Digital display torque wrench capable of mechanically adjusting torque

Abstract

The invention provides a digital display torque wrench capable of adjusting torque in a mechanical mode. The digital display torque wrench comprises a body, a wrenching device, a torque interruption device, a special-shaped elastic piece, a torque adjusting device, a locking device and a torque sensing device. A sliding piece of the torsion adjusting device can slide in the direction parallel to the axis of the body, then the torsion set value of the wrench is adjusted, the locking device is assembled between the sliding piece and the body, the locking device can be switched between a releasing position and a locking position, and the locking position is located between the releasing position and the locking position. A user can easily adjust the axial position of the bearing part of the sliding part relative to the special-shaped elastic part, so that the torsion sensing device can sense the displacement change of the sliding part to display a torsion set value, and at the locking position, the locking device applies force to the sliding part so as to increase the frictional resistance between the sliding part and the body.

Description

A digital display torque wrench that mechanically adjusts torque Technical Field

[0001] The present invention relates to a torque wrench, in particular to a digital display torque wrench that adjusts torque mechanically. Background Art

[0002] According to U.S. Invention Patent Publication No. 2020 / 0398410A1, "Torque wrench" discloses a torque wrench. The torque wrench is a torque wrench that displays the torque setting value digitally, and includes a body, a drive unit, a trip mechanism, a torque assembly, and an adjustment assembly. The torque assembly has a biasing member and a push member, and the adjustment assembly includes a limit member, an adjustment member, and a sliding assembly. The limit member abuts against the biasing member, and the sliding assembly is fixed to the limit member and slidably arranged in the body, and the adjustment member can adjust the sliding assembly to adjust the relative position of the limit member against the biasing member. When the torque borne by the drive unit is greater than the preset torque setting value of the torque wrench, the trip mechanism and the push member trip, thereby prompting the user that the torque setting value of the locking fastener has reached the preset value. Technical issues

[0003] However, when the torque wrench is being rotated, if the torque applied to the driving portion has not yet reached the preset torque value, the reaction force transmitted from the driving portion to the biasing member causes the member to become flexible. Simultaneously, this reaction force acts on the sliding assembly via the biasing member and the stop member, causing the sliding assembly to micro-move and resulting in a loose structure. Consequently, the torque wrench's torque performance during use becomes inaccurate and distorted.

[0004] Another example of a torque tool is the torque wrench, described in German Utility Patent No. 202013101035U1 as a "Torque tool with trigger mechanism." This includes a lever housing, a lever assembly, a trigger mechanism, and a torque adjustment mechanism. The lever assembly is housed within the lever housing and comprises two levers that engage by a switching edge. When the torque applied to the head exceeds the preset torque setting of the torque tool, the two levers engage, alerting the user that the preset torque setting for locking the fastener has been reached.

[0005] Similar to the shortcomings of the aforementioned patent, when the torque tool is being turned, if the torque borne by the head has not yet reached the preset torque value, the reaction force transmitted from the head to the flexible rod causes it to become flexible. At the same time, the reaction force also acts on the support member slidably arranged on the guide member through the flexible rod, causing the support member to move slightly relative to the guide member, resulting in a loose structure. In this way, during the use of the torque tool, the torque performance is still not accurate and is distorted.

[0006] To meet consumer demand, the present invention provides a torque wrench that mechanically adjusts torque and has a high-precision, undistorted digital display. Technical Solutions

[0007] To solve the above problems, the present invention discloses a digital display torque wrench that mechanically adjusts torque. When a locking device is used to lock the body and the sliding member, the structure can be made more compact so that the torque is not distorted during the wrench application process.

[0008] To achieve the above-mentioned purpose, the present invention provides, in one embodiment, a digital display torque wrench for mechanically adjusting torque, which includes a main body, a pulling device, a torque interrupting device, a special-shaped elastic member, a torque adjusting device, a locking device, and a torque sensing device. The main body forms a first end and a second end away from the first end along an axis; the pulling device is swingably arranged at the first end of the main body, and the pulling device includes a pulling end exposed from the main body; the torque interrupting device is pivotally arranged in the main body and can selectively abut against an end of the pulling device away from the pulling end; the special-shaped elastic member includes a fixed end and a special-shaped supporting section different from the fixed end, and the fixed end of the special-shaped elastic member is fixed to the torque interrupting device; the torque adjusting device is assembled with the main body, and the torque adjusting device has a sliding member, which is slidingly arranged in the main body along a direction parallel to the axis, and the sliding member has a The supporting portion is for the special-shaped supporting section of the special-shaped elastic member to rest against; the locking device is assembled between the sliding member and the main body, and the locking device can switch between a release position and a locking position. In the release position, the user can easily adjust the axial position of the supporting portion of the sliding member relative to the special-shaped elastic member. In the locking position, the locking device applies friction resistance between the sliding member and the main body, so that the sliding member cannot move relative to the main body; the torque sensing device is arranged at the position of the main body relative to the torque adjustment device, and the torque sensing device can sense the displacement change of the sliding member and display a torque setting value.

[0009] Furthermore, the pulling end has a rotation axis, and during the pulling operation, the main body can rotate along the rotation axis; in the release position, the user can perform a rotation operation along an operating axis parallel to the rotation axis and perpendicular to the axis to adjust the position of the sliding member on the axis; the locking device is connected to the torque adjustment device along the operating axis; in the locked position, the locking device applies the friction resistance to the sliding member along the direction of the operating axis, so that the locking device clamps the sliding member and the main body.

[0010] Furthermore, the torque adjustment device includes a first force transmission member capable of driving the sliding member to produce a displacement movement; the locking device includes a shaft extending through the main body and the sliding member along the operating axis, an operating handle pivotally arranged at one end of the shaft, and a second force transmission member arranged on the shaft, the operating handle can drive the shaft to produce a displacement movement along the operating axis direction, the first force transmission member and the second force transmission member are arranged on the shaft, in the locking position, the operating handle can pull the shaft along the operating axis direction, driving the first force transmission member and the second force transmission member to press toward each other respectively, so as to clamp the main body and the sliding member, in the release position, the operating handle is relaxed relative to the shaft, so that the user can rotate the first force transmission member and thereby drive the sliding member to slide linearly relative to the main body.

[0011] Furthermore, the pulling device has an adjusting device, which can adjust the abutment degree between the pulling device and the torque interrupting device.

[0012] Furthermore, the main body forms a top side and an oppositely arranged bottom side along the direction of the operating axis, and the shaft is exposed from the top side of the main body for the pivoting of the operating handle. The first force transmission member has a first connecting end and a first pressing portion, and the second force transmission member has a second connecting end and a second pressing portion arranged in the sliding member. The second connecting end is movably connected to the first connecting end. In the locked position, the first pressing portion presses against the main body, and the second pressing portion presses against the sliding member.

[0013] Furthermore, the first force transmission member has a force receiving portion away from the first pressing portion, the operating handle has an eccentric cam, and the locking device includes a force transmission component, which is abutted between the eccentric cam and the force receiving portion. When in the locked position, the eccentric cam applies force to the force transmission component, so that the force transmission component transmits force to the first force transmission member; the sliding member has a first tooth portion arranged along a direction parallel to the axis, and the second force transmission member is provided with a second tooth portion arranged around the operating axis between the second connecting end and the second pressing portion, and the second tooth portion is engaged with the first tooth portion. The first force transmission member is rotatably provided on the main body and the shaft along the operating axis and links the second force transmission member, so that the user rotates the first force transmission member to drive the second force transmission member, so that the second force transmission member drives the sliding member to move relative to the main body. The first force transmission member is provided with a rotating end away from the first connection end, and the rotating end has a first rotation radius. The second force transmission member has a second rotation radius. The second tooth portion is arranged along the second rotation radius, and the first rotation radius is larger than the second rotation radius; the first connection end and the second connection end are connected together in a concave-convex matching manner.

[0014] Furthermore, it also includes a biasing device, which is arranged between the main body and the sliding member, and applies elastic force to the sliding member along a direction perpendicular to the axis and the operating axis; the biasing device includes a spring sheet, each of the two ends of the spring sheet has a hooking portion, and each of the hooking portions is respectively hooked and connected to the side of the sliding member.

[0015] Furthermore, the pulling device includes a pulling piece and a pressing piece, the pulling piece is pivoted on the first end, the pulling piece has an end extending into the body, the pressing piece is pivoted on the end, the torque interrupting device selectively abuts against the pressing piece, the special-shaped supporting section has a curved contact area for the supporting portion to abut, and the special-shaped elastic piece is inclined relative to the axis of the body and is arranged in the body; when the supporting portion of the torque adjusting device abuts against the position where the curved contact area of ​​the special-shaped elastic piece is far away from the fixed end, the torque setting value is the smallest, and when the supporting portion of the torque adjusting device abuts against the position where the curved contact area of ​​the special-shaped elastic piece is close to the fixed end, the torque setting value is the smallest. The fixed value is the maximum; when the force applied by the digital display torque wrench continues to rise until it is equal to the torque setting value, the torque interruption device can jump out of the pressure piece and interrupt the force applied by the digital display torque wrench; when the digital display torque wrench returns to its natural state, the torque interruption device and the pressure piece can automatically return to their original contact state; the axis divides the body into a forward side and a reverse side, the axis of the special-shaped elastic piece has an inclination angle with the axis, the fixed end of the special-shaped elastic piece is located on the reverse side of the body, and the special-shaped support section of the special-shaped elastic piece can cross the axis of the body and be located on the forward side of the body; the torque interruption device includes a breaking The opening piece is connected to the pressing piece by abutting against the disconnecting piece; when the force applied by the digital display torque wrench continues to rise until it is equal to the torque setting value, the disconnecting piece can jump out of the pressing piece and interrupt the force applied by the digital display torque wrench; when the digital display torque wrench returns to its natural state, the disconnecting piece and the pressing piece can automatically restore their original abutting state; a first limiting portion is provided on one side of the end, and the pressing piece has a second limiting portion arranged opposite to each other, and the first limiting portion and the second limiting portion can abut against each other to limit the swing amplitude of the pressing piece; a reset piece is provided between the end and the pressing piece, and the reset piece normally causes the pressing piece and the pressing piece to be in abutment with each other The torque interrupting device maintains an abutting state, and there is an elastic member between the pull member and the main body, which provides the pull member with a force to restore to a natural state; the adjusting device is arranged between the end and the pressing member, and the adjusting device includes an adjusting member and a nut screwed on one end of the adjusting member, and the other end of the adjusting member is screwed on the end and abuts against the pressing member, and the pressing member has a first abutting portion, and the disconnecting member has a second abutting portion on a side different from the special-shaped elastic member, which is used to abut against the first abutting portion, and the adjusting member can adjust the pivot angle of the pressing member relative to the end, thereby changing the contact area of ​​the first abutting portion against the second abutting portion.

[0016] Furthermore, the main body forms a top side and an oppositely arranged bottom side along the direction of the operating axis, and the shaft is exposed from the bottom side of the main body for the pivoting of the operating handle. The first force transmission member has a first connecting end and a first pressing portion, and the second force transmission member has a second connecting end and a second pressing portion arranged in the sliding member. The second connecting end is slidably connected to the first connecting end. In the locked position, the first pressing portion presses against the main body, and the second pressing portion presses against the sliding member.

[0017] Furthermore, the sliding member has a first tooth portion arranged along a direction parallel to the axis, the first force transmission member has a second tooth portion arranged around the operating axis away from the first pressing portion, the second tooth portion is engaged with the first tooth portion, the first force transmission member is rotatably arranged on the shaft along the operating axis, so that the user rotates the first force transmission member to drive the sliding member to move relative to the body, the first force transmission member is provided with a rotating end away from the first connection end, the rotating end has a first rotation radius, and the second tooth portion is arranged along the operating axis. A second rotation radius is set, and the first rotation radius is larger than the second rotation radius; the operating handle has an eccentric cam, and when in the locked position, the eccentric cam applies force to the second force transmission member, so that the second force transmission member and the first force transmission member are pressed toward each other to clamp the main body and the sliding member; the shaft of the locking device has a threaded portion passing through the first force transmission member, so that a first screwing member and a second screwing member are screwed on the threaded portion, and a disc spring is provided between the first screwing member and the first force transmission member.

[0018] Furthermore, it also includes a biasing device, which is arranged between the main body and the sliding member, and applies elastic force to the sliding member along a direction perpendicular to the axis and the operating axis; the biasing device includes a spring sheet, each of the two ends of the spring sheet has a hook and fixing portion, and each hook and fixing portion is respectively hooked and connected to the side of the sliding member.

[0019] Furthermore, the axis divides the body into a forward side and a reverse side, the body has an inner wall, the inner wall is provided with a first inner wall on the reverse side and a second inner wall on the forward side, the pulling device includes a pulling member, a connecting rod and an actuating member, the pulling member is pivoted at the first end, the pulling member is provided with an end, the connecting rod is pivoted at the end, the actuating member is pivoted to the body and can move between a first pivot position and a second pivot position relative to the body, so that the actuating member can form a linkage relationship with the connecting rod; when the actuating member is at the first pivot position, the actuating member can transmit the reaction force of the pulling device to the special-shaped elastic member; when the When the torque interruption device is disconnected, the force applied by the digital display torque wrench is interrupted, and when the actuating member swings to the second pivot position, the actuating member can link the connecting rod to move relative to the body, and at the same time cause the pull member to hit the first inner wall, and the actuating member hits the second inner wall; one side of the end of the pull member has a first impact surface, and a first impact space is formed between the first impact surface and the first inner wall, and one side of the actuating member has a second impact surface, and a second impact space is formed between the second impact surface and the second inner wall; when the torque interruption device disconnects the force applied by the digital display torque wrench, the first impact surface enters the first impact space. The connecting rod is provided with a first connecting end and a second connecting end, the ... first connecting end The first angle is greater than the impact angle, and the first connecting end of the connecting rod can cross the axis of the main body and be located on the opposite side of the main body as the second connecting end; the torque interruption device includes a disconnection member, and the pulling device is pivotally provided with a pressing member opposite to the pulling end, one side of the pressing member is in contact with the actuating member, and the other side is in contact with the disconnection member; when the force applied by the digital display torque wrench continues to increase until it equals the torque setting value, the disconnection member can jump out of the pressing member and interrupt the force applied by the digital display torque wrench; when the digital display torque wrench returns to a natural state, the disconnection member and the pressing member can automatically return to their original contact state;4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The force piece has an inclination angle relative to the body; the special-shaped elastic piece is arranged in the body at an inclination relative to the axis of the body, and the special-shaped support section of the special-shaped elastic piece has a curved contact area; the pulling device also includes two clamping plates, the second connecting end of the connecting rod is pivotally arranged on one side of the two clamping plates, the pressing piece is pivotally arranged on the other side of the two clamping plates, and the actuating piece is two pieces and is superimposed and fixedly connected with the two clamping plates, the actuating piece is provided with a first limiting portion away from the pulling end, the pressing piece has a second limiting portion arranged opposite to each other, the first limiting portion and the second limiting portion can abut against each other to limit the swing amplitude of the pressing piece; a reset piece is provided between the actuating piece and the pressing piece, the reset piece normally keeps the pressing piece and the disconnecting piece in an abutting state, and an elastic piece is provided between the pulling piece and the first inner wall of the body, the elastic piece provides the pulling piece with a force to restore to a natural state.

[0020] Furthermore, the torque sensing device includes a sensing member and a display, which is electrically connected to the sensing member. The sensing member has a movable part, which is connected to the sliding member and moves with the sliding member, so that the sensing member senses the displacement change of the sliding member and generates a torque signal. The display displays the torque setting value according to the torque signal. The main body has an accommodating space. The main body is provided with a sensing hole connected to the accommodating space at the first end toward the second end. The sensing member senses the displacement change of the sliding member through the sensing hole. The torque sensing device also includes a counter, which can send a counting signal according to the number of times the disconnecting member and the pressing member jump out and display it on the display. The pulling device has a driving head and a pulling member. The pulling member is pivotally arranged at the first end, the pulling end is arranged on the driving head, and the driving head is detachably arranged on the pulling member; the main body also includes a gripping member arranged at the second end.

[0021] Thus, the locking device of the present invention can increase the frictional resistance between the main body and the sliding member when locking them in the locking position, thereby making the structure more compact so that the wrench will not produce micro-movements during the force application process, and can make the torque performance of the wrench more accurate and have the effect of not distorting the torque.

[0022] In addition, the present invention also has the function of rapid tripping of a mechanical torque wrench and rapid adjustment of the torque setting value, and also has the function of digital display of an electronic torque wrench. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the appearance of a first embodiment of a digital display torque wrench according to the present invention;

[0024] FIG2 is a schematic diagram of the exploded structure of the first embodiment of the digital display torque wrench of the present invention;

[0025] FIG3 is a partial longitudinal sectional view taken from FIG1 , showing the locking device in the locked position;

[0026] FIG4 is a partial cross-sectional view taken from FIG1 , showing the supporting portion in the lower limit position and the torque setting value set to the minimum;

[0027] FIG5 is a schematic diagram of the torque wrench of the first embodiment of the digital display according to the present invention, showing the wrench in a tripped state;

[0028] FIG6 is a partial longitudinal cross-sectional view of the digital display torque wrench of the present invention, showing that the locking device is in the released position and the first force transmission member is able to drive the sliding member to linearly displace, thereby adjusting the supporting portion to the upper limit position;

[0029] FIG7 is a partial cross-sectional schematic diagram of the digital display torque wrench of the present invention, showing that the supporting portion is in the upper limit position and the torque setting value is set to the maximum;

[0030] FIG8 is a schematic diagram of the exploded structure of a second embodiment of a digital display torque wrench according to the present invention;

[0031] FIG9 is a partial longitudinal sectional view taken from FIG8 , showing the locking device in the locked position;

[0032] FIG10 a is a partial cross-sectional view taken from FIG8 , showing that the supporting portion is in the lower limit position and the torque setting value is set to the minimum;

[0033] FIG10b is a partial enlarged schematic diagram of FIG10a;

[0034] FIG11a is a schematic diagram of the torque wrench according to the second embodiment of the digital display of the present invention, showing the wrench in a tripped state;

[0035] FIG11b is a partial enlarged schematic diagram of FIG11a;

[0036] FIG12 is a partial longitudinal cross-sectional view of the digital display torque wrench of the present invention, showing that the locking device is in the released position and the first force transmission member is able to drive the sliding member to linearly displace, thereby adjusting the supporting portion to the upper limit position;

[0037] FIG13 is a partial cross-sectional schematic diagram of the digital display torque wrench of the present invention, showing that the supporting portion is in the upper limit position and the torque setting value is set to the maximum;

[0038] FIG. 14 is a graph showing the digital display of the torque wrench according to the present invention, showing the change in force applied by the user versus time.

[0039] In the figure: 100, 100a, digital display torque wrench; 1, body; 10, first end; 11, second end; 12, accommodating space; 121, guide portion; 122, inner wall; 122a, first inner wall; 122b, second inner wall; 13, pivot hole; 14, sensing hole; 15, through hole; 16, through hole; 17, pivot hole; 1a, top side; 1b, bottom side; 1c, gripping member; 2, pulling device; 20, pulling member; 201, slot; 202, connecting portion; 203, pivot hole; 204, end; 204a, first impact surface; 204b; through hole; 205, first limiting portion; 206, elastic member; 207, accommodating hole; 208, through hole; 209, accommodating hole; 21, driving head; 210, adjustment 211, block; 22, pressing member; 221, through hole; 222, fixing pin; 223, second limiting portion; 224, first abutting portion; 225, fixing pin; 23, fixing pin; 25, reset member; 25a, reset member; 26, connecting rod; 260, axis; 261, first connecting end; 261a, through hole; 262, second connecting end; 262a, through hole; 263, fixing pin; 264, fixing pin; 27, actuating member; 271, through hole; 272, through hole; 273, actuating end; 274, receiving groove; 275, first limiting portion; 276, second impact surface; 28, splint; 281, fixing pin; 282, through hole; 283, fixing pin 284, through hole 285, through hole 2a, pull end 3. Torque interrupter 31, disconnector 311, through-hole 312, second abutting portion 32, fixing pin 4, special-shaped elastic member; 40, axis; 41, body; 42, fixed end; 43, special-shaped support segment; 431, curved contact area; 5. Torque adjustment device; 50, sliding member; 501, supporting portion; 502, fixing pin; 503, adjustment slot; 504, first tooth portion; 505, insertion hole; 506, through-hole; 51, first force transmission member; 511, first connecting end; 512, first pressing portion; 513, rotating end; 514, force-bearing portion; 515, second tooth portion; 516, non-circular shaft; 51a, first force transmission member 51a1, slot; 52, dust cover; 6. locking device; 60, shaft; 601, pivot Connecting hole; 602, threaded portion; 61, operating handle; 611, eccentric cam; 612, pivot member; 62, second force transmission member; 621, second connecting end; 622, second pressing portion; 623, second tooth portion; 62a, second force transmission member; 63, force transmission assembly; 631, block; 632, elastic sheet; 64, cover; 65, first screw member; 66, second screw member; 67, disc spring; 7, torque sensing device; 70, display; 71, sensing member; 711, movable portion; 72, counter; 73, power supply; 8, biasing device; 80, spring; 81, hooking portion; 9, adjustment device; 90, adjustment member; 901, adjustment end; 902, pressing end; 91, nut; 911, hole; A, tilt angle;B, impact angle; L1, axis; L2, rotation axis; L3, operating axis; LF, forward side; LR, reverse side; R1, first rotation radius; R2, second rotation radius; S, elastic device; S1, spring; S2, screw; SP1, first impact space; SP2, second impact space; θ1, first angle; θ2, first angle. Best Mode for Carrying Out the Invention

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] 1 to 7 , the present invention is a first embodiment of a digital display torque wrench 100 for mechanically adjusting torque. The torque wrench 100 includes a body 1 , a pulling device 2 , a torque interruption device 3 , a special-shaped elastic member 4 , a torque adjustment device 5 , a locking device 6 , and a torque sensing device 7 .

[0042] The main body 1 is formed with a first end 10 and a second end 11 away from the first end 10 along an axis L1. The axis L1 divides the main body 1 into a forward side LF and a reverse side LR. The main body 1 has a accommodating space 12. In the embodiment of the present invention, the main body 1 is a flat rectangular hollow tube, and a guide portion 121 is provided in the accommodating space 12. In addition, the main body 1 is provided with a pivot hole 13, a sensing hole 14 and a through hole 15 in sequence from the first end 10 toward the second end 11. The pivot hole 13, the sensing hole 14 and the through hole 15 are respectively connected to the accommodating space 12, and the sensing hole 14 is an elongated hole. The accommodating space 12 has an inner wall 122, and the inner wall 122 has a first inner wall 122a on the reverse side LR and a second inner wall 122b on the forward side LF.

[0043] The pulling device 2 is swingably arranged at the first end 10 of the main body 1, and the pulling device 2 has a pulling end 2a exposed from the main body 1. The pulling end 2a has a rotation axis L2. When the digital display torque wrench 100 is pulled, the main body 1 can rotate about the rotation axis L2 to turn the fastener. The rotation axis L2 is perpendicular to the axis L1. In an embodiment of the present invention, the pulling device 2 includes a pulling member 20, a driving head 21 and a pressing member 22. The pulling end 2a is arranged at one end of the driving head 21, and the other end of the driving head 21 is detachably connected to the pulling member 20. As shown in Figure 2, the pulling member 20 has a card slot 201, and the driving head 21 has a card block 211. The card slot 201 and the card block 211 are matched with each other in a concave and convex manner, so that the user can select a specific driving head 21 to be assembled with the pulling member 20 according to different working requirements.

[0044] The pull member 20 is pivotally mounted at the first end 10 of the main body 1 and is capable of generating a relative pivotal relationship. The pull member 20 has a connecting portion 202 away from the card slot 201. The pull member 20 is inserted through the pivot hole 13 of the main body 1 and the pivot hole 203 of the pull member 20 via a fixing pin 23, so that the pull member 20 is pivotally mounted at the first end 10 of the main body 1. The connecting portion 202 has an end 204 away from the pull end 2a and extends into the main body 1. A first limiting portion 205 is provided on one side of the end 204. An elastic member 206 is provided between the connecting portion 202 and the first inner wall 122a of the main body 1. One end of the elastic member 206 abuts against the first inner wall 122a, and the other end abuts against the receiving hole 207 on the side of the pull member 20, so as to provide the pull member 20 with a force to restore to its natural state.

[0045] The pressing member 22 is pivotally mounted on the end of the triggering device 2 opposite the triggering end 2a. In this embodiment of the present invention, the pressing member 22 has a through-hole 221 and is pivotally mounted to the through-hole 208 of the end 204 via a fixing pin 222. The pressing member 22 has a second limiting portion 223 on one side facing the end 204 and a first abutting portion 224 on the other side. The first limiting portion 205 and the second limiting portion 223 can abut against each other to limit the swinging range of the pressing member 22.

[0046] The torque interrupting device 3 is pivotally mounted within the accommodating space 12 of the main body 1 and is capable of selectively abutting against the end of the triggering device 2 that is distal to the triggering end 2a. In other words, the torque interrupting device 3 is capable of abutting against the triggering device 2. In this embodiment of the present invention, the torque interrupting device 3 selectively abuts against the pressing member 22 of the triggering device 2. The torque interrupting device 3 includes a disconnecting member 31. The disconnecting member 31 is pivotally mounted to the main body 1 via a fixing pin 32 extending through a through-hole 311, for abutting against the pressing member 22. The disconnecting member 31 is capable of swinging relative to the main body 1 between a first position and a second position.

[0047] When the force applied by the digital display torque wrench 100 continues to increase until it reaches the set torque value, the disconnecting member 31 can disengage from the pressing member 22, interrupting the force applied by the digital display torque wrench 100 (as shown in FIG4 ). When the digital display torque wrench 100 returns to its natural state, the disconnecting member 31 and the pressing member 22 can automatically return to their original contact state (as shown in FIG5 ). In this embodiment of the present invention, the disconnecting member 31 has a second contact portion 312 on a side different from the special-shaped elastic member 4, which is used to contact the first contact portion 224 of the pressing member 22. In addition, the pulling device 2 also includes a reset member 25, which is disposed between the receiving hole 209 of the end 204 and the pressing member 22. The reset member 25 is a spring that normally maintains the pressing member 22 in contact with the torque interruption device 3.

[0048] The shaped elastic member 4 is disposed within the body 1 at an angle relative to the axis L1 of the body 1. The axis 40 of the shaped elastic member 4 forms an inclination angle A with the axis L1. One end of the shaped elastic member 4 is fixed to the disconnect member 31 of the torque interrupting device 3. In this embodiment of the present invention, the shaped elastic member 4 is a long rod having a body section 41 along the axis 40. One end of the body section 41 has a fixed end 42, and an end opposite the fixed end 42 has a shaped support section 43. The shaped support section 43 has a curved contact area 431. The fixed end 42 is located on the forward side LF of the body 1 and is fixed to the disconnect member 31 of the torque interrupting device 3 on a side opposite the pressure member 22. The shaped support section 43 of the shaped elastic member 4 is capable of crossing the axis L1 of the body 1.

[0049] The torque adjustment device 5 is assembled with the main body 1. The torque adjustment device 5 has a sliding member 50 that is slidably arranged in the guide portion 121 inside the main body 1 along a direction parallel to the axis L1. The sliding member 50 is a frame, and a supporting portion 501 is rotatably arranged inside. The supporting portion 501 is a roller for the special-shaped support section 43 of the special-shaped elastic member 4 to abut against, so that the curved contact area 431 and the supporting portion 501 have a rolling contact relationship. In an embodiment of the present invention, the supporting portion 501 is pivotally arranged on the sliding member 50 by a fixing pin 502. And when the axial position of the supporting portion 501 of the sliding member 50 relative to the special-shaped support section 43 is adjusted, the contact area between the aforementioned first abutting portion 224 and the second abutting portion 312 can be changed.

[0050] The slider 50 also has an adjustment slot 503. A first tooth portion 504 is disposed on one side of the inner edge of the adjustment slot 503. The first tooth portion 504 is arranged parallel to the axis L1 and is in the shape of a straight strip. The profiled support section 43 of the profiled elastic member 4 is inserted into the slider 50, so that the supporting portion 501 contacts and abuts against the profiled support section 43. Displacement of the slider 50 drives the supporting portion 501 to change the supporting position of the supporting portion 501 against the profiled support section 43 of the profiled elastic member 4.

[0051] Specifically, the torque setting value is minimized when the supporting portion 501 of the torque adjustment device 5 abuts the curved contact area 431 of the shaped elastic member 4, away from the fixed end 42 (as shown in FIG4 ). The torque setting value is maximized when the supporting portion 501 of the torque adjustment device 5 abuts the curved contact area 431 of the shaped elastic member 4, closer to the fixed end 42 (as shown in FIG7 ). Because the torque adjustment device 5 is user-operable, the axial position of the supporting portion 501 relative to the shaped support segment 43 can be easily adjusted, thereby changing the inclination angle A of the shaped elastic member 4 relative to the body 1 . Therefore, when the torque setting value is minimum, the inclination angle A of the special-shaped elastic member 4 is minimum, and the tilting angle of the disconnect member 31 relative to the main body 1 is small, and accordingly, the contact area between the first abutting portion 224 of the pressing member 22 and the second abutting portion 312 of the disconnect member 31 is smaller; when the torque setting value is maximum, the inclination angle A of the special-shaped elastic member 4 is maximum, and the tilting angle of the disconnect member 31 relative to the main body 1 is large, and accordingly, the contact area between the first abutting portion 224 of the pressing member 22 and the second abutting portion 312 of the disconnect member 31 is larger. In this way, the force of the disconnect member 31 engaging with the pressing member 22 is increased, that is, a higher pulling torque is required to make the two of them jump out, so that the torque setting value of the digital display torque wrench 100 has an upward adjustment effect, thereby being able to extend the upper limit of the torque setting value to obtain a wider torque setting value setting range.

[0052] The locking device 6 is assembled between the slider 50 and the body 1 and can be switched between a released position and a locked position. In the released position, the user can easily adjust the axial position of the supporting portion 501 of the slider 50 relative to the shaped elastic member 4 to adjust the torque of the digital torque wrench 100. In the locked position, the locking device 6 applies frictional resistance between the slider 50 and the body 1, preventing the slider 50 from moving relative to the body 1. In an embodiment of the present invention, in the release position, the user can perform a rotation operation along an operating axis L3 parallel to the rotation axis L2 and perpendicular to the axis L1 to adjust the position of the sliding member 50 on the axis L1. The locking device 6 is connected to the torque adjustment device 5 along the operating axis L3, and in the locked position, the locking device 6 applies frictional resistance to the sliding member 50 along the direction of the operating axis L3, so that the locking device 6 clamps the sliding member 50 and the main body 1, so that the main body 1 and the sliding member 50 form a stable locking state (as shown in Figure 3), so that the sliding member 50 cannot move relative to the main body 1. Since the locking device 6 is connected to the torque adjustment device 5, the two are co-constructed together, so that the overall structural arrangement of the present invention is more compact.

[0053] In this embodiment of the present invention, the main body 1 is formed along the operating axis L3 with a top side 1a and an opposite bottom side 1b. The torque adjustment device 5 also includes a first force transmission member 51 capable of driving the sliding member 50 to generate displacement. The first force transmission member 51 has a first connecting end 511, a first pressing portion 512, and a rotating end 513 remote from the first connecting end 511. The rotating end 513 is in the shape of a circular turntable and has a first rotation radius R1. In addition, the first force transmission member 51 has a force-bearing portion 514 remote from the first pressing portion 512.

[0054] The locking device 6 includes a shaft 60 extending along the operating axis L3 through the through-hole 15 of the body 1 and the sliding member 50; an operating handle 61 pivotally mounted at one end of the shaft 60; and a second force transmission member 62 threadedly mounted on the shaft 60. The shaft 60 has a pivot hole 601 at one end, which protrudes from the top side 1a of the body 1. The operating handle 61 has an eccentric cam 611 and is pivotally mounted to the pivot hole 601 of the shaft 60 via a pivot member 612. This allows the user to selectively pivot the operating handle 61 relative to the shaft 60 and drives the shaft 60 to move along the operating axis L3. Both the first force transmission member 51 and the second force transmission member 62 are mounted on the shaft 60. The first force transmission member 51 is rotatably mounted between the body 1 and the shaft 60 along the operating axis L3, thereby interlocking with the second force transmission member 62. In the locked position, the operating handle 61 can pull the shaft 60 along the operating axis L3, driving the first force transmission member 51 and the second force transmission member 62 to press toward each other, thereby clamping the body 1 and the sliding member 50 (as shown in Figure 3); in the released position, the operating handle 61 is loosened relative to the shaft 60, allowing the user to operate the first force transmission member 51 and thereby drive the sliding member 50 to slide linearly relative to the body 1 (as shown in Figure 6).

[0055] In the first embodiment, the operating handle 61 is located on the top side 1a of the main body 1, allowing the user to operate the locking device 6 from the top side 1a of the digital display torque wrench 100. The second force transmission member 62 has a second connecting end 621 and a second pressing portion 622 provided in the sliding member 50. The second connecting end 621 is movably connected to the first connecting end 511. In the locked position, the first pressing portion 512 presses against the main body 1, and the second pressing portion 622 presses against the sliding member 50 to clamp and lock the two. The first connecting end 511 and the second connecting end 621 are sleeved together so as not to produce relative rotation, for example, in a concave-convex fitting manner. In this way, the locking device 6 can lock the main body 1 and the sliding member 50, making the structure more compact so that the wrench will not produce a micro-motion state during the force application process, making the torque performance more accurate and achieving the effect of no torque distortion.

[0056] The second force transmission member 62 is provided with a second tooth portion 623 disposed about the operating axis L3 between the second connection end 621 and the second pressing portion 622. The second tooth portion 623 engages with the first tooth portion 504 of the sliding member 50. The second force transmission member 62 has a second rotation radius R2, along which the second tooth portion 623 is disposed. The first rotation radius R1 is greater than the second rotation radius R2. This allows the user to rotate the first force transmission member 51 and the second force transmission member 62 with minimal force, causing the second force transmission member 62 to cause the sliding member 50 to move relative to the body 1, thereby quickly adjusting the upper or lower limit of the torque setting value.

[0057] In this embodiment of the present invention, the locking device 6 includes a force transmission assembly 63, which is disposed in contact between the eccentric cam 611 of the operating handle 61 and the force-bearing portion 514 of the first force transmission member 51. The force transmission assembly 63 includes a block 631 and an elastic piece 632. When in the locked position, the eccentric cam 611 of the operating handle 61 applies force to the force transmission assembly 63, causing the force transmission assembly 63 to transmit force to the first force transmission member 51. When in the released position, the elastic piece 632 provides the force for the block 631 to return to its original position. In addition, the locking device 6 further includes a cover 64 disposed on the first force transmission member 51 and away from the second force transmission member 62 to stabilize the block 631.

[0058] The torque sensing device 7 is disposed on the body 1 relative to the torque adjustment device 5. It senses the adjustment of the torque adjustment device 5 and displays the torque setting value, allowing the user to intuitively understand the torque setting status. In this embodiment of the present invention, the torque sensing device 7 includes a display 70, a sensor 71, a counter 72, and a power supply 73, which are electrically connected to each other. The torque sensing device 7 is disposed on the top side 1a of the body 1. The power supply 73 is a battery located within the second end 11 of the body 1 and supplies power to the display 70, sensor 71, and counter 72.

[0059] The position of the sensor 71 corresponds to the sensing hole 14. The sensor 71 has a movable portion 711. The movable portion 711 is inserted into the insertion hole 505 of the slider 50 and moves with the slider 50. The sensor 71 senses the displacement of the slider 50 through the sensing hole 14 and generates a torque signal. The display 70 displays the torque setting value based on the torque signal. The sensor 71 is a variable resistor.

[0060] The counter 72 is disposed at a position corresponding to the pressing member 22 of the torque interruption device 3 and is capable of sending a counting signal based on the number of times the disconnection member 31 and the pressing member 22 are disengaged and displayed on the display 70. This allows the user to understand the number of times the digital torque wrench 100 exceeds the set torque setting value and accurately lock the fastener to the predetermined pound value.

[0061] In addition, the body 1 of the present invention further includes a gripping member 1 c , which is sleeved on the second end 11 of the body 1 for gripping operation.

[0062] The present invention also includes a biasing device 8 disposed between the body 1 and the slider 50. The biasing device 8 comprises an elongated spring 80 disposed between the body 1 and the slider 50 along a parallel axis L1. The spring 80 applies a spring force to the slider 50 in a direction perpendicular to the axis L1 and the operating axis L3, thereby eliminating the clearance between the slider 50 and the body 1. Each end of the spring 80 has a hooking portion 81. Each hooking portion 81 hooks into a through-hole 506 connected to the side of the slider 50, allowing the spring 80 to engage with the slider 50 and move with it.

[0063] The actuating device 2 of the present invention further includes an adjustment device 9 that can adjust the contact between the actuating device 2 and the torque interruption device 3, thereby adjusting the torque accuracy of the wrench. In this embodiment of the present invention, the adjustment device 9 is disposed between the end 204 of the actuating member 20 and the actuating member 22. The adjustment device 9 includes an adjustment member 90 and a nut 91 screwed on one end of the adjustment member 90. The adjustment member 90 and the nut 91 extend into the main body 1 through the through-hole 16 on one side of the main body 1, and the adjustment member 90 is screwed on the adjustment hole 210 of the end 204 with the other end. The adjustment member 90 has an adjustment end 901 and a rest end 902. The nut 91 has a hole 911. The rest end 902 is exposed from the adjustment hole 210 and abuts against the pressure member 22. Before the wrench is shipped or when it is repaired, a hand tool can be used to insert into the through-hole 16 and the hole 911 of the nut 91 and rotate the adjustment end 901, thereby adjusting the pivot angle of the pressure member 22 relative to the end 204, thereby changing the contact area between the first abutting portion 224 of the pressure member 22 and the second abutting portion 312 of the disconnecting member 31.

[0064] The present invention further includes an elastic device S, which includes a spring S1 and a screw S2. The screw S2 is screwed onto one side of the disconnect member 31. One end of the spring S1 is connected to the screw S2, and the other end abuts against the first inner wall 122a. The spring S1 of the elastic device S can ensure that the curved contact area 43 of the special-shaped elastic member 4 is constantly in contact with the supporting portion 501 of the sliding member 50.

[0065] As shown in Figures 6 and 7, the locking device 6 is in the released position, so that the user can rotate the first force transmission member 51 to adjust the torque setting value, and the first force transmission member 51 is used to rotate to drive the second force transmission member 62 to rotate, so as to drive the sliding member 50 to move linearly relative to the body 1 along the axis L1 toward the disconnecting member 31, and quickly adjust the supporting portion 501 from the lower limit position to the upper limit position, that is, the position where the supporting portion 501 supports the special-shaped supporting section 43 of the special-shaped elastic member 4, moves from the end to about the middle section, and this position is The torque setting value of the torque wrench 100 is shown as being set to the maximum. With this stroke adjustment, because the first rotation radius R1 is greater than the second rotation radius R2, the user can quickly complete the adjustment within 1-2 rotations of the first force transmission member 51, making it very quick and convenient to use. At this point, the disconnect member 31 is in the first position, and the first force transmission member 51 can be rotated by the user to drive the slider 50 to adjust the position of the supporting portion 501 relative to the profiled support section 43, enabling quick and easy adjustment from the lower torque limit to the upper torque limit. Of course, if the position shown in Figures 3 and 4 is to be returned to, the aforementioned adjustment steps can be repeated, allowing the present invention to quickly and easily adjust from the upper torque limit to the lower torque limit.

[0066] Next, as shown in Figure 7, when the digital display torque wrench 100 is pulled, since the torque setting value is set to the maximum state, the portion of the shaped elastic member 4 between the fixed end 42 and the supporting portion 501 is bent less by the reaction force of the pulling device 2 than when the torque setting value is set to the minimum state. When the pulling force of the digital display torque wrench 100 exceeds the set value, as described above, the disconnecting member 31 can be disconnected from the pressing member 22, interrupting the transmission of the force applied by the digital display torque wrench 100, prompting the user to stop applying force and avoid damaging the fastener. The operation of the aforementioned torque adjustment device 5 can quickly adjust the sliding member 50 along a direction parallel to the axis L1, thereby achieving the effect of quickly adjusting the torque.

[0067] Please refer to Figures 8 to 14 , which illustrate a second embodiment of a digital display torque wrench 100a according to the present invention. Similarities with the first embodiment will not be repeated. However, the second embodiment differs in that the operating handle 61 is located on the bottom side 1b of the body 1 , allowing the user to operate the locking device 6 from the bottom side 1b of the digital display torque wrench 100a. Furthermore:

[0068] The main body 1 defines another pivot hole 17 between the pivot hole 13 and the through hole 15 , which is connected to the accommodating space 12 .

[0069] The triggering device 2 further includes a connecting rod 26, an actuator 27, and two clamping plates 28. The distal end 204 of the triggering member 20 has a first impact surface 204a on one side, defining a first impact space SP1 between the first impact surface 204a and the first inner wall 122a. The connecting rod 26 has a first connecting end 261 and an oppositely disposed second connecting end 262. In this embodiment of the present invention, the first connecting end 261 of the connecting rod 26 is pivotally mounted to the distal end 204 via a fixing pin 263 that passes through the through-hole 204b of the distal end 204 and the through-hole 261a of the connecting rod 26.

[0070] Four fixing pins 281 extend through holes 282 in the two plates 28 and through holes 271 in the actuator 27 on either side of the two plates 28, securing the two plates 28 and the actuator 27 together. The second connecting end 262 of the connecting rod 26 is pivotally mounted on one side of the two plates 28 via a fixing pin 264 extending through a hole 262a. Furthermore, in the second embodiment, the actuator 27 is comprised of two pieces, namely, the two pieces are held by the two plates 28 and are superimposed and fixed together.

[0071] The actuating member 27 and the two clamping plates 28 are pivotally mounted to the main body 1 via a fixing pin 283 extending through the pivot hole 17, the through-holes 284 of the two clamping plates 28, and the through-holes 272 of the actuating member 27. This allows the actuating member 27 and the two clamping plates 28 to swing relative to the main body 1 between a first pivot position and a second pivot position. This allows the actuating member 27 to be linked to the second connecting end 262 of the connecting rod 26. Specifically, when the triggering member 20 swings, the connecting rod 26 can move the two clamping plates 28, which in turn causes the two clamping plates 28 to swing the actuating members 27. Furthermore, each actuating member 27 is provided with an actuating end 273 at its end distal from the connecting rod 26. The actuating end 273 has a receiving slot 274 and a first limiting portion 275, with the first limiting portion 275 distal to the triggering end 2a. In addition, one side of the actuating member 27 has a second impact surface 276 , and a second impact space SP2 is defined between the second impact surface 276 and the second inner wall 122 b.

[0072] In the second embodiment, the pressure member 22 is pivotally mounted to the through-hole 285 on the other side of the two clamping plates 28 via a fixing pin 225, thereby interlocking with the actuating end 273 of the actuating member 27. The second limiting portion 223 of the pressure member 22 abuts the first limiting portion 275 of the actuating member 27 to limit the swing range of the pressure member 22.

[0073] In the second embodiment, the return member 25a is located in the receiving groove 274 and is disposed between the actuating member 27 and the pressing member 22, normally maintaining the pressing member 22 in contact with the disconnecting member 31. Three elastic members 206 are located between the triggering member 20 and the body 1 to provide the force for the triggering member 20 to return to its normal state.

[0074] The first force transmission member 51a of the torque adjustment device 5 has a second toothed portion 515, located away from the first pressing portion 512, circumferentially around the operating axis L3 and configured to engage with the first toothed portion 504 of the sliding member 50. The second toothed portion 515 is a gear fixed to a non-circular shaft 516 of the first force transmission member 51a. The first force transmission member 51a has a groove 51a1 for receiving a dust cover 52.

[0075] The second connection end 621 of the second force transmission member 62a of the locking device 6 is slidably connected to the non-circular shaft 516 of the first force transmission member 51a. Similar to the first embodiment, the locking device 6 of the second embodiment also selectively clamps the slider 50 and the body 1, thereby achieving a stable locked state between the body 1 and the slider 50. In the locked position, the eccentric cam 611 of the operating handle 61 applies force to the second force transmission member 62a, forcing the second force transmission member 62a and the first force transmission member 51a toward each other, thereby clamping the body 1 and the slider 50.

[0076] Furthermore, the threaded portion 602 of the shaft 60 of the locking device 6 is passed through the first force transmission member 51a and extends into the groove 51a1, so that a first screw member 65 and a second screw member 66 are screwed on the threaded portion 602, wherein a disc spring 67 is provided between the first screw member 65 and the first force transmission member 51a to absorb vibration and prevent the first screw member 65 and the second screw member 66 from detaching from the shaft 60.

[0077] In the second embodiment, the adjustment device 9 is disposed between the actuating member 27 and the pressure member 22. The adjustment member 90 is threadedly mounted on the pressure member 22 and abuts against the actuating member 27, thereby adjusting the pivot angle of the pressure member 22 relative to the actuating member 27. This also achieves the same effect as the first embodiment in adjusting the contact area between the pressure member 22 and the disconnecting member 31.

[0078] Please refer to Figures 9, 10a, and 10b. As shown in Figure 9, the supporting portion 501 is in the lower limit position, i.e., the supporting portion 501 is supported at the end of the special-shaped support section 43 of the special-shaped elastic member 4 and is farthest from the actuating end 2a. Thus, the torque setting value of the digital display torque wrench 100 is set to the minimum, and the disconnecting member 31 is also in the first position. As shown in Figure 10b, when the digital display torque wrench 100 is in the neutral position, the axis 260 of the connecting rod 26 forms a first angle θ1 with the axis L1, the second impact surface 276 forms an impact angle B with the axis L1, and the second connecting end 262 of the connecting rod 26 is located on the reverse side LR. The first angle θ1 is greater than the impact angle B.

[0079] 11a, 11b, and 14, when the digital display torque wrench 100 is pulled and the actuating member 27 is in the first pivot position, the actuating member 27 can transmit the reaction force of the pulling device 2 to the special-shaped elastic member 4, causing the portion of the special-shaped elastic member 4 between the fixed end 42 and the supporting portion 501 to bend; and when the pulling force of the digital display torque wrench 100 is greater than the torque setting value, the disconnecting member 31 can be disconnected from the pressing member 22 and interrupted, so that the force applied by the digital display torque wrench 100 is interrupted, so that the actuating member 27 swings from the first pivot position. When it reaches the second pivotal position, the actuating member 27 can link the connecting rod 26 to generate displacement relative to the main body 1, and cause the actuating member 27 and the pulling member 20 to simultaneously impact the first inner wall 122a and the second inner wall 122b of the main body 1. During the impact, the first impact surface 204a of the pulling member 20 enters the first impact space SP1 and impacts the first inner wall 122a, and the second impact surface 276 of the actuating member 27 enters the second impact space SP2 and impacts the second inner wall 122b, thereby providing the user with a clear mechanical torque release feel when turning, thereby prompting the user to stop applying force. Furthermore, because the connecting rod 26 and the actuating member 27 are interlocked and disposed between the pull member 20 and the disconnecting member 31, when the disconnecting member 31 is able to disengage from the pressing member 22, the connecting rod 26 can instantly convert the thrust originally received from the pull member 20 into a pulling force that holds the pull member 20. This pulling force delays the time for the pull member 20 to strike the first inner wall 122a. Since the user is still susceptible to inertial force when turning the operating wrench to a preset torque value, the interlocking effect of the connecting rod 26 of the present invention can buffer the inertial force generated when the user turns the fastener to the preset torque value, thereby preventing excessive torque from being applied to the fastener and achieving a more precise turning operation. Accordingly, when the wrench reaches the preset torque value, a peak value X (Nm) appears. Then, within a short period of 1 second (such as the time interval from t0 to t1 in FIG. 14 ), due to the user's inertia, the next peak value Y (Nm) appears, which is still smaller than the peak value X (Nm). This can prevent the wrench from over-applying force to the fastener, as shown in FIG. 14 .

[0080] Furthermore, as shown in FIG11b , when the torque interruption device 3 interrupts the applied force of the digital display torque wrench 100, the axis 260 of the connecting rod 26 forms a second angle θ2 with the axis L1. The first angle θ1 is greater than the second angle θ2, and the first connecting end 261 of the connecting rod 26 is able to cross the axis L1 of the body 1 and, together with the second connecting end 262, are located on the opposite side LR of the body 1. As described above, when the disconnecting member 31 is in the second position, the shaped elastic member 4 enables the torque interruption device 3 to provide the force to restore the actuating member 2 to its original position. When the actuating force of the digital display torque wrench 100 is less than the torque setting value, the pressing member 22 can resume its original abutment with the disconnecting member 31.

[0081] Then, as shown in Figures 12 and 13, the locking device 6 is in the released position, allowing the user to operate the torque adjustment device 5 to adjust the torque setting value. That is, the first force transmission member 51 rotates to drive the second force transmission member 62 to rotate, thereby driving the sliding member 50 to linearly displace relative to the body 1 along the axis L1 toward the disconnect member 31, thereby quickly adjusting the supporting portion 501 from the lower limit position to the upper limit position. Of course, if it is desired to return to the position shown in Figures 9 and 10a, the above-mentioned adjustment operation can be followed, and the present invention can also achieve the function of quickly and easily adjusting from the upper torque limit to the lower torque limit.

[0082] In summary, the present invention has the following advantages:

[0083] 1. The present invention locks the body 1 and the sliding member 50 by means of the locking device 6 in the locked position, thereby increasing the frictional resistance between the two and preventing the sliding member 50 from moving relative to the body 1. This prevents the wrench from micro-moving during force application, making the wrench's torque performance more accurate and achieving the effect of torque distortion-free.

[0084] 2. The present invention eliminates the clearance between the sliding member 50 and the body 1 through the biasing device 8, making the two fit more precisely, which is conducive to the wrench's high-precision torque performance.

[0085] 3. The present invention uses the adjustment device 9 to adjust the pivot angle of the pressing member 22, and can adjust the contact area between the pressing member 22 and the disconnect member 31 before the wrench leaves the factory or during maintenance, so as to fine-tune the torque accuracy of the wrench.

[0086] 4. The present invention can provide the user with a clear mechanical torque release feel through the linkage between the pull member 20, the connecting rod 26 and the actuator 27, thereby prompting the user to stop applying force. At the same time, it can buffer the inertial force applied by the user when the fastener reaches the preset torque value, thereby avoiding excessive torque on the fastener.

[0087] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0088] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A digital display torque wrench for mechanically adjusting torque, characterized in that: include: A body having a first end and a second end away from the first end formed along an axis; a pulling device, which is swingably disposed at the first end of the body, and includes a pulling end exposed from the body; a torque interrupting device pivotally mounted in the body and capable of selectively abutting against an end of the pulling device away from the pulling end; a special-shaped elastic member, the special-shaped elastic member including a fixed end and a special-shaped supporting section different from the fixed end, the fixed end of the special-shaped elastic member being fixedly mounted on the torque interruption device; a torque adjustment device assembled with the main body, the torque adjustment device comprising a sliding member, the sliding member being slidably disposed in the main body along a direction parallel to the axis, the sliding member having a bearing portion for abutting against the special-shaped support section of the special-shaped elastic member; a locking device assembled between the slider and the body, the locking device being operable between a release position and a lock position. In the release position, a user can easily adjust the axial position of the slider's supporting portion relative to the shaped elastic member. In the lock position, the locking device applies frictional resistance between the slider and the body, preventing the slider from moving relative to the body; and A torque sensing device is arranged at a position of the main body relative to the torque adjusting device. The torque sensing device can sense the displacement change of the sliding member and display a torque setting value.

2. A digital display torque wrench for mechanically adjusting torque according to claim 1, characterized in that: The pulling end has a rotation axis, and during the pulling operation, the main body can rotate along the rotation axis; in the release position, the user can rotate along an operating axis parallel to the rotation axis and perpendicular to the axis to adjust the position of the sliding member on the axis; the locking device is connected to the torque adjustment device along the operating axis; in the locked position, the locking device applies the friction resistance to the sliding member along the direction of the operating axis, so that the locking device clamps the sliding member and the main body.

3. A digital display torque wrench for mechanically adjusting torque according to claim 2, characterized in that: The torque adjustment device includes a first force transmission member that can drive the sliding member to produce a displacement action; the locking device includes a shaft extending through the main body and the sliding member along the operating axis, an operating handle pivotally arranged at one end of the shaft, and a second force transmission member arranged on the shaft, the operating handle can drive the shaft to produce a displacement action along the operating axis direction, the first force transmission member and the second force transmission member are arranged on the shaft, in the locking position, the operating handle can pull the shaft along the operating axis direction, driving the first force transmission member and the second force transmission member to press toward each other respectively, so as to clamp the main body and the sliding member, in the release position, the operating handle is relaxed relative to the shaft, so that the user can rotate the first force transmission member and thereby drive the sliding member to slide linearly relative to the main body.

4. A digital display torque wrench for mechanically adjusting torque according to claim 3, characterized in that: The pulling device has an adjusting device, which can adjust the abutment degree between the pulling device and the torque interrupting device.

5. The digital display torque wrench for mechanically adjusting torque according to claim 3, characterized in that: The main body forms a top side and an oppositely arranged bottom side along the operating axis direction. The shaft is exposed from the top side of the main body for the pivoting of the operating handle. The first force transmission member has a first connecting end and a first pressing portion. The second force transmission member has a second connecting end and a second pressing portion arranged in the sliding member. The second connecting end is movably connected to the first connecting end. In the locked position, the first pressing portion presses against the main body, and the second pressing portion presses against the sliding member.

6. A digital display torque wrench for mechanically adjusting torque according to claim 5, characterized in that: The first force transmission member has a force receiving portion away from the first pressing portion, the operating handle has an eccentric cam, and the locking device includes a force transmission component, which is abutted between the eccentric cam and the force receiving portion. When in the locked position, the eccentric cam applies force to the force transmission component, so that the force transmission component transmits force to the first force transmission member; the sliding member has a first tooth portion arranged along a direction parallel to the axis, and the second force transmission member is provided with a second tooth portion arranged around the operating axis between the second connecting end and the second pressing portion, and the second tooth portion is meshed with the first tooth portion. The force transmission member is rotatably arranged on the main body and the shaft along the operating axis and links the second force transmission member, so that the user rotates the first force transmission member to drive the second force transmission member, so that the second force transmission member drives the sliding member to move relative to the main body. The first force transmission member is provided with a rotating end away from the first connection end, and the rotating end has a first rotation radius. The second force transmission member has a second rotation radius. The second tooth portion is arranged along the second rotation radius, and the first rotation radius is larger than the second rotation radius; the first connection end and the second connection end are connected together in a concave-convex matching manner.

7. The digital display torque wrench for mechanically adjusting torque according to claim 3, characterized in that: It also includes a biasing device, which is arranged between the main body and the sliding member, and applies elastic force to the sliding member along a direction perpendicular to the axis and the operating axis; the biasing device includes a spring sheet, each end of the spring sheet has a hooking portion, and each hooking portion is respectively hooked and connected to the side of the sliding member.

8. The digital display torque wrench for mechanically adjusting torque according to claim 4, characterized in that: The pulling device includes a pulling member and a pressing member, the pulling member is pivoted to the first end, the pulling member has an end extending into the main body, the pressing member is pivoted to the end, the torque interruption device selectively abuts against the pressing member, the special-shaped support section has a curved contact area for the supporting portion to abut, and the special-shaped elastic member is inclined relative to the axis of the main body and is arranged in the main body; when the supporting portion of the torque adjustment device abuts against the curved contact area of ​​the special-shaped elastic member away from the fixed end, the torque setting value is the smallest, and when the supporting portion of the torque adjustment device abuts against the curved contact area of ​​the special-shaped elastic member close to the fixed end, the torque setting value is the largest. ; When the force applied by the digital display torque wrench continues to rise until it is equal to the torque setting value, the torque interruption device can jump out of the pressure piece and interrupt the force applied by the digital display torque wrench; when the digital display torque wrench returns to its natural state, the torque interruption device and the pressure piece can automatically return to their original contact state; the axis divides the body into a forward side and a reverse side, the axis of the special-shaped elastic piece has an inclination angle with the axis, the fixed end of the special-shaped elastic piece is located on the reverse side of the body, and the special-shaped support section of the special-shaped elastic piece can cross the axis of the body and be located on the forward side of the body; the torque interruption device includes a disconnecting piece , the pressing member is abutted against the disconnecting member; when the force applied by the digital display torque wrench continues to rise until it is equal to the torque setting value, the disconnecting member can jump out of the pressing member and interrupt the force applied by the digital display torque wrench; when the digital display torque wrench returns to its natural state, the disconnecting member and the pressing member can automatically restore their original abutting state; a first limiting portion is provided on one side of the end, and the pressing member has a second limiting portion arranged opposite to each other, and the first limiting portion and the second limiting portion 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, and the reset member normally causes the pressing member and the pressing member to be in abutment with each other. The torque interruption device maintains an abutment state, and there is an elastic member between the pull member and the main body, which provides the pull member with a force to restore to a natural state; the adjustment device is arranged between the end and the pressing member, and the adjustment device includes an adjustment member and a nut screwed on one end of the adjustment member, and the other end of the adjustment member is screwed on the end and abuts against the pressing member, and the pressing member has a first abutment portion, and the disconnecting member has a second abutment portion on a side different from the special-shaped elastic member, which is used to abut against the first abutment portion, and the adjustment member can adjust the pivot angle of the pressing member relative to the end, thereby changing the contact area of ​​the first abutment portion against the second abutment portion.

9. The digital display torque wrench for mechanically adjusting torque according to claim 3, characterized in that: The main body forms a top side and an oppositely arranged bottom side along the direction of the operating axis. The shaft is exposed from the bottom side of the main body for the pivoting of the operating handle. The first force transmission member has a first connecting end and a first pressing portion. The second force transmission member has a second connecting end and a second pressing portion arranged in the sliding member. The second connecting end is slidably connected to the first connecting end. In the locked position, the first pressing portion presses against the main body, and the second pressing portion presses against the sliding member.

10. A digital display torque wrench for mechanically adjusting torque according to claim 9, characterized in that: The sliding member has a first tooth portion arranged along a direction parallel to the axis, the first force transmission member has a second tooth portion arranged around the operating axis away from the first pressing portion, the second tooth portion is engaged with the first tooth portion, the first force transmission member is rotatably arranged on the shaft along the operating axis, so that the user can rotate the first force transmission member to drive the sliding member to move relative to the body, the first force transmission member is provided with a rotating end away from the first connecting end, the rotating end has a first rotation radius, and the second tooth portion is arranged along a second The rotation radius is set, and the first rotation radius is larger than the second rotation radius; the operating handle has an eccentric cam, and when in the locked position, the eccentric cam applies force to the second force transmission member, so that the second force transmission member and the first force transmission member are pressed toward each other to clamp the main body and the sliding member; the shaft of the locking device has a threaded portion that passes through the first force transmission member, so that a first screw member and a second screw member are screwed on the threaded portion, and a disc spring is provided between the first screw member and the first force transmission member.

11. The digital display torque wrench for mechanically adjusting torque according to claim 3, characterized in that: It also includes a biasing device, which is arranged between the main body and the sliding member, and applies elastic force to the sliding member along a direction perpendicular to the axis and the operating axis; the biasing device includes a spring sheet, each end of the spring sheet has a hook and fixing portion, and each hook and fixing portion is respectively hooked and connected to the side of the sliding member.

12. The digital display torque wrench for mechanically adjusting torque according to claim 4, characterized in that: The axis divides the body into a forward side and a reverse side, the body has an inner wall, the inner wall is provided with a first inner wall on the reverse side and a second inner wall on the forward side, the pulling device includes a pulling member, a connecting rod and an actuating member, the pulling member is pivoted at the first end, the pulling member is provided with an end, the connecting rod is pivoted at the end, the actuating member is pivoted at the body and can move between a first pivot position and a second pivot position relative to the body, so that the actuating member can form a linkage relationship with the connecting rod; when the actuating member is located at the first pivot position, the actuating member can transmit the reaction force of the pulling device to the special-shaped elastic member; when the torsion is interrupted, the actuating member can transmit the reaction force of the pulling device to the special-shaped elastic member. When the device is disconnected, the transmission of the force applied by the digital display torque wrench is interrupted, and when the actuating member swings to the second pivot position, the actuating member can link the connecting rod to move relative to the body, and at the same time cause the pull member to hit the first inner wall, and the actuating member hits the second inner wall; one side of the end of the pull member has a first impact surface, and a first impact space is formed between the first impact surface and the first inner wall, and one side of the actuating member has a second impact surface, and a second impact space is formed between the second impact surface and the second inner wall; when the torque interruption device disconnects the force applied by the digital display torque wrench, the first impact surface enters the first impact space and The torque interruption device disconnects the force applied by the digital display torque wrench, and the axis line of the connecting rod has a second angle with the axis, and the second impact surface has an impact angle with the axis, and the connecting rod has a first connecting end and an oppositely arranged second connecting end, the first connecting end is pivotally arranged at the end, the second connecting end has a linkage relationship with the actuating member, and the second connecting end of the connecting rod is located on the reverse side; when the torque interruption device disconnects the force applied by the digital display torque wrench, the axis line of the connecting rod has a second angle with the axis, the first angle is greater than the second angle, and the second impact surface has an impact angle with the axis. An angle is greater than the impact angle, and the first connecting end of the connecting rod can cross the axis of the main body and be located on the opposite side of the main body as the second connecting end; the torque interruption device includes a disconnection member, and the pulling device is pivotally provided with a pressing member opposite to the pulling end, one side of the pressing member is in contact with the actuating member, and the other side is abutted and connected to the disconnection member; when the force applied by the digital display torque wrench continues to increase until it equals the torque setting value, the disconnection member can jump out of the pressing member and interrupt the force applied by the digital display torque wrench; when the digital display torque wrench returns to its natural state, the disconnection member and the pressing member can automatically return to their original abutting state;4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The force piece has an inclination angle relative to the body; the special-shaped elastic piece is arranged in the body at an inclination relative to the axis of the body, and the special-shaped support section of the special-shaped elastic piece has a curved contact area; the pulling device also includes two clamping plates, the second connecting end of the connecting rod is pivotally arranged on one side of the two clamping plates, the pressing piece is pivotally arranged on the other side of the two clamping plates, and the actuating piece is two pieces and is superimposed and fixedly connected with the two clamping plates, the actuating piece is provided with a first limiting portion away from the pulling end, the pressing piece has a second limiting portion arranged opposite to each other, the first limiting portion and the second limiting portion can abut against each other to limit the swing amplitude of the pressing piece; a reset piece is provided between the actuating piece and the pressing piece, the reset piece normally keeps the pressing piece and the disconnecting piece in an abutting state, and an elastic piece is provided between the pulling piece and the first inner wall of the body, the elastic piece provides the pulling piece with a force to restore to a natural state.

13. The digital display torque wrench for mechanically adjusting torque according to claim 3, characterized in that: The torque sensing device includes a sensing member and a display, which is electrically connected to the sensing member. The sensing member has a movable part, which is connected to the sliding member and moves with the sliding member, so that the sensing member senses the displacement change of the sliding member and generates a torque signal. The display displays the torque setting value according to the torque signal. The main body has an accommodating space. The main body is provided with a sensing hole connected to the accommodating space at the first end toward the second end. The sensing member senses the displacement change of the sliding member through the sensing hole. The torque sensing device also includes a counter, which can send a counting signal according to the number of times the disconnecting member and the pressing member jump out and display it on the display. The pulling device has a driving head and a pulling member. The pulling member is pivotally arranged at the first end, the pulling end is arranged on the driving head, and the driving head is detachably arranged on the pulling member; the main body also includes a gripping member arranged at the second end.

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