CN114986453A

CN114986453A - Double-head electric tool

Info

Publication number: CN114986453A
Application number: CN202210639643.5A
Authority: CN
Inventors: 费鸿剑; 张荐
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-09-02
Anticipated expiration: 2042-06-08
Also published as: CN114986453B

Abstract

The invention relates to a double-head electric tool, which comprises a main body part, a driving assembly accommodated in the main body part, a first output part and a second output part connected with the driving assembly, and a switching assembly arranged on the main body part, wherein the driving assembly comprises a motor assembly arranged in the main body part, a first transmission assembly connected between the motor assembly and the first output part, and a second transmission assembly connected between the motor assembly and the second output part, and the switching assembly is connected between the first transmission assembly and the second transmission assembly so as to control the motor assembly to alternatively drive the first output part or the second output part. According to the double-head electric tool, the switching assembly is arranged between the first transmission assembly and the second transmission assembly, when the double-head electric tool is used, only one of the first output part and the second output part can be used for operation, and therefore the safety of a user is greatly improved.

Description

Double-head electric tool

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electric power tool used in home decoration, construction, etc., and more particularly to a double-ended electric power tool having two output portions.

[ background of the invention ]

The electric tool is a machine which is driven by a motor to drive an output part to operate to work a workpiece, can realize various functions such as fastening, cutting, polishing, grinding, drilling and the like according to the difference of the types of the output parts, and meets the diversified requirements of users.

When DIY manual creation is carried out in a family, the use frequency of a screwdriver (for fastening operation) and an electric grinder (for grinding operation) is high, and occasions that two tools are used at the same time often appear, so that a user has to take the two tools back and forth, and the use is very inconvenient; the purchase of two tools, namely a screwdriver and an electric grinder, undoubtedly increases the use cost of users; in addition, as housing space is reduced due to the increase of housing prices, a plurality of tools occupy more living space, which is disadvantageous for users.

In view of the above, it is necessary to provide a novel double-ended power tool to overcome the drawbacks of the prior art.

[ summary of the invention ]

In view of the shortcomings of the prior art, the present invention is directed to a dual-head power tool for use in a variety of environments.

The invention solves the problems of the prior art by adopting the following technical scheme: a double-head electric tool comprises a main body part, a driving assembly accommodated in the main body part, a first output part connected to one end of the driving assembly, a second output part connected to the other end of the driving assembly and a switching assembly installed on the main body part, wherein the driving assembly comprises a motor assembly arranged in the main body part, a first transmission assembly connected between the motor assembly and the first output part and a second transmission assembly connected between the motor assembly and the second output part, and the switching assembly is connected between the first transmission assembly and the second transmission assembly so as to control the motor assembly to alternatively drive the first output part or the second output part.

The further improvement scheme is as follows: the motor assembly comprises a first motor shaft extending towards the first transmission assembly side and a second motor shaft extending towards the second transmission assembly side, the first transmission assembly comprises a first transmission part connected to the first output part and a first clutch piece movably connected with the first motor shaft and the first transmission part, the second transmission assembly comprises a second transmission part connected to the second output part and a second clutch piece movably connected with the second motor shaft and the second transmission part, and the switching assembly is connected between the first clutch piece and the second clutch piece.

The further improvement scheme is as follows: the switching assembly comprises a switching button arranged on the main body part, a connecting plate connected between the first transmission assembly and the second transmission assembly, a first clutch piece connected with the switching button or connected with the first clutch piece and a first connecting piece of the connecting plate, a second connecting piece connected with the switching button and a second connecting piece of the connecting plate connected with the third connecting piece of the second clutch piece, and the switching button is moved to drive the connecting plate, the first connecting piece, the second connecting piece and the third connecting piece to move together so as to switch the positions of the first clutch piece and the second clutch piece.

The further improvement scheme is as follows: the double-ended electric tool has a first operation mode for driving the first output portion to operate and a second operation mode for driving the second output portion to operate, in the first operation mode, the first transmission portion is connected to the first motor shaft via the first clutch, and the second transmission portion is disconnected from the second motor shaft; in the second operating mode, the second transmission part is connected to the second motor shaft via the second clutch, and the first transmission part is disengaged from the first motor shaft.

The further improvement scheme is as follows: the first clutch piece comprises a first groove which is recessed inwards from the periphery in the radial direction, the second clutch piece comprises a second groove which is recessed inwards from the periphery in the radial direction, one end of the first connecting piece is connected to the connecting plate or the switching button, and the other end of the first connecting piece is clamped in the first groove; one end of the third connecting piece is connected to the connecting plate, and the other end of the third connecting piece is clamped in the second groove.

The further improvement scheme is as follows: the double-end electric tool comprises a sliding groove extending from the inner wall of the main body part, and the switching button is contained in the sliding groove.

The further improvement scheme is as follows: the switching assembly comprises a fourth connecting piece connected with the first transmission part and the switching button, and the fourth connecting piece is positioned between the first connecting piece and the second connecting piece.

The further improvement scheme is as follows: first drive division includes the spliced pole of radially outwards protruding stretching from the periphery, the second connecting piece is located including the cover the annular portion of spliced pole, switch the button with the connecting plate is located motor element's relative both sides, annular portion is located switch the button with the approximate intermediate position of connecting plate.

The further improvement scheme is as follows: the connecting plate includes a base plate extending in an axial direction of the motor assembly, and the double-ended electric power tool includes a receiving portion extending from an inner wall of the main body portion, the base plate being supported by the receiving portion.

The further improvement scheme is as follows: the connecting plate includes the first end that is close to first transmission assembly, be close to second transmission assembly's second end and certainly first end towards the guide holder of first transmission assembly projecting, the guide holder face the terminal surface of first transmission assembly is equipped with the guide face, the shape of guide face with the outer peripheral face of first transmission assembly cooperatees.

Compared with the prior art, the invention has the following beneficial effects: by arranging the switching assembly between the first transmission assembly and the second transmission assembly, only one of the first output part and the second output part can operate when the double-head electric tool is used, so that the safety of a user is greatly improved; the switching assembly is positioned between the first control assembly and the second control assembly to space the first control assembly and the second control assembly apart, so that misoperation of a user is effectively prevented; in addition, the terminal surface that faces first transmission assembly of guide seat is equipped with the guide face to carry out spacing and guide to the back-and-forth movement of connecting plate.

[ description of the drawings ]

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:

FIG. 1 is a schematic view of the overall construction of the double-ended power tool of the present invention;

FIG. 2 is a top view of the double-ended power tool of FIG. 1;

FIG. 3 is a bottom view of the dual-headed power tool of FIG. 1;

FIG. 4 is a schematic view of the dual-headed power tool of FIG. 1 in a first state of use;

FIG. 5 is a schematic view of the dual-headed power tool of FIG. 1 in a second state of use;

FIG. 6 is an internal view of the double-ended power tool of FIG. 1 with a half shell removed;

FIG. 7 is a schematic exploded view of the dual-headed power tool of FIG. 1 in a first mode of operation;

FIG. 8 is a schematic exploded view of the dual-headed power tool of FIG. 1 in a second mode of operation;

FIG. 9 is an enlarged view of circle A of the dual head power tool of FIG. 7;

FIG. 10 is an enlarged view of circle B of the double-ended power tool of FIG. 8;

FIG. 11 is a schematic view of the switch lock configuration of the dual head power tool of FIG. 7 in a first mode of operation;

FIG. 12 is a schematic view of the switch lock configuration of the dual head power tool of FIG. 8 in a second mode of operation;

FIG. 13 is a schematic view of the switch lockout structure of FIG. 11 from another angle in a first mode of operation;

FIG. 14 is a schematic view of the switch lockout structure of FIG. 12 from another angle in a second mode of operation;

FIG. 15 is a schematic view of the switch knob of the dual head power tool of FIG. 6;

FIG. 16 is a schematic view of the switch knob of FIG. 15 at another angle;

FIG. 17 is a schematic view of the construction of the link plate in the double-ended power tool of FIG. 6;

FIG. 18 is a schematic view of the locking member of the dual head power tool of FIG. 6;

fig. 19 is a schematic view of the pivot member of the double-ended power tool of fig. 6.

[ detailed description ] embodiments

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

Referring to fig. 1 to 5, an embodiment of the present invention relates to a double-headed electric tool 100, where the double-headed electric tool 100 includes a housing, a driving assembly housed in the housing, a first output part 1 connected to one end of the driving assembly, a second output part 2 connected to the other end of the driving 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 driving assembly to drive the first output part 1 and the second output part 2 to operate, and the battery pack 200 is a lithium battery pack capable of performing a cycle charge.

In this embodiment, on the one hand, the housing comprises two symmetrically arranged and recessed half shells, which cover an inner space into which the drive assembly and the battery pack 200 can be fitted in a simple manner.

On the other hand, the housing includes a main body 101 extending in the front-rear direction and having a substantially cylindrical shape, and a grip portion 102 disposed at an angle with respect to the main body 101, the driving assembly is housed in the main body 101, the first output portion 1 and the second output portion 2 both extend to the outside of the main body 101, the first output portion 1 is located at the front side of the main body 101, and the second output portion 2 is located at the rear side of the main body 101, that is, the first output portion 1 and the second output portion 2 are located at opposite ends of the main body 101. Further, the first output part 1 is provided with the first working head 300, the second output part 2 is provided with the second working head 400, and the first working head 300 and the second working head 400 are different from each other, so that the double-headed electric tool 100 can output two different working modes at the same time. The user can meet two use requirements only by one tool, so that the product experience of the user is greatly improved; the two tools are integrated on one product, so that the storage space required by a user is reduced; the two output parts are positioned at two opposite ends of the main body part 101, so that the first output part 1 and the second output part 2 are separated, the two output parts do not interfere with each other during operation, and the safety is high.

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

Further, the included angle between the axis of the holding portion 102 and the axis of the first output portion 1 is not smaller than the included angle between the axis of the holding portion 102 and the axis of the second output portion 2. I.e. the axis of the grip portion 102 and the axis of the first output portion 1 are arranged perpendicular or inclined.

In the present embodiment, the switch assembly 5 and the battery pack 200 are both mounted on the holding portion 102, and the battery pack 200 is mounted inside the holding portion 102, so as to reduce the volume of the double-head electric tool 100, and make the whole machine more compact and smaller, and convenient to operate; correspondingly, the holding part 102 is provided with a charging port 201 for charging the battery pack 200, the battery pack 200 is charged through the charging port 201, and the charging port 201 is positioned at the bottom of the holding part 102 far away from the main body part 101, so that the appearance of the whole machine is tidier.

Referring to fig. 4 and 5, two user operation modes are taught, wherein different output parts are operated correspondingly. The dual-head power tool 100 includes a pressing area 108 for a user to touch, the pressing area 108 is distributed on one side of the grip portion 102 and the main body portion 101 close to the second output portion 2, and the switch component 5 is located on one side of the grip portion 102 facing the first output portion 1, that is, the switch component 5 and the pressing area 108 are located on two opposite sides of the grip portion 102.

Referring to fig. 4, the first output portion 1 is provided with a first working head 300, the first output portion 1 is a screw driver, the first working head 300 is a screw driver head, and the first working head 300 is inserted into the first output portion 1 and performs a fastening operation under the action of the driving assembly. At this time, the user can perform the operation by holding the grip portion 102 with the hand and pressing the switch unit 5 thereon.

Referring to fig. 5, the second output portion 2 is provided with a second working head 400, the second output portion 2 is an electric grinder, the second working head 400 is an electric grinding head, the second working head 400 is inserted into the second output portion 2, and the second working head 400 performs a grinding operation under the action of the driving assembly. At this time, the user can hold the grip portion 102 with his hand, and the index finger and the thumb are pressed against the pressing area 108, so that the whole double-headed electric tool 100 can be firmly controlled.

It can be understood that, since the main body 101 extends in a longitudinal shape and has a region for the palm of the user to grip, the user can directly grip the main body 101 without using the grip 102 to perform work.

In the present embodiment, in the front-rear direction in which the main body portion 101 extends, the distance between the axis of the grip portion 102 and the end of the first output portion 1 is greater than the distance between the axis of the grip portion 102 and the end of the second output portion 2, that is, the grip portion 102 is located on the side of the main body portion 101 that is away from the first output portion 1 and closer to the second output portion 2. Because the first output part 1 is a screwdriver, when the screwdriver is used for operation, the first output part 1 shakes greatly, and the holding part 102 is far away from the first output part 1, so that the balance of the tool is better, the user operation is more comfortable, the tool is not easy to fatigue, and the tool is convenient for the user to use in a narrow and long space; the second output part 2 is an electric grinder, and the holding part 102 is close to the second output part 2, so that the user can perform fine grinding operation.

In the present embodiment, the torque value output from the first output unit 1 is larger than the torque value output from the second output unit 2.

Further, the rotation speed output by the first output unit 1 is smaller than the rotation speed output by the second output unit 2.

Referring to fig. 1, 2 and 6, the double-ended electric tool 100 includes a circuit board 9 connected to the driving assembly and a control assembly 3 connected to the circuit board 9, the circuit board 9 is disposed in the holding portion 102, and the control assembly 3 is disposed on the main body 101; the switch assembly 5 is also connected to the circuit board 9 and controls the start and stop of the drive assembly.

In the present embodiment, the control module 3 is configured to control the output parameters of the first output unit 1 and the second output unit 2, the control module 3 includes a first control module 31 connected to the first output unit 1, a second control module 32 connected to the second output unit 2, and a display lamp 33 for displaying the status, the first control module 31 is located in a region closer to the first output unit 1, the second control module 32 is located in a region closer to the second output unit 2, the display lamp 33 is located between the second control module 32 and the second output unit 2, and the second control module 32 is located between the display lamp 33 and the first control module 31.

Further, the first control assembly 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 force adjustment button, the second button 312 is a reverse rotation button, pressing the second button 312 controls the first output unit 1 to reverse rotation, pressing the first button 311 controls the first output unit 1 to switch between the forward rotation and a plurality of different preset torque force values; the second control assembly 32 includes a third button 321 for controlling the second output portion 2, and pressing the third button 321 controls the second output portion 2 to switch between on, off, and a plurality of different preset torque values.

Further, the display lamp 33 is electrically connected to the first control component 31 and the second control component 32, and is used for displaying the output parameters of the first output part 1 and the second output part 2 to the user, the display lamp 33 includes three LED lamps arranged in parallel in the front-back direction, and different parameters are displayed by the lighting number of the LED lamps. The number of LED lights of the display light 33 that are lit may also indicate the remaining capacity of the battery pack 200, and the change in color of the display light 33 may also show the status of the double-headed power tool 100 to the user, for example, a green light indicating that the tool is in a normal state and a red light indicating that the tool is in a fault state.

In the present embodiment, the first output unit 1 is controlled in cooperation with the first control unit 31 via the switch unit 5, and the second output unit 2 is controlled only by the second control unit 32.

Referring to fig. 1, the control component 3 and the holding portion 102 are located between the first output portion 1 and the second output portion 2, the control component 3 is located on the upper side of the main body 101, and the holding portion 102 is located on the lower side of the main body 101; in the front-rear direction, the projections of the control unit 3 and the grip portion 102 on the main body portion 101 at least partially overlap, so that the length of the main body portion 101 is shortened, which is advantageous for the compactness and miniaturization of the double-headed electric power tool 100.

Referring to fig. 6 to 8, the driving assembly includes a motor assembly 4 disposed in the main body 101, a first transmission assembly 10 connected between the motor assembly 4 and the first output portion 1, a second transmission assembly 20 connected between the motor assembly 4 and the second output portion 2, and a switching assembly 8 connected between the first transmission assembly 10 and the second transmission assembly 20, the first transmission assembly 10 and the second transmission assembly 20 are disposed at two ends of the motor assembly 4, the switching assembly 8 is used for controlling the motor assembly 4 to alternatively drive the first output portion 1 via the first transmission assembly 10 or drive the second output portion 2 via the second transmission assembly 20, that is, the double-headed electric tool 100 has a first state and a second state for user operation, in which the first output portion 1 operates and the second output portion 2 does not operate; in the second state, the second output part 2 is operated while the first output part 1 is not operated, the switching member 8 is connected to the driving member, and the switching member 8 is manipulated to switch between the first state and the second state. By arranging the switching assembly 8 between the first transmission assembly 10 and the second transmission assembly 20, only one of the first output part 1 and the second output part 2 can operate when the double-head electric tool 100 is used, and the safety of a user is greatly improved.

Referring to fig. 1, the switching assembly 8 is located between the first control assembly 31 and the second control assembly 32 to space the first control assembly 31 and the second control assembly 32 apart from each other, so as to effectively prevent a user from performing a misoperation.

Referring to fig. 6 to 8, 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, and the switching assembly 8 is connected between the first clutch 12 and the second clutch 22.

In the present embodiment, the switching unit 8 includes a switching knob 81 mounted on the main body 101, a connecting plate 82 connected between the first transmission unit 10 and the second transmission unit 20, a first connecting member 83 connecting the first clutch 12 and the switching knob 81, a second connecting member 84 connecting the switching knob 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 knob 81, and the switching knob 81 is moved to move 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 together to switch the positions of the first clutch 12 and the second clutch 22.

Alternatively, the first connecting member 83 can be connected between the first clutch member 12 and the connecting plate 82, and the switching button 81 can move to drive the first clutch member 12 to move.

In the present embodiment, the first connector 83, the second connector 84, the third connector 85, and the fourth connector 86 are all steel wires.

Referring to fig. 7 and 8, the double-ended power tool 100 has a first operation mode for driving the first output part 1 to operate and a second operation mode for driving the second output part 2 to operate, in the first operation mode, the first transmission part 11 is connected to the first motor shaft 41 through the first clutch 12, and the second transmission part 21 is disconnected from the second motor shaft 42; in the second operating 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.

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

Referring to fig. 15 and 16, the switch button 81 includes a shoulder 811 disposed on the left and right sides, a toggle portion 812 disposed on the upper side of the shoulder 811, and a first groove 813, a second groove 814 and a third groove 815 disposed on the lower side of the shoulder 811, wherein the toggle portion 812 protrudes out of the main body 101 for the convenience of user operation; second connector 84 is disposed within first slot 813, first connector 83 is disposed within third slot 815, and fourth connector 86 is disposed within second slot 814.

As shown in fig. 9 to 14, the double-ended power tool 100 includes a slide groove 103 extending from an inner wall of the body 101, the switch knob 81 is accommodated in the slide groove 103, and the shoulder 811 reciprocates in the slide groove 103.

In the present embodiment, the fourth connecting member 86 is located between the first connecting member 83 and the second connecting member 84, and the fourth connecting member 86 is biased toward the switch knob 81 to prevent the switch knob 81 from shaking during operation.

Referring to fig. 6, 11 and 12, the first transmission part 11 includes a connection post 111 protruding radially outward from the outer periphery, the second connection member 84 includes a ring-shaped portion 841 sleeved on the connection post 111, and further, the switch button 81 and the connection plate 82 are located at two opposite sides of the top and bottom of the motor assembly 4, and the ring-shaped portion 841 is located at a position approximately in the middle of the switch button 81 and the connection plate 82. The switch button 81 moves in the front-rear direction, and drives the second link 84 to pivot around the ring-shaped portion 841, thereby driving the connecting plate 82 to move in the front-rear direction.

As shown in fig. 17, 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 a side surface 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.

Further, the double-headed power tool 100 includes receiving

portions

104 and 105 extending from an inner wall of the body 101, and the base plate 823 is supported by the receiving

portions

104 and 105 and moves along the receiving

portions

104 and 105; an end surface of the guide seat 827 facing the first transmission member 10 is provided with a guide surface 825, and the shape of the guide surface 825 is matched with the outer circumferential surface of the first transmission member 10 to limit and guide the forward and backward movement of the link plate 82.

Further, the guide seat 827 further includes a concave recess 826 recessed inward from the upper end surface of the guide surface 825, and the concave recess 826 removes part of the material used by the guide seat 827, so that the material cost of the connecting plate 82 is reduced, the connecting plate 82 is also lightened, and the user can switch the working mode more conveniently.

Referring to fig. 7 and 8, in the present embodiment, the first output part 1 is a screw driver, and the corresponding first transmission part 11 is a planetary gear transmission structure; the second output part 2 is an electric grinder, and the corresponding second transmission part 21 is an output shaft of the electric grinder; the drive assembly further comprises a shaft lock structure 130 connected to the second transmission part 21, which shaft lock structure 130 is pressed to prevent the output shaft of the electric grinder from rotating, thereby facilitating the user to change the electric grinder.

In this embodiment, the housing further includes an air inlet 140 and an air outlet 150 communicating with the inner space, the driving component includes a fan connected to the motor component 4, and the external cooling air enters the inner space through the air inlet 140 and dissipates heat to the driving component under the action of the fan, and then is discharged from the air outlet 150.

Referring to fig. 6 to 14, the double-ended power tool 100 includes a switch locking structure connected to the switch assembly 5, the switch locking structure having 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 normally press and 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, so that the motor assembly 4 cannot be started. Further, the switch locking structure is connected to the switching assembly 8, and the switching assembly 8 moves between the first transmission assembly 10 and the second transmission assembly 20 and drives the switch locking structure to move between the first position and the second position. In the first state, only the first output part 1 operates, the second output part 2 does not operate, the switch locking structure is located at the unlocked first position, and the first output part 1 can be normally triggered and operated by the switch assembly 5; in the second state, only the second output part 2 operates, the first output part 1 does not need to operate, the switch locking structure is located at the locked second position, and the switch assembly 5 cannot be triggered by mistake even if a user operates under the condition of holding the holding part 102, so that the use safety is greatly improved; and the position of the switch locking structure moves along with the movement of the switching component 8, and no extra part is needed for operation, that is, the switching component 8 is moved, so that the double-head electric tool 100 is driven to switch between the first state and the second state, and simultaneously the position of the switch locking structure can be driven to change, and the use is more convenient for users.

In this embodiment, the switch locking structure includes a pivot member 6 connected to a connecting plate 82 of the switching assembly 8 and a locking member 7 connected to the pivot member 6, as shown in fig. 19, the pivot member 6 includes a pivot body 61 connected to the housing, a first rib 62 and a second rib 63 protruding radially outward from an outer periphery of the pivot body 61, and a limiting portion 64 protruding from an end of the pivot body 61 toward an inner wall of the housing along an axis, the first rib 62 and the second rib 63 are spaced apart, the first rib 62 is connected to the connecting plate 82, the second rib 63 is connected to the locking member 7, the connecting plate 82 drives the pivot body 61 to rotate during movement of the connecting plate 82, and the pivot body 61 drives the locking member 7 to move.

Referring to fig. 9 and 10, the switch assembly 5 includes a switch unit installed in a housing, a trigger 51 connected to the housing, a protrusion 52 extending from an end surface 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 an end portion of the protrusion 52, the housing includes a first wall 106 extending from an inner wall along an axis of the pivoting body 61, one end of the elastic member 54 is disposed in the receiving groove 55, and the other end of the elastic member 54 abuts against the first wall 106, further, the elastic member 54 extends between the first wall 106 and the trigger 51 and passes through the relief portion 72, and the elastic member 54 is biased toward the trigger 51.

As shown in fig. 18, the locking member 7 includes a stopping portion 71 corresponding to the protrusion 52, a second connecting groove 73 accommodating the second rib 63, and an avoiding portion 72 disposed between the second connecting groove 73 and the stopping portion 71, the locking member 7 is located between the first wall 106 and the trigger 51, when the switch locking structure is located at the second position, the trigger 51 is pressed, the protrusion 52 abuts against the stopping portion 71, and the triggering portion 53 cannot start the switch unit, so that the switch assembly 5 cannot start the motor assembly 4; when the switch locking structure is located at the first position, the trigger 51 is pressed, the blocking portion 71 does not block the protrusion 52, the protrusion 52 passes through the avoiding portion 72, and the triggering portion 53 is driven to start the switch unit, so that the switch assembly 5 can normally start the motor assembly 4.

As shown in fig. 17, the connecting plate 82 includes a first connecting slot 829 for receiving the first rib 62, and the first rib 62 and the second rib 63 are driven to rotate around the pivot body 61 by moving the connecting plate 82, so as to drive the locking member 7 to move between the first position and the second position.

Referring to fig. 13 and 14, the housing includes a support column 120 extending from an inner wall along an axis of the pivot body 61, and a first blocking plate 121 and a second blocking plate 122 radially protruding outward from an outer periphery of the support column 120, the first blocking plate 121 and the second blocking plate 122 are spaced apart, the pivot body 61 is sleeved on the outer periphery of the support column 120, and the limiting portion 64 moves between the first blocking plate 121 and the second blocking plate 122 to limit the movement of the pivot member 6.

Further, the position-limiting portion 64, the first blocking plate 121 and the second blocking plate 122 are all located between the inner wall of the housing and the pivot body 61.

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 body 61, and 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 through the second wall 107 and the third wall 108.

According to the double-head electric tool 100, a user can meet two use requirements only by one tool, so that the product experience of the user is greatly improved; the two tools are integrated on one product, so that the storage space required by a user is reduced; the two output parts are positioned at two opposite ends of the main body part 101, so that the first output part 1 and the second output part 2 are separated, the two output parts do not interfere with each other during operation, and the safety is high. By arranging the switching assembly 8 between the first transmission assembly 10 and the second transmission assembly 20, only one of the first output part 1 and the second output part 2 can operate when the double-head electric tool 100 is used, and the safety of a user is greatly improved. The double-head electric tool 100 is also provided with a switch locking structure which is linked with the switching component 8, so that the working safety of a user in the second state is improved; and the position of the switch locking structure moves along with the movement of the switching assembly 8, no additional component is needed for operation, and the use is more convenient for users.

The present invention is not limited to the above-described embodiments. It will be readily appreciated by those skilled in the art that numerous other alternatives to the double-ended power tool of the present invention are possible without departing from the spirit and scope of the invention. The protection scope of the present invention is subject to the content of the claims.

Claims

1. A double-end electric tool which is characterized in that: the double-end electric tool comprises a main body part, a driving assembly contained in the main body part, a first output part connected to one end of the driving assembly, a second output part connected to the other end of the driving assembly and a switching assembly arranged on the main body part, wherein the driving assembly comprises a motor assembly arranged in the main body part, a first transmission assembly connected between the motor assembly and the first output part and a second transmission assembly connected between the motor assembly and the second output part, and the switching assembly is connected between the first transmission assembly and the second transmission assembly so as to control the motor assembly to alternatively drive the first output part or the second output part.

2. The double-ended power tool of claim 1, wherein: the motor assembly comprises a first motor shaft extending towards the first transmission assembly side and a second motor shaft extending towards the second transmission assembly side, the first transmission assembly comprises a first transmission part connected to the first output part and a first clutch piece movably connected with the first motor shaft and the first transmission part, the second transmission assembly comprises a second transmission part connected to the second output part and a second clutch piece movably connected with the second motor shaft and the second transmission part, and the switching assembly is connected between the first clutch piece and the second clutch piece.

3. The double-ended power tool of claim 2, wherein: the switching assembly comprises a switching button arranged on the main body part, a connecting plate connected between the first transmission assembly and the second transmission assembly, a first clutch piece connected with the switching button or connected with the first clutch piece and a first connecting piece of the connecting plate, a second connecting piece connected with the switching button and a second connecting piece of the connecting plate connected with the third connecting piece of the second clutch piece, and the switching button is moved to drive the connecting plate, the first connecting piece, the second connecting piece and the third connecting piece to move together so as to switch the positions of the first clutch piece and the second clutch piece.

4. The double-ended power tool of claim 3, wherein: the double-ended electric tool has a first operation mode for driving the first output portion to operate and a second operation mode for driving the second output portion to operate, in the first operation mode, the first transmission portion is connected to the first motor shaft via the first clutch, and the second transmission portion is disconnected from the second motor shaft; in the second operating mode, the second transmission part is connected to the second motor shaft via the second clutch, and the first transmission part is disengaged from the first motor shaft.

5. The double-ended power tool of claim 3, wherein: the first clutch piece comprises a first groove which is recessed inwards from the periphery in the radial direction, the second clutch piece comprises a second groove which is recessed inwards from the periphery in the radial direction, one end of the first connecting piece is connected to the connecting plate or the switching button, and the other end of the first connecting piece is clamped in the first groove; one end of the third connecting piece is connected to the connecting plate, and the other end of the third connecting piece is clamped in the second groove.

6. The double-ended power tool of claim 3, wherein: the double-end electric tool comprises a sliding groove extending from the inner wall of the main body part, and the switching button is contained in the sliding groove.

7. The double-ended power tool of claim 3, wherein: the switching assembly comprises a fourth connecting piece connected with the first transmission part and the switching button, and the fourth connecting piece is positioned between the first connecting piece and the second connecting piece.

8. The double-ended power tool of claim 3, wherein: first drive division includes the spliced pole of radially outwards protruding stretching from the periphery, the second connecting piece is located including the cover the annular portion of spliced pole, switch the button with the connecting plate is located motor element's relative both sides, annular portion is located switch the button with the approximate intermediate position of connecting plate.

9. The double-ended power tool of claim 3, wherein: the connecting plate includes a base plate extending in an axial direction of the motor assembly, and the double-ended electric power tool includes a receiving portion extending from an inner wall of the main body portion, the base plate being supported by the receiving portion.

10. The double-ended power tool of claim 9, wherein: the connecting plate includes the first end that is close to first transmission assembly, be close to second transmission assembly's second end and certainly first end towards the guide holder of first transmission assembly projecting, the guide holder face the terminal surface of first transmission assembly is equipped with the guide face, the shape of guide face with the outer peripheral face of first transmission assembly cooperatees.