CN2239867Y - Wrench for dismounting screw-thread connection - Google Patents
Wrench for dismounting screw-thread connection Download PDFInfo
- Publication number
- CN2239867Y CN2239867Y CN 95219064 CN95219064U CN2239867Y CN 2239867 Y CN2239867 Y CN 2239867Y CN 95219064 CN95219064 CN 95219064 CN 95219064 U CN95219064 U CN 95219064U CN 2239867 Y CN2239867 Y CN 2239867Y
- Authority
- CN
- China
- Prior art keywords
- chain
- nut
- dismounting
- utility
- model
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a wrench for dismounting threaded connection, which is a dismounting device and belongs to the technical field of an installation and maintenance tool. A force applying handle of the utility model is hinged with one end of a chain through a hinge point pin shaft; the hook head of the force applying handle and the other end of the chain which contacts a connecting pin shaft cling to the outer edge of a nut, and the nut is a component with internal threads. The utility model has the obvious function and effect to various threaded connection which is easy to slip and is provided with a worn top circle.
Description
The utility model is the laborsaving instrument that a kind of dismounting is threaded, and belongs to the installation and maintenance electrician testing tool technology field.
Being threaded is various plant equipment connected modes commonly used, and the fastening and dismounting of nut and spiral shell inspection is all arranged in machinery installation and maintenance process.Many multiple situations such as the power space is not enough, the wearing and tearing of profile corner angle because of getting rusty, pulling that are threaded are used general spanner, under the condition of not destroying former connection parts, just are difficult to the double thread pair work, and cause the dismounting difficulty.Therefore, how to guarantee that under above-mentioned situation, the double thread pair is not destroyed, and make its fastening smoothly and dismounting, in mechanical installation and maintenance, seem important.
The purpose of this utility model just provide a kind of applicability wide, use laborsaving, Simple and Reliable screw thread dismantling key.
Of the present utility modelly be used for that the spanner that dismounting is threaded mainly comprises chain (1), connects fulcrum pin axle (2), application of force handle (3), fulcrum pin axle (4), form.Wherein application of force handle (3) is hinged with fulcrum pin axle (4), can change fulcrum pin axle (4) and rotate; Connect bearing pin (2) not only as the union piece of chain (1) simultaneously but also be the power transmission part, the eave tile part of application of force handle (3) contacts with it.Chain (1) carries out supernumerary segment or subtracts joint regulating length by connecting bearing pin (2), the one end is hinged by fulcrum pin axle (4) and application of force handle (3), the other end then always is close to the nut outer rim greater than nut outer rim girth because of chain length, and contacts with nut formation point, increases pressure.Nut is tapped part, comprises hex nut, round nut, threaded joint for pipes provided etc.Chain (3) guarantees certain length, and to adapt to the needs of different-diameter nut, application of force handle (3) is a special lever, and its fulcrum is movable, and laborsaving effect is arranged.
Adopt of the present utility modelly to be used for its advantage of spanner that dismounting is threaded and to be easy to use, can be suitable for various thread connection, during use part is not had damage with different size of certain diameter, need not aid, effect is obvious, and simple in structure, is easy to make, use.
Fig. 1 is a structural representation of the present utility model
Embodiment of the present utility model is as follows, if the screw thread pair rotation direction is dextrorotation, begins clockwise direction with chain (1) from the A end and surrounds the nut outer rim, makes the eave tile of application of force handle (3) partly catch on one and connects and press bearing pin (2), and make chain (1) degree of tightness suitable.At this moment apply power F clockwise at the D of application of force handle (3) end, F just forms power Fb, the Fc of two kinds of different-effects at 2 B, C.Connecting pin (2) is worked for counter clockwise direction at B point Fb, make chain (1) be adjacent to the nut outer rim more, increase frictional force between the two, at C point Fc is that clockwise direction works to fulcrum pin axle (4), except chain (1) more is adjacent to the nut outer rim, also make chain (1) that right handed trend is arranged, and because the mutual frictional force that chain (1) and nut produce, and D point power F is big more with being applied to, chain (1) just more is adjacent to nut, the frictional force that produces is just big more, and making between chain (1) and the nut does not have relative slip.The dismounting that is threaded of so just wearing and tearing to foreign round or skidding easily is more favourable.Therefore, produce, make the power of chain (1) up time rotation, just, nut is turned clockwise with chain (1) by the frictional force of chain (1) with nut by F, so just can be fastening smoothly to the right-handed thread pair.In the time will dismantling nut, just chain (1) is held from A, the eave tile that counterclockwise surrounds nut outer rim application of force handle (3) partly catches on one and connects bearing pin (2), and make chain (1) degree of tightness suitable, at this moment apply power F in the D end inverse time of application of force handle (3) along the pin direction, with above-mentioned principle, just can dismantle nut easily.If screw thread pair is left-handed, need be to it during fastening or dismounting, on the contrary said process then.According to the above, just can form the spanner that dismounting is threaded that is used for of the present utility model.
Claims (2)
1, a kind ofly is used for the spanner that dismounting is threaded, it is characterized in that this spanner connects bearing pin (2) application of force handle (3) fulcrum pin axle (4) by chain (1) and formed, wherein application of force handle (3) is hinged by fulcrum pin axle (4) and chain one end, its eave tile part contacts with being connected bearing pin (2), and chain is by connecting bearing pin (2) series connection.
2, a kind of spanner that dismounting is threaded that is used for according to claim 1 is characterized in that chain (1) carries out supernumerary segment, subtracts joint by connecting bearing pin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219064 CN2239867Y (en) | 1995-08-04 | 1995-08-04 | Wrench for dismounting screw-thread connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219064 CN2239867Y (en) | 1995-08-04 | 1995-08-04 | Wrench for dismounting screw-thread connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2239867Y true CN2239867Y (en) | 1996-11-13 |
Family
ID=33867365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219064 Expired - Fee Related CN2239867Y (en) | 1995-08-04 | 1995-08-04 | Wrench for dismounting screw-thread connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2239867Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554869A (en) * | 2010-12-15 | 2012-07-11 | 珠海格力电器股份有限公司 | Tool for quickly fastening, detaching or adjusting circumferential bolts and application method of tool |
| CN108081193A (en) * | 2016-11-19 | 2018-05-29 | 本钢板材股份有限公司 | A kind of instrument for dismantling lacing wire |
| WO2019010531A1 (en) * | 2017-07-11 | 2019-01-17 | Integrity Engineering Solutions Pty Ltd | Backup wrenches |
| CN109551418A (en) * | 2019-01-30 | 2019-04-02 | 三门核电有限公司 | A kind of pressure gauge housing dismantling device |
-
1995
- 1995-08-04 CN CN 95219064 patent/CN2239867Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554869A (en) * | 2010-12-15 | 2012-07-11 | 珠海格力电器股份有限公司 | Tool for quickly fastening, detaching or adjusting circumferential bolts and application method of tool |
| CN102554869B (en) * | 2010-12-15 | 2014-06-11 | 珠海格力电器股份有限公司 | Tool for quickly fastening, detaching or adjusting circumferential bolts and application method of tool |
| CN108081193A (en) * | 2016-11-19 | 2018-05-29 | 本钢板材股份有限公司 | A kind of instrument for dismantling lacing wire |
| WO2019010531A1 (en) * | 2017-07-11 | 2019-01-17 | Integrity Engineering Solutions Pty Ltd | Backup wrenches |
| EP3651939A4 (en) * | 2017-07-11 | 2021-03-10 | Integrity Engineering Solutions Pty Ltd. | Backup wrenches |
| US11440168B2 (en) | 2017-07-11 | 2022-09-13 | Integrity Engineering Solutions Pty Ltd | Backup wrenches |
| CN109551418A (en) * | 2019-01-30 | 2019-04-02 | 三门核电有限公司 | A kind of pressure gauge housing dismantling device |
| CN109551418B (en) * | 2019-01-30 | 2023-09-08 | 三门核电有限公司 | Pressure gauge shell assembly and disassembly tools |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |