CN110774209B - Torque force adjusting and locking structure of torque wrench - Google Patents
Torque force adjusting and locking structure of torque wrench Download PDFInfo
- Publication number
- CN110774209B CN110774209B CN201810855421.0A CN201810855421A CN110774209B CN 110774209 B CN110774209 B CN 110774209B CN 201810855421 A CN201810855421 A CN 201810855421A CN 110774209 B CN110774209 B CN 110774209B
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- 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
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a torsion adjusting and locking structure of a torque wrench, which comprises a main pipe, a torsion adjusting assembly, a screw guide piece, a screw rod, a rotating piece and a spring, wherein the main pipe is provided with a pipe hole communicated with two ends, the torsion adjusting assembly is arranged in the pipe hole and comprises a screw guide piece, a screw rod of the screw guide piece in a screw group, the screw rod is provided with a locking bolt penetrating out of the rotating piece, the screw rod of a limiting guide sleeve is arranged in the pipe hole, the rotating group comprises a rotating pipe and a fixed screw piece, an internal thread section and a set section are arranged at two ends in the rotating pipe, the rotating pipe drives the rotating piece and the screw rod combined with the rotating piece to spirally rotate relative to the screw guide piece and axially advance and retreat in the pipe hole so as to adjust torsion, the locking screw piece and the locking bolt screw group penetrating out of the rotating piece push a plurality.
Description
Technical Field
The present invention relates to a locking structure for a torque wrench, and more particularly, to a locking structure for locking a torque setting adjusted before a torque wrench is used, so as to prevent an original set torque value from being shifted in scale due to collision, and prevent an operation error due to an excessively high or excessively low torque value.
Background
The wrench is generally provided with a head part at the front end of a grab handle, which can be embedded and clamped with the screw fastener and is used for wrenching the screw fastener, so that the torque is generated by applying force to the grab handle to drive the head part to screw the screw fastener into an object, thereby achieving the effect of screwing or unscrewing.
The most important problem of the wrench tool in operation and use is that the user is not easy to hold the tightness of the fastener to be tightened, and the conventional general wrench tool has no torque measuring device and cannot accurately measure the torque and the tightness of the hand tool to the fastener to be tightened, so that the user cannot confirm whether the tightness of the operated fastener is proper or not. The operation rule of "locking to the bottom and then rotating 1/4 circles" can be obtained only by the prior experience, i.e. the prior experience can be used to judge according to the screwing torque specification of various machines and tools; the screwing torque of the screw is prevented from being damaged by the excessive torque, and the screwing torque of the screw is difficult to accurately control by using the conventional wrench tool. Related manufacturers have introduced torque wrench tools with torque adjustment capability to address this need.
The torque wrench is also called torque wrench or torque wrench, the torque is the product of force and distance, when fastening screw fasteners such as screw, bolt, nut and the like, the magnitude of the applied torque needs to be controlled to ensure the screw fastening and prevent the screw from being damaged due to overlarge torque, so when the torque wrench is used for operation, a required upper limit of the torque value needs to be set, when the applied torque reaches a set value, the torque wrench can make a 'tower clamping' sound, which represents that the fastening is performed. The torque wrench can tightly lock the screw, nut, etc. of the related parts with threads without exceeding the upper limit of the load of the threads, please refer to taiwan patent publication No. I318917 "torque wrench structure".
However, the torque adjustment setting of the torque wrench before use often causes the torque value to be too high or too low due to scale deviation caused by various factors or collision during operation, which causes the thread of the operated screw to be deformed or damaged, and seriously affects the operation of the assembled machine.
Therefore, it is a difficult point to solve the problem of how to improve the present invention in view of the disadvantages that the torque setting adjusted before the use of the torque wrench cannot be locked by the conventional torque wrench structure, and the operation quality is affected due to the over-high torque value and the low abrasion of the torque value caused by various factors or scale deviation caused by collision of the outer tube during the operation process.
Disclosure of Invention
The main technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and to provide a torque adjustment locking structure for a torque wrench, which locks the torque setting adjusted by the torque wrench before use, effectively avoids the over-high or low torque value caused by the scale deviation of the originally set torque value due to collision, stably provides accurate operation torque, effectively avoids the defective rate and the defective product loss caused by the operation of the wrong torque, and has better use progress.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a torsion adjusting and locking structure of a torsion wrench comprises a main pipe, a driving head and an axial guide hole, wherein the main pipe is provided with a pipe hole communicated with two ends, the driving head is assembled at one end of the pipe hole, and the axial guide hole is positioned at the opposite end and penetrates through the pipe wall and is communicated with the pipe hole.
The torsion adjusting assembly is arranged in the pipe hole of the main pipe and comprises a spiral guide piece fixedly arranged on the inner wall of the pipe hole, a screw rod spirally combined with the spiral guide piece, a rotating piece and a spring, wherein one end of the screw rod is provided with a pushing head part facing to the driving head, the opposite end of the screw rod extends out of the pipe hole and is combined with the rotating piece, the screw rod is provided with a locking bolt penetrating out of the rotating piece, the rotating piece is provided with an outer group of threads positioned on the outer peripheral side and a plurality of locking bolts axially penetrating and arranged, the locking bolts have lengths capable of protruding out of two ends of the rotating piece, and two ends of the spring respectively abut against the driving head and the pushing head.
The screw rod is sleeved with the limiting guide sleeve, the limiting guide sleeve is located between the screw guide piece and the rotating piece, the limiting guide sleeve abuts against one side of the rotating piece and can be opposite to the locking bolts, a guide pin which radially protrudes out of the outer peripheral side is combined with the limiting guide sleeve, and the guide pin penetrates through the axial guide hole of the main pipe to limit the limiting guide sleeve to be incapable of radially rotating.
The rotating assembly comprises a rotating pipe and a fixed screw, an internal thread section and a set of assembly sections are arranged in the rotating pipe, the internal thread section is screwed with one end of an external set thread of the rotating part, the set of assembly sections are sleeved on the outer peripheral side of the main pipe, and the fixed screw is screwed with the other end of the external set thread of the rotating part and is pressed against the rotating pipe.
And a locking screw and a locking bolt screw group penetrating out of the rotating piece, wherein the locking screw rotates and moves back and is driven by the rotating pipe to rotate relative to the screw guide piece, the rotating piece and the screw are driven by the rotating pipe to move forward and backward and are close to or far away from the driving head, the pushing head part changes the pressure of the compression spring to form torque force adjustment, the rotating piece drives the limiting guide sleeve to move axially and changes the position of the guide pin in the axial guide hole, and the locking screw rotates to be pressed and pushes the plurality of locking bolts to be pressed against the limiting guide sleeve to be fixed so as to lock the torque wrench and cannot adjust the torque force.
The invention is further technically characterized in that the screw guide piece is positioned between the driving head and the axial guide hole, the pushing head part of the screw rod is positioned between the screw guide piece and the spring, and the rotating piece is positioned between the limiting guide sleeve and the locking screw piece.
The invention is further technically characterized in that a plurality of caulking grooves are arranged at intervals on the outer peripheral side of the screw guide piece, and the main pipe is provided with a plurality of fixing pins corresponding to the plurality of caulking grooves.
The invention is further technically characterized in that the limiting guide sleeve is provided with two side guide sheets which axially extend and extend into the pipe hole and are positioned at two sides of the opposite screw rod, and the guide pin is convexly arranged at the peripheral side of one side guide sheet.
The present invention is further technically characterized in that the outer surface of the main pipe is provided with a plurality of torsion scales between the driving head and the axial guide hole, and the rotating pipe drives the rotating piece and the screw rod to axially advance and retreat relative to the screw guide piece so as to correspond to one of the torsion scales, so as to correspondingly display the numerical value of the torsion adjustment.
The present invention is further technically characterized in that one end of the rotating member is concavely provided with a step-shaped ring groove, and the other end is provided with a plurality of pin holes which are communicated with the step-shaped ring groove and provide for each locking bolt to penetrate through.
The present invention is further technically characterized in that the locking screw is provided with an internal thread hole and a butting part which butts against each locking bolt, the internal thread hole is screwed with the locking bolt, the butting part enters the stepped annular groove and is pressed against one end of each locking bolt, and the other end of each locking bolt extends out of the rotating part and is pressed against the limiting guide sleeve, so that the limiting guide sleeve and the combined torsion adjusting set are locked and can not rotate and move.
The invention has the advantages that the torque setting adjusted by the torque wrench before use is locked, thereby effectively avoiding overhigh or lower torque value caused by scale deviation of the original set torque value due to collision, stably providing accurate operation torque, effectively avoiding reject ratio and defective product loss caused by wrong torque operation, and having better use progress.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective exploded view of the present invention.
FIG. 3 is a schematic cross-sectional view of the line III-III shown in FIG. 1.
Figure 4 is a schematic cross-sectional view taken along line vi-vi of figure 1.
Fig. 5 is an operational view of the unscrewing locking screw according to the present invention.
FIG. 6 is a cross-sectional view illustrating a torque adjustment operation according to the present invention.
FIG. 7 is a cross-sectional view illustrating the torque adjustment operation of the present invention.
FIG. 8 is a cross-sectional view of the rear combination locking screw for performing the torque adjustment operation of the present invention.
FIG. 9 is a cross-sectional view of the present invention after completing the torque adjustment operation and locking with the locking screw.
The reference numbers in the figures illustrate:
10 main pipe and 11 pipe holes
12 drive head 13 axial guide hole
14 fixed pin 15 torque scale
20 torsion adjusting group 21 screw guide
211 caulking groove 22 screw rod
221 ejector head 222 locking bolt
23 rotating part 231 external set screw thread
232 locking bolt 233 step-shaped ring groove
234 pinhole 24 spring
30 limiting guide sleeve 31 side guide sheet
32 guide pin 40 rotating group
41 rotating pipe 411 internal thread section
412 sets of assembly segments 42 securing screws
50 locking screw 51 internal thread hole
52 butting part
Detailed Description
Referring to fig. 1 to 7, a torque adjusting and locking structure of a torque wrench according to the present invention includes: a main tube 10 is a circular tube structure and has a tube hole 11 communicating with two ends, the main tube 10 has a driving head 12 assembled at one end of the tube hole 11 and an axial guide hole 13 located at the opposite end penetrating the tube wall and communicating with the tube hole 11, the driving head 12 is used to assemble related parts such as a sleeve and the like and to drive the locking of a screw and a nut.
The torsion adjusting set 20 is installed in the tube hole 11 of the main tube 1, and includes a screw guide 21 fixed on the inner wall of the tube hole 11, a screw rod 22 spirally assembled with the screw guide 21, a rotating member 23, and a spring 24, one end of the screw rod 22 has a pushing head 221 facing the driving head 12 and the opposite end extending out of the tube hole 11 and combining with the rotating member 23, and the screw rod 22 has a locking bolt 222 penetrating out of the rotating member 23, the rotating member 23 has an outer group thread 231 located on the outer periphery side and a plurality of locking bolts 232 axially penetrating through the outer group thread and the locking bolts 232 have lengths capable of protruding out of the two ends of the rotating member 23, and the two ends of the spring 24 respectively push against the driving head 12 and the pushing head 221.
A limit guide sleeve 30 is sleeved on the screw 22 and located between the screw guide 21 and the rotating member 23, the limit guide sleeve 30 abuts against one side of the rotating member 23 and is opposite to the locking bolts 232, the limit guide sleeve 30 is combined with a guide pin 32 radially protruding on the outer peripheral side, and the guide pin 32 penetrates through the axial guide hole 13 of the main pipe 10 to limit the limit guide sleeve 30 from radially rotating.
A rotating set 40 includes a rotating tube 41 and a fixed screw 42, the rotating tube 41 has an internal thread section 411 and a set section 412 at two ends, the internal thread section 411 is screwed to one end of the external thread 231 of the rotating member 23 and the set section 412 is sleeved to the outer periphery of the main tube 10, the fixed screw 42 is screwed to the other end of the external thread 231 of the rotating member 23 and is forced to abut against the rotating tube 41.
And a locking screw 50 and a locking bolt 222 threaded through the rotating member 23, wherein the locking screw 50 is loosened and retracted by rotation and the rotating tube 41 drives the rotating member 23 and the screw 22 combined with the rotating member 23 to rotate relative to the screw guide member 21, and the rotating member 23 and the screw 22 advance and retreat in a screw manner and move close to or away from the driving head 12, the pushing head 221 changes the pressure of the compression spring 24 to form torque force adjustment, the rotating member 23 drives the limiting guide sleeve 30 to move axially and changes the position of the guide pin 31 in the axial guide hole 13, and the locking screw 50 is rotated to press and push the plurality of locking bolts 232 to press and fix the limiting guide sleeve 30 so as to lock the torque wrench and prevent the torque force from being adjusted.
In the following, the features of the components of the present invention are further described in detail, in the above-mentioned fig. 1 to 7, the screw guide 21 is located between the driving head 12 and the axial guiding hole 13, the pushing head 221 of the screw 22 is located between the screw guide 21 and the spring 24, and the rotation member 23 is located between the limit guide sleeve 30 and the locking screw 50. Next, a plurality of caulking grooves 211 are formed at intervals on the outer peripheral side of the screw guide 21, and a plurality of fixing pins 14 are provided on the main pipe 10 corresponding to the plurality of caulking grooves 211. Furthermore, the limiting guide sleeve 30 has two side guide pieces 31 extending axially and extending into the tube hole 11 and located at two sides of the screw 22, and the guide pin 32 is protruded from the outer periphery of one of the side guide pieces 31. Furthermore, the outer surface of the main tube 10 is provided with a plurality of torsion scales 15 located between the driving head 12 and the axial guiding hole 13, and the rotating tube 41 drives the rotating member 23 and the screw rod 22 to move axially relative to the screw guide member 21 and back corresponding to one of the torsion scales 15 for correspondingly displaying the torsion adjustment value. In addition, a stepped ring groove 233 is concavely formed at one end of the rotating member 23, and a plurality of pin holes 234 are formed at the other end of the rotating member, wherein the plurality of pin holes 234 are communicated with the stepped ring groove 233 and provide for each locking pin 232 to penetrate. Finally, the locking screw 50 is provided with an internal threaded hole 51 and a top 52 abutting against each locking bolt 232, the internal threaded hole 51 is screwed with the locking bolt 222, the top 52 enters the stepped annular groove 233 and is pressed against one end of each locking bolt 232, and the other end of each locking bolt 232 extends out of the rotating member 23 and is pressed against the limiting guide sleeve 30, so that the limiting guide sleeve 30 and the combined torsion adjusting assembly 20 are locked and cannot rotate or move.
In fig. 3 and 4, the torsion adjusting assembly 20 of the present invention includes a screw guide 21 fixed on the inner wall of the main pipe 10 in the pipe hole 11, a rotating member 23, a spring 24, and a screw 22 screwing the screw guide 21, wherein both ends of the spring 24 respectively abut against the pushing head 221 of the screw 22 and the driving head 12 (see fig. 1 and 2) (wherein the spring 24 abuts against the driving head 12 is prior art, and other related components can be used between the driving head 12 and the spring 24, which is not used to limit the technical features thereof). A limit guide sleeve 30 is matched to be sleeved on the screw rod 22 in the pipe hole 11, and a rotating group 40 is combined. Then, a locking screw 50 is screwed with the locking bolt 222 penetrating the rotating member 23, and the locking screw 50 pushes the plurality of locking bolts 232 to urge against the position-limiting guide sleeve 30 for locking.
As shown in fig. 4 to 7, after the locking screw 50 is unscrewed in the direction of the arrow in fig. 5 to release the urging and locking of the plurality of locking pins 232 to the position-limiting guide sleeve 30, the rotation tube 41 is rotated to drive the fixed screw 42 and the rotation member 23 to rotate in the direction of the dotted arrow in the figure, and further the rotation member 23 and the combined screw 22 are driven to rotate spirally relative to the screw guide member 21 and move axially in the tube hole 11 of the main tube 10 as shown in the arrow in fig. 6, which is shown to approach toward the driving head 12 and move to the position in fig. 7, so as to change the pressure of the pushing head 221 compressing spring 24 to achieve the torque adjusting operation of the wrench, and at the same time, the position-limiting guide sleeve 30 is driven by the rotation member 23 to move axially in the tube hole 11 and change the position of the guide pin.
Next, as shown in fig. 8 and 9 (with reference to fig. 4), when the locking screw 50 is rotated in the direction of the arrow in the figure, the internal threaded hole 51 thereof is screwed relatively to the locking bolt 222 to be screwed toward the direction of the rotating member 23, and the abutting portion 52 enters the stepped annular groove 233 and is pressed against the protruding end of each locking bolt 232, so that the other end of each locking bolt 232 extends out of the rotating member 23 and is pressed against the position-limiting guide sleeve 30, as shown in fig. 9 and 4, the position-limiting guide sleeve 30 and the combined torsion adjusting set 20 are rotated and moved normally to lock the original torsion adjusting setting state.
The present invention locks the torque setting adjusted before the torque wrench is used, and can actually break through the dilemma and the disadvantages faced in the development of the torque adjustment technique of the current torque wrench, so as to achieve the following advantages:
1. prevent the over-high or low torque value caused by the scale deviation of the originally set torque value due to various factors or external collision in the operation process, and stably provide accurate operation torque.
2. Effectively avoid the defective rate and defective product loss of the assembled finished product caused by the operation of wrong torque force, and achieve better use progress.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (7)
1. A torque adjustment locking structure of a torque wrench, comprising:
a main pipe is provided with a pipe hole communicated with the two ends, the main pipe is provided with a driving head assembled at one end of the pipe hole, and an axial guide hole which is positioned at the opposite end and penetrates through the pipe wall and is communicated with the pipe hole;
the torsion adjusting assembly is arranged in the pipe hole of the main pipe and comprises a spiral guide piece fixedly arranged on the inner wall of the pipe hole, a screw rod spirally combined with the spiral guide piece, a rotating piece and a spring, wherein one end of the screw rod is provided with a pushing head part facing to the driving head, the opposite end of the screw rod extends out of the pipe hole and is combined with the rotating piece, the screw rod is provided with a locking bolt penetrating out of the rotating piece, the rotating piece is provided with an outer group of threads positioned on the outer peripheral side and a plurality of locking bolts axially penetrating and arranged, the locking bolts have lengths capable of protruding out of two ends of the rotating piece, and two ends of the spring respectively abut against the driving head and the pushing head;
a limit guide sleeve is sleeved on the screw rod and positioned between the screw guide piece and the rotating piece, the limit guide sleeve abuts against one side of the rotating piece and can be opposite to the plurality of locking bolts, a guide pin which radially and convexly extends out of the peripheral side is combined with the limit guide sleeve, and the guide pin penetrates through the axial guide hole of the main pipe to limit the limit guide sleeve from radially rotating;
the rotating assembly comprises a rotating pipe and a fixed screw part, an internal thread section and a set of assembly sections are arranged in the rotating pipe, the internal thread section is screwed on one end of an external set thread of the rotating part, the set of assembly sections are sleeved on the outer peripheral side of the main pipe, and the fixed screw part is screwed on the other end of the external set thread of the rotating part and is pressed against the rotating pipe;
and a locking screw and a locking bolt screw group penetrating out of the rotating piece, wherein the locking screw rotates and moves back and is driven by the rotating pipe to rotate relative to the screw guide piece, the rotating piece and the screw are driven by the rotating pipe to move forward and backward and are close to or far away from the driving head, the pushing head part changes the pressure of the compression spring to form torque force adjustment, the rotating piece drives the limiting guide sleeve to move axially and changes the position of the guide pin in the axial guide hole, and the locking screw rotates to be pressed and pushes the plurality of locking bolts to be pressed against the limiting guide sleeve to be fixed so as to lock the torque wrench and cannot adjust the torque force.
2. The torque adjusting locking structure of a torque wrench as claimed in claim 1, wherein the screw guide is located between the driving head and the axial guiding hole, the pushing head of the screw is located between the screw guide and the spring, and the rotation member is located between the limit guide sleeve and the locking screw.
3. The torque adjusting and locking structure of a torque wrench as claimed in claim 1, wherein the screw guide member has a plurality of slots spaced apart from each other on the outer peripheral side thereof, and the main tube has a plurality of fixing pins corresponding to the plurality of slots.
4. The torque adjusting locking structure of a torque wrench as claimed in claim 3, wherein the limiting guide sleeve has two side guide pieces extending axially and into the tube hole and located at two sides of the opposite screw, and the guide pin is protruded from an outer peripheral side of one of the side guide pieces.
5. The torque adjusting and locking structure of a torque wrench as claimed in any one of claims 1 to 4, wherein the outer surface of the main tube is provided with a plurality of torque scales located between the driving head and the axial guiding hole, and the rotating tube drives the rotating member and the screw rod to move axially forward and backward relative to the screw guide member corresponding to one of the torque scales for displaying the torque adjusting value.
6. The torque adjusting locking structure of a torque wrench as claimed in claim 5, wherein the rotating member has a stepped annular groove recessed at one end and a plurality of pin holes formed at the other end, the plurality of pin holes communicating with the stepped annular groove and providing each locking pin to pass through.
7. The torque adjusting locking structure of a torque wrench as claimed in claim 6, wherein the locking screw member has an internal threaded hole and an abutting portion abutting against each locking bolt, the internal threaded hole threadedly engages the locking bolt, the abutting portion enters the stepped annular groove and urges against one end of each locking bolt, and the other end of each locking bolt extends out of the rotating member and urges against the limiting guide sleeve, so that the limiting guide sleeve and the combined torque adjusting set are locked and unable to rotate and move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855421.0A CN110774209B (en) | 2018-07-31 | 2018-07-31 | Torque force adjusting and locking structure of torque wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810855421.0A CN110774209B (en) | 2018-07-31 | 2018-07-31 | Torque force adjusting and locking structure of torque wrench |
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| Publication Number | Publication Date |
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| CN110774209A CN110774209A (en) | 2020-02-11 |
| CN110774209B true CN110774209B (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810855421.0A Active CN110774209B (en) | 2018-07-31 | 2018-07-31 | Torque force adjusting and locking structure of torque wrench |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114563534B (en) * | 2022-03-03 | 2024-04-19 | 广州睿瞰能源技术有限公司 | Online hydrogen detection device of beer bottle cleaning machine |
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|---|---|---|---|---|
| CN101879711A (en) * | 2009-05-04 | 2010-11-10 | 昰星实业有限公司 | Torsion adjusting and locking mechanism of torsion tool |
| CN202037579U (en) * | 2011-01-19 | 2011-11-16 | 黄鸿文 | Improved torque wrench adjusting locating structure |
| CN203156637U (en) * | 2012-04-10 | 2013-08-28 | 陈竹村 | Torque wrench |
| CN205497317U (en) * | 2016-02-23 | 2016-08-24 | 黄鸿文 | Torque wrench |
| DE202016105314U1 (en) * | 2016-09-23 | 2016-11-07 | Ming Wei Hsu | Correction structure of the torque value of a torque wrench |
| CN206263845U (en) * | 2016-11-15 | 2017-06-20 | 黄鸿文 | Torque spanner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10093007B2 (en) * | 2016-11-21 | 2018-10-09 | Yi-Fu Chen | Torque setting device for torque wrench |
-
2018
- 2018-07-31 CN CN201810855421.0A patent/CN110774209B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879711A (en) * | 2009-05-04 | 2010-11-10 | 昰星实业有限公司 | Torsion adjusting and locking mechanism of torsion tool |
| CN202037579U (en) * | 2011-01-19 | 2011-11-16 | 黄鸿文 | Improved torque wrench adjusting locating structure |
| CN203156637U (en) * | 2012-04-10 | 2013-08-28 | 陈竹村 | Torque wrench |
| CN205497317U (en) * | 2016-02-23 | 2016-08-24 | 黄鸿文 | Torque wrench |
| DE202016105314U1 (en) * | 2016-09-23 | 2016-11-07 | Ming Wei Hsu | Correction structure of the torque value of a torque wrench |
| CN206263845U (en) * | 2016-11-15 | 2017-06-20 | 黄鸿文 | Torque spanner |
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| CN110774209A (en) | 2020-02-11 |
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