CN112792776B - Preset torque spanner for quick setting torque - Google Patents
Preset torque spanner for quick setting torque Download PDFInfo
- Publication number
- CN112792776B CN112792776B CN202110212727.6A CN202110212727A CN112792776B CN 112792776 B CN112792776 B CN 112792776B CN 202110212727 A CN202110212727 A CN 202110212727A CN 112792776 B CN112792776 B CN 112792776B
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- Prior art keywords
- handle
- rod
- connector
- working head
- butt joint
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- 210000001503 joint Anatomy 0.000 claims description 17
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to the technical field of hand tools, in particular to a preset torque wrench capable of setting torque quickly, which comprises a handle, a main pin, a working head, a connector, a grooved pulley, a push rod, a swing rod, a roller, a pin, a push ring, a spring and a stress application rod. The invention has the following substantial effects: through the decomposition of primary force, the spring is softer, and the force-applying rod can be quickly and easily screwed when the torque is set.
Description
Technical Field
The invention relates to the technical field of manual tools, in particular to a preset torque wrench capable of quickly setting torque.
Background
When the screw fasteners such as screw bolts and nuts are fastened, the applied torque needs to be controlled so as to ensure that the screw threads are fastened and cannot be damaged due to overlarge torque, and ensure that the screw threads are fastened sufficiently. The preset torque wrench is provided with a preset torque value and an acoustic device. When the wrench is used, an upper limit of a required torque value is set, when the applied torque reaches a set value, the wrench can generate a tower clamping sound or bend a bit of angle at the joint of the wrench, and meanwhile, the wrench is accompanied with obvious hand feeling vibration, so that the wrench is fastened without being forced again, and the completion of the work is prompted.
Like chinese patent CN109866154a describes a torque wrench, including spanner head, spanner pole and afterburning loop bar, afterburning loop bar is the cavity casing, and the upper end is equipped with the connection recess, and spanner head and spanner pole are overall structure, and the lower extreme necking down department of spanner head is equipped with the boss, and the connection recess of spanner pole is in the same place through rotation axis swing joint with the boss face of spanner head, still is equipped with steel ball and spring in the afterburning loop bar, and the lower extreme of spanner pole is equipped with the chamfer, chamfer and steel ball surface butt, the lower extreme of steel ball is connected with the spring, and the lower extreme of spring is connected and is adjusted the jackscrew, adjusts jackscrew and afterburning loop bar's lower extreme inner wall threaded connection. When the nut is used, the nut is stretched into the bayonet of the spanner head, the stressing sleeve rod is twisted, when the set torque value is reached, the steel ball touches the inner wall of the stressing sleeve rod and gives out clear signal sound, and the stressing sleeve rod can feel vibration, so that the locking can be stopped. The technical scheme has the following problems: the spanner rod directly acts on the steel balls, so that when the torque is large, the spring needs to apply enough pre-compression force to the steel balls, the elastic coefficient of the spring is large, namely the spring is hard, and the preset torque is laborious.
Disclosure of Invention
The invention aims to solve the technical problems that: the technical problem that the torque setting of the current torque wrench is laborious and inconvenient. A preset torque wrench capable of setting torque quickly is provided.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a preset formula moment of torsion spanner of quick settlement moment of torsion, includes handle, main pin, working head, connector, sheave, ejector pin, pendulum rod, gyro wheel, pin, ejector ring, spring and afterbody of working head rotates with the handle front portion through the main pin and is connected, the handle is hollow, the connector rotates with the working head front portion to be connected, the connector is used for being connected with the tightening piece of tightening the target, the sheave is located the working head, sheave both ends and working head inner wall butt, sheave and the concentric fixed connection of connector, the sheave side distributes along the circumference has the recess, pendulum rod front portion and main pin rotate to be connected, pendulum rod front end and ejector pin fixed connection, the ejector pin with the recess butt, the recess has two separation lines with the contact of ejector pin, two the separation lines are located the one side of the plane that main pin axle center and ejector pin axle center confirm, the pendulum rod afterbody stretches into in the handle, pendulum rod afterbody rotates with the gyro wheel to be connected, the ejector ring and handle inner wall butt and can slide in the gyro wheel, the ejector ring has the recess, the ejector pin has the thread to be located between the thread and the processing of the outer thread, the thread has the thread to match between the ejector pin and the processing. After the connector receives the force transmitted by the tightening object through the tightening piece, the force is decomposed into two component forces through the groove and the ejector rod, one component force is along the connecting line direction of the center of the ejector rod and the center of the main pin, the other component force is along the tangential direction of the main pin, the force along the tangential direction is smaller, the force along the tangential direction enables the swing rod to have a rotating trend, the roller and the ejector ring limit the rotating trend, when the torque received by the tightening object reaches a certain value, the force along the tangential direction enables the swing rod to overcome the limitation of the roller and the ejector ring to rotate, the tail part of the swing rod can impact the inner wall of the handle, and vibration and sound prompt are sent to reach preset torque. Because through the decomposition of primary force, the force that the spring needs to provide reduces by a wide margin, and then makes the spring softer, can be fast and light when setting for the moment of torsion the setting of completion moment of torsion is moved to the screw-up pole.
Preferably, the device further comprises two ejector pins, wherein the two ejector pins are fixedly arranged on two sides of the front end of the ejector ring, and the two ejector pins are in butt joint with the roller. Through two thimble and gyro wheel butt, can improve the matched with precision when top ring and gyro wheel assembly.
Preferably, the novel electric bicycle handle also comprises a handle, wherein the handle is fixedly connected with the tail part of the handle; still include the fixed pin, the sheave passes through fixed pin and connector fixed connection.
Preferably, the front part of the working head is provided with a through hole, the connector is rotationally connected with the through hole, and the connector and the working head form two revolute pairs. The assembly stability of the connector is improved, and the precision of the torque wrench is improved.
Preferably, the novel self-locking handle further comprises a plug, the stress application rod comprises a hand wheel, a center rod and a threaded ring, the hand wheel is fixedly connected with the tail part of the center rod, the threaded ring is fixedly connected with the middle part of the center rod, the threaded ring is provided with external threads matched with internal threads of the handle, the plug is fixedly connected with the tail part of the handle, the plug is provided with an inner hole, and the inner hole is matched with the outer wall of the center rod.
The utility model provides a preset formula moment of torsion spanner of quick settlement moment of torsion, includes handle, king pin, working head, connector, sheave, ejector pin, pendulum rod, gyro wheel, pin, jack ring, spring, pointer, screw rod, pointer sleeve, hand wheel and end cap, the afterbody of working head is through the king pin with handle front portion rotation be connected, the handle is hollow, the connector rotates with the working head front portion and is connected, the connector is used for with tightening the piece of tightening the target and is connected, the sheave is located the working head, sheave both ends and working head inner wall butt, sheave and the concentric fixed connection of connector, the sheave side distributes along the circumference has the recess, pendulum rod front portion and king pin rotate to be connected, pendulum rod front end and ejector pin fixed connection, the ejector pin with recess butt, the recess with the contact of ejector pin has two separation lines, two the separation lines are located the one side of the plane that king pin axle center and ejector pin axle center confirm, the afterbody stretches into the handle in, pendulum rod and rotation are connected, jack ring and handle inner wall butt and can be followed the axial direction, the pointer sleeve joint has the pointer, the pointer has the jack ring to slide along the axial direction, pointer sleeve is connected with the handle, the end cap has the thread to be connected with the screw rod, the end cap has the thread to be connected with the handle, the thread sleeve.
The invention has the following substantial effects: when the torque received by the tightening target reaches a certain value, the force along the tangential direction enables the swing rod to overcome the limitation of the roller and the top ring, and when the swing rod rotates, the tail of the swing rod can strike the inner wall of the handle, and vibration and sound prompt are sent out to reach the preset torque.
Drawings
Fig. 1 is a schematic diagram of a torque wrench according to an embodiment.
Fig. 2 is a schematic cross-sectional structure of a torque wrench according to an embodiment.
Fig. 3 is a schematic diagram of a sheave structure according to an embodiment.
Fig. 4 is a schematic cross-sectional top view of a torque wrench according to an embodiment.
FIG. 5 is a schematic diagram showing the force applied to a carrier rod according to an embodiment.
FIG. 6 is a schematic view of a force lever structure according to an embodiment.
Fig. 7 is a schematic view showing that the ejector rod and the grooved pulley are separated from contact in the embodiment.
Fig. 8 is a schematic cross-sectional structure of a torque wrench according to the second embodiment.
Wherein: 1. the device comprises a force application rod, 2, a handle, 3, a handle, 4, a main pin, 5, a hand wheel, 6, a plug, 7, a working head, 8, a connector, 9, a top ring, 10, a threaded ring, 11, a spring, 12, a pin, 13, a roller, 14, a swing rod, 15, a top rod, 16, a grooved pulley, 17, a thimble, 18, a fixed pin, 19, a pointer, 20, a pointer groove, 21, a screw, 22 and a pointer sleeve.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Embodiment one:
referring to fig. 1 to 4, the embodiment comprises a handle 3, a main pin 4, a working head 7, a connector 8, a grooved pulley 16, a push rod 15, a swinging rod 14, a roller 13, a pin 12, a top ring 9, a spring 11 and a stress application rod 1, wherein the tail of the working head 7 is rotationally connected with the front part of the handle 3 through the main pin 4, the handle 3 is hollow, the connector 8 is rotationally connected with the front part of the working head 7, the connector 8 is used for being connected with a tightening piece of a tightening target, the grooved pulley 16 is positioned in the working head 7, two ends of the grooved pulley 16 are in contact with the inner wall of the working head 7, the grooved pulley 16 is concentrically and fixedly connected with the connector 8, grooves are distributed on the side surface of the grooved pulley 16, the front part of the swinging rod 14 is rotationally connected with the main pin 4, the front end of the swinging rod 14 is fixedly connected with the push rod 15, the push rod 15 is in contact with the grooves, the grooves are in contact with the push rod 15, the two separation lines are positioned on one side of a plane defined by the axis of the main pin 4 and the axis of the push rod 15, the tail of the 14 is stretched into the handle 3, is rotationally connected with the roller 13, the inner wall of the handle 9 is in contact with the roller 13, the inner wall of the handle 3 is in contact with the push rod 1, the inner wall is in contact with the push rod 1, the axial threads are in contact with the push rod 1, the push rod is in contact with the push rod 1, the push rod 1 is in contact with the push rod, and the push rod 1 is in contact with the push rod 15, and the push rod has a thread. Referring to fig. 6, two ejector pins 17 are fixedly mounted on two sides of the front end of the ejector ring 9, and both the ejector pins 17 are abutted with the roller 13. The grip 2 is fixedly connected with the tail part of the handle 3; also comprises a fixing pin 18, and the grooved pulley 16 is fixedly connected with the connector 8 through the fixing pin 18. The stressing rod 1 comprises a hand wheel 5, a central rod and a threaded ring 10, wherein the hand wheel 5 is fixedly connected with the tail part of the central rod, the threaded ring 10 is fixedly connected with the middle part of the central rod, the threaded ring 10 is provided with external threads matched with internal threads of the handle 3, the plug 6 is fixedly connected with the tail part of the handle 3, and the plug 6 is provided with an inner hole which is matched with the outer wall of the central rod. The front portion of the working head 7 is provided with a through hole, the connector 8 is rotationally connected with the through hole, and the connector 8 and the working head 7 form two revolute pairs.
After the connector 8 receives the force transmitted by the tightening object through the tightening piece, the force is decomposed into two component forces through the groove and the ejector rod 15, please refer to fig. 5, one component force is along the connecting line direction Fs between the center of the ejector rod 15 and the center of the main pin 4, the other component force is along the tangential direction Fg of the main pin 4, the force along the tangential direction is smaller, the force along the tangential direction makes the swinging rod 14 have a rotating trend, the roller 13 and the top ring 9 limit the rotating trend, when the torque received by the tightening object reaches a certain value, the force along the tangential direction makes the swinging rod 14 rotate against the limitation of the roller 13 and the top ring 9, the tail part of the swinging rod 14 can strike the inner wall of the handle 3, and vibration and sound prompt are sent to reach the preset torque. Because the force required to be provided by the spring 11 is greatly reduced through the decomposition of primary force, the spring 11 is softer, and the force bar 1 can be quickly and easily screwed to complete the torque setting when the torque is set.
Referring to fig. 7, when the handle 3 is pulled in reverse direction, the ejector rod 15 is separated from the sheave 16, so that the sheave 16 and the connector 8 can rotate freely relative to the working head 7, and when the target screw is screwed, the handle 3 can be directly pulled in reverse direction without separating the wrench from the target screw, thereby accelerating the screw screwing efficiency and achieving the effect similar to a ratchet wrench.
The beneficial technical effects of this embodiment are: when the torque received by the tightening target reaches a certain value, when the swing rod 14 rotates against the limitation of the roller 13 and the top ring 9 by force along the tangential direction, the tail of the swing rod 14 can strike the inner wall of the handle 3, and vibration and sound are sent to prompt that the preset torque is reached, and the spring 11 is softer by one-time force decomposition, so that the stress application rod 1 can be quickly and easily screwed when the torque is set.
Embodiment two:
Referring to fig. 8, the embodiment comprises a handle 3, a main pin 4, a working head 7, a connector 8, a grooved pulley 16, a push rod 15, a swing rod 14, a roller 13, a pin 12, a top ring 9, a spring 11, a pointer 19, a screw rod 21, a pointer sleeve 22, a hand wheel 5 and a plug 6, wherein the tail of the working head 7 is rotationally connected with the front part of the handle 3 through the main pin 4, the handle 3 is hollow, the connector 8 is rotationally connected with the front part of the working head 7, the connector 8 is used for being connected with a tightening piece for tightening a target, the grooved pulley 16 is positioned in the working head 7, two ends of the grooved pulley 16 are in butt joint with the inner wall of the working head 7, the grooved pulley 16 is fixedly connected with the connector 8 in a concentric manner, grooves are distributed on the side surface of the grooved pulley 16 along the circumference, the front part of the swing rod 14 is rotationally connected with the main pin 4, the front end of the push rod 15 is in butt joint with the grooves, the grooves are in contact with the push rod 15, the two separation lines are positioned on one side of a plane defined by the axes of the main pin 4 and the axis 15, the tail of the tail 14 extends into the roller 3, the roller 13 is rotationally connected with the top ring 9 and the inner wall of the handle 7, the pointer sleeve 21 is in butt joint with the inner wall of the hand rod 4, the pointer sleeve 20 is in butt joint with the thread sleeve 20, the pointer sleeve 20 is in butt joint with the thread groove 20, the thread sleeve 20 is fixedly connected with the tail of the pointer sleeve 20, and the pointer sleeve 20 is in the thread sleeve 20, the thread sleeve is fixedly connected with the tail of the handle 9. The rest of the structure is the same as that of the first embodiment.
The above embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (7)
1. A preset torque wrench for quickly setting torque is characterized in that,
Comprises a handle, a main pin, a working head, a connector, a grooved pulley, a push rod, a swing rod, a roller, a pin, a push ring, a spring and a stress application rod,
The tail of the working head is rotationally connected with the front part of the handle through a main pin, the handle is hollow, the connector is rotationally connected with the front part of the working head, the grooved pulley is positioned in the working head, two ends of the grooved pulley are in butt joint with the inner wall of the working head, the grooved pulley is concentrically and fixedly connected with the connector, grooves are distributed on the side face of the grooved pulley along the circumference, the front part of the swing rod is rotationally connected with a main pin, the front end of the swing rod is fixedly connected with a push rod, the push rod is in butt joint with the grooves, the tail of the swing rod stretches into the handle, the swing rod is rotationally connected with a roller, the top ring is in butt joint with the inner wall of the handle and can slide in the handle, the roller is in butt joint with the top ring, the inner wall of the tail of the handle is provided with internal threads, the stress application rod is provided with external threads matched with the internal threads, the spring is positioned between the stress application rod and the top ring, and scale marks are processed on the stress application rod.
2. A preset torque wrench for quickly setting torque according to claim 1,
The two ejector pins are fixedly arranged on two sides of the front end of the ejector ring and are in butt joint with the idler wheels.
3. A preset torque wrench for rapidly setting torque according to claim 1 or 2,
The handle is fixedly connected with the tail part of the handle; still include the fixed pin, the sheave passes through fixed pin and connector fixed connection.
4. A preset torque wrench for rapidly setting torque according to claim 1 or 2,
The front part of the working head is provided with a through hole, the connector is rotationally connected with the through hole, and the connector and the working head form two revolute pairs.
5. A preset torque wrench for rapidly setting torque according to claim 1 or 2,
Still include the end cap, the afterbody fixed connection is held with center pole to afterbody including hand wheel, center pole and screwed ring to the afterbody of afterbody, screwed ring and center pole middle part fixed connection, the screwed ring have with the internal thread complex external screw thread of handle, end cap and handle afterbody fixed connection, the end cap has the hole, the hole matches with center pole outer wall.
6. A preset torque wrench for quickly setting torque is characterized in that,
Comprises a handle, a main pin, a working head, a connector, a grooved pulley, a push rod, a swing rod, a roller, a pin, a top ring, a spring, a pointer, a screw rod, a pointer sleeve, a hand wheel and a plug,
The tail of the working head is rotationally connected with the front part of the handle through a main pin, the handle is hollow, the connector is rotationally connected with the front part of the working head, the connector is connected with a tightening piece for tightening a target, the grooved pulley is positioned in the working head, two ends of the grooved pulley are in butt joint with the inner wall of the working head, the grooved pulley is fixedly connected with the connector in a concentric manner, grooves are distributed on the side face of the grooved pulley along the circumference, the front part of the swinging rod is rotationally connected with the main pin, the front end of the swinging rod is fixedly connected with the ejector rod, the ejector rod is in butt joint with the grooves, the tail part of the swinging rod stretches into the handle, the swinging rod is rotationally connected with the roller, the ejector ring is in butt joint with the inner wall of the handle and can axially slide along the handle, the roller is in butt joint with the ejector ring, a pointer groove is processed in the middle of the handle, the pointer sleeve is sleeved in the handle, the spring is positioned between the pointer sleeve and the ejector ring, the pointer is connected with the pointer sleeve, scale marks are processed on two sides of the pointer groove, the pointer sleeve is processed with the inner threads, the pointer sleeve is connected with the tail part of the screw rod, and the screw rod is fixedly connected with the screw rod, and the screw rod is in butt joint with the tail part.
7. The quick torque setting preset torque wrench of claim 6, wherein,
The two ejector pins are fixedly arranged on two sides of the front end of the ejector ring, and both the ejector pins are in butt joint with the idler wheels;
the handle is fixedly connected with the tail part of the handle; the sheave is fixedly connected with the connector through the fixing pin;
The front part of the working head is provided with a through hole, the connector is rotationally connected with the through hole, and the connector and the working head form two revolute pairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212727.6A CN112792776B (en) | 2021-02-25 | 2021-02-25 | Preset torque spanner for quick setting torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212727.6A CN112792776B (en) | 2021-02-25 | 2021-02-25 | Preset torque spanner for quick setting torque |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112792776A CN112792776A (en) | 2021-05-14 |
| CN112792776B true CN112792776B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110212727.6A Active CN112792776B (en) | 2021-02-25 | 2021-02-25 | Preset torque spanner for quick setting torque |
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| Country | Link |
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| CN (1) | CN112792776B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172576A (en) * | 2021-03-28 | 2021-07-27 | 杭州倍力耐工具有限公司 | Preset torque wrench with rear reading |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165964Y (en) * | 1993-03-27 | 1994-05-25 | 姚铁章 | Free-reverse drive type monkey-spanner |
| JP3545811B2 (en) * | 1994-09-21 | 2004-07-21 | 株式会社東日製作所 | Torque Wrench |
| US5497682A (en) * | 1995-07-10 | 1996-03-12 | Hsu; Frank | Torsion wrench |
| US6526853B2 (en) * | 2001-01-31 | 2003-03-04 | Bradley G. Jenkins | Electromechanical releasing torque wrench |
| FR2841491B1 (en) * | 2002-06-28 | 2005-01-28 | Facom | TOOL, IN PARTICULAR KEY, DYNAMOMETRIC COMPRISING CLICKING MEANS FOR ADJUSTING THE TORQUE |
| US7194934B2 (en) * | 2005-05-23 | 2007-03-27 | Custom Spine, Inc. | Ratcheting torque wrench |
| US7228764B1 (en) * | 2005-12-31 | 2007-06-12 | Proprietary Technologies, Inc. | Maximum engagement wrench |
| CN100569454C (en) * | 2008-02-01 | 2009-12-16 | *** | Single direction ratchet mechanism |
| US8443702B2 (en) * | 2009-04-16 | 2013-05-21 | Tohnichi Mfg. Co. Ltd. | Torque wrench |
| JP3156952U (en) * | 2009-10-16 | 2010-01-28 | 特典工具有限公司 | Torque spanner structure that is accurate in setting, easy to read, prevents erroneous contact, and can hold the torque value reliably |
| CN201573158U (en) * | 2009-10-22 | 2010-09-08 | 特典工具有限公司 | Torque wrench |
| TWI555610B (en) * | 2014-05-16 | 2016-11-01 | 國立高雄應用科技大學 | Digital torque wrench |
| DE202017101615U1 (en) * | 2017-03-20 | 2017-04-19 | William Tools Co., Ltd. | torque wrench |
| US11440169B2 (en) * | 2017-10-27 | 2022-09-13 | Gauthier Biomedical, Inc. | Torque limiting ratchet wrench |
| CN109866154A (en) * | 2017-12-01 | 2019-06-11 | 济宁新信意信息科技有限公司 | A kind of torque wrench |
| CN108747926A (en) * | 2018-07-22 | 2018-11-06 | 徐州丹奕工程科技有限公司 | A kind of Multifunctional hardware spanner with torque instruction |
| CN211841728U (en) * | 2019-12-26 | 2020-11-03 | 天泽电力(江苏)有限公司 | Fixed-torque ratchet wrench |
| CN112338849B (en) * | 2020-11-03 | 2024-08-06 | 杭州倍力耐工具有限公司 | Use convenient preset formula moment of torsion spanner |
-
2021
- 2021-02-25 CN CN202110212727.6A patent/CN112792776B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172576A (en) * | 2021-03-28 | 2021-07-27 | 杭州倍力耐工具有限公司 | Preset torque wrench with rear reading |
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| CN112792776A (en) | 2021-05-14 |
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