CN201702746U - Broken screw extractor - Google Patents
Broken screw extractor Download PDFInfo
- Publication number
- CN201702746U CN201702746U CN2010201533405U CN201020153340U CN201702746U CN 201702746 U CN201702746 U CN 201702746U CN 2010201533405 U CN2010201533405 U CN 2010201533405U CN 201020153340 U CN201020153340 U CN 201020153340U CN 201702746 U CN201702746 U CN 201702746U
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- broken
- screw
- extracting
- lever
- nail
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- Expired - Fee Related
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Abstract
The utility model relates to a broken screw extractor, which is structurally characterized in that a screw extracting rod is connected to the upper end of a conical left-screwing threaded joint, and a transverse lever is penetratingly connected to the upper end of the screw extracting rod. The broken screw extractor can elongate work length of a screw extracting operation mechanism and meets requirements of screw extracting operation under various work conditions and stations. When broken screws are in thread slipping, the broken screws in thread slipping can be smoothly screwed off and extracted by means of manually screwing the lever and simultaneously exerting upper pulling force to the lever, thereby resolving the difficult problem that the broken screws in thread slipping are not easy to be extracted. The broken screw extractor is simple in operation and convenient in use, can be used for extracting common broken screws and broken screws in thread slipping, and is a special maintenance tool for extracting broken screws.
Description
Technical field
The utility model relates to the special-purpose maintenance tool of a kind of engineering structure and plant equipment, specifically a kind of broken end screw extractor.
Background technology
When engineering structure or workpiece adopt embedded nut, screw shell to adopt screw attachment with another member, when the plant equipment member adopts screw attachment, in long-term utilization process, owing to the phenomenon that screw fractures takes place sometimes in the effect of being loaded and vibrate.In maintenance process, at first be to take out the broken end shank of screw of interlocking in workpiece or member.Existing broken end screw extractor, its structure connect a tommy bar by a left-handed conessi and form.This broken end screw extractor can take out general broken nail bar, but because the top of left-handed screw tap is to realize that by the square pole head and the slip socket of square hole cooperating of the two connects with tommy bar, and this cooperation connecting mode can only transmit torsion and can not transmit withdrawal force, so when running into the situation of broken nail slide fastener, the taking-up of broken nail is just very bothersome.In addition, when broken nail is positioned at the change step side of workpiece or the dark recess of workpiece,, cause operating difficulties because the height of broken end screw extractor is shorter.
The utility model content
The purpose of this utility model just provides a kind ofly can transmit torsional forces, can transmit the broken end screw extractor of withdrawal force again, to make things convenient for the nail pulling operation.
The utility model is achieved in that a kind of broken end screw extractor, is connected with lever nail pulley in the upper end of taper left hand thread rotary joint, in the cross-under of the upper end of lever nail pulley horizontal tommy bar is arranged.
The utility model is after adding lever nail pulley, and the active length that can prolong the nail pulling operating mechanism is convenient to the nail pulling operation under various operating modes, station.When running into the situation of broken nail slide fastener, only need when turning tommy bar, to add a uplift force with hand, slide fastener broken nail bar can be screwed smoothly and extract, thereby solve the difficult problem that the slide fastener broken nail is not drawn out easily.
The epimere of described taper left hand thread rotary joint is a left-handed screw, and this left-handed screw section thread connection is in the screw of described lever nail pulley lower end.Here adopt threaded connection mode, overcome the drawback that the slip socket cooperates connecting mode upwards firmly not extract, realized extracting smoothly the slide fastener broken nail.
The stage casing of described taper left hand thread rotary joint is oblate axle.Like this, when the locational space of broken nail is short and small, just can extract lever nail pulley and tommy bar, utilize this oblate axle construction, turn taper left hand thread rotary joint, thereby take out broken nail with spanner.When running into the broken nail slide fastener, can fulcrum be set at the preceding pars infrasegmentalis of spanner, when turning spanner, utilize the upper support leverage power of spanner to the outer lug, nib edge of the epimere of taper left hand thread rotary joint and oblate axle joint, also can solve the difficult problem that slide fastener broken nail bar is not drawn out easily.
The utility model operation is simple and easy, easy to use, all can extract smoothly common broken end screw and slide fastener broken end screw, and be a kind of special-purpose maintenance tool of extracting the broken end screw.The utility model can be made into complete product, can be furnished with the different serial taper left hand thread rotary joint of large, medium and small model in every cover product, and the user can be selected to use according to the different-diameter of the screw that fractures.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to profile.
The specific embodiment
As shown in Figure 1, this broken end screw extractor includes taper left hand thread rotary joint 3, lever nail pulley 2 and tommy bar 1 three parts.Wherein, the hypomere of taper left hand thread rotary joint 3 is for carefully going up thick taper type left-handed thread section down, and the stage casing of taper left hand thread rotary joint 3 is an oblate axle (Fig. 2), and the epimere of taper left hand thread rotary joint 3 is a left-handed screw.Lever nail pulley 2 is long straight-bars, has horizontal through hole in the upper end of lever nail pulley 2, the tommy bar 1 of cross-under polished rod shape in the hole; Be provided with the screw that Open Side Down in the lower end of lever nail pulley 2, the Kong Zhongwei levogyrate inner thread is in order to the epimere of thread connection taper left hand thread rotary joint 3.Certainly, also can pass through other modes, the grafting as by polished rod, circular hole cooperates the pin cross-under again, realizes the connection of the two.
The nail pulling sequence of operation of the present utility model is: earlier in the centre-drilling hole of shank of screw of breaking end, boring aperture is about the 1/4-1/3 of length of taper left hand thread rotary joint, but the maximum diameter of hole should directly deduct the spiral shell footpath at taper left hand thread rotary joint rear portion smaller or equal to the broken nail root; Then, again this broken end screw extractor is inserted in the boring, turn tommy bar 1 counterclockwise, and firmly press down tommy bar simultaneously, make taper left hand thread rotary joint 3 snap in the hole wall of broken nail boring, when inward turning resistance during greater than the engagement resistance of broken nail and nut or screw shell, continue to turn tommy bar 1, the broken end shank of screw can be extracted.
Claims (3)
1. a broken end screw extractor is characterized in that the upper end of taper left hand thread rotary joint (3) is connected with lever nail pulley (2), in the upper end cross-under of lever nail pulley (2) horizontal tommy bar (1) is arranged.
2. broken end screw extractor according to claim 1, the epimere that it is characterized in that described taper left hand thread rotary joint (3) is a left-handed screw, thread connection is in the screw of described lever nail pulley (2) lower end.
3. broken end screw extractor according to claim 1 and 2, the stage casing that it is characterized in that described taper left hand thread rotary joint (3) are oblate axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201533405U CN201702746U (en) | 2010-04-09 | 2010-04-09 | Broken screw extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201533405U CN201702746U (en) | 2010-04-09 | 2010-04-09 | Broken screw extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201702746U true CN201702746U (en) | 2011-01-12 |
Family
ID=43439895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201533405U Expired - Fee Related CN201702746U (en) | 2010-04-09 | 2010-04-09 | Broken screw extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201702746U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513975A (en) * | 2011-12-23 | 2012-06-27 | 上海电机学院 | Extractor for cracked spark plug |
| CN103750897A (en) * | 2014-01-16 | 2014-04-30 | 青岛华仁技术孵化器有限公司 | Orthopaedic broken screw removing device and using method thereof |
| CN105818098A (en) * | 2016-05-18 | 2016-08-03 | 国网山东省电力公司枣庄供电公司 | Screw extractor |
| CN109015530A (en) * | 2018-09-11 | 2018-12-18 | 山东沃克控制阀有限公司 | A kind of broken bolt provision for disengagement |
| WO2019047313A1 (en) * | 2017-09-08 | 2019-03-14 | 河南裕展精密科技有限公司 | Broken-screw extractor |
| CN110549295A (en) * | 2018-05-31 | 2019-12-10 | 广东电网有限责任公司 | Screw extractor |
-
2010
- 2010-04-09 CN CN2010201533405U patent/CN201702746U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513975A (en) * | 2011-12-23 | 2012-06-27 | 上海电机学院 | Extractor for cracked spark plug |
| CN103750897A (en) * | 2014-01-16 | 2014-04-30 | 青岛华仁技术孵化器有限公司 | Orthopaedic broken screw removing device and using method thereof |
| CN103750897B (en) * | 2014-01-16 | 2016-09-07 | 王希强 | Orthopedic broken screw withdrawing device and using method thereof |
| CN105818098A (en) * | 2016-05-18 | 2016-08-03 | 国网山东省电力公司枣庄供电公司 | Screw extractor |
| WO2019047313A1 (en) * | 2017-09-08 | 2019-03-14 | 河南裕展精密科技有限公司 | Broken-screw extractor |
| CN110549295A (en) * | 2018-05-31 | 2019-12-10 | 广东电网有限责任公司 | Screw extractor |
| CN109015530A (en) * | 2018-09-11 | 2018-12-18 | 山东沃克控制阀有限公司 | A kind of broken bolt provision for disengagement |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130409 |