CN2254025Y - Spanner capable of wrenching worn nut - Google Patents
Spanner capable of wrenching worn nut Download PDFInfo
- Publication number
- CN2254025Y CN2254025Y CN 96215962 CN96215962U CN2254025Y CN 2254025 Y CN2254025 Y CN 2254025Y CN 96215962 CN96215962 CN 96215962 CN 96215962 U CN96215962 U CN 96215962U CN 2254025 Y CN2254025 Y CN 2254025Y
- Authority
- CN
- China
- Prior art keywords
- spanner
- screw bolts
- utility
- model
- angle
- 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 - Lifetime
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a spanner which can wrench the geometric surfaces of worn screw bolts. An inner hole of a close spanner or a socket spanner is made into a regular dodecagon, a round angle is arranged on an angle top, each side is arched, and an expanded M-shaped sharp tooth is arranged on each side. A shape tooth on an arched side of contiguous angles forms a far-near symmetrical mode with an angle. The utility model not only has the function of screwing down or loosening normal screw bolts, but also can be used for screwing down or loosening worn screw bolts by fixedly clamping the worn screw bolts. The utility model overcomes the defect that the existing spanners and socket spanners can wrench worn screw bolts only by using other tools.
Description
A kind of spanner of pulling how much profiles of wearing and tearing bolt, it relates to hand-held tool spanner field.
General known closed-end spanner or box spanner, hexagon and each sideline made the arcuation that arches upward to the center in all making, but it only can pull the unworn normal bolt of head, to wearing and tearing or then easily having caused and skid near the bolt of wearing and tearing, make that the bolt head wearing and tearing are even more serious or can't screw or unclamp at all.Thereby and have to just can prove effective by other instrument reconditionings, clamping, otherwise the user feels simply helpless completely to the bolt that worn and torn.Thereby delayed work, brought worry to people.
The purpose of this utility model is to propose a kind of remain silent or the box spanner working face is made the special geometry profile, its decapacitation is screwed or unclamp the outer bolt that has worn and torn that can also fix of normal bolt to screw or unclamp the insufficiency of function part that overcomes existing spanner and sleeve.
The utility model is realized in the following way, the endoporus of closed-end spanner formula box spanner is made positive 12 limit shapes, outwards recessed circular arc is arranged on each angle, every limit is that arcuation has the M shape of expansion and one high and one low pointed tooth on one side in the centre, and the high pointed tooth that connects each adjacent angular, formation elongation top, one nearly one symmetric form far away.
The advantage that this utility model has is that it has solved existing closed-end spanner and box spanner can't screw and the defective of unclamping the bolt that weares and teares.How much profiles of M shape that its utilizes arch limit are except that can screwing easily or unclamp the normal bolt, and can tighten the bolt that weares and teares securely and pull, and have avoided and must participate in the weak point of operation by repairing file or other attached assistant engineer's tools.
Description of drawings:
Accompanying drawing 1 the utility model is pulled the sectional view of normal bolt
Accompanying drawing 2 the utility model are pulled the sectional view of the bolt that weares and teares
Accompanying drawing 3 the utility model closed-end spanner stereograms
Accompanying drawing 4 the utility model box spanner sectional axonometric drawings
In conjunction with the accompanying drawings the spanner that the utility model can be pulled wearing and tearing bolt how much profiles is described further below by embodiment.The endoporus periphery of closed-end spanner or box spanner is made positive 12 limit shapes, be shaped on outwards recessed circular arc on its each angle of circumference 1, each limit at 12 angles, one side is launched into the arch limit 2 and 3 of one high and one low pointed tooth 4 for M shape by geometry in the middle of the length of side.Connect each angle 1 respectively, and pointed tooth 4 elongation 1 of the M shape of launching on each arch limit, angle are equated and symmetrical distance, and constitute one nearly one symmetric form far away with adjacent angular.
Claims (1)
1. the spanner that can pull wearing and tearing bolt how much profiles, it is characterized in that, the endoporus of closed-end spanner or box spanner is made positive 12 limit shapes, outwards recessed circular arc is arranged on each angle (1), every limit (2) and (3) are for arcuation and the M shape of expansion and one high and one low pointed tooth (4) are arranged on one side in the centre, and the high pointed tooth that connects each adjacent angular forms elongation top (1) nearly a symmetric form far away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215962 CN2254025Y (en) | 1996-07-23 | 1996-07-23 | Spanner capable of wrenching worn nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215962 CN2254025Y (en) | 1996-07-23 | 1996-07-23 | Spanner capable of wrenching worn nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254025Y true CN2254025Y (en) | 1997-05-14 |
Family
ID=33897605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96215962 Expired - Lifetime CN2254025Y (en) | 1996-07-23 | 1996-07-23 | Spanner capable of wrenching worn nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254025Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071603A (en) * | 2010-12-24 | 2011-05-25 | 中铁宝桥集团有限公司 | Railway turnout bolt and nut loosening prevention device and loosening prevention method thereof |
| DE102010060342A1 (en) | 2010-11-04 | 2012-05-10 | New Way Tools Co., Ltd. | Screw socket for use with spanner for loosening hexagon-nut in board, has through hole in which head of fastening element is received when socket is engaged with spanner so that head is oriented coaxial to socket and drive end of spanner |
| US8707830B2 (en) | 2010-10-26 | 2014-04-29 | New Way Tools Co., Ltd. | Socket |
| TWI508823B (en) * | 2012-04-10 | 2015-11-21 | ||
| TWI672197B (en) * | 2017-06-09 | 2019-09-21 | 卓耀霖 | Sleeve bite device |
| CN110722492A (en) * | 2018-07-16 | 2020-01-24 | 龙崴股份有限公司 | Tool device for sleeving and fixing |
-
1996
- 1996-07-23 CN CN 96215962 patent/CN2254025Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8707830B2 (en) | 2010-10-26 | 2014-04-29 | New Way Tools Co., Ltd. | Socket |
| DE102010060342A1 (en) | 2010-11-04 | 2012-05-10 | New Way Tools Co., Ltd. | Screw socket for use with spanner for loosening hexagon-nut in board, has through hole in which head of fastening element is received when socket is engaged with spanner so that head is oriented coaxial to socket and drive end of spanner |
| DE102010060342B4 (en) * | 2010-11-04 | 2014-04-10 | New Way Tools Co., Ltd. | screw socket |
| CN102071603A (en) * | 2010-12-24 | 2011-05-25 | 中铁宝桥集团有限公司 | Railway turnout bolt and nut loosening prevention device and loosening prevention method thereof |
| TWI508823B (en) * | 2012-04-10 | 2015-11-21 | ||
| TWI672197B (en) * | 2017-06-09 | 2019-09-21 | 卓耀霖 | Sleeve bite device |
| CN110722492A (en) * | 2018-07-16 | 2020-01-24 | 龙崴股份有限公司 | Tool device for sleeving and fixing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |