Mechanical torque adjusting digital display torque wrench

Abstract

The present application provides a digital display torque wrench with mechanical adjustment, which comprises a body, a wrenching device, a torque breaking device, a special-shaped elastic member, a torque adjusting device and a torque sensing device. The torque adjusting device can be quickly adjusted along the axial direction parallel to the body. The axial position of the supporting member of the torque adjusting device operated by the user relative to the special-shaped elastic member can quickly adjust the torque setting value of the wrench. When the force applied by the wrench is interrupted by the torque breaking device, the wrenching device can produce a mechanical torque trip function to prompt the user that the applied force has reached the torque setting value.

Description

Technical Field

[0001] This invention relates to a torque wrench, and more particularly to a digitally displayed torque wrench with mechanical torque adjustment. Background Technology

[0002] Currently, U.S. Patent Publication No. 2020398410A1, "Torque wrench," discloses a torque wrench. This torque wrench is a type of torque wrench that digitally displays the torque setting value. It includes a body, a drive unit, a release mechanism, a torque assembly, and an adjustment assembly. The torque assembly has a biasing member and a stop member. The adjustment assembly includes a limiting member, an adjusting member, and a sliding assembly. The limiting member abuts against the biasing member, the sliding assembly is fixedly connected to the limiting member, and the adjusting member can adjust the sliding assembly to adjust the relative position of the limiting member abutting against the biasing member. When the torque received by the drive unit exceeds the preset torque setting value of the torque wrench, the release mechanism and the stop member release, thereby indicating to the user that the preset torque setting value for fastening the fastener has been reached.

[0003] However, when the fastener is tightened and the preset torque value is reached, the user's operating inertia does not immediately stop applying force. For those brief few seconds, the user, holding the torque wrench, still applies excessive torque to the fastener, making the tightening torque value not entirely accurate. Furthermore, because the pivot of the release mechanism is located within the base plate, which is rigidly fixed to the main body, the pivot will not collide with the main body when the release mechanism releases; that is, it does not provide the collision-based indication function of a mechanical torque wrench.

[0004] For example, the torque wrench described in German Utility Model Patent No. 202013101035U1, entitled "Torque tool with trigger mechanism," is another type of torque tool. It includes a lever housing, a lever device, a trigger mechanism, and a torque adjustment device. The lever device is located inside the lever housing and has two levers. The two levers engage and disengage via switching edges. When the torque applied to the head exceeds the preset torque setting value of the torque tool, the two levers disengage, thereby indicating to the user that the preset torque setting value for fastening the fastener has been reached. Invention Overview

[0006] Technical issues

[0007] As mentioned earlier, due to the user's operational inertia, excessive torque may still be applied to the fastener when it is tightened and the preset torque value is reached, making the tightening torque value of the fastener not completely accurate. Furthermore, when the two levers jump off each other, the lever near the head is biased by the bow spring and will not collide with the lever housing, meaning there is no collision to indicate the action to the user as with a mechanical torque wrench.

[0008] In view of this, the present invention aims to provide an electronic torque wrench that also has a clear mechanical release function to meet consumer demand.

[0009] Solution to the problem

[0010] Technical solutions

[0011] To address the aforementioned issues, this invention discloses a digitally displayed torque wrench for mechanical torque adjustment, which combines the functions of mechanical torque release and rapid torque adjustment. Furthermore, it can digitally display the adjusted torque setting value on a display screen, thus also possessing the functions of an electronic torque wrench.

[0012] To achieve the above objectives, in one embodiment of the present invention, a digitally displayed torque wrench for mechanically adjusting torque is provided, which includes a body, a levering device, a torque disconnecting device, a shaped spring element, a torque adjusting device, and a torque sensing device. The body has a first end and a second end away from the first end along an axis, which divides the body into a forward side and a reverse side. The body has an inner wall, with a first inner wall on the reverse side and a second inner wall on the forward side. A lever is oscillatingly mounted at the first end of the body. The lever includes a lever, a connecting rod, and an actuating member. The lever is pivotally mounted at the first end and has a lever end exposed outside the body and an end end extending into the body. The connecting rod has a first connecting end and a second connecting end opposite to it. The first connecting end is pivotally mounted at the end. The actuating member is pivotally mounted on the body and can move relative to the body between a first pivot position and a second pivot position, so that the actuating member can be linked with the second connecting end. A torque disconnecting device is pivotally mounted inside the body and can selectively abut against the end of the lever away from the lever end, and the torque disconnecting device can abut against the actuating member. A shaped elastic member includes a fixed end. Furthermore, the fixed end of the irregular elastic component is fixed to the torque disconnect device; the torque adjustment device is disposed on the body and can move along the axis parallel to the body to generate a relative sliding relationship. The torque adjustment device has a support member for the end of the irregular elastic component away from the fixed end to abut against. The torque adjustment device can be operated by the user to adjust the axial position of the support member relative to the irregular elastic component. The torque sensing device is disposed on the body relative to the torque adjustment device. The torque sensing device can sense the displacement change of the torque adjustment device and display a torque setting value. When the actuator is in the first pivot position, the actuator can transmit the reaction force of the lever to the irregular elastic component. When the torque disconnect device is interrupted, the force transmission of the digital display torque wrench is interrupted, and when the actuator swings to the second pivot position, the actuator can drive the connecting rod to generate displacement relative to the body, and at the same time cause the lever to hit the first inner wall, and the actuator hits the second inner wall.

[0013] In another embodiment of the present invention, the end of the lever has a first impact surface, and there is a first impact space between the first impact surface and the first inner wall. The actuator has a second impact surface, and there is a second impact space between the second impact surface and the second inner wall. When the torque disconnection device interrupts the application of force by the digitally displayed torque wrench, the first impact surface enters the first impact space and impacts the first inner wall, and the second impact surface enters the second impact space and impacts the second inner wall.

[0014] In another embodiment of the present invention, when the digital display torque wrench is in its natural state, the axis of the connecting rod has a first angle with the axis, the second impact surface has an impact angle with the axis, and the second connecting end of the connecting rod is located on the opposite side; when the torque disconnection device interrupts the force application of the digital display torque wrench, the axis of the connecting rod has a second angle with the axis, the first angle is greater than the second angle, the first angle is greater than the impact angle, and the first connecting end of the connecting rod can cross the axis of the body and both the first and second connecting ends are located on the opposite side of the body.

[0015] In another embodiment of the present invention, the actuator has an actuating end at the end away from the connecting rod, the torque disconnection device includes a disconnection member, and the lever device is pivotally mounted with a pressing member opposite to the lever end. One side of the pressing member is connected to the actuating end, and the other side is abutted and connected to the disconnection member. When the applied force of the digital torque wrench continues to rise until it equals the torque setting value, the disconnection member can disengage from the pressing member and interrupt the applied force of the digital torque wrench. When the digital torque wrench returns to its natural state, the disconnection member and the pressing member can automatically return to their original abutting state. The pressing member has a first abutting part, and the disconnection member has a second abutting part on the side different from the irregular elastic member, which abuts against the first abutting part.

[0016] In another embodiment of the present invention, a reset member is provided between the actuating end of the actuator and the pressing member. The reset member normally keeps the pressing member and the disconnecting member in contact. A biasing member is provided between the lever and the inner wall of the body. The biasing member provides the lever with a force to restore it to its natural state. The lever device also includes two clamping plates. The second connecting end of the connecting rod is pivotally disposed on one side of the two clamping plates. The pressing member is pivotally disposed on the other side of the two clamping plates. The actuator is pivotally disposed between the two clamping plates. The actuating end of the actuator is provided with a first limiting part. The pressing member has a second limiting part disposed opposite to it. The first limiting part and the second limiting part can abut against each other to limit the swing amplitude of the pressing member.

[0017] In another embodiment of the present invention, the torque adjustment device includes a movable member, a transmission gear, and an adjusting member. The movable member is slidably disposed on the body along the axial direction, and a support member is rotatably disposed on the movable member. The movable member has a first tooth disposed along a direction parallel to the axial direction. The transmission gear has a second tooth that meshes with the first tooth. The adjusting member is connected to the transmission gear so that the user can rotate the adjusting member to drive the movable member to generate a linear displacement relative to the body and adjust the position of the support member relative to the irregular elastic member. The adjusting member is rotatably disposed on the body along a rotation axis direction perpendicular to the axial direction, and the second tooth is disposed around the rotation axis. The body has an accommodating space, and a guide portion is provided in the accommodating space. The movable member is slidably disposed on the body along the guide portion. The transmission gear has a first rotation radius, and the second tooth is disposed along the first rotation radius. The adjusting member has a second rotation radius, which is greater than the first rotation radius. The transmission gear and the adjusting member are coaxially disposed.

[0018] In another embodiment of the present invention, the torque sensing device includes a sensing element and a display. The display is electrically connected to the sensing element. The sensing element has a movable part connected to a moving element and moves with it, so that the sensing element senses the displacement change of the moving element and generates a torque signal. The display shows the torque setting value based on the torque signal.

[0019] In another embodiment of the present invention, the torque sensing device includes a sensing element, a sensed element, and a display. The display is electrically connected to the sensing element. The sensed element is disposed on the movable element and moves with it. The sensing element can generate a torque signal by non-contactly sensing the displacement change of the sensed element. The display shows the torque setting value based on the torque signal.

[0020] In another embodiment of the present invention, the body has a sensing hole communicating with the accommodating space. The sensing element senses the displacement change of the moving element through the sensing hole. The torque sensing device also includes a housing and a circuit board, a power supply and a counter disposed on the housing. The display, the sensing element, the power supply and the counter are all electrically connected to the circuit board. The counter can send a counting signal and display it on the display based on the number of times the disconnecting element and the pressing element are disengaged. The lever device has a driving head, the lever end is disposed on the driving head and the driving head is detachably disposed on the lever. The torque sensing device also includes a wireless transmission unit that can wirelessly transmit the torque signal and the counting signal to the moving device. The body also includes a handle sleeved on the second end.

[0021] To achieve the above objectives, in another embodiment of the present invention, a digitally displayed torque wrench for mechanically adjusting torque is provided, which includes a body, a levering device, a torque disconnecting device, a shaped spring element, a torque adjusting device, and a torque sensing device. The body has a first end and a second end away from the first end along an axis, which divides the body into a forward side and a reverse side. A lever is oscillatingly disposed at the first end of the body, and the lever has a lever end exposed outside the body. A torque disconnection device is pivotally disposed within the body and can selectively abut against the end of the lever away from the lever end. A shaped elastic member includes a fixed end, and the fixed end of the shaped elastic member is fixed to the torque disconnection device. The end of the shaped elastic member other than the fixed end has a shaped support section with a curved contact area. The shaped elastic member is inclined within the body relative to the axis of the body, and the axis of the shaped elastic member has an inclination angle with the axis. The fixed end of the shaped elastic member is located on the reverse side of the body, and the shaped support section of the shaped elastic member can cross the axis of the body. Located on the forward side of the main body; the torque adjustment device is disposed on the main body and can move along the axis parallel to the main body to generate a relative sliding relationship. The torque adjustment device has a support member for the curved contact area of ​​the irregular support section to abut against. The torque adjustment device can be operated by the user to adjust the axial position of the support member relative to the irregular support section, thereby changing the tilt angle of the irregular elastic member relative to the main body; and the torque sensing device is disposed on the main body relative to the torque adjustment device. The torque sensing device can sense the displacement change of the torque adjustment device and display a torque setting value. The torque setting value is the smallest when the support member of the torque adjustment device abuts against the irregular elastic member away from the fixed end, and the torque setting value is the largest when the support member of the torque adjustment device abuts against the irregular elastic member close to the fixed end.

[0022] In another embodiment of the present invention, the curved contact area is thinner at both ends and thicker in the middle, so that the torque / distance curve of the digital torque wrench appears to be nearly linear.

[0023] In another embodiment of the present invention, the torque disconnection device includes a disconnection member, and a pressing member is pivotally mounted on the opposite end of the lever. The pressing member is abutted against the disconnection member. When the applied force of the digital torque wrench continuously increases until it equals the torque setting value, the disconnection member can disengage from the pressing member and interrupt the applied force of the digital torque wrench. When the digital torque wrench returns to its natural state, the disconnection member and the pressing member can automatically return to their original abutting state. The pressing member has a first abutting portion, and the disconnection member has a second abutting portion on the side opposite to the irregular elastic member, which abuts against the first abutting portion. When the axial position of the support member relative to the irregular support section is adjusted, the contact area between the first abutting portion and the second abutting portion can be changed.

[0024] In another embodiment of the present invention, a reset member is provided between the lever device and the pressing member. The reset member normally keeps the pressing member and the disconnecting member in contact. A biasing member is provided between the lever device and an inner wall of the body. The biasing member provides a force for the lever device to return to its natural state. A first limiting part is provided on the lever device away from the lever end. The pressing member has a second limiting part disposed opposite to it. The first limiting part and the second limiting part can abut against each other to limit the swing amplitude of the pressing member.

[0025] In another embodiment of the present invention, the torque adjustment device includes a movable member, a transmission gear, and an adjusting member. The movable member is slidably disposed on the body along the axial direction, and a support member is rotatably disposed on the movable member. The movable member has a first tooth disposed along a direction parallel to the axial direction, the transmission gear has a second tooth meshing with the first tooth, and the adjusting member is connected to the transmission gear so that the user can rotate the adjusting member to drive the movable member to generate a linear displacement relative to the body and adjust the position of the support member relative to the irregular support section. The adjusting member is rotatably disposed on the body along a rotation axis direction perpendicular to the axial direction, and the second tooth is disposed around the rotation axis. The body has an accommodating space, and a guide portion is provided in the accommodating space. The movable member is slidably disposed on the body along the guide portion. The transmission gear has a first rotation radius, and the second tooth is disposed along the first rotation radius. The adjusting member has a second rotation radius, which is greater than the first rotation radius. The transmission gear and the adjusting member are coaxially disposed.

[0026] In another embodiment of the present invention, the torque sensing device includes a sensing element and a display. The display is electrically connected to the sensing element. The sensing element has a movable part connected to a moving element and moves with it, so that the sensing element senses the displacement change of the moving element and generates a torque signal. The display shows the torque setting value based on the torque signal.

[0027] In another embodiment of the present invention, the torque sensing device includes a sensing element, a sensed element, and a display. The display is electrically connected to the sensing element. The sensed element is disposed on the movable element and moves with it. The sensing element can generate a torque signal by non-contactly sensing the displacement change of the sensed element. The display shows the torque setting value based on the torque signal.

[0028] In another embodiment of the present invention, the body has a sensing hole communicating with the accommodating space. The sensing element senses the displacement change of the moving element through the hole. The torque sensing device also includes a housing and a circuit board, a power supply and a counter disposed on the housing. The display, the sensing element, the power supply and the counter are all electrically connected to the circuit board. The counter can send a counting signal and display it on the display based on the number of times the disconnecting element and the pressing element are disengaged. The lever device has a lever and a driving head. The lever end is disposed on the driving head and the driving head is detachably disposed on the lever. The torque sensing device also includes a wireless transmission unit that can wirelessly transmit the torque signal and the counting signal to the moving device. The body also includes a handle sleeved on the second end.

[0029] To achieve the above objectives, in another embodiment of the present invention, a digitally displayed torque wrench for mechanically adjusting torque is provided, comprising a body, a levering device, a torque disconnection device, a shaped elastic member, a torque adjustment device, and a torque sensing device. The body forms a first end and a second end away from the first end along an axis, the axis dividing the body into a forward side and a reverse side; the levering device is oscillatingly disposed at the first end of the body, the levering device comprising a levering member and a pressing member, the levering member being pivotally disposed at the first end, the levering member having a levering end exposed outside the body and an end extending into the body, the pressing member being pivotally disposed at the end; the torque disconnection device is pivotally disposed within the body and can selectively abut against the pressing member; the shaped elastic member includes a fixed end, and the shaped elastic member... The fixed end of the force-bearing component is fixed to the torque disconnecting device. The irregularly shaped elastic component has an irregularly shaped support section at one end, opposite to the fixed end. This support section has a curved contact area. The irregularly shaped elastic component is inclined within the body relative to its axis, with its axis of inclination at an angle to the axis. The fixed end of the irregularly shaped elastic component is located on the opposite side of the body, while its irregularly shaped support section can extend beyond the axis of the body and be located on the forward side. The torque adjustment device is located within the body and can be adjusted along an axis parallel to the body. The torque adjustment device has a bearing member for the curved contact area of ​​the irregular support section to abut against, and the torque adjustment device allows the user to adjust the axial position of the bearing member relative to the irregular support section, thereby changing the tilt angle of the irregular elastic member relative to the body. A torque sensing device is located on the body relative to the torque adjustment device. The torque sensing device can sense the displacement change of the torque adjustment device and display a torque setting value. The torque setting value is the smallest when the bearing member of the torque adjustment device abuts against the irregular elastic member away from the fixed end, and the torque setting value is the largest when the bearing member of the torque adjustment device abuts against the irregular elastic member close to the fixed end. When the applied force of the digital torque wrench continues to rise until it equals the torque setting value, the torque disconnection device can disengage from the pressing member and interrupt the applied force of the digital torque wrench. When the digital torque wrench returns to its natural state, the torque disconnection device and the pressing member can automatically return to their original contact state.

[0030] In another embodiment of the present invention, the curved contact area has a shape that is thinner at both ends and thicker in the middle, so that the torque / distance curve of the digital torque wrench is nearly linear. A first limiting part is provided on one side of the end, and a second limiting part is provided opposite to the pressing member. The first limiting part and the second limiting part can abut against each other to limit the swing amplitude of the pressing member. A reset member is provided between the end and the pressing member. The reset member normally keeps the pressing member and the torque disconnecting device in contact. A biasing member is provided between the lever and the inner wall of the body. The biasing member provides a force for the lever to return to its natural state.

[0031] Therefore, this invention has the function of quick release of a mechanical torque wrench, and can also quickly adjust the torque setting value. It also has the function of digital display of an electronic torque wrench, which can meet the needs of consumers.

[0032] Beneficial effects of the invention

[0033] Brief description of the accompanying drawings Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the appearance of the first embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention;

[0035] Figure 2 This is an exploded view of the first embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention;

[0036] Figure 3 This is a schematic diagram of the irregularly shaped elastic component structure of the first embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention;

[0037] Figure 4 For along Figure 1 A schematic diagram of a partial cross-section taken from section line 4-4;

[0038] Figure 5A This is a cross-sectional schematic diagram of the first embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention, showing that the support member is in the lower limit position and the torque setting value of the digital display torque wrench for mechanical torque adjustment is set to the minimum.

[0039] Figure 5B for Figure 5A A magnified view of a portion of the image;

[0040] Figure 6A To continue Figure 5A This is a schematic diagram of the turning action of the first embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention;

[0041] Figure 6B for Figure 6A A magnified view of a portion of the image;

[0042] Figure 7 This is a side cross-sectional view of the first embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention, showing that the rotation of the adjusting member drives the linear displacement of the moving member, thereby adjusting the supporting member to the upper limit position;

[0043] Figure 8 This is another cross-sectional schematic diagram of the first embodiment of the mechanically adjustable digital display torque wrench of the present invention, showing that the support member is in the upper limit position and the torque setting value of the mechanically adjustable digital display torque wrench is set to the maximum.

[0044] Figure 9 To continue Figure 8 This is a schematic diagram of the turning action of the first embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention, in which the lever and the actuator simultaneously strike the first inner wall and the second inner wall respectively.

[0045] Figure 10 This is a torque / distance curve diagram comparing the present invention with that of a conventional straight rod (elastic rod);

[0046] Figure 11 This is a partial cross-sectional schematic diagram of the second embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention;

[0047] Figure 12 This is a cross-sectional schematic diagram of the third embodiment of the digital display torque wrench for mechanical torque adjustment of the present invention.

[0048] Explanation of reference numerals in the attached figures

[0049] 100. Digital display torque wrench; L1. Axis; L2. Rotation axis; 1. Body; 10. First end; 11. Second end; 1a. Grip; 12. Accommodation space; 121. Inner wall; 121a. First inner wall; 121b. Second inner wall; 13. Guide part; 14. First pivot hole; 15. Second pivot hole; 16. Third pivot hole; 17. Through hole; 18. Sensing hole; 19. Through hole; 2. Actuating device; 2a. Actuating end; 2b. Connecting part; 20. Actuating element; 201. First connecting end; 20a. Drive head; 202. Second connecting end; 203. Pivot hole; 204. End; 2 05. Biased component; 206. Receiving hole; 207. Through hole; 208. First limiting part; 204a. First impact surface; 21. Connecting rod; 211. First connecting end; 212. Second connecting end; 211a. Through hole; 210. Axis line; 22. Clamping plate; 221. Connecting pin; 222. Connecting pin; 223. Through hole; 224. Through hole; 225. Through hole; 23. Actuating component; 231. Pivot hole; 232. Actuating end; 233. Receiving groove; 234. First limiting part; 235. Second impact surface; 24. Pressing component; 241. Through hole; 242. Second limiting part; 243. First abutment part; 244. Connecting pin; 25. First fixing pin; 26. Second fixing pin; 27. Reset component; 3. Torque disconnecting device; 31. Disconnecting component; 311. Pivot hole; 312. Second abutment part; 32. Third fixing pin; 4. Irregular elastic component; 40. Axis centerline; 41. Body section; 42. Fixed end; 43. Irregular support section; 431. Curved contact area; 5. Torque adjusting device; 51. Moving component; 511. Pivot hole; 512. Insertion hole; 513. Moving groove; 514. First tooth; 52. Support component; 521. Connecting pin; 53. Transmission gear; 531. Second tooth; 532. Rotating shaft; 5 4. Adjusting component; 541. Screw hole; 55. Fixing screw; 6. Torque sensing device; 61. Housing; 611. Mounting part; 612. Perforation; 613. Movable cover; 62. Circuit board; 621. Wireless transmission unit; 63. Power supply; 64. Sensing element; 641. Movable part; 65. Display; 66. Counter; 661. Trigger pin; 67. Sensed element; R1. First rotation radius; R2. Second rotation radius; LF. Forward side; LR. Reverse side; S1. First impact space; S2. Second impact space; A. Tilt angle; B. Impact angle; θ1. First angle; θ2. Second angle.

[0050] The best embodiment of the invention

[0051] The best embodiment of the present invention

[0052] Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is not intended to limit the technical principles of the present invention to the specific disclosed embodiments, but the scope of the present invention is limited only by the scope of protection of the claims, which cover alternatives, modifications and equivalents.

[0053] Please see Figures 1 to 10 As shown, the present invention is a first embodiment of a mechanically adjustable digital display torque wrench 100, which includes a body 1, a levering device 2, a torque disconnecting device 3, a shaped elastic element 4, a torque adjusting device 5, and a torque sensing device 6. The torque adjusting device 5 can be operated by the user to quickly adjust a preset torque setting value, and the torque setting value is digitally displayed by the torque sensing device 6.

[0054] The body 1 has a first end 10 and a second end 11 away from the first end 10 along an axis L1, which divides the body 10 into a forward side LF and a reverse side LR. The body 1 has a receiving space 12. In this embodiment of the invention, the body 1 is a flat rectangular hollow tube, and a guide portion 13 is provided in the receiving space 12. In addition, the body 1 has a first pivot hole 14, a second pivot hole 15 and a third pivot hole 16 sequentially provided from the first end 10 toward the second end 11, and a through hole 17 and a sensing hole 18 are provided adjacent to the second end 11. The first pivot hole 14, the second pivot hole 15, the third pivot hole 16, the through hole 17 and the sensing hole 18 are respectively connected to the receiving space 12.

[0055] A lever device 2 is oscillatingly mounted on the first end 10 of the body 1. The lever device 2 includes a lever member 20, a connecting rod 21, two clamping plates 22, an actuating member 23, and a pressing member 24. The lever device 2 has a lever end 2a exposed on the body 1 for levering a fastener. In this embodiment, the lever device 2 further includes a drive head 20a, with the lever end 2a disposed on the drive head 20a. The drive head 20a is detachably mounted on the lever member 20. For example, the lever member 20 has a groove-shaped first connecting end 201, and the drive head 20a has a protruding second connecting end 202, so that the first connecting end 201 and the second connecting end 202 engage in a concave-convex fit, allowing the user to select a specific drive head 20a for different operational needs.

[0056] The lever 20 is pivotally mounted on the body 1 and capable of generating a relative pivoting relationship. The lever 20 has a connecting portion 2b, which extends into the first end 10, and is located at the other end of the body 1. The lever 20 is pivotally connected to the first end 10 of the body 1 via a first fixing pin 25 passing through a first pivot hole 14 in the body 1 and a pivot connection hole 203. The connecting portion 2b has an end 204 located away from the pivot end 2a. A biasing member 205 is provided between the connecting portion 2b and an inner wall 121 of the body 1. One end of the biasing member 205 abuts against the inner wall 121 of the body 1, and the other end abuts against a receiving hole 206 on the side of the lever 20. The biasing member 205 provides a force to restore the lever 20 to its natural state. The inner wall 121 has a first inner wall 121a on the reverse side LR and a second inner wall 121b on the forward side LF. The biasing member 205 abuts against the first inner wall 121a and the receiving hole 206. In addition, the end 204 of the lever member 20 has a first impact surface 204a on one side, and a first impact space S1 is formed between the first impact surface 204a and the first inner wall 121a.

[0057] The connecting rod 21 has a first connecting end 211 and a second connecting end 212 disposed opposite to it. In this embodiment of the invention, the first connecting end 211 of the connecting rod 21 passes through the through hole 207 of the end 204 and the through hole 211a of the connecting rod 21 via a connecting pin 213, so that the first connecting end 211 of the connecting rod 21 is pivotally connected to the end 204.

[0058] The two clamping plates 22 are clamped to the two sides of the actuator 23 by connecting pins 221 and 222 passing through the through holes 223 and 224 of the two clamping plates 22 respectively. The second connecting end 212 of the connecting rod 21 is pivotally mounted to one side of the two clamping plates 22 by the second connecting pin 221.

[0059] The actuator 23 and the two clamping plates 22 are connected by a second fixing pin 26 through a second pivot hole 15, through holes 225 in the two clamping plates 22, and through a pivot hole 231 in the actuator 23. This allows the actuator 23 to pivotally connect with the body 1 and the two clamping plates 22, enabling the actuator 23 to move relative to the body 1 between a first pivot position and a second pivot position. This allows the actuator 23 to be linked with the second connecting end 212; that is, when the lever 20 swings, the connecting rod 21 can move the two clamping plates 22, causing the two clamping plates 22 to swing in conjunction with the actuator 23. Furthermore, the end of the actuator 23 furthest from the connecting rod 21 has an actuating end 232, which has a receiving groove 233 and a first limiting part 234. Additionally, one side of the actuator 23 has a second impact surface 235, and a second impact space S2 exists between the second impact surface 235 and the second inner wall 121b.

[0060] The pressing member 24 is pivotally mounted on the end of the lever device 2 opposite to the lever end 2a. In this embodiment of the invention, the pressing member 24 has a through hole 241 and is pivotally mounted on the other side of the two clamping plates 22 via a third connecting pin 222, and is in contact with the actuating end 232 of the actuator 23. The pressing member 24 has a second limiting part 242 on the side facing the actuator 23, and a first abutting part 243 on the other side. The first limiting part 234 and the second limiting part 242 can abut against each other to limit the swing amplitude of the pressing member 24.

[0061] A torque disconnection device 3 is disposed within the accommodating space 12 of the main body 1 and can selectively abut against the end of the lever 2 away from the lever end 2a, that is, the torque disconnection device 3 can abut against the lever 2. In this embodiment of the invention, the torque disconnection device 3 abuts against the pressing member 24 of the lever 2. The torque disconnection device 3 includes a disconnection member 31. The disconnection member 31 is pivotally mounted on the main body 1 and abuts against the pressing member 24. When the applied force of the digital torque wrench 100 continues to rise until it equals the torque setting value, the disconnection member 31 can disengage from the pressing member 24 and interrupt the applied force of the digital torque wrench 100. When the digital torque wrench 100 returns to its natural state, the disconnection member 31 and the pressing member 24 can automatically return to their original abutment state. In this embodiment of the invention, the disconnecting member 31 passes through a third pivot hole 16 and a pivot hole 311 of the disconnecting member 31 via a third fixing pin 32, so that the disconnecting member 31 is pivotally mounted on the body 1 and can swing between a first position and a second position. The disconnecting member 31 is different from the irregular elastic member 4 and has a second abutting portion 312 relative to the pressing member 24, for abutting against the first abutting portion 243. Furthermore, the actuating device 2 also includes a resetting member 27, one end of which abuts against the groove 233 of the actuating member 23 of the actuating device 2, and the other end of which abuts against the side of the pressing member 24 opposite to the disconnecting member 31, so that the pressing member 24 and the disconnecting member 31 are normally kept in abutting state.

[0062] The irregularly shaped elastic member 4 is inclined within the body 1 relative to the axis L1. The axis 40 of the irregularly shaped elastic member 4 has an inclination angle A with the axis L1, and one end of the irregularly shaped elastic member 4 is fixed to the disconnector 31 of the torque disconnector 3. In this embodiment of the invention, the irregularly shaped elastic member 4 is a long rod, with a body 41 along the axis 40. One end of the body 41 has a fixed end 42, and the other end, different from the fixed end 42, has an irregularly shaped support section 43. The irregularly shaped support section 43 has a curved contact area 431. The fixed end 42 is located on the opposite side LR of the body 1 and is fixed to the disconnector 31 of the torque disconnector 3 on the side different from the pressing member 24. The irregularly shaped support section 43 of the irregularly shaped elastic member 4 can cross the axis L1 of the body 1 and be located on the forward side LF of the body 1. Figure 3As shown, the curved contact area 431 of the irregular support section 43 has a shape that is thinner at both ends and thicker in the middle.

[0063] A torque adjustment device 5 is disposed on the main body 1 and is movable along an axis L1 parallel to the main body 1 to create a relative sliding relationship. The torque adjustment device 5 includes a moving member 51, a bearing member 52, a transmission gear 53, and an adjusting member 54. The moving member 51 is generally frame-shaped and is slidably disposed on the main body 1 along the axis L1. The moving member 51 is disposed within the accommodating space 12 of the main body 1 and is slidably disposed on the main body 1 along the guide portion 13. The outer contour of the moving member 51 generally conforms to the shape of the guide portion 13. The bearing member 52 is a roller rotatably disposed inside one end of the moving member 51 so that the curved contact area 431 of the irregular support section 43 of the irregular elastic member 4 abuts against it. The torque adjustment device 5 allows the user to quickly adjust the axial position of the bearing member 52 relative to the irregular support section 43, thereby changing the tilt angle A of the irregular elastic member 4 relative to the main body 1. In this embodiment of the invention, the support member 52 is pivotally mounted on the pivot hole 511 of the movable member 51 via a connecting pin 521, and the support member 52 and the irregular elastic member 4 are in rolling contact. When the axial position of the support member 52 relative to the irregular support section 43 is adjusted, the contact area between the aforementioned first abutment portion 243 and the second abutment portion 312 can be changed.

[0064] Additionally, the movable member 51 has an insertion hole 512 on one side of the connecting pin 521 and a moving groove 513 on the other side. A first tooth 514 is provided on one side of the inner edge of the moving groove 513. The first tooth 514 is arranged in a straight strip along a direction parallel to the axis L1. The irregular support section 43 of the irregular elastic member 4 passes through the movable member 51, causing the supporting member 52 to contact and abut against the irregular support section 43. Thus, when the movable member 51 moves, it drives the supporting member 52 to move synchronously, thereby changing the supporting position of the supporting member 52 against the irregular support section 43 of the irregular elastic member 4.

[0065] It should be noted that the irregularly shaped elastic element 4 bears the torque exerted by the digital torque wrench 100. The irregularly shaped elastic element 4 can be considered as a lever arm, the actuating end 2a of the lever device 2 is the point of force application, and the bearing element 52 is the fulcrum of force. By adjusting the length of the lever arm between the bearing element 52 and the actuating end 2a of the lever device 2, the torque setting value set by the digital torque wrench 100 can be determined. In other words, the torque setting value is minimum when the bearing element 52 of the torque adjustment device 5 is against the irregularly shaped elastic element 4 away from the fixed end 42, and maximum when the bearing element 52 of the torque adjustment device 5 is against the irregularly shaped elastic element 4 close to the fixed end 42.

[0066] Furthermore, when the torque setting value is minimum, the irregularly shaped elastic member 4 is prone to bending deformation at the position between the support member 52 and the fixed end 42. When the torque setting value is maximum, the irregularly shaped elastic member 4 is less prone to bending deformation at the position between the support member 52 and the fixed end 42. Simultaneously, when the torque setting value is minimum, the tilt angle A of the irregularly shaped elastic member 4 is minimum, and the tilt angle of the disconnecting member 31 relative to the body 1 is small. Therefore, the radial (the radial direction refers to the direction perpendicular to the axis L1) component of the force exerted by the support member 52 on the irregularly shaped elastic member 4 is also small. Consequently, the contact area between the first abutting part 243 of the pressing member 24 and the second abutting part 312 of the disconnecting member 31 is correspondingly smaller. When the torque setting value is maximum, the tilt angle A of the irregularly shaped elastic member 4 is maximum, and the tilt angle of the disconnecting member 31 relative to the body 1 is large. The radial force exerted by the abutment 52 on the irregular elastic member 4 is relatively large. Consequently, the contact area between the first abutment portion 243 of the pressing member 24 and the second abutment portion 312 of the disconnecting member 31 is relatively large. This increases the force with which the disconnecting member 31 engages with the pressing member 24, meaning that a higher torque is required to disengage them. As a result, the torque setting value of the digital torque wrench 100 has an upward adjustment effect, which means that the upper limit of the torque setting value can be extended, thereby obtaining a wider torque setting value range.

[0067] The transmission gear 53 has a first rotation radius R1 and a second tooth 531 arranged along the first rotation radius R1. The second tooth 531 meshes with the first tooth 514 of the moving member 51, and the number of teeth in the second tooth 531 is less than the number of teeth in the first tooth 514. In addition, the second tooth 531 of the transmission gear 53 is arranged about a rotation axis L2, which is perpendicular to the axis L1, and the transmission gear 53 has a rotating shaft 532 arranged along the rotation axis L2.

[0068] An adjusting member 54 is rotatably mounted on the outside of the main body 1 along the rotation axis L2 and can be rotated by the user. In this embodiment of the invention, the adjusting member 54 is a circular turntable. The adjusting member 54 has a second rotation radius R2, which is larger than the first rotation radius R1. The adjusting member 54 and the rotation shaft 532 of the transmission gear 53 are coaxially arranged, so that the adjusting member 54 is connected to the transmission gear 53. In this embodiment of the invention, a fixing screw 55 passes through the rotation shaft 532 of the transmission gear 53 and the screw hole 541 of the adjusting member 54 to lock them together. In this way, the user can rotate the adjusting member 54 to synchronously drive the transmission gear 53, and the meshing relationship between the second tooth 531 and the first tooth 514 can drive the moving member 51 to produce a linear displacement relative to the main body 1 and easily adjust the position of the supporting member 52 relative to the irregular elastic member 41 and the irregular support section 43.

[0069] It should be noted that because the second rotation radius R2 of the adjusting component 54 is greater than the first rotation radius R1, the user can drive the transmission gear 53 with less force, so that the transmission gear 53 drives the moving component 51 to slide, and there is no spring resistance during the adjustment process. In this way, the effect of adjusting the upper or lower limit of the torque setting value can be achieved quickly.

[0070] A torque sensing device 6 is disposed on the main body 1 relative to the torque adjustment device 5. The torque sensing device 6 can sense the adjustment of the torque adjustment device 5 and display the torque setting value so that the user can intuitively understand the setting status of the torque setting value and facilitate operation. In this embodiment, the torque sensing device 6 includes a housing 61, a circuit board 62, a power supply 63, a sensing element 64, a display 65, and a counter 66. The circuit board 62, the power supply 63, the sensing element 64, and the counter 66 are all disposed on the housing 61, and the power supply 63, the sensing element 64, the display 65, and the counter 66 are all electrically connected to the circuit board 62.

[0071] The outer casing 61 and the adjusting member 54 are located on the same side of the main body 1, and one end of the outer casing 61 has a mounting portion 611 away from the lever end 2a, on which the adjusting member 54 is supported. The shaft 532 of the aforementioned transmission gear 53 passes through the through hole 17 and the through hole 612 of the mounting portion 611, so that the outer casing 61 is also fixed to the main body 1 by the fixing screw 55. The other end of the outer casing 61 has a movable cover 613, through which the power supply 63 inside the outer casing 61 can be freely removed for replacement by opening the movable cover 613.

[0072] The circuit board 62, the sensor 64, and the display 65 are located between the mounting portion 611 and the movable cover 613, with the display 65 exposed outside the housing 61. The sensor 64 corresponds to the sensing hole 18. The sensor 64 has a movable portion 641, which is inserted into the insertion hole 512 of the movable member 51 through the sensing hole 18 and moves with it. This allows the sensor 64 to sense changes in the displacement of the movable member 51 and generate a torque signal. The display 65 displays the torque setting value based on the torque signal. In this embodiment, the sensor 64 is a variable resistor.

[0073] A counter 66 is positioned at the corresponding pressure member 24 of the torque disconnect device 3. The counter 66 has a trigger foot 661 that extends into the through hole 19 of the body 1 and abuts against one side of the pressure member 24. This allows the counter 66 to send a counting signal based on the number of times the disconnect member 31 and the pressure member 24 disconnect, and display it on the display 65. This allows the user to easily understand how many times the digitally displayed torque wrench 100 has exceeded the set torque value, thus accurately tightening the fastener to the predetermined torque value. For ease of operation, the torque sensing device 6 also includes a count zeroing button and other function keys. The circuit board 62 further includes a wireless transmission unit 621, which can wirelessly transmit the torque signal and counting signal to a mobile device (such as a smartphone or laptop) for simultaneous display or storage of the torque setting value or the number of disconnections on the mobile device.

[0074] In addition, the body 1 of the present invention also includes a gripping member 1a, which is sleeved on the second end 11 of the body 1 for gripping operation.

[0075] Please see Figure 4 and Figure 5A , Figure 5B As shown. Figure 5A The support member 52 is in the lower limit position, that is, the support member 52 is supported at the very end of the irregular support section 43 of the irregular elastic member 4 and is farthest from the lever end 2a. Thus, the torque setting value of the digital torque wrench 100 is set to the minimum. Simultaneously, the disconnect member 31 is also in the first position, so that the torque adjustment device 5 allows the user to adjust the position of the support member 52 relative to the curved contact area 431 of the irregular support section 43, thereby achieving a rapid adjustment from the lower torque limit to the upper torque limit. And as... Figure 5B As shown, when the torque wrench 100 is in its natural state, the axis 210 of the connecting rod 21 has a first angle θ1 with the axis L1, the second impact surface 235 has an impact angle B with the axis L1, and the second connecting end 212 of the connecting rod 21 is located on the opposite side LR. The first angle θ1 is greater than the impact angle B.

[0076] Then as Figure 6A and Figure 6BAs shown, when the digital torque wrench 100 is operated and the actuator 23 is in the first pivot position, the actuator 23 can transmit the reaction force of the operating device 2 to the shaped elastic member 4, causing the portion of the shaped elastic member 4 between the fixed end 42 and the support member 52 to bend and deform. When the force applied by the digital torque wrench 100 exceeds the torque setting value, the disconnector 31 can disengage from the pressing member 24, interrupting the force transmission of the digital torque wrench 100, and causing the actuator 23 to swing from the first pivot position to the second pivot position. When the actuator 23 is activated, it can move the connecting rod 21 to generate displacement relative to the body 1, causing the actuator 23 and the lever 20 to simultaneously impact the first inner wall 121a and the second inner wall 121b of the body 1, respectively. During the impact, the first impact surface 204a of the lever 20 enters the first impact space S1 and impacts the first inner wall 121a, while the second impact surface 235 of the actuator 23 enters the second impact space S2 and impacts the second inner wall 121b. This provides the user with a clear mechanical torque release sensation when turning the lever, thereby prompting the user to stop applying force. Furthermore, since the connecting rod 21 and the actuator 23 are connected between the lever 20 and the disconnector 31, when the disconnector 31 can disengage from the pressing member 24, the connecting rod 21 can instantly convert the pushing force originally received from the lever 20 into a pulling force that holds the lever 20 in place. This pulling force delays the time it takes for the lever 20 to impact the first inner wall 121a. Since the user may still apply force due to inertia when the wrench reaches its default torque value, if the wrench 20 immediately impacts the first inner wall 121a, the wrench 20 will form a rigid contact with the body 1, causing the user's force to be transmitted to the wrench 20 through the body 1, and then applying excessive torque to the fastener, resulting in excessive torque value of the fastener and failing to reach the accurate value. Therefore, through the linkage effect of the linkage 21 of the present invention, the inertial force applied by the user when the fastener reaches its default torque value can be buffered, avoiding the application of excessive torque to the fastener, thereby achieving a more accurate wrenching operation.

[0077] In addition, such as Figure 6B As shown, when the torque disconnect device 3 interrupts the application of force by the digitally displayed torque wrench 100, the axis 210 of the connecting rod 21 has a second angle θ2 with the axis L1. The first angle θ1 is greater than the second angle θ2, and the first connecting end 211 of the connecting rod 21 can cross the axis L1 of the body 1 and both the first connecting end 211 and the second connecting end 212 are located on the opposite side LR of the body 1. As mentioned above, when the disconnecting member 31 is in the second position, the irregular elastic member 4 can enable the torque disconnect device 3 to provide the force to restore the wrench 2 to its original state. When the digitally displayed torque wrench 100 is turned at a torque setting value lower than the torque setting value, the pressing member 24 can restore the original contact state with the disconnecting member 31 again.

[0078] like Figure 7 and Figure 8As shown, the user rotates the adjusting member 54 to adjust the torque setting value. The rotation of the adjusting member 54 drives the transmission gear 53 to rotate, thereby causing the moving member 51 to linearly displace relative to the body 1 along the axis L1 towards the disconnecting member 31. This quickly adjusts the supporting member 52 from the lower limit position to the upper limit position, that is, the position where the supporting member 52 is supported on the irregular support section 43 of the irregular elastic member 4, moving from the very end to about the middle. At this position, the digital display shows that the torque setting value of the torque wrench 100 is set to the maximum. With this stroke adjustment, because the second rotation radius R2 is greater than the first rotation radius R1, the user can quickly complete the adjustment action within 1 to 2 turns of the adjusting member 54. It is quite fast and convenient to use. At this time, the disconnecting member 31 is in the first position, and the adjusting member 54 can be rotated by the user to drive the moving member 51 to adjust the position of the supporting member 52 relative to the irregular support section 43. This enables the function of quickly and easily adjusting from the lower torque limit to the upper torque limit.

[0079] Then as Figure 9 As shown, when the digital torque wrench 100 is operated, since the torque setting is set to the maximum, the bending deformation of the portion of the irregular elastic member 4 between the fixed end 42 and the support member 52 caused by the reaction force of the operating device 2 is less than when the torque setting is set to the minimum. When the force applied by the digital torque wrench 100 exceeds the setting value, as mentioned above, the disconnecting member 31 can disengage from the pressing member 24, interrupting the force transmission of the digital torque wrench 100. This causes the operating member 20 and the actuating member 23 to simultaneously impact the first inner wall 121a and the second inner wall 121b, respectively, thereby providing the user with a clear mechanical torque disengagement feel and prompting the user to stop applying force. It can also buffer the inertial force applied by the user when the fastener is turned to the default torque value, avoiding excessive torque on the fastener, thereby achieving more precise turning operations. Of course, with the disconnector 31 in the second position, the irregularly shaped elastic element 4 allows the torque disconnector 3 to provide the force for the lever device 2 to return to its original state. Then, if it needs to return to... Figure 4 and Figure 5A When the position is adjusted as described above, the present invention can also achieve the function of quickly and easily adjusting from the upper limit of torque to the lower limit of torque.

[0080] Please cooperate. Figure 2 , Figure 3 and Figure 10 As shown, the curved contact area 431 of the irregular support section 43 of the irregular elastic member 4 is abutted by the support member 52, and when the support member 52 abuts at different positions on the curved contact area 431, the irregular elastic member 4 can generate different deformation amounts, which are determined by the reaction force of the actuating device 2. Furthermore, as Figure 10The diagram shows the torque / distance curves of the present invention and existing straight rod (elastic rod) types. The distance in the torque / distance curve refers to the position of the support member 52 relative to the irregular support section 43, ranging from approximately 0mm to 37.5mm. Within this distance, the torque / distance curve of the present invention appears almost linear, while the prior art shows an arc. Therefore, the present invention, through the shape of the curved contact area 431, enables the torque / distance curve of the digitally displayed torque wrench 100 to appear almost linear, which is beneficial for equidistant digital point sampling, thereby improving the overall torque accuracy of the displayed torque wrench 100 and achieving high precision.

[0081] Please see Figure 11 The diagram shows a second embodiment of the present invention. The similarities to the first embodiment will not be repeated here, but the difference lies in that the torque sensing device 6 includes a sensed element 67, which is disposed on the movable member 51 and moves with it. The sensing element 64 can non-contactly sense the displacement change of the sensed element 67 to generate a torque signal, and the corresponding torque setting value is displayed on the display 65. The sensing method between the sensing element 64 and the sensed element 67 can be optical sensing or magnetic field sensing. For optical sensing, the sensing element 64 can include light emitting and light receiving functions, while the sensed element 67 includes a grating structure. For magnetic field sensing, the sensing element 64 is a magnetic sensor, and the sensed element 67 is a magnet.

[0082] Please see Figure 12 The diagram shows the third embodiment of the present invention. The similarities to the first embodiment are not repeated here. The difference lies in that, in the third embodiment, the actuating device 2 consists of an actuating member 20 and a pressing member 24. The actuating member 20 is pivotally mounted on the first end 10 of the body 1. The actuating member 20 has an actuating end 2a exposed outside the body 1 and an end 204 extending into the body 1a. A first limiting portion 208 is provided on one side of the end 204 of the actuating member 20. The pressing member 24 is pivotally mounted on the end 204 via a connecting pin 244. The disconnecting member 31 of the torque disconnecting device 3 is pivotally mounted inside the body 1 and can selectively abut against the pressing member 24. Furthermore, the pressing member 24 has a second limiting portion 242, which abuts against the first limiting portion 208 to limit the swing amplitude of the pressing member 24. A reset member 27 is provided between the end 204 and the pressing member 24. The reset member 27 normally keeps the pressing member 24 in contact with the disconnecting member 31 of the torque disconnecting device 3. Therefore, this embodiment also allows for rapid adjustment along the axis L1 of the body 1 via the torque adjustment device 5, thereby adjusting the axial position of the bearing member 52 relative to the irregular support section 43, achieving rapid torque adjustment. This embodiment has a simple structure, which facilitates miniaturization and is suitable for scenarios with small torque ranges.

[0083] In summary, the present invention has the following advantages:

[0084] 1. The present invention enables the wrench to have a mechanical torque release function through the linkage relationship between the lever 20, the connecting rod 21 and the actuator 23. When the force is interrupted by the torque disconnection device 3, the lever 20 and the actuator 23 can impact the inner wall 121 of the body 1, providing the user with a clear mechanical torque release feel, prompting the user to stop applying force. At the same time, it can buffer the inertial force applied by the user when the fastener is turned to the default torque value, avoiding excessive torque on the fastener, thereby achieving more precise turning operation.

[0085] 2. The irregular elastic member 4 of the present invention is inclinedly disposed in the body 1. When the inclination angle A of the irregular elastic member 4 increases, the contact degree between the torque disconnection device 3 and the lever device 2 can be increased, thereby increasing the upper limit of the torque setting value and reaching the range of increasing the torque setting value, so as to be applicable to high torque working scenarios.

[0086] 3. The torque adjustment device of the present invention can quickly adjust the displacement along the axis L1 of the body 1, thereby changing the axial position of the support member 52 relative to the irregular elastic member 4, so as to achieve the purpose of adjusting the upper or lower limit of the torque setting value. The adjustment method of the present invention is fast and simple, saving time and effort, and the adjusted torque setting value can be immediately displayed by the display 65, providing the user with the current torque setting value at the first time.

[0087] The embodiments described above are merely illustrative of the present invention and are not intended to limit the scope of the invention. All modifications or alterations made without departing from the spirit of the present invention are within the scope of the patent applications of this invention.

Claims

1. A digitally displayed torque wrench for mechanically adjusting torque, characterized in that, It includes: A body having a first end and a second end away from the first end along an axis dividing the body into a forward side and a reverse side, the body having an inner wall having a first inner wall on the reverse side and a second inner wall on the forward side. A lever device is swayable at a first end of a body. The lever device includes a lever, a connecting rod, and an actuating member. The lever is pivotally mounted at the first end and has a lever end exposed outside the body and an end extending into the body. The connecting rod has a first connecting end and a second connecting end disposed opposite to it. The first connecting end is pivotally mounted at the end. The actuating member is pivotally mounted on the body and is capable of moving relative to the body between a first pivot position and a second pivot position, so that the actuating member can be linked with the second connecting end. A torque disconnection device is pivotally mounted in the body and can selectively abut against the end of the lever that is away from the lever end, and the torque disconnection device can abut against the actuator. An irregularly shaped elastic element, the irregularly shaped elastic element including a fixed end, and the fixed end of the irregularly shaped elastic element is fixed to the torque disconnection device; A torque adjustment device is disposed on the body and is movable along an axis parallel to the body to create a relative sliding relationship. The torque adjustment device has a support member for the end of the irregularly shaped elastic member away from the fixed end to abut against. The torque adjustment device can be operated by a user to adjust the axial position of the support member relative to the irregularly shaped elastic member; and A torque sensing device is disposed on the body relative to the torque adjustment device. The torque sensing device can sense the displacement change of the torque adjustment device and display a torque setting value. When the actuator is in the first pivot position, the actuator can transmit the reaction force of the lever to the irregular elastic member. When the torque disconnection device is interrupted, the force transmission of the digital display torque wrench is interrupted, and when the actuator swings to the second pivot position, the actuator can drive the connecting rod to generate displacement relative to the body, and at the same time cause the lever to hit the first inner wall and the actuator to hit the second inner wall.

2. The digital display torque wrench for mechanical torque adjustment as described in claim 1, characterized in that, The actuator has a first impact surface on one end, and a first impact space between the first impact surface and the first inner wall. The actuator has a second impact surface on one side, and a second impact space between the second impact surface and the second inner wall. When the torque disconnection device interrupts the force applied by the digital torque wrench, the first impact surface enters the first impact space and impacts the first inner wall, and the second impact surface enters the second impact space and impacts the second inner wall.

3. The digital display torque wrench for mechanical torque adjustment as described in claim 2, characterized in that, When the digital torque wrench is in its natural state, the axis of the connecting rod has a first angle with the axis, the second impact surface has an impact angle with the axis, and the second connecting end of the connecting rod is located on the opposite side. When the torque disconnection device interrupts the application of force by the digital torque wrench, the axis of the connecting rod has a second angle with the axis, the first angle is greater than the second angle, the first angle is greater than the impact angle, and the first connecting end of the connecting rod can cross the axis of the body and both the first and second connecting ends are located on the opposite side of the body.

4. The digital display torque wrench for mechanical torque adjustment as described in claim 3, characterized in that, The actuator has an actuating end at the end away from the connecting rod. The torque disconnecting device includes a disconnecting member. The lever is pivotally mounted with a pressing member opposite to the actuating end. One side of the pressing member is connected to the actuating end, and the other side is abutted against the disconnecting member. When the applied force of the digital torque wrench continues to rise until it equals the torque setting value, the disconnecting member can disengage from the pressing member and interrupt the applied force of the digital torque wrench. When the digital torque wrench returns to its natural state, the disconnecting member and the pressing member can automatically return to their original abutting state. The pressing member has a first abutting part, and the disconnecting member has a second abutting part on the side opposite to the shaped elastic member, which abuts against the first abutting part.

5. The digital display torque wrench for mechanical torque adjustment as described in claim 4, characterized in that, The actuator has a reset member between its actuating end and the pressing member. The reset member normally keeps the pressing member and the disconnecting member in contact. The lever has a biasing member between its actuating member and the inner wall of the body. The biasing member provides the lever with a force to restore the lever to its natural state. The lever also includes two clamping plates. The second connecting end of the linkage is pivotally mounted on one side of the two clamping plates. The pressing member is pivotally mounted on the other side of the two clamping plates. The actuator is pivotally mounted between the two clamping plates. The actuating end of the actuator has a first limiting part. The pressing member has a second limiting part that is disposed opposite to it. The first limiting part and the second limiting part can abut against each other to limit the swing amplitude of the pressing member.

6. The digital display torque wrench for mechanical torque adjustment as described in claim 5, characterized in that, The torque adjustment device includes a movable member, a transmission gear, and an adjusting member. The movable member is slidably disposed on the body along the axial direction. The support member is rotatably disposed on the movable member. The movable member has a first tooth disposed along a direction parallel to the axial direction. The transmission gear has a second tooth that meshes with the first tooth. The adjusting member is connected to the transmission gear so that the user can rotate the adjusting member to drive the movable member to generate a linear displacement relative to the body and adjust the position of the support member relative to the irregular elastic member. The adjusting member is rotatably disposed on the body along a rotation axis direction perpendicular to the axial direction. The second tooth is disposed around the rotation axis. The body has an accommodating space with a guide portion inside. The movable member slides on the body along the guide portion. The transmission gear has a first rotation radius. The second tooth is disposed along the first rotation radius. The adjusting member has a second rotation radius that is larger than the first rotation radius. The transmission gear and the adjusting member are coaxially disposed.

7. The digital display torque wrench for mechanical torque adjustment as described in claim 6, characterized in that, The torque sensing device includes a sensing element and a display. The display is electrically connected to the sensing element. The sensing element has a movable part that is connected to the moving part and moves with it, so that the sensing element senses the displacement change of the moving part and generates a torque signal. The display shows the torque setting value based on the torque signal.

8. The digital display torque wrench for mechanical torque adjustment as described in claim 6, characterized in that, The torque sensing device includes a sensing element, a sensed element, and a display. The display is electrically connected to the sensing element. The sensed element is disposed on the moving element and moves with it. The sensing element can sense the displacement change of the sensed element in a non-contact manner and generate a torque signal. The display shows the torque setting value based on the torque signal.

9. The digital display torque wrench for mechanical torque adjustment as described in claim 7 or 8, characterized in that, The main body has a sensing hole communicating with the accommodating space. The sensing element senses the displacement change of the moving member through the sensing hole. The torque sensing device also includes a housing and a circuit board, a power supply, and a counter disposed on the housing. The display, the sensing element, the power supply, and the counter are all electrically connected to the circuit board. The counter can send a counting signal based on the number of times the disconnecting member and the pressing member disengage, and display it on the display. The lever device has a driving head, the lever end is disposed on the driving head, and the driving head is detachably disposed on the lever member. The torque sensing device also includes a wireless transmission unit, which can wirelessly transmit the torque signal and the counting signal to the mobile device. The main body also includes a grip sleeve disposed on the second end.

10. A digitally displayed torque wrench for mechanically adjusting torque, characterized in that, It includes: A body having a first end and a second end away from the first end along an axis, the axis dividing the body into a forward side and a reverse side; A lever mechanism is oscillatingly disposed at the first end of the body, the lever mechanism having a lever end exposed outside the body. A torque disconnection device is pivotally mounted in the body and can selectively abut against the end of the lever device away from the lever end; A non-standard elastic member includes a fixed end, which is fixed to the torque disconnecting device. The non-standard elastic member has a non-standard support section at one end other than the fixed end. The non-standard support section has a curved contact area. The non-standard elastic member is inclined to the body relative to the axis of the body. The axis of the non-standard elastic member has an inclination angle with the axis. The fixed end of the non-standard elastic member is located on the opposite side of the body. The non-standard support section of the non-standard elastic member can cross the axis of the body and be located on the forward side of the body. A torque adjustment device is disposed on the body and is movable along an axis parallel to the body to create a relative sliding relationship. The torque adjustment device has a support member for the curved contact area of ​​the irregular support section to abut against. The torque adjustment device can be operated by a user to adjust the axial position of the support member relative to the irregular support section, thereby changing the tilt angle of the irregular elastic member relative to the body. A torque sensing device is disposed on the body relative to the torque adjusting device. The torque sensing device can sense the displacement change of the torque adjusting device and display a torque setting value. The torque setting value is the smallest when the bearing member of the torque adjusting device abuts against the irregular elastic member away from the fixed end, and the torque setting value is the largest when the bearing member of the torque adjusting device abuts against the irregular elastic member close to the fixed end.

11. The digital display torque wrench for mechanical torque adjustment as described in claim 10, characterized in that, The curved contact area has a shape that is thinner at both ends and thicker in the middle, making the torque / distance curve of the torque wrench displayed on the digital display appear as a near-linear shape. The distance refers to the position of the support member relative to the irregular support section.

12. The digital display torque wrench for mechanical torque adjustment as described in claim 11, characterized in that, The torque disconnection device includes a disconnection member. A pressing member is pivotally mounted on the lever end opposite to the lever end. The pressing member is abutted against the disconnection member. When the applied force of the digital torque wrench continuously increases until it equals the torque setting value, the disconnection member can disengage from the pressing member and interrupt the applied force of the digital torque wrench. When the digital torque wrench returns to its natural state, the disconnection member and the pressing member can automatically return to their original abutting state. The pressing member has a first abutting portion, and the disconnection member has a second abutting portion on the side opposite to the shaped elastic member, which abuts against the first abutting portion. When the axial position of the support member relative to the shaped support section is adjusted, the contact area between the first abutting portion and the second abutting portion can be changed.

13. The digital display torque wrench for mechanical torque adjustment as described in claim 12, characterized in that, The lever device and the pressing member have a reset member, which normally keeps the pressing member and the disconnecting member in contact. The lever device and an inner wall of the body have a biasing member, which provides the lever device with a force to return to its natural state. The lever device has a first limiting part away from the lever end, and the pressing member has a second limiting part disposed opposite to it. The first limiting part and the second limiting part can abut against each other to limit the swing amplitude of the pressing member.

14. The digital display torque wrench for mechanical torque adjustment as described in claim 13, characterized in that, The torque adjustment device includes a movable member, a transmission gear, and an adjusting member. The movable member is slidably disposed on the body along the axial direction. The support member is rotatably disposed on the movable member. The movable member has a first tooth disposed along a direction parallel to the axial direction. The transmission gear has a second tooth that meshes with the first tooth. The adjusting member is connected to the transmission gear so that the user can rotate the adjusting member to drive the movable member to generate a linear displacement relative to the body and adjust the position of the support member relative to the irregular support section. The adjusting member is rotatably disposed on the body along a rotation axis direction perpendicular to the axial direction. The second tooth is disposed around the rotation axis. The body has an accommodating space with a guide portion inside. The movable member slides on the body along the guide portion. The transmission gear has a first rotation radius. The second tooth is disposed along the first rotation radius. The adjusting member has a second rotation radius that is larger than the first rotation radius. The transmission gear and the adjusting member are coaxially disposed.

15. The digital display torque wrench for mechanical torque adjustment as described in claim 14, characterized in that, The torque sensing device includes a sensing element and a display. The display is electrically connected to the sensing element. The sensing element has a movable part that is connected to the moving part and moves with it, so that the sensing element senses the displacement change of the moving part and generates a torque signal. The display shows the torque setting value based on the torque signal.

16. The digital display torque wrench for mechanical torque adjustment as described in claim 14, characterized in that, The torque sensing device includes a sensing element, a sensed element, and a display. The display is electrically connected to the sensing element. The sensed element is disposed on the moving element and moves with it. The sensing element can sense the displacement change of the sensed element in a non-contact manner and generate a torque signal. The display shows the torque setting value based on the torque signal.

17. The digital display torque wrench for mechanical torque adjustment as described in claim 15 or 16, characterized in that, The main body has a sensing hole communicating with the accommodating space. The sensing element senses the displacement change of the moving member through the sensing hole. The torque sensing device also includes a housing and a circuit board, a power supply, and a counter disposed on the housing. The display, the sensing element, the power supply, and the counter are all electrically connected to the circuit board. The counter can send a counting signal based on the number of times the disconnecting member and the pressing member disengage, and display it on the display. The lever device has a lever and a driving head. The lever end is disposed on the driving head, and the driving head is detachably disposed on the lever. The torque sensing device also includes a wireless transmission unit that can wirelessly transmit the torque signal and the counting signal to the mobile device. The main body also includes a grip sleeve disposed on the second end.

18. A digitally displayed torque wrench for mechanically adjusting torque, characterized in that, It includes: A body having a first end and a second end away from the first end along an axis, the axis dividing the body into a forward side and a reverse side; A lever device is oscillatingly disposed at the first end of the body. The lever device consists of a lever member and a pressing member. The lever member is pivotally disposed at the first end. The lever member has a lever end exposed outside the body and a end end extending into the body. The pressing member is pivotally disposed at the end end. A torque disconnection device is pivotally mounted in the body and can selectively abut against the pressing member; A non-standard elastic component includes a fixed end, which is fixed to the torque disconnection device. The non-standard elastic component has a non-standard support section at one end other than the fixed end. The non-standard support section has a curved contact area. The non-standard elastic component is inclined to the body relative to the axis of the body. The axis of the non-standard elastic component has an inclination angle with the axis. The fixed end of the non-standard elastic component is located on the opposite side of the body. The non-standard support section of the non-standard elastic component can cross the axis of the body and be located on the forward side of the body. A torque adjustment device is disposed on the body and is movable along an axis parallel to the body to create a relative sliding relationship. The torque adjustment device has a support member for the curved contact area of ​​the irregular support section to abut against. The torque adjustment device can be operated by a user to adjust the axial position of the support member relative to the irregular support section, thereby changing the tilt angle of the irregular elastic member relative to the body. A torque sensing device is disposed on the body relative to the torque adjusting device. The torque sensing device can sense the displacement change of the torque adjusting device and display a torque setting value. The torque setting value is the smallest when the bearing member of the torque adjusting device abuts against the irregular elastic member away from the fixed end, and the torque setting value is the largest when the bearing member of the torque adjusting device abuts against the irregular elastic member close to the fixed end. When the applied force of the digital torque wrench continues to rise until it equals the torque setting value, the torque disconnection device can disengage from the pressing member and interrupt the applied force of the digital torque wrench. When the digital torque wrench returns to its natural state, the torque disconnection device and the pressing member can automatically return to their original contact state.

19. The digital display torque wrench for mechanical torque adjustment as described in claim 18, characterized in that, The curved contact area has a shape that is thinner at both ends and thicker in the middle, making the torque / distance curve of the digital torque wrench appear almost linear. The distance refers to the position of the support member relative to the irregular support section. A first limiting part is provided on one side of the end, and the pressing member has a second limiting part arranged opposite to it. The first limiting part and the second limiting part can abut against each other to limit the swing amplitude of the pressing member. A reset member is provided between the end and the pressing member. The reset member normally keeps the pressing member in contact with the torque disconnecting device. A biasing member is provided between the lever and the inner wall of the body. The biasing member provides the lever with a force to return to its natural state.

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