Multifunctional electric screwdriver

Abstract

The utility model provides a multifunctional electric screwdriver which comprises a handle, a screwdriver rod socket is arranged at the working end of the handle, a circuit assembly is arranged in the handle, the multifunctional electric screwdriver further comprises a functional part, the functional part is detachably connected to the working end of the handle, and the functional part is provided with a conductive piece which can be electrically connected with the circuit assembly. When the multifunctional electric screwdriver is used, the screwdriver rod is arranged on the screwdriver rod socket, so that the basic function of loosening and tightening a screw and a bolt can be realized; when the screwdriver rod is taken down and the functional part is installed at the working end of the handle, the functional part obtains electric energy through an original circuit assembly in the handle, and other functions except the basic functions are achieved. Therefore, multiple functions are integrated, different requirements can be met through configuration of fewer tools, and the purchase cost and the storage space are saved.

Description

Technical Field

[0001] The utility model relates to an electric tool, in particular to a multifunctional electric screwdriver. Background Art

[0002] An electric screwdriver is a tool that is driven by electricity and outputs torque to turn screws and bolts. Some ordinary households are also equipped with such tools. The existing electric screwdrivers have relatively single functions. When users have other needs besides loosening and tightening screws and bolts, electric screwdrivers are useless, so users have to equip other tools with matching functions. However, for home users, the utilization rate of these tools is not high, which causes a variety of tools to be idle for a long time, and a certain amount of space is required for storage. Therefore, it is necessary to integrate the functions of electric screwdrivers to better suit home users. The utility model patent with publication number CN219094976U discloses an electric screwdriver, which allows the operator to stabilize the electric screwdriver with less force when operating with one hand, facilitates screwing in, and improves assembly efficiency and assembly quality. However, the utility model does not solve the problem of the single function of the electric screwdriver. Utility Model Content

[0003] The existing electric screwdrivers have relatively single functions and cannot meet different needs. To overcome this defect, the utility model provides a multifunctional electric screwdriver, which expands the functions of the screwdriver and simplifies the types of tool configurations.

[0004] The technical solution of the utility model is: a multifunctional electric screwdriver, including a handle, a screwdriver rod socket is provided at the working end of the handle, a circuit assembly is provided in the handle, and the multifunctional electric screwdriver also includes a functional part, which is detachably connected to the working end of the handle, and the functional part has a conductive part that can be electrically connected to the circuit assembly. When using the multifunctional electric screwdriver, the screwdriver rod is installed on the screwdriver rod socket to perform the basic function of loosening and tightening screws and bolts of the utility model; when the screwdriver rod is removed and the functional part is installed on the working end of the handle, the functional part obtains electric energy through the original circuit assembly in the handle to perform other functions besides the basic function. Therefore, the utility model realizes multifunctional integration, can meet different needs with fewer tool configurations, and saves procurement costs and storage space.

[0005] Preferably, the functional part includes a functional part housing and a working component electric soldering iron component, the working component is installed in the functional part housing, and the end of the functional part housing is connected to a cylindrical sleeve portion that is nested with the working end of the handle. The working component can give the multifunctional electric screwdriver other functions, and the functional part housing not only provides installation support for the working component, but also facilitates connection with the handle. Through the nesting of the cylindrical sleeve portion and the working end of the handle, the functional part and the handle can be detachably connected.

[0006] Preferably, the working component is an electric soldering iron component, including a soldering iron head and a soldering iron core, the soldering iron core is sleeved outside the soldering iron head, and the soldering iron core is connected to the conductive member through a wire. The electric soldering iron component gives the multifunctional electric screwdriver the function of an electric soldering iron, and the soldering iron core obtains electrical energy from the conductive member through the wire, which is then converted into heat energy and output through the soldering iron head.

[0007] Preferably, a circumferential positioning structure is provided between the cylindrical sleeve portion and the working end of the handle. The circumferential positioning structure can improve the connection reliability between the functional part and the handle, prevent the functional part from rotating, and thus ensure that the functional part is stably connected to the handle.

[0008] Preferably, the circumferential positioning structure comprises an axial convex strip provided on the circumferential surface of the working end of the handle and a clamping groove provided on the inner wall of the cylindrical sleeve portion, and the axial convex strip and the clamping groove are matched accordingly. After the axial convex strip is embedded in the clamping groove, the functional portion and the handle can be circumferentially positioned.

[0009] Alternatively, the circumferential positioning structure includes a groove provided on the circumferential surface of the working end of the handle and an axial convex strip provided on the inner wall of the cylindrical sleeve portion, and the axial convex strip corresponds to the groove. The axial convex strip is located on the inner wall of the cylindrical sleeve portion, and the groove is located on the circumferential surface of the working end of the handle, and a circumferential positioning structure can also be formed to realize the circumferential positioning between the functional part and the handle.

[0010] Preferably, a working end of the handle is also provided with a working lighting mechanism, which includes a light-emitting body and a light-transmitting member. The light-emitting body is fixed in the handle and electrically connected to the circuit assembly, and the light-transmitting member is located in front of the light-emitting body. The light-emitting body emits light after being energized, and the light-transmitting member can converge the light emitted by the light-emitting body and illuminate the front of the multifunctional electric screwdriver. The working lighting mechanism is mainly used to provide short-distance and small-range lighting in the case of poor lighting in the working environment, so as to improve the lighting conditions around the object of the multifunctional electric screwdriver.

[0011] Preferably, the working component is a lighting component. The working component can also be a lighting component, which gives the multifunctional electric screwdriver the function of a flashlight and provides a larger range of lighting.

[0012] Preferably, a main switch is provided on the handle, and a functional switch is provided on the functional part. The main switch is used to control the power on and off of the screwdriver rod socket to achieve torque output control of the screwdriver rod of the multifunctional electric screwdriver. The functional switch is used to control the power on and off of the functional part to achieve other functions of the multifunctional electric screwdriver.

[0013] Preferably, the handle is also provided with a battery, and the circuit assembly is electrically connected to the battery. The multifunctional electric screwdriver is powered by a battery, is not restricted by the length of the cable and the distance of the power socket, and is more convenient and flexible to use.

[0014] The beneficial effects of the utility model are:

[0015] More functions and streamlined tool configuration. The utility model realizes multi-functional integration, and can convert functions as needed, meet more different needs with fewer tool configurations, save procurement costs and storage space, improve product utilization, and maximize product value, which is especially suitable for home users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the functional part in the utility model;

[0018] Figure 3 This is a schematic diagram of the split structure of the functional parts in the utility model;

[0019] Figure 4 A schematic diagram of the split structure of the handle in the utility model;

[0020] Figure 5 The utility model is a schematic diagram of the structure after being converted into an electric soldering iron.

[0021] In the figure: 1-handle, 101-bar socket, 102-axial convex strip, 103-work lighting mechanism, 1031-illuminant module, 1032-light-transmitting sheet, 1033-conductive column perforation, 104-main switch, 105-head cover, 106-handle shell, 107-tail cover, 2-functional part, 201-functional part shell, 2011-card slot, 202-cylindrical socket part, 203-electric soldering iron assembly, 2031-soldering iron head, 2032-soldering iron core, 2033-conductive column, 204-functional part switch, 3-bar. DETAILED DESCRIPTION

[0022] The present invention will be further described below through specific implementation modes in conjunction with the accompanying drawings.

[0023] Embodiment 1:

[0024] like Figures 1 to 5As shown, a multifunctional electric screwdriver includes a handle 1, a functional part 2 and detachable screwdriver rods 3 of various specifications. The handle 1 is made of plastic injection molding, and a screwdriver rod socket 101 is provided at the working end of the handle 1. A micro motor, a circuit assembly and a battery are provided inside the handle 1. The circuit assembly is presented in the form of a circuit board. The circuit assembly is electrically connected to the battery, and the micro motor is electrically connected to the circuit assembly. The screwdriver rod socket 101 is formed by extending the output shaft of the micro motor. The functional part 2 is installed at the working end of the handle 1 and is detachable. The functional part 2 includes a functional part shell 201, a cylindrical sleeve part 202 and a working component. The functional part shell 201 and the cylindrical sleeve part 202 are also injection molded parts, and the working component is installed in the functional part shell 201; the cylindrical sleeve part 202 is located at the rear end of the functional part shell 201, that is, the end of the functional part shell 201 close to the working end of the handle 1, and the front end of the cylindrical sleeve part 202, that is, the end port facing the functional part shell 201 is integrally provided with a radially inward-facing inner convex ring, so that the front end port of the cylindrical sleeve part 202 is semi-closed due to the reduction of the inner diameter, and the rear end port of the functional part shell 201 also has a similar inner convex ring. The inner convex rings of the functional part shell 201 and the cylindrical sleeve part 202 are overlapped and connected by screws, so that the front end of the cylindrical sleeve part 202 is connected to the rear end of the functional part shell 201. The rear end of the cylindrical sleeve part 202 is sleeved on the working end of the handle 1. The inner diameter of the cylindrical sleeve part 202 is slightly smaller than the outer diameter of the working end of the handle 1. However, since the handle 1 and the functional part housing 201 are both plastic parts with elastic deformation ability, the cylindrical sleeve part 202 and the handle 1 can still be nested and matched, and a moderate interference fit can be formed. Through the nesting of the cylindrical sleeve part 202 and the working end of the handle 1, the detachable connection of the functional part 2 and the handle 1 can be achieved. Three axial convex strips 102 are provided on the circumferential surface of the working end of the handle 1, and three grooves 2011 are provided on the inner wall of the cylindrical sleeve part 202. The axial convex strips 102 and the grooves 2011 are slidably plugged in a one-to-one correspondence. The axial convex strips 102 and the grooves 2011 are also interference fit. The axial convex strips 102 and the grooves 2011 constitute a circumferential positioning structure between the cylindrical sleeve part 202 and the working end of the handle 1. The handle 1 is provided with a main switch 104 , which has two buttons for respectively controlling the forward and reverse rotation of the rod socket 101 , and the functional part 2 is provided with a functional part switch 204 .

[0025] The working component is an electric soldering iron component 203, including a soldering iron tip 2031 and a soldering iron core 2032. The soldering iron core 2032 has a central lumen. The soldering iron tip 2031 is connected to the central lumen of the soldering iron core 2032 and can be heated by the soldering iron core 2032 after power is supplied. The soldering iron core 2032 is connected to two wires, and the two wires are respectively connected to two electrical contact points. The functional part 2 is provided with a conductive member for contacting and conducting electricity with the circuit component. The conductive member is a pair of conductive posts 2033, which are fixed to the inner convex ring at the rear end of the functional part housing 201 and are electrically connected to the soldering iron core 2032 through the wires. The working end of the handle 1 is also provided with a working lighting mechanism 103, which includes a light-emitting module 1031 and a light-transmitting sheet 1032. The light-emitting module 1031 is fixed in the handle 1 and is electrically connected to the circuit assembly. The light-transmitting sheet 1032 is located in front of the light-emitting module 1031. The light-transmitting sheet 1032 and the light-emitting module 1031 are provided with conductive column through-holes 1033. Both the light-emitting module 1031 and the light-transmitting sheet 1032 have a central hole, which allows the rod socket 101 to pass through. The handle 1 includes a head cover 105, a handle shell 106 and a tail cover 107. The head cover 105 is cylindrical, one end of the head cover 105 is open and the inner wall is provided with a thread, the other end of the head cover 105 has an inner buckle edge, the head cover 105 is connected to the front end of the handle shell 106 by a thread, and the tail cover 107 is clamped at the rear end of the handle shell 106. The working lighting mechanism 103 is located between the head cover 105 and the front end of the handle shell 106, and is axially positioned by the inner buckle edge of the head cover 105 and the front end of the handle shell 106.

[0026] The multifunctional electric screwdriver has the functions of a screwdriver and an electric soldering iron. When used as a screwdriver, the screw rod 3 of the required specifications is directly installed on the screw rod socket 101, and the basic function of tightening and loosening screws and bolts of the utility model can be performed; when used as a screwdriver, the screw rod 3 is removed, and the axial protrusion 102 is aligned with the card slot 2011 and then pressed down with force, so that the functional part 2 is installed on the working end of the handle 1. At this time, the conductive column 2033 passes through the conductive column through hole 1033 and contacts the conductive contact in the handle 1. By pressing the functional part switch 204, the functional part 2 can obtain electrical energy through the circuit component in the handle 1, and then heat the soldering iron tip 2031.

[0027] Embodiment 2:

[0028] like Figure 1 , Figure 4 , Figure 5As shown, a multifunctional electric screwdriver includes a handle 1, a functional part 2 and detachable screwdriver rods 3 of various specifications. The handle 1 is made of plastic injection molding, and a screwdriver rod socket 101 is provided at the working end of the handle 1. A micro motor, a circuit assembly and a battery are provided inside the handle 1. The circuit assembly is presented in the form of a circuit board. The circuit assembly is electrically connected to the battery, and the micro motor is electrically connected to the circuit assembly. The screwdriver rod socket 101 is formed by extending the output shaft of the micro motor. The functional part 2 is installed at the working end of the handle 1 and is detachable. The functional part 2 includes a functional part shell 201, a cylindrical sleeve part 202 and a working component. The functional part shell 201 and the cylindrical sleeve part 202 are also injection molded parts, and the working component is installed in the functional part shell 201; the cylindrical sleeve part 202 is located at the rear end of the functional part shell 201, that is, the end of the functional part shell 201 close to the working end of the handle 1, and the front end of the cylindrical sleeve part 202, that is, the end port facing the functional part shell 201 is integrally provided with a radially inward-facing inner convex ring, so that the front end port of the cylindrical sleeve part 202 is semi-closed due to the reduction of the inner diameter, and the rear end port of the functional part shell 201 also has a similar inner convex ring. The inner convex rings of the functional part shell 201 and the cylindrical sleeve part 202 are overlapped and connected by screws, so that the front end of the cylindrical sleeve part 202 is connected to the rear end of the functional part shell 201. The rear end of the cylindrical sleeve part 202 is sleeved on the working end of the handle 1. The inner diameter of the cylindrical sleeve part 202 is slightly smaller than the outer diameter of the working end of the handle 1. However, since the handle 1 and the functional part housing 201 are both plastic parts with elastic deformation ability, the cylindrical sleeve part 202 and the handle 1 can still be nested and matched, and a moderate interference fit can be formed. Through the nesting of the cylindrical sleeve part 202 and the working end of the handle 1, the functional part 2 and the handle 1 can be detachably connected. Different from the embodiment 1, the circumferential positioning structure includes three grooves arranged on the circumferential surface of the working end of the handle (1) and three axial convex strips arranged on the inner wall of the cylindrical sleeve part (202). The axial convex strips and the grooves are slidably plugged in one by one, and the axial convex strips 102 and the grooves 2011 are also interference fit. The handle 1 is provided with a main switch 104, and the main switch 104 has two buttons, which respectively control the forward and reverse rotation of the rod socket 101. The functional part 2 is provided with a functional part switch 204.

[0029] The working component is an electric soldering iron component 203, including a soldering iron tip 2031 and a soldering iron core 2032. The soldering iron core 2032 has a central lumen. The soldering iron tip 2031 is connected to the central lumen of the soldering iron core 2032 and can be heated by the soldering iron core 2032 after power is supplied. The soldering iron core 2032 is connected to two wires, and the two wires are respectively connected to two electrical contact points. The functional part 2 is provided with a conductive member for contacting and conducting electricity with the circuit component. The conductive member is a pair of conductive posts 2033, which are fixed to the inner convex ring at the rear end of the functional part housing 201 and are electrically connected to the soldering iron core 2032 through the wires. The working end of the handle 1 is also provided with a working lighting mechanism 103, which includes a light-emitting module 1031 and a light-transmitting sheet 1032. The light-emitting module 1031 is fixed in the handle 1 and is electrically connected to the circuit assembly. The light-transmitting sheet 1032 is located in front of the light-emitting module 1031. The light-transmitting sheet 1032 and the light-emitting module are provided with conductive column through-holes 1033. Both the light-emitting module 1031 and the light-transmitting sheet 1032 have a central hole, which can allow the rod socket 101 to pass through. The handle 1 includes a head cover 105, a handle housing 106 and a tail cover 107. The head cover 105 is cylindrical, one end of the head cover 105 is open and the inner wall is provided with threads, the other end of the head cover 105 has an inner buckle edge, the head cover 105 is connected to the front end of the handle housing 106 through threads, the tail cover 107 is clamped at the rear end of the handle housing 106, the working lighting mechanism 103 is located between the head cover 105 and the front end of the handle housing 106, and is axially positioned by the inner buckle edge of the head cover 105 and the front end of the handle housing 106. The rest is the same as in Example 1.

[0030] The multifunctional electric screwdriver has the functions of a screwdriver and an electric soldering iron. When used as a screwdriver, the screw rod 3 of the required specifications is directly installed on the screw rod socket 101, and the basic function of tightening and loosening screws and bolts of the utility model can be performed; when used as a screwdriver, the screw rod 3 is removed, and the axial protrusion 102 is aligned with the card slot 2011 and then pressed down with force, so that the functional part 2 is installed on the working end of the handle 1. At this time, the conductive column 2033 passes through the conductive column through hole 1033 and contacts the conductive contact in the handle 1. By pressing the functional part switch 204, the functional part 2 can obtain electrical energy through the circuit component in the handle 1, and then heat the soldering iron tip 2031.

[0031] Embodiment 3:

[0032] A multifunctional electric screwdriver comprises a handle 1, a functional part 2 and detachable screwdriver rods 3 of various specifications. The handle 1 is made of plastic injection molding. A screwdriver rod socket 101 is provided at the working end of the handle 1. A micro motor, a circuit assembly and a battery are provided inside the handle 1. The circuit assembly is presented in the form of a circuit board. The circuit assembly is electrically connected to the battery, and the micro motor is electrically connected to the circuit assembly. The screwdriver rod socket 101 is formed by extending the output shaft of the micro motor. The functional part 2 is installed at the working end of the handle 1 and is detachable. The functional part 2 includes a functional part shell 201, a cylindrical sleeve part 202 and a working component. The functional part shell 201 and the cylindrical sleeve part 202 are also injection molded parts, and the working component is installed in the functional part shell 201; the cylindrical sleeve part 202 is located at the rear end of the functional part shell 201, that is, the end of the functional part shell 201 close to the working end of the handle 1, and the front end of the cylindrical sleeve part 202, that is, the end port facing the functional part shell 201 is integrally provided with a radially inward-facing inner convex ring, so that the front end port of the cylindrical sleeve part 202 is semi-closed due to the reduction of the inner diameter, and the rear end port of the functional part shell 201 also has a similar inner convex ring. The inner convex rings of the functional part shell 201 and the cylindrical sleeve part 202 are overlapped and connected by screws, so that the front end of the cylindrical sleeve part 202 is connected to the rear end of the functional part shell 201. The rear end of the cylindrical sleeve part 202 is sleeved on the working end of the handle 1. The inner diameter of the cylindrical sleeve part 202 is slightly smaller than the outer diameter of the working end of the handle 1. However, since the handle 1 and the functional part housing 201 are both plastic parts with elastic deformation ability, the cylindrical sleeve part 202 and the handle 1 can still be nested and matched, and a moderate interference fit can be formed. Through the nesting of the cylindrical sleeve part 202 and the working end of the handle 1, the detachable connection of the functional part 2 and the handle 1 can be achieved. Three axial convex strips 102 are provided on the circumferential surface of the working end of the handle 1, and three grooves 2011 are provided on the inner wall of the cylindrical sleeve part 202. The axial convex strips 102 and the grooves 2011 are slidably plugged in a one-to-one correspondence. The axial convex strips 102 and the grooves 2011 are also interference fit. The axial convex strips 102 and the grooves 2011 constitute a circumferential positioning structure between the cylindrical sleeve part 202 and the working end of the handle 1. The handle 1 is provided with a main switch 104 , which has two buttons for respectively controlling the forward and reverse rotation of the rod socket 101 , and the functional part 2 is provided with a functional part switch 204 .

[0033] Different from Example 1, the working component is a lighting component, including LED lamp beads, a lamp bead power supply module and a reflective bowl. The LED lamp beads and the reflective bowl are installed on the lamp bead power supply module, and the LED lamp beads are located at the center of the bottom of the reflective bowl. The lamp bead power supply module is fixed in the functional part housing 201. Two wires are connected to the lamp bead power supply module, and the two wires are respectively connected to two electrical contacts. A conductive member is provided on the functional part 2 for contacting and conducting electricity with the circuit component. The conductive member is a pair of conductive columns 2033, which are fixed on the inner convex ring at the rear end of the functional part housing 201 and are electrically connected to the lamp bead power supply module through the wires. The working end of the handle 1 is also provided with a working lighting mechanism 103, which includes a light-emitting module 1031 and a light-transmitting sheet 1032. The light-emitting module 1031 is fixed in the handle 1 and is electrically connected to the circuit assembly. The light-transmitting sheet 1032 is located in front of the light-emitting module 1031. The light-transmitting sheet 1032 and the light-emitting module are provided with conductive column through-holes 1033. Both the light-emitting module 1031 and the light-transmitting sheet 1032 have a central hole, which can allow the rod socket 101 to pass through. The handle 1 includes a head cover 105, a handle housing 106 and a tail cover 107. The head cover 105 is cylindrical, one end of the head cover 105 is open and the inner wall is provided with threads, the other end of the head cover 105 has an inner buckle edge, the head cover 105 is connected to the front end of the handle housing 106 through threads, the tail cover 107 is clamped at the rear end of the handle housing 106, the working lighting mechanism 103 is located between the head cover 105 and the front end of the handle housing 106, and is axially positioned by the inner buckle edge of the head cover 105 and the front end of the handle housing 106. The rest is the same as in Example 1.

[0034] The multifunctional electric screwdriver has the functions of a screwdriver and a flashlight. When used as a screwdriver, the screw rod 3 of the required specifications is directly installed on the screw rod socket 101, and the basic function of tightening and loosening screws and bolts of the utility model can be performed; when used as a screwdriver, the screw rod 3 is removed, and the axial protrusion 102 is aligned with the card slot 2011 and then pressed down with force, so that the functional part 2 is installed on the working end of the handle 1. At this time, the conductive column 2033 passes through the conductive column through hole 1033 and contacts the conductive contact in the handle 1. By pressing the functional part switch 204, the functional part 2 can obtain electrical energy through the circuit component in the handle 1, and then the LED lamp beads are lit to illuminate a larger range.

Claims

1. A multifunctional electric screwdriver, comprising a handle (1), a screwdriver rod socket (101) being provided at a working end of the handle (1), and a circuit component being provided inside the handle (1), wherein: It also comprises a functional part (2), which is detachably connected to the working end of the handle (1), and has a conductive part that can be electrically connected to the circuit component.

2. The multifunctional electric screwdriver according to claim 1, characterized in that: The functional part (2) comprises a functional part housing (201) and a working component, wherein the working component is installed in the functional part housing (201), and the end of the functional part housing (201) is connected to a cylindrical sleeve portion (202) which is nested with the working end of the handle (1).

3. The multifunctional electric screwdriver according to claim 2, characterized in that: The working component is an electric soldering iron component (203), comprising a soldering iron head (2031) and a soldering iron core (2032); the soldering iron core (2032) is sleeved outside the soldering iron head (2031), and the soldering iron core (2032) is connected to the conductive member via a wire.

4. The multifunctional electric screwdriver according to claim 2, characterized in that: A circumferential positioning structure is provided between the cylindrical sleeve portion (202) and the working end of the handle (1).

5. The multifunctional electric screwdriver according to claim 4, characterized in that: The circumferential positioning structure comprises an axial convex strip (102) provided on the circumferential surface of the working end of the handle (1) and a clamping groove (2011) provided on the inner wall of the cylindrical sleeve portion (202), and the axial convex strip (102) and the clamping groove (2011) are correspondingly matched.

6. The multifunctional electric screwdriver according to claim 4, characterized in that: The circumferential positioning structure comprises a clamping groove provided on the circumferential surface of the working end of the handle (1) and an axial convex strip provided on the inner wall of the cylindrical sleeve portion (202), the axial convex strip correspondingly matching with the clamping groove.

7. The multifunctional electric screwdriver according to claim 1, characterized in that: The working end of the handle (1) is also provided with a working lighting mechanism (103), the working lighting mechanism (103) comprising a light-emitting module (1031) and a light-transmitting sheet (1032), the light-emitting module (1031) being fixed in the handle (1) and electrically connected to the circuit assembly, and the light-transmitting sheet (1032) being located in front of the light-emitting module (1031).

8. The multifunctional electric screwdriver according to claim 2, characterized in that: The working component is a lighting component.

9. The multifunctional electric screwdriver according to claim 1, characterized in that: The handle (1) is provided with a main switch (104), and the functional part (2) is provided with a functional part switch (204).

10. The multifunctional electric screwdriver according to any one of claims 1 to 9, characterized in that: The handle (1) is also provided with a battery, and the circuit component is electrically connected to the battery.

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