CN2748225Y - 45-degree stepped sleeve for tightening nut and bolt - Google Patents
45-degree stepped sleeve for tightening nut and bolt Download PDFInfo
- Publication number
- CN2748225Y CN2748225Y CN 200420062604 CN200420062604U CN2748225Y CN 2748225 Y CN2748225 Y CN 2748225Y CN 200420062604 CN200420062604 CN 200420062604 CN 200420062604 U CN200420062604 U CN 200420062604U CN 2748225 Y CN2748225 Y CN 2748225Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- plum blossom
- sleeve
- hand member
- left end
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
The 45-degree step sleeve for screwing the nut and the bolt can quickly and reliably screw and loosen the bolt and the nut and can replace a solid wrench and an adjustable wrench. This 45 degrees step sleeve left end is multilateral plum blossom shape (1), right-hand member for hollow square hole (2), and both outer cylinder surfaces pass through 45 degrees slope circular arc surface transitional coupling together, and its left end outer cylinder diameter is greater than the right-hand member outer cylinder diameter. The inner angle of the 12-side plum blossom corner (1) is 120 degrees, four rectangular surfaces of the hollow square hole (2) are respectively provided with a steel ball elastic groove (3) which is oval, and the sleeve is externally rolled with a circle of knurl (4) and is printed with a steel seal (5).
Description
Technical field:
The utility model fastening nut and bolt 45 degree step sleeves are tightened and release bolt and nut, and it can replace fork spanner and monkey wrench, and can 360 ° of ground rotations, so that elasticity bolt, nut, speed is very fast, and is difficult for skidding, and is easy to use and reliable.
Background technology:
Because in the plant equipment assembling and repairing, the bigger screw bolt and nut of some specifications is arranged, like this, when this end of square hole of sleeve is of a size of the unified specification size, just can connect long extension bar, slide a tommy bar, curved handle, the square tenon of unified size such as aids such as quick ratchet, and sleeve other end plum blossom dihedral, for with the nut of large-size, bolt is complementary, its internal diameter and external diameter will increase thereupon, for saving material, the reason wall thickness is not enough and cause that stress is concentrated and cause sleeve to break during use, the external diameter of sleeve plum blossom dihedral one end just is greater than the external diameter of sleeve square hole one end, just need design a kind of step sleeve that is different from the big gradient of straight platform sleeve and little gradient step sleeve.
Summary of the invention:
In order to save material, increase work efficiency, can be complementary with nut, the bolt of large-size, just design this 45 degree step sleeves, this sleeve plum blossom dihedral one end external diameter is greater than sleeve square hole one end external diameter, and, both are 45 ° arc surface transition in sleeve mid portion generation gradient, like this, the inclination angle that transition circle cambered surface and sleeve square hole external cylindrical surface intersect to produce is a 45, the Design Mechanism of Here it is 45 ° of step sleeves.
A kind of fastening nut and bolt 45 degree step sleeves, it is characterized in that the hollow polygon plum blossom dihedral of left end (1) and both outside cylinder of the hollow square hole of right-hand member (2) link together by 45 degree inclination arc surface (6) transition, left end outside cylinder diameter is greater than right-hand member outside cylinder diameter.
The same with ordinary cartridge, the hollow polygon plum blossom of left end can be inserted on nut or the bolt in the angle, and can be inserted in long extension bar in the hollow square hole of right-hand member, slide a tommy bar, curved handle, fast on aid side's tenon such as ratchet.
The hollow polygon plum blossom of left end angle can be 12 limit plum blossom dihedrals, and at this moment, the interior angle at plum blossom angle is 120 °, can be enclosed within six-sided nut and bolt outside, is complementary with corresponding large-size; After inserting above-mentioned aid side tenon in the right-hand member square hole, then make plum blossom angle inner nut, bolt do forward and reverse rotation along with the forward and reverse rotation of square tenon.
On four rectangular surfaces of this sleeve right-hand member square hole, the oval steel ball bullet groove of an indent is respectively arranged, so that falling, two steel balls on the side's of making tenon tightly are positioned in the groove.
Staff skids in order to prevent to operate, and has rolled a circle decorative pattern at the sleeve cylindrical outer surface.
For specification place of production of indicating sleeve etc., be equipped with steel seal at the outer surface of sleeve plum blossom angle one side, use the digitized representation specification, English word is represented the place of production.
These 45 ° of step sleeve processing methods are as follows:
1, uses the round stock machining blanks, and on punch press, go out 12 plum blossom angles and square hole.
2, length overall is got at two ends, and in the lathe outer ring of getting on the bus, reaches corresponding size and 45 ° of gradients.
3, in the lathe bullet groove of rising to the bait, and at the outer cylinder surface annular knurl.
4, on planer, be positioned on the plum blossom dihedral sleeve outside cylinder and beat steel seal.
5, make quenching heat treatment, and to sleeve surface sandblast, matt chromium plating.
6, do torsional moment test, guarantee to reach certain torque value.
Square hole one end of this fastening nut and bolt 45 degree step sleeves is of a size of the unified specification size, can connect aids such as long extension bar and unify the square tenon of size, because of the design 45 degree gradient transition circle cambered surfaces bigger, nut, the bolt of sleeve other end plum blossom dihedral and large-size are complementary, thereby both saved material, improved operating efficiency again.
Description of drawings:
Fig. 1 is: fastening nut and 45 ° of step sleeves of bolt partial schematic sectional view.
Among the figure: (1) is 12 plum blossom angles, and (2) are square hole, and (3) are bullet groove, and (4) are annular knurl, and (5) are steel seal, and (6) are 45 ° of inclination arc surfaces.
Fig. 2 is: fastening nut and 45 ° of step sleeves of bolt side view.
Among the figure: (1) is 12 plum blossom angles, and (2) are square hole.
The specific embodiment:
The hollow polygon plum blossom of left end angle is 12 plum blossom angles (1), and the interior angle at 12 plum blossom angles is 120 °; Right-hand member is hollow cubic hole (2), and hollow cubic hole (2) can be connected with quick ratchet, long extension bar, so that torsion strengthens.The plum blossom angle (1) of sleeve is connected together by the arc surface (6) that tilts with (2) two external cylindrical surfaces in hollow cubic hole, and inclination arc surface (6) is 45 ° with the angle of above-mentioned two external cylindrical surfaces.
Its processing method is as follows:
1, adopt 40 chromium steel round stocks to be processed into blank, left end is gone out 12 plum blossom angles on punch press, and four the rectangular surfaces width in hollow cubic hole are 19 millimeters.
2, to get length overall be 72 millimeters at two ends on these 45 ° of step sleeves, turning on lathe, and hollow 12 the plum blossom angle sleeve outside diameters of left end are 65 millimeters, plum blossom angle sleeve cylindrical length is 41 millimeters.
3, the steel ball bullet groove (3) on lathe is risen to the bait (2) four rectangular surfaces in right-hand member hole, four directions is shaped as ellipse.
4, with lathe annular knurl on the sleeve external cylindrical surface, annular knurl (4) decorative pattern width is 9 millimeters.
5, roll out numeral and English words " CHINA " steel seal (5) with planer on the sleeve external cylindrical surface, steel seal (5) position is in the double dot dash line of Fig. 1 sleeve external cylindrical surface.
6, make quenching heat treatment, hardness is HRC39～45 °.
7, surface sand-blasting; Matt chromium plating, thickness of coating are not less than 0.01 millimeter, and outer surface requires the color and luster uniformity, defective such as plating leakage, stripping layer must not be arranged and burn, and inner surface spraying aluminium paint is modified.
Claims (4)
1, a kind of fastening nut and bolt 45 degree step sleeves, it is characterized in that the hollow polygon plum blossom dihedral of left end (1) and both outside cylinder of the hollow square hole of right-hand member (2) link together by 45 degree inclination arc surface (6) transition, left end outside cylinder diameter is greater than right-hand member outside cylinder diameter.
2, fastening nut according to claim 1 and bolt 45 degree step sleeves is characterized in that hollow polygon plum blossom dihedral (1) is 12 limit plum blossom dihedrals, and plum blossom angle interior angle is 120 °.
3, fastening nut according to claim 1 and bolt 45 degree step sleeves is characterized in that on four rectangular surfaces in the hollow cubic hole of right-hand member (2) a steel ball bullet groove (3) being arranged respectively, and it is shaped as ellipse.
4, fastening nut according to claim 1 and bolt 45 degree step sleeves is characterized in that annular knurl (4) and steel seal (5) are on the external cylindrical surface of sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062604 CN2748225Y (en) | 2004-07-12 | 2004-07-12 | 45-degree stepped sleeve for tightening nut and bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420062604 CN2748225Y (en) | 2004-07-12 | 2004-07-12 | 45-degree stepped sleeve for tightening nut and bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748225Y true CN2748225Y (en) | 2005-12-28 |
Family
ID=35719719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420062604 Expired - Fee Related CN2748225Y (en) | 2004-07-12 | 2004-07-12 | 45-degree stepped sleeve for tightening nut and bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748225Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400726A (en) * | 2014-03-17 | 2015-03-11 | 宁波市杰尔威工具有限公司 | Mercury matt sleeve and machining technology |
-
2004
- 2004-07-12 CN CN 200420062604 patent/CN2748225Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400726A (en) * | 2014-03-17 | 2015-03-11 | 宁波市杰尔威工具有限公司 | Mercury matt sleeve and machining technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105458992A (en) | Multifunctional combined socket spanner | |
| CN202187999U (en) | Combined nut | |
| CN2748225Y (en) | 45-degree stepped sleeve for tightening nut and bolt | |
| CN212311867U (en) | Multipurpose adjustable spanner | |
| CN107218286B (en) | Fastening external member | |
| CN205996866U (en) | A kind of interior Hexagonal jacket joint of tiltable angle | |
| CN213858984U (en) | Universal wrench for disassembling operation | |
| CN213352256U (en) | Bolt and nut taking-out tool | |
| CN2709108Y (en) | Straight sleeve for tightening nut and bolt | |
| CN201493814U (en) | Device for taking out broken pipe fitting | |
| CN108161806A (en) | A kind of Universal sleeves | |
| CN206175436U (en) | Bolt with hexagonal groove threaded end | |
| CN113089935A (en) | Combined sleeve for butt joint of reinforcing steel bars | |
| CN208584467U (en) | Fastener screws multi-functional conversion head | |
| CN217513773U (en) | Universal sleeve for pneumatic electric wrench | |
| CN2748231Y (en) | Stress application rod for connecting pull rod | |
| CN201461648U (en) | Expansion bolt of bipyramid nut | |
| CN212978133U (en) | Multi-specification wrench | |
| CN220660732U (en) | Lock nut and lock nut dismounting tool | |
| CN210318103U (en) | Circular slotted nut that theftproof performance is good | |
| CN219967774U (en) | Crystallizer quick assembly disassembly device | |
| CN220051628U (en) | Spanner extender capable of entering narrow space | |
| CN217168306U (en) | Double-end crank socket wrench matched with diesel engine for use | |
| CN220783814U (en) | Integrated broken wire taking out and repairing tool | |
| CN215240512U (en) | Combined circular buckle wrench |
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 |