Double-headed electric power tool

Abstract

The application relates to a double-head electric tool, which comprises a main body, a driving assembly accommodated in the main body, a first output connected to one end of the driving assembly, a second output connected to the other end of the driving assembly, a holding part connected to the main body, and a switching assembly for switching the first output and the second output, wherein the first output and the second output are located on two sides of the holding part, and the rotating speed of the first output is smaller than that of the second output. Therefore, a user only needs one tool to meet two use requirements, greatly improving the product experience of the user; two tools are integrated on one product, reducing the storage space required by the user, and the applicability is good.

Description

[0001] This application is a divisional application of Chinese patent application No. 202210639356.4, filed on June 8, 2022, entitled "Double-headed Power Tool". [Technical Field]

[0002] This invention relates to a power tool used in home decoration, construction and other applications, and particularly to a double-headed power tool with two output sections. [Background Technology]

[0003] Power tools are a type of machine that uses an electric motor to drive the output unit to perform operations on workpieces. Depending on the type of output unit, they can perform various functions such as fastening, cutting, polishing, grinding, and drilling, thus meeting the diverse needs of users.

[0004] Among the various DIY crafts, screwdrivers (for tightening) and electric grinders (for sanding) are frequently used, often requiring both tools to be used simultaneously. This forces users to fetch both tools repeatedly, which is inconvenient. Purchasing both screwdrivers and electric grinders undoubtedly increases the user's operating costs. Furthermore, with rising housing prices leading to smaller living spaces, multiple tools will occupy more living space, which is also disadvantageous for users.

[0005] Therefore, it is indeed necessary to provide a new type of double-headed power tool to overcome the shortcomings of existing technology. [Summary of the Invention]

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a more widely applicable double-headed power tool.

[0007] The present invention solves the problems of the prior art by adopting the following technical solution: a double-headed power tool, comprising a main body, a drive assembly housed in the main body, a first output part connected to one end of the drive assembly, a second output part connected to the other end of the drive assembly, a grip part connected to the main body, and a switching assembly for switching the first output part and the second output part, wherein the first output part and the second output part are located on both sides of the grip part, and the rotational speed output by the first output part is less than the rotational speed output by the second output part.

[0008] A further improvement is as follows: the dual-head power tool includes a circuit board connected to the drive assembly, and a control assembly and a switch assembly connected to the circuit board. The circuit board and the switch assembly are disposed on the grip portion, and the control assembly is disposed on the main body portion.

[0009] A further improvement is as follows: the control component includes a first control component connected to the first output and a second control component connected to the second output, wherein the first control component is located in a region closer to the first output and the second control component is located in a region closer to the second output.

[0010] A further improvement is as follows: the drive assembly includes a motor assembly disposed within the main body, a first transmission assembly connected between the motor assembly and the first output unit, and a second transmission assembly connected between the motor assembly and the second output unit; the dual-head power tool includes a switching assembly mounted on the main body, the switching assembly being connected between the first transmission assembly and the second transmission assembly.

[0011] A further improvement is that the switching component is located between the first control component and the second control component.

[0012] A further improvement is that the control component includes a status indicator light, which is located between the second control component and the second output unit.

[0013] A further improvement is that the first output unit is controlled in cooperation with the switching component and the first control component, while the second output unit is controlled by the second control component.

[0014] A further improvement is as follows: the first control component includes a first button and a second button for controlling the first output unit, the first button and the second button being located between the first output unit and the switch component.

[0015] A further improvement is as follows: the first output part and the second output part are different; the first output part is a screwdriver, and the second output part is an electric grinder.

[0016] A further improvement is that, in the front-rear direction of the main body, the distance between the axis of the gripping part and the end of the first output part is greater than the distance between the axis of the gripping part and the end of the second output part.

[0017] Compared with the prior art, the present invention has the following beneficial effects: users only need one tool to meet two usage needs, greatly improving the user's product experience; integrating two tools into one product also reduces the storage space required by the user and improves applicability; in the front-back direction of the main body, the distance between the axis of the grip and the end of the first output part is greater than the distance between the axis of the grip and the end of the second output part. The first output part is a screwdriver, which is convenient for users to use in narrow spaces when working; while the second output part is an electric grinder, and the grip is close to the second output part, which is conducive to users to perform fine grinding operations. [Attached Image Description]

[0018] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the double-headed power tool of the present invention;

[0020] Figure 2 yes Figure 1 Top view of the double-headed power tool shown;

[0021] Figure 3 yes Figure 1 The bottom view of the double-headed power tool shown;

[0022] Figure 4 yes Figure 1 The diagram shown illustrates the first usage state of the double-headed power tool.

[0023] Figure 5 yes Figure 1 The diagram shown illustrates the second usage state of the double-headed power tool.

[0024] Figure 6 yes Figure 1 The diagram shows the internal structure of a double-headed power tool after removing half of its shell.

[0025] Figure 7 yes Figure 1 The diagram shows a cross-sectional view of a dual-head power tool in its first working mode.

[0026] Figure 8 yes Figure 1 The diagram shown is a cross-sectional view of a dual-head power tool in its second working mode.

[0027] Figure 9 yes Figure 7 Enlarged view of circle A in the double-headed power tool shown;

[0028] Figure 10 yes Figure 8 Enlarged view of circle B in the double-headed power tool shown;

[0029] Figure 11 yes Figure 7 The diagram shows the switch locking structure in the first working mode of the double-headed power tool.

[0030] Figure 12 yes Figure 8 The diagram shows the switch locking mechanism in the second working mode of the double-headed power tool.

[0031] Figure 13 yes Figure 11 The diagram shows the switch locking structure in the first operating mode from another angle.

[0032] Figure 14 yes Figure 12 The diagram shown is a schematic of the switch locking structure in the second operating mode from another angle.

[0033] Figure 15 yes Figure 6 The diagram shows the structure of the switching knob in the dual-head power tool.

[0034] Figure 16 yes Figure 15 A schematic diagram of the switch knob from another angle;

[0035] Figure 17 yes Figure 6 The diagram shows the structure of the connecting plate in the double-headed power tool.

[0036] Figure 18 yes Figure 6 The diagram shows the structure of the locking mechanism in the double-headed power tool shown.

[0037] Figure 19 yes Figure 6 The diagram shows the structure of the central rotating component of a dual-head power tool.

Detailed Implementation Methods

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0039] Please see Figures 1 to 5 As shown, an embodiment of the present invention relates to a dual-head power tool 100, which includes a housing, a drive assembly housed within the housing, a first output section 1 connected to one end of the drive assembly, a second output section 2 connected to the other end of the drive assembly, a switch assembly 5 mounted on the housing, and a battery pack 200 connected to the housing. The battery pack 200 supplies power to the drive assembly to drive the first output section 1 and the second output section 2 to perform operations. The battery pack 200 is a rechargeable lithium battery pack.

[0040] In this embodiment, on one hand, the housing includes two symmetrically arranged and concave semi-shells, which together form an internal space, into which the drive assembly and battery pack 200 can be easily assembled.

[0041] On the other hand, the aforementioned housing includes a main body 101 extending in a front-to-back direction and generally cylindrical, and a gripping part 102 arranged at an angle relative to the main body 101. The drive assembly is housed within the main body 101. The first output part 1 and the second output part 2 both extend to the outside of the main body 101, with the first output part 1 located at the front of the main body 101 and the second output part 2 located at the rear of the main body 101, i.e., the first output part 1 and the second output part 2 are located at opposite ends of the main body 101. Furthermore, a first working head 300 is mounted on the first output part 1, and a second working head 400 is mounted on the second output part 2. The first working head 300 and the second working head 400 are different from each other, enabling the dual-head power tool 100 to output two different working modes simultaneously. Users only need one tool to meet two usage needs, greatly improving the user's product experience; integrating two tools into one product also reduces the storage space required by the user; and the two outputs are located at opposite ends of the main body 101, so that the first output 1 and the second output 2 are separated and do not interfere with each other when working, ensuring high safety.

[0042] Furthermore, the axis of the first output unit 1 and the axis of the second output unit 2 are parallel to or coincide with each other.

[0043] Furthermore, the angle between the axis of the gripping portion 102 and the axis of the first output portion 1 is not less than the angle between the axis of the gripping portion 102 and the axis of the second output portion 2. That is, the axis of the gripping portion 102 and the axis of the first output portion 1 are arranged perpendicularly or at an angle.

[0044] In this embodiment, the switch assembly 5 and the battery pack 200 are both installed in the grip 102, and the battery pack 200 is installed inside the grip 102 to reduce the size of the double-headed power tool 100, making the whole machine more compact and easier to operate. Correspondingly, the grip 102 is provided with a charging port 201 for charging the battery pack 200. The charging port 201 is located at the bottom of the grip 102 away from the main body 101, making the overall appearance of the machine cleaner.

[0045] Please combine Figure 4 and Figure 5As shown, two user operation modes are demonstrated here, each corresponding to the operation of a different output unit. The dual-head power tool 100 includes a pressing area 108 for the user to touch. The pressing area 108 is distributed on the grip portion 102 and the main body portion 101 on the side near the second output unit 2, while the switch assembly 5 is located on the side of the grip portion 102 facing the first output unit 1. That is, the switch assembly 5 and the pressing area 108 are located on opposite sides of the grip portion 102.

[0046] Please see Figure 4 As shown, a first working head 300 is mounted on the first output section 1. The first output section 1 is a screwdriver, and the first working head 300 is a screwdriver bit. The first working head 300 is inserted into the first output section 1 and performs a tightening operation under the action of the drive assembly. At this time, the user can perform the operation by holding the grip section 102 and pressing the switch assembly 5 on it.

[0047] Please see Figure 5 As shown, a second working head 400 is mounted on the second output section 2. The second output section 2 is an electric grinder, and the second working head 400 is an electric grinder head. The second working head 400 is plugged into the second output section 2 and performs grinding operations under the action of the drive assembly. At this time, the user can firmly control the entire double-headed power tool 100 by holding the grip section 102 with their index finger and thumb pressing against the pressing area 108.

[0048] It is understandable that since the main body 101 extends longitudinally and has an area for the user's palm to grip, the user can also perform operations by directly gripping the main body 101 without using the gripping part 102.

[0049] In this embodiment, in the front-rear direction extending from the main body 101, the distance between the axis of the grip 102 and the end of the first output part 1 is greater than the distance between the axis of the grip 102 and the end of the second output part 2. That is, the grip 102 is located on the side of the main body 101 that is away from the first output part 1 and close to the second output part 2. Since the first output part 1 is a screwdriver, it shakes a lot during operation. The grip 102 being away from the first output part 1 makes the tool more balanced, the user more comfortable to operate, less fatigued, and convenient for the user to use in narrow spaces. On the other hand, the second output part 2 is an electric grinder, and the grip 102 being close to the second output part 2 is beneficial for the user to perform fine grinding operations.

[0050] In this embodiment, the torque value output by the first output unit 1 is greater than the torque value output by the second output unit 2.

[0051] Furthermore, the rotational speed output by the first output unit 1 is less than the rotational speed output by the second output unit 2.

[0052] Please see Figure 1 , Figure 2 and Figure 6 As shown, the aforementioned double-headed power tool 100 includes a circuit board 9 connected to the drive assembly and a control assembly 3 connected to the circuit board 9. The circuit board 9 is placed inside the grip portion 102, and the control assembly 3 is disposed on the main body portion 101. The switch assembly 5 is also connected to the circuit board 9 and controls the start and stop of the drive assembly.

[0053] In this embodiment, the control component 3 is used to control the output parameters of the first output unit 1 and the second output unit 2. The control component 3 includes a first control component 31 connected to the first output unit 1, a second control component 32 connected to the second output unit 2, and an indicator light 33 for status display. The first control component 31 is located in a region closer to the first output unit 1, the second control component 32 is located in a region closer to the second output unit 2, and the indicator light 33 is located between the second control component 32 and the second output unit 2. The second control component 32 is located between the indicator light 33 and the first control component 31.

[0054] Furthermore, the aforementioned first control component 31 includes a first button 311 and a second button 312 for controlling the first output unit 1. The first button 311 is located between the first output unit 1 and the second button 312. The first button 311 is a forward rotation and torque adjustment button, and the second button 312 is a reverse rotation button. Pressing the second button 312 controls the first output unit 1 to reverse, and pressing the first button 311 controls the first output unit 1 to switch between forward rotation and multiple different preset torque values. The second control component 32 includes a third button 321 for controlling the second output unit 2. Pressing the third button 321 controls the second output unit 2 to switch between start, stop, and multiple different preset torque values.

[0055] Furthermore, the aforementioned indicator light 33 is electrically connected to the first control component 31 and the second control component 32, and is used to display the output parameters of the first output unit 1 and the second output unit 2 to the user. The indicator light 33 includes three LEDs arranged side by side in the front-to-back direction, and different parameters are displayed by the number of LEDs lit. The number of LEDs lit by the indicator light 33 can also display the remaining power of the battery pack 200, and the color change of the indicator light 33 can also indicate the status of the dual-head power tool 100 to the user. For example, a green light indicates that the tool is in normal condition, and a red light indicates that the tool is in a faulty condition.

[0056] In this embodiment, the first output unit 1 is controlled by the switch assembly 5 and the first control assembly 31 in cooperation, while the second output unit 2 is controlled only by the second control assembly 32.

[0057] Please see Figure 1As shown, the control component 3 and the grip 102 are located between the first output part 1 and the second output part 2, and the control component 3 is located on the upper side of the main body 101, while the grip 102 is located on the lower side of the main body 101. In the front-back direction, the projections of the control component 3 and the grip 102 on the main body 101 at least partially overlap, thereby shortening the length of the main body 101 and facilitating the compactness and miniaturization of the double-headed power tool 100.

[0058] Please see Figures 6 to 8 As shown, the drive assembly includes a motor assembly 4 housed within the main body 101, a first transmission assembly 10 connecting the motor assembly 4 and the first output unit 1, a second transmission assembly 20 connecting the motor assembly 4 and the second output unit 2, and a switching assembly 8 connecting the first transmission assembly 10 and the second transmission assembly 20. The first transmission assembly 10 and the second transmission assembly 20 are located at opposite ends of the motor assembly 4. The switching assembly 8 controls the motor assembly 4 to selectively drive the first output unit 1 via the first transmission assembly 10 or the second output unit 2 via the second transmission assembly 20. That is, the dual-head power tool 100 has a first state and a second state for user operation. In the first state, the first output unit 1 operates while the second output unit 2 does not operate; in the second state, the second output unit 2 operates while the first output unit 1 does not operate. The switching assembly 8 is connected to the drive assembly, and operation of the switching assembly 8 switches between the first state and the second state. By providing the switching assembly 8 between the first transmission assembly 10 and the second transmission assembly 20, when using the dual-head power tool 100, only one of the first output unit 1 and the second output unit 2 can operate, greatly improving user safety.

[0059] Please combine Figure 1 As shown, the switching component 8 is located between the first control component 31 and the second control component 32 to separate the first control component 31 and the second control component 32, effectively preventing user misoperation.

[0060] Please see Figures 6 to 8 As shown, the motor assembly 4 includes a first motor shaft 41 extending toward the first transmission assembly 10 and a second motor shaft 42 extending toward the second transmission assembly 20. The first transmission assembly 10 includes a first transmission portion 11 connected to the first output portion 1 and a first clutch 12 movably connecting the first motor shaft 41 and the first transmission portion 11. The second transmission assembly 20 includes a second transmission portion 21 connected to the second output portion 2 and a second clutch 22 movably connecting the second motor shaft 42 and the second transmission portion 21. The switching assembly 8 is connected between the first clutch 12 and the second clutch 22.

[0061] In this embodiment, the switching assembly 8 includes a switching button 81 mounted on the main body 101, a connecting plate 82 connected between the first transmission assembly 10 and the second transmission assembly 20, a first connecting member 83 connecting the first clutch 12 and the switching button 81, a second connecting member 84 connecting the switching button 81 and the connecting plate 82, a third connecting member 85 connecting the connecting plate 82 and the second clutch 22, and a fourth connecting member 86 connecting the first transmission part 11 and the switching button 81. Moving the switching button 81 causes the connecting plate 82, the first connecting member 83, the second connecting member 84, the third connecting member 85, and the fourth connecting member 86 to move together, thereby switching the positions of the first clutch 12 and the second clutch 22.

[0062] Alternatively, the first connecting piece 83 can also be connected between the first clutch piece 12 and the connecting plate 82. Moving the switching knob 81 can also drive the first clutch piece 12 to move.

[0063] In this embodiment, the first connector 83, the second connector 84, the third connector 85 and the fourth connector 86 are all steel wires.

[0064] Please see Figure 7 and Figure 8 As shown, the aforementioned double-headed power tool 100 has a first working mode for driving the first output unit 1 and a second working mode for driving the second output unit 2. In the first working mode, the first transmission part 11 is connected to the first motor shaft 41 via the first clutch 12, and the second transmission part 21 is disengaged from the second motor shaft 42. In the second working mode, the second transmission part 21 is connected to the second motor shaft 42 via the second clutch 22, and the first transmission part 11 is disengaged from the first motor shaft 41.

[0065] In this embodiment, the first clutch 12 includes a first groove 121 recessed radially inward from the outer periphery, the second clutch 22 includes a second groove 221 recessed radially inward from the outer periphery, one end of the first connector 83 is connected to the connecting plate 82 or the switching knob 81, and the other end is held in the first groove 121; one end of the third connector 85 is connected to the connecting plate 82, and the other end is held in the second groove 221.

[0066] Please see Figure 15 and Figure 16 As shown, the switch button 81 includes shoulder parts 811 on the left and right sides, a toggle part 812 on the upper side of the shoulder parts 811, and a first groove 813, a second groove 814, and a third groove 815 on the lower side of the shoulder parts 811. The toggle part 812 protrudes outside the main body 101 to facilitate user operation. The second connector 84 is placed in the first groove 813, the first connector 83 is placed in the third groove 815, and the fourth connector 86 is placed in the second groove 814.

[0067] Please combine Figures 9 to 14 As shown, the aforementioned double-headed power tool 100 includes a slide groove 103 extending from the inner wall of the main body 101, a switch button 81 housed within the slide groove 103, and a shoulder 811 reciprocating within the slide groove 103.

[0068] In this embodiment, the fourth connector 86 is located between the first connector 83 and the second connector 84. The fourth connector 86 is biased toward the switch button 81 to prevent the switch button 81 from shaking during operation.

[0069] Please see Figure 6 , Figure 11 and Figure 12 As shown, the first transmission part 11 includes a connecting post 111 that protrudes radially outward from the outer periphery, and the second connecting member 84 includes an annular portion 841 sleeved on the connecting post 111. Furthermore, the switching knob 81 and the connecting plate 82 are located on opposite sides of the motor assembly 4, with the annular portion 841 positioned approximately in the middle of the switching knob 81 and the connecting plate 82. When the switching knob 81 moves in the front-back direction, it causes the second connecting member 84 to pivot around the annular portion 841, thereby causing the connecting plate 82 to move in the front-back direction.

[0070] Please combine Figure 17 As shown, the connecting plate 82 includes a base plate 823 extending along the axial direction of the motor assembly 4, a first end 821 near the first transmission assembly 10, a second end 822 near the second transmission assembly 20, a guide seat 827 protruding from the first end 821 toward the first transmission assembly 10, a second bayonet 824 extending from the second end 822 toward the second transmission assembly 20, and a first bayonet 828 disposed on the side of the guide seat 827. The base plate 823 is connected between the first end 821 and the second end 822. The second connector 84 is held in the first bayonet 828, and the third connector 85 is installed in the second bayonet 824.

[0071] Furthermore, the aforementioned double-headed power tool 100 includes receiving portions 104 and 105 extending from the inner wall of the main body 101. The base plate 823 is supported on the receiving portions 104 and 105 and moves along the receiving portions 104 and 105. The end face of the guide seat 827 facing the first transmission assembly 10 is provided with a guide surface 825. The shape of the guide surface 825 matches the outer peripheral surface of the first transmission assembly 10 to limit and guide the forward and backward movement of the connecting plate 82.

[0072] Furthermore, the aforementioned guide seat 827 also includes a recess 826 recessed inward from the upper end of the guide surface 825. The recess 826 removes part of the material used in the guide seat 827, which reduces the material cost of the connecting plate 82 and makes the connecting plate 82 lighter, making it easier for users to switch working modes.

[0073] Please combine Figure 7 and Figure 8 As shown, in this embodiment, the first output part 1 is a screwdriver, and the corresponding first transmission part 11 is a planetary gear transmission structure; while the second output part 2 is an electric grinder, and the corresponding second transmission part 21 is an electric grinder output shaft; the drive assembly also includes a shaft lock structure 130 connected to the second transmission part 21. Pressing the shaft lock structure 130 prevents the electric grinder output shaft from rotating, thereby facilitating the user to replace the electric grinder head.

[0074] In this embodiment, the housing also includes an air inlet 140 and an air outlet 150 that connect the internal space. The drive assembly includes a fan connected to the motor assembly 4. External cooling air enters the internal space through the air inlet 140 under the action of the fan and dissipates heat from the drive assembly. Then, it is discharged outward from the air outlet 150.

[0075] Please refer to the following: Figures 6 to 14 As shown, the aforementioned double-headed power tool 100 includes a switch locking structure connected to the switch assembly 5. The switch locking structure has an unlocked first position and a locked second position. In the first position, the switch assembly 5 is not blocked by the switch locking structure, and the switch assembly 5 can be pressed normally to start the motor assembly 4. In the second position, the switch assembly 5 is blocked by the switch locking structure, and the switch assembly 5 cannot be electrically connected to the motor assembly 4, thus preventing the motor assembly 4 from starting. Furthermore, the switch locking structure is connected to a switching assembly 8, which moves between the first transmission assembly 10 and the second transmission assembly 20, thereby causing the switch locking structure to move between the first and second positions. In the first state, only the first output unit 1 operates, while the second output unit 2 does not. The switch locking structure is in the unlocked first position, and the first output unit 1 can be normally triggered and operated by the switch assembly 5. In the second state, only the second output unit 2 operates, and the first output unit 1 does not need to operate. The switch locking structure is in the locked second position. Even if the user operates while holding the grip part 102, the switch assembly 5 will not be accidentally triggered, greatly improving the safety of use. Furthermore, the position of the switch locking structure moves with the movement of the switching assembly 8, without the need for additional parts to operate. That is, while moving the switching assembly 8, the double-headed power tool 100 switches between the first and second states, and the position of the switch locking structure also changes, making it more convenient for the user.

[0076] In this embodiment, the switch locking structure includes a pivot 6 connected to the connecting plate 82 of the switching assembly 8 and a locking member 7 connected to the pivot 6, combined with... Figure 19As shown, the pivot member 6 includes a pivot body 61 connected to the housing, a first rib 62 and a second rib 63 extending radially outward from the outer periphery of the pivot body 61, and a limiting part 64 extending along the axis toward the inner wall of the housing from the end of the pivot body 61. The first rib 62 and the second rib 63 are spaced apart, and the first rib 62 is connected to the connecting plate 82, and the second rib 63 is connected to the locking member 7. During the movement of the connecting plate 82, the pivot body 61 will rotate, and the pivot body 61 will then drive the locking member 7 to move.

[0077] Please refer to the following: Figure 9 and Figure 10 As shown, the switch assembly 5 includes a switch unit installed in the housing, a trigger 51 connected to the housing, a protrusion 52 extending from the end face of the trigger 51 toward the locking member 7, a trigger portion 53 connected to the switch unit, an elastic member 54 connected to the trigger 51, and a receiving groove 55 recessed inward from the end of the protrusion 52. The housing includes a first wall 106 extending from the inner wall along the axis of the pivot 61. One end of the elastic member 54 is placed in the receiving groove 55, and the other end abuts against the first wall 106. Furthermore, the elastic member 54 extends between the first wall 106 and the trigger 51 and passes through the clearance portion 72. The elastic member 54 is biased toward the trigger 51.

[0078] Please combine Figure 18 As shown, the locking member 7 includes a stop portion 71 corresponding to the protrusion 52, a second connecting groove 73 that accommodates the second rib 63, and a clearance portion 72 disposed between the second connecting groove 73 and the stop portion 71. The locking member 7 is located between the first wall 106 and the trigger 51. When the switch locking structure is in the second position, pressing the trigger 51 causes the protrusion 52 to abut against the stop portion 71, preventing the trigger portion 53 from activating the switch unit, thus preventing the switch assembly 5 from activating the motor assembly 4. When the switch locking structure is in the first position, pressing the trigger 51 causes the stop portion 71 to not block the protrusion 52, allowing the protrusion 52 to pass through the clearance portion 72 and drive the trigger portion 53 to activate the switch unit, thereby enabling the switch assembly 5 to normally activate the motor assembly 4.

[0079] Please combine Figure 17 As shown, the connecting plate 82 includes a first connecting groove 829 for receiving the first rib 62. Moving the connecting plate 82 causes the first rib 62 and the second rib 63 to rotate around the pivot body 61, thereby causing the locking member 7 to move between the first position and the second position.

[0080] Please see Figure 13 and Figure 14As shown, the aforementioned housing includes a support column 120 extending from the inner wall along the axis of the pivot 61, and a first baffle 121 and a second baffle 122 extending radially outward from the outer periphery of the support column 120. The first baffle 121 and the second baffle 122 are spaced apart. The pivot 61 is sleeved on the outer periphery of the support column 120, and the limiting part 64 moves between the first baffle 121 and the second baffle 122 to limit the movement of the pivot 6.

[0081] Furthermore, the aforementioned limiting part 64, the first baffle 121, and the second baffle 122 are all located between the inner wall of the housing and the pivot body 61.

[0082] In this embodiment, the housing further includes a second wall 107 and a third wall 108 extending from the inner wall along the axis of the pivot 61. The locking member 7 is located between the second wall 107 and the third wall 108 and guides the movement of the locking member 7 via the second wall 107 and the third wall 108.

[0083] The dual-head power tool 100 of this invention allows users to meet two usage needs with just one tool, greatly enhancing the user experience. Integrating two tools into one product also reduces the storage space required by the user. Furthermore, the two output sections are located at opposite ends of the main body 101, separating the first output section 1 and the second output section 2, ensuring that they do not interfere with each other during operation and enhancing safety. By setting a switching component 8 between the first transmission component 10 and the second transmission component 20, only one of the first output section 1 and the second output section 2 can operate when using the dual-head power tool 100, greatly improving user safety. The dual-head power tool 100 also has a switch-locking structure linked to the switching component 8, enhancing user safety when working in the second state. Moreover, the position of the switch-locking structure moves with the movement of the switching component 8, requiring no additional parts for operation, making it more convenient for the user.

[0084] This invention is not limited to the specific embodiments described above. Those skilled in the art will readily understand that many other alternatives to the double-headed power tool of this invention can be developed without departing from the principles and scope of the invention. The scope of protection of this invention is defined by the claims.

Claims

1. A double-headed power tool, characterized in that: The dual-head power tool includes a main body, a drive assembly housed within the main body, a first output portion connected to one end of the drive assembly, a second output portion connected to the other end of the drive assembly, a grip portion connected to the main body, and a switching assembly for switching the first output portion and the second output portion, wherein the first output portion and the second output portion are located on both sides of the grip portion; The drive assembly includes a motor assembly, a first transmission assembly, and a second transmission assembly disposed within the main body. The motor assembly includes a first motor shaft extending toward the first transmission assembly and a second motor shaft extending toward the second transmission assembly. The first transmission assembly is connected between the first motor shaft and the first output section and includes a planetary gear transmission structure connected to the first output section. The second transmission assembly is connected between the second motor shaft and the second output section and includes an electric mill output shaft. The rotational speed output by the first output section is less than the rotational speed output by the second output section. The main body includes a first part housing the first transmission component and a second part housing the second transmission component. The distance between the upper top surface of the first part and the axis of the motor component is greater than the distance between the upper top surface of the second part and the axis of the motor component. The switching component includes a switching button mounted on the main body and a connecting plate driven by the switching button. The switching button and the connecting plate are located on opposite sides above and below the motor component. The switching button is located in the first part, and the connecting plate extends in the first part and the second part.

2. The double-headed power tool according to claim 1, characterized in that: The dual-head power tool includes a circuit board connected to the drive assembly, and a control assembly and a switch assembly connected to the circuit board. The circuit board and the switch assembly are disposed on the grip portion, and the control assembly is disposed on the main body portion.

3. The double-headed power tool according to claim 2, characterized in that: The control component includes a first control component connected to the first output and a second control component connected to the second output, wherein the first control component is located in a region closer to the first output and the second control component is located in a region closer to the second output.

4. The double-headed power tool according to claim 3, characterized in that: The switching component is located between the first control component and the second control component.

5. The double-headed power tool according to claim 3, characterized in that: The control component includes a status indicator light located between the second control component and the second output unit.

6. The double-headed power tool according to claim 3, characterized in that: The first output unit is controlled in conjunction with the switching assembly and the first control assembly, while the second output unit is controlled by the second control assembly.

7. The double-headed power tool according to claim 3, characterized in that: The first control component includes a first button and a second button for controlling the first output unit, and the first button and the second button are located between the first output unit and the switch component.

8. The double-headed power tool according to claim 1, characterized in that: The first output section and the second output section are different; the first output section is a screwdriver, and the second output section is an electric grinder.

9. The double-headed power tool according to claim 8, characterized in that: In the front-rear direction extending from the main body, the distance between the axis of the grip portion and the end of the first output portion is greater than the distance between the axis of the grip portion and the end of the second output portion.

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