Wireless smart click torque wrench

Abstract

The utility model is suitable for torque wrench field provides wireless intelligence click torque wrench, including wrench body, wireless communication module, main control, torque sensing element and alarm subassembly, the wrench body is used for exerting torque, by head end, end, slender casing, handle and function mechanism are composed, function mechanism contains ratchet mechanism, transmission structure, unhooking mechanism, energy storage mechanism, locking mechanism, the ratchet mechanism includes ratchet head, head rod and bearing pin, in the utility model, accurate torque control, error is reduced significantly, wireless data transmission realizes accurate control, multiple safety protection, durability is promoted.

Description

Technical Field

[0001] This utility model belongs to the field of torque wrenches, and particularly relates to a wireless intelligent click torque wrench. Background Technology

[0002] In the field of industrial assembly, torque wrenches are the core tools for applying accurate torque to fasteners such as bolts and nuts.

[0003] Traditional mechanical torque wrenches, while inexpensive, have significant drawbacks: target torque setting relies on mechanical mechanisms, adjustments are cumbersome and inaccurate, tightening data cannot be recorded, and quality traceability requirements are difficult to meet. While electronic torque wrenches simplify torque setting, their internal precision electronic components (such as displays and buttons) are susceptible to damage from oil and vibration. They also rely heavily on wired connections, are bulky, and are inconvenient to operate in confined spaces (such as engine compartments) or complex working conditions (such as heavy machinery maintenance). Existing smart wrenches also have safety hazards—they lack a torque adjustment locking structure, making them prone to torque deviation due to accidental activation of the adjustment components. Furthermore, the interfaces lack protection, allowing dust and oil to easily penetrate and shorten the equipment's lifespan. With the development of intelligent manufacturing, higher demands are being placed on torque wrenches in terms of intelligence (data traceability), wireless operation (remote operation), precision (torque control), and durability (environmental adaptability). Therefore, a wireless intelligent click torque wrench is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a wireless intelligent click torque wrench to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The wireless intelligent click torque wrench includes a wrench body, a wireless communication module, a main controller, a torque sensing element, and an alarm component. The wrench body is used to apply torque and consists of a head end, an end end, a slender housing, a handle, and a functional mechanism. The functional mechanism includes a ratchet mechanism, a transmission structure, a disengagement mechanism, an energy storage mechanism, and a locking mechanism. The ratcheting mechanism includes a ratchet head, a head rod, and a bearing pin; The transmission structure includes a transmission rod, a slider, a curved block, and a fourth pin; The unhooking mechanism includes a rocker block, a micro switch, a fastening rocker block, a third pin, a crank, and a second pin; The energy storage mechanism includes an adjusting slide key, a movable slide plate, and a fixed plate; The locking mechanism includes a pressure plate and a fifth pin; The head end has a built-in ratchet head with a tool socket embedded in the center of the ratchet head. The two ends of the slender housing are connected to the head end and the end end respectively, and the handle is integrally formed on the outer side of the end end. The wireless communication module is located within the main control mechanism, which includes a main controller, an OLED screen, and buttons, and is used to wirelessly communicate with external devices to receive target torque commands. The main control unit is located inside the end and is electrically connected to the wireless communication module. It is used to receive and process target torque commands. The torque sensing element is attached to the sensor patch, which is located on the outer wall of the head rod and electrically connected to the main controller. It is used to measure the applied torque in real time and generate a torque signal to be transmitted to the main controller. The alarm component includes a microswitch and an indicator light, which are connected to the main control power supply and are used to issue an alarm signal when the applied torque reaches the target torque.

[0006] In a further technical solution, in the ratchet mechanism, the ratchet head is hinged to the head rod via a bearing pin, the outer wall of the head rod is integrally formed with a protrusion, and the stepped edge of the head rod away from the ratchet head is connected to the transmission rod spline. The slender shell is radially fixed to the head end by a first pin.

[0007] In a further technical solution, in the transmission structure, the end of the transmission rod away from the head rod is hinged to the slider through a fourth pin, the slider slides in cooperation with the curved block, and the curved block is welded to the inner wall of the slender shell; The sensor patch is an annular plane opened on the outer wall of the head rod, and the torque sensing element attached thereon is connected to the main control power supply via a ribbon cable.

[0008] In a further technical solution, the wireless communication module is a Bluetooth module or a Wi-Fi module, integrated on the PCB board of the main control unit, for wireless communication with smartphones, tablets or industrial control equipment, with a communication distance of up to 10 meters, and has a reconnection mechanism after disconnection; the gyroscope module is also integrated on the PCB board of the main control unit, for real-time sensing of its own gesture posture changes and calculating angles.

[0009] Further technical solutions also include an OLED screen, which is embedded in the upper surface of the handle and connected to the main control power supply, to display the target torque value, the real-time measured torque value, and the battery level; The handle also has buttons for manually switching the display interface, clearing data, or setting the target torque; the handle side wall has indicator lights that are connected to the main control power supply and are used to emit status indicator lights.

[0010] In a further technical solution, in the unhooking mechanism, the fastening rocker is fastened to the inner wall of the slender housing by a third pin, the rocker is hinged to the fastening rocker by a second pin, one end of the crank is welded to the fastening rocker, and the other end abuts against the outer wall of the slider. The micro switch is fixed to the inner wall of the slender housing by bolts, and the protrusion at the free end of the rocker can reach the trigger button of the micro switch; When the torque is within the specified range, the microswitch is triggered, producing a click sound, and the indicator light flashes simultaneously.

[0011] In a further technical solution, the main controller is also used to compare the real-time torque value transmitted at the sensor patch with the target torque value. When the real-time torque value reaches or exceeds the target torque value, the unhooking mechanism immediately disengages and the indicator light works. The main controller has a built-in data storage unit that can locally store 50,000 tightening records, including peak torque, trigger time and device number; The end side wall is equipped with a USB interface, which is connected to the main control power supply for charging or exporting stored data. The USB interface is covered with a rubber plug.

[0012] In a further technical solution, in the energy storage mechanism, the fixed plate is welded to the end cavity, the movable slide plate slides axially with the fixed plate, and an energy storage spring is sleeved between the movable slide plate and the fixed plate. The adjusting slide key passes through the end sidewall and is threadedly connected to the movable slide plate. The inner wall of the slender housing is provided with a sliding groove, and the adjusting slide key can slide axially along the sliding groove. In the locking mechanism, the tongue plate is hinged to the fixed plate via a fifth pin, and the free end of the tongue plate can abut against the outer wall of the movable sliding plate. The handle is also equipped with a power switch. Press and hold the middle button to turn the wrench on or off.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides precise torque control and significantly reduces errors: by using strain gauge sensing elements at the sensor patch of the head rod, combined with the spline connection between the head rod and the transmission rod, and the first pin fixing the head end to the slender housing, transmission gaps and assembly errors are eliminated. Compared with traditional mechanical wrenches, the precision is improved, meeting the high-precision assembly requirements of automobiles, aerospace and other industries. This utility model enables precise control through wireless data transmission: the wireless communication module (Bluetooth / Wi-Fi) supports remote torque setting up to 10 meters, tightening records are uploaded; disconnection reconnection and data encryption functions ensure stability and security in multi-equipment scenarios in the workshop; This utility model features multiple safety protections and enhanced durability: the clicking sound of the release mechanism and the indicator light provide dual warnings to prevent over-tightening; the locking mechanism prevents accidental activation of the adjustment slide key; the USB interface rubber plug is dustproof and waterproof; and the reinforced design of key components of the wrench body enables the device to have a service life of 50,000 tightening cycles, far exceeding that of ordinary electronic wrenches.

[0014] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-section of the present invention; Figure 3 This is a three-dimensional explosion structural diagram of the present invention.

[0016] In the diagram: 1. Head end; 2. End end; 3. Ratchet head; 4. Tool socket; 5. Slender housing; 6. First pin; 7. Sensor patch; 8. Head rod; 9. Step edge; 10. Ribbon cable; 11. Drive rod; 12. Bearing pin; 13. Protrusion; 14. Second pin; 15. Rocker block; 16. Micro switch; 17. Fastening rocker block; 18. Third pin; 19. Crank lever; 20. Slider; 21. Fourth pin; 22. Curved surface 23. Block; 24. Fifth pin; 25. Adjustment slide key; 26. Moving slide plate; 27. Fixed plate; 28. Rubber plug; 29. ​​Handle; 20. Tongue depressor; 31. Main control; 32. OLED screen; 33. Sliding groove; 34. Button; 35. Indicator light; 46. USB interface; 47. Spike mechanism; 48. Transmission structure; 49. Unhooking mechanism; 40. Energy storage mechanism; 41. Main control mechanism; 42. Locking mechanism. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] like Figure 1-3 As shown, this utility model embodiment provides a wireless intelligent click torque wrench, including a wrench body, a wireless communication module, a main controller 30, a torque sensing element and an alarm component. The wrench body is used to apply torque and is composed of a head end 1, an end end 2, a slender shell 5, a handle 28 and a functional mechanism. The functional mechanism includes a ratchet mechanism 40, a transmission structure 41, a disengagement mechanism 42, an energy storage mechanism 43 and a locking mechanism 45. The ratcheting mechanism 40 includes a ratchet head 3, a head rod 8, and a bearing pin 12; The transmission structure 41 includes a transmission rod 11, a slider 20, a curved block 22, and a fourth pin 21; The unhooking mechanism 42 includes a rocker block 15, a micro switch 16, a fastening rocker block 17, a third pin 18, a crank 19, and a second pin 14; Energy storage mechanism 43 includes adjustment slide key 24, movable slide plate 25 and fixed plate 26; The locking mechanism 45 includes a pressure plate 29 and a fifth pin 23; The head end 1 has a built-in ratchet head 3, the ratchet head 3 has a tool socket 4 embedded in the center of the center, the two ends of the slender housing 5 are respectively connected to the head end 1 and the end end 2, and the handle 28 is integrally formed on the outside of the end end 2; The wireless communication module is located inside the main control mechanism 44, which includes a main controller 30, an OLED screen 31, and buttons 33, and is used to communicate wirelessly with external devices to receive target torque commands. The main controller 30 is located inside the end 2 and is electrically connected to the wireless communication module to receive and process the target torque command; The torque sensing element is attached to the sensor patch 7, which is located on the outer wall of the head rod 8 and electrically connected to the main controller 30. It is used to measure the applied torque in real time and generate a torque signal to be transmitted to the main controller 30. The alarm component includes a micro switch 16 and an indicator light 34, which are electrically connected to the main controller 30 and are used to issue an alarm signal when the applied torque reaches the target torque.

[0020] Specifically, in the ratchet mechanism 40, the ratchet head 3 is hinged to the head rod 8 via the bearing pin 12, the outer wall of the head rod 8 is integrally formed with a protrusion 13, and the stepped edge 9 of the head rod 8 away from the ratchet head 3 is splinedly connected to the transmission rod 11. The slender shell 5 is radially fixed to the head end 1 by the first pin 6.

[0021] Specifically, in the transmission structure 41, the end of the transmission rod 11 away from the head rod 8 is hinged to the slider 20 through the fourth pin 21, the slider 20 is slidably engaged with the curved block 22, and the curved block 22 is welded to the inner wall of the slender shell 5. The sensor patch 7 is an annular plane opened on the outer wall of the head rod 8, and the torque sensing element attached thereon is electrically connected to the main controller 30 through the ribbon cable 10.

[0022] Specifically, the wireless communication module is a Bluetooth or Wi-Fi module, integrated on the PCB board of the main controller 30, used for wireless communication with smartphones, tablets or industrial control equipment, with a communication distance of up to 10 meters and a reconnection mechanism after disconnection; the gyroscope module is also integrated on the PCB board of the main controller, used to sense changes in its own gesture posture in real time and calculate angles.

[0023] Specifically, it also includes an OLED screen 31, which is embedded in the upper surface of the handle 28 and electrically connected to the main controller 30, for displaying the target torque value, the real-time measured torque value, and the battery level; The handle 28 is also equipped with a button 33 for manually switching the display interface, clearing data, or setting the target torque; the side wall of the handle 28 is equipped with an indicator light 34, which is electrically connected to the main controller 30 and is used to emit status indicator lights.

[0024] Specifically, in the unhooking mechanism 42, the fastening rocker is fastened to the inner wall of the slender housing 5 by the third pin 18, the rocker 15 is hinged to the fastening rocker 17 by the second pin 14, and one end of the crank 19 is welded to the fastening rocker 17, and the other end abuts against the outer wall of the slider 20. The micro switch 16 is fixed to the inner wall of the slender housing 17 by bolts, and the free end protrusion 13 of the rocker block 15 can reach the trigger button of the micro switch 16; When the torque is within the specified range, the micro switch 16 is triggered and makes a clicking sound, and the indicator light 34 flashes simultaneously.

[0025] Specifically, the main controller 30 is also used to compare the real-time torque value transmitted at the sensor patch 7 with the target torque value. When the real-time torque value reaches or exceeds the target torque value, the unhooking mechanism 42 immediately unhooks and the indicator light 34 works. The main controller 30 has a built-in data storage unit that can locally store 50,000 tightening records, including peak torque, trigger time and device number; The end 2 side wall is provided with a USB interface 35, which is electrically connected to the main controller 30 for charging or exporting stored data. The USB interface 35 is covered with a rubber plug 27.

[0026] Specifically, in the energy storage mechanism 43, the fixed plate 26 is welded to the inner cavity of the end 2, the movable slide plate 25 and the fixed plate 26 slide together axially, and an energy storage spring is sleeved between the movable slide plate 25 and the fixed plate 26. The adjusting slide key 24 passes through the side wall of the end 2 and is threadedly connected to the movable slide plate 25. The inner wall of the slender housing 5 is provided with a sliding groove 32, and the adjusting slide key 24 can slide axially along the sliding groove 32. In the locking mechanism 45, the tongue depressor 29 is hinged to the fixed plate 26 via the fifth pin 23, and the free end of the tongue depressor 29 can abut against the outer wall of the movable slide plate 25. The handle 28 is also equipped with a power switch. Press and hold the middle button of button 33 to turn the wrench on or off. The power switch is used to control the power supply to the wrench.

[0027] Working principle and usage process of this utility model: Torque preparation phase: Wireless transmission connection: When wireless data transmission is required, open the dedicated APP for external devices or the host computer that is compatible with the protocol, turn on Bluetooth / Wi-Fi, search for and connect to the wireless module of the wrench to complete wireless communication; Target torque setting: Short press the left and right buttons of button 33 to switch to the "Target Torque Setting" interface. Adjust the value by short pressing the left and right buttons of button 33 until the target torque is displayed on the OLED screen 31. Press the pressure plate 29 at the lower end of the handle 28 to release the lock of the moving slide plate 25. Push the adjustment slide key 24 to slide along the sliding groove 32. Observe the OLED screen 31 at the same time. When the target torque is stably displayed as 30 N·m, release the pressure plate 29. The pressure plate 29 will return to its original position and abut against the moving slide plate 25 to lock the torque value. The green light of indicator light 34 will stay on. Tightening operation stage: Tool fitting: Select the corresponding socket according to the fastener specifications, and insert the socket into the tool socket 4 in the center of the ratchet head 3. The socket and tool socket 4 should be interference fit to ensure that there is no looseness. Tightening by applying force: Hold the handle 28, put the sleeve over the fastener to be tightened, and turn the handle 28 clockwise to apply force; during the application of force, the transmission rod 11 transmits torque, and the strain gauge at the sensor patch 7 senses the torque deformation of the transmission rod 11, generating a weak electrical signal, which is transmitted to the main control 30 through the ribbon cable 10; the main control 30 amplifies, filters, and performs A / D conversion on the signal, calculates the real-time torque value, and dynamically displays it on the OLED screen 31; the main control 30 will also wirelessly upload the real-time monitoring data to the wirelessly connected host computer. Torque Target Compliance Warning Phase: As the real-time torque value gradually approaches the target torque, the main controller 30 controls the indicator light 34 to flash yellow, reminding the user that the target is about to be reached and to slow down the application of force. When the real-time torque value reaches or exceeds the target torque, the slider 20 slides along the curved block 22 to the target position, causing the crank 19 to store energy on the fastening rocker block 17. The transmission rod 11 transmits torque, causing the rocker block 15 to immediately disengage from the fastening rocker block 17 when it reaches its limit, emitting a clicking sound of 80-90dB. At the same time, the free end of the rocker block 15 triggers the micro switch 16, sending an electrical signal to the main controller 30. The main controller 30 actively senses the torque deformation of the strain gauge at the sensor patch 7, detects and records the instantaneous torque value, and the main controller 30 controls the indicator light 34 to change from yellow flashing to green flashing (frequency 2Hz), indicating that the result is qualified. The OLED screen 31 locks the peak torque, providing a double warning to the user to stop applying force. When the torque exceeds the upper or lower limit of the set target torque, the indicator light 34 changes from yellow flashing to red flashing (frequency 2Hz), indicating that the result is unqualified. The main controller 30 will wirelessly upload the result data to the wirelessly connected host computer. After the user hears a clicking sound and the light flashes, immediately stop turning the handle 28 to complete the fastener tightening, the socket disengages from the fastener, and the wrench resets.

[0028] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wireless intelligent click torque wrench, comprising a wrench body, a wireless communication module, a main controller (30), a torque sensing element, and an alarm component, characterized in that: The wrench body is used to apply torque and consists of a head end (1), an end end (2), a slender shell (5), a handle (28) and a functional mechanism, which includes a ratchet mechanism (40), a transmission structure (41), a disengagement mechanism (42), an energy storage mechanism (43), and a locking mechanism (45). The ratcheting mechanism (40) includes a ratchet head (3), a head rod (8), and a bearing pin (12). The transmission structure (41) includes a transmission rod (11), a slider (20), a curved block (22), and a fourth pin (21). The unhooking mechanism (42) includes a rocker (15), a micro switch (16), a fastening rocker (17), a third pin (18), a crank (19), and a second pin (14). The energy storage mechanism (43) includes an adjustment slide key (24), a movable slide plate (25), and a fixed plate (26). The locking mechanism (45) includes a tongue depressor (29) and a fifth pin (23); The head end (1) has a built-in ratchet head (3), the ratchet head (3) has a tool socket (4) embedded in the center, the two ends of the slender housing (5) are respectively connected to the head end (1) and the end end (2), and the handle (28) is integrally formed on the outside of the end end (2); The wireless communication module is located in the main control mechanism (44), which includes a main control (30), an OLED screen (31), and buttons (33). The main control unit (30) is located inside the end unit (2) and is electrically connected to the wireless communication module; The torque sensing element is attached to the sensor patch (7), which is located on the outer wall of the head rod (8) and electrically connected to the main controller (30). The alarm component includes a micro switch (16) and an indicator light (34), and is electrically connected to the main controller (30).

2. The wireless intelligent click torque wrench according to claim 1, characterized in that: In the ratchet mechanism (40), the ratchet head (3) is hinged to the head rod (8) through the bearing pin (12), the outer wall of the head rod (8) is integrally formed with a protrusion (13), and the stepped edge (9) of the head rod (8) away from the ratchet head (3) is splined to the transmission rod (11). The slender shell (5) and the head end (1) are radially fixed by the first pin (6).

3. The wireless intelligent click torque wrench according to claim 1, characterized in that: In the transmission structure (41), the end of the transmission rod (11) away from the head rod (8) is hinged to the slider (20) through the fourth pin (21), the slider (20) is slidably engaged with the curved block (22), and the curved block (22) is welded to the inner wall of the slender shell (5); The sensor patch (7) is an annular plane opened on the outer wall of the head rod (8), and the torque sensing element attached thereon is electrically connected to the main controller (30) through the ribbon cable (10).

4. The wireless intelligent click torque wrench according to claim 1, characterized in that: The wireless communication module is a Bluetooth module or a Wi-Fi module, which is integrated on the PCB board of the main controller (30). The gyroscope module is also integrated on the PCB board of the main controller (30).

5. The wireless intelligent click torque wrench according to claim 1, characterized in that: It also includes an OLED screen (31), which is embedded in the upper surface of the handle (28) and electrically connected to the main controller (30); The handle (28) is also equipped with a button (33); the side wall of the handle (28) is equipped with an indicator light (34), which is electrically connected to the main controller (30).

6. The wireless intelligent click torque wrench according to claim 1, characterized in that: In the unhooking mechanism (42), the fastening rocker (17) is fastened to the inner wall of the slender shell (5) by the third pin (18), the rocker (15) is hinged to the fastening rocker (17) by the second pin (14), one end of the crank (19) is welded to the fastening rocker (17), and the other end abuts against the outer wall of the slider (20); The micro switch (16) is fixed to the inner wall of the slender housing (5) by bolts, and the free end protrusion (13) of the rocker block (15) can reach the trigger button of the micro switch (16).

7. The wireless intelligent click torque wrench according to claim 1, characterized in that: The main controller (30) is also used to compare the real-time torque value transmitted at the sensor patch (7) with the target torque value. When the real-time torque value reaches or exceeds the target torque value, the unhooking mechanism (42) immediately unhooks and the indicator light (34) works. The end (2) side wall is provided with a USB interface (35) which is electrically connected to the main controller (30). The USB interface (35) is covered with a rubber plug (27).

8. The wireless intelligent click torque wrench according to claim 1, characterized in that: In the energy storage mechanism (43), the fixed plate (26) is welded to the inner cavity of the end (2), the movable slide plate (25) and the fixed plate (26) slide together along the axial direction, and an energy storage spring is sleeved between the movable slide plate (25) and the fixed plate (26); The adjusting slide key (24) passes through the side wall of the end (2) and is threadedly connected to the movable slide plate (25). The inner wall of the slender housing (5) is provided with a sliding groove (32), and the adjusting slide key (24) can slide along the axial direction of the sliding groove (32). In the locking mechanism (45), the tongue depressor (29) is hinged to the fixed plate (26) through the fifth pin (23), and the free end of the tongue depressor (29) can abut against the outer wall of the movable sliding plate (25); The handle (28) is also equipped with a power switch, and the power is turned on or off by pressing and holding the middle button of the button (33).

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