatly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of a locking mechanism of the present invention;

fig. 2 is a schematic structural diagram of a third embodiment of a locking mechanism of the present invention;

fig. 3 is a schematic structural diagram of a fourth embodiment of a locking mechanism of the present invention;

FIG. 4 is a schematic structural diagram of a first exemplary operating structure of the present invention;

FIG. 5 is a schematic structural diagram of a second exemplary operating structure of the present invention;

fig. 6 is a schematic structural diagram of an embodiment of the housing unit of the present invention;

fig. 7 is a schematic structural view of an embodiment of an electric tool according to the present invention;

fig. 8 is a schematic structural view of an embodiment of the heat dissipation mechanism of the present invention.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As an embodiment of the present invention, as shown in fig. 1 to 6, a locking mechanism 500 is used to control the opening and/or closing of the tool, when the locking mechanism 500 opens the tool, the tool can be in the working state, and when the tool does not need to be in the working state, the locking mechanism 500 locks the tool. The locking mechanism 500 of the present embodiment includes a trigger unit 1 and an operation unit 2, wherein the trigger unit 1 is disposed in the housing unit 100 and electrically connected to a control unit of a product to control the product such as a tool; the operation unit 2 is used to connect with the trigger unit 1, and in this embodiment, after any position of the operation unit 2 is pressed, the operation unit 2 can drive the trigger unit 1 to open, so that the tool can perform work.

According to the embodiment of the present invention, the operation unit 2 corresponds to a button portion of the switch structure, and when the button portion is pressed to the trigger unit 1 to move, the locking mechanism 500 is implemented; in the absence of external force, the trigger unit 1 maintains its initial state, the locking mechanism 500 is in a locked state, the tool is in an inoperative state, and when external force acts on the operating unit 2, the trigger unit 1 follows up, and the locking mechanism 500 is in an open state. The operation unit 2 of the present embodiment includes a first operation structure 21 and a second operation structure 22, wherein the first operation structure 21 is directly connected to the trigger unit 1, the second operation structure 22 is connected to the first operation structure 21, the second operation structure 22 of the present embodiment has a pressing operation surface 23, which is convenient for an operator to operate, and after the operator applies a force to any position of the pressing operation surface 23, the pressing operation surface 23 is pressed to press the trigger end 11 of the trigger unit 1 through the first operation structure 21, so as to achieve an open state of the locking mechanism 500, the pressing operation surface 23 of the present embodiment, on which a tool can perform work, may be preferably configured by an outer end surface of the second operation structure 22, that is, when the force is applied to an outer end surface of the second operation structure 22, and after the pressing operation surface 23 is pressed, the trigger unit 1 may be started.

According to the embodiment of the present invention, one end of the first operation structure 21 is set as a rotation end 211, and is set to be rotatably connected with the housing unit 100 (or called as the housing assembly 100) through the rotation end 211, and the rotation end 211 can be connected through a rotation shaft or a pin shaft, or other connection units suitable for connection, and any connection unit capable of facilitating the rotation of the first operation structure 21 is suitable for the setting of the rotation end 211; the other end of the first operating structure 21 is provided with a driving end 212 for connecting with the triggering end 11 of the triggering unit 1, and as shown in the figure, the driving end 212 is provided with a connecting groove 213, and the end of the triggering end 11 is located in the connecting groove 213, so as to limit the triggering end 11, effectively prevent the deviation of the movement path of the triggering end 11 when the triggering end is driven, and on the other hand, improve the reliability of the connection between the driving end 212 and the triggering end 11.

According to the embodiment of the present invention, the first operation structure 21 is provided with a first reset end 214, the first reset end 214 can be provided with one or more than one, the first reset end 214 of the embodiment is provided near the rotation end 211, the first reset end 214 is a boss formed by extending from the body of the first operation structure 21, the first reset piece 3 is provided between the first operation structure 21 and the second operation structure 22, one end of the first reset piece 3 is connected to the first reset end 214, which may be fitted over the first reset end 214, the first reset member 3 of the present embodiment may preferably be a pressure spring having an elastic structure, when the operation unit 2 is pressed to move, the first restoring member 3 is in a compressed state, and when the force applied to the operating unit 2 is released, the first operating mechanism 21 is automatically restored by the force released from the first restoring member 3, and is restored to a state in which the locking mechanism 500 is locked or closed. Similarly, in order to further improve the stability of the resetting of the first operating structure 21, the first operating structure 21 is further provided with one or more resetting terminals 215, the resetting terminal 215 of this embodiment is disposed near the driving terminal 212, the resetting terminal 215 is a boss formed by extending from the body of the second operating structure 22, a resetting member two 4 is disposed between the first operating structure 21 and the second operating structure 22, two ends of the resetting member two 4 are connected to the resetting terminal 215, may be sleeved on the second reset end 215, the second reset piece 4 of the present embodiment may preferably be a pressure spring with an elastic structure, when the operation unit 2 is pressed to move, the second reset member 4 is in a compressed state, and when the force applied to the operating unit 2 is released, the first operating mechanism 21 is automatically reset by the force released by the second reset member 4, and is reset to a state in which the locking mechanism 500 is locked or closed. The first reset terminal 214 and the first reset element 3 of this embodiment are structures that must be set, the second reset terminal 215 and the second reset element 4 of this embodiment are structures that can be set selectively, the first operation structure 21 near the driving terminal 212 may not be set with a reset unit, and the first operation structure 21 can be reset by its own stress and the acting force near the rotating terminal 211.

According to the embodiment of the present invention, still be provided with limit structure 5 on the first operation structure 21, this limit structure 5 is spacing for the first operation structure 21, when first operation structure 21 moves along trigger unit 1 direction, if this limit structure 5 is not set up, drive end 212 on the first operation structure 21 will infinitely move forward, it is difficult to realize locking and the switching of opening of locking mechanism 500 like this, even can't come opening or closing of operation tool etc. through this locking mechanism 500, so the motion path of the first operation structure 21 of this embodiment is defined through the size that drive end 212 moved the displacement, so drive end 212 limits the maximum displacement value that drive end 212 moved through this limit structure 5, also carry on spacingly to the motion path of drive end 212. In the present embodiment, the limiting structure 5 is configured to be rotatably connected to the housing, preferably, the limiting structure 5 is disposed near the driving end 212, the limiting structure 5 includes a limiting member 51 and an installation channel 52 disposed on the first operating structure 21 and the housing, and the limiting member 51 penetrates into the installation channel 52 to achieve connection between the first operating structure 21 and the housing, and at the same time, the limiting member 51 limits a movable displacement value of the first operating structure 21, so as to achieve effective resetting of the operating unit 2.

According to the utility model discloses an embodiment, be provided with guide unit 221 on the second operation structure 22, press 23 optional position pressurized backs of operation face, second operation structure 22 and first operation structure 21 carry out relative motion along the casing as whole through guide unit 221 and realize the start-up to trigger unit 1, direction when being convenient for second operation structure 22 to move, thereby this locking mechanism 500 is when being equivalent to the switch structure, the operation is sensitive, and release presses 23 backs of operation face, when second operation structure 22 resets as whole with first operation structure 21, also guide through this guide unit 221, reset with the accuracy more fast. In the present embodiment, the guiding unit 221 includes a guiding element 222 and a guiding channel 223, wherein the guiding element 222 is disposed on the second operating structure 22, as shown in the figure, the guiding element 222 is disposed along the end of the second operating structure 22 and is a protruding structure formed by extending from the end, preferably, the guiding element 222 is disposed at four corners of the second operating structure 22 along the feeding direction, and the end surface of the guiding element 222 contacting with the guiding channel 223 is disposed as a plane structure, so that the guiding channel 223 can function better; the guide passage 223 of the embodiment is disposed on the housing unit 100, and when the second operation structure 22 moves, the guide piece 222 moves along the guide passage 223, so as to perform a guiding function on one hand, and also effectively prevent the position of the second operation structure 22 from deviating and the like on the other hand, so that the second operation structure 22 is stable and accurate when moving, and the operation unit 2 is adjusted more reliably.

According to the utility model discloses an embodiment, first operation structure 21 links to each other with second operation structure 22, can set up to the contact connection, also can set up to contactless connection, can set up according to product structural characteristic, no matter contact connection or contactless connection, for realizing on second operation structure 22's atress more stable effect and first operation structure 21, through be provided with extruded article 225 on the second operation structure 22, extrude the extrusion terminal surface 216 of first operation structure 21 through this extruded article 225, promptly press operating surface 23 optional position pressurized back, this extruded article 225 extrudees extrusion terminal surface 216 to drive first operation structure 21 and move along trigger unit 1 direction. In this embodiment, it is preferable that the second operation structure 22 is provided with a receiving space 224, and the first operation structure 21 can be wholly or partially located in the receiving space 224, on one hand, the volume of the structure is reduced, so that the structure can be more compactly installed, and the first operation structure 21 can be better operated, and the receiving space 224 provided in the second operation structure 22 of this embodiment is substantially partially wrapped around the first operation structure 21, that is, the first operation structure 21 provided with the pressing end surface 216 is substantially located in the receiving space 224, and the other side of the first operation structure 21, that is, the side opposite to the pressing end surface 216 is provided with the driving end 212 and the rotating end 211 is substantially located outside the receiving space 224, so as to be better connected with the housing, and better used for driving the activation of the trigger end 11 of the trigger unit 1. In the present embodiment, the pressing member 225 is formed to extend along the inner wall of the second operation structure 22 and is located in the accommodating space 224, so when part of the structure of the first operation structure 21 is located in the accommodating space 224, when a force acts on the pressing operation surface 23, the pressing member 225 of the second operation structure 22 contacts with the pressing end surface 216, and further drives the first operation structure 21 to move along the direction of the trigger unit 1, and the structure is simple and compact.

As an embodiment of the present invention, as shown in fig. 7 and 8, an electric tool includes a housing assembly 100, a driving mechanism 200 and a working component 300, wherein the driving mechanism 200 is disposed in the housing assembly 100, the working component 300 is connected to the driving mechanism 200 for operation of a product, an operating state of the working component 300 can be adjusted by a locking mechanism 500 in the above embodiment, in this embodiment, the locking mechanism 500 is disposed on the housing assembly 100 for controlling the start and stop of the driving mechanism 200, and further controlling the switching between the operation state and the non-operation state of the electric tool. The housing assembly 100 of the present embodiment is provided with a mounting cavity below, the locking mechanism 500 is mounted in the mounting cavity, and in order to facilitate the operation of the locking mechanism 500, the second operation structure 22 of the locking mechanism 500 of the present embodiment is partially located outside the housing assembly 100, i.e. the pressing operation surface can be disposed outside the housing assembly 100, and can be flush with the outer end surface of the housing assembly 100, or can be extended to the outside of the outer end surface of the housing assembly 100, so as to facilitate the operation.

According to the utility model discloses an embodiment, electric tool still includes heat dissipation mechanism 400 for to electric tool's heat dissipation, and heat dissipation mechanism 400 includes eccentric component 401 and radiator unit 402, as shown in the figure, as an embodiment, radiator unit 402 sets up structure as an organic whole with eccentric component 401, as shown in the figure, as another embodiment, radiator unit 402 sets up to the components of a whole that can function independently structure with eccentric component 401.

As shown in fig. 1 to 7, as an embodiment of the present invention, a locking mechanism for opening and/or closing a tool includes:

the trigger structure is arranged in the shell;

and the operation structure is connected with the trigger structure, drives any position of the operation structure and can drive the trigger structure to be opened. The trigger structure is equivalent to the trigger unit in the first embodiment, and the operation structure is equivalent to the operation unit.

Preferably, operation structure includes first operation structure and second operation structure, first operation structure and second operation structure are for dismantling the connection, first operation structure realizes the switching of conflict and/or separation state with trigger structure under the atress effect, second operation structure sets up outside first operation structure, when application of force in second operation structure, can realize contradicting with first operation structure and/or the switching of separation state.

Preferably, the second operating structure is provided with a first guide element and a second guide element, and a first guide channel and a second guide channel are arranged on the corresponding shell; the first operation structure is provided with a third guide element, and a third guide channel is correspondingly arranged on the first operation structure. One end of the first operation structure is rotatably connected with the shell, and the other end of the first operation structure is provided with a first touch element used for being connected with the trigger structure. The second operating structure is connected to the first operating structure by at least one connecting unit. The second operation structure is arranged into a first operation part and a second operation part, when force is applied to any position on the first operation part, the second guide element slides along the second guide channel, the third guide element slides along the third guide channel, the first operation structure is pushed and driven to move in the direction close to the trigger structure, so that the trigger structure is driven to open the locking mechanism, the tool can be in a working state, and when the tool does not need to be in the working state, the stress on the first operation part is released; when force is applied to any position on the second operation part, the first guide element slides along the first guide channel, the third guide element slides along the third guide channel, the first operation structure is pushed and driven to move in the direction close to the trigger structure, the trigger structure is driven, the locking mechanism is unlocked, the tool can be in a working state, and when the tool does not need to be in the working state, the stress on the second operation part is released.

Preferably, the first operation structure and the second operation structure are connected through at least one connecting unit, and an elastic element is further arranged at the corresponding connecting unit and used for buffering stress of the first operation structure, so that when the first operation part or the second operation part is driven, the connection between the first operation structure and the second operation structure is more stable, and therefore when the locking mechanism is operated, the working state of the tool is more stable, and the grinding or polishing effect is good. The resilient element may be disposed within the first operative configuration.

Preferably, through pressing the optional position of this operation structure, can realize the operation of this locking mechanical system opening and/or closure, compare prior art and can only operate through pressing a certain point, easy operation provides work efficiency greatly.

Preferably, the first operating structure extends partially and is disposed externally of the first housing with respect to the first housing. And partially or fully encases the second operative structure.

Preferably, the trigger structure is electrically connected with a control unit of the tool, and the trigger structure is driven by the first operation structure and/or the second operation structure to drive the circuit connection relationship of the trigger structure, so that the locking mechanism is used, and the opening or closing of the electric tool is controlled.

Preferably, the first operation structure comprises a first operation part and a second operation part, the first operation part and the second operation part are of an integral structure and are in smooth transition connection, and the first operation structure can be pressed by applying force to any position on the first operation part or the second operation part.

An electric power tool, characterized by comprising:

a housing structure;

a control structure disposed within the housing structure;

a heat dissipation mechanism for dissipating heat of the electric tool,

and the locking mechanism is arranged on the shell structure and is used for adjusting the opening and/or closing of the electric tool.

Preferably, the heat dissipation mechanism comprises a heat dissipation assembly and an eccentric block assembly, and the eccentric block assembly is arranged into an integral structure.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. A locking mechanism for controlling the opening and/or closing of a tool, comprising:

a trigger unit disposed in the housing;

2. The lock mechanism according to claim 1, wherein the operation unit includes:

the first operation structure is connected with the trigger unit;

3. The lock mechanism of claim 2, wherein: one end of the first operation structure is set to be a rotating end and is rotationally connected with the shell unit through the rotating end, and the other end of the first operation structure is provided with a driving end and is used for being connected with the triggering end of the triggering unit.

4. The latch mechanism of claim 3, wherein said first operating structure is provided with at least one first reset terminal, said first reset terminal being disposed adjacent said pivot terminal, said first reset terminal being connected to said second operating structure via a first reset member.

5. The latch mechanism of claim 3, wherein the first operating structure has at least a second reset terminal disposed thereon, the second reset terminal being disposed adjacent the drive terminal, the second reset terminal being coupled to the second operating structure via a second reset member.

6. The locking mechanism of claim 3, wherein the first operating structure is further provided with a limiting structure for limiting a movement path of the driving end moving along the direction of the trigger unit.

7. The locking mechanism of claim 4, wherein the first operating structure is further provided with a limiting structure for limiting a movement path of the driving end moving along the direction of the trigger unit.

8. The locking mechanism of claim 5, wherein the first operating structure is further provided with a limiting structure for limiting a movement path of the driving end moving along the direction of the trigger unit.

9. The lock mechanism of claim 6, wherein the stop structure is configured to be rotatably coupled to the housing, the stop structure being disposed proximate the drive end.

10. The lock mechanism of claim 7, wherein the stop structure is configured to be rotatably coupled to the housing, the stop structure being disposed proximate the drive end.

11. The lock mechanism of claim 8, wherein the stop structure is configured to be rotatably coupled to the housing, the stop structure being disposed proximate the drive end.

12. The lock mechanism of claim 9, wherein the second operating structure is provided with a guide unit, and the second operating structure is relatively moved along the housing by the guide unit when any position of the pressing operation surface is pressed.

13. The lock mechanism of claim 10, wherein the second operating structure is provided with a guide unit, and the second operating structure is relatively moved along the housing by the guide unit when any position of the pressing surface is pressed.

14. The lock mechanism of claim 11, wherein the second operating structure is provided with a guide unit, and the second operating structure is relatively moved along the housing by the guide unit when any position of the pressing surface is pressed.

15. The lock mechanism of claim 12, wherein the guide unit comprises:

a guide disposed on the second operating structure;

16. The lock mechanism of claim 13, wherein the guide unit comprises:

a guide disposed on the second operating structure;

17. The lock mechanism of claim 14, wherein the guide unit comprises:

a guide disposed on the second operating structure;

18. The latch mechanism of claim 15 wherein the guide is disposed along the end of the second operating structure as a projection extending from the end.

19. The latch mechanism of claim 16 wherein the guide is disposed along the end of the second operating structure as a projection extending from the end.

20. The latch mechanism of claim 17 wherein the guide is disposed along the end of the second operating structure as a projection extending from the end.

21. The lock mechanism of any one of claims 2 to 20, wherein the second operating structure is provided with a pressing member which presses the pressing end surface of the first operating structure after the pressing operation surface is pressed at any position.

22. The latch mechanism of claim 21 wherein said second operating structure is provided with a receiving space for partially enclosing said first operating structure.

23. The latch mechanism of claim 22 wherein said extrusion is formed to extend along an inner wall of the second operating structure and is located within said receiving space.

24. The latch mechanism of claim 23 wherein an outer end surface of said second operating structure is configured as said push operating surface.

25. A power tool, comprising:

a housing assembly;

a drive mechanism disposed within the housing assembly;

the lock mechanism is characterized by further comprising a lock mechanism according to any one of claims 1 to 24, wherein the lock mechanism is arranged on the shell assembly and used for controlling the starting and stopping of the driving mechanism.

26. The power tool of claim 25, wherein a mounting cavity is provided below the housing assembly, the locking mechanism being mounted in the mounting cavity, the second operational feature of the locking mechanism being located externally of the housing assembly.

27. The power tool of claim 25, further comprising a heat dissipation mechanism for dissipating heat from the power tool, wherein the heat dissipation mechanism comprises a heat dissipation assembly and an eccentric block assembly, and the eccentric block assembly and the heat dissipation assembly are integrally formed.

28. The power tool of claim 25, further comprising a heat dissipation mechanism for dissipating heat from the power tool, wherein the heat dissipation mechanism comprises a heat dissipation assembly and an eccentric block assembly, and the eccentric block assembly and the heat dissipation assembly are configured as a separate structure.