Digital key

Abstract

Digital key comprising a key body (1) and a control panel (2) arranged on the key body (1), wherein the control panel (2) comprises a screen (21), characterized in that it further comprises the following: a rotary knob module (24) and / or a rocker lever module (25), comprising at least one rotary knob (241) and / or one rocker lever (251), each arranged on the control panel (2), wherein they detect or respond to a rotary, push, pull and / or tilt movement of an operator in order to output a first test signal; a signal processing module (26) which is connected to the rotary knob module (24) and / or the rocker switch module (25) in terms of signal technology in order to receive the first test signal and to select an operating mode according to the first test signal, or to convert the first test signal into a corresponding input command based on the current operating mode, the input command includes: a preset of the target output torque, a data display, a data storage, a unit conversion, a selection of the method for torque measurement, and a blocking or shielding of the first test signal.

Description

Technical field

[0001] The present application relates to the technical field of fastening tools, in particular a digital key. Background technology

[0002] Torque wrenches are a common tool for tightening and loosening fasteners. With the rapid advancement of the smart assembly industry, manufacturing sectors—particularly the automotive and precision instrument industries—are placing increasingly stringent demands on torque accuracy during assembly and tightening processes. For certain threaded fasteners that require high assembly precision and are prone to damage, the torque applied during assembly must be kept within a specified range.

[0003] To enable a precise determination of the torque applied by a torque wrench, digital wrenches have been integrated into the state of the art. The digital torque wrench uses an integrated torque sensor to drive the wrench's ratchet mechanism and simultaneously records the output torque value in real time. The operator can read the torque values ​​on the screen integrated into the wrench's control panel and simultaneously preset the wrench's output torque or configure the torque measurement modes using the buttons on the control panel.

[0004] In practice, if it is necessary to preset the target output torque or adjust the torque measurement mode, the operator has to make the settings by pressing buttons on the control panel, which is inefficient. Content of the invention

[0005] This application addresses the problem that existing digital torque wrenches only allow the presetting of the target output torque or the setting of the torque measurement modes via buttons, resulting in unchanged operation and thus low operational efficiency. The objective of this application is to provide a digital torque wrench that significantly increases the ease of use and improves the efficiency of fastening tasks by integrating rotary knobs, toggle levers, or a combination of these. Building upon the aforementioned digital torque wrench, the second objective of this application is to provide a control method for a digital wrench, the specific implementation of which is described as follows: A digital key comprising a key body and a control panel arranged on the key body, the control panel comprising a screen, while the key further comprising: a rotary knob module and / or a toggle lever module, comprising at least one rotary knob and / or a toggle lever, each arranged on the control panel, detecting or responding to a rotary, push, pull and / or tilt movement of an operator in order to output an initial test signal; a signal processing module that is connected to the rotary knob module and / or the rocker switch module in terms of signal technology in order to receive the first test signal and to select an operating mode according to the first test signal or based on the integrated control program unit, or to convert the first test signal into a corresponding input command based on the current operating mode, the input command includes: a preset of the target output torque, a data display, a data storage, a unit conversion, a selection of the method for torque measurement, and a blocking or shielding of the first test signal.

[0006] The aforementioned technical solution allows various operating modes and parameter settings to be selected and configured directly via the rotary knob on the control panel. This is done by turning, pushing, or pulling the rotary knob, enabling convenient, efficient, and quick operation.

[0007] Furthermore, the control panel also includes a keypad module, wherein the keypad module includes at least one key that is arranged on the control panel and is connected to the signal processing module in order to detect and react to the operator's pressing movement in order to output a second test signal. wherein the signal processing module receives the second test signal and reacts to it in order to select an operating mode, or, based on the current operating mode, to convert the second test signal into a corresponding input command.

[0008] The aforementioned technical solution allows for a combined operating method when selecting modes or setting parameters on the digital key, utilizing both buttons and rotary knobs. This increases ease of use and improves fastening efficiency.

[0009] Furthermore, the key body is equipped with a misuse protection module to prevent an incorrect output of the first test signal due to an accidental touch of the rotary knob. the misuse protection module includes the following: a touch protection cover which is rotatably mounted on the control panel on one side, wherein in the initial state the touch protection cover conceals the rotary knob; or a stop block arranged on the control panel via a rotary shaft and comprising a tilting section and a stop section that touches a side wall of the rotary knob, wherein the rotary shaft is arranged between the tilting section and the stop section, and a torsion spring is provided between the stop block and the control panel, wherein when the torsion spring is in its initial state, the stop section rests against the side wall of the rotary knob.

[0010] The aforementioned technical solution prevents preset parameters from being changed by accidental touches during operation of the key, thus ensuring the precision of the key's output torque.

[0011] Furthermore, the key body is equipped with a misuse protection module to prevent an incorrect output of the first test signal due to accidental contact with the rotary knob and / or the rocker lever. the misuse protection module includes the following: a request interlock unit arranged in the signal processing module to monitor the first test signal or the second test signal that has a predetermined signal property and to output an interlock signal; or an operating state detection unit comprising a level sensor or accelerometer arranged on the key body to detect and output a status detection signal that characterizes the operating state of the key; or a handle sensing unit comprising a pressure sensor located on the key handle, designed to detect and output a pressure sensing signal that characterizes the force of the pressure exerted by the operator when gripping the key; and a shielding unit located in the signal processing module that receives and reacts to the locking signal, the status detection signal, or the pressure sensing signal, thereby interrupting the response to the first test signal unless it exhibits certain signal characteristics.

[0012] The aforementioned technical solution allows the initial test signal to be shielded or blocked at the software control level. This prevents accidental changes to relevant control parameters during key operation, thus ensuring the precision of the key's output torque.

[0013] Furthermore, the rotary knob module comprises a screw cap and a supporting connecting rod, the supporting connecting rod having at its end furthest from the screw cap a potentiometer or a Hall sensor for detecting the rotation angle of the rotary knob, wherein the rocker arm module comprises a rocker arm and a rocker arm potentiometer arranged below the rocker arm for detecting the direction and angle of the rocker arm's movement, wherein the potentiometer or the Hall sensor as well as the rocker arm potentiometer are all connected to the signal processing module and output the first test signal to the signal processing module.

[0014] The above-mentioned technical solution allows various control commands to be issued to the signal processing module by turning the screw cap of the rotary knob or pivoting the lever, thus enabling efficient adjustment of the parameters of the digital key.

[0015] Furthermore, the rotary knob comprises a screw cap and a supporting connecting rod, the supporting connecting rod having at its end furthest from the screw cap a potentiometer or a Hall sensor for detecting the rotation angle of the rotary knob, wherein the supporting connecting rod comprises an upper connecting rod and a lower connecting rod, wherein the upper connecting rod has a sliding groove formed along its axial direction at its end furthest from the screw closure, while one end of the lower connecting rod engages in the sliding groove and is arranged to be displaceable coaxially with the lower connecting rod, wherein the inner wall of the upper connecting rod has an annular projection arranged circumferentially, wherein the outer wall of the lower connecting rod is provided with several rows of annular grooves that fit with the annular projection, wherein the annular projection is provided with a conductive layer and the several rows of annular grooves are each provided with a matching contact point, where, when the ring-shaped projection engages with the ring-shaped groove, the appropriate contact point establishes an electrical connection.

[0016] The above-mentioned technical solution not only allows the rotation angle of the rotary knob to be detected, but also enables different test signals to be output by pulling or pushing the rotary knob to make contact with different contact points.

[0017] Furthermore, the rocker arm module comprises a screw cap and a rocker arm, wherein the end of the rocker arm furthest from the screw cap is connected to a pivot-tilt mechanism, wherein the swivel-tilt mechanism comprises a cross-shaped stationary frame, an X-axis support plate and a Y-axis support plate, which are perpendicular to each other and are arc-shaped, wherein a slot-shaped bore is formed in the respective longitudinal direction on both the X-axis support plate and the Y-axis support plate, wherein the X-axis support plate and the Y-axis support plate are rotatably connected at both ends to an end of the stationary frame via bearings, and a first potentiometer or a first Hall sensor is arranged at each end of both the X-axis support plate and the Y-axis support plate to detect their angle of rotation, wherein the first potentiometer or the first Hall sensor is electrically connected to the signal processing module, wherein the rocker arm comprises an inner rocker arm and an outer rocker arm which are mounted coaxially within each other, wherein one end of the inner rocker arm is connected to the screw cap while the other end is a free end, wherein a locking structure is provided between the inner rocker arm and the outer rocker arm to prevent vertical displacement of the two components, wherein a universal joint is arranged in the middle of the stationary frame, wherein the middle section of the outer rocker arm is attached to the universal joint, wherein the end of the outer rocker arm furthest from the screw cap passes through the slotted bore on the X-axis support plate and on the Y-axis support plate and extends downwards, wherein a fixed base plate is arranged below the universal joint, wherein a rotary block is rotatably arranged on the fixed base plate at the orthogonal projection position of the universal joint on the fixed base plate, wherein the rotary block has a detent groove, wherein the shape and size of the detent groove correspond to those of the free end of the inner rocker arm, wherein a second potentiometer or a second Hall sensor is arranged on the rotary block to detect its angle of rotation, wherein the second potentiometer or the second Hall sensor is electrically connected to the signal processing module, wherein when the inner rocker arm and the outer rocker arm are in a first relative position, the free end of the inner rocker arm detaches from the pivot block, while the rocker arm then pivots and drives either the X-axis support plate or the Y-axis support plate to move, wherein when the inner rocker arm and the outer rocker arm are in a second relative position, the free end of the inner rocker arm is connected to the pivot block, while turning the screw cap on the rocker arm sets the pivot block in rotation.

[0018] The aforementioned technical solution allows command signals to be issued not only by turning the screw cap but also by pivoting the rotary knob. Different operating methods can be configured depending on the command type, making operation via the control panel more convenient and improving fastening efficiency.

[0019] Furthermore, the signal processing module also includes the following: a data storage unit that is connected to the signal processing unit in terms of data technology and is configured to assign and store the input command type and its operational accuracy according to the first test signal in the respective operating mode; a deviation correction unit, which is connected to the data storage unit and the signal processing unit via data technology, determines and confirms the current operating mode from the data storage unit based on the first test signal, confirms the input command type and performs a deviation correction of the first test signal according to its corresponding operating accuracy, where the operational accuracy includes the accuracy of the correspondence between the rotation angle of the rotary knob and the input command, wherein the rotation angle of the rotary knob and / or the tilt angle of the rocker arm is divided into a predetermined number of characteristic segments based on the operational accuracy; the current rotation angle of the rotary knob and / or the current tilt angle of the rocker arm is detected and the respective characteristic segment in which it is located is confirmed; and the respective characteristic segment is used as the current rotation angle of the rotary knob and / or the current tilt angle of the rocker arm.

[0020] The aforementioned technical solution allows the rotary knob's angle to correspond to varying degrees of accuracy in different operating modes. This enables the knob to set precise numerical values, offering both convenience and efficiency. Simultaneously, a deviation correction is applied to the rotary knob's angle depending on the operating mode. This means that, in practice, even if the rotary knob's angle slightly exceeds the preset angle, the signal processing module can still identify and confirm the command it represents. This not only increases accuracy but also improves operational efficiency.

[0021] Furthermore, the control panel also includes a buzzer, which is connected to the signal processing module for control purposes, and at least one LED light.

[0022] The above-mentioned technical solution allows the operator to be given acoustic and visual cues or warnings during the use of the key.

[0023] A control procedure of a digital key, based on the aforementioned digital key and comprising the following, wherein a first test signal, which is output by the rotary knob module and / or the rocker switch module in the respective operating mode, as well as corresponding command information, are set, and assigned and stored as a command reference data table; the current operating mode of the digital key is confirmed and the issued first test signal is verified; an input command is confirmed based on the first test signal or according to the command reference data table, the input command includes: a preset of the target output torque, a data display, a data storage, a unit conversion, a selection of the method for torque measurement, and a blocking or shielding of the first test signal.

[0024] The present application includes at least one of the following advantages: (1) The arrangement of the rotary knob on the key's control panel allows different operating modes to be selected or parameter settings to be adjusted directly during the fastening process by turning, pushing, or pulling the rotary knob. This enables convenient, efficient, and quick operation. (2) By arranging the rocker arm on the key's control panel, certain control commands can be issued according to the different angles and directions of its movement by pivoting the rocker arm, enabling convenient and efficient operation. (3) By arranging the misuse protection module, the first test signal can be shielded or blocked at the mechanical and software control levels. This prevents accidental changes to relevant control parameters during operation of the key, thereby ensuring the precision of the key's output torque. Illustration of the attached figures Fig. Figure 1 shows a schematic overview of the appearance of the digital key of the present application; Fig. Figure 2 shows a front view of the control panel according to the first embodiment; Fig. Figure 3 schematically shows the structure of the control panel with two rotary knobs in the first embodiment; Fig. Figure 4 schematically shows the structure of the control panel with a rotary knob and a rocker switch in the third embodiment; Fig. Figure 5 shows the connection diagram of the respective function modules within the control panel; Fig. Figure 6 illustrates the positional relationship between the stop block and the screw cap; Fig. Figure 7 schematically shows the structure of the supporting connecting rod in one embodiment; Fig. Figure 8 schematically shows the structure of the rocker arm and the rocker arm potentiometer; Fig. Figure 9 schematically shows the structure of the rocker arm and the swivel-tilt mechanism; Fig. Figure 10 schematically shows the structure of the inner rocker arm and the outer rocker arm.

[0025] Included: 1. Key body; 2. Control panel; 21. Screen; 22. Buzzer; 23. LED light; 24. Rotary knob module; 241. Rotary knob; 242. Stop block; 243. Stop section; 244. Tilt section; 2419. Screw cap; 2411. Supporting connecting rod; 2412. Upper connecting rod; 2413. Lower connecting rod; 2414. Annular projection; 2415. Annular groove; 2416. Conductive layer; 2417. Hall sensor; 25. Toggle lever module; 251. Toggle lever; 252. Toggle lever potentiometer; 2511. Inner toggle lever; 2512. Outer toggle lever; 2513. Annular groove; 2514. Elastic rubber ring; 253. Tilt-tilt mechanism; 2530. Fixed frame; 2531. X-axis support plate; 2532. Y-axis support plate; 2533. Slotted bore; 2534. First Hall sensor; 2535. Universal joint; 2536. Fixed base plate; 2537. Detent groove; 2538. Second Hall sensor; 2539. Rotary block; 26. Signal processing module; 27. Button module; 271. Button; 261. Request interlock unit; 262. Shielding unit; 263.Data storage unit; 264. Deviation correction unit; 3. Ratchet mechanism; 4. Socket; 5. Handle. Detailed descriptions

[0026] The embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings.

[0027] In the descriptions of this application, the reference terms “certain embodiments”, “one embodiment”, “some embodiments”, “illustrative embodiments”, “examples”, “detailed examples”, or “some examples” indicate that the specific features, structures, materials, or properties described in connection with the said embodiments or examples are included in at least one embodiment or example of the present application. In this application, the illustrative use of the above terminology does not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or properties may be combined appropriately in one or more embodiments or examples.

[0028] As in Fig. As shown in Figure 1, a digital key comprises a key body 1 and a control panel 2 arranged on the key body 1. The key body 1 primarily includes a ratchet mechanism 3, a socket 4, a torque sensor, a handle 5, etc. The control panel 2 is located on the key body 1 near the handle 5 to facilitate the operator's adjustment of the relevant parameters or operating modes.

[0029] As in the Fig. 2 and Fig. As shown in Figure 5, the control panel 2 comprises a screen 21 and additionally a rotary knob module 24 and / or a rocker switch module 25 as well as a signal processing module 26.

[0030] As described in detail in embodiment I and in the Fig. 2 and Fig. Figure 3 shows the control panel 2 equipped with a rotary knob module 24 and a signal processing module 26. The rotary knob module 24 comprises at least one rotary knob 241, which is arranged on the control panel 2 and detects and reacts to the rotary and / or push / pull movements of the operator in order to output a first test signal. The aforementioned first test signal comprises one or more of the following signals from the rotary knob 241, namely a rotation angle signal, a speed signal, a downward push signal, and an upward pull signal.

[0031] In embodiment II, the control panel 2 is equipped with a rocker switch module 25 and a signal processing module 26. The rocker switch module 25 comprises at least one rocker switch 251, which is arranged on the control panel 2 and detects the operator's rocking movement and reacts to it in order to output a first test signal. The aforementioned first test signal includes both the actuation direction signal and the actuation angle signal of the rocker switch 251.

[0032] In embodiment III and as in Fig. Figure 4 shows the control panel 2 simultaneously equipped with a rotary knob module 24, a rocker arm module 25, and a signal processing module 26. The aforementioned first test signal comprises one or more of the following signals from the rotary knob 241, namely a rotation angle signal, a speed signal, a downward pressure signal, and an upward pull signal, as well as the actuation direction signal and the actuation angle signal of the rocker arm 251.

[0033] The signal processing module 26 is connected to the rotary knob module 24 and / or the rocker arm module in order to receive the first test signal and to select an operating mode of the key according to the first test signal or based on the integrated control program unit, or to convert the first test signal into a corresponding input command based on the current operating mode.

[0034] In the embodiment of the present application, the input command comprises the following: a preset of the target output torque, a data display, a data storage, a unit conversion, a selection of the torque measurement method, and a blocking or shielding of the first test signal. Accordingly, the operating mode primarily comprises a torque preset mode, a data display mode, a data storage mode, a unit conversion mode, a torque measurement mode, etc. Furthermore, the torque measurement mode in turn comprises a peak value mode or a tracking mode.

[0035] The aforementioned technical solution allows the rotary knob 241 and / or the rocker switch 251, located on the control panel 2, to be used directly. Various operating modes can be selected and parameters configured by turning, pushing, or pulling the rotary knob 241, or by operating the rocker switch 251. The entire control panel 2 has an aesthetically pleasing design and allows for convenient operation, thereby improving operational efficiency.

[0036] As in the Fig. 2 and Fig. As shown in Figure 4, the control panel 2 comprises a buzzer 22 and at least one LED 23 to provide the operator with acoustic and visual cues or warnings during operation of the key, for example, to prompt the operator to cease applying force if the actual output torque exceeds the setpoint. These components are connected to and controlled by the signal processing module 26. In the embodiment of the present application, the LED 23 comprises multiple units and has three colors: red, yellow, and green. This configuration enables the output of different acoustic and visual cues under various circumstances.

[0037] In the embodiment of the present application, the aforementioned signal processing module 26 comprises a dedicated DSP chip or microcontroller chip as its core, as well as a data storage unit and peripheral signal processing circuits. Data such as input commands, represented by the first test signal in the respective operating mode, are stored in the data storage unit. After processing by the peripheral signal processing circuits—such as analog-to-digital conversion and filtering for noise reduction—the first test signal is transmitted to the microcontroller chip. The corresponding input command is then identified based on the current operating mode. In torque presetting mode, for example, the angle of rotation contained in the first test signal serves as the input command for setting the preset torque value.If, however, the key is in data display mode, the rotation angle of the rotary knob 241 serves as an input command signal for navigation on the data page.

[0038] In practical production applications, it is preferable that the number of the above-mentioned rotary knobs 241 and / or rocker arms 251 be configured to either one or two.

[0039] To facilitate the operation of the digital key according to the embodiment of the present application, the control panel 2 further comprises a keypad module 27, as shown in the Fig. 2 and Fig. Figure 4 illustrates this. The keypad module 27 comprises at least one key 271, which is located on the control panel 2 and is connected to the signal processing module 26 via signal transmission to detect and respond to the operator's pressing movement in order to output a second test signal. The signal processing module 26 receives the second test signal and reacts to it to select an operating mode based on the integrated control program unit, or, based on the current operating mode, to convert the second test signal into a corresponding input command. The above-mentioned technical solution allows a combined operating method to be used when selecting modes or setting parameters on the digital key, utilizing both keys 271 and rotary knobs 241. This increases ease of use and improves fastening efficiency.

[0040] As in Fig. As shown in Figure 3, the number of the above-mentioned keys is 271, one or more.

[0041] To prevent an erroneous output of the first test signal due to an accidental touch of the rotary knob 241 during operation of the key, the key body 1 is additionally equipped with a misuse protection module that prevents an erroneous output of the first test signal due to an accidental touch of the rotary knob 241.

[0042] The misuse protection module comprises, in detail, a touch protection cover or a stop block 242.

[0043] The touch protection cover consists of a hemispherical housing that is larger than the button. One side of this touch protection cover is rotatably mounted on the control panel 2 via a pivot shaft, with a torsion spring positioned between the two components. In its initial state, the touch protection cover protects the rotary knob 241. When the rotary knob 241 needs to be turned, the touch protection cover opens. After the rotation is complete, the torsion spring automatically actuates the touch protection cover to protect the rotary knob 241 and prevent accidental contact with the rotary knob 241 during subsequent fastening operations.

[0044] In the embodiment of the present application and as in Fig. As shown in Figure 6, the stop block 242 has an overall L-shape, although it can also be configured in alternative shapes for practical applications. It primarily comprises a tilting section 244 and a stop section 243, which is in contact with the side wall of the rotary knob 241. The stop section 243 has rubber pads or protruding teeth on the side facing the rotary knob 241 to increase the friction between the stop section 243 and the rotary knob 241. The central position of the aforementioned stop block 242, namely the connection point between the tilting section 244 and the stop section 243, is rotatably mounted on the control panel 2 via a pivot shaft. A torsion spring is arranged between the stop block 242 and the control panel 2, with the torsion spring being mounted specifically on the pivot shaft. As shown in Figure 6, the stop block 242 is mounted on the control panel 2. Fig. Figure 6 shows that in its initial state, the stop section 243, under the force of the torsion spring, presses against the side wall of the rotary knob 241, thus preventing further rotation of the rotary knob 241. To adjust the rotary knob 241, the operator turns and pushes the tilting section 244 with their index finger. This releases the stop section 243 from the side wall of the rotary knob 241. The rotary knob 241 can then be turned with the thumb. However, as soon as the parameter setting or operating mode is complete and the index finger is released, the stop section 243, driven by the restoring force of the torsion spring, engages the rotary knob 241 again, preventing further rotation.

[0045] The structural design implemented to prevent accidental activation of the rotary knob 241 during key operation is described above.

[0046] Furthermore, in another embodiment, the misuse protection module comprises one or more of the following components: a request interlock unit 261, an operating state detection unit, or a handle detection unit as sources for blocking or shielding signals. These blocking or shielding signals are output to the shielding unit 262 to prevent the signal processing module 26 from responding to the first test signal.

[0047] The request interlock unit 261 is specifically arranged in the signal processing module 26 to monitor the first or second test signal, which has a predetermined signal characteristic, and to output an interlock signal. The first or second test signal, which has the specified signal characteristics, includes, among others: a pressure sensing signal for setting the button 271, a rotation signal of the rotary knob 241 for speed control, or a signal from the button 271 for time or frequency setting, which is output by a specific button 271.

[0048] The operating state detection unit comprises a level sensor or accelerometer arranged on the key body 1 to detect and output a status detection signal that characterizes the operating state of the key.

[0049] The handle detection unit includes a pressure sensor located on the handle 5 of the wrench. The pressure sensor is positioned on the side wall of the handle 5 and is connected to the signal processing module 26. It detects and outputs a pressure signal indicating the magnitude of the pressure exerted by the operator when gripping the wrench. In practical application, the tool is considered to be in use when the pressure value detected by the pressure sensor on the side wall of the handle 5 exceeds a preset threshold. Consequently, the signal processing module 26 automatically ceases its response to the initial test signal.

[0050] The shielding unit 262 is located in the signal processing module 26, which receives and responds to the locking signal, the status detection signal, or the pressure sensing signal, thereby interrupting the response to the first test signal unless it exhibits certain signal characteristics. For example, if the shielding unit 262 receives the locking signal, the rotary knob module 24 will continue to output the first test signal (rotation angle signal), but the signal processing module 26 will no longer respond to the aforementioned first test signal by not performing any corresponding action.

[0051] The aforementioned technical solution allows the initial test signal to be shielded or blocked at the software control level. Simultaneously, the requirements for operator error prevention are met for both the rotary knob 241 and the rocker lever 251. This prevents accidental changes to relevant control parameters during key operation, thereby ensuring the precision of the key's output torque.

[0052] The rotary knob 241 is configured for the rotary knob module 24 as follows, wherein the rotary knob module 24 in embodiment I comprises a screw cap 2419 and a supporting connecting rod 2411, the supporting connecting rod 2411 having at its end furthest from the screw cap 2419 a potentiometer or a Hall sensor 2417 for detecting the rotation angle of the rotary knob 241. The aforementioned potentiometer or Hall sensor 2417 is mounted on a printed circuit board, the detected signal being processed directly via the signal processing circuit.

[0053] As in Fig. Figure 7 shows that in embodiment II the rotary knob 241 comprises a screw cap 2419 and a supporting connecting rod 2411, wherein the supporting connecting rod 2411 has at its end furthest from the screw cap 2419 a potentiometer or a Hall sensor 2417 for detecting the rotation angle of the rotary knob 241.

[0054] The supporting connecting rod 2411 comprises an upper connecting rod 2412 and a lower connecting rod 2413, wherein the upper connecting rod 2412 has a sliding groove formed along its axial direction at its end furthest from the screw closure 2419, while one end of the lower connecting rod 2413 engages in the sliding groove and is arranged to be displaceable coaxially with the lower connecting rod 2413. To prevent relative rotation between the upper connecting rod 2412 and the lower connecting rod 2413, the aforementioned sliding groove is formed as a regular pentagon or hexagon. An annular locking block is provided at the open edge of the sliding groove to prevent the connection between the upper connecting rod 2412 and the lower connecting rod 2413 from loosening.

[0055] As in Fig. Figure 7 shows that the inner wall of the upper connecting rod 2412 has an annular projection 2414 arranged circumferentially, the outer wall of the lower connecting rod 2413 being provided with several rows of annular grooves 2415 that mesh with the annular projection 2414, the annular projection 2414 being provided with a conductive layer 2416, for example a copper coating, and each of the several rows of annular grooves 2415 being provided with a corresponding contact point, the aforementioned contact point being electrically connected to the signal processing circuit via conductive traces. When the annular projection 2414 snaps into the annular groove 2415, the associated contact points establish an electrical connection.

[0056] Based on the configuration described above, not only can the rotation angle of the rotary knob 241 be detected, but different test signals can also be output by pulling or pushing the rotary knob 241 to make contact with different contact points. For example, the torque unit is set by pulling up the upper connecting rod 2412.

[0057] The configuration for the rocker arm module 25 is as follows, as in Fig. Figure 8 shows that the rocker arm module 25 comprises a rocker arm 251 and a rocker arm potentiometer 252 arranged below the rocker arm 251 for detecting the direction and angle of the rocker arm 251's movement. The aforementioned rocker arm potentiometer 252 is connected to the signal processing module 26 and outputs the first test signal to the signal processing module 26.

[0058] As in Fig. 9 and Fig.Figure 10 shows that in a detailed embodiment, the rotary knob 241 comprises a screw cap 2419 and a rocker arm 251, wherein the end of the rocker arm 251 furthest from the screw cap 2419 is connected to a pivot-tilt mechanism 253. The aforementioned pivot-tilt mechanism 253 comprises a cross-shaped fixed frame 2530, wherein the fixed frame 2530 is fixedly connected to the inner wall of the housing of the control panel 2 or to an integrated circuit board.In addition to the stationary frame 2530, the swivel-tilt mechanism further comprises an X-axis support plate 2531 and a Y-axis support plate 2532, which are perpendicular to each other and are arc-shaped, wherein a slot-shaped bore 2533 is formed in the respective longitudinal direction on both the X-axis support plate 2531 and the Y-axis support plate 2532, wherein the X-axis support plate 2531 and the Y-axis support plate 2532 are rotatably connected at both ends to one end of the stationary frame 2530 via bearings, and a first potentiometer or a first Hall sensor 2534 is arranged at each end of both the X-axis support plate 2531 and the Y-axis support plate 2532 to detect their angle of rotation, wherein the first potentiometer or the first Hall sensor 2534 is electrically connected to the signal processing module 26.

[0059] The rocker arm 251 comprises an inner rocker arm 2511 and an outer rocker arm 2512, which are mounted coaxially one inside the other. One end of the inner rocker arm 2511 is connected to the screw cap 2419, while the other end is free. A locking structure is provided between the inner rocker arm 2511 and the outer rocker arm 2512 to prevent vertical displacement of the two components. In the embodiment of the present application, the aforementioned inner rocker arm 2511 is cylindrical, with several turns of elastic rubber rings 2514 fixedly arranged circumferentially along its side wall. The inner side wall of the outer rocker arm 2512 has an annular groove 2513 arranged circumferentially. Due to the structural configuration described above, the inner rocker arm 2511 can rotate relative to the outer rocker arm 2512.By pushing or pulling the screw cap 2419, the relative height position between the inner rocker arm 2511 and the outer rocker arm 2512 can be changed. Furthermore, thanks to the annular groove 2513 and the elastic rubber ring 2514, the inner rocker arm 2511 can be fixed in its position after completing its vertical movement.

[0060] A universal joint (2535) is arranged in the center of the stationary frame 2530, with the central section of the outer wall of the outer rocker arm 2512 being attached to the universal joint 2535. The end of the outer rocker arm 2512 furthest from the screw cap 2419 passes through the slotted bore 2533 in the X-axis support plate 2531 and the Y-axis support plate 2532, respectively, and extends downwards. A stationary base plate 2536 is arranged below the universal joint 2535. In practical applications, this can be implemented directly using the circuit board of the signal processing circuit. A rotary block 2539 is rotatably arranged on the stationary base plate 2536 at the orthogonal projection position of the universal joint 2535 on the stationary base plate 2536, wherein the rotary block 2539 has a detent groove 2537, the shape and size of the detent groove 2537 corresponding to those of the free end of the inner rocker arm 2511.In the embodiment of the present application, the end of the aforementioned inner rocker arm 2511 is shaped as a regular pentagon. Similarly, the cross-section of the aforementioned detent groove 2537 is also shaped as a regular pentagon. A second potentiometer or a second Hall sensor 2538 is arranged on the stationary base plate on the rotary block 2539 to detect the rotation angle of the rotary block 2539. The aforementioned second potentiometer or second Hall sensor 2538 is electrically connected to the signal processing module 26.

[0061] When the inner rocker arm 2511 and the outer rocker arm 2512 are in a first relative position during operation, the free end of the inner rocker arm 2511 disengages from the rotary block 2539, while the rocker arm 2511 then pivots and drives either the X-axis support plate 2531 or the Y-axis support plate 2532 to move. This action allows the rotary knob 241 to pivot. When the inner rocker arm 2511 and the outer rocker arm 2512 are in a second relative position, the free end of the inner rocker arm 2511 is connected to the rotary block 2539, while turning the screw cap 2419 on the rocker arm 2511 sets the rotary block 2539 in rotation. During the control process, various control commands can be issued by flipping the rocker lever 251 or turning the screw cap 2419.

[0062] The aforementioned technical solution allows command signals to be issued not only by turning the screw cap 2419, but also by pivoting the rocker arm 251. Different operating methods can be configured depending on the command type, making operation via the control panel 2 more convenient and improving fastening efficiency.

[0063] In practical application, it is difficult to precisely control the rotation angle of the rotary knob 241. To improve operational accuracy, the signal processing module 26 also includes, or is connected to, a data storage unit 263 and a deviation correction unit 264.

[0064] The data storage unit 263 is connected to the signal processing unit and configured to assign and store the input command type and its operating accuracy according to the first test signal in the respective operating mode. For example, in torque presetting mode, the preset torque increases by 1 N / m with every 10° rotation of the rotary knob 241.

[0065] The deviation correction unit 264 is connected to the data storage unit 263 and the signal processing unit via data transmission. It determines and confirms the current operating mode from the data storage unit 263 based on the first test signal, confirms the input command type, and performs a deviation correction of the first test signal according to its corresponding operating accuracy. The operating accuracy encompasses the accuracy of the correspondence between the rotation angle of the rotary knob 241 and the input command.The deviation correction comprises the following: dividing the rotation angle of the rotary knob 241 and / or the tilt angle of the rocker arm 251 into a predetermined number of characteristic segments based on the operating accuracy; detecting the current rotation angle of the rotary knob 241 and / or the current tilt angle of the rocker arm 251 and confirming the respective characteristic segment in which it is located; and using the respective characteristic segment as the current rotation angle of the rotary knob 241 and / or the current tilt angle of the rocker arm 251. For example, in the example above, a 10° rotation of the rotary knob 241 increases the torque by 1 N / m. If the detected rotation angle of the rotary knob 241 is 8°, the torque increases accordingly by 1 N / m. If the detected rotation angle of the rotary knob 241 is 4°, the preset torque remains unchanged.

[0066] Although exemplary embodiments of the present application have been illustrated and described above, it should be clear that these exemplary embodiments are merely examples and should not be interpreted as limiting the scope of the present application. A person skilled in the art may, within the scope of the present application, make variations, modifications, substitutions, and adaptations to the exemplary embodiments mentioned above.

Claims

[1] Digital key comprising a key body (1) and a control panel (2) arranged on the key body (1), wherein the control panel (2) comprises a screen (21), characterized by , that it further includes the following: a rotary knob module (24) and / or a rocker lever module (25), comprising at least one rotary knob (241) and / or one rocker lever (251), each arranged on the control panel (2), wherein they detect or respond to a rotary, push, pull and / or tilt movement of an operator in order to output a first test signal; a signal processing module (26) which is connected to the rotary knob module (24) and / or the rocker switch module (25) in terms of signal technology in order to receive the first test signal and to select an operating mode according to the first test signal, or to convert the first test signal into a corresponding input command based on the current operating mode, the input command includes: a preset of the target output torque, a data display, a data storage, a unit conversion, a selection of the method for torque measurement, and a blocking or shielding of the first test signal. [2] Digital key according to claim 1, characterized by , that the control panel (2) further comprises a keypad module (27), wherein the keypad module (27) comprises at least one key (271) which is arranged on the control panel (2) and is connected to the signal processing module (26) in order to detect and respond to the operator's pressing movement in order to output a second test signal, wherein the signal processing module (26) receives the second test signal and responds to it in order to select an operating mode or, based on the current operating mode, to convert the second test signal into a corresponding input command. [3] Digital key according to claim 1, characterized by, that the key body (1) is equipped with a misuse protection module to prevent an erroneous output of the first test signal due to an accidental touch of the rotary knob (241), wherein the misuse protection module comprises the following: a touch protection cover which is rotatably arranged on one side on the control panel (2), wherein in the initial state the touch protection cover conceals the rotary knob (241); or a stop block (242) which is arranged on the control panel (2) via a rotating shaft and comprises a tilting section (244) and a stop section (243) which contacts a side wall of the rotary knob (241), wherein the rotating shaft is arranged between the tilting section (244) and the stop section (243), a torsion spring is provided between the stop block (242) and the control panel (2), wherein when the torsion spring is in its initial state, the stop section (243) rests against the side wall of the rotary knob (241). [4] Digital key according to claim 1, characterized by , that the key body (1) is equipped with a misuse protection module to prevent an erroneous output of the first test signal due to an accidental touch of the rotary knob (241) and / or the rocker switch (251), wherein the misuse protection module comprises the following: a request interlock unit (261) arranged in the signal processing module (26) to monitor the first test signal or the second test signal which has a predetermined signal property and to output an interlock signal; or an operating state detection unit comprising a level sensor or accelerometer arranged on the key body (1) to detect and output a status detection signal that characterizes the operating state of the key; or a handle sensing unit comprising a pressure sensor arranged on the key handle (5) and serving to detect and output a pressure sensing signal that characterizes the strength of the pressure exerted by the operator when gripping the key; and a shielding unit (262) arranged in the signal processing module (26) that receives and responds to the locking signal, the status detection signal or the pressure sensing signal, thereby interrupting the response to the first test signal unless it has certain signal characteristics. [5] Digital key according to claim 1, characterized by , that the rotary knob module (24) comprises a screw cap (2419) and a supporting connecting rod (2411), wherein the supporting connecting rod (2411) has at its end furthest from the screw cap (2419) a potentiometer or a Hall sensor (2417) for detecting the rotation angle of the rotary knob (241), wherein the rocker arm module (25) comprises a rocker arm (251) and a rocker arm potentiometer (252) arranged below the rocker arm (251) for detecting the direction and angle of movement of the rocker arm (251), wherein the potentiometer or Hall sensor (2417) and the rocker arm potentiometer (252) are all connected to the signal processing module (26) and output the first test signal to the signal processing module (26). [6] Digital key according to claim 1, characterized by, that the rotary knob (241) comprises a screw cap (2419) and a supporting connecting rod (2411), wherein the supporting connecting rod (2411) has at its end furthest from the screw cap (2419) a rotary potentiometer or a Hall sensor (2417) for detecting the rotation angle of the rotary knob (241), wherein the supporting connecting rod (2411) comprises an upper connecting rod (2412) and a lower connecting rod (2413), wherein the upper connecting rod (2412) has at its end furthest from the screw cap (2419) a sliding groove formed along its axial direction, while one end of the lower connecting rod (2413) engages in the sliding groove and is arranged to be displaceable coaxially with the lower connecting rod (2413), wherein the inner wall of the upper connecting rod (2412) has an annular projection (2414) arranged circumferentially, wherein the outer wall of the lower connecting rod (2413) is provided with several rows of annular grooves (2415) that fit with the annular projection (2414), wherein the annular projection (2414) is provided with a conductive layer (2416) and the several rows of annular grooves (2415) are each provided with a matching contact point, where, when the annular projection (2414) engages with the annular groove (2415), the appropriate contact point establishes an electrical connection. [7] Digital key according to claim 1, characterized by , that the rocker arm module (25) comprises a screw cap (2419) and a rocker arm (251), wherein the end of the rocker arm (251) furthest from the screw cap (2419) is connected to a pivot-tilt mechanism (253), wherein the swivel-tilt mechanism (253) comprises a cross-shaped stationary frame (2530), an X-axis support plate (2531) and a Y-axis support plate (2532) which are perpendicular to each other and are arcuate in shape, wherein a slot-shaped bore (2533) is formed in the respective longitudinal direction on both the X-axis support plate (2531) and the Y-axis support plate (2532), wherein the X-axis support plate (2531) and the Y-axis support plate (2532) are rotatably connected at both ends to an end of the stationary frame (2530) via bearings, and a first potentiometer or a first Hall sensor (2534) is arranged at each end of both the X-axis support plate (2531) and the Y-axis support plate (2532) to to detect their rotation angle, wherein the first potentiometer or the first Hall sensor (2534) is electrically connected to the signal processing module (26), wherein the rocker arm (251) comprises an inner rocker arm (2511) and an outer rocker arm (2512) which are mounted coaxially inside one another, wherein one end of the inner rocker arm (2511) is connected to the screw cap (2419) while the other end is a free end, wherein a locking structure is provided between the inner rocker arm (2511) and the outer rocker arm (2512) to prevent vertical displacement of the two components, wherein a universal joint (2535) is arranged in the middle of the stationary frame (2530), wherein the middle section of the outer rocker arm (2512) is attached to the universal joint (2535), wherein the end of the outer rocker arm (2512) furthest from the screw cap (2419) passes through the slotted bore (2533) on the X-axis support plate (2531) and on the Y-axis support plate (2532) respectively and extends downwards, wherein a stationary base plate (2536) is arranged below the universal joint (2535), wherein a rotary block (2539) is rotatably arranged on the stationary base plate (2536) at the orthogonal projection position of the universal joint (2535) on the stationary base plate (2536), wherein the rotary block (2539) has a detent groove (2537), wherein the shape and size of the detent groove (2537) correspond to those of the free end of the inner rocker arm (2511), wherein a second potentiometer or a second Hall sensor (2538) is arranged on the rotary block (2539) to detect its angle of rotation, wherein the second potentiometer or the second Hall sensor (2538) is electrically connected to the signal processing module (26), wherein when the inner rocker arm (2511) and the outer rocker arm (2512) are in a first relative position, the free end of the inner rocker arm (2511) disengages from the rotary block (2539), while the rocker arm (251) then pivots and drives either the X-axis support plate (2531) or the Y-axis support plate (2532) to move, wherein when the inner rocker arm (2511) and the outer rocker arm (2512) are in a second relative position, the free end of the inner rocker arm (2511) is connected to the rotary block (2539), while by turning the screw cap (2419) on the rocker arm (251) the rotary block (2539) is set in rotation. [8] Digital key according to claim 1, characterized by , that the signal processing module (26) further comprises the following: a data storage unit (263) which is connected to the signal processing unit in terms of data technology and is configured to assign and store the input command type and its operational accuracy according to the first test signal in the respective operating mode; a deviation correction unit (264), which is connected to the data storage unit (263) and the signal processing unit, determines and confirms the current operating mode from the data storage unit (263) based on the first test signal, confirms the input command type and performs a deviation correction of the first test signal according to its corresponding operating accuracy, where the operational accuracy includes the accuracy of the agreement between the rotation angle of the rotary knob (241) and the input command, wherein the deviation correction comprises: dividing the rotation angle of the rotary knob (241) and / or the tilt angle of the rocker arm (251) into a predetermined number of characteristic segments based on the operating accuracy; detecting the current rotation angle of the rotary knob (241) and / or the current tilt angle of the rocker arm (251) and confirming the respective characteristic segment in which it is located; and using the respective characteristic segment as the current rotation angle of the rotary knob (241) and / or the current tilt angle of the rocker arm (251). [9] Digital key according to claim 1, characterized by , that the control panel (2) further comprises a buzzer (22) which is connected to the signal processing module (26) for control purposes, and at least one LED light (23).

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