CN109185316A - A kind of squash type slotted nut component - Google Patents

A kind of squash type slotted nut component Download PDF

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Publication number
CN109185316A
CN109185316A CN201811431581.9A CN201811431581A CN109185316A CN 109185316 A CN109185316 A CN 109185316A CN 201811431581 A CN201811431581 A CN 201811431581A CN 109185316 A CN109185316 A CN 109185316A
Authority
CN
China
Prior art keywords
nut
section
screw thread
special
internal screw
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.)
Granted
Application number
CN201811431581.9A
Other languages
Chinese (zh)
Other versions
CN109185316B (en
Inventor
张亚晓
张晓斌
唐伟
徐飞
齐乐
徐国奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerospace Precision Products Co Ltd
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Aerospace Precision Products Co Ltd
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Filing date
Publication date
Application filed by Aerospace Precision Products Co Ltd filed Critical Aerospace Precision Products Co Ltd
Priority to CN201811431581.9A priority Critical patent/CN109185316B/en
Publication of CN109185316A publication Critical patent/CN109185316A/en
Application granted granted Critical
Publication of CN109185316B publication Critical patent/CN109185316B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • F16B39/126Locking 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0038Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24Locking 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
    • F16B39/26Locking 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)
  • Connection Of Plates (AREA)

Abstract

The present invention provides a kind of squash type slotted nut component, including squash type slotted nut component, including inner nut and outer nut;The nut body center of inner nut is equipped with tapped through-hole, and outer surface has the external screw thread coaxial with internal screw thread;Inner nut tail portion is equipped with special-shaped section, and the peripheral cross-section of the abnormity section is not the circle coaxial with internal screw thread;The abnormity section inwardly offers at least one fluting from end face;Outer nut has and can match the second internal screw thread engaged with the external screw thread of inner nut;The outer nut has and can be set in locking section on the special-shaped section of inner nut, and the locking section is most greater than most short across axis outer diameter and being less than the longest of the special-shaped section and cross axis outer diameter for the special-shaped section short across axis internal diameter.The configuration of the present invention is simple is convenient for manufacture and installation.

Description

A kind of squash type slotted nut component
Technical field
The present invention relates to technical field of fastening, and in particular to a kind of squash type slotted nut component.
Background technique
Fastener is to be fastenedly connected with and apply extremely wide a kind of machine components, in all kinds of machinery, equipment, vehicle , ship, railway, bridge, building, structure, tool, instrument, instrument etc. it is upper it can be seen that miscellaneous fastener.Fastener Purpose be fastening, once because vibration, impact etc. factors cause fastener loosen, fall off, then may cause equipment, machinery etc. Its functional, disintegration is lost, or even jeopardizes personal safety.It is due to fastening that the accident of Current mechanical equipment, which has 80% or more, at present The loosening of part and caused by.
All kinds of problems caused by avoid because of loosened fastener, various countries technical staff constantly research and develop, and occur later very much The method for further increasing product fastening, such as spring washer, pin is added, using double nut, form self-locking nut, Gao Suo Nut etc. has effects that loosen, the product of antivibration, but still remains and loosen risk.
Summary of the invention
Simple, the squash type slotted nut group convenient for manufacturing and installing that the purpose of the present invention is to provide a kind of structures Part.
Squash type slotted nut component of the invention, including squash type slotted nut component, including inner nut And outer nut;The nut body center of inner nut is equipped with tapped through-hole, and outer surface has the outer spiral shell coaxial with internal screw thread Line;Inner nut tail portion is equipped with special-shaped section, and the peripheral cross-section of the abnormity section is not the circle coaxial with internal screw thread;The abnormity section At least one fluting is inwardly offered from end face;Outer nut has and can match spiral shell in second engaged with the external screw thread of inner nut Line;The outer nut has and can be set in locking section on the special-shaped section of inner nut, the locking section most short across in axis Diameter size is greater than most short across axis outer diameter and being less than the longest of the special-shaped section and cross axis outer diameter for the special-shaped section.
Preferably, the inner hole section of the special-shaped section peripheral cross-section and locking section is ellipse.Fluting is set to described Special-shaped section most short across on axis outer diameter.When special-shaped section peripheral cross-section is ellipse, fluting is designed as two, and slot bottom was arc-shaped It crosses.
The periphery of the inner nut is additionally provided with twisting structure.
The periphery of the outer nut is equipped with twisting mechanism.The periphery of outer nut is additionally provided with contour structures, can be in rotary table, method The diversified forms such as blue platform, countersunk head.
The inner nut tail portion is further sleeved with elastic element, and the elastic element can be limited by outer nut, elastic element The elastic force towards the second internal screw thread direction can be applied to outer nut.
The special-shaped section of squash type slotted nut component provided by the present invention, inner nut and outer nut and locking section The axial force of rotation, is changed into radial tightening force, can play the role of the locking of high efficient and reliable, elastic element is set by design Meter further increases reliable lock, effectively prevent loosening.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1-2 is overall structure diagram of the invention.
Fig. 3-4 is the structural schematic diagram of inner nut.
Fig. 5-7 is the structural schematic diagram of outer nut.
Specific embodiment
In order to better understand the present invention, below with reference to specific attached drawing, the present invention will be described in detail.
Squash type slotted nut component provided by the invention, as shown in Figs. 1-2, including inner nut 1 (Fig. 3-4) and outer Nut 2 (Fig. 5-7);The nut body center of inner nut 1 is equipped with the through-hole with internal screw thread 11, and outer surface has same with internal screw thread 11 The external screw thread 13 of axis;1 tail portion of inner nut is equipped with special-shaped section 12, and the peripheral cross-section of the abnormity section 12 is not coaxial with internal screw thread 11 Circle;The abnormity section 12 inwardly offers at least one fluting 15 from end face;Outer nut 2 has can be with inner nut 1 Second internal screw thread 22 of the matching engagement of external screw thread 13;The outer nut 2 have can be set on the special-shaped section 12 of inner nut 1 Locking section 21, the locking section 21 most short across axis internal diameter (i.e. on the inner hole section of locking section 21, it is all cross shaft diameters In the smallest size) be greater than the special-shaped section 12 most short across axis outer diameter (in the peripheral cross-section of i.e. special-shaped section 12, all mistakes The smallest size in shaft diameter) and the axis outer diameter (peripheral cross-section of i.e. special-shaped section 12 is crossed less than the longest of the special-shaped section 12 On, it is all to cross maximum size in shaft diameter).
The present invention passes through the size design of special-shaped section 12 and locking section 21 so that locking section 21 be set in special-shaped section 12 it After upper, radially inward tightening force can be applied to special-shaped section 12 by rotation, special-shaped section 12 inwardly be tightened, only Associated bolt shank is embraced, plays the role of reinforcing locking.Tightening force be changed by the axial force rotated it is radial and It generates, than directly applying the more efficient of radial forces, and continues reliable.
Preferably, the inner hole section of special-shaped 12 peripheral cross-section of section and locking section 21 is ellipse, is facilitated more preferable Ground plays locking effect.Fluting 15 be set to the special-shaped section 12 most short across on axis outer diameter, such design is so that axial force Torque it is maximum, the efficiency highest of radial tightening force.When special-shaped 12 peripheral cross-section of section is ellipse, fluting 15 is designed as two, Slot bottom is arc-shaped transition.
The periphery of the inner nut 1 is additionally provided with twisting structure 14, gripping when convenient for the installation of inner nut 1, twisting knot Structure includes but is not limited to four directions, six sides, hexagonal, the forms such as 12 jiaos.
The periphery of the outer nut 2 be equipped with twisting mechanism 23 (it is consistent with the effect of twisting structure 14, herein to be distinguished Distinguish naming method), gripping when convenient for the installation of outer nut 2, twisting structure includes but is not limited to four directions, six sides, six Angle, the forms such as 12 jiaos.The periphery of outer nut 2 is additionally provided with contour structures 24, can be in a variety of shapes such as rotary table, flange platform, countersunk heads Formula, it is therefore intended that improve the rigidity of outer nut 2.
1 tail portion of inner nut is further sleeved with elastic element 3, and the elastic element 3 can be limited (general by outer nut 2 Limited by the end face of outer nut 2), elastic element 3 can apply the elastic force towards 22 direction of the second internal screw thread to outer nut 2. The illustrative example of elastic element 3 is spring.Elastic element 3 can prevent outer nut 2 because of the pine that circles round caused by the reasons such as vibration Dynamic, elastic element 3 is in compressive state, and playing the role of, which prevents inner nut 1 from loosening, reinforces 1 locking property of inner nut, therefore, this The combination nut of invention can further effectively prevent loosening.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (6)

1. a kind of lock nut assembly, including squash type slotted nut component, including inner nut (1) and outer nut (2);It is interior The nut body center of nut (1) is equipped with the through-hole with internal screw thread (11), and outer surface has the outer spiral shell coaxial with internal screw thread (11) Line (13);Inner nut (1) tail portion is equipped with special-shaped section (12), and the peripheral cross-section of the abnormity section (12) is not same with internal screw thread (11) The circle of axis;The abnormity section (12) inwardly offers at least one fluting (15) from end face;Outer nut (2) have can with it is interior The second internal screw thread (22) of external screw thread (13) the matching engagement of nut (1);The outer nut (2) have can be set in inner nut (1) the locking section (21) on special-shaped section (12), the locking section (21) are most greater than the abnormity short across axis internal diameter Section (12) most crosses axis outer diameter short across axis outer diameter and less than the longest of the special-shaped section (12).
2. lock nut assembly according to claim 1, which is characterized in that abnormity section (12) peripheral cross-section and locking The inner hole section of section (21) is ellipse.
3. lock nut assembly according to claim 1, which is characterized in that fluting (15) is set to the special-shaped section (12) Most short across on axis outer diameter.
4. lock nut assembly according to claim 1, which is characterized in that fluting (15) is designed as two, and slot bottom is in circle Arc-shaped transition.
5. lock nut assembly according to claim 1, which is characterized in that the periphery of the inner nut (1), which is additionally provided with, pulls It is twisted structure (14), the periphery of the outer nut (2) is equipped with twisting mechanism (23), and the periphery of outer nut (2) is additionally provided with contour structures (24)。
6. lock nut assembly according to claim 1, which is characterized in that inner nut (1) tail portion is further sleeved with bullet Property element (3), the elastic element (3) can limit by outer nut (2), and elastic element (3) can apply court to outer nut (2) To the elastic force in the second internal screw thread (22) direction.
CN201811431581.9A 2018-11-23 2018-11-23 Extrusion formula fluting lock nut subassembly Active CN109185316B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811431581.9A CN109185316B (en) 2018-11-23 2018-11-23 Extrusion formula fluting lock nut subassembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811431581.9A CN109185316B (en) 2018-11-23 2018-11-23 Extrusion formula fluting lock nut subassembly

Publications (2)

Publication Number Publication Date
CN109185316A true CN109185316A (en) 2019-01-11
CN109185316B CN109185316B (en) 2020-08-04

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CN201811431581.9A Active CN109185316B (en) 2018-11-23 2018-11-23 Extrusion formula fluting lock nut subassembly

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307240A (en) * 2019-07-02 2019-10-08 海盐县华昇汽车配件有限公司 A kind of anti-loose anti-theft nut easy to use

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060067786A1 (en) * 2004-09-30 2006-03-30 Gorski Paul T Bushing system for power transmission products
CN203272396U (en) * 2013-05-06 2013-11-06 邵祥顺 Locking nut
CN203743167U (en) * 2014-01-08 2014-07-30 河南航天精工制造有限公司 Self-locking nut
KR20150002059A (en) * 2013-06-28 2015-01-07 오창환 Engagement unit having bolt and nut structure
CN106151235A (en) * 2016-06-17 2016-11-23 浙江吉利罗佑发动机有限公司 A kind of gas extraction system installs nut
CN106246699A (en) * 2016-08-10 2016-12-21 张树永 Electric power and electrification railway contact net Special Eccentric wedge type is locking holds nut tightly
CN206478093U (en) * 2017-01-21 2017-09-08 深圳市金达来精密科技股份有限公司 A kind of locking fastening combination nut
CN107725565A (en) * 2017-10-17 2018-02-23 韩魁 A kind of automatic locking nut
CN207814175U (en) * 2017-12-27 2018-09-04 朗福紧固科技(西安)有限公司 Slotting and locking combined nut

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060067786A1 (en) * 2004-09-30 2006-03-30 Gorski Paul T Bushing system for power transmission products
CN203272396U (en) * 2013-05-06 2013-11-06 邵祥顺 Locking nut
KR20150002059A (en) * 2013-06-28 2015-01-07 오창환 Engagement unit having bolt and nut structure
CN203743167U (en) * 2014-01-08 2014-07-30 河南航天精工制造有限公司 Self-locking nut
CN106151235A (en) * 2016-06-17 2016-11-23 浙江吉利罗佑发动机有限公司 A kind of gas extraction system installs nut
CN106246699A (en) * 2016-08-10 2016-12-21 张树永 Electric power and electrification railway contact net Special Eccentric wedge type is locking holds nut tightly
CN206478093U (en) * 2017-01-21 2017-09-08 深圳市金达来精密科技股份有限公司 A kind of locking fastening combination nut
CN107725565A (en) * 2017-10-17 2018-02-23 韩魁 A kind of automatic locking nut
CN207814175U (en) * 2017-12-27 2018-09-04 朗福紧固科技(西安)有限公司 Slotting and locking combined nut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307240A (en) * 2019-07-02 2019-10-08 海盐县华昇汽车配件有限公司 A kind of anti-loose anti-theft nut easy to use

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Publication number Publication date
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