Power Tool Kits

Abstract

A power tool kit includes a power tool and an auxiliary handle assembly that can be detachably combined with the power tool. The power tool includes a motor and a first switch for turning the motor on and off. The auxiliary handle assembly is provided with a second switch for turning the motor on and off. In the present application, since a switch for turning the motor on and off is also provided on the handle, it is convenient to turn the motor on and off at any time, so that the motor can be turned on and off more timely and conveniently.

Description

[Technical field]

[0001] The invention relates to a power tool kit. [Background technology]

[0002] EP3222386A discloses a power tool kit, comprising a power tool and an auxiliary handle assembly detachably combined with the power tool. An example of the power tool is a portable vacuum cleaner. The power tool comprises a motor, a main control switch for turning the motor on and off, a telescopic tube, and a second switch for turning the motor on and off. The main control switch is a sliding switch. The main control switch has three switch positions, namely a first position, a second position, and a third position. The second switch is triggered according to the telescopic movement of the telescopic tube and is limited by the position of the main control switch. When the main switch is pushed to the first position, the motor will be turned on regardless of whether the second switch is triggered. When the main control switch is pushed to the second position, the motor will be turned off regardless of whether the second switch is triggered. When the main control switch is pushed to the third position, the motor will be turned on if the second switch is triggered, and the motor will be turned off if the second switch is not triggered. Specifically, when in use, the main control switch can be pushed to the third position first, and the power tool and the auxiliary handle assembly are combined together. When the telescopic tube is pressed and retracted, the second switch is triggered and the motor is turned on. When the power tool is moved away and the telescopic tube is reset, the motor is turned off. Such a design can realize convenient turning on and off of the motor and save energy. The present application provides a power tool kit that is different from the previous case and can also conveniently turn on and off the power tool motor. [Summary of the invention]

[0003] The invention provides a power tool kit which is convenient for opening and closing a power tool motor.

[0004] The present invention adopts the following technical solution: a power tool kit, including a power tool and an auxiliary handle assembly that can be detachably combined with the power tool, the power tool includes a motor and a first switch for turning the motor on and off, and the auxiliary handle assembly is provided with a second switch for turning the motor on and off.

[0005] In the present application, since a switch for turning on and off the motor is also provided on the handle, it is convenient to turn on and off the motor at any time, so that the motor can be turned on and off more timely and conveniently.

[0006] Furthermore, wireless communication is adopted between the auxiliary handle assembly and the power tool.

[0007] Furthermore, the first switch has a first state, a second state, and a third state. When the first switch is in the first state, the motor is turned on, when the first switch is in the second state, the motor is turned off, and when the first switch is in the third state, the motor is turned on and off by the second switch.

[0008] Furthermore, the power tool also includes a body, the motor is located inside the body, and the first switch is arranged in the body and exposed to the outside of the body.

[0009] Furthermore, the power tool also includes a telescopic tube that can be extended forwardly outside the body and retracted backwardly into the body, and the auxiliary handle assembly can be detachably combined with the body.

[0010] Furthermore, the auxiliary handle assembly includes an elongated grip and a head assembly, the head assembly includes a shell that can be fixed together with the grip, and the second switch is arranged in the shell and exposed to the outside of the shell.

[0011] Furthermore, the housing includes a first end portion close to the handle and a second end portion opposite to the first end portion and away from the handle, and the second switch is located at the first end portion.

[0012] Furthermore, the shell is provided with a first opening corresponding to at least partially accommodating the second switch; the shell includes a first side wall, a second side wall, a third side wall, and a fourth side wall, the first side wall and the second side wall are spaced opposite to each other front and back, the third side wall and the fourth side wall are located on the left and right sides of the shell and are respectively connected between the first side wall and the second side wall, and the first opening is opened on the first side wall or the second side wall.

[0013] Furthermore, the auxiliary handle assembly also includes a battery clamp for clamping the battery, and the shell is also provided with a second opening corresponding to the battery clamp, and the second opening is used for the battery clamp to enter and exit the shell.

[0014] Furthermore, the grip also includes a grip portion, the auxiliary handle assembly also includes a flange portion located between the housing and the grip portion, the second switch and the grip portion are located on opposite sides of the flange portion, and the flange portion is provided with a clearance notch corresponding to the position of the second switch. Such a design facilitates the operator's fingers holding the grip portion to pass through the clearance notch to the side where the housing is located to operate the second switch, thereby improving the convenience of operating the second switch.

[0015] Furthermore, the flange is in the shape of a circular ring with a defect, and the flange is arranged at one end of the handle to constitute a part of the handle, or is arranged at one end of the shell to constitute a part of the shell.

[0016] Furthermore, the auxiliary handle assembly includes a coupling device that can be fixed to the power tool, the coupling device includes a fastening element, and the coupling device can be locked to the power tool through the fastening unit to lock the auxiliary handle assembly to the power tool. The head assembly also includes a strap, the handle and the strap are located on opposite sides of the shell, the coupling device is retained on the strap, and a portion of the strap is accommodated in the coupling device.

[0017] Furthermore, the fastening element is a positioning knob, which includes a knob portion and a stud extending beyond the knob portion. The combining device includes a first retaining wall that can be removably locked to the power tool through the positioning knob. The first retaining wall is provided with a first hole, and the power tool is provided with a second hole. The stud can be inserted into the first hole and the second hole and screwed and locked with the second hole, and the first hole passes through the first retaining wall.

[0018] Furthermore, when the auxiliary handle assembly is separated from the power tool, the positioning knob is movably retained on the first retaining wall, and the combining device also includes a first spring sleeved on the stud and a limiting ring retained on the stud, the limiting ring and the positioning knob are located on opposite sides of the first retaining wall, and the first spring is limited between the limiting ring and the first retaining wall. When the auxiliary handle assembly is in a state of being locked to the power tool, one of the opposite ends of the first spring is pressed against the first retaining wall and the other of the opposite ends of the first spring is pressed against the limiting ring.

[0019] Furthermore, the power tool is provided with a first embedding groove and a first baffle plate shielding one side of the first embedding groove, and the combination device further includes a second embedding groove and a second baffle plate shielding one side of the second embedding groove. When the auxiliary handle assembly is in a state of being locked to the power tool, the second baffle plate is at least partially embedded in the first embedding groove and the first baffle plate is at least partially embedded in the second embedding groove. With such a design, the combination of the auxiliary handle assembly and the power tool is more secure. The second baffle plate is embedded downwardly in the first embedding groove, and the first baffle plate is embedded upwardly in the second embedding groove.

[0020] Furthermore, the auxiliary handle assembly also includes a first retaining wall. When the power tool includes a first upper surface and a first side surface, the first upper surface is located on the upper side of the power tool, and the first side surface is located on one of the left and right sides of the power tool. The first side surface and the second retaining wall are spaced apart to form the first embedding groove. When the auxiliary handle assembly is in a state of being locked to the power tool, the first retaining wall is abutted against the first upper surface and the second retaining wall is abutted against the first side surface.

[0021] Furthermore, the combining device also includes a first retaining wall, a second retaining wall, and a first hole passing through the first retaining wall. When the first retaining wall is locked to the power tool by the fastening element, the first retaining wall is downwardly abutted against the upper side of the power tool, and the second retaining wall is leftwardly abutted against the right side of the power tool or rightwardly abutted against the left side of the power tool; the power tool also includes a first recess, a second recess, and a second hole passing through the first recess. The first recess is located on the upper side of the power tool, and the second recess is located on one of the left and right sides of the power tool. The fastening unit can be inserted into the first hole and the second hole and screwed and locked with the second hole. When the auxiliary handle assembly is in a state of being locked to the power tool, the first retaining wall is accommodated in the first recess and the second retaining wall is accommodated in the second recess.

[0022] Furthermore, the first recess is located on the upper side of the power tool, and the second recess is located on one of the left and right sides of the power tool. The power tool is also provided with a first embedding groove, which is connected to the second recess and is located on the lower side of the second recess. When the auxiliary handle assembly is in a state of being locked to the power tool, the lower edge of the second retaining wall is embedded in the first embedding groove.

[0023] Furthermore, the power tool is a vacuum cleaner.

[0024] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0025] Figure 1 It is a stereoscopic view of the power tool kit of the present invention (the power tool and the auxiliary handle assembly are in a combined state);

[0026] Figure 2 An exploded view of the power tool kit of the present invention at one angle;

[0027] Figure 3 is an exploded view of the power tool kit of the present invention from another angle;

[0028] Figure 4 This is an exploded view of the power tool kit of the present invention from another angle;

[0029] Figure 5 It is a longitudinal cross-sectional view of the power tool kit of the present invention along the axis of the telescopic tube (the sewage suction hose is not cut);

[0030] Figure 6 It is a horizontal cross-sectional view of the power tool kit of the present invention along the axis of the telescopic tube (the sewage suction hose is not cut);

[0031] Figure 7 It is a longitudinal cross-sectional view of the power tool kit (the power tool and the auxiliary handle assembly are in a combined state) of the present invention (the cross-sectional view is the plane where the handle axis is located and is perpendicular to the telescopic tube axis);

[0032] Figure 8 A longitudinal cross-sectional view of the power tool kit of the present invention along line AA;

[0033] Fig. 9 A longitudinal cross-sectional view of the power tool kit of the present invention perpendicular to the axis of the telescopic tube and cut at the first stop unit;

[0034] Fig.10 It is a three-dimensional diagram of the assembly state of the front end tube, the telescopic tube, the rear end ring, the sewage suction hose, and the rear transfer port of the power tool kit of the present invention;

[0035] Fig.11is a three-dimensional view of the first housing of the power tool kit of the present invention (the first metal member is not shown);

[0036] Fig.12 is a three-dimensional view of the second housing of the power tool kit of the present invention (the second metal member is not shown);

[0037] Fig.13 is a perspective view of a first switch of the power tool kit of the present invention;

[0038] Fig.14 It is a view of the front end cylinder, the telescopic tube, the rear end ring, the scale, the rack, the first stop unit, and the second stop unit of the power tool kit of the present invention in an exploded state;

[0039] Fig.15 A view of another exploded state of the front end tube, the telescopic tube, the rear end ring, the scale, the rack, the first stop unit, and the second stop unit of the power tool kit of the present invention;

[0040] Fig.16 An exploded view of the first stop unit of the power tool kit of the present invention at one angle;

[0041] Fig.17 It is an exploded view of the first stop unit of the power tool kit of the present invention from another angle;

[0042] Fig.18 A three-dimensional diagram of a first stop unit of a power tool kit of the present invention;

[0043] Fig.19 It is a three-dimensional combination diagram of the positioning knob, the limiting ring, and the first spring of the power tool kit of the present invention;

[0044] Fig. 20 A three-dimensional diagram of the rear end ring of the power tool kit of the present invention;

[0045] Fig.21 A perspective view of the front end barrel of the power tool kit of the present invention;

[0046] Fig. 22 A peripheral power supply circuit diagram of the power tool kit battery pack of the present invention;

[0047] Fig.23 It is a schematic diagram of the peripheral circuit of the first wireless communication module of the power tool kit of the present invention;

[0048] Fig.24 is a schematic diagram of the peripheral circuit of the second wireless communication module of the power tool kit of the present invention;

[0049] Fig.25 A driving circuit diagram of a motor of a power tool kit of the present invention;

[0050] Fig.26This is a peripheral circuit diagram of the power tool kit control chip of the present invention. [Specific implementation method]

[0051] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0052] Reference Figures 1 to 21 As shown, a power tool kit includes a power tool and an auxiliary handle assembly, and the auxiliary handle assembly can be detachably combined with the power tool. The auxiliary handle assembly includes a fastening element for locking the auxiliary handle assembly to the power tool, and the fastening element is a screw (not shown) or a positioning knob 1. The positioning knob 1 includes a knob portion 10 and a stud 11 extending beyond the knob portion 10. The auxiliary handle assembly includes a first hole 20, and the power tool is provided with a second hole 30. The stud 11 can be inserted into the first hole 20 and the second hole 30 and screwed and locked with the second hole 30. Compared with the screw, the positioning knob 1 is convenient for the operator to directly screw it by hand without the need for tightening with the aid of a tool, and is very convenient to operate. The positioning knob 1 is also provided with a first screw (not shown) that fixes the stud 11 to the knob portion 10. The stud 11 is provided with a threaded hole 110 for screwing and locking with the first screw. The stud 11 is locked to the positioning knob 1 by the first screw, and one end of the stud 11 is accommodated in the knob portion 10.

[0053] The auxiliary handle assembly also includes a first retaining wall 21 and a second retaining wall 22. The first retaining wall 21 can be removably locked to the power tool through the positioning knob 1. The first hole 20 is provided on the first retaining wall 21 and penetrates the first retaining wall 21. Furthermore, the first hole 20 penetrates the first retaining wall 21 from top to bottom. When the first retaining wall 21 is in a state of being locked to the power tool, the first retaining wall 21 is pressed downward against the upper side of the power tool and the knob portion 10 is located on the upper side of the first retaining wall 21. Such a design can facilitate the operator to turn the positioning knob 1 from the top of the power tool, with a large operating space and more convenient operation. When the auxiliary handle assembly is in a state of being separated from the power tool, the positioning knob 1 is movably retained on the first retaining wall 21. The first retaining wall 21 is arranged horizontally, and the second retaining wall 22 is arranged longitudinally. The first retaining wall 21 and the second retaining wall 22 form an L shape, and the first retaining wall 21 is perpendicular to the second retaining wall 22. The auxiliary handle assembly also includes a first spring 12 sleeved on the stud 11, a limiting ring 13 retained on the stud 11, the limiting ring 13 and the positioning knob 1 are located on opposite sides of the first retaining wall 21, and the first spring 12 is limited between the limiting ring 13 and the first retaining wall 21. When the auxiliary handle assembly is in a state of being locked to the power tool, one of the opposite ends of the first spring 12 presses against the first retaining wall 21 and the other of the opposite ends of the first spring 12 presses against the limiting ring 13. The positioning knob 1 is movably retained on the first retaining wall 21 and is not easily lost, and the locking process of the auxiliary handle assembly and the power tool is faster and more convenient. The stud 11 is provided with a slot (not shown), the limiting ring 13 is retained in the slot, the limiting ring 13 is C-shaped, and the slot is an annular groove surrounding the axis of the stud 11.

[0054] The power tool is provided with a first embedding groove 31, a first baffle plate 32 shielding one side of the first embedding groove 31, and the first baffle plate 32 constitutes one of the groove walls of the first embedding groove 31. The auxiliary handle assembly also includes a second embedding groove 23, and a second baffle plate 22 shields one side of the second embedding groove 23, and the second baffle plate 22 constitutes one of the groove walls of the second embedding groove 23. When the auxiliary handle assembly is in a state of being locked to the power tool, the second baffle plate 22 is at least partially embedded in the first embedding groove 31 and the first baffle plate 32 is at least partially embedded in the second embedding groove 23. With such a design, the combination of the auxiliary handle assembly and the power tool is more secure. The second baffle plate 22 is embedded downwardly in the first embedding groove 31, and the first baffle plate 32 is embedded upwardly in the second embedding groove 23. The auxiliary handle assembly also includes a first protrusion 24 protruding downwardly, and the first protrusion 24 and the second baffle plate 22 are spaced apart to form the second embedding groove 23.

[0055] When the auxiliary handle assembly is in a state of being locked to the power tool, the first retaining wall 21 is against the upper side of the power tool and the second retaining wall 22 is against one of the left and right sides of the power tool. Furthermore, the second retaining wall 22 is against the right side of the power tool to the left or against the left side of the power tool to the right. Figure 7The auxiliary handle assembly is arranged on the right side of the power tool, so the second retaining wall 22 is against the right side of the power tool. The power tool comprises a first upper surface 330 and a first side surface 331. The first upper surface 330 is located on the upper side of the power tool, and the first side surface 331 is located on one of the left and right sides of the power tool. The first side surface 331 and the second retaining wall 22 are spaced to form the first embedding groove 31. When the auxiliary handle assembly is in a state of being locked to the power tool, the first retaining wall 21 is against the first upper surface 330 and the second retaining wall 22 is against the first side surface 331. The first upper surface 330 is horizontal, and the first side surface 331 is vertical.

[0056] The power tool further includes a first recess 250 and a second recess 251. The second hole 30 is connected to the first recess 250. The first recess 250 is located on the upper side of the power tool, and the second recess 251 is located on one of the left and right sides of the power tool. When the auxiliary handle assembly is in a state of being locked to the power tool, the first retaining wall 21 is accommodated in the first recess 250 and the second retaining wall 22 is accommodated in the second recess 251. The second hole 30 extends downward from the first recess 250. The second hole 30 includes a first hole section 300 and a second hole section 301. The first hole section 300 is located between the second hole section 301 and the first recess 250. The second hole section 301 is provided with an internal thread 302 for screwing and locking with the fastening unit. Figure 7 As shown in , the stud 11 is provided with an external thread 112 for matching with the internal thread 302 , and the internal thread 302 is screwed and locked with the stud 11 of the positioning knob 1 .

[0057] The power tool includes a body, a motor 700, a fan 701, and a battery pack 73; the motor 700 and the fan 701 are located in the body, and the motor 700 provides power for sucking dust, debris and other garbage. Specifically, the motor 700 drives the fan 701 to rotate to generate a suction airflow. The fan 701 is usually an impeller fan, and the rated power of the motor 700 is between 50w and 1800w; the power tool is powered by a battery pack 73, which is plugged into the body and located outside the body, and the rated voltage of the battery pack 73 is between 10 volts and 60 volts; the body includes a first shell 40 and a second shell 41, and the first shell 40 is fixed with a first metal part 42, and the first metal part 42 can be screwed to the first shell 40, and the first recess 250, the second recess 251, and the first hole 20 are respectively arranged on the first metal part 42 to constitute a part of the first metal part 42. The first shell 40 is mainly made of plastic material, and the first metal part 42 is made of stainless steel. The first embedding groove 31, the first upper surface 330, and the first side surface 331 are respectively arranged on the first metal member 42 and constitute a part of the first metal member 42. The first embedding groove 31 is connected with the second recess 251 and is located at the lower side of the second recess 251. When the auxiliary handle assembly is in a state of being locked to the power tool, the lower edge of the second retaining wall 22 is embedded in the first embedding groove 31. The second housing 41 is fixed with a second metal member 43. The first housing 40 and the second housing 41 are roughly symmetrical, and the first metal member 42 and the second metal member 43 are roughly symmetrical. The auxiliary handle assembly can be connected to either side of the left or right sides of the power tool. Further, the auxiliary handle assembly can be locked to the first metal member 42 by a fastening unit, and when the auxiliary handle assembly is on the other side of the power tool, it can also be locked to the second metal member 43 by a fastening unit.

[0058] The auxiliary handle assembly includes an elongated handle 51, a head assembly that can be fixed together with the handle 51, and a coupling device 52. The head assembly includes a shell 44 that can be fixed together with the handle 51, and a tie ring 45. The handle 51 and the tie ring 45 are located on opposite sides of the shell 44. The auxiliary handle assembly is locked to the power tool through the coupling device 52. The fastening element, the first baffle wall 21, the second baffle wall 22, the first protrusion 24, the first spring 12, and the limit ring 13 are respectively part of the coupling device 52. The coupling device 52 is retained on the tie ring 45. The coupling device 52 includes an arc portion 53 located in the tie ring 45 and adapted to the tie ring 45. The first baffle wall 21 and the second baffle wall 22 are respectively located on opposite sides of the arc portion 53 from the coupling device 52. A portion of the tie ring 45 is accommodated in the coupling device 52 and abuts against the arc portion 53. The coupling device 52 is provided with a receiving groove 54, and the part of the collar 45 is received in the receiving groove 54, and the receiving groove 54 is in an arc shape adapted to the collar 45. The coupling device 52 is locked to the power tool through a fastening unit so that the auxiliary handle assembly is locked to the power tool. The coupling device 52 is locked to the first metal member 42 through the fastening unit, and when the auxiliary handle assembly is connected to the other side of the power tool, the coupling device 52 can also be locked to the second metal member 43 through the fastening unit. The head assembly also includes a long screw 48, which is T-shaped. The tie ring 45 is a steel ring. The tie ring 45 is integrally connected to two extension arms 450 and 451. The two extension arms 450 and 451 are respectively provided with a third opening (not shown). The first extension portion 480 of the long screw 48 passes through the third opening of the extension arm 450 and hooks the extension arm 450. The second extension portion 481 of the long screw 48 passes through the third opening of the extension arm 451 and hooks the extension arm 451, thereby combining the long screw 48 with the tie ring 45; the long screw 48 is screwed and fixed to the handle 51 to fix the shell 44 and the handle 51 together.

[0059] The power tool also includes a first switch 71 for turning on and off the motor 700. The auxiliary handle assembly is provided with a second switch 55 for turning on and off the motor 700. Since a switch for turning on and off the motor 700 is also provided on the auxiliary handle assembly, the second switch 55 is used to facilitate the more timely and convenient turning on and off of the motor 700, which is convenient to operate and also helps to save energy. Wireless communication is adopted between the auxiliary handle assembly and the power tool. The auxiliary handle assembly also includes a first wireless communication module 56, a battery (not shown) for powering the first wireless communication module 56, and a circuit board 59. The first wireless communication module 56 is arranged on the circuit board 59. The circuit board 59 can be fixed inside the auxiliary handle assembly by screws. The second switch 55 is electrically connected to the first wireless communication module 56. The battery adopts a button battery, and the voltage of the button battery is 3.3 volts. The power tool is provided with a second wireless communication module 72 corresponding to the wireless communication with the first wireless communication module 56. The first switch 71 has a first state, a second state, and a third state. Different states correspond to different gears. The first state, the second state, and the third state correspond to the motor being normally open, the motor being normally closed, and the second switch 55 controlling. Specifically, when the first switch 71 is in the first state, the motor 700 is turned on, when the first switch 71 is in the second state, the motor 700 is turned off, and when the first switch 71 is in the third state, the motor 700 is turned on and off by the second switch 55. The second switch 55 can be a button switch, a seesaw switch, or a sliding switch. In this embodiment, the second switch 55 is a button switch, the first switch 71 is a seesaw switch (another name for a seesaw switch is a boat switch), and the main control switch of the previous case EP3222386A of this application is a sliding switch. Since the button switch, the seesaw switch, or the sliding switch are all existing commonly used switch types, the innovation of this application is not in the structure of the first switch 71 and the second switch 55 itself, so it will not be repeated.

[0060] The control process is specifically described using the first switch 71 using a rocker switch in this embodiment: Fig.13 ) has an identifier "-", "0", "=", when the first switch 71 is turned to the "-" position, the first switch 71 is in the first state, when the first switch 71 is turned to the "0" position, the first switch 71 is in the second state, and when the first switch 71 is turned to the "=" position, the first switch 71 is in the third state; Figure 22 to Figure 26 For the relevant circuit diagram. Fig. 22 :The first switch 71 corresponds to the switch S1. When the switch S1 is not connected to other contacts, the first switch 71 corresponds to the second state. At this time, the positive terminal (i.e., BAT+) of the battery pack 73 is not connected to the circuit, so the motor 700 is in the off state; the switch S1 is connected to the two contacts a, which corresponds to the first switch 71 in the first state. The switch S1 is connected to the two contacts b, which corresponds to the first switch 71 in the third state. Fig.25, if the MOS tube Q6 is turned on, the two-end circuit of the motor 700 is connected, so that the motor 700 is turned on; if the MOS tube Q6 is not turned on, the two-end circuit of the motor 700 is not turned on, so that the motor 700 is turned off. The conduction of the MOS tube Q6 requires that the "VAC FET ON" terminal is connected to a high level (for example, 3.3 volts) and the "VAC FET OFF" terminal is connected to a low level (for example, zero potential); when the switch S1 is connected to the two contacts a, the AUTO terminal is not grounded (grounding means zero potential), and the AUTO terminal voltage detected by the control chip of the power tool (model R5F1026AASP, set in the body) is still 3.3 volts, so the first switch 71 is determined to be in the first state, and then the control chip gives the "VAC FET ON" terminal a high level (for example, 3.3 volts) and the "VAC FET OFF" terminal a low level. The OFF" terminal is low level (for example, 0V), so that the transistor Q2 is turned on, the transistor Q3 is turned on, the transistor Q1 is blocked, and the MOS tube Q6 is turned on, and then the motor 700 is turned on; when the switch S1 is connected to the two contacts b, the AUTO terminal is grounded and becomes zero potential. The control chip detects that the AUTO terminal is zero potential and determines that the first switch 71 is in the third state. At this time, the second switch 55 (corresponding to Fig.23The switch S2 in the figure is used to turn the motor 700 on and off; when the first switch 71 is in the third state, each time the second switch 55 is pressed, the state of the motor 700 will change once: from on to off or from off to on, specifically: the second switch 55 is pressed so that S2 is turned on, the first wireless communication module 56 is connected to the button battery (corresponding to the label B), and the first wireless communication module 56 after power-on sends a signal to the second wireless communication module 72, and the second wireless communication module 72 is fed back to the control chip through the REMOTE terminal, and the control chip will control the previously closed motor 700 to turn on, and the process is the same as before: the high level and the "VAC FET ON" terminal are connected to the high level and the "VAC FET The "VAC FET ON" terminal is connected to a low level, so that the transistor Q2 is turned on, the transistor Q3 is turned on, and the transistor Q1 is blocked, and then the MOS tube Q6 is turned on, so that the motor 700 is turned on. After that, if the motor 700 is to be turned off, the second switch 55 is pressed again, S2 is turned on again, so that the first wireless communication module 56 sends a signal to the second wireless communication module 72 after being powered on, and the second wireless communication module 72 is fed back to the control chip through the REMOTE terminal, and the control chip changes the "VAC FET ON" terminal from a high level to a low level and turns the "VAC FET ON" terminal on. The "OFF" end changes from a low level to a high level, so that the transistor Q2 is blocked, the transistor Q3 is blocked, the transistor Q1 is turned on, and then the MOS tube Q6 is blocked, so the two ends of the motor 700 do not form a power-on circuit, and the motor 700 is powered off and turned off; the first wireless communication module 56 and the second wireless communication module 72 can be used as wireless transceiver modules respectively, and the first wireless communication module 56 and the second wireless communication module 72 can use the same wireless module (model DL-bk24K6, produced by Shenzhen Boxin Company). It should be noted that since the control chip and the wireless module are very conventional electronic components, the control chip, the first wireless communication module 56, and the second wireless communication module 72 can be replaced by other control chips and wireless modules as needed; in addition, since some wireless modules have strong computing power and can be used as control chips themselves, a separate control chip can be omitted, and the second wireless communication module 72 in this application can be used as a control chip. The circuit shown in this application is just an example. Obviously, other people with conventional circuit knowledge can easily build various different circuits and realize the circuit functions of this application.

[0061] The first switch 71 is arranged on the body and exposed to the outside of the body, and the second switch 55 is arranged on the shell 44 and exposed to the outside of the shell 44. The shell 44 is provided with a first opening 460 corresponding to at least partially accommodating the second switch 55. The closest distance between the handle 51 and the second switch 55 is in the range of 3 mm to 15 mm (preferably 4 mm, 5 mm, 7 mm, 10 mm). With such a design, it is convenient for the fingers of the hand holding the handle 51 to operate the second switch 55. The first wireless communication module 56 and the battery are located in the shell 44. The shell 44 includes a first end close to the handle 51 and a second end opposite to the first end and away from the handle 51. The second switch 55 is located at the first end. The auxiliary handle assembly also includes a battery clamp 58 for clamping the battery. The battery is clamped in the clamping opening 580 of the battery clamp 58. The shell 44 is also provided with a second opening 461 corresponding to the battery clamp 58. The second opening 461 allows the battery clamp 58 to enter and exit the shell 44. The battery clamp 58 can carry the battery to enter and exit the shell 44 through the second opening 461. The handle 51 also includes a grip portion 510, and the auxiliary handle assembly also includes a flange portion 511 located between the housing 44 and the grip portion 510. The second switch 55 and the grip portion 510 are located on opposite sides of the flange portion 511. The flange portion 511 is provided with a clearance notch 512 corresponding to the position of the second switch 55, so that the fingers of the operator holding the grip portion 510 can pass through the clearance notch 512 to the side of the housing 44 to operate the second switch 55. The clearance notch 512 can effectively reduce or eliminate the hindrance of the flange portion 511 to the operator's fingers, thereby improving the convenience of operating the second switch 55. The flange portion 511 is in a circular ring shape with a defect. In this embodiment, the flange portion 511 is arranged at one end of the housing 44 to constitute a part of the housing 44. Of course, it can also be arranged at one end of the handle 51 to constitute a part of the handle 51. The housing 44 includes a first side wall 470, a second side wall 471, a third side wall 472, and a fourth side wall 473. The first side wall 470 and the second side wall 471 are spaced apart from each other in front and back; the third side wall 472 and the fourth side wall 473 are located at the left and right sides of the housing 44 and are respectively connected between the first side wall 470 and the second side wall 471; the first opening 460 is provided in the first side wall 470 or the second side wall 471, preferably in the first side wall 470. The first side wall 470 and the second side wall 471 are generally flat, and the third side wall 472 and the fourth side wall 473 are respectively arc-shaped.

[0062] The motor 700 provides suction power, and the power tool further includes a telescopic tube 74, a first stop unit that can move with the telescopic tube 74, a plurality of accommodating parts 802 distributed along the length direction of the telescopic tube 74, and a second stop unit. The first stop unit is used to limit the depth of the telescopic tube 74 retracted into the body, and the second stop unit is used to limit the length of the telescopic tube 74 extending out of the body. The first stop unit is provided with a driving member 60, and the driving member 60 is provided with a locking part 600 that can enter and disengage from the accommodating part 802. After the locking part 600 disengages from the accommodating part 802, the first stop unit can move relative to the telescopic tube 74 along the length direction of the telescopic tube 74. When the locking part 600 enters the accommodating part 802, the movement of the first stop unit relative to the telescopic tube 74 along the length direction of the telescopic tube 74 is blocked. When the driving member 60 moves relative to the telescopic tube 74 along a first direction, it drives the locking part 600 to disengage from the accommodating part 802 along the first direction. The telescopic tube 74 is telescopic along the front-to-back direction, and the length direction of the telescopic tube 74 is the front-to-back direction. The first direction is perpendicular to the length direction of the telescopic tube 74. In this case, when the driving member 60 moves relative to the telescopic tube 74 along the first direction, it drives the locking portion 600 to disengage from the accommodating portion 802 along the first direction. The unlocking direction driven by the driving member 60 is consistent with the direction in which the locking portion 600 disengages from the accommodating portion 802, and the unlocking design is simple. The locking portion 600 is located on the side of the driving member 60 facing the telescopic tube 74.

[0063] The driving member 60 further includes a main body 601 and a button 602, wherein the button 602 is located at one of the opposite ends of the main body 601 in the first direction, and the locking portion 600 is located at a side of the main body 601 facing the telescopic tube 74 and extends from the main body 601 to the telescopic tube 74. Further, the button 602 is located at the upper end of the main body 601, and the driving member 60 is a one-piece part, wherein the main body 601, the button 602 and the locking portion 600 are integrally formed, and the locking portion 600 extends from the main body 601 to the telescopic tube 74 along a second direction perpendicular to the telescopic tube 74, wherein the second direction is perpendicular to the first direction, and the locking portion 600 is a protrusion protruding toward the telescopic tube 74. The telescopic tube 74 is provided with a guide rail extending in the length direction thereof, and the guide rail includes an upper guide rail 740 and a lower guide rail 741 extending in the length direction of the telescopic tube 74 respectively. The first stop unit also includes a sliding member 61 that slides along the guide rail when moving, and a reset spring 62 that drives the driving member 60 to reset. The driving member 60 is assembled to the sliding member 61. The driving member 60 also includes a first guide portion 603, a first stop portion 604, and a second stop portion 605. The first guide portion 603 is located on the side of the driving member 60 that is away from the telescopic tube 74. The sliding member 61 is provided with a second guide portion 610. One of the first guide portion 603 and the second guide portion 610 is a guiding groove, and the other of the first guide portion 603 and the second guide portion 610 is a guiding rib that can slide along the guiding groove. In this embodiment, the first guide portion 603 is a guiding groove and the second guide portion 610 is a guiding rib. The first guide portion 603 and the locking portion 600 are located on opposite sides of the main body 601. The first guide portion 603 and the second guide portion 610 extend along the first direction. The first guide portion 603 and the second guide portion 610 cooperate to guide the driving member 60 to move along the first direction.

[0064] The button portion 602 and the return spring 62 are located at opposite sides of the driving member 60 in the first direction, the first stop portion 604 and the second stop portion 605 are located at the front and rear sides of the driving member 60, and the first stop portion 604 and the second stop portion 605 are accommodated in the sliding member 61. The sliding member 61 includes an upper slide groove 611 matching the upper guide rail 740, a lower slide groove 612 matching the lower guide rail 741, a first side plate 613 and a second side plate 614 opposite to each other, a third side plate 615 connecting the first side plate 613 and the second side plate 614, a first eaves portion 616 for stopping the first stop portion 604, and a second eaves portion 617 for stopping the first stop portion 604, the first stop portion 604 is located between the first eaves portion 616 and the third side plate 615, the second stop portion 605 is located between the second eaves portion 617 and the third side plate 615, and the return spring 62 presses against the third side plate 615. When moving, the sliding member 61 moves along the upper guide rail 740 and the lower guide rail 741 by means of the upper slide groove 611 and the lower slide groove 612. The first eaves 616 is connected to the first side plate 613, the second eaves 617 is connected to the second side plate 614, and the main body 601 is located between the first side plate 613 and the second side plate 614. The first direction is downward or upward; in this embodiment, the first direction is preferably downward, the first stopper 604 presses upward against the first eaves 616, the second stopper 605 presses upward against the second eaves 617, and the return spring 62 presses downward against the third side plate 615. The first stopper 604 and the second stopper 605 are respectively ribs with one end facing the telescopic tube 74, the first stopper 604 and the second stopper 605 are respectively perpendicular to the telescopic tube 74, the first stopper 604 is located on the side of the driving member 60 facing the fuselage, and the second stopper 605 is located on the side of the driving member 60 facing away from the fuselage. The return spring 62 presses against the third side plate 615 along the first direction, the first stopper 604 presses against the first eaves 616 against the first direction, and the second stopper 605 presses against the second eaves 617 against the first direction. The driving member 60 further includes an extension column 606, which is located on opposite sides of the driving member 60 in the first direction from the return spring 62. The extension column 606 extends from the main body 601 toward the third side plate 615, and the return spring 62 is sleeved on the extension column 606. The extension column 606 extends from the main body 601 along the first direction, and the extension column 606 and the return spring 62 are accommodated in the sliding member 61.

[0065] The power tool further comprises a rack 80 held on the telescopic tube 74, the rack 80 comprising a plurality of teeth 801 distributed along the length direction of the telescopic tube 74, and the tooth grooves between adjacent teeth 801 constitute the accommodation portion 802. The first guide portion 603 is located on the side of the driving member 60 facing away from the rack 80, the locking portion 600 is located on the side of the driving member 60 facing the rack 80, and after the locking portion 600 is disengaged from the tooth groove, the first stop unit can move along the upper guide rail 740 and the lower guide rail 741, the rack 80 is limited between the upper guide rail 740 and the lower guide rail 741, the lower side of the upper guide rail 740 is recessed upwardly with an upper long groove 742 extending along the length direction of the telescopic tube 74, the upper side of the lower guide rail 741 is recessed downwardly with a lower long groove 743 extending along the length direction of the telescopic tube 74, the upper edge of the rack 80 is accommodated in the upper long groove 742, and the lower edge of the rack 80 is accommodated in the lower long groove 743. The second stop unit includes a first part which is arranged on the fuselage and cannot move with the telescopic tube 74, and a second part which is arranged on the telescopic tube 74 and can move with the telescopic tube 74. The first part includes a button member 630 with an extension rod 631 and a second spring 632 which drives the button member 630 to return to its original position. The second spring 632 is sleeved on the extension rod 631. The second part includes a second driving member 64, a second sliding member 65, and a second return spring 66. The second driving member 64 is accommodated in the second sliding member 65. The second housing 41 is provided with a through opening 410 for accommodating the button member 630. The second sliding member 65 is retained on the upper guide rail 740 and the lower guide rail 741. The button member 630 is pressed along the first direction. The end of the extension rod 631 pushes the second driving member 64 to move along the first direction, driving the second locking portion 640 of the second driving member 64 to disengage from the accommodating portion 802 along the first direction and the end of the extension rod 631 is inserted into the second sliding member 65 along the first direction. At this time, when the telescopic tube 74 is retracted backward into the fuselage, the second sliding member 65 is restricted from moving forward and backward due to the insertion of the second sliding member 65 into the lower end of the extension rod 631, and the second driving member 64 and the second sliding member 65 will remain in place and will not move with the telescopic tube 74; when the button member 630 is released, the button member 630 and the second driving member 64 are reset, the lower end of the extension rod 631 is disengaged from the second sliding member 65 and no longer blocks the second sliding member 65, and the second locking portion 640 of the second driving member 64 returns to the tooth groove to lock the second driving member 64. At this time, when the telescopic tube 74 is retracted backward into the fuselage, the second driving member 64 and the second sliding member 65 will move with the telescopic tube 74.

[0066] The rack 80 includes a rack body 800, a long strip portion 803 parallel to the rack body 800, a first connection portion 804 and a second connection portion 805 respectively connected between the rack body 800 and the long strip portion 803, the rack body 800 and the long strip portion 803 respectively extend along the length direction of the telescopic tube 74, the tooth portion 801 and the tooth groove are respectively part of the rack body 800 and are arranged on the side of the rack body 800 facing the long strip portion 803, the first connection portion 804 and the second connection portion 805 are located at opposite ends of the length direction of the rack 80, the first connection portion 804 and the second connection portion 805 are strip-shaped, the locking portion 600 extends between the rack body 800 and the long strip portion 803, and when the driving member 60 moves relative to the telescopic tube 74 along the first direction, it drives the locking portion 600 to move toward the long strip portion 803 along the first direction. The rack 80 is a one-piece part, and the rack body 800, the long strip portion 803, the first connecting portion 804, and the second connecting portion 805 are connected together to form a long rectangular frame. With this design, the structure of the rack 80 is more stable.

[0067] The power tool further includes a sewage suction hose 81, a rear ring 82 installed at the rear end of the telescopic tube 74, and a front tube 83 installed at the front end of the telescopic tube 74. The front end of the sewage suction hose 81 is sleeved with the front tube 83. The front tube 83 is provided with a cylindrical portion 8392 extending backward. The front end of the sewage suction hose 81 is tightly sleeved on the cylindrical portion 8392. The sewage suction hose 81 passes through the rear ring 82. The telescopic tube 74 can extend outward from the machine body and retract into the machine body along its own length direction. The sewage suction hose 81 is at least partially accommodated in the machine body, and the rear ring 82 is at least partially accommodated in the machine body. The sewage suction hose 81 adopts a spring hose with front and rear telescopic elasticity. If the telescopic tube 74 is not blocked, the compressed sewage suction hose 81 will drive the telescopic tube 74 to extend forward. The tube wall of the telescopic tube 74 is provided with a first positioning port 744, a second positioning port 745, a third positioning port 746, and a fourth positioning port 747. The rear end ring 82 extends forward and is provided with a first extension arm 820 and a second extension arm 821. The front end tube 83 extends backward and is provided with a third extension arm 830 and a fourth extension arm 831. The first extension arm 820 is provided with a first protrusion 822 limited to the first positioning port 744, the second extension arm 821 is provided with a second protrusion 823 limited to the second positioning port 745, the third extension arm 830 is provided with a third protrusion 832 limited to the third positioning port 746, and the fourth extension arm 831 is provided with a fourth protrusion 833 limited to the fourth positioning port 747. The first protrusion 822 constitutes a barb corresponding to the first positioning opening 744 of the first extension arm 820, the second protrusion 823 constitutes a barb corresponding to the second positioning opening 745 of the second extension arm 821, the third protrusion 832 constitutes a barb corresponding to the third positioning opening 746 of the third extension arm 830, and the fourth protrusion 833 constitutes a barb corresponding to the fourth positioning opening 747 of the fourth extension arm 831.

[0068] The rear end ring 82 is further provided with a first boss 824, a second boss 825, a first arc-shaped portion 826, and a second arc-shaped portion 827. The first extension arm 820 extends forward from the first boss 824 into the telescopic tube 74, and the second extension arm 821 extends forward from the second boss 825 into the telescopic tube 74; the first arc-shaped portion 826 and the second arc-shaped portion 827 are respectively connected between the first boss 824 and the second boss 825, and the first boss 824, the first arc-shaped portion 826, the second boss 825, and the second arc-shaped portion 827 are connected together to form a ring shape; the front end tube 83 is further provided with a third boss 834 and a fourth boss 835. The third extension arm 830 extends backward from the third boss 834 into the telescopic tube 74, and the fourth extension arm 831 extends backward from the fourth boss 835 into the telescopic tube 74. The first boss 824 and the second boss 825 are located on opposite sides of the rear ring 82 in the radial direction, and the third boss 834 and the fourth boss 835 are located on opposite sides of the front tube 83 in the radial direction. The second boss 825 is provided with a first groove 8250, which is formed by being recessed backward from the front side of the second boss 825, and the fourth boss 835 is provided with a second groove 8350, which is formed by being recessed forward from the rear side of the fourth boss 835. The rack 80 is limited between the second boss 825 and the fourth boss 835, and the rear end of the rack 80 extends into the first groove 8250, and the front end of the rack 80 extends into the second groove 8350.

[0069] The power tool also includes a scale 84, the front end tube 83 is also provided with a third arc portion 836 and a fourth arc portion 837, the third arc portion 836 and the fourth arc portion 837 are respectively connected between the third boss 834 and the fourth boss 835, the third boss 834, the third arc portion 836, the fourth boss 835, and the fourth arc portion 837 are connected together to form a ring; the rear end ring 82 is provided with a third groove 828 recessed backward, and the front end tube 83 is also provided with a fourth groove 838 recessed forward, and the scale 84 is limited to the rear Between the end ring 82 and the front end tube 83; further, the third groove 828 is provided in the first arc-shaped portion 826, and the third groove 828 is formed by being recessed backward from the front side of the first arc-shaped portion 826, and the fourth groove 838 is provided in the third arc-shaped portion 836, and the fourth groove 838 is formed by being recessed forward from the rear side of the third arc-shaped portion 836, and the scale 84 is limited between the first arc-shaped portion 826 and the third arc-shaped portion 836, the rear end of the scale 84 extends into the third groove 828, and the front end of the scale 84 extends into the fourth groove 838. The first positioning opening 744, the second positioning opening 745, the third positioning opening 746, and the fourth positioning opening 747 are respectively through openings penetrating the tube wall of the telescopic tube 74. The first positioning opening 744 and the second positioning opening 745 are opposite to each other in the radial direction of the telescopic tube 74, and the third positioning opening 746 and the fourth positioning opening 747 are opposite to each other in the radial direction of the telescopic tube 74. The first extension arm 820, the second extension arm 821, the third extension arm 830, and the fourth extension arm 831 are respectively located at the periphery of the sewage suction hose 81, and the first protrusion 822 enters the first positioning opening 744 from the inside of the telescopic tube 74. The second protrusion 823 enters the second positioning port 745 from within the telescopic tube 74, the third protrusion 832 enters the third positioning port 746 from within the telescopic tube 74, and the fourth protrusion 833 enters the fourth positioning port 747 from within the telescopic tube 74; further, the first protrusion 822 is clamped into the first positioning port 744 from within the telescopic tube 74, the second protrusion 823 is clamped into the second positioning port 745 from within the telescopic tube 74, the third protrusion 832 is clamped into the third positioning port 746 from within the telescopic tube 74, and the fourth protrusion 833 is clamped into the fourth positioning port 747 from within the telescopic tube 74. The first extension arm 820 and the second extension arm 821 are opposite to each other in the radial direction of the telescopic tube 74, and the third extension arm 830 and the fourth extension arm 831 are opposite to each other in the radial direction of the telescopic tube 74. The first extension arm 820, the second extension arm 821, the third extension arm 830, and the fourth extension arm 831 are respectively attached to the inner surface of the tube wall of the telescopic tube 74; further, the first extension arm 820, the second extension arm 821, the third extension arm 830, and the fourth extension arm 831 are respectively attached to the inner surface of the tube wall of the telescopic tube 74. The rear end ring 82 is provided with a guide groove 829, and a guide rib 400 is provided inside the fuselage. The guide rib 400 is in a long strip shape, and part of the guide rib 400 is embedded in the guide groove 829. When the telescopic tube 74 is retracted backward into the fuselage, the rear end ring 82 moves backward along the guide rib 400 through the guide groove 829.The guide rib 400 is disposed on the first housing 40 and constitutes a part of the first housing 40. The guide groove 829 is recessed in the first boss 824 and passes through the front and rear sides of the first boss 824.

[0070] The power tool can be a vacuum cleaner, which also includes a battery pack 73 for power supply, a dust cup 75, a filter 76, a rear adapter port 77, a front adapter port 78, and a suction head 79. The battery pack 73 and the dust cup 75 are respectively installed on the body, and many ventilation holes 85 are provided on the left and right sides of the body. The suction head 79 is provided with a cantilever arm 794, bristles 790, a hook portion 791 and an unlocking button 792 connected to the hook portion 791. The front adapter port 78 is provided with a fourth opening 780, a slider 781, a first positioning protrusion 782, and a second positioning protrusion 783. The hook portion 791 is integrally arranged on the cantilever arm 794. After the suction head 79 is installed in the front transfer port 78, the barb 791 is positioned in the fourth opening 780; the unlocking button 792 is pressed to press the cantilever arm 794 into the front transfer port 78, so that the barb 791 can be retracted into the front transfer port 78 and disengaged from the fourth opening 780, thereby allowing the suction head 79 to be withdrawn from the front transfer port 78. The front transfer port 78 is docked with the front end portion 839 of the front end tube 83, and the front end portion 839 is provided with a semi-annular groove 8390 and a positioning recess 8391. The front transfer port piece 78 can be rotated about 180 degrees relative to the front end portion 839. It can be rotated from the left side of the front end portion 839 to the upper side of the front end portion 839 and then to the right side of the front end portion 839, and can be rotated back along the original path; during the rotation of the front transfer port piece 78 relative to the front end portion 839, the slider 781 rotates along the semi-annular groove 8390, and the semi-annular groove 8390 rotates about 180 degrees. When the slider 781 is rotated to and stopped at one end of the semi-annular groove 8390 and stops in place, the first positioning protrusion 782 is exactly located in the positioning recess 8391. When the slider 781 is rotated to and stopped at the opposite end of the semi-annular groove 8390 and stops in place, the second positioning protrusion 783 is exactly located in the positioning recess 8391. Such a design can increase the operator's sense of positioning for left and right rotation. The vacuum cleaner is suitable for use with an electric drill or an electric hammer to absorb dust, debris and other garbage generated when the electric drill or the electric hammer is working. Taking the use of the vacuum cleaner in conjunction with the electric drill as an example, the electric drill and the vacuum cleaner are combined together on the left and right through the auxiliary handle assembly (the tie ring 45 tightens the electric drill, and the combination device 52 is locked to the vacuum cleaner through the fastening unit), the drill bit of the electric drill passes through the center 793 of the bristles 790, and the motor 700 rotates to drive the fan 701 to form an airflow for sucking dust, debris and other garbage. The airflow carries the dust, debris and other garbage generated by the electric drill through the suction head 79, the front adapter port 78, the front end tube 83, the suction hose 81, and the rear adapter port 77 into the dust cup 75 in turn, and further flows through the filter 76. The dust, debris and other garbage are filtered out by the filter 76 and remain in the dust cup 75. The clean air filtered by the filter 76 passes through the fan 701 and the vent 85 and is discharged from the vacuum cleaner.

[0071] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A power tool kit, comprising a power tool and an auxiliary handle assembly detachably combined with the power tool, the power tool comprising a motor and a first switch for turning the motor on and off, characterized in that: The auxiliary handle assembly that can be detachably combined with the power tool is provided with a second switch for turning on and off the motor; the first switch has a first state, a second state, and a third state. When the first switch is in the first state, the motor is turned on, and when the first switch is in the second state, the motor is turned off. When the first switch is in the third state, the motor is turned on and off by the second switch.

2. The power tool kit according to claim 1, characterized in that: Wireless communication is employed between the auxiliary handle assembly and the power tool.

3. The power tool kit according to claim 1, characterized in that: When the first switch is in the third state, each time the second switch is pressed, the state of the motor changes once: from on to off or from off to on.

4. The power tool kit according to claim 1, characterized in that: The power tool also includes a body, the motor is located inside the body, the first switch is arranged in the body and exposed outside the body; the auxiliary handle assembly can be connected to either side of the left or right side of the power tool.

5. The power tool kit according to claim 4, characterized in that: The power tool also includes a telescopic tube which can be extended forwardly outside the body and retracted backwardly into the body, and the auxiliary handle assembly can be detachably combined with the body.

6. The power tool kit according to claim 1, characterized in that: The auxiliary handle assembly comprises an elongated grip and a head assembly, wherein the head assembly comprises a shell which can be fixed together with the grip, and the second switch is arranged in the shell and exposed outside the shell.

7. The power tool kit according to claim 6, characterized in that: The housing comprises a first end portion close to the handle and a second end portion opposite to the first end portion and far from the handle, and the second switch is located at the first end portion.

8. The power tool kit according to claim 6, characterized in that: The shell is provided with a first opening corresponding to at least partially accommodating the second switch; the shell includes a first side wall, a second side wall, a third side wall, and a fourth side wall, the first side wall and the second side wall are spaced opposite to each other front and back, the third side wall and the fourth side wall are located on the left and right sides of the shell and are respectively connected between the first side wall and the second side wall, and the first opening is opened on the first side wall or the second side wall.

9. The power tool kit according to claim 6, characterized in that: The auxiliary handle assembly also includes a battery clamp for clamping the battery, and the shell is also provided with a second opening corresponding to the battery clamp, and the second opening is used for the battery clamp to enter and exit the shell.

10. The power tool kit according to claim 6, characterized in that: The handle also includes a gripping portion, and the auxiliary handle assembly also includes a flange portion located between the shell and the gripping portion. The second switch and the gripping portion are located on opposite sides of the flange portion, and the flange portion is provided with a clearance notch corresponding to the position of the second switch.

11. The power tool kit according to claim 10, characterized in that: The flange part is in the shape of a circular ring with a defect, and is arranged at one end of the handle to form a part of the handle, or is arranged at one end of the shell to form a part of the shell.

12. The power tool kit according to claim 6, characterized in that: The auxiliary handle assembly includes a coupling device that can be fixed to the power tool, the coupling device includes a fastening element, and the coupling device can be locked to the power tool through a fastening unit to lock the auxiliary handle assembly to the power tool. The head assembly also includes a strap, the handle and the strap are located on opposite sides of the shell, the coupling device is retained on the strap, and a portion of the strap is accommodated in the coupling device.

13. The power tool kit according to claim 12, characterized in that: The fastening element is a positioning knob, which includes a knob portion and a stud extending beyond the knob portion. The combining device includes a first retaining wall that can be removably locked to the power tool through the positioning knob. The first retaining wall is provided with a first hole, and the power tool is provided with a second hole. The stud can be inserted into the first hole and the second hole and screwed and locked with the second hole. The first hole passes through the first retaining wall.

14. The power tool kit according to claim 13, characterized in that: When the auxiliary handle assembly is separated from the power tool, the positioning knob is movably retained on the first retaining wall. The combining device also includes a first spring sleeved on the stud and a limiting ring retained on the stud. The limiting ring and the positioning knob are located on opposite sides of the first retaining wall. The first spring is limited between the limiting ring and the first retaining wall. When the auxiliary handle assembly is in a state of being locked to the power tool, one of the opposite ends of the first spring is pressed against the first retaining wall and the other of the opposite ends of the first spring is pressed against the limiting ring.

15. The power tool kit according to claim 13, characterized in that: The power tool is provided with a first embedding groove and a first baffle plate blocking one side of the first embedding groove. The combining device also includes a second embedding groove and a second baffle wall blocking one side of the second embedding groove. When the auxiliary handle assembly is in a state of being locked to the power tool, the second baffle wall is at least partially embedded in the first embedding groove and the first baffle plate is at least partially embedded in the second embedding groove.

16. The power tool kit according to claim 15, characterized in that: The auxiliary handle assembly also includes a first retaining wall. When the power tool includes a first upper surface and a first side surface, the first upper surface is located on the upper side of the power tool, and the first side surface is located on one of the left and right sides of the power tool. The first side surface and the second retaining wall are spaced apart to form the first embedding groove. When the auxiliary handle assembly is in a state of being locked to the power tool, the first retaining wall is abutted against the first upper surface and the second retaining wall is abutted against the first side surface.

17. The power tool kit according to claim 12, characterized in that: The combining device also includes a first retaining wall, a second retaining wall, and a first hole passing through the first retaining wall. When the first retaining wall is locked to the power tool by the fastening element, the first retaining wall is pressed downward against the upper side of the power tool, and the second retaining wall is pressed leftward against the right side of the power tool or rightward against the left side of the power tool; the power tool also includes a first recess, a second recess, and a second hole passing through the first recess. The first recess is located on the upper side of the power tool, and the second recess is located on one of the left and right sides of the power tool. The fastening unit can be inserted into the first hole and the second hole and screwed and locked with the second hole. When the auxiliary handle assembly is in a state of being locked to the power tool, the first retaining wall is accommodated in the first recess and the second retaining wall is accommodated in the second recess.

18. The power tool kit according to claim 17, characterized in that: The first recess is located on the upper side of the power tool, and the second recess is located on one of the left and right sides of the power tool. The power tool is also provided with a first embedding groove, which is connected with the second recess and is located on the lower side of the second recess. When the auxiliary handle assembly is in a state of being locked to the power tool, the lower edge of the second retaining wall is embedded in the first embedding groove.

19. The power tool kit according to claim 1, characterized in that: The power tool is a vacuum cleaner; the auxiliary handle assembly also includes a first wireless communication module, a battery for powering the first wireless communication module, and a second switch electrically connected to the first wireless communication module; the power tool is provided with a second wireless communication module corresponding to the first wireless communication module for wireless communication.

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