CN109236837A - The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition - Google Patents
The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition Download PDFInfo
- Publication number
- CN109236837A CN109236837A CN201811381836.5A CN201811381836A CN109236837A CN 109236837 A CN109236837 A CN 109236837A CN 201811381836 A CN201811381836 A CN 201811381836A CN 109236837 A CN109236837 A CN 109236837A
- Authority
- CN
- China
- Prior art keywords
- rotary table
- nut
- opposition
- reversed
- bite
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 9
- 238000011017 operating method Methods 0.000 title claims abstract description 5
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
- F16B39/126—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
- F16B39/108—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt with a locking washer under the nut or bolt head having at least one tongue or lug folded against the nut or bolt head, or against the object itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
- F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition, it is interacted using the upright outer tooth of the reversed outer bite-block circle of opposition and the frustum cone side of rotary table hex nut, when screw thread pair pre-tightens, other than axial pre tightening force, it increases a radial forces more, forms pressure and frictional force bigger between screw thread pair.Simultaneously also as outer tooth and frustum cone side interact, an additional rubbing action point is increased again, increase additional pressure and frictional force, improve total frictional force limiting value, total frictional force limiting value is much larger than frictional force limiting value caused by common pretension bolt, its anti-loosing effect is more preferable, can prevent screw thread pair from relatively rotating.Reliability, practicability are good, can be used in severe impact, vibration, alternating load or the big occasion of temperature change, effectively reduce maintenance, maintenance to thread connection, improve safety, the utilization rate of equipment utilization.
Description
Technical field
The invention belongs to mechanical engineering threaded connection locking field, being related to one kind, to can make full use of friction locking, prevents
Thread connection loosens, and improves connection effect, reduces the outer bite-block circle of the reversed opposition of one kind and rotary table of maintenance, the maintenance of thread connection
The check bolt group and its operating method of hex nut composition.
Background technique
Various machines and component be unable to do without connector in being linked and packed.The quantity of connector accounts about machine components sum
The 60% of amount, wherein thread connection is in mechanical attachment using the most common form, has that structure is simple, connection is reliable, assembly and disassembly side
Just the advantages that, brings conveniently to mechanical industry.But it has an inevitable weakness, in severe impact, vibration or change
Under load effect, or when temperature change is big, thread connection is possible to loosen or even completely disengaged.In real life because
Thread connection loosens the product failure generated, machine failure, disintegration, or even causes the example of fatal crass commonplace.Therefore
The reliability for how guaranteeing thread connection, prevents thread connection from loosening, and is that product quality is effectively ensured, improves product reliability
Importance, locking thread problem have become the actual techniques problem of urgent need to resolve.
To solve the problems, such as loosening for connector, since thread connector be born, in the world the scientist of many countries with
Engineer has made a large amount of test and research.
There are many locking method, and by the difference of working principle, anti-loose method is divided into friction is locking, machinery is locking etc..Furthermore
There are also some special anti-loose methods, for example, between screw thread rivet welding, punching point is locking, coating adhesive is locking etc. screw thread pair.
Rubbing locking is a kind of most widely used locking mode, and this mode generates one between screw thread pair and do not become with external force
The normal pressure of change, to generate the frictional force that screw thread pair can be prevented to relatively rotate.This normal pressure can be by axial or simultaneously two
It is realized to collet threaded pair.Such as use elastic washer, double nut, self-locking nut and nylon anti-loose nut.It is this anti-
Loose measure formula is more convenient for the disassembly of nut, but the shock and vibration and varying load the case where, and bolt can be led because of relaxation at the beginning
Pretightning force decline is caused, with the increase of vibration number, pretightning force is gradually reduced, and nut will eventually be caused to loosen, thread connection
Failure.
The second way is mechanical locking.It is the relative rotation that screw thread pair is directly limited with retainer.Such as using split pin,
Series winding steel wire and reversed outer bite-block circle of opposition etc..This mode causes disassembly inconvenient.
Summary of the invention
The locking root problem of bolt-connection is to prevent the relative rotation of screw thread pair.Rubbing locking will prevent screw thread pair
It relatively rotates, just must try to increase the pressure and frictional force between screw thread pair, or increase rubbing action point simultaneously, increase additional
Frictional force, improve total frictional force limiting value, can just prevent screw thread pair from relatively rotating.
After material is certain, coefficient of friction can not just change again, only raising screw thread pair between interaction force or
Increase rubbing action point quantity.
After threaded pre-tightening, usually only by the effect of single axial pre tightening force, pretightning force is usually material yield strength σ s
50~70%, it is maximum no more than 80%, limit by improving pretightning force and improve the frictional force between screw thread pair.If we
As soon as external force laterally can added, the resultant force of the lateral external forces and axial pre tightening force is much larger than single axial pre tightening force,
Pressure and frictional force between the screw thread pair of formation is also just bigger, so that it may prevent screw thread pair from relatively rotating.
The present invention is exactly when making threaded pre-tightening with rotary table hex nut using a kind of reversed outer bite-block circle of opposition, not only by
Normal axial pre tightening force effect, while the effect also by a lateral external forces form bigger pressure between screw thread pair and rub
Wipe power.An additional rubbing action point is also added simultaneously, increases additional frictional force, improves total frictional force limiting value,
Prevent screw thread pair from relatively rotating.
The technical solution adopted by the present invention to solve the technical problems:
A kind of check bolt group of reversed opposition outer bite-block circle and rotary table hex nut composition, it is characterized in that: including reversed opposition
Outer bite-block circle, rotary table hex nut, conventional hexagonal nut, bolt；The outer bite-block circle plate elastic material system of the reversed opposition
At at least a pair of upright outer tooth on washer annulus, they are in axis both ends on same diameter line respectively, towards on the contrary；
Each outer tooth is respectively positioned on washer outer rim, uprightly, vertical with washer face, is arc-shaped or flat, each corresponding to outer tooth
Central angle less than 60 °；The rotary table hex nut is made of round estrade and two part of positive hexagonal column, and the outsole of rotary table connects
Positive hexagonal column is connect, the handle of rotary table is an end face of nut, and the side of rotary table dissipates inclination outward；Frustum cone height is greater than
The outer tooth of washer is high, in the axis projection region for the side that the outer tooth position of a washer is located at rotary table.
A kind of operating method of reversed opposition outer bite-block circle and the check bolt group of rotary table hex nut composition, feature
It is: is pre-tightened in use, first being coupled workpiece with conventional hexagonal nut；To reversely oppose screw rod on outer bite-block snare again, and one straight
The facade that vertical outer dental inlay conjunction is adjacent to hex nut is fixed, and the nut that another outer tooth is uprightly directed toward shank of bolt screws in
End；It is again that the rotary table end of nut is opposite with the reversed outer bite-block circle of opposition, screw-in screw rod, until nut will reversely oppose outer bite-block circle
It screws, stops screwing until reaching regulation maximum pretightning force.
The invention has the advantages that the rotary table of upright outer tooth and rotary table hex nut using the reversed outer bite-block circle of opposition
Side interaction other than axial pre tightening force, increases a radial forces more, forms screw thread when screw thread pair is pre-tightened
Bigger pressure and frictional force between pair.Simultaneously also as outer tooth and frustum cone side interaction, and increases one and additional rub
Position is wiped, additional pressure and frictional force are increased, improves total frictional force limiting value, total frictional force limiting value is much larger than general
Frictional force limiting value caused by logical pretension bolt, anti-loosing effect is more preferable, can prevent screw thread pair from relatively rotating.Reliability,
Practicability is good, can be used in severe impact, vibration, alternating load or the big occasion of temperature change, effectively reduce to thread connection
Maintenance, maintenance, improve safety, the utilization rate of equipment utilization.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is connection assembly axial cross-sectional views of the invention.
Fig. 2 is the top view of the reversed outer bite-block circle of opposition.
Fig. 3 is the A-A sectional view of the reversed outer bite-block circle top view of opposition.
Fig. 4 is rotary table hex nut axial section.
Fig. 5 is rotary table hex nut rotary table end elevation view.
Fig. 6 be frustum cone side be corrugated when rotary table end elevation view.
In figure:
The outer bite-block circle 1. the upright outer tooth 1 3. of conventional hexagonal nut 2. reversely opposes
4. the upright outer 2 6. rotary table hex nut of tooth of bolt 5.
7. rotary table 8. is coupled the coupled workpiece 2 of workpiece 1 9.
10. ripple cambered surface
Specific embodiment
In Fig. 1 embodiment, a kind of check bolt group of reversed opposition outer bite-block circle and rotary table hex nut composition, including
Conventional hexagonal nut (1), the outer bite-block circle (3) of reversed opposition, rotary table hex nut (6), bolt (4).The outer tooth of the reversed opposition
Washer (3) is made of thin plate elastic material, has flat uprightly outer tooth 1 (2), uprightly outer tooth 2 (5), outer tooth institute are right for arc-shaped
The central angle answered is less than 30 °；Upright outer tooth 1 (2) and upright outer tooth 2 (5) are in axis both ends on same diameter line respectively,
It is uprightly, vertical with washer (3) end face towards on the contrary, be respectively positioned on washer (3) outer rim；Upright outer tooth 1 (2) for and conventional hexagonal spiral shell
The facade of female (1) is adjacent to chimeric, guarantees that washer (3) do not produce relative rotation with hex nut (1), radius is equal to conventional hexagonal
Vertical range of the axis of nut (1) to facade, thickness of the height less than conventional hexagonal nut (1)；The rotary table hexagonal spiral shell
Female (6) half is round estrade, the other half hexagon cylinder that is positive, the side of rotary table dissipates inclination outward；Frustum cone height is greater than straight
Vertical outer tooth 2 (5) is high, and upright outer tooth 2 (5) position is located in the view field of frustum cone side.
It is pre-tightened in use, first being coupled workpiece (8.9) with conventional hexagonal nut (1)；To reversely oppose outer bite-block circle (3) again
It packs into screw rod (4), the chimeric facade for being adjacent to hex nut (1) of a upright outer tooth (2) is fixed, upright outer tooth 2 (5)
It is directed toward the nut screw terminal of shank of bolt (4)；Again relatively by the rotary table end of nut (6) and the reversed outer bite-block circle (3) of opposition, spiral shell is screwed in
Bar (4).Nut (6) constantly rotates, and the side (7) of rotary table also gradually moves down, and upright outer tooth 2 (5) gradually connects with the side of rotary table
The raw interaction of triggering.Because the side of rotary table dissipates inclination outward, expansion frustum cone side oppresses upright outer tooth 2 (5).Because straight
The vertical chimeric facade for being adjacent to hex nut (1) of outer tooth 1 (2), washer (3) do not produce relative rotation with shank of bolt (4), uprightly
Outer tooth 2 (5) generates flexible deformation and is inclined outwardly, and reaction gives nut (6) cross forces, at the same hex nut (1) also by
One cross force equal in magnitude, contrary.Nut (6) is more toward backspin, and the flexible deformation of upright outer tooth 2 (5) is bigger, uprightly
Outer tooth 2 (5) and the interaction force of nut (6) are bigger, and cross force suffered by hex nut (1) is also bigger.When nut (6) will be anti-
Bite-block circle (3) screws to outside opposition, when reaching regulation maximum pretightning force, does not only act upon on screw thread pair, the contact of two nuts
The axial force in face is maximum, and the mutually transverse active force of two nuts (1,6) is also maximum.The suffered cross of two nuts (1,6)
To active force action and reaction power each other, the both ends on same diameter line are acted on, it is equal in magnitude, it is contrary, it refers both to
To axle center.
Screw thread pair at this time is other than axial pre tightening force, and more radial forces, is formed bigger between screw thread pair
Pressure and frictional force.Simultaneously also as the side of outer tooth and rotary table interacts, and an additional rubbing action point is increased,
Increase additional frictional force, improve total frictional force limiting value, total frictional force limiting value is produced much larger than common pretension bolt
Raw frictional force limiting value, anti-loosing effect are also just more preferable, so that it may prevent screw thread pair from relatively rotating.
The side of rotary table hex nut (6) can be made a series of corrugated shape being made of continuous cambered surfaces, advantageous nut
(6) uprightly outer tooth 2 (5) is chimeric with ripple cambered surface (10) after screwing is engaged.The chimeric recess for being engaged effect and adjacent circular arc convex surface
There is very strong mechanical inhibition to the sliding of upright outer tooth 2 (5), has more locked screw thread pair, avoided screw thread pair is opposite from turning
It is dynamic.
Claims (2)
1. the reversely check bolt group of the outer bite-block circle of opposition and rotary table hex nut composition, it is characterized in that: including that reversed opposition is outer
Bite-block circle, rotary table hex nut, conventional hexagonal nut, bolt；The outer bite-block circle of the reversed opposition is made of plate elastic material,
At least a pair of upright outer tooth on washer annulus, they are in axis both ends on same diameter line respectively, towards on the contrary；Often
A outer tooth is respectively positioned on washer outer rim, uprightly, vertical with washer face, is arc-shaped or flat, each corresponding to outer tooth
Central angle is less than 60 °；The rotary table hex nut is made of round estrade and two part of positive hexagonal column, the outsole connection of rotary table
Positive hexagonal column, the handle of rotary table are an end face of nut, and the side of rotary table dissipates inclination outward；Frustum cone height is greater than pad
The outer tooth of circle is high, in the axis projection region for the side that the outer tooth position of a washer is located at rotary table.
2. the reversely operating method of the check bolt group of the outer bite-block circle of opposition and rotary table hex nut composition, it is characterized in that: using
When, first workpiece is coupled with conventional hexagonal nut and is pre-tightened；To reversely oppose screw rod on outer bite-block snare again, a upright outer dental inlay
The facade that conjunction is adjacent to hex nut is fixed, another outer tooth is uprightly directed toward the nut screw terminal of shank of bolt；Again will
The rotary table end of nut is opposite with the reversed outer bite-block circle of opposition, screws in screw rod, until nut screws the outer bite-block circle that reversely opposes, reaches
Stop screwing until regulation maximum pretightning force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381836.5A CN109236837A (en) | 2018-11-20 | 2018-11-20 | The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381836.5A CN109236837A (en) | 2018-11-20 | 2018-11-20 | The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109236837A true CN109236837A (en) | 2019-01-18 |
Family
ID=65076121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811381836.5A Pending CN109236837A (en) | 2018-11-20 | 2018-11-20 | The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059129A (en) * | 2019-12-03 | 2020-04-24 | 谭程瑞 | Elastic gasket interlocking check bolt assembly |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB272807A (en) * | 1927-02-04 | 1927-06-23 | Albert Klafke | Improvements in locks for nuts and bolt heads |
| US1643384A (en) * | 1926-10-14 | 1927-09-27 | Klafke Albert | Lock for nuts and screw heads |
| CN87105389A (en) * | 1986-07-31 | 1988-02-24 | 帕特里克·耶尔弗顿·威廉斯 | Self-locking nuts |
| JP2002098127A (en) * | 2000-09-26 | 2002-04-05 | Tcm Corp | Locking device for nut |
| JPWO2005080807A1 (en) * | 2004-02-06 | 2007-10-25 | 房夫 山田 | Fastening body with locking capability |
| CN200985940Y (en) * | 2006-12-14 | 2007-12-05 | 江苏江成冶金设备制造有限公司 | Threaded connection anti-loose fastener |
| CN205001348U (en) * | 2015-08-05 | 2016-01-27 | 上海电气凯士比核电泵阀有限公司 | Simple and easy two -way lock washer |
| CN105370702A (en) * | 2015-12-22 | 2016-03-02 | 华为技术有限公司 | Spring washer fastener |
| CN209067637U (en) * | 2018-11-20 | 2019-07-05 | 韦志锋 | The check bolt group of reversed opposition outer bite-block circle and rotary table hex nut composition |
-
2018
- 2018-11-20 CN CN201811381836.5A patent/CN109236837A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1643384A (en) * | 1926-10-14 | 1927-09-27 | Klafke Albert | Lock for nuts and screw heads |
| GB272807A (en) * | 1927-02-04 | 1927-06-23 | Albert Klafke | Improvements in locks for nuts and bolt heads |
| CN87105389A (en) * | 1986-07-31 | 1988-02-24 | 帕特里克·耶尔弗顿·威廉斯 | Self-locking nuts |
| JP2002098127A (en) * | 2000-09-26 | 2002-04-05 | Tcm Corp | Locking device for nut |
| JPWO2005080807A1 (en) * | 2004-02-06 | 2007-10-25 | 房夫 山田 | Fastening body with locking capability |
| CN200985940Y (en) * | 2006-12-14 | 2007-12-05 | 江苏江成冶金设备制造有限公司 | Threaded connection anti-loose fastener |
| CN205001348U (en) * | 2015-08-05 | 2016-01-27 | 上海电气凯士比核电泵阀有限公司 | Simple and easy two -way lock washer |
| CN105370702A (en) * | 2015-12-22 | 2016-03-02 | 华为技术有限公司 | Spring washer fastener |
| CN209067637U (en) * | 2018-11-20 | 2019-07-05 | 韦志锋 | The check bolt group of reversed opposition outer bite-block circle and rotary table hex nut composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059129A (en) * | 2019-12-03 | 2020-04-24 | 谭程瑞 | Elastic gasket interlocking check bolt assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201908932U (en) | Self-locking locknut assembly | |
| CN109826861A (en) | A kind of check bolt group and its operating method | |
| CN109185321A (en) | A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and annular groove nut composition | |
| CN111173830A (en) | Composite locknut | |
| KR20210002686A (en) | Double screw construction and its fastener | |
| CN209067640U (en) | A kind of check bolt group of stop washer and rotary table hex nut composition | |
| CN203809476U (en) | Eccentric self-locking stop nut | |
| CN108662005A (en) | A kind of special eccentric locking nut | |
| CN111577744A (en) | Never-loosening self-tightening bolt and nut sleeve system | |
| CN209083784U (en) | One kind is from torsion stop nut | |
| CN109236837A (en) | The check bolt group and its operating method of reversed opposition outer bite-block circle and rotary table hex nut composition | |
| CN109185322A (en) | A kind of pairs of anti-loose nut bolt group and its operating method with elastic bumps nut and rotary table hex nut composition | |
| CN109372880A (en) | A kind of anti-loosening thread | |
| CN209781425U (en) | A kind of anti-loosening bolt group | |
| CN209278317U (en) | A kind of pairs of anti-loose nut bolt group with elastic bumps nut and rotary table hex nut composition | |
| CN214661426U (en) | Check bolt group with internal thread regular polygon gasket | |
| WO2013081545A1 (en) | A reinforced locking washer | |
| CN116557401A (en) | Wedge-shaped double-gasket anti-loosening assembly | |
| CN109236838A (en) | A kind of the check bolt group and its operating method of stop washer and rotary table hex nut composition | |
| CN209067637U (en) | The check bolt group of reversed opposition outer bite-block circle and rotary table hex nut composition | |
| CN212838893U (en) | Design type positive and negative screw opposite-jacking nut self-locking system based on dimension of fastened piece | |
| CN112555266A (en) | Anti-loose bolt group consisting of nut with elastic bulge and gasket with spiral lifting groove | |
| CN211820332U (en) | Composite locknut | |
| CN214036474U (en) | An anti-loosening bolt group composed of an elastic raised nut and a gasket with a spiral rising groove | |
| CN118998184A (en) | Never-loosening screw assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190118 |