CN217453808U - Electric tool - Google Patents

Abstract

The utility model discloses an electric tool, comprising: an output piece, which is used to form a drive connection with a working accessory; a casing, comprising a holding part formed around a accommodating cavity, and a joint part detachably combined with an energy device; a motor , for driving the output piece, the motor is at least partially located in the accommodating cavity; it is characterized in that, the power tool further comprises: a locking piece, which has a locking state that makes the working attachment fixed relative to the output piece, and allows the working attachment to be able to be locked relative to the output piece The disassembled release state; the housing further includes: an installation part, the installation part is formed with an installation groove, and the installation groove is detachably installed at least part of the auxiliary tool; the energy device has an installed state, and in the installed state, at least part of the energy device is located in the auxiliary tool from the auxiliary tool. On the moving path when the mounting slot is removed. The electric tool of the utility model has a simple and compact structure, is convenient and quick to use, and has high safety.

Description

electrical tools

technical field

The utility model relates to a power tool, in particular to an electric tool.

Background technique

Existing power tools, such as drywall cutters, typically operate by holding work attachments with locking pieces. When the user disassembles or installs the working accessory, an auxiliary tool is required to unlock the locking member, so as to realize the clamping or releasing of the working accessory. A disadvantage of many power tools is that when the user needs to remove the work attachment, it is difficult for the user to quickly and accurately find the auxiliary tool that matches the work attachment. When users work outdoors or at heights, they may also be unable to replace work accessories due to forgetting to carry assistive tools. Even if the user carries the auxiliary tool, it is easy to place the auxiliary tool after use, resulting in the accidental loss of the auxiliary tool.

Utility model content

In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide an electric tool with a compact, simple structure, convenient and quick use, and high safety.

In order to achieve the above-mentioned goals, the utility model adopts the following technical scheme:

The utility model provides an electric tool, comprising: an output part, which is used to form a transmission connection with a working accessory; a casing, comprising a holding part formed around a accommodating cavity, and a joint part detachably combined with an energy device; a motor , for driving the output piece, the motor is at least partially located in the accommodating cavity; it is characterized in that, the power tool further comprises: a locking piece, which has a locking state that makes the working attachment fixed relative to the output piece, and allows the working attachment to be able to be locked relative to the output piece The disassembled release state; the housing further includes: an installation part, the installation part is formed with an installation groove, and the installation groove is detachably installed at least part of the auxiliary tool; the energy device has an installed state, and in the installed state, at least part of the energy device is located in the auxiliary tool from the auxiliary tool. On the moving path when the mounting slot is removed.

In some embodiments, the mounting groove is at least partially disposed in the receiving cavity.

In some embodiments, the energy device includes a casing, and the casing includes a limit portion, and in an installed state, the limit portion prevents the auxiliary tool from being detached from the installation slot.

In some embodiments, the power tool is a DC power tool, the energy device is used to provide a power source for the DC power tool, and the energy device is a battery pack.

In some embodiments, the power tool further includes: when the auxiliary tool is installed in the installation groove, a limiting mechanism for constraining the auxiliary tool in the installation groove.

In some embodiments, the joint portion is formed with a guide structure for guiding the battery pack toward and away from the joint portion, and the energy device is arranged to be mounted to the joint portion along the first linear direction.

In some embodiments, the auxiliary tool is coupled to the installation groove substantially along the second straight line, and the included angle between the first straight line and the second straight line is greater than or equal to 0 degrees and less than or equal to 90 degrees.

In some embodiments, an included angle between a straight line in which the length direction of the installation groove is located and the first straight line is greater than or equal to 0 degrees and less than or equal to 90 degrees.

In some embodiments, the power tool is a drywall cutter, trimmer or bakelite, the auxiliary tool is a wrench, and the work attachment is a milling cutter.

The utility model also provides an electric power tool, comprising: an output piece for forming a drive connection with a working accessory; a casing, comprising a holding part formed around an accommodating cavity, and a joint part detachably combined with the energy device; The motor is used for driving the output member, the motor is at least partially located in the accommodating cavity; it is characterized in that the power tool further comprises: a locking member having a locking state for fixing the working attachment relative to the output member, and allowing the working attachment to be able to be relative to the output member A disassembled release state; an auxiliary tool including a drive part for driving the locking piece to switch between the lock state and the release state, and an operation part for the user to operate; the housing further includes: an installation part formed with a detachable receiving part At least part of the installation groove of the auxiliary tool; the energy device has an installed state, and in the installed state, the energy device prevents the auxiliary tool from leaving the installation groove.

In some embodiments, the mounting groove is at least partially disposed in the receiving cavity.

In some embodiments, the auxiliary tool is coupled to the installation groove substantially along the second linear direction, the gripping portion extends substantially along the third linear direction, and the included angle between the second straight line and the third straight line is greater than or equal to 0 degrees and less than or equal to 90 degrees Spend.

In some embodiments, the included angle between the straight line where the length direction of the installation groove is located and the third straight line is greater than or equal to 0 degrees and less than or equal to 90 degrees.

The utility model also provides an electric power tool, comprising: an output piece for forming a drive connection with a working accessory; a casing, comprising a holding part formed around an accommodating cavity, and a joint part detachably combined with the energy device; The motor is used for driving the output member, the motor is at least partially located in the accommodating cavity; it is characterized in that the power tool further comprises: a locking member having a locking state for fixing the working attachment relative to the output member, and allowing the working attachment to be able to be relative to the output member The disassembled release state; the housing further includes: an installation part, the installation part is formed with an installation groove, and the installation groove is detachably installed at least part of the auxiliary tool; the energy device has an installed state, and in the installed state, the energy device prevents the auxiliary tool from dismounting groove.

In some embodiments, the mounting groove is at least partially disposed in the receiving cavity.

The utility model has the advantages that: at least part of the auxiliary tools are detachably installed in the installation groove, when the energy device is in the installed state, the user cannot remove the auxiliary tools, which is convenient for the user to use and improves the safety, and the structure of the electric tool Simple and compact.

Description of drawings

FIG. 1 is a plan view of a power tool according to an embodiment of the present invention.

FIG. 2 is a perspective view of the power tool in FIG. 1 .

FIG. 3 is a longitudinal cross-sectional view of the power tool in FIG. 1 .

FIG. 4 is an exploded view of a part of the structure of the power tool in FIG. 1 .

FIG. 5 is an exploded view of the power tool in FIG. 1 when the auxiliary tool, the energy device and the host are separated.

FIG. 6 is a perspective view of a partial structure of the power tool in FIG. 1 .

FIG. 7 is a plan view of a partial structure of the power tool in FIG. 1 .

FIG. 8 is a perspective view of the energy device of FIG. 5 .

FIG. 9 is a perspective view of the main unit in FIG. 5 at an angle.

FIG. 10 is a longitudinal cross-sectional view of a partial structure of the power tool in FIG. 1 .

FIG. 11 is a longitudinal cross-sectional view of a partial structure of the power tool in FIG. 1 .

FIG. 12 is a perspective view of the auxiliary tool of FIG. 5 at an angle.

Detailed ways

The present utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

The power tool 100 shown in FIG. 1 is used for a user to cut, engrave, or make grooves on a wall or a workpiece. Specifically, the user operates the power tool 100 to cut a slot on the wall or the workpiece according to a certain trajectory through the working accessory 110 installed on the power tool 100, and the slot can be used to install the switch of the electrical appliance. The power tool 100 can also engrave patterns and precise cuts on the wall or workpiece through the working attachment 110 . In this embodiment, the wall surface or the workpiece includes drywall gypsum board, wood, etc., and the power tool 100 is a drywall cutter, a trimmer or a bakelite.

As shown in FIG. 2 , the power tool 100 includes: a main body 100a. In this embodiment, the power tool 100 is a DC power tool. The power tool 100 is connected to an energy device 400 , the energy device 400 is used to provide a power source for the power tool 100 , and the energy device 400 is a battery pack. As shown in FIG. 3 , the host 100 a includes: an output member 11 , a casing 20 and a motor 12 . The output element 11 forms a drive connection with the working attachment 110 . The motor 12 drives the output member 11 to move. The motor 12 is a motor 12a, and the motor 12a drives the output member 11 to rotate around the first axis 105 . The output member 11 drives the work attachment 110 to rotate to work on the wall or workpiece. As shown in FIGS. 3 to 4 , the power tool 100 further includes a locking member 13 and a clamping member 14 , and the locking member 13 mounts the working accessory 110 to the output member 11 through the clamping member 14 . The lock piece 13 has a locked state and a released state. The clamping member 14 includes clamping portions 141 arranged in sequence around the circumferential direction of the first axis 105 , and the clamping portions 141 are formed around a mounting hole 142 for the working accessory 110 to pass through. When the locking member 13 is in the locked state, the locking member 13 drives the clamping portion 141 to tighten toward the direction close to the first axis 105 , the mounting hole 142 is reduced, and the working attachment 110 is fixed relative to the output member 11 . When the locking member 13 is in the locked state, the locking member 13 allows the clamping portion 141 to be released away from the first axis 105 , the mounting hole 142 is enlarged at this time, and the working attachment 110 can be disassembled relative to the output member 11 .

In this embodiment, the locking member 13 is a moving member that can move relative to the output member 11 , and the locking member 13 can move to the first position and the second position relative to the output member 11 . When the locking member 13 is in the first position, the locking member 13 is in a locked state in which the working attachment 110 is fixed relative to the output member 11 . When the locking member 13 is in the second position, the locking member 13 is in a released state enabling the work attachment 110 to be detached by the user. When the locking member 13 is in the locked state, the working attachment 110 is clamped by the clamping member 14 to be fixed relative to the output member 11 , or the working attachment 110 can be directly locked by the locking member 13 , or the working attachment 110 can also be outputted Piece 11 locks itself. Specifically, in this embodiment, the locking member 13 is a movable sleeve. It can be understood that the locking member 13 can also be a hexagonal nut or a nut of other specifications. The locking member 13 is sleeved on the output member 11 , and the locking member 13 can rotate relative to the output member 11 . The inner wall 131 of the locking member 13 is formed with external threads, and the outer wall 111 of the output member 11 is formed with external threads. When the locking member 13 is rotated relative to the output member 11 through the thread, the locking member 13 simultaneously moves relative to the output member 11 along the first axis 105 . The locking member 13 includes a biasing portion 132 , and the clamping member 14 includes a force receiving portion 143 . When the user turns the locking member 13 clockwise, the biasing part 132 drives the force receiving part 143 , so that the clamping part 141 contracts to clamp the working attachment 110 . When the user rotates the locking member 13 counterclockwise, the biasing part 132 releases the force-receiving part 143 , so that the clamping part 141 is loosened to release the working attachment 110 , and the user can take the working attachment 110 out of the mounting hole 142 . In this embodiment, the working attachment 110 is a milling cutter.

As shown in FIGS. 5 to 7 , the power tool 100 further includes an auxiliary tool 15 . The auxiliary tool 15 includes a driving part 151 and an operating part 152 . The driving part 151 is used for driving the locking member 13 to switch between the locked state and the released state, and the operating part 152 is used for the user to operate the auxiliary tool 15 . The user can hold the operation part 152 by hand, cooperate the driving part 151 with the locking member 13, and then apply a certain force to rotate the locking member 13 clockwise or counterclockwise relative to the output member 11 to replace the working accessory 110. The auxiliary tool 15 is detachable relative to the power tool 100 . When the user needs to replace the working attachment 110 , the user can detach the auxiliary tool 15 from the power tool 100 , so as to use the auxiliary tool 15 to rotate the locking member. After the user uses the auxiliary tool 15 to replace the working attachment 110 , the user can re-install the auxiliary tool 15 on the power tool 100 . On the one hand, the user can use the auxiliary tool 15 anytime and anywhere, and on the other hand, the auxiliary tool 15 can be installed on the power tool 100 to avoid the situation that the auxiliary tool 15 is lost or difficult to be found by the user. In other embodiments, the auxiliary tool 15 may also exist independently of the power tool 100 . In other embodiments, the auxiliary tool 15 may be stored in a tool holder connected to the housing 20 and suspended from the power tool 100 by the tool holder. The auxiliary tool 15 can also be adsorbed on the power tool 100 through a magnet, or the auxiliary tool 15 can also be adsorbed on a magnetic tool holder.

The housing 20 includes: a holding part 21 , a combining part 22 and a mounting part 23 . The holding part 21 is for the user to hold, and a receiving cavity 211 is formed around the holding part 21 . The motor 12 is at least partially located in the accommodating cavity 211 . The coupling portion 22 is detachably coupled to the energy device 400 . The mounting portion 23 is formed with a mounting groove 30 , the mounting groove 30 detachably accommodates at least part of the auxiliary tool 15 , and the mounting groove 30 is at least partially disposed in the accommodating cavity 211 . In this embodiment, the installation part 23 includes an operation window 231 , and the operation window 231 is used to expose the operation part 152 , so that the user can easily disassemble the auxiliary tool 15 through the operation part 152 . The installation slot 30 removably accommodates at least part of the auxiliary tool 15 , so that the auxiliary tool 15 is not easily lost, the user can use the auxiliary tool 15 anytime and anywhere, and can easily and quickly take the auxiliary tool 15 to disassemble the working accessory 110 . The storage of the auxiliary tool 15 utilizes the space of the accommodating cavity 211 of the grip portion 21 , so that the power tool 100 has a compact and simple structure and low production cost, which is favorable for mass production. At least part of the mounting groove 30 is provided in the accommodating cavity 211 of the gripping portion 21 , so that the space in the gripping portion 21 can be fully utilized, and the size of the gripping portion 21 is not increased, and the protrusion of the gripping portion 21 is avoided. The problem that the user is uncomfortable holding is caused. In this embodiment, the gripping portion 21 basically extends in the direction of the third straight line 103 , the coupling portion 22 is disposed at one end of the gripping portion 21 , and the size of the coupling portion 22 in the direction perpendicular to the third straight line 103 relative to the gripping portion 21 is larger than that of the gripping portion 21 . big. In this way, when the housing 20 extends from the gripping part 21 to the combining part 22, the size of the area between the gripping part 21 and the combining part 22 will gradually increase, and the size of the area can be increased without excessively increasing the size of the housing 20 It is fully utilized to set the installation slot 30 , thereby improving the utilization rate of the space in the housing 20 . An accommodating cavity 211 is formed around the holding portion 21 , and the installation groove 30 is at least partially disposed in the accommodating cavity 211 , which is beneficial for the installation groove 30 to accommodate the auxiliary tool 15 with a longer length, thereby increasing the torque. In this way, the user can use the auxiliary tool 15 to switch the state of the locking member 13 to disassemble the work attachment 110 with less effort.

As shown in FIG. 3 , the power tool 100 also includes a circuit board assembly 16 and a switch 17 for controlling the start and stop of the power tool 100 . In the direction of the third straight line 103, the output member 11, the motor 12a, the circuit board assembly 16, the switch 17 and the energy device 400 are arranged in sequence. The third straight line 103 is parallel to the first plane 104 . The projection of the circuit board assembly 16 on the first plane 104 at least partially overlaps the projection of the mounting slot 30 on the first plane 104 in the direction of the third straight line 103 .

The energy device 400 has an installed state, and in the installed state, the energy device 400 is located on the moving path when the auxiliary tool 15 is detached from the installation groove 30 . The power source device 400 is located on the moving path of the auxiliary tool 15 when the auxiliary tool 15 is removed from the installation groove 30 in the installed state, so that the power source device 400 interferes with the moving path of the auxiliary tool 15 . That is to say, when the energy device 400 is in the installed state, the energy device 400 blocks the movement of the auxiliary tool 15, and the user cannot disassemble the auxiliary tool 15 to replace the working accessory 110, which reduces the risk of electric shock for the user. In the installed state, the power source device 400 prevents the auxiliary tool 15 from disengaging from the installation slot 30 . In this way, the user can take out the auxiliary tool 15 from the installation slot 30 only when the energy device 400 is not in the installed state, which enhances the safety of the power tool 100 . As shown in FIGS. 5 to 9 , in this embodiment, the energy device 400 includes a housing 41 , and the housing 41 includes a limiting portion 411 . In the installed state, the stopper 411 prevents the auxiliary tool 15 from being removed from the installation groove 30 . In the installed state, the limiting portion 411 is located on the moving path when the auxiliary tool 15 is removed. When the user attempts to remove the auxiliary tool 15, the limiting portion 411 directly blocks the movement of the auxiliary tool 15, so that the user cannot continue to disassemble the auxiliary tool 15. . The housing 41 includes a limiting portion 411, and the limiting portion 411 is directly linked with the auxiliary tool 15, the structure is simple, the reliability is high, the manufacturing cost is saved, and it is favorable for mass production.

The energy device 400 includes an output terminal 42 , and the coupling portion 22 includes an input terminal 221 . When the output terminal 42 is combined with the input terminal 221 , the energy device 400 and the power tool 100 are electrically connected. The switch 17 controls the start and stop of the power tool 100 . The switch 17 has an activated state and a closed state. When the energy device 400 is in the installed state and the switch 17 is in the activated state, the energy device 400 provides power to the motor 12a, and the switch 17 controls the motor 12a to drive the working accessory 110 to rotate. On the other hand, when the energy device 400 is in the installed state, regardless of whether the switch 17 is in the activated state or the closed state, the energy device 400 prevents the auxiliary tool 15 from disengaging from the installation slot 30, thereby preventing the user from removing the auxiliary tool when the energy device 400 is in the installed state Tool 15 to replace work attachment 110 . When the power source device 400 is disassembled, the motor 12 a is not energized, and the auxiliary tool 15 is provided so as to be able to disengage from the installation slot 30 . In this way, the user can disassemble the auxiliary workpiece only when the energy device 400 is not installed, which avoids the user accidentally starting the power tool 100 when using the auxiliary tool 15 to replace the work attachment 110 , causing a safety hazard.

The joint portion 22 is formed with a guide structure 222 , and the guide structure 222 guides the energy device 400 toward and away from the joint portion 22 . In this embodiment, the guide structure 222 is a first rib structure 222 a protruding and formed on the joint portion 22 . The housing 41 of the energy device 400 is formed with a second rib structure 43, and the second rib structure 43 is used for butt joint with the first rib structure 222a. The energy device 400 also includes a buckle 44 . The buckle 44 includes a pressing part 441 and a clamping part 442 , and the pressing part 441 and the clamping part 442 form a transmission connection or are integrally formed. The joint portion 22 also includes a locking groove 223 . The clamping portion 442 is formed with an inclined surface 442 a facing the locking groove 223 . The energy device 400 can move to the installation position relative to the coupling portion 22 . When the user combines the energy device 400 with the joint portion 22 along the guide structure 222, and the first rib structure 222a and the second rib structure 43 are completely butted together, the clamping portion 442 and the locking groove 223 are locked by the inclined surface 442a, and the energy device 400 is located at the installation location. When the user presses the pressing portion 441 , the locking portion 442 is displaced as the pressing portion 441 is pressed, and the locking portion 442 is disengaged from the locking groove 223 . The energy device 400 can be disassembled by the user and away from the installation position, so that the user can disassemble the auxiliary tool 15 .

As shown in FIGS. 10 to 12 , the energy device 400 is arranged to be mounted to the joint portion 22 along the direction of the first straight line 101 . The auxiliary tool 15 is coupled to the mounting groove 30 substantially along the direction of the second straight line 102 . In some embodiments, the included angle a formed by the intersection of the first straight line 101 and the second straight line 102 is greater than or equal to 0 degrees and less than or equal to 90 degrees. The included angle b formed by the intersection of the second straight line 102 and the third straight line 103 is greater than or equal to 0 degrees and less than or equal to 90 degrees. The mounting slot 30 has a slot wall 31 , and the slot wall 31 guides the auxiliary tool 15 to be mounted to the mounting slot 30 in the direction of the second straight line 102 . In some embodiments, the included angle c between the straight line L in which the length direction of the installation groove 30 is located and the first straight line 101 is greater than or equal to 0 degrees and less than or equal to 90 degrees. The included angle d between the straight line L where the length direction of the installation groove 30 is located and the third straight line 103 is greater than or equal to 0 degrees and less than or equal to 90 degrees. The auxiliary tool 15 is a wrench 15a, which is a thin piece. The thickness of the wrench 15a is relatively thin, so that when at least part of the installation groove 30 is arranged in the holding part 21, the direction in which the auxiliary tool 15 is installed to the installation groove 30 is relatively reasonable relative to the extending direction of the holding part 21, and the The space can be fully utilized without increasing the size of the grip portion 21 in the direction perpendicular to the third straight line 103 . Optionally, the shape of the wrench 15a can be roughly set as a rectangle, a parallelogram, etc. according to requirements. As shown in FIG. 12 , the shape of the wrench 15a can also be set as an I-shape with larger size at both ends and smaller size in the middle. In this embodiment, the wrench 15a includes a first end 15b configured to be able to screw the locking member 13, and a second end 15c configured to be able to engage with the energy device 400, and the first end 15b and the second end The side wall surfaces of the portion 15c are all arc surfaces. In this embodiment, the second end portion 15c is tilted relative to the wrench 15a, so that it is convenient for the user to pinch the second end portion 15c by hand to remove the wrench 15a from the installation groove 30 . In other embodiments, the auxiliary tool 15 can also be taken out from the installation slot 30 by providing a pop-up mechanism or a pull cord.

For convenience of description, in this embodiment, the up-down direction and the left-right direction as shown in FIG. 2 are set. It should be noted that the installation of the energy device 400 to the joint portion 22 along the direction of the first straight line 101 does not limit the specific position of the first straight line 101 , nor does it limit the horizontal, vertical or horizontal direction of the energy device 400 along the direction of the first straight line 101 . It is attached to the joint portion 22 obliquely. The auxiliary tool 15 is basically coupled to the installation groove 30 along the second straight line 102 direction, and does not limit the auxiliary tool 15 to be coupled to the installation groove 30 in an upward, downward, leftward, rightward or oblique direction along the second straight line 102 direction.

As shown in FIG. 5 , the casing 20 includes a first casing 24 and a second casing 25 . The first case 24 and the second case 25 are connected by screws, and the first case 24 and the second case 25 can be separated. In this embodiment, the volume of the installation groove 30 disposed on the side of the first casing 24 is substantially the same as the volume of the installation groove 30 disposed on the side of the second casing 25 . As shown in FIG. 6 to FIG. 7 , the power tool 100 further includes: a limit mechanism 18 , and the limit mechanism 18 limits the auxiliary tool 15 in the installation groove 30 . The mounting slot 30 has a slot 32 for inserting the auxiliary tool 15 into the mounting slot 30 . When the auxiliary tool 15 is inserted into the installation slot 30 along the direction of the second straight line 102 , the limiting mechanism 18 restricts the auxiliary tool 15 to prevent the auxiliary tool 15 from deviating from the direction of the second straight line 102 . The limiting mechanism 18 also prevents the auxiliary tool 15 from leaving the installation slot 30 due to factors such as gravity, vibration and the like when the auxiliary tool 15 is not under the force of the user. In this embodiment, the limiting mechanism 18 is a rubber column mechanism 18 a, and the rubber column mechanism 18 a is fixedly arranged in the installation groove 30 . When the user fully inserts the auxiliary tool 15 into the installation groove 30, the auxiliary tool 15 deforms the rubber column mechanism 18a. At this time, the biasing force of the rubber column mechanism 18a to the auxiliary tool 15 is greater than the gravity of the auxiliary tool 15, and the auxiliary tool 15 is in Will not fall when not under the force of the user. The limiting mechanism 18 may also be a magnet mechanism, an elastic steel mechanism, or the like, which is not limited herein. The installation groove 30 has a groove bottom 33 , and the groove bottom 33 is disposed opposite to the groove opening 32 . In this embodiment, the notch 32 matches the short side of the auxiliary tool 15 . The groove bottom 33 is provided with a through hole 331 extending to the outside of the casing 20 , and dust or dust falling into the installation groove 30 is discharged to the outside of the casing 20 through the through hole 331 . In this way, when the user installs the auxiliary tool 15 into the installation groove 30 , the dust or dust in the installation groove 30 can be pushed out of the casing 20 by the auxiliary tool 15 through the through hole 331 , thereby enhancing the cleanliness of the interior of the casing 20 , to avoid accumulation of dust or dust in the installation groove 30 . In other embodiments, the auxiliary tool 15 can also be coupled to the installation slot 30 from right to left. In this case, the slot 32 is a right longitudinal opening to match the long side of the auxiliary tool 15. The second straight line 102 is connected to the third straight line 102. Line 103 is vertical.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the above-mentioned embodiments do not limit the present invention in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation all fall within the protection scope of the present invention.

Claims (15)

1. A power tool, comprising:

the output piece is used for forming transmission connection with the working accessory;

a housing including a grip portion around which an accommodation chamber is formed, and a coupling portion to which an energy device is detachably coupled;

a motor for driving the output member, the motor being at least partially located within the receiving cavity;

characterized in that, the electric tool still includes:

a lock having a locked state in which the work attachment is fixed relative to the output, and a released state in which the work attachment is allowed to be removed relative to the output;

the housing further includes:

a mounting part formed with a mounting groove to which at least a part of an auxiliary tool is detachably mounted;

the power source device has an installation state in which at least a part of the power source device is located on a moving path of the auxiliary tool when the auxiliary tool is detached from the installation groove.

2. The power tool of claim 1, wherein: the mounting groove is at least partially disposed in the receiving cavity.

3. The power tool of claim 1, wherein: the power source device includes a housing including a stopper portion that prevents the auxiliary tool from being detached from the mounting groove in the mounted state.

4. The power tool of claim 1, wherein: the electric tool is a direct current electric tool, the energy device is used for providing a power source for the direct current electric tool, and the energy device is a battery pack.

5. The power tool of claim 1, further comprising: and the limiting mechanism limits the auxiliary tool in the mounting groove when the auxiliary tool is mounted in the mounting groove.

6. The power tool of claim 1, wherein: the coupling portion is formed with a guide structure that guides the energy source device closer to and farther from the coupling portion, the energy source device being provided to be mounted to the coupling portion in a first linear direction.

7. The power tool of claim 6, wherein: the auxiliary tool is combined to the mounting groove basically along a second straight line direction, and the included angle between the first straight line and the second straight line is greater than or equal to 0 degree and smaller than or equal to 90 degrees.

8. The power tool of claim 6, wherein: the included angle between the straight line of the length direction of the mounting groove and the first straight line is greater than or equal to 0 degree and less than or equal to 90 degrees.

9. The power tool according to any one of claims 1 to 8, wherein: the electric tool is a dry wall cutting machine, an edge trimmer or an electric wood milling machine, the auxiliary tool is a wrench, and the working accessory is a milling cutter.

10. A power tool, comprising:

the output piece is used for forming transmission connection with the working accessory;

a housing including a grip portion around which an accommodation chamber is formed, and a coupling portion to which an energy device is detachably coupled;

a motor for driving the output member, the motor being at least partially located within the receiving cavity;

characterized in that, the electric tool still includes:

a lock having a locked state in which the work attachment is fixed relative to the output, and a released state in which the work attachment is allowed to be removed relative to the output;

an auxiliary tool including a driving portion that drives the lock member to switch between the locked state and the released state, and an operating portion for a user to operate;

the housing further includes:

a mounting part formed with a mounting groove to detachably receive at least a part of the auxiliary tool;

the energy source device has an installation state in which the energy source device prevents the auxiliary tool from escaping from the installation groove.

11. The power tool of claim 10, wherein: the mounting groove is at least partially disposed in the receiving cavity.

12. The power tool of claim 10, wherein: the auxiliary tool is combined to the mounting groove basically along a second straight line direction, the holding part basically extends along a third straight line direction, and the included angle between the second straight line and the third straight line is greater than or equal to 0 degree and smaller than or equal to 90 degrees.

13. The power tool of claim 10, wherein: and the included angle between the straight line of the length direction of the mounting groove and the third straight line is more than or equal to 0 degree and less than or equal to 90 degrees.

14. A power tool, comprising:

the output piece is used for forming transmission connection with the working accessory;

a housing including a grip portion around which an accommodation chamber is formed, and a coupling portion to which an energy device is detachably coupled;

a motor for driving the output member, the motor being at least partially located within the receiving cavity;

characterized in that, the electric tool still includes:

a lock having a locked state in which the work attachment is fixed relative to the output, and a released state in which the work attachment is allowed to be removed relative to the output;

the housing further includes:

a mounting part formed with a mounting groove to which at least a part of an auxiliary tool is detachably mounted;

the energy source device has an installation state in which the energy source device prevents the auxiliary tool from escaping from the installation groove.

15. The power tool of claim 14, wherein: the mounting groove is at least partially disposed in the receiving cavity.

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