CN1067715A - Combined self-lock bolt - Google Patents
Combined self-lock bolt Download PDFInfo
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- CN1067715A CN1067715A CN 91103830 CN91103830A CN1067715A CN 1067715 A CN1067715 A CN 1067715A CN 91103830 CN91103830 CN 91103830 CN 91103830 A CN91103830 A CN 91103830A CN 1067715 A CN1067715 A CN 1067715A
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- screw
- bolt
- locking block
- nut
- locking
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Abstract
Combined self-lock bolt is made up of three parts: a main component, utilize standard bolt, near milling one translot and bore vertical hole and the make screw rod end; A locking block matches with translot, with master screw to cuing open, cut into then sheet and boring form; A Screw, the selection standard machine screw.Locking block is put into groove, and Screw inserts from vertical hole of screw rod end face, and pass the hole of locking block, and be screwed into the screw of cell wall, this combined self bolt and standard nut adapted, nut can freely tighten to the working position.If nut loosening rotates round about, the locking block screw thread is just stung the jack panel screw thread, prevents to become flexible.
Description
One, invention field
The invention belongs to the threaded fastener field, is exactly to improve bolt arrangement specifically, makes it to match with nut, connect reliably, and auto lock, locking.Main purpose is to provide a kind of advanced technology, the economical and practical universal product.
Two, prior art situation
Bolt in the bolt and nut auxiliary connection is divided into two, utilizes rubbing action, only allow nut to rotate, do not allow to invent already, be embodied in the following U. S. Patent: 514,570 to the technology that loosening direction is rotated to fastening direction; 537,244; 764,591; 915,217 and 4,309,140.
U. S. Patent 514,570,1894, the smooth Lee Van Cleef of inventor Si, at first a plain bolt along axis cleave in two (referring to Fig. 3), then wherein half opens one domaticly again, domatic and median plane intersects and forms a rib, near center line.When nut loosening, the screw thread of this half (being called as roll piece) is driven by the nut thread friction and rolls on second half median plane along rib, the diameter of thread is enlarged, so the screw thread of roll piece is stung the jack panel screw thread, stop relatively rotating of screw bolt and nut, promptly prevent further loosening.This is an original patent of invention, and other relevant patents all are that this patent is improved and developed.Because there is shortcoming in original patent of invention, one does not also obtain widespread usage over 100 years.Its major defect is:
1) is not suitable for producing in enormous quantities.In order to produce in batches, need to design a kind of special machine bed probably; And need formulate new standard;
2) waste material and machining period.The bolt cleave in two says it is so on the principle, in fact the two halves bolt can not one be split and get, and branch dissects and cuts the generation smear metal, and a bolt can only be used half as a result, wastes half;
3) weaken bolt strength.The two halves unbalance stress, and it is concentrated to produce stress, not as the plain bolt intensity height of same diameter;
4) transportation and storage inconvenience.Do not put on nut, bolt is two halves, and the cross section difference, and transportation and storage and use have all increased workload;
5) dismounting needs special tool;
6) can only be from the dismounting of nut one end, inconvenience is used for screw and connects;
7) difficulty is installed.In some cases, the two halves bolt nut difficulty of screwing on, two partial threads are difficult for arranging consistent.
U. S. Patent 537,244,1895, the smooth Lee Van Cleef of inventor Si is with original patent of invention difference, the thread section of bolt is tiltedly cutd open form two (referring to Fig. 4) of size, and a screw thread of big part is being peelled off several circles near the end, form smooth guide surface, so that install, just in order to overcome above-mentioned the 7th shortcoming.But this shortcoming does not overcome fully, has increased manufacturing procedure on the contrary.
U. S. Patent 764,591; 1904, inventor Hu Gesi made the sector crosssection strip to roll piece, be assemblied in the corresponding elongated slot interior (referring to Fig. 5) of bolt thread section, elongated slot is bigger in loosening direction gradient on one side, when roll piece rolls to this direction, wedge angle perk, i.e. partial screw threads enlarged-diameter and stop loosening.This overcomes to some extent to above-mentioned the 3rd shortcoming, but has increased difficulty to processing.
U. S. Patent 915,217; 1909, inventor La Weili was cut into stepped two sections to the bolt thread section, on the segment longitudinal plane of nut one end processing one domatic, a processing screwdriver slot (referring to Fig. 6) on end face.This to the above-mentioned the 2nd and the 4 two shortcoming overcome to some extent.
U. S. Patent 4,309,140; Nineteen eighty-two, people such as inventor Si Difen, similar with above-mentioned La Weili way, be keyhole (referring to Fig. 7) but open a hexagon through hole at two sections centers of bolt, can unblank from two ends with the key of identical cross-sectional shape.This has overcome above-mentioned the 6th shortcoming, has also increased processing difficulties certainly.
On principle, the self-locking screw of the above-mentioned type connects the locking form of locking than existing general bolt, as spring washer, and lock washer, locking nut, cotter pin or drift bolt etc. has superiority, compares spring washer, lock washer, locking nut is reliable, than convenient with cotter pin and drift bolt.Problem is still to have structural imperfection, need overcome, and just might be extensive use of.
Three, goal of the invention
It is reliable that the present invention's purpose is to design a kind of technology, produces profit, and self-locking screw easy to use at the various shortcomings of above-mentioned original invention, improves one by one, to reach following specific purposes:
1) keep the inheritance of bolt production technology, designing the existing process equipment of a kind of utilization just can mass-produced self-locking screw;
2) save material, reduce man-hour;
3) the bolt join strength that maintains the standard;
4) keep the bolt integrity, be convenient to keeping transportation and use;
5) be convenient to change, do not need special tool;
6) can dismantle from nut one end;
7) installation and maintenance are convenient, and use the same with plain bolt or screw do not need special technical requirement to the assembling service worker.
Four, invention embodiment figure
Fig. 8 combined self bolt three-dimensional exploded view.
Fig. 9 combined self screw bolt and nut auxiliary connection sectional view.
The 1-1 sectional drawing of Figure 10 Fig. 9.
Figure 11 combined self bolt evolution scheme (1) partial sectional view.
Figure 12 combined self bolt evolution scheme (2) sectional drawing.
Figure 13 combined self bolt evolution scheme (3) partial sectional view.
Figure 14 combined self bolt evolution scheme (4) partial sectional view.
The I of Figure 15 Figure 14-I sectional drawing.
Code name explanation among the figure: the code name among the main embodiment figure is ordinary numbers and letter, and the code name among evolution scheme (1) figure is a corresponding numeral and alphabetical, but add a left-falling stroke in its upper right corner, code name also is a corresponding numeral and alphabetical among evolution scheme (2) figure, but add two left-falling strokes in its upper right corner, the code name numeral and the alphabetical lower right corner add 1 among evolution scheme (3) figure.Evolution scheme (4) adds 2 in the lower right corner.
10/10 '/10 "/10
1/ 10
2The combined self bolt
11/11 '/11
1/ 11
2Bolt head
12 "/12
2The groove inclined-plane
13 "/13
2The bottom surface of groove
14 "/14
2The intersection of 12 " and 13 "
16/16 "/16
1/ 16
2The screw rod end face
17/17 " transverse groove on the screw rod
18/18 " screw rod perforate 26/26 " and 27/27 " center line
19/19 "/19
1/ 19
2The screw rod center line
19a/19a '/19
1a/ 19
2aScrew rod central horizontal face
19b/19b '/19
2bScrew rod central vertical face
20/20 ' combined bolt main component
21/21 ' screw rod
22/22 ' screw thread
The left wall of 23/23 ' groove 17
The right wall of 24 grooves 17
The bottom plane of 25 grooves 17
26/26 ' cell wall 23/23 ' screw or unthreaded hole upward
27/27 ' cell wall 24/24 ' screw or unthreaded hole upward
30/30 '/30
1/ 30
2Combined self bolt locking block
31/31
2The bottom surface of locking block 30 or 30
2Handle
32/32
2 Locking block 30 or 30
2Screw thread
The left wall of 33 locking blocks 30
The right wall of 34 locking blocks 30
35 through holes from wall 33 to 34
38/38
2End-face hole in the center line/evolution scheme in hole 35 (4)
The center line of 39 screw threads 32
Edema with the heart involved plane among the 39a screw thread 32
Heart vertical surface among the 39b screw thread 32
40 machine screws
The screw thread of 41 machine screws 40
The screw head of 42 machine screws 40
43 machine screw head load anchor rings
Driver flutes on the 48 machine screw heads
50/50 ' standard nut
The screw thread of 52 nuts 50
The distance of e/e " from center line 18 to central vertical face 19a or 19a "
The distance of f/f " from center line 18 to central horizontal face 19a or 19a "
The distance of t/t " 31 to central horizontal face 19a/19a from the bottom surface "
E "/E
2" and bottom surface 13 " intersection promptly 14 from the inclined-plane 12 " to the central vertical identity distance from
L
2The width of groove 17
L
3Locking block thickness
The diameter of d screw rod 10
d
1The diameter in hole 26
d
2The diameter of machine screw screw thread 41
d
3The diameter in hole 35
d
4The diameter in hole 27
d
5The diameter of machine screw head 42
α/α '/α "/α
2Angle
Five, invention embodiment explanation
Referring to Fig. 8, combined self bolt 10 is made up of three parts: main component 20, locking block 30, machine screw 40.Main component 20 strap bolt heads 11, screw rod 21, right-hand thread 22, groove 17 groove width L
2Cell wall 23 band screws 26, cell wall 24 band unthreaded holes 27, main component center line 19 in-and-out bolt heads 11 and screw rod end face 16, central vertical face 19b and central horizontal face 19a are in the screw rod vertical and intersectant centerline, screw rod 21 is divided into quarter, and cell wall 23 and 24 is all perpendicular to central horizontal face 19a, with the bottom land Plane intersects.Referring to Figure 10, groove bottom 25 and central horizontal face 19a intersect near the right hand edge, and angle is α, and the distance that right hand edge exceeds intersection point is t.See that again Fig. 8 hole 27 is positioned at the upper left part of screw rod 21 slot cross-sections, its diameter is d
4, with the diameter d of machine screw head 42
5Running fit, from end face 16 groove walls 24, hole depth is the distance L i of end face 16 to wall 24, and hole 27 center lines 18 are parallel to central horizontal face 19a, and screw 26 diameters are d
1, directly go into the body of rod, degree of depth 2-3d along center line 18
1Figure 10 illustrate center line 18 to central vertical face 19b apart from e, to the central horizontal identity distance from f.
See Fig. 8 again, the bottom surface 31 of locking block 30 is parallel to the horizontal plane 39a of thread center, and two plan ranges are t, and 39b is thread center's vertical surface, intersects at thread center's line 39 with the horizontal plane 39a of thread center.The two side 33 of locking block and 34 is perpendicular to central horizontal face 39a, and the distance of two side is that locking block thickness is L
3, the right-hand thread 32 on the locking block arc surface, the diameter in hole 35 are d
3Be slightly larger than the diameter d of screw 41
2, centerline hole 38 parallel center lines 39.Well width L
2Be slightly larger than locking block thickness L
3
The screw diameter of machine screw 40 is d
2, the diameter of screw head 42 is d
5, the driver flutes 48 on the screw head end face, screw head annular stress surface 43.
Above-mentioned main embodiment can have multiple differentiation.Figure 11, Figure 12, Figure 13, Figure 14 and 15 represent evolution scheme 1 and evolution scheme 2, evolution scheme 3 and evolution scheme 4 respectively.In evolution scheme, continue to use the code name of using in the major programme, but add in the corresponding code name upper right corner ' or " or the lower right corner add 1 or 2 to show difference.It is partly all identical with major programme not add explanation.
Evolution scheme 2, referring to Figure 12, be that with the major programme difference short slot bottom surface 25 makes two faces 12 " and 13 " into, bottom surface 13 " is parallel to central horizontal face 19 " a, exceed distance and be t ", 12 " they being the inclined-plane, with horizontal plane 13 " are intersected; angle is α " and, the intersection 14 of 12 " and 13 " " with central vertical face 19 " b distance is E ".
Evolution scheme 3 referring to Figure 13, is machine screw is made into Cock screw with evolution scheme 2 differences.
Evolution scheme 4 referring to Figure 14 and Figure 15, with evolution scheme 3 differences, has been removed Cock screw, uses screwdriver fixed locking block position during dismounting.
Six, method of manufacture and use thereof
The present invention's combined self bolt manufacturing method is as follows:
Locking block 30 can adopt master screw to process, at first on milling machine to cutting away half, cut into piece then, at last in drilling machine boring 35.
Screw 40 selection standard machine screws.
Above-mentioned three become the combined self bolt product of three one the same with the plain bolt product in the manufacturing shop combine and assemble, can with the supporting use of corresponding standard nut, constitute the self-locking screw auxiliary connection.Nut 50 can be screwed on the bolt 10 by conventional method, can be screwed to position as shown in Figure 9 or the position of one, two button, i.e. working position before and after it always.If screw rod is motionless, nut dextrorotation is tightened, and the screw thread 32 of locking block 30 becomes a continuous thread with screw thread 22 auto arrangement of main component 20, and this state claims original state as shown in figure 10, can continue to tighten to the working position at this state lower nut.If vibrated, nut rotates to loosening direction, locking block 30 is just driven around screw 40 rotations by the screw thread friction torque, bottom surface 25 is left in bottom surface 31, and screw thread 22 and 32 common combination diameter promptly assemble enlarged-diameter, the radial and axial relatively displacement of both generations, threaded line is interrupted dislocation, and among nut thread 52, it is loosening to stop nut 50 to continue with regard to jam-packed for screw thread 32.This is called locking state.
If dismounting nut 50 at first turns nut 50 once to tightening direction, drive locking block 30 and be returned to original state, make two-part screw thread 22 consistent continuously with 32, then, tightening machine screw 40, screw head load-carrying surface 43 is pressed on the locking block sidewall 34, locking block is fixed on original state; Just can unload lower nut 50 by conventional method then.
The auto lock bolt is connected firmly; Locking reliable, if behind fastening nut, the people is for giving an earlier loosening lower nut, and promptly anti-twisting arrived locking state, will be perfectly safe especially.
The accurate position of center line 18, i.e. e, the size of the size at f value and α angle and the diameter d of bolt 10 and the precision of screw thread 22,32 and 52, the gap is relevant.The big more e of d value and Screw Thread Fit Clearance, f and α value are also answered corresponding increase, make locking block 30 rotations produce enough locking torques.
Screw 40 plays big effect, and the one, 20 and 30 two are fused, two is rotating centers of 30, the 3rd, the key of unblanking.
It has replaced U. S. Patent 514,570; 537,591; Rolling rib in 915,217 also replaces U. S. Patent 764,591; With 4,309, the special tool in 140.Evolution scheme 2 has kept the original patent of invention 514,570 of the U.S.; Rolling rib in (1894) is to replace the effect of the rotating center of Screw in the major programme.So behind nut screwing clamping, take off Screw, still do not lose the locking effect of self-locking.This scheme can prevent that Screw is lost and self-locking was lost efficacy, and can prevent that also the inoperative personnel dismantle arbitrarily, if particularly Screw is made into non-tender, more can play effective anti-theft and anti-damage effect.
Evolution scheme 3 is further differentiation of differentiation case 2, and machine screw is used instead Cock screw.Unthreaded hole 27 " make the screw corresponding with Cock screw into, all can cancel by screw 26 " and unthreaded hole 35 ".
Evolution scheme 4 is the further differentiation of evolution scheme 3, removes and marks closely screw, and is combined integrated by main component and locking block self structure, and has auto-lock function.
Through above-mentioned explanation as can be known, the present invention's combined self bolt, self-locking screw shortcoming to original invention of the U.S. and improvement invention subsequently overcomes one by one, reservation is divided into two, condition each other, utilize friction to form the advantage of auto-lock function, increased that two combine into one, the characteristic of and complex optimum big with little system.
Patent all was by different way whole bolt to be divided into two in the past, the patent of present patent application application is not only with unique way and is divided into two, main is that two combine into one, and consider to be divided into two from being convenient to the angle that two combine into one, be not only to be connected firmly and auto-lock function reliable, and to reduce and produce investment and cost of production, save raw material and machining period, keep original bolt strength, be convenient to the keeping transportation, be convenient to standardization, maintenance easy to use is convenient to replace existing some locking locking device that is threaded.The combined self bolt of present patent application application has following advantage:
1) production original capital is little, increases subsequent handling on former bolt production line, utilizes plain-milling machine, and drilling machine can be produced in batches.
2) the locking block size is little, saves material and man-hour;
3) the locking block short slot is near the screw rod tail end, and unlikely weakening intensity is detained in load-carrying surface first because of the dangerouse cross-section that is threaded, and reaches place, transition section (referring to Fig. 1 and Fig. 2);
4) bolt is a composite entity, is convenient to transportation and storage;
5) do not need special tool:
6) can change nut from the bolt head direction;
7) three one are convenient to match nut, are convenient to mounting or dismounting.
In addition, adopt this combined self bolt, need not use plain cushion, spring washer, lock washer, binding nut, self-locking nut, spring bolt, locking wedge etc., i.e. economical with materials (with the M20 bolt is example, and each self-locking screw is saved 20 grams than corresponding hexagonal grooved nut and cotter pin lock bolt), save man-hour, also conserve space.So the assembling lock bolt can extensively replace plain bolt, and the locking anti-loose structure, be used for aircraft, rocket, automobile, train, bicycle, boats and ships, railway, bridge does not all have can not.Be particularly suitable for aviation usefulness, because principle such as it meets the minimum weight minimum space, and is the most safe and reliable.
Claims (6)
1, the combined self-lock bolt auxiliary connection comprises:
(1) main component utilizes plain bolt, radially opens a semicircle or fan groove at screw rod tail, and the bottom surface of groove favours screw rod central horizontal face, and two walls of groove respectively have a hole, and leaning on the first side's of bolt hole is screw, and the hole that communicates with the screw rod end face is a unthreaded hole;
(2) locking blocks match with short slot on the main component, like semilune, the screw thread consistent with main component are arranged on the cambered surface, and a through hole is arranged between two sectors;
(3) machine screws, knob flat-top, band driver flutes;
(4) standard nuts.
Said locking block is put into said short slot, said machine screw is inserted from the hole of main component screw rod end, pass the hole of locking block, and be screwed into the screw of cell wall, make the machine screw head concordant, just constitute the combined self bolt of three one with the screw rod end face.Said standard nut matches with it, rotates to tightening direction, and the one side of locking block circular hole is close to the machine screw rotation, makes its bottom surface by past bottom land edge, and two-part screw thread auto arrangement becomes continuous helix, and tightens to the working position always.If the loosening direction rotation of nut picture, the frictional force of nut thread and locking block screw thread drives locking block and rotates the edge that leaves screw slot around Screw, make two-part screw thread common combination enlarged-diameter, the locking block thread biting locking is among nut thread, and it is loosening that group is ended the nut continuation automatically.If tighten Screw, locking block is fixed on the position of original state, just detachable lower nut.
2, the short slot bottom surface on the main component screw rod in above-mentioned first requirement, by the single inclined-plane with respect to the central horizontal face, the plane that instead is parallel to the central horizontal face adds the inclined-plane, and two Plane intersects form the rolling rib in vertical central plane left side certain distance.Make when not having tingle still have auto-lock function.
3, above-mentioned second require in Screw use Cock screw instead, be screwed into corresponding screw, locking block is pressed in the short slot of main component, work being connected and unblanking positioning action.
4, remove Cock screw in above-mentioned the 3rd requirement, change by main component and locking block self structure Assembly and be integral, and have the self-locking locking functions.
5, the Screw in above-mentioned first, second, third requirement all changes from insertion of bolt head direction and operation.Locking block in the 4th requirement changes from the bolt head direction to be operated.
6, above-mentioned the 3rd the requirement nut check that is applied to bicycle and other axletrees is locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103830 CN1026518C (en) | 1991-06-13 | 1991-06-13 | Combined self-lock bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103830 CN1026518C (en) | 1991-06-13 | 1991-06-13 | Combined self-lock bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1067715A true CN1067715A (en) | 1993-01-06 |
| CN1026518C CN1026518C (en) | 1994-11-09 |
Family
ID=4906293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91103830 Expired - Fee Related CN1026518C (en) | 1991-06-13 | 1991-06-13 | Combined self-lock bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026518C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369038A (en) * | 2014-10-15 | 2015-02-25 | 中国航空工业集团公司北京航空精密机械研究所 | Looseness-prevention and locking structure for fixing tool to spindle nose |
| CN104912900A (en) * | 2014-03-11 | 2015-09-16 | 杭州巨星工具有限公司 | Anti-loosening thread assembly |
| CN110281566A (en) * | 2019-06-21 | 2019-09-27 | 江苏华宏科技股份有限公司 | A kind of hydraulic press-packing |
| CN112211083A (en) * | 2020-11-10 | 2021-01-12 | 湖南工学院 | Steel-concrete composite beam slab for small bridge and culvert and production method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737835B (en) * | 2008-11-26 | 2011-06-29 | 博西华电器（江苏）有限公司 | Range hood |
-
1991
- 1991-06-13 CN CN 91103830 patent/CN1026518C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912900A (en) * | 2014-03-11 | 2015-09-16 | 杭州巨星工具有限公司 | Anti-loosening thread assembly |
| CN104912900B (en) * | 2014-03-11 | 2019-05-07 | 杭州巨星工具有限公司 | Checknut component |
| CN104369038A (en) * | 2014-10-15 | 2015-02-25 | 中国航空工业集团公司北京航空精密机械研究所 | Looseness-prevention and locking structure for fixing tool to spindle nose |
| CN104369038B (en) * | 2014-10-15 | 2017-05-03 | 中国航空工业集团公司北京航空精密机械研究所 | Looseness-prevention and locking structure for fixing tool to spindle nose |
| CN110281566A (en) * | 2019-06-21 | 2019-09-27 | 江苏华宏科技股份有限公司 | A kind of hydraulic press-packing |
| CN110281566B (en) * | 2019-06-21 | 2024-04-12 | 江苏华宏科技股份有限公司 | Hydraulic packer |
| CN112211083A (en) * | 2020-11-10 | 2021-01-12 | 湖南工学院 | Steel-concrete composite beam slab for small bridge and culvert and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1026518C (en) | 1994-11-09 |
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