Anti-twisting electric tool
By combining an electronic gyroscope with a control chip, sudden changes in the operation of power tools can be detected in real time and the motor can be stopped. This solves the safety hazards caused by overload or torsion in traditional power tools, achieves rapid response and precise adjustment, and improves the safety and durability of power tools.
Patent Information
- Application Number
- CN202422460761.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Traditional power tools are prone to injury to the operator and damage to the tool due to overload or torsion when encountering resistance or improper operation. Moreover, the existing anti-torsion function has a slow response speed and is not precise enough.
By combining an electronic gyroscope with a control chip, it can detect sudden changes in the operation of power tools in real time and control the motor to stop, including the detection of abnormal handle deflection angle acceleration and motor power, so as to achieve rapid response and precise adjustment.
It improves the safety and durability of power tools, reduces the risks caused by overload and torsion, extends tool life and reduces maintenance costs, and enhances the ease and comfort of operation.
Smart Images
Figure CN223493187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power tool technology, and in particular to an anti-torsion power tool. Background Technology
[0002] In the field of power tools, especially in drilling and tightening screws, power tools are widely used due to their efficiency and convenience. However, traditional power tools have certain safety hazards during use. In particular, when encountering sudden large resistance or improper operation that causes the tool to twist unexpectedly, it may cause injury to the operator and may also damage the workpiece or the tool itself.
[0003] Specifically, when power tools encounter hard materials or suddenly jam while drilling or tightening screws, if the operator fails to notice and take measures in time, the power tool may be damaged due to overload or even twist, causing injury to the operator's hand. In addition, in certain specific working environments, such as working at heights or in confined spaces, the consequences of accidental twisting may be even more serious.
[0004] To address the aforementioned issues, some power tools with anti-torque functions have emerged on the market. However, most of these tools employ mechanical structures, such as clutches, to achieve this function. While these mechanical structures can prevent overload and reverse rotation to some extent, their response speed is slow and their adjustment is not precise enough. Therefore, it is necessary to develop a more intelligent, faster-responding, and more precisely adjustable anti-torque power tool.
[0005] Based on this, the applicant proposed an anti-torsion power tool to solve the above technical problems. Utility Model Content
[0006] This utility model addresses the shortcomings of existing technologies by providing an anti-torsion power tool.
[0007] This utility model is solved by the following technical solution:
[0008] An anti-torsion power tool includes a handle, with a main body connected to the upper end of the handle. A motor is disposed within the main body, and the output shaft of the motor is connected to a transmission via a reducer. The transmission is connected to a drill chuck disposed at the front end of the main body. A connecting seat is disposed at the lower end of the handle for connecting to a power source. A trigger is disposed on the handle. A control chip is disposed inside or on the lower side of the handle, and the control chip is electrically connected to the motor. An electronic gyroscope is disposed on the control chip. When the trigger is pressed, the control chip controls the motor to rotate. When the electronic gyroscope detects a sudden change in the operation of the power tool, the control chip controls the motor to stop rotating.
[0009] Preferably, the sudden change in operation refers to the deflection of the grip within a time interval t, where the angular acceleration of the deflection is α.
[0010] Preferably, the sudden change in operation refers to the abnormal increase in motor power of not less than λ within t, while the handle deflects, and the angular acceleration of the deflection is β.
[0011] Preferably, the range of t is 0 to 100 milliseconds.
[0012] Preferably, the α is -0.5g to 0.5g.
[0013] Preferably, the λ is 15%.
[0014] Preferably, the β is -0.3g to 0.3g.
[0015] Preferably, the abnormal increase in motor power refers to the increase in motor power exceeding the currently set maximum rated power.
[0016] Preferably, the rear end of the connector is further provided with a slot for storing a bit.
[0017] Preferably, the main body is further provided with a speed control switch, which is electrically connected to the control chip, and the control chip controls the speed of the motor through the speed control switch.
[0018] Preferably, the reducer includes a multi-stage planetary reducer, a parallel shaft gear reducer, or a worm gear reducer.
[0019] Preferably, a torque adjuster is also movably disposed on the main body.
[0020] Preferably, the outer side of the grip is also provided with an anti-slip plate.
[0021] The beneficial effects of this utility model are as follows:
[0022] 1. Enhanced safety: When power tools encounter unexpected resistance or are twisted sharply due to improper operation during operation, the electronic gyroscope can quickly sense and transmit signals to the control chip. The control chip then responds immediately and stops the motor from rotating, effectively avoiding the risk of operator hand injury and workpiece / tool damage caused by overload, twisting, etc., and greatly improving the safety of operation.
[0023] 2. Improved durability: By responding promptly and preventing overload and torsion, this technical solution effectively reduces wear and damage to power tools under abnormal working conditions, extends tool life, and reduces maintenance costs and replacement frequency;
[0024] 3. Enhanced User Experience: The combination of electronic gyroscope and control chip makes the operation of power tools more intelligent. Operators can easily adjust the torque and automatically activate the anti-torsion function with simple operations, greatly improving the convenience and comfort of use. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.
[0026] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0027] Figure 2 This is a three-dimensional structural diagram of the present invention.
[0028] Figure 3 This is a schematic diagram of the internal three-dimensional structure of this utility model.
[0029] Figure 4 This is a three-dimensional half-sectional view of the present invention.
[0030] Figure 5 This is the principle of this utility model. Figure 1 .
[0031] Figure 6 This is the principle of this utility model. Figure 2 .
[0032] Figure 7 This is the principle of this utility model. Figure 3 .
[0033] Figure 8 This is the principle of this utility model. Figure 4 .
[0034] Figure 9 This is the principle of this utility model. Figure 5 .
[0035] Figure 10 This is the principle of this utility model. Figure 6 .
[0036] Figure 11 This is the principle of this utility model. Figure 7 .
[0037] Figure 12 This is the principle of this utility model. Figure 8 .
[0038] Figure 13 This is the principle of this utility model. Figure 9 .
[0039] Figure 14 This is the principle of this utility model. Figure 10 .
[0040] In the diagram: 1. Main body, 11. Drill chuck, 2. Handle, 3. Connecting seat, 4. Trigger, 5. Bit, 6. Control chip, 7. Electronic gyroscope, 8. Motor, 9. Transmission device. Detailed Implementation
[0041] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1:
[0042] like Figures 1 to 14 As shown, this utility model discloses an anti-torsion power tool, including a handle 2. A main body 1 is connected to the upper end of the handle 2. A motor 8 is housed within the main body 1. The output shaft of the motor 8 is connected to a transmission 9 via a reducer. The transmission 9 is connected to a drill chuck 11 located at the front end of the main body 1. A connecting seat 3 is located at the lower end of the handle 2 for connecting to a power source. A trigger 4 is mounted on the handle 2. A control chip 6 is located inside or on the lower side of the handle 2, electrically connected to the motor 8. An electronic gyroscope is mounted on the control chip 6. 7. The combination of electronic gyroscope and control chip makes the operation of power tools more intelligent. The operator can achieve precise torque adjustment and automatic activation of anti-torsion function with simple operation, 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 the deflection of the handle within 5 milliseconds, and the angular acceleration of the deflection is -0.25g to 0.25g. The control chip 6 controls the motor 8 to stop rotating.
[0043] When a power tool encounters unexpected resistance or undergoes sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense this and transmit a signal to the control chip. The control chip then immediately responds and stops the motor from rotating, effectively avoiding the risk of operator hand injury and damage to the workpiece and tool caused by overload or twisting, thus greatly improving operational safety. Because it can respond promptly and prevent overload and twisting, this technical solution effectively reduces wear and damage to power tools under abnormal working conditions, extends the tool's service life, and reduces maintenance costs and replacement frequency.
[0044] The rear end of the connector 3 is also provided with a slot, in which a bit 5 is stored, including a Phillips head bit or a flathead bit.
[0045] The outer side of the grip 2 is also provided with an anti-slip plate to facilitate stable gripping by the user. Example 2:
[0046] like Figures 1 to 14 As shown, this utility model discloses an anti-torsion power tool, including a handle 2. A main body 1 is connected to the upper end of the handle 2. A motor 8 is housed within the main body 1. The output shaft of the motor 8 is connected to a transmission 9 via a reducer. The transmission 9 is connected to a drill chuck 11 located at the front end of the main body 1. A connecting seat 3 is located at the lower end of the handle 2 for connecting to a power source. A trigger 4 is mounted on the handle 2. A control chip 6 is located inside or on the lower side of the handle 2, electrically connected to the motor 8. An electronic gyroscope 7 is mounted on the control chip 6. The combination of electronic gyroscope and control chip makes the operation of power tools more intelligent. The operator can achieve precise torque adjustment and automatic activation of anti-torsion function with simple operation, 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 the deflection of the handle within 10 milliseconds, and the angular acceleration of the deflection is -0.35g to 0.35g. The control chip 6 controls the motor 8 to stop rotating.
[0047] When a power tool encounters unexpected resistance or undergoes sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense this and transmit a signal to the control chip. The control chip then immediately responds and stops the motor from rotating, effectively avoiding the risk of operator hand injury and damage to the workpiece and tool caused by overload or twisting, thus greatly improving operational safety. Because it can respond promptly and prevent overload and twisting, this technical solution effectively reduces wear and damage to power tools under abnormal working conditions, extends the tool's service life, and reduces maintenance costs and replacement frequency.
[0048] The rear end of the connector 3 is also provided with a slot, in which a bit 5 is stored, including a Phillips head bit or a flathead bit.
[0049] The outer side of the grip 2 is also provided with an anti-slip plate to facilitate stable gripping by the user. Example 3:
[0050] like Figures 1 to 14 As shown, this utility model discloses an anti-torsion power tool, including a handle 2. A main body 1 is connected to the upper end of the handle 2. A motor 8 is housed within the main body 1. The output shaft of the motor 8 is connected to a transmission 9 via a reducer. The transmission 9 is connected to a drill chuck 11 located at the front end of the main body 1. A connecting seat 3 is located at the lower end of the handle 2 for connecting to a power source. A trigger 4 is mounted on the handle 2. A control chip 6 is located inside or on the lower side of the handle 2, electrically connected to the motor 8. An electronic gyroscope is mounted on the control chip 6. 7. The combination of electronic gyroscope and control chip makes the operation of power tools more intelligent. The operator can achieve precise torque adjustment and automatic activation of anti-torsion function with simple operation, 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 the deflection of the handle within 15 milliseconds, and the angular acceleration of the deflection is -0.4g to 0.4g. The control chip 6 controls the motor 8 to stop rotating.
[0051] When a power tool encounters unexpected resistance or undergoes sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense this and transmit a signal to the control chip. The control chip then immediately responds and stops the motor from rotating, effectively avoiding the risk of operator hand injury and damage to the workpiece and tool caused by overload or twisting, thus greatly improving operational safety. Because it can respond promptly and prevent overload and twisting, this technical solution effectively reduces wear and damage to power tools under abnormal working conditions, extends the tool's service life, and reduces maintenance costs and replacement frequency.
[0052] The rear end of the connector 3 is also provided with a slot, in which a bit 5 is stored, including a Phillips head bit or a flathead bit.
[0053] The outer side of the grip 2 is also provided with an anti-slip plate to facilitate stable gripping by the user. Example 4:
[0054] like Figures 1 to 14As shown, this utility model discloses an anti-torsion power tool, including a handle 2. A main body 1 is connected to the upper end of the handle 2. A motor 8 is housed within the main body 1. The output shaft of the motor 8 is connected to a transmission 9 via a reducer. The transmission 9 is connected to a drill chuck 11 located at the front end of the main body 1. A connecting seat 3 is located at the lower end of the handle 2 for connecting to a power source. A trigger 4 is mounted on the handle 2. A control chip 6 is located inside or on the lower side of the handle 2, electrically connected to the motor 8. An electronic gyroscope is mounted on the control chip 6. 7. The combination of electronic gyroscope and control chip makes the operation of power tools more intelligent. The operator can achieve precise torque adjustment and automatic activation of anti-torsion function with simple operation, 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 the deflection of the handle within 20 milliseconds, and the angular acceleration of the deflection is -0.5g to 0.5g. The control chip 6 controls the motor 8 to stop rotating.
[0055] When a power tool encounters unexpected resistance or undergoes sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense this and transmit a signal to the control chip. The control chip then immediately responds and stops the motor from rotating, effectively avoiding the risk of operator hand injury and damage to the workpiece and tool caused by overload or twisting, thus greatly improving operational safety. Because it can respond promptly and prevent overload and twisting, this technical solution effectively reduces wear and damage to power tools under abnormal working conditions, extends the tool's service life, and reduces maintenance costs and replacement frequency.
[0056] The rear end of the connector 3 is also provided with a slot, in which a bit 5 is stored, including a Phillips head bit or a flathead bit.
[0057] The outer side of the grip 2 is also provided with an anti-slip plate to facilitate stable gripping by the user. Example 5:
[0058] like Figures 1 to 14As shown, this utility model discloses an anti-torsion power tool, including a handle 2. A main body 1 is connected to the upper end of the handle 2. A motor 8 is housed within the main body 1. The output shaft of the motor 8 is connected to a transmission 9 via a reducer. The transmission 9 is connected to a drill chuck 11 located at the front end of the main body 1. A connecting seat 3 is located at the lower end of the handle 2 for connecting to a power source. A trigger 4 is mounted on the handle 2. A control chip 6 is located inside 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 mounted on the control chip 6. The combination of the electronic gyroscope and the control chip makes the operation of the power tool more intelligent. With this technology, the operator can easily adjust the torque precisely and automatically activate the anti-torque function, greatly improving ease of use and comfort. 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, which means that within 0 to 20 milliseconds, the motor power abnormally increases by no less than 15%, and the handle deflects with an angular acceleration of -0.3g to 0.3g, and the abnormal increase in motor 8 power exceeds the currently set maximum rated power, the control chip 6 controls the motor 8 to stop rotating.
[0059] When a power tool encounters unexpected resistance or undergoes sudden twisting due to improper operation during operation, the electronic gyroscope can quickly sense this and transmit a signal to the control chip. The control chip then immediately responds and stops the motor from rotating, effectively avoiding the risk of operator hand injury and damage to the workpiece and tool caused by overload or twisting, thus greatly improving operational safety. Because it can respond promptly and prevent overload and twisting, this technical solution effectively reduces wear and damage to power tools under abnormal working conditions, extends the tool's service life, and reduces maintenance costs and replacement frequency.
[0060] The rear end of the connector 3 is also provided with a slot, in which a bit 5 is stored, including a Phillips head bit or a flathead bit.
[0061] The outer side of the grip 2 is also provided with an anti-slip plate to facilitate stable gripping by the user.
[0062] In the above embodiments and other embodiments, a speed control switch may also be provided on the main body 1. The speed control switch is electrically connected to the control chip 6, and the control chip 6 controls the speed of the motor 8 through the speed control switch.
[0063] In the above embodiments and other embodiments, a torque regulator is also movably disposed on the main body 1, through which the required torque level can be flexibly set.
[0064] In the above embodiments and other embodiments, the reducer includes a multi-stage planetary reducer, a parallel shaft gear reducer, or a worm gear reducer. Those skilled in the art can select a suitable reducer according to actual needs.
[0065] In other embodiments, the thresholds for t, α, λ, and β can be adjusted according to the actual power tool and the actual needs of the environment.
[0066] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An anti-torsion power tool, comprising a handle (2), the upper end of which is connected to a body (1), a motor (8) is disposed inside the body (1), the output shaft of the motor (8) is connected to a transmission (9) via a reducer, the transmission (9) is connected to a drill chuck (11) disposed at the front end of the body (1), a connecting seat (3) is disposed at the lower end of the handle (2) for connecting to a power source, and a trigger (4) is disposed on the handle (2), characterized in that: A control chip (6) is provided inside the grip (2) or on the lower side of the grip (2). The control chip (6) is electrically connected to the motor (8). An electronic gyroscope (7) is provided 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 a sudden change in the operation of the power tool, the control chip (6) controls the motor (8) to stop rotating.
2. The anti-torsion power tool according to claim 1, characterized in that: The sudden change in operation refers to the deflection of the grip (2) within t, with an angular acceleration of α.
3. The anti-torsion power 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-torsion power tool according to claim 1, characterized in that: The sudden change in operation refers to the abnormal increase in power of the motor (8) within t, which is not less than λ, while the grip (2) deflects, and the angular acceleration of the deflection is β.
5. The anti-torsion power tool according to claim 4, characterized in that: The range of t is 0 to 100 milliseconds, the value of λ is 15%, and the value of β is -0.3g to 0.3g.
6. The anti-torsion power tool according to claim 4, characterized in that: The abnormal increase in the power of the motor (8) refers to the increase in the power of the motor (8) exceeding the maximum rated power under the current setting.
7. The anti-torsion power tool according to claim 1, characterized in that: The rear end of the connector (3) is also provided with a slot, in which a bit (5) is stored.
8. The anti-torsion power tool according to claim 1, characterized in that: The main body (1) is also provided with a speed control switch, which is electrically connected to the control chip (6). The control chip (6) controls the speed of the motor (8) through the speed control switch.
9. The anti-torsion power 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-torsion power tool according to claim 1, characterized in that: A torque regulator is also movably mounted on the main body (1).