Electric screw driver

Abstract

The utility model provides an electric screw driver, relates to the technical field of electric tools, and ensures that a user can accurately adjust required torsion by rotatably mounting an adjusting part on a shell and enabling the rotating angle of the adjusting part to correspond to a plurality of preset torsion values. And secondly, the rotating angle of the adjusting piece is accurately measured through the detection piece and converted into an electric signal, and the electric signal of the detection piece corresponds to the preset torsion value of the adjusting piece, so that an accurate basis is provided for torsion control of the screwdriver assembly. Then, the screwdriver assembly is electrically connected with the detection piece, so that the screwdriver assembly can timely and accurately receive the electric signal of the detection piece, and accurate torque output is achieved by controlling the torque of the screwdriver assembly, and it is ensured that the torque value is consistent with the preset torque value. Through the combined action of the adjusting piece, the detecting piece and the screwdriver assembly, the use precision and operation convenience of the electric screwdriver are improved, and the electric screwdriver can meet the daily screw fastening requirement and can also be applied to professional occasions needing high-precision torque control.

Description

Technical Field

[0001] The present application relates to the technical field of power tools, and more particularly, to an electric screwdriver. Background Art

[0002] An electric screwdriver, also known as an electric bit driver or an electric screwdriver, is a tool widely used in fields such as machining, electronic assembly, and home repair. Its main function is to tighten or loosen parts such as screws and nuts. The electric screwdriver is equipped with a mechanism for adjusting and limiting torque, and is mainly used in assembly lines. It consists of three major parts: electronics, motor, and machinery, and has advantages such as high precision and fast efficiency. It has become an important tool for improving work efficiency, ensuring product quality and safety in various fields. With the development of technology and the progress of industrial manufacturing, the requirements for torque control accuracy and efficiency in various fields are also getting higher and higher. Therefore, the functions and performance of electric screwdrivers also urgently need to be improved and enhanced.

[0003] However, most current electric screwdrivers adjust torque through buttons or push buttons. This method can only roughly adjust the torque magnitude and cannot achieve high-precision adjustment, thus limiting the application of electric screwdrivers under different working conditions. Utility Model Content

[0004] The purpose of the present application is to provide an electric screwdriver for the deficiencies in the above-mentioned prior art.

[0005] To achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:

[0006] The embodiments of the present application provide an electric screwdriver, including a housing, and an adjusting member, a detecting member, and a screwdriver assembly respectively disposed on the housing. The adjusting member is rotatably connected to the housing, and the rotation angle of the adjusting member corresponds to multiple preset torque values. The detecting member is used to detect the rotation angle of the adjusting member, and the screwdriver assembly is electrically connected to the detecting member and is used to output a torque value adapted to the preset torque value according to the preset torque value corresponding to the rotation angle.

[0007] Optionally, the electric screwdriver further includes a display member disposed on the housing. The display member is electrically connected to the detecting member and is used to display the corresponding preset torque value according to the rotation angle of the adjusting member.

[0008] Optionally, a PCB board is further disposed in the housing, and the detecting member and the display member are integrated on the PCB board.

[0009] Optionally, a locking button is further disposed on the housing, and the locking button is used to lock or unlock the adjusting member and the housing.

[0010] Optionally, the housing has a first opening, the display member is located at the first opening inside the housing, and an outer shell is covered on the periphery of the first opening. The outer shell has a light-transmitting area, and the light-transmitting area is located on the display side of the display member.

[0011] Optionally, the housing has a second opening opposite to the first opening. The screwdriver assembly includes a driving member and a screwdriver bit located inside the housing. The driving member is drivingly connected to the screwdriver bit, and the screwdriver bit extends out of the second opening.

[0012] Optionally, the adjusting member includes a knob and a gear provided with inner ring teeth. The inner ring teeth of the knob mesh with the gear, and the detecting member is used to detect the rotation angle of the gear.

[0013] Optionally, the knob is of an annular structure, and the gear, the detecting member and the display member are all located in the hollow part of the annular structure.

[0014] Optionally, the detecting member is an encoder or a light sensor.

[0015] Optionally, the display member is a digital display screen.

[0016] The beneficial effects of the present application include:

[0017] The present application provides an electric screwdriver, which includes a housing, and an adjusting member, a detecting member and a screwdriver assembly respectively arranged on the housing. The adjusting member is rotationally connected to the housing, and the rotation angle of the adjusting member corresponds to a plurality of preset torque values. The detecting member is used to detect the rotation angle of the adjusting member, and the screwdriver assembly is electrically connected to the detecting member and is used to output a torque value adapted to the preset torque value according to the preset torque value corresponding to the rotation angle. In the present application, the adjusting member is rotatably mounted on the housing, and the rotation angle of the adjusting member can correspond to a plurality of preset torque values, ensuring that the user can accurately adjust the required torque. Secondly, the rotation angle of the adjusting member is accurately measured by the detecting member and converted into an electrical signal. The electrical signal of the detecting member corresponds to the preset torque value of the adjusting member, providing an accurate basis for the torque control of the screwdriver assembly. Then, the screwdriver assembly is electrically connected to the detecting member, so that the screwdriver assembly can receive the electrical signal of the detecting member in a timely and accurate manner, and by controlling its own torque, realize accurate torque output and ensure consistency with the preset torque value.

[0018] Generally speaking, the multi-angle design of the adjusting member provides rich torque selections, the high-precision measurement of the detecting member ensures the accuracy of the signal, and the intelligent control of the screwdriver assembly realizes accurate torque output. The three work together to significantly improve the use accuracy and operation convenience of the electric screwdriver, enabling the electric screwdriver to not only meet the daily screw tightening requirements, but also be applied to professional occasions that require high-precision torque control. Description of the Drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of an electric screwdriver provided by an embodiment of the present application.

[0021] Icon: 1 - housing; 21 - knob; 22 - gear; 3 - detection component; 4 - display component; 5 - locking button; 6 - outer shell. Specific embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Usually, the components of the embodiments of the present application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. It should be noted that, without conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the protection scope of the present application.

[0024] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0026] In addition, terms such as "horizontal" and "vertical" do not require the components to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0028] An embodiment of the present application provides an electric screwdriver, as Figure 1 shown, which includes a housing 1, an adjusting member, a detecting member 3 and a screwdriver assembly respectively arranged on the housing 1. The adjusting member is rotatably connected to the housing 1, and the rotation angle of the adjusting member corresponds to a plurality of preset torque values. The detecting member 3 is used to detect the rotation angle of the adjusting member. The screwdriver assembly is electrically connected to the detecting member 3 and is used to output a torque value adapted to the preset torque value according to the preset torque value corresponding to the rotation angle.

[0029] Specifically, the housing 1 of the electric screwdriver serves as its main structure, accommodating and protecting all internal components, and at the same time providing a strong and easy-to-grip external shape. First, by rotatably installing the adjusting member on the housing 1 and making the rotation angle of the adjusting member correspond to a plurality of preset torque values, it is ensured that the user can accurately adjust the required torque. Secondly, the detecting member 3 accurately measures the rotation angle of the adjusting member and converts it into an electrical signal. The electrical signal of the detecting member 3 corresponds to the preset torque value of the adjusting member, providing an accurate basis for the torque control of the screwdriver assembly. Then, the screwdriver assembly is electrically connected to the detecting member 3, so that the screwdriver assembly can receive the electrical signal of the detecting member 3 in a timely and accurate manner, and by controlling its own torque, achieve accurate torque output to ensure consistency with the preset torque value.

[0030] Generally speaking, the multi-angle design of the adjusting member provides a rich selection of torques. The high-precision measurement of the detecting member 3 ensures the accuracy of the signal. The intelligent control of the screwdriver assembly realizes accurate torque output. The three work together to significantly improve the use accuracy and operation convenience of the electric screwdriver, so that the electric screwdriver can not only meet the daily screw tightening needs, but also be applied to professional occasions that require high-precision torque control.

[0031] It should be noted that a control system should be provided in the electric screwdriver. The control system is the core component to ensure accurate and reliable torque output. The control system receives the electrical signal from the detection component 3, and monitors and analyzes the rotation angle of the knob 21 in real time, that is, the preset torque value of the user. Then, according to the preset algorithm and parameters, it adjusts the working state of the screwdriver assembly and precisely controls the torque output of the screwdriver assembly to reach the preset torque value of the user.

[0032] Optionally, the adjusting component includes a knob 21 provided with inner ring teeth and a gear 22. The inner ring teeth of the knob 21 are engaged with the gear 22, and the detection component 3 is used to detect the rotation angle of the gear 22.

[0033] Specifically, as Figure 1 shown, the adjusting component is an important part of the electric screwdriver and is usually composed of a knob 21 and a gear 22. The knob 21 has a gear 22 tooth ring inside, and the gear 22 is connected to the detection component 3 to jointly realize torque adjustment and detection. First, the knob 21 is provided with inner ring teeth inside, and the inner ring teeth will be engaged with the gear 22. By rotating the knob 21, the movement of the gear 22 is driven, causing the gear 22 to rotate accordingly. Second, the gear 22 is the transmission medium between the knob 21 and the detection component 3, and is responsible for transmitting the rotational movement of the knob 21 to the detection component 3. The detection component 3 monitors the rotation of the knob 21 by detecting the rotation angle of the gear 22. Through the design of the knob 21 and the gear 22, the electric screwdriver realizes the functions of torque adjustment and detection. The knob 21 provides the control interface for the operator, and the gear 22, as the transmission mechanism, transmits the rotational movement of the knob 21 to the detection component 3, thereby realizing precise torque adjustment and monitoring. It should be understood that in addition to the gear 22 transmission, the transmission between the knob 21 and the detection component 3 can also be realized by many other structural forms such as worm drive and chain drive. The present application does not limit the transmission form between the adjusting component and the detection component 3.

[0034] Optionally, the detection component 3 is an encoder or a light sensor.

[0035] Specifically, the encoder is a commonly used detector 3 that can accurately measure and record the rotation angle of the adjusting member. Through the internal sensor, the encoder can monitor the rotational movement of the adjusting member in real time and convert the rotation angle into an electrical signal. These electrical signals are transmitted to the control system for torque control and feedback. Another common detector 3 is the light sensor, which can also monitor the rotation angle of the adjusting member. The light sensor uses the photoelectric effect to detect the position and movement of an object. When the adjusting member rotates, the light sensor can sense the change in light and convert these changes into electrical signals, which are transmitted to the control system to achieve torque control and feedback. Both of these detectors 3 have high precision and stability, can accurately monitor the rotation angle of the adjusting member, and transmit this information to the control system, thereby achieving precise torque control of the electric screwdriver.

[0036] Optionally, the electric screwdriver further includes a display member 4 disposed on the housing 1. The display member 4 is electrically connected to the detector 3 and is used to display the corresponding preset torque value according to the rotation angle of the adjusting member.

[0037] Specifically, as Figure 1 shown, by establishing an electrical connection between the display member 4 and the detector 3, the display member 4 can display the preset torque value in real time according to the detected rotation angle of the adjusting member. The detector 3 is responsible for monitoring the rotation angle of the adjusting member and transmitting this information to the display member 4. This close connection relationship ensures that the display member 4 can accurately reflect the torque value set by the user, provides real-time feedback for the work, enables the user to conveniently understand the current torque setting, and thus more precisely control the work process.

[0038] Optionally, the display member 4 is a digital display screen.

[0039] Specifically, using a digital display screen as the display member 4 makes the torque information of the electric screwdriver more intuitive and clear. The user can directly read the current preset torque value through the digital display screen, which provides accurate feedback information for the user. There is no need for complex conversion or calculation, improving the convenience and accuracy of operation, and enabling the user to more easily control the work process.

[0040] It should be noted that the designs of the adjusting member and the digital display screen both have high flexibility and precision. The design of the adjusting member allows the user to adjust any angle as needed to set the required torque value. The digital display screen can display any preset torque value with high precision, providing accurate feedback information for the user. Thus, the user can more precisely control and monitor the torque output during the work process. Whether in precision assembly, repair, or other scenarios that require precise torque control, the electric screwdriver can provide reliable performance and an accurate operation experience.

[0041] Optionally, a PCB board is also provided inside the housing 1, and the detection component 3 and the display component 4 are integrated on the PCB board.

[0042] Specifically, a PCB board is also provided inside the housing 1. The PCB board can integrate and manage the control system, the detection component 3, the display component 4, etc., so as to effectively control and monitor the various functions of the electric screwdriver. The control system, the detection component 3, and the display component 4 are key components in the electric screwdriver. Integrating the control system, the detection component 3, and the display component 4 on the same PCB board makes the communication between them more efficient and stable, reduces interference and errors, and ensures the normal operation of the electric screwdriver. The control system is responsible for receiving signals from the detection component 3 and precisely controlling the torque output of the screwdriver assembly according to these signals. At the same time, the display component 4 obtains the torque value through the control system and displays it in real time on the digital display screen, providing intuitive feedback to the user. This integrated design not only saves space, makes the whole system more compact and easy to install, but also improves the stability and reliability of the system.

[0043] Optionally, the knob 21 is of an annular structure, and the gear 22, the detection component 3, and the display component 4 are all located in the hollow part of the annular structure, making full use of the space without affecting the realization of each function.

[0044] Specifically, first, by placing the PCB board in the hollow part of the annular structure, the space resources are effectively utilized. The PCB board, as the core component of circuit control, integrates various electronic components and connection lines required by the control system. Placing it in the hollow part can avoid occupying extra space, making the structure of the whole electric screwdriver more compact and effective. Secondly, integrating the detection component 3 and the display component 4 on the PCB board further saves space. Most importantly, this design not only reasonably utilizes the space, but also does not affect the realization and operation of each functional module. Each component such as the knob 21, the gear 22, the detection component 3, and the display component 4 can work together in a compact space to achieve precise torque control and feedback of the electric screwdriver.

[0045] Optionally, the housing 1 has a first opening, the display component 4 is located at the first opening inside the housing 1, and a housing 6 is covered on the periphery of the first opening. The housing 6 has a light-transmitting area, and the light-transmitting area is located on the display side of the display component 4.

[0046] Specifically, the housing 1 has a first opening, and the display member 4 is disposed at the first opening inside the housing 1. A housing 6 is provided around the periphery of the first opening, so that the display member 4 and other components are effectively protected from the external environment. In addition, the housing 6 has a light-transmitting area, and the light-transmitting area is located on the display side of the display member 4, ensuring clear display of the torque information. Specifically, the light-transmitting area should be aligned with the display area of the display member 4, and the size of the light-transmitting area should match the display area of the display member 4, ensuring sufficient light passes through the housing 6 for the user to clearly read the display information.

[0047] Optionally, the housing 1 has a second opening opposite to the first opening. The screwdriver assembly includes a driving member and a screwdriver bit located inside the housing 1. The driving member is drivingly connected to the screwdriver bit, and the screwdriver bit extends out of the second opening.

[0048] Specifically, the screwdriver assembly includes a driving member and a screwdriver bit. The driving member can be a motor or other components with driving functions. The control system adjusts the speed and torque of the motor according to the information of the detection member 3. The change in the motor speed directly affects the torque output, achieving precise torque control. The driving member is connected to the screwdriver bit through a driving connection, which can convert electrical energy into mechanical energy to drive the screwdriver bit to rotate. A second opening is provided on one side of the housing 1 relative to the first opening, leaving sufficient working space for the screwdriver bit. This allows the screwdriver bit to extend out freely for work operations as needed. The screwdriver bit is usually designed in the form of a drill chuck or a screwdriver chuck to meet different working requirements. And, through the driving connection with the driving member and under the intelligent control of the driving member, the screwdriver bit can work at a controllable speed and force, ensuring the stability and reliability of the working process. At the same time, the special designs such as drill chucks or screwdriver chucks ensure that the screwdriver bit can firmly hold the work piece to complete precise tightening or loosening operations.

[0049] Optionally, a locking button 5 is further provided on the housing 1, and the locking button 5 is used to lock or unlock the adjusting member with the housing 1.

[0050] Specifically, as Figure 1As shown, the housing 1 usually further has a locking button 5, and the function of this locking button 5 is to lock or unlock the adjusting member and the housing 1. The presence of the locking button 5 increases the operation convenience and safety of the electric screwdriver. By pressing the locking button 5, the position of the adjusting member and the housing 1 can be fixed, preventing the adjusting member from being accidentally actuated or displaced during use. In this way, the user can operate more reassuringly, improving the safety of use. When the torque needs to be adjusted, the user can unlock the locking button 5, so that the adjusting member and the housing 1 are unlocked, and thus the adjusting member can be freely rotated to adjust the required torque value. After the adjustment is completed, pressing the locking button 5 again can re-lock the adjusting member and the housing 1 and fix them in the set position, avoiding the accidental adjustment or change of the torque value.

[0051] It should be noted that the locking button 5 can be arranged at the first opening, which is usually the place most easily accessible to the user when operating the electric screwdriver. Moreover, the locking button 5 can protrude from the outer shell 6, making it more conspicuous and easy to notice. The user does not need to search hard for the position of the button and can quickly lock or unlock it when needed, thus improving the operation efficiency and comfort. In addition, the position of the locking button 5 should be precisely planned outside the light-transmitting area to ensure a certain distance from the light-transmitting area to avoid affecting the normal display of the display member 4.

[0052] The design of the locking button 5 makes the operation of the electric screwdriver more flexible, safe and convenient. The setting of the locking button 5 not only enhances the stability and accuracy of the electric screwdriver, but also effectively prevents accidental operation and accidental damage, improving the reliability and service life of the electric screwdriver.

[0053] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric screwdriver, characterized in that: The invention comprises a housing (1), and an adjusting member, a detecting member (3) and a screwdriver assembly respectively arranged on the housing (1); the adjusting member is rotatably connected to the housing (1), and the rotation angle of the adjusting member corresponds to a plurality of preset torque values; the detecting member (3) is used to detect the rotation angle of the adjusting member; the screwdriver assembly is electrically connected to the detecting member (3) and is used to output a torque value that matches the preset torque value according to the preset torque value corresponding to the rotation angle.

2. The electric screwdriver according to claim 1, characterized in that: The electric screwdriver further comprises a display element (4) arranged on the housing (1); the display element (4) is electrically connected to the detection element (3) and is used to display the corresponding preset torque value according to the rotation angle of the adjustment element.

3. The electric screwdriver according to claim 2, characterized in that: A PCB board is also provided in the housing (1), and the detection component (3) and the display component (4) are integrated on the PCB board.

4. The electric screwdriver according to any one of claims 1 to 3, characterized in that: The housing (1) is also provided with a locking button (5), and the locking button (5) is used to lock or unlock the adjusting member and the housing (1).

5. The electric screwdriver according to claim 2 or 3, characterized in that: The shell (1) has a first opening, the display element (4) is located at the first opening in the shell (1), a shell (6) is provided around the first opening, the shell (6) has a light-transmitting area, and the light-transmitting area is located on the display side of the display element (4).

6. The electric screwdriver according to claim 5, characterized in that: The housing (1) has a second opening opposite to the first opening, and the screwdriver assembly comprises a driving member and a screwdriver head located in the housing (1), the driving member being drivingly connected to the screwdriver head, and the screwdriver head extending out of the second opening.

7. The electric screwdriver according to claim 2 or 3, characterized in that: The adjusting member comprises a knob (21) provided with inner ring teeth and a gear (22), the inner ring teeth of the knob (21) meshing with the gear (22), and the detecting member (3) is used to detect the rotation angle of the gear (22).

8. The electric screwdriver according to claim 7, characterized in that: The knob (21) is an annular structure, and the gear (22), the detection element (3) and the display element (4) are all located in the hollow part of the annular structure.

9. The electric screwdriver according to any one of claims 1 to 3, characterized in that: The detection element (3) is an encoder or a light sensor.

10. The electric screwdriver according to claim 2 or 3, characterized in that: The display element (4) is a digital display screen.

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