CN106584337B - Novel torque wrench with warning function - Google Patents
Novel torque wrench with warning function Download PDFInfo
- Publication number
- CN106584337B CN106584337B CN201710061886.4A CN201710061886A CN106584337B CN 106584337 B CN106584337 B CN 106584337B CN 201710061886 A CN201710061886 A CN 201710061886A CN 106584337 B CN106584337 B CN 106584337B
- Authority
- CN
- China
- Prior art keywords
- ring
- wrench
- spring
- ejector rod
- torque
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007906 compression Methods 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005056 compaction Methods 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/04—Spanners; Wrenches with rigid jaws of ring jaw type
-
- 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 discloses a novel torque wrench with a warning function, which comprises a wrench body, wherein one end of the wrench is a double offset ring wrench head, the double offset ring wrench head comprises a mounting hole and an accommodating cavity, the mounting hole is communicated with the accommodating cavity, a torque ring is arranged in the mounting hole, the torque ring comprises a ring body and a connecting ejector rod, the ring body is arranged in the mounting hole, the connecting ejector rod is arranged in the accommodating cavity, an ejector block is arranged at the lower part of the connecting ejector rod, and a spring is arranged at the lower part of the ejector block. The invention has simple structure, can play a warning function, is convenient to use and has low cost; the inside stopper that is equipped with effectively prevents the part and transships, avoids the spring compression excessive, leads to the spring inefficacy.
Description
Technical Field
The invention relates to a wrench, in particular to a novel torque wrench with a warning function.
Background
At present, the spanner often can lead to the condition of bolt head twist-off because hard too violently to take place in the use, and current spanner of taking warning function is mostly electronic warning device, and this kind of spanner price is expensive relatively.
The invention aims to provide a novel torque wrench with a warning function.
The invention aims to solve the problems that in the prior art, a bolt head is usually screwed off due to over-hard force of a wrench in the using process, and the conventional wrench with the warning function is relatively expensive.
Disclosure of Invention
The novel torque wrench with the warning function comprises a wrench body, wherein one end of the wrench body is a double offset ring wrench head, the double offset ring wrench head comprises a mounting hole and an accommodating cavity, the mounting hole is communicated with the accommodating cavity, a torque ring is arranged in the mounting hole and comprises a ring body and a connecting ejector rod, the ring body is arranged in the mounting hole, the connecting ejector rod is arranged in the accommodating cavity, an ejector block is arranged at the lower part of the connecting ejector rod, and a spring is arranged at the lower part of the ejector block.
The torsion ring can rotate relatively in the mounting hole, and the ring body and the connecting ejector rod are of an integrally formed structure.
The spring is in an original state when the lower part of the connecting ejector rod is positioned at the lowest point of the inclined plane, the spring is compressed when the lower part of the connecting ejector rod is positioned at the lowest point, the spring is compressed to the maximum when the connecting ejector rod is positioned at the highest point of the inclined plane, and the spring is in an effective compression range, so that the spring is prevented from being over-compressed and losing efficacy.
And an indicating arrow is arranged on the ring body at the crossed position of the ring body and the connecting mandril.
The outer part of the plum blossom wrench head is provided with a pressing cover plate, and the pressing cover plate is provided with a sign.
The indicator is a torque gear indicator and comprises a force application range indicating area and a force non-application range indicating area.
The force application range indicating area and the force non-application range indicating area are positioned below the indicating arrow.
The inner wall of the torsion ring is a polygonal engaging opening matched with the bolt head.
The invention has the beneficial effects that: the invention has simple structure, can play a warning function, is convenient to use and has low cost; the stop block is arranged inside the spring, so that the overload of parts is effectively prevented, and the spring is prevented from being failed due to the over-compression of the spring.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic exploded view of the present invention.
Fig. 3 is a schematic structural diagram of the top block of the present invention.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
As shown in the figure, the wrench comprises a wrench body and is characterized in that one end of the wrench is a double offset ring wrench head 2, the double offset ring wrench head comprises a mounting hole 10 and an accommodating cavity 11, the mounting hole 10 is communicated with the accommodating cavity 11, a torsion ring is arranged in the mounting hole 10, the torsion ring comprises a ring body 1 and a connecting ejector rod 4, the ring body 1 is arranged in the mounting hole 10, the connecting ejector rod 4 is arranged in the accommodating cavity 11, an ejector block 8 is arranged at the lower part of the connecting ejector rod 4, and a spring 7 is arranged at the lower part of the ejector block 8.
The torsion ring can rotate relatively in the mounting hole, and the ring body and the connecting ejector rod are of an integrally formed structure.
The upper part of the ejector block 8 is provided with an inclined plane, the inclined plane is 5 high on the left side and 6 low on the right side, when the lower part of the connecting ejector rod 4 is positioned at the lowest point of the inclined plane, the spring 7 is in an original state, when the lower part of the connecting ejector rod 4 is positioned at the non-lowest point, the spring is compressed, when the connecting ejector rod 4 is positioned at the highest point of the inclined plane, the spring 7 is compressed to the maximum, but the spring 7 is still in an effective compression range, so that the spring 7 is prevented from being compressed excessively and losing efficacy.
An indication arrow 91 is arranged on the ring body at the crossed position of the ring body 1 and the connecting mandril 4.
The outer part of the plum blossom spanner head is provided with a pressing cover plate 12, and the pressing cover plate 12 is provided with a sign.
The indicator is a torque gear indicator and comprises a force application range indicating area 3 and a force non-application range indicating area 9.
The force applicable range indication area 3 and the force unappliable range indication area 9 are located below the indication arrow 91.
The inner wall of the torsion ring is a polygonal engaging opening matched with the bolt head.
Example 1: the invention discloses a bolt specification of M10 × 1.5P, a bolt grade of 8.8, and a minimum breaking torque of 66N.m, wherein when the box spanner head is sleeved on the bolt to apply force, the forces are acted mutually, when the spanner is applied with force from left to right, the bolt can apply force to the torsion ring from right to left to drive the torsion ring to rotate from right to left, the rotation of the torsion ring drives the connecting ejector rod to rotate, so that the ejector block compresses the spring, when the force applied to the spanner is gradually increased, the ejector block compresses the spring more, the rotary displacement of the torsion ring is larger, the indicating arrow continuously moves from right to left, because the indicating arrow is arranged below the indicating arrow, the force is stopped when the arrow moves from the force application range indicating area to the force non-application range indicating area, and if the force is continuously applied, the bolt torque can be broken, because the ejector block is arranged in an inclined plane structure, therefore, even if the external force is not stopped to be applied, the ring body of the connecting ejector rod cannot be displaced after the connecting ejector rod is propped against the highest point of the inclined plane, and the spring is prevented from being excessively compressed and losing efficacy.
Claims (1)
1. A novel torque wrench with a warning function comprises a wrench body and is characterized in that one end of the wrench is a double offset ring wrench head, the double offset ring wrench head comprises a mounting hole and an accommodating cavity, the mounting hole is communicated with the accommodating cavity, a torque ring is arranged in the mounting hole and comprises a ring body and a connecting ejector rod, the ring body is arranged in the mounting hole, the connecting ejector rod is arranged in the accommodating cavity, an ejector block is arranged at the lower part of the connecting ejector rod, and a spring is arranged at the lower part of the ejector block;
the torsion ring can rotate relatively in the mounting hole, and the ring body and the connecting ejector rod are of an integrally formed structure;
the upper part of the ejector block is provided with an inclined plane, the inclined plane is high on the left side and low on the right side, when the lower part of the connecting ejector rod is positioned at the lowest point of the inclined plane, the spring is in an original state, when the lower part of the connecting ejector rod is positioned at the non-lowest point, the spring is compressed, when the lower part of the connecting ejector rod is positioned at the highest point of the inclined plane, the spring is compressed maximally and is positioned in an effective compression range, and therefore the spring is prevented from being over-compressed and losing efficacy;
an indicating arrow is arranged on the ring body at the crossed position of the ring body and the connecting mandril;
a compaction cover plate is arranged outside the plum blossom wrench head, and a sign is arranged on the compaction cover plate;
the indicating plate is a torque gear indicating plate and comprises a force application range indicating area and a force non-application range indicating area;
the force application range indicating area and the force application range indicating area are positioned below the indicating arrow;
the inner wall of the torsion ring is a polygonal engaging opening matched with the bolt head;
when a wrench is forced to the right from the left, the bolt can provide a force for the torque ring to move from the right to the left, so that the torque ring is driven to rotate from the right to the left, the rotation of the torque ring drives the connecting ejector rod to rotate, the ejector block compresses the spring, when the force on the wrench is gradually increased, the ejector block compresses the spring more, the rotational displacement of the torque ring is larger, the indicating arrow continuously moves from the right to the left, the force application is stopped when the arrow position moves from the force application range indicating area to the force application range indicating area due to the fact that the indicating arrow is provided with the indicator, and if the force application is continued, the bolt torque can be damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061886.4A CN106584337B (en) | 2017-01-27 | 2017-01-27 | Novel torque wrench with warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061886.4A CN106584337B (en) | 2017-01-27 | 2017-01-27 | Novel torque wrench with warning function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106584337A CN106584337A (en) | 2017-04-26 |
| CN106584337B true CN106584337B (en) | 2021-09-28 |
Family
ID=58586705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710061886.4A Active CN106584337B (en) | 2017-01-27 | 2017-01-27 | Novel torque wrench with warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106584337B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014023A1 (en) * | 2000-08-10 | 2002-02-21 | Norman Ian Mathers | Torque wrench |
| CN2538495Y (en) * | 2002-01-08 | 2003-03-05 | 谢智庆 | Torque force wrench |
| CN2691786Y (en) * | 2004-01-19 | 2005-04-13 | 祝小妍 | Moment spanner |
| CN201128128Y (en) * | 2007-12-28 | 2008-10-08 | 中铁二局股份有限公司 | Quick-speed torque wrench |
| CN202318103U (en) * | 2011-10-17 | 2012-07-11 | 中国石油化工股份有限公司 | Torque indicating wrench |
| CN203460094U (en) * | 2013-08-21 | 2014-03-05 | 杭州钢信建设工程检测有限公司 | Pointer-type torque wrench |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2756203B1 (en) * | 1996-11-27 | 1999-02-12 | Facom | DYNAMOMETRIC KEY |
-
2017
- 2017-01-27 CN CN201710061886.4A patent/CN106584337B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014023A1 (en) * | 2000-08-10 | 2002-02-21 | Norman Ian Mathers | Torque wrench |
| CN2538495Y (en) * | 2002-01-08 | 2003-03-05 | 谢智庆 | Torque force wrench |
| CN2691786Y (en) * | 2004-01-19 | 2005-04-13 | 祝小妍 | Moment spanner |
| CN201128128Y (en) * | 2007-12-28 | 2008-10-08 | 中铁二局股份有限公司 | Quick-speed torque wrench |
| CN202318103U (en) * | 2011-10-17 | 2012-07-11 | 中国石油化工股份有限公司 | Torque indicating wrench |
| CN203460094U (en) * | 2013-08-21 | 2014-03-05 | 杭州钢信建设工程检测有限公司 | Pointer-type torque wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106584337A (en) | 2017-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 315000 business 05, No. 28, Longjin Shangdu, Yuelin street, Fenghua District, Ningbo City, Zhejiang Province Applicant after: NINGBO FENGHUA FEITIANREN PRECISION MOULD DESIGN Co.,Ltd. Address before: No.28 commercial building, Longjin Shangdu, Yuelin street, Fenghua District, Ningbo City, Zhejiang Province Applicant before: FENGHUA FEITIANREN PRECISION MOULD DESIGN Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210913 Address after: 201400 No. 168, Qianqiao Road, Qingcun Town, Fengxian District, Shanghai Applicant after: SHANGHAI YOUBAI MACHINERY Co.,Ltd. Address before: 315000 business 05, No. 28, Longjin Shangdu, Yuelin street, Fenghua District, Ningbo City, Zhejiang Province Applicant before: NINGBO FENGHUA FEITIANREN PRECISION MOULD DESIGN Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| OL01 | Intention to license declared | ||
| OL01 | Intention to license declared | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20170426 Assignee: Weizhong Hardware Factory, Huanggu Town, Pinghu City Assignor: SHANGHAI YOUBAI MACHINERY CO.,LTD. Contract record no.: X2024980011241 Denomination of invention: New torque wrench with warning function Granted publication date: 20210928 License type: Open License Record date: 20240805 |