CN101402188A - Adjustable gapless dead wrench - Google Patents
Adjustable gapless dead wrench Download PDFInfo
- Publication number
- CN101402188A CN101402188A CN 200810031965 CN200810031965A CN101402188A CN 101402188 A CN101402188 A CN 101402188A CN 200810031965 CN200810031965 CN 200810031965 CN 200810031965 A CN200810031965 A CN 200810031965A CN 101402188 A CN101402188 A CN 101402188A
- Authority
- CN
- China
- Prior art keywords
- fixture block
- tube
- quill
- nut
- wrench according
- 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.)
- Pending
Links
Images
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention discloses an adjustable non-clearance solid wrench. The end part of a wrench rod is provided with a wrench cylinder; the inside of the wrench cylinder is provided with a movable sleeve which can slide right and left and is connected with the wrench cylinder; one end of the movable sleeve is provided with a tension device; the movable sleeve is a cone body; the wall of the sleeve consists of axial clamping blocks which are evenly distributed and can clamp screw caps; a clearance groove is arranged between the adjacent clamping blocks; and the tail end of each clamping block is connected with the tension device. The tension device can make the movable sleeve axially move; the head of the sleeve can shrink; and the clamping block inwards produces radial displacement, thereby removing the clearance between the clamping block and the head of a nut and a bolt, realizing clamping and preventing causing that the nut is easy to deform and skid due to the clearance. As the movable clamping block and the wrench cylinder are connected through a convex block and a groove or a key, the adjustable non-clearance solid wrench can bear great load, and is suitable for pretightening and loosening the bolt or the nut in mounting and detachment, which needs very large moment.
Description
Technical field
The invention belongs to a kind of fork spanner, particularly a kind of adjustable gapless dead wrench.
Background technology
Be extensive use of bolt in oil, chemical industry and other many industries and fix, and the main tool of pretension or loose bolts is a spanner.Monkey wrench and fork spanner can be used for pretension or loose bolts, monkey wrench can be regulated within the specific limits, it is comparatively convenient to use, but because that monkey wrench bears torsional moment is less relatively, when pretightning force requires greatly, do not reach instructions for use, can't satisfy instructions for use when limited by pretension or loosening locus yet.For monkey wrench, the load that fork spanner bore is much bigger.Fork spanner can be divided into two kinds of open-type and non-open-types by the Wrench head shape, the open-type fork spanner is compared with non-open-type fork spanner, the open-type fork spanner stressed when big spanner mouth easy deformation dehisce, easily skid and not loose bolt, it is big that non-open-type fork spanner holding capacity moment ratio open-type is wanted.Non-open-type fork spanner head generally is designed to six squares and blossom type, the in use minimum labor turnover angle of blossom type fork spanner is 30 degree, the in use minimum labor turnover angle of six square fork spanners is 60 degree, in the locus that spanner rotates when restricted, six square fork spanners might not satisfy instructions for use, and it is comparatively convenient that the blossom type fork spanner uses relatively.Because the spanner position of common fork spanner can not be regulated, there is manufacture deviation at the spanner position, also there are manufacture deviation in nut or bolt, so the spanner of fork spanner has certain clearance after being enclosed within on nut or the bolt head, fork spanner and nut or bolt head contact area reduced when the existence of this gap caused work, be that effective lifting surface area reduces, nut or bolt head distortion are skidded, because the area that the blossom type fork spanner contacts with nut or bolt is littler with the area that nut or bolt contact than six square fork spanners, at when work nut or bolt is more yielding skids, especially for oil, many production equipments of chemical industry, for a long time at high temperature, high pressure and alternate load effect be work down, pretightning force to bolt requires high, back nut and the bolt easy deformation of working long hours or kill, need loosening moment very big, become flexible very difficulty.Therefore, be necessary existing six squares and blossom type fork spanner are improved.
Summary of the invention
In order to overcome the deficiency of fork spanner in the background technology, can eliminate the gap of spanner and nut or bolt head when the invention provides a kind of pretension or loose bolts, nut, prevent that existence owing to the gap from causing that nut is yielding to skid and bear the big moment fork spanner of the very large adjustable gapless of moment.
The technical solution adopted for the present invention to solve the technical problems: a kind of adjustable gapless dead wrench, tube is pulled in its tommy bar end, pull be equipped with in the tube can horizontally slip and with pull the quill that is connected of tube, an end of quill has take-up device; Quill is a platform shape body, and its barrel is made up of uniform axial fixture block that can binding nut, gapped groove between the adjacent fixture block, and the tail end of each fixture block is connected on the take-up device.
Described take-up device is the cylinder with screw thread that is connected the quill end, and adjusting nut is housed on it.
Described take-up device is the bar of moving with the hand that is connected the quill end.
Described adjusting nut and pull and be provided with adjustment part between the tube.
Described adjustment part is for adjusting pad or adjusting spring.
The profile of described quill is a bullet, and pulling an endoporus is bellmouth, and the two tapering is identical.
Described fixture block is realized being connected with axial notch with the axial projection of pulling between the tube by being complementary, projection and wherein a part be connected to an integral body, groove then is positioned on the other part, quill is installed in to be pulled when tin interior, projection places in the groove.
Described fixture block has keyway, pulls to have corresponding axial notch on the tube, is placed with key between two grooves.
The inner surface of described uniform fixture block is the plane, and the inner surface of each fixture block is formed orthohexagonal folder mouth.
The inboard of described uniform fixture block has " V " shape groove, and each fixture block inner surface is formed quincuncial folder mouth.
Beneficial effect of the present invention: because the movable sleeve barrel is made up of uniform fixture block, gapped groove between adjacent fixture block, take-up device can make quill move axially, sleeve head can be shunk and be diminished, fixture block inwardly produces radial displacement, thereby eliminate the gap of fixture block and nut or bolt head, realize clamping, prevent that existence owing to the gap from causing that nut is yielding to skid.Because movable clip block is to adopt projection to connect or key connecting with groove with pulling between the tube, so can bear very big load, is applicable to the mounting or dismounting of pretension or loosening very large bolt of required moment or nut.
Description of drawings
Fig. 1 is the cutaway view of the embodiment of the invention 1;
Fig. 2 is the left view of the embodiment of the invention 1;
Fig. 3 is the cutaway view of the embodiment of the invention 2;
Fig. 4 is the left view of the embodiment of the invention 2;
Fig. 5 is the cutaway view of the embodiment of the invention 3;
Fig. 6 is the left view of the embodiment of the invention 3;
Fig. 7 is the cutaway view of the embodiment of the invention 4;
Fig. 8 is the left view of the embodiment of the invention 4;
Fig. 9 is the cutaway view of the embodiment of the invention 5;
Figure 10 is the left view of the embodiment of the invention 5.
Among the figure: the 1-tommy bar, 2-pulls tube, the 3-quill, the 4-key, 5-adjusts pad, the 6-adjusting nut, the 7-clearance groove, 8-regular hexagon folder mouth, the 9-axial notch, the 10-fixture block, 11-projection, 12-move with the hand bar, 13-cannelure, 14-" V " shape groove, 15-plum blossom clevis mouth.
The specific embodiment
As shown in Figure 1 and Figure 2, tube 2 is pulled in tommy bar 1 end of fork spanner, pulls tube 2 endoporus and is bellmouth, and is left large and right small.Pulling in the tube 2 has quill 3, and the profile of quill 3 is a cone, and its tapering is identical with the tapering of pulling tube 2 endoporus.The small end of quill 3 is connected with a cylinder, and cylindrical outer surface is processed with screw thread, and adjusting nut 6 is housed, adjusting nut 6 and pull tube and be provided with between 2 and adjust pad 5.The barrel of quill 3 is made up of uniform fixture block 10, and the inboard of fixture block 10 is the plane, and the inner surface of uniform fixture block 10 is formed orthohexagonal folder mouth 8, gapped groove 7 between the adjacent fixture block 10, and the tail end of each fixture block 10 is connected on the cylinder, on the fixture block 10 keyway is arranged; Pulling tube 2 inwalls has axial notch 9, and quill 3 is installed in when pulling in the tube 2, and key 4 places the keyway of fixture block 10 and pulls in the axial notch 9 of tube 2.Tightening adjusting nut 6 can make quill 3 endwisely slip toward adjusting nut 6 directions in pulling tube 2, and the contraction of quill 3 heads is diminished, be that fixture block 10 produces inside radial displacement, thereby eliminate the gap between fixture block 10 and nut or the bolt head, realize clamping.Fixture block 10 has cannelure 13 with cylindrical connecting portion, and wall thickness is less, easily produces strain.
Before spanner uses, adjusting nut 6 is not screwed to the position, quill 3 stretches out pulls tube 2, this moment, its folder mouth 8 was in open configuration, then spanner is enclosed within and treats on pretension, the loosening nut or bolt, gapped between fixture block 10 and nut or the bolt at this moment, suitably tighten adjusting nut 6, quill 3 moves axially to adjusting nut 6 ends, under the effect of pulling tube 2 taper positions, fixture block 10 produces inside radial displacement, can eliminate the gap between fixture block 10 and the nut, thereby binding nut or bolt, and then pretension, loose bolts, nut.
As shown in Figure 3, Figure 4, tube 2 is pulled in tommy bar 1 end of fork spanner, pulls tube 2 endoporus and is bellmouth, and is left large and right small.Pulling in the tube 2 has quill 3, and the profile of quill 3 is a cone, and its tapering is identical with the tapering of pulling tube 2 endoporus.The small end of quill 3 is connected with a cylinder, and cylindrical outer surface is processed with screw thread, and adjusting nut 6 is housed, adjusting nut 6 and pull tube and be provided with between 2 tail ends and adjust pad 5.The barrel of quill 3 is made up of uniform fixture block 10, and the inboard of fixture block 10 is the plane, and the inner surface of each fixture block is formed orthohexagonal folder mouth 8, gapped groove 7 between the adjacent fixture block 10, and the tail end of each fixture block 10 is connected on the cylinder; Axial projection 11 is linked as an integral body with fixture block 10, is the external splines shape; Pulling tube 2 inwalls has axial notch 9, is the internal spline shape, and quill 3 is installed in when pulling in the tube 2, and projection 11 places in the axial notch 9 of pulling tube 2.Tighten adjusting nut 6 quill 3 is endwisely slipped toward the adjusting nut direction in pulling tube 2, and sleeve 3 heads are shunk diminish, promptly fixture block 10 produces inside radial displacement, thereby eliminates the gap of fixture block 10 and nut or bolt head, realizes clamping.Fixture block 10 has cannelure 13 with cylindrical connecting portion, and wall thickness is less, easily produces strain.
As Fig. 5, shown in Figure 6, tube 2 is pulled in tommy bar 1 end of fork spanner, pulls tube 2 endoporus and is bellmouth, and is left large and right small.Pulling in the tube 2 has quill 3, and the profile of quill 3 is a cone, and its tapering is identical with the tapering of pulling tube 2 endoporus.The small end of quill 3 is connected with cylinder, moves with the hand bar 12 on the cylinder.The barrel of quill 3 is made up of uniform fixture block 10, and the inboard of fixture block 10 is the plane, and uniform fixture block 10 constitutes orthohexagonal folder mouth 8, gapped groove 7 between the adjacent fixture block 10, and the tail end of each fixture block 10 approaches and fuses.Has axial notch 9 on the fixture block 10; Pull on tube 2 the inwall and have axial projection 11, quill 3 is installed in when pulling in the tube 2, and projection 11 places in the axial notch 9 of fixture block 10.Bar 12 is moved with the hand in pulling can make quill 3 endwisely slip toward the adjusting nut direction in pulling tube 2, and sleeve 3 heads is shunk diminish, and promptly fixture block 10 produces inside radial displacement, thereby eliminates the gap of fixture block 10 and nut or bolt head, realizes clamping.Fixture block 10 has cannelure 13 with cylindrical connecting portion, and wall thickness is less, easily produces strain.
As Fig. 7, shown in Figure 8, tube 2 is pulled in tommy bar 1 end of fork spanner, pulls tube 2 endoporus and is bellmouth, and is left large and right small.Pulling in the tube 2 has quill 3, and the profile of quill 3 is a cone, and its tapering is identical with the tapering of pulling tube 2 endoporus.The small end of quill 3 is connected with a cylinder, and cylindrical outer surface is processed with screw thread, and adjusting nut 6 is housed, adjusting nut 6 and pull tube and be provided with between 2 tail ends and adjust pad 5.The barrel of quill 3 is made up of uniform fixture block 10, gapped groove 7 between the adjacent fixture block 10, and the tail end of each fixture block 10 is connected on the cylinder; The inboard of each fixture block 10 is the plane, and the middle part has " V " shape groove 14, and the inner surface of each fixture block is formed quincuncial folder mouth 15; Axial projection 11 is linked as an integral body with fixture block 10, is the external splines shape; Pulling tube 2 inwalls has axial notch 9, is the internal spline shape, and quill 3 is installed in when pulling in the tube 2, and projection 11 places in the axial notch 9 of pulling tube 2.Tighten adjusting nut 6 quill 3 is endwisely slipped toward adjusting nut 6 directions in pulling tube 2, and sleeve 3 heads are shunk diminish, promptly fixture block 10 produces inside radial displacement, thereby eliminates the gap of fixture block 10 and nut or bolt head, realizes clamping.Fixture block 10 has cannelure 13 with cylindrical connecting portion, and wall thickness is less, easily produces strain.
As Fig. 9, shown in Figure 10, tube 2 is pulled in tommy bar 1 end of fork spanner, pulls tube 2 endoporus and is bellmouth, and is left large and right small.Pulling in the tube 2 has quill 3, and the profile of quill 3 is a cone, and its tapering is identical with the tapering of pulling tube 2 endoporus.The small end of quill 3 is connected with a cylinder, and cylindrical outer surface is processed with screw thread, and adjusting nut 6 is housed, adjusting nut 6 and pull tube and be provided with between 2 and adjust pad 5.The barrel of quill 3 is made up of uniform fixture block 10, and the inboard of fixture block 10 is the plane, and the middle part has " V " shape groove 14, the inner surface of uniform fixture block 10 is formed quincuncial folder mouth 15, gapped groove 7 between the adjacent fixture block 10, the tail end of each fixture block 10 is connected on the cylinder, on the fixture block 10 keyway is arranged; Pulling tube 2 inwalls has axial notch 9, and quill 3 is installed in when pulling in the tube 2, and key 4 places the keyway of fixture block 10 and pulls in the groove 9 of tube 2.Tightening adjusting nut 6 can make quill 3 endwisely slip toward adjusting nut 6 directions in pulling tube 2, and the contraction of quill 3 heads is diminished, be that fixture block 10 produces inside radial displacement, thereby eliminate the gap between fixture block 10 and nut or the bolt head, realize clamping.Fixture block 10 has cannelure 13 with cylindrical connecting portion, and wall thickness is less, easily produces strain.
The invention is not restricted to above-mentioned five kinds of embodiment.Among embodiment 1, embodiment 2, embodiment 3, embodiment 4 and the embodiment 5 pull tube 2 interior shape and the profile of quill 3 can not be coniform, the terrace with edge shape that can be made up of a plurality of planes; Embodiment 1, embodiment 2, embodiment 3, embodiment 4 and implement the folder mouth that uniform fixture block 10 in 5 can also constitute other shape; Adjustment pad 5 among embodiment 1, embodiment 2, embodiment 4 and the embodiment 5 can make spring into or other plays the member of corrective action; Axial projection 11 among embodiment 2 and the embodiment 4 can link into an integrated entity with pulling tube 2, and axial notch 9 can be arranged on the uniform fixture block 10; Axial notch 9 among the embodiment 3 can be arranged on to be pulled on the tube 2, and axial projection 11 can be connected in aggregates with fixture block 10.Aforementioned various situation all belongs to protection scope of the present invention.
Claims (10)
1, a kind of adjustable gapless dead wrench, its tommy bar (1) end are pulled tube (2), it is characterized in that: pull tube be equipped with in (2) can horizontally slip and with pull the quill (3) that tube (2) is connected, an end of quill (3) has take-up device; Quill (3) is a platform shape body, and its barrel is made up of uniform axial fixture block (10) that can binding nut, gapped groove (7) between the adjacent fixture block (10), and the tail end of each fixture block (10) is connected on the take-up device.
2, adjustable gapless dead wrench according to claim 1 is characterized in that: described take-up device is equipped with adjusting nut (6) for being connected the cylinder with screw thread of quill (3) end on it.
3, adjustable gapless dead wrench according to claim 1 is characterized in that: described take-up device is moved with the hand bar (12) for what be connected quill (3) end.
4, adjustable gapless dead wrench according to claim 2 is characterized in that: described adjusting nut (6) and pull tube and be provided with adjustment part between (2).
5, adjustable gapless dead wrench according to claim 4 is characterized in that: described adjustment part is for adjusting pad (5) or adjusting spring.
6, adjustable gapless dead wrench according to claim 1 is characterized in that: the profile of described quill (3) is a bullet, and pulling tube (2) endoporus is bellmouth, and the two tapering is identical.
7, adjustable gapless dead wrench according to claim 1, it is characterized in that: described fixture block (10) is connected with axial notch (9) realization by the axial projection (11) that is complementary with pulling between the tube (2), projection (11) is connected to an integral body with a part wherein, groove (9) then is positioned on the other part, quill (3) is installed in pulls tube (2) when interior, and projection (11) places in the groove (9).
8, adjustable gapless dead wrench according to claim 1 is characterized in that: described fixture block (10) has keyway, pulls on the tube (2) to have corresponding axial notch (9), is placed with key (4) between two grooves.
9, adjustable gapless dead wrench according to claim 1 is characterized in that: the inner surface of described uniform fixture block (10) is the plane, and the inner surface of each fixture block (10) is formed orthohexagonal folder mouthful (8).
10, adjustable gapless dead wrench according to claim 1 is characterized in that: the inboard of described uniform fixture block (10) has " V " shape groove (14), and each fixture block inner surface is formed quincuncial folder mouthful (15).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200810031965 CN101402188A (en) | 2008-07-29 | 2008-07-29 | Adjustable gapless dead wrench |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200810031965 CN101402188A (en) | 2008-07-29 | 2008-07-29 | Adjustable gapless dead wrench |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101402188A true CN101402188A (en) | 2009-04-08 |
Family
ID=40536423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200810031965 Pending CN101402188A (en) | 2008-07-29 | 2008-07-29 | Adjustable gapless dead wrench |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101402188A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102848338A (en) * | 2012-08-22 | 2013-01-02 | 北京摩诘创新科技有限公司 | Adjustable wrench and nut for same |
CN102092028B (en) * | 2009-12-09 | 2013-01-23 | 志拓有限公司 | Screw remover |
CN102990581A (en) * | 2012-11-21 | 2013-03-27 | 沈阳黎明航空零部件制造有限公司 | Method for replacing hydraulic actuating cylinder sealing ring of some machine |
CN103101007A (en) * | 2013-02-18 | 2013-05-15 | 成都九鼎科技(集团)有限公司 | Damper indicator diagram test fixture |
CN103128685A (en) * | 2011-11-25 | 2013-06-05 | 苏州工业园区协诚精密五金有限公司 | Screw withdrawal tool |
CN103302610A (en) * | 2013-06-28 | 2013-09-18 | 辽宁工业大学 | Quick manual clamp for external-thread workpiece and using method thereof |
CN104162870A (en) * | 2014-06-14 | 2014-11-26 | 蒋杰 | Combined socket head wrench force augmentation bar |
CN107234573A (en) * | 2017-07-10 | 2017-10-10 | 河南柴油机重工有限责任公司 | A kind of fast assembling-disassembling round nut sleeve |
CN108565079A (en) * | 2018-03-19 | 2018-09-21 | 上海先惠自动化技术股份有限公司 | A kind of new energy car battery assembling tube form |
CN109590934A (en) * | 2018-12-25 | 2019-04-09 | 深圳大学 | The spanner adjusted convenient for caliber size |
CN110273994A (en) * | 2019-06-20 | 2019-09-24 | 深圳市世椿智能装备股份有限公司 | A kind of internal spline ball screw assembly, |
CN110649446A (en) * | 2019-10-31 | 2020-01-03 | 中船黄埔文冲船舶有限公司 | Tool for fastening high-frequency plug |
CN112729827A (en) * | 2020-12-21 | 2021-04-30 | 中国航发哈尔滨轴承有限公司 | Universal nut torque applying adapter |
-
2008
- 2008-07-29 CN CN 200810031965 patent/CN101402188A/en active Pending
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102092028B (en) * | 2009-12-09 | 2013-01-23 | 志拓有限公司 | Screw remover |
CN103128685A (en) * | 2011-11-25 | 2013-06-05 | 苏州工业园区协诚精密五金有限公司 | Screw withdrawal tool |
CN102848338A (en) * | 2012-08-22 | 2013-01-02 | 北京摩诘创新科技有限公司 | Adjustable wrench and nut for same |
CN102848338B (en) * | 2012-08-22 | 2015-12-09 | 北京摩诘创新科技股份有限公司 | A kind of adjustable spanner and be suitable for the nut of this adjustable spanner |
CN102990581B (en) * | 2012-11-21 | 2015-05-27 | 沈阳黎明航空零部件制造有限公司 | Method for replacing hydraulic actuating cylinder sealing ring of some machine |
CN102990581A (en) * | 2012-11-21 | 2013-03-27 | 沈阳黎明航空零部件制造有限公司 | Method for replacing hydraulic actuating cylinder sealing ring of some machine |
CN103101007A (en) * | 2013-02-18 | 2013-05-15 | 成都九鼎科技(集团)有限公司 | Damper indicator diagram test fixture |
CN103101007B (en) * | 2013-02-18 | 2015-05-27 | 成都九鼎科技(集团)有限公司 | Damper indicator diagram test fixture |
CN103302610A (en) * | 2013-06-28 | 2013-09-18 | 辽宁工业大学 | Quick manual clamp for external-thread workpiece and using method thereof |
CN103302610B (en) * | 2013-06-28 | 2015-06-10 | 辽宁工业大学 | Quick manual clamp for external-thread workpiece and using method thereof |
CN104162870A (en) * | 2014-06-14 | 2014-11-26 | 蒋杰 | Combined socket head wrench force augmentation bar |
CN107234573A (en) * | 2017-07-10 | 2017-10-10 | 河南柴油机重工有限责任公司 | A kind of fast assembling-disassembling round nut sleeve |
CN108565079A (en) * | 2018-03-19 | 2018-09-21 | 上海先惠自动化技术股份有限公司 | A kind of new energy car battery assembling tube form |
CN108565079B (en) * | 2018-03-19 | 2024-04-05 | 上海先惠自动化技术股份有限公司 | New energy automobile battery equipment is with insulating sleeve structure |
CN109590934A (en) * | 2018-12-25 | 2019-04-09 | 深圳大学 | The spanner adjusted convenient for caliber size |
CN110273994A (en) * | 2019-06-20 | 2019-09-24 | 深圳市世椿智能装备股份有限公司 | A kind of internal spline ball screw assembly, |
CN110273994B (en) * | 2019-06-20 | 2024-06-07 | 深圳市世椿智能装备股份有限公司 | Internal spline ball screw pair |
CN110649446A (en) * | 2019-10-31 | 2020-01-03 | 中船黄埔文冲船舶有限公司 | Tool for fastening high-frequency plug |
CN110649446B (en) * | 2019-10-31 | 2021-03-02 | 中船黄埔文冲船舶有限公司 | Tool for fastening high-frequency plug |
CN112729827A (en) * | 2020-12-21 | 2021-04-30 | 中国航发哈尔滨轴承有限公司 | Universal nut torque applying adapter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101402188A (en) | Adjustable gapless dead wrench | |
JP6279075B2 (en) | Asymmetric fastener recess and key | |
KR102095849B1 (en) | Apparatus for tightening threaded fasteners | |
US20120137837A1 (en) | Bolt-nut turning multi socket | |
CN201231461Y (en) | Adjustable gapless dead wrench | |
CN102615626A (en) | Bolt disassembly tool | |
US20140165789A1 (en) | Tensioning device for extending a threaded bolt, and tool suitable for this purpose, preferably drive adapter | |
US4846028A (en) | Fluid-operated wrench | |
CN201493786U (en) | Improved adjustable clearance solid wrench | |
CN205904921U (en) | Spanner | |
CN212311867U (en) | Multipurpose adjustable spanner | |
CN105643522A (en) | Internal hexagonal wrench convenient for replacing six-sided cylinders in different sizes | |
CN110253478B (en) | Self-floating duplex sleeve | |
CN107097164B (en) | Three-jaw movable ratchet wrench | |
CN101920483A (en) | Adjustable wrench | |
CN212351789U (en) | Sleeve of pre-screwing bolt | |
RU2622969C2 (en) | Ram holding device for use in oil production and method of its operation | |
CN205096828U (en) | Gas turbine rotor attachment bolt preloading device | |
CN108730298A (en) | 3 fasteners | |
CN105196224A (en) | Adjustable wrench | |
US9533402B2 (en) | Hydraulically operated tightening tool | |
CN103240705A (en) | Method for quickly tightening and dismounting bolt nut and adjustable wrench achieving same | |
CN201255166Y (en) | Torsional shear type high-strength bolt for steel structure | |
CN213498898U (en) | Novel wrench | |
CN220279492U (en) | Spanner wrench |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090408 |