Anti-twisting electric tool
The anti-twist electric tool uses an electronic gyroscope and control chip to quickly stop the motor upon detecting handle deflections, addressing the need for precise and fast anti-twist mechanisms to prevent tool and operator harm.
Patent Information
- Application Number
- CN202411419210.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2024-12-27
AI Technical Summary
Traditional power tools lack a fast and precise anti-twist mechanism, leading to potential operator injury and tool damage during unexpected twisting due to improper operation or encountering hard materials.
An anti-twist electric tool equipped with an electronic gyroscope and control chip that detects sudden handle deflections and angular acceleration, immediately stopping the motor to prevent twisting and overload.
Enhances safety by preventing operator injury and tool damage, extends tool life, and reduces maintenance costs through rapid response to abnormal conditions.
Smart Images
Figure CN119188666A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electric tools, and in particular to an anti-twist electric tool. Background Art
[0002] In the field of power tools, especially in operations such as drilling and tightening screws, power tools are widely used due to their high efficiency and convenience. However, traditional power tools have certain safety hazards during use, especially when they suddenly encounter large resistance or improper operation causes the tool to twist unexpectedly, which may cause harm to the operator and may also damage the workpiece or the tool itself.
[0003] Specifically, when a power tool encounters a hard material or suddenly gets stuck when drilling or tightening a screw, if the operator fails to notice and take measures in time, the power tool may be damaged due to overload or even twisted, causing hand injuries to the operator. In addition, in certain specific working environments, such as working at heights or in confined spaces, once an accidental twisting occurs, the consequences may be more serious.
[0004] In order to solve the above problems, some electric tools with anti-twist function have appeared on the market, but most of these tools use mechanical structures to achieve the anti-twist function, such as clutches. Although these mechanical structures can prevent overload and reversal to a certain extent, their response speed is slow and the adjustment is not precise enough. Therefore, it is necessary to develop a more intelligent, faster-responding and more precisely adjustable anti-twist electric tool.
[0005] Based on this, the applicant proposed an anti-twist electric tool to solve the above technical problems. Summary of the invention
[0006] The present invention aims at the deficiencies in the prior art and provides an anti-twist electric tool.
[0007] The present invention is solved by the following technical solutions: An anti-twist electric tool comprises a handle, wherein the upper end of the handle is connected to a main body, a motor is arranged in the main body, the output shaft of the motor is connected to a transmission via a reducer, the transmission is connected to a drill clamp arranged at the front end of the main body, a connecting seat is arranged at the lower end of the handle for connecting to a power source, a trigger is arranged on the handle, a control chip is arranged in the handle or on the lower side of the handle, the control chip is electrically connected to the motor, an electronic gyroscope is arranged on the control chip, when the trigger is pressed, the control chip controls the rotation of the motor, and when the electronic gyroscope detects a sudden change in the operation of the electric tool, the control chip controls the motor to stop.
[0008] Preferably, the sudden change in operation refers to a deflection of the handle within t, and the angular acceleration of the deflection is α.
[0009] Preferably, the sudden change in operation means that within t, the motor power abnormally increases by no less than λ, and at the same time the handle deflects, and the angular acceleration of the deflection is β.
[0010] Preferably, the range of t is 0 to 100 milliseconds.
[0011] Preferably, the α is -0.5g~0.5g.
[0012] Preferably, the λ is 15%.
[0013] Preferably, the β is -0.3g~0.3g.
[0014] Preferably, the abnormal increase in motor power refers to the motor power increasing by more than the maximum rated power under the current setting.
[0015] Preferably, a card slot is further provided at the rear end of the connecting seat, and a screwdriver bit is accommodated in the card slot.
[0016] Preferably, a speed regulating switch is also provided on the main body, and the speed regulating switch is electrically connected to the control chip, and the control chip controls the rotation speed of the motor through the speed regulating switch.
[0017] Preferably, the reducer includes a multi-stage planetary reducer, a parallel shaft gear reducer, or a worm gear reducer.
[0018] Preferably, a torque adjuster is movably provided on the main body.
[0019] Preferably, an anti-slip sheet is also provided on the outer side of the handle.
[0020] The beneficial effects of the present invention are: 1. Improved safety: When the power tool encounters unexpected resistance or sharp twisting due to improper operation during operation, the electronic gyroscope can quickly sense and transmit signals to the control chip, which immediately responds and stops the motor rotation, effectively avoiding the risk of operator hand injury and damage to workpieces and tools caused by overload, twisting, etc., greatly improving the safety of operation; 2. Improved durability: Due to its ability to respond promptly and prevent overload and torsion, this technical solution effectively reduces the wear and damage of power tools under abnormal working conditions, extends the service life of the tools, and reduces maintenance costs and replacement frequency; 3. Improve user experience: The combination of electronic gyroscope and control chip makes the operation of power tools more intelligent. The operator only needs simple operation to achieve precise adjustment of torque and automatic activation of anti-twist function, which greatly improves the convenience and comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.
[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.
[0023] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.
[0024] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention.
[0025] Figure 4 It is a half-section view of the three-dimensional structure of the present invention.
[0026] Figure 5 The principle of the present invention Figure 1 .
[0027] Figure 6 The principle of the present invention Figure 2 .
[0028] Figure 7 The principle of the present invention Figure 3 .
[0029] Figure 8 The principle of the present invention Figure 4 .
[0030] Fig. 9 The principle of the present invention Figure 5 .
[0031] Fig.10 The principle of the present invention Figure 6 .
[0032] Fig.11 The principle of the present invention Figure 7 .
[0033] Fig.12 The principle of the present invention Figure 8 .
[0034] Fig.13 The principle of the present invention Fig. 9 .
[0035] Fig.14 The principle of the present invention Fig.10 .
[0036] In the figure: 1. main body, 11. drill clamp, 2. handle, 3. connecting seat, 4. trigger, 5. screwdriver bit, 6. control chip, 7. electronic gyroscope, 8. motor, 9. transmission. DETAILED DESCRIPTION
[0037] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:
[0038] like Figures 1 to 14 As shown, an anti-twist electric tool of the present invention comprises a handle 2, the upper end of the handle 2 is connected to a main body 1, a motor 8 is arranged in the main body 1, the output shaft of the motor 8 is connected to a transmission device 9 through a reducer, the transmission device 9 is connected to a drill clamp 11 arranged at the front end of the main body 1, a connecting seat 3 is arranged at the lower end of the handle 2 for connecting to a power source, a trigger 4 is arranged on the handle 2, a control chip 6 is arranged in the handle 2 or on the lower side of the handle 2, the control chip 6 is electrically connected to the motor 8, and an electronic gyroscope 7 is arranged on the control chip 6 The combination of the electronic gyroscope and the control chip makes the operation of the power tool more intelligent. The operator only needs to perform simple operations to achieve precise adjustment of the torque and automatic activation of the anti-twist function, which greatly improves the convenience and comfort of use. When the trigger 4 is pressed, the control chip 6 controls the motor 8 to rotate. When the electronic gyroscope 7 detects a sudden change in the operation of the power tool, the sudden change in operation refers to a deflection of the handle within 5 milliseconds, and the angular acceleration of the deflection is -0.25g~0.25g, the control chip 6 controls the motor 8 to stop.
[0039] When the power tool encounters unexpected resistance or sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense and transmit signals to the control chip, which immediately responds and stops the motor rotation, effectively avoiding the risk of operator hand injury and damage to workpieces and tools caused by overload, twisting, etc., greatly improving the safety of operation; because it can respond in time and prevent overload and twisting, this technical solution effectively reduces the wear and damage of the power tool under abnormal working conditions, extends the service life of the tool, and reduces maintenance costs and replacement frequency.
[0040] The rear end of the connecting seat 3 is also provided with a card slot, in which a screwdriver bit 5 is carded and accommodated, and the screwdriver bit 5 includes a cross screwdriver bit or a flat screwdriver bit.
[0041] The outer side of the handle 2 is also provided with an anti-slip sheet to facilitate the user to hold it stably. Embodiment 2:
[0042] like Figures 1 to 14 As shown, an anti-twist electric tool of the present invention comprises a handle 2, the upper end of the handle 2 is connected to a main body 1, a motor 8 is arranged in the main body 1, the output shaft of the motor 8 is connected to a transmission device 9 through a reducer, the transmission device 9 is connected to a drill clamp 11 arranged at the front end of the main body 1, a connecting seat 3 is arranged at the lower end of the handle 2 for connecting to a power source, a trigger 4 is arranged on the handle 2, a control chip 6 is arranged in the handle 2 or on the lower side of the handle 2, the control chip 6 is electrically connected to the motor 8, and an electronic gyroscope 7 is arranged on the control chip 6, The combination of the electronic gyroscope and the control chip makes the operation of the power tool more intelligent. The operator only needs to perform simple operations to achieve precise adjustment of the torque and automatic activation of the anti-twist function, which greatly improves the convenience and comfort of use. When the trigger 4 is pressed, the control chip 6 controls the motor 8 to rotate. When the electronic gyroscope 7 detects a sudden change in the operation of the power tool, the sudden change in operation refers to a deflection of the handle within 10 milliseconds, and the angular acceleration of the deflection is -0.35g~0.35g, the control chip 6 controls the motor 8 to stop.
[0043] When the power tool encounters unexpected resistance or sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense and transmit signals to the control chip, which immediately responds and stops the motor rotation, effectively avoiding the risk of operator hand injury and damage to workpieces and tools caused by overload, twisting, etc., greatly improving the safety of operation; because it can respond in time and prevent overload and twisting, this technical solution effectively reduces the wear and damage of the power tool under abnormal working conditions, extends the service life of the tool, and reduces maintenance costs and replacement frequency.
[0044] The rear end of the connecting seat 3 is also provided with a card slot, in which a screwdriver bit 5 is carded and accommodated, and the screwdriver bit 5 includes a cross screwdriver bit or a flat screwdriver bit.
[0045] The outer side of the handle 2 is also provided with an anti-slip sheet to facilitate the user to hold it stably. Embodiment 3:
[0046] like Figures 1 to 14As shown, an anti-twist electric tool of the present invention comprises a handle 2, the upper end of the handle 2 is connected to a main body 1, a motor 8 is arranged in the main body 1, the output shaft of the motor 8 is connected to a transmission device 9 through a reducer, the transmission device 9 is connected to a drill clamp 11 arranged at the front end of the main body 1, a connecting seat 3 is arranged at the lower end of the handle 2 for connecting to a power source, a trigger 4 is arranged on the handle 2, a control chip 6 is arranged in the handle 2 or on the lower side of the handle 2, the control chip 6 is electrically connected to the motor 8, and an electronic gyroscope 7 is arranged on the control chip 6 The combination of the electronic gyroscope and the control chip makes the operation of the power tool more intelligent. The operator only needs to perform simple operations to achieve precise adjustment of the torque and automatic activation of the anti-twist function, which greatly improves the convenience and comfort of use. When the trigger 4 is pressed, the control chip 6 controls the motor 8 to rotate. When the electronic gyroscope 7 detects a sudden change in the operation of the power tool, the sudden change in operation refers to a deflection of the handle within 15 milliseconds, and the angular acceleration of the deflection is -0.4g~0.4g, the control chip 6 controls the motor 8 to stop.
[0047] When the power tool encounters unexpected resistance or sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense and transmit signals to the control chip, which immediately responds and stops the motor rotation, effectively avoiding the risk of operator hand injury and damage to workpieces and tools caused by overload, twisting, etc., greatly improving the safety of operation; because it can respond in time and prevent overload and twisting, this technical solution effectively reduces the wear and damage of the power tool under abnormal working conditions, extends the service life of the tool, and reduces maintenance costs and replacement frequency.
[0048] The rear end of the connecting seat 3 is also provided with a card slot, in which a screwdriver bit 5 is carded and accommodated, and the screwdriver bit 5 includes a cross screwdriver bit or a flat screwdriver bit.
[0049] The outer side of the handle 2 is also provided with an anti-slip sheet to facilitate the user to hold it stably. Embodiment 4:
[0050] like Figures 1 to 14As shown, an anti-twist electric tool of the present invention comprises a handle 2, the upper end of the handle 2 is connected to a main body 1, a motor 8 is arranged in the main body 1, the output shaft of the motor 8 is connected to a transmission device 9 through a reducer, the transmission device 9 is connected to a drill clamp 11 arranged at the front end of the main body 1, a connecting seat 3 is arranged at the lower end of the handle 2 for connecting to a power source, a trigger 4 is arranged on the handle 2, a control chip 6 is arranged in the handle 2 or on the lower side of the handle 2, the control chip 6 is electrically connected to the motor 8, and an electronic gyroscope 7 is arranged on the control chip 6 The combination of the electronic gyroscope and the control chip makes the operation of the power tool more intelligent. The operator only needs to perform simple operations to achieve precise adjustment of the torque and automatic activation of the anti-twist function, which greatly improves the convenience and comfort of use. When the trigger 4 is pressed, the control chip 6 controls the motor 8 to rotate. When the electronic gyroscope 7 detects a sudden change in the operation of the power tool, the sudden change in operation refers to a deflection of the handle within 20 milliseconds, and the angular acceleration of the deflection is -0.5g~0.5g, the control chip 6 controls the motor 8 to stop.
[0051] When the power tool encounters unexpected resistance or sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense and transmit signals to the control chip, which immediately responds and stops the motor rotation, effectively avoiding the risk of operator hand injury and damage to workpieces and tools caused by overload, twisting, etc., greatly improving the safety of operation; because it can respond in time and prevent overload and twisting, this technical solution effectively reduces the wear and damage of the power tool under abnormal working conditions, extends the service life of the tool, and reduces maintenance costs and replacement frequency.
[0052] The rear end of the connecting seat 3 is also provided with a card slot, in which a screwdriver bit 5 is carded and accommodated, and the screwdriver bit 5 includes a cross screwdriver bit or a flat screwdriver bit.
[0053] The outer side of the handle 2 is also provided with an anti-slip sheet to facilitate the user to hold it stably. Embodiment 5:
[0054] like Figures 1 to 14As shown, an anti-twist electric tool of the present invention comprises a handle 2, the upper end of the handle 2 is connected to a main body 1, a motor 8 is arranged in the main body 1, the output shaft of the motor 8 is connected to a transmission device 9 through a reducer, the transmission device 9 is connected to a drill clamp 11 arranged at the front end of the main body 1, a connecting seat 3 is arranged at the lower end of the handle 2 for connecting to a power source, a trigger 4 is arranged on the handle 2, a control chip 6 is arranged in the handle 2 or on the lower side of the handle 2, the control chip 6 is electrically connected to the motor 8, an electronic gyroscope 7 is arranged on the control chip 6, and the combination of the electronic gyroscope and the control chip makes the operation of the electric tool more intelligent The operator only needs simple operations to achieve precise adjustment of the torque and automatic activation of the anti-twist function, which greatly improves the convenience and comfort of use. When the trigger 4 is pressed, the control chip 6 controls the motor 8 to rotate. When the electronic gyroscope 7 detects a sudden change in the operation of the power tool, the sudden change in operation refers to an abnormal increase of not less than 15% in the motor power within 0 to 20 milliseconds, and the handle is deflected, and the angular acceleration of the deflection is -0.3g to 0.3g. The abnormal increase in the power of the motor 8 refers to an increase in the power of the motor 8 exceeding the maximum rated power under the current setting, and the control chip 6 controls the motor 8 to stop.
[0055] When the power tool encounters unexpected resistance or sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense and transmit signals to the control chip, which immediately responds and stops the motor rotation, effectively avoiding the risk of operator hand injury and damage to workpieces and tools caused by overload, twisting, etc., greatly improving the safety of operation; because it can respond in time and prevent overload and twisting, this technical solution effectively reduces the wear and damage of the power tool under abnormal working conditions, extends the service life of the tool, and reduces maintenance costs and replacement frequency.
[0056] The rear end of the connecting seat 3 is also provided with a card slot, in which a screwdriver bit 5 is carded and accommodated, and the screwdriver bit 5 includes a cross screwdriver bit or a flat screwdriver bit.
[0057] The outer side of the handle 2 is also provided with an anti-slip sheet to facilitate the user to hold it stably.
[0058] In the above embodiment and other embodiments, a speed regulating switch may be further provided on the main body 1 , and the speed regulating switch is electrically connected to the control chip 6 , and the control chip 6 controls the rotation speed of the motor 8 through the speed regulating switch.
[0059] In the above embodiment and other embodiments, a torque regulator is also movably provided on the main body 1, and the required torque gear can be flexibly set through the torque regulator.
[0060] In the above embodiment and other embodiments, the reducer includes a multi-stage planetary reducer or a parallel shaft gear reducer or a worm gear reducer, and those skilled in the art can select a suitable reducer according to actual needs.
[0061] In other embodiments, the thresholds of t, α, λ, and β may be adjusted according to the actual power tool and actual demand environment.
[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An anti-twist electric tool, comprising a handle (2), the upper end of the handle (2) being connected to a main body (1), a motor (8) being arranged in the main body (1), an output shaft of the motor (8) being connected to a transmission (9) via a reducer, the transmission (9) being connected to a drill clamp (11) arranged at the front end of the main body (1), a connecting seat (3) being arranged at the lower end of the handle (2) for connecting to a power source, a trigger (4) being arranged on the handle (2), and characterized in that: A control chip (6) is arranged inside the handle (2) or on the lower side of the handle (2), the control chip (6) is electrically connected to the motor (8), an electronic gyroscope (7) is arranged on the control chip (6), when the trigger (4) is pressed, the control chip (6) controls the motor (8) to rotate, when the electronic gyroscope (7) detects that the operation of the electric tool suddenly changes, the control chip (6) controls the motor (8) to stop.
2. The anti-twist electric tool according to claim 1, characterized in that: The sudden change in operation means that within t, the handle (2) is deflected, and the angular acceleration of the deflection is α.
3. The anti-twist electric tool according to claim 2, characterized in that: The range of t is 0 to 100 milliseconds, and the range of α is -0.5g to 0.5g.
4. The anti-twist electric tool according to claim 1, characterized in that: The sudden change in operation means that within t, the power of the motor (8) increases abnormally by no less than λ, and at the same time, the handle (2) deflects, and the angular acceleration of the deflection is β.
5. The anti-twist electric tool according to claim 4, characterized in that: The t range is 0 to 100 milliseconds, the λ is 15%, and the β is -0.3g to 0.3g.
6. The anti-twist electric tool according to claim 4, characterized in that: The abnormal increase in the power of the motor (8) means that the power increase of the motor (8) exceeds the maximum rated power under the current setting.
7. The anti-twist electric tool according to claim 1, characterized in that: The rear end of the connecting seat (3) is also provided with a card slot, in which a screwdriver bit (5) is carded and accommodated.
8. The anti-twist electric tool according to claim 1, characterized in that: The main body (1) is also provided with a speed regulating switch, the speed regulating switch being electrically connected to the control chip (6), and the control chip (6) controlling the rotation speed of the motor (8) via the speed regulating switch.
9. The anti-twist electric tool according to claim 1, characterized in that: The reducer includes a multi-stage planetary reducer, a parallel shaft gear reducer, or a worm gear reducer.
10. The anti-twist electric tool according to claim 1, characterized in that: The main body (1) is also movably provided with a torque regulator.