CN105114436A - Interlocked stop nut assembly - Google Patents
Interlocked stop nut assembly Download PDFInfo
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- CN105114436A CN105114436A CN201510506640.4A CN201510506640A CN105114436A CN 105114436 A CN105114436 A CN 105114436A CN 201510506640 A CN201510506640 A CN 201510506640A CN 105114436 A CN105114436 A CN 105114436A
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- nut
- eccentric
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- eccentric nut
- pad
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Abstract
The invention discloses an interlocked stop nut assembly. The interlocked stop nut assembly comprises an eccentric nut, wherein a lower tapered boss is arranged at the lower end of the eccentric nut, the center of the lower tapered boss is not coincident with the thread center of the eccentric nut, and the eccentric quantity of the lower tapered boss is fit clearance between the eccentric nut and a bolt; a spacer is arranged at the lower part of the eccentric nut in a matched manner, a groove matched with the tapered boss at the lower end of the eccentric nut is formed in the spacer, and the center of the groove is coincident with the center of a center hole of the spacer. Compared with the prior art, the interlocked stop nut assembly is simple in structure, reasonable in bolt stress and tight in connection, looseness does not exist, and the interlocked stop nut assembly can bear vibration with large-torque impact force.
Description
Technical field
The invention belongs to connection technical field of fastening, more particularly, relate to a kind of fastening interlocking anti-loosen screw nut component adapting to impulsive load.
Background technique
Nut is the most frequently used connection fastening piece of mechanical field, the nut of general use is common standard fastening piece mostly, under the effect of shock and vibration or heavy load, frictional force between screw pair reduces or pop-off gradually, thus it is loosening to occur being threaded, even fastening piece comes off, loses, and machinery can be made thus to break down.Under a lot of occasion, people can use lock nut to replace common standard nut at present, in case nut occurs loosening phenomenon in the process used.But the lock nut complex structure used now, manufacture cost is high, and is destructive locking mode mostly, and nut connects fastening rear dismounting difficulty, can not again utilize.
Authorization Notice No. CN201705787U, authorized announcement date 2011.01.12 discloses a kind of subassembly of lock bolt, comprise bolt and supporting packing ring, the lower end surface of bolt head is provided with continuous print locking teeth, on the upper-end surface of packing ring, also corresponding coincideing is provided with continuous print locking teeth, forms locking on-slip cooperating structure.This bolt head is provided with locking teeth, and supporting washer face also has the corresponding locking teeth that coincide, and both contact and coordinate rear tightness very good, and get loose even if also can not relatively rotate when high vibration, locking fastening performance is very reliable.The locking teeth of this chek bolt only just can play a role after fastening locking, and when after junction plane wearing and tearing, locking teeth role is very limited, and can not bear the vibration of the impact force of high pulling torque.
Summary of the invention
For solving the above-mentioned defect that prior art exists, the object of the present invention is to provide a kind of structure simple, rationally bolt strained, connecting fastening, there will not be loosening, the interlocking anti-loosen screw nut component of the vibration of high pulling torque impact force can be born.
For achieving the above object, the technical solution used in the present invention: this interlocking anti-loosen screw nut component, it is characterized in that: there is eccentric nut, described eccentric nut lower end is provided with inferior pyramidal boss, the described center of inferior pyramidal boss does not overlap with the thread center of eccentric nut, its offset is the matching gap sum that the matching gap of eccentric nut and bolt adds Upper gasket and bolt, described eccentric nut bottom is combined with pad, there is above described pad the groove coordinated with the cone boss of described eccentric nut lower end, the center superposition of the center of described groove and the center hole of pad.
The end face of described pad is provided with anti-slip veins.
The downside of described eccentric nut is provided with bead.
The center hole of described pad is tapped hole, and the circumference of described pad has the chuck facilitating instrument to lock.
The upper end of described eccentric nut is provided with upper conical boss, the described center of upper conical boss does not overlap with the thread center of eccentric nut, its offset is the matching gap of eccentric nut and bolt, the upper conical boss of described eccentric nut is combined with upper cap nut, one end of upper cap nut has the upper groove coordinated with the cone boss on eccentric nut top, the center of described upper groove and the center superposition of upper cap nut screw thread.
The downside of described upper cap nut is provided with bead.
The downside of described lower nut is provided with bead.
Adopt the beneficial effect of technique scheme: this interlocking anti-loosen screw nut component is made up of eccentric nut and the pad that coordinates with it, eccentric nut lower end is provided with inferior pyramidal boss, the described center of inferior pyramidal boss does not overlap with the thread center of eccentric nut, described eccentric nut bottom is combined with pad, there is the groove coordinated with the cone boss of described eccentric nut lower end, the center superposition of the center of described groove and the center hole of pad above described pad.When above-mentioned two assemblies are fastening, pad is first sleeved on bolt, by eccentric nut, it is compressed again, when the process compressed, the inferior pyramidal boss of eccentric nut lower end stretches in the groove of its pad, because the center of inferior pyramidal boss does not overlap with the thread center of eccentric nut, in the process that eccentric nut and bolt screw, pad firmly pulls eccentric nut to side, offset because of the center of inferior pyramidal boss and the thread center of eccentric nut is the matching gap sum that the matching gap of eccentric nut and bolt adds Upper gasket and bolt, therefore under pad pulls, eccentric nut is pulling the matching gap between side and bolt to eliminating, the internal thread of eccentric nut is closely compressed with the outside thread of bolt contact, add the soundness that eccentric nut is connected with bolt thread tight mesh, reach quick mounting and locking object.Be provided with anti-slip veins at the end face of pad, when pad is compacted, anti-slip veins closely with absorption surface, anti-slip veins can prevent oppositely getting loose of pad, plays locking effect.Be provided with bead in the downside of eccentric nut, when using forced locking device to screw eccentric nut, bead can play the role of positioning, easy-to-operat.
The center hole of described pad is tapped hole, and the circumference of described pad has the chuck facilitating instrument to lock, and this pad is actual defines a kind of common nut structure, with eccentric nut with the use of time as a lower nut.The upper conical boss consistent with inferior pyramidal boss structure is also provided with in the upper end of described eccentric nut, the upper conical boss of described eccentric nut is combined with upper cap nut, one end of upper cap nut has the upper groove coordinated with the cone boss on eccentric nut top, the center of described upper groove and the center superposition of upper cap nut screw thread.The fastening principle of locking of the nut assembly that these three assemblies are formed: be utilize the cone boss at eccentric nut two ends and nut thread to have certain eccentric structure; When spinning fastening, first lower nut screws compression on bolt and needs fastening object, upper recess thereof groove coordinates with the cone boss of eccentric nut bottom, screw eccentric nut, under the wobbler action of eccentric nut, the side of lower nut is made to be close to bolt joined together, matching gap between both eliminations contact, increases contact friction force between the two; Under reaction force, make the opposite side of eccentric nut also be close to bolt, equally, also eliminate the gap between eccentric nut and bolt joined together, increase contact friction force between the two; In the upside of eccentric nut, be also combined with the upper cap nut of upper groove, the same lower nut of its action effect after upper cap nut screws.Like this, by on, the fastener assembly that lower nut and eccentric nut are formed is to after bolton, bolt is formed the position that three sections of threads closely engage contact, these three close contact positions connect and are distributed on bolt and are arranged in both sides, the normal vibration shearing force that dispersion abatement bolt is subject to, bolt and upper and lower nut thread, coordinate between eccentric nut screw thread and eliminate tolerance fit gap, specific closely joggle(d) joint touch pressure is had between screw thread when screwing, add the frictional force of symmetrical interlock fit between screw thread, prevent nut revolving under vibrating conditions from moving back loosening problem, anti-loosing effect is good.Described eccentric nut secure component side is equipped with bead, and when using forced locking device to screw eccentric nut, bead can play the role of positioning, easy-to-operat.
the present invention interlocks anti-loosen screw nut component advantage and is:
1, tapered centre nut and bolt interlocking threads effective length large;
2, the conical surface of the tapered cup nut at center has normal vibration resolution of forces transmission consumption, the interlocking threads of protection tight mesh;
3, three grades of interlocking structures, form several any forces engaging locking each other that three sections of cambered surface screw threads are symmetrical, eliminate tolerance fit play between bolt, nut thread engagement; More effectively preventing helical from getting loose because vibrating to revolve to move back, under being suitable for various environment, carrying out effectively fastening to different, that moment of torsion is different, normal force the is different parts of the vibration frequency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation that the present invention assembles;
Fig. 2 is the stereogram of Fig. 1;
Fig. 3 is the structural representation of eccentric nut;
Fig. 4 is the stereogram of Fig. 3;
Fig. 5 is the structural representation of the eccentric nut of band bead;
Fig. 6 is the structural representation of pad;
Fig. 7 is the stereogram of Fig. 6;
The stereogram of the pad of Fig. 8 anti-slip veins;
Fig. 9 is the stereogram being with the eccentric nut of bead and pad to assemble;
Figure 10 is the stereogram that the eccentric nut of band bead assembles with the pad of band anti-slip veins;
Figure 11 is the structural representation of lower nut;
Figure 12 is the stereogram of Figure 11;
Figure 13 is the nut assembly structural representation that three assemblies are formed;
Figure 14 is the structural representation of upper cap nut;
Figure 15 is the structural representation of the upper cap nut of band bead;
Figure 16 is the structural representation of eccentric nut;
Figure 17 is the stereogram of Figure 16;
Figure 18 is the stereogram of the eccentric nut of band bead;
Figure 19 is the eccentric nut of band bead and the stereogram of upper and lower nut assembling;
Figure 20 is eccentric nut and the assembling stereogram of upper and lower nut all with bead.
Embodiment
The interlocking anti-loosen screw nut component be made up of two assemblies as shown in Figure 1, 2, is made up of eccentric nut 2 and pad 3, and it is fastening that eccentric nut 2 and pad 3 two assembly engagement sleeves are contained in for parts on bolt 4.As shown in Figure 3,4, described eccentric nut lower end is provided with inferior pyramidal boss 2-2, and the described center of inferior pyramidal boss does not overlap with the thread center of eccentric nut, and its offset a is the matching gap sum that the matching gap of eccentric nut and bolt adds Upper gasket and bolt.Screw eccentric nut for convenience of forced locking device, as shown in Fig. 5,9, be provided with bead 2-3 in the lower edge of eccentric nut, bead can play the positioning action to forced locking device, facilitates the screwing operations of eccentric nut.As shown in Figure 6,7, described pad 3 has the groove 3-1 coordinated with the inferior pyramidal boss 2-2 of described eccentric nut lower end, the center superposition of the center of described groove and the center hole of pad above.When above-mentioned two assemblies coordinate secure component with bolt, pad is first sleeved on bolt 4, eccentric nut 2 screws into bolt 4, screw and make the inferior pyramidal boss 2-2 of eccentric nut 2 stretch in the groove 3-1 of pad 3, in the process compressing eccentric nut 2, because the thread center of eccentric nut 2 and inferior pyramidal boss are eccentric structures, inferior pyramidal boss in the process moved down to the direction biased washer of offset, thus make pad be close to bolt by push-and-pull side, thus eliminate the gap between pad one semicircle side and bolt.Meanwhile, eccentric nut, under the push-and-pull of pad reaction forces, is eliminated eccentric nut by the matching gap of drawing between side and bolt, thus is increased the screw-thread fit frictional force between eccentric nut and bolt, reach the loosening problem preventing screw-threaded coupling.This structure can realize quick locking, and anti-loosing effect is good.For increasing the frictional force between described pad 3 and fastening parts, as shown in Fig. 8,10, anti-slip veins 3-3 is provided with at the end face of described pad, after eccentric nut 2 compress gasket 3, anti-slip veins 3-3 on pad 3 and form the anti-loose structure of " occlusion " between the parts 3 be fixed, pad is not easy to loosen, and reaches better the effect that eccentric nut under vibration can not loosen.
As shown in Figure 11,12, the center hole of described pad 3 is processed with the internal thread 3-2 coordinated with bolt, and the circumference of pad is processed into the chuck 3-4 having and facilitate instrument to lock, and makes pad 3 form nut structure.When locking, lower nut first screws on bolt, screwed by eccentric nut again and it is compressed, cone boss due to eccentric nut is eccentric structure, lower eccentric nut and lower nut carry out tractive each other, the matching gap of both eliminations in both sides respectively and between bolt, realizes closely cooperating of eccentric nut and lower nut and bolt, reaches anti-loosing effect.
The interlocking anti-loosen screw nut component of three assemblies as seen in figs. 13-20, wherein, as Figure 16, 17, the eccentric nut 2 be positioned in the middle part of assembly shown in 18, described eccentric nut two ends are respectively equipped with cone boss, be respectively upper conical boss 2-1 and inferior pyramidal boss 2-2, on, the center of inferior pyramidal boss is coaxial configuration, but on described, the center of inferior pyramidal boss does not overlap with the thread center of eccentric nut, its offset is the matching gap a of eccentric nut and bolt, as Figure 13, described in 14, the upper end of eccentric nut is combined with upper cap nut 1, one end of upper cap nut has the upper groove 1-1 coordinated with the upper conical boss 2-1 on eccentric nut top, the center of described upper groove 1-1 and the center superposition of upper cap nut screw thread.As shown in Figure 15,20, for convenience of forced locking device to the positioning and locking of upper cap nut, the lower edge of described upper cap nut 1 has bead 1-3, expediently the screwing operations of nut.The lower end of described eccentric nut is combined with lower nut 3, and one end of lower nut has the low groove 3-1 coordinated with the inferior pyramidal boss 2-2 of eccentric nut lower end, the center of described low groove and the center superposition of lower nut screw thread.As shown in Figure 18,19, described eccentric nut is filled with bead 2-3 in secure component side, and this bead plays positioning action, easy-to-operat to when using forced locking device fastening to eccentric nut.
This interlocking anti-loosen screw nut component in use, first be tightened on bolt 4 by lower nut spiral shell 3 and workpiece is fixed, again eccentric nut 2 is screwed in bolt 4, the inferior pyramidal boss 2-2 cooperation of eccentric nut 2 lower end is stretched in the low groove 3-1 of lower nut spiral shell 3, screw eccentric nut 2, the bead 2-3 of the secure component side of eccentric nut has the effect to wrench or forced locking device location.Because the upper conical boss 2-1 on eccentric nut 2 and nut center are eccentric structure, when eccentric nut 2 screws, lower nut 3 pairs of eccentric nuts 2 have the pulling force of side direction, and the nut screw connection gap of lower nut 3 and the corresponding side of eccentric nut 2 is eliminated.Again upper cap nut 1 is screwed on bolt 4, the upper conical boss 2-1 on eccentric nut top stretches in the upper groove 1-1 of upper cap nut 1, when screwing upper cap nut 1, eccentric upper conical boss 2-1 has lateral pressure to upper cap nut 1, thus eliminate eccentric nut upper end and the gap between upper cap nut and bolt, thus workpiece is firmly locked.In the state of interlocking anti-loosen screw nut component locking, the upper lower nut of eccentric nut both sides is exerted all one's strength to a direction to eccentric nut in end positions, the side of eccentric nut is made to be cambered surface and bolt close contact, eliminate the gap of screw thread and screw-thread fit between this cambered surface, simultaneously, under the anti-effect made firmly, on, lower nut also forms the close contact face of arc respectively at the opposite side of the cambered surface of eccentric nut close contact, define these three parts and bolted three sections of cambered surfaces, screw-thread fit gapless between these three sections of cambered surfaces, close contact, when screwing, also there is pretightening force between screw thread, increase the frictional force between nut and bolt, anti-loosing effect is good.After lower nut is subject to vibratory impulse power, lower nut is when transmitting impact force to eccentric nut, because lower nut is taper-face contact with coordinating of eccentric nut, axial impact force is under the effect of the conical surface, and part of impact force is broken down into radial force, dissolve by the rigidity of eccentric nut self, axial impact force reduces, thus reduce the damage of impact force to the screw thread of bolt, nut, long service life, reach better anti-loosing effect.
Claims (10)
1. an interlocking anti-loosen screw nut component, it is characterized in that: there is eccentric nut, described eccentric nut lower end is provided with inferior pyramidal boss, the described center of inferior pyramidal boss does not overlap with the thread center of eccentric nut, its offset is the matching gap of eccentric nut and bolt, described eccentric nut bottom is combined with pad, has the groove coordinated with the cone boss of described eccentric nut lower end, the center superposition of the center of described groove and the center hole of pad above described pad.
2. interlock anti-loosen screw nut component as claimed in claim 1, it is characterized in that: the end face of described pad is provided with anti-slip veins.
3. interlock anti-loosen screw nut component as claimed in claim 1 or 2, it is characterized in that: the downside of described eccentric nut is provided with bead.
4. interlock anti-loosen screw nut component as claimed in claim 1 or 2, it is characterized in that: the center hole of described pad is tapped hole, and the circumference of described pad has the chuck facilitating instrument to lock.
5. interlock anti-loosen screw nut component as claimed in claim 3, it is characterized in that: the center hole of described pad is tapped hole, and the circumference of described pad has the chuck facilitating instrument to lock.
6. interlock anti-loosen screw nut component as claimed in claim 4, it is characterized in that: the upper end of described eccentric nut is provided with upper conical boss, the described center of upper conical boss does not overlap with the thread center of eccentric nut, its offset is the matching gap of eccentric nut and bolt, the upper conical boss of described eccentric nut is combined with upper cap nut, one end of upper cap nut has the upper groove coordinated with the cone boss on eccentric nut top, the center of described upper groove and the center superposition of upper cap nut screw thread.
7. interlock anti-loosen screw nut component as claimed in claim 5, it is characterized in that: the upper end of described eccentric nut is provided with upper conical boss, the described center of upper conical boss does not overlap with the thread center of eccentric nut, its offset is the matching gap of eccentric nut and bolt, the upper conical boss of described eccentric nut is combined with upper cap nut, one end of upper cap nut has the upper groove coordinated with the cone boss on eccentric nut top, the center of described upper groove and the center superposition of upper cap nut screw thread.
8. interlock anti-loosen screw nut component as claimed in claim 6, it is characterized in that: the downside of described upper cap nut is provided with bead.
9. interlock anti-loosen screw nut component as claimed in claim 7, it is characterized in that: the downside of described upper cap nut is provided with bead.
10. the interlocking anti-loosen screw nut component as described in claim 7 or 9, is characterized in that: the downside of described lower nut is provided with bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506640.4A CN105114436A (en) | 2015-08-18 | 2015-08-18 | Interlocked stop nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510506640.4A CN105114436A (en) | 2015-08-18 | 2015-08-18 | Interlocked stop nut assembly |
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| Publication Number | Publication Date |
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| CN105114436A true CN105114436A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510506640.4A Pending CN105114436A (en) | 2015-08-18 | 2015-08-18 | Interlocked stop nut assembly |
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| CN (1) | CN105114436A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757706A (en) * | 2018-08-15 | 2018-11-06 | 吴雁南 | A kind of anti-loose connection bolt assembly |
| CN109306998A (en) * | 2017-07-26 | 2019-02-05 | 万金根 | A kind of positive and negative silk screw of never becoming loose |
| CN109404397A (en) * | 2018-12-26 | 2019-03-01 | 林平 | Anti-loosening nut |
| CN109931322A (en) * | 2019-04-18 | 2019-06-25 | 盈锋志诚嘉精密五金（深圳）有限公司 | Combined-type locking nut structure |
| CN110296139A (en) * | 2019-04-15 | 2019-10-01 | 高明 | A kind of self-locking bolt nut fastening assembly |
| CN112663807A (en) * | 2020-12-21 | 2021-04-16 | 浙江中富建筑集团股份有限公司 | Energy-saving heat-preservation heat-insulation outer wall and construction process thereof |
| CN113417927A (en) * | 2017-05-29 | 2021-09-21 | 山下宝辉 | Nut and fastening method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089533A (en) * | 2000-09-14 | 2002-03-27 | Fuji Seisakusho:Kk | Lock nut |
| CN203009533U (en) * | 2012-12-29 | 2013-06-19 | 肖在海 | Lock nut |
| CN203146546U (en) * | 2013-03-14 | 2013-08-21 | 上海乐扣科技股份有限公司 | Double-locknut structure |
| CN204003910U (en) * | 2014-06-03 | 2014-12-10 | 宁波华路汽车电器有限公司 | A kind of checknut fastening structure |
| CN205064529U (en) * | 2015-08-18 | 2016-03-02 | 孟周强 | Interlocking locknut subassembly |
-
2015
- 2015-08-18 CN CN201510506640.4A patent/CN105114436A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002089533A (en) * | 2000-09-14 | 2002-03-27 | Fuji Seisakusho:Kk | Lock nut |
| CN203009533U (en) * | 2012-12-29 | 2013-06-19 | 肖在海 | Lock nut |
| CN203146546U (en) * | 2013-03-14 | 2013-08-21 | 上海乐扣科技股份有限公司 | Double-locknut structure |
| CN204003910U (en) * | 2014-06-03 | 2014-12-10 | 宁波华路汽车电器有限公司 | A kind of checknut fastening structure |
| CN205064529U (en) * | 2015-08-18 | 2016-03-02 | 孟周强 | Interlocking locknut subassembly |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417927A (en) * | 2017-05-29 | 2021-09-21 | 山下宝辉 | Nut and fastening method |
| CN113417927B (en) * | 2017-05-29 | 2023-06-09 | 山下宝辉 | Nut and method of fastening |
| CN109306998A (en) * | 2017-07-26 | 2019-02-05 | 万金根 | A kind of positive and negative silk screw of never becoming loose |
| CN108757706A (en) * | 2018-08-15 | 2018-11-06 | 吴雁南 | A kind of anti-loose connection bolt assembly |
| CN109404397A (en) * | 2018-12-26 | 2019-03-01 | 林平 | Anti-loosening nut |
| CN110296139A (en) * | 2019-04-15 | 2019-10-01 | 高明 | A kind of self-locking bolt nut fastening assembly |
| CN109931322A (en) * | 2019-04-18 | 2019-06-25 | 盈锋志诚嘉精密五金（深圳）有限公司 | Combined-type locking nut structure |
| CN109931322B (en) * | 2019-04-18 | 2024-04-05 | 盈锋志诚嘉精密五金（深圳）有限公司 | Combined lock nut structure |
| CN112663807A (en) * | 2020-12-21 | 2021-04-16 | 浙江中富建筑集团股份有限公司 | Energy-saving heat-preservation heat-insulation outer wall and construction process thereof |
| CN112663807B (en) * | 2020-12-21 | 2021-12-24 | 浙江中富建筑集团股份有限公司 | Energy-saving heat-preservation heat-insulation outer wall and construction process thereof |
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Application publication date: 20151202 |