CN108223547A - Elastic force locking member, stop nut and check bolt nut fastener - Google Patents
Elastic force locking member, stop nut and check bolt nut fastener Download PDFInfo
- Publication number
- CN108223547A CN108223547A CN201810185118.4A CN201810185118A CN108223547A CN 108223547 A CN108223547 A CN 108223547A CN 201810185118 A CN201810185118 A CN 201810185118A CN 108223547 A CN108223547 A CN 108223547A
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- Prior art keywords
- nut
- spring
- inner spring
- outer spring
- elastic force
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- 230000033001 locomotion Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 14
- 238000012545 processing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000036316 preload Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000758 substrate Substances 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
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention relates to elastic force locking member, stop nut and check bolt nut fasteners, wherein, elastic force locking member includes inner spring and is sheathed on the outer spring of the outside of inner spring, the end of one end of outer spring is connected by the end of inside and outside spring connecting portion and the same end of inner spring, the rotation direction of outer spring and inner spring it is oppositely oriented；Stop nut with bolt for being assembled, with nut and elastic force locking member, wherein, the other end of outer spring is connect with nut, and inner spring, which can press, to be wound on the thread of bolt；Check bolt nut fastener has pre-tightening sleeve and above-mentioned stop nut.The configuration of the present invention is simple, locking property are good, and it is only transformed nut without being transformed to bolt or fastening workpiece, it is ensured that fastener has good working strength, ensures engineering safety.
Description
Technical field
The present invention relates to machanical fastener field, more particularly, to a kind of elastic force locking member, stop nut and locking spiral shell
Bolt nut fastener.
Background technology
At present, all trades and professions are more and more for the use of fastener, and shock and vibration, variable load are chronically at for some
For fastener in the operating mode of lotus, nut it is locking seem be even more important.In the prior art, common anti-loose method rubs
It is locking and permanent locking etc. to wipe locking, machinery, the dismounting of these anti-loose structures is inconvenient, and accordingly, processing program is cumbersome, cost compared with
It is high；In addition, in the prior art, generally require cooperation fluting trepanning etc. on substrate or bolt and nut external member and obtain fastener, this
Sample can reduce the intensity of fastener, reduce engineering safety.
Invention content
The present invention is to propose in view of the above problems, and its purpose is to provide a kind of elastic force locking member, stop nuts
And check bolt nut fastener.The configuration of the present invention is simple, locking property are good, and it is only transformed without to spiral shell nut
Bolt or fastening workpiece are transformed, it is ensured that fastener has good working strength, ensures engineering safety.
The following technical scheme is adopted to achieve the purpose of the present invention.
The invention of technical solution 1 is a kind of elastic force locking member, including inner spring and the outside for being sheathed on the inner spring
Outer spring.
The axis of the axis of the inner spring and the outer spring is same axis.
Along the direction of the same axis extension, the end of one end of the outer spring by inside and outside spring connecting portion with it is described
The end connection of the same end of inner spring, the rotation direction of the outer spring are oppositely oriented with the inner spring.
In addition, the elastic force locking member of technical solution 2, in the elastic force locking member of technical solution 1, the inner spring
The end of the other end forms the interior spring shifting block of the bend external to the inner spring.
The invention of technical solution 3 is a kind of stop nut, for being assembled with bolt, has nut and technical solution 1
Or the elastic force locking member described in technical solution 2, wherein, the other end of the outer spring is connect with the nut, described
Inner spring, which can press, to be wound on the thread of the bolt.
In addition, the stop nut of technical solution 4, in the stop nut of technical solution 3, the other end of the outer spring
End is formed along the hook portion bent from one end of the outer spring to the direction that the other end of the outer spring extends, described
It is provided on the end face of one end of nut and is inserted into hole, the other end of the outer spring is inserted into the hook portion in the insertion hole
The mode in portion is connect with the nut.
In addition, the stop nut of technical solution 5, in the stop nut of technical solution 3, at the end of one end of the nut
It is provided with annular slot on face, the other end of the outer spring is in a manner of the inside that end rings are embedded in the annular slot and institute
State nut connection.
In addition, the stop nut of technical solution 6, in the stop nut of technical solution 3, the other end of the outer spring with
The mode for being sheathed on the outside of the nut is connect with the nut.
In addition, the stop nut of technical solution 7, in the stop nut of technical solution 6, the nut is hex nut,
The outer spring include close to the nut and can be sheathed on the nut outside hexagon spring section and far from described
The coil component spring section of nut.
The invention of technical solution 8 is a kind of check bolt nut fastener, has pre-tightening sleeve and technical solution 3 to technical side
The described stop nut of any one technical solution in case 7.
The pre-tightening sleeve includes columnar body, and the axis along the columnar body is formed in the inside of the columnar body
The elastic force locking component assembling chamber and nut assembly cavity that direction is sequentially communicated.
One end far from elastic force locking component assembling chamber of the nut assembly cavity is connected with external environment.
The cavity wall of the nut assembly cavity can be bonded with the outer wall of the nut.
The pipe along the axis direction extension of the columnar body is formed in the inside of elastic force locking component assembling chamber
Shape cavity isolated part, the internal diameter of the tubular housing isolated part are more than the outer diameter of the inner spring, the tubular housing every
Outer diameter from component is less than the internal diameter of the outer spring.
It is provided on the peripheral wall of the tubular housing isolated part along the direction for the axis for being parallel to the columnar body
The opening guide portion of extension.
The opening guide portion can guide the end of the other end of the inside and outside spring connecting portion and the inner spring in institute
Relative motion in the circumferential direction of columnar body is stated, so as to which the inner spring and the outer spring be driven to turn respectively along respective rotation direction
It is dynamic.
In addition, the check bolt nut fastener of technical solution 9, in the check bolt nut fastener of technical solution 8,
It offers to tighten on the end face of one end far from the nut assembly cavity of the columnar body and uses groove.
In addition, the check bolt nut fastener of technical solution 10, in the check bolt nut fastener of technical solution 7
In, nut label is provided on the lateral surface of the nut, is provided on the lateral surface of the columnar body of the pre-tightening sleeve
Pre-tightening sleeve marks, and the opening guide portion is respectively positioned in the end of the inside and outside spring connecting portion and the other end of the inner spring
In the case of inside, the central point line of the nut label and pre-tightening sleeve label is parallel to the axis of the columnar body
Line.
Compared in the prior art, the present invention has the advantages that.
According to the invention of technical solution 1, a kind of elastic force locking member is provided, including inner spring and is sheathed on inner spring
External outer spring.
Wherein, the axis of the axis of inner spring and outer spring is same axis, the direction extended along same axis, outer spring
The end of one end connected by the end of inside and outside spring connecting portion and the same end of inner spring, the rotation direction of outer spring and inner spring
It is oppositely oriented.
In use, by the way that inner spring and outer spring is made to rotate round about, inner spring and outer spring are unclamped again, so as to make
It is separately positioned between the workpiece and workpiece at the both ends of the elastic force locking member and locks, it is general so as to be carried out between workpiece and workpiece
Lead to and coupling mechanism force is improved on the basis of connecing.
According to the invention of technical solution 2, the end of the other end of inner spring is set to form bend external to inner spring
Interior spring shifting block, so as to make the end of the other end of inside and outside spring connecting portion and inner spring in inner spring and the same axis of outer spring
Circumferential direction on relative motion process it is more smooth, the opposite direction rotating being more advantageous between inner spring and outer spring.
The invention of technical solution 3 provides a kind of stop nut, is used to be assembled with bolt, has nut and above-mentioned
Elastic force locking member described in technical solution 1 or technical solution 2, wherein, the other end of outer spring is connect with nut, interior bullet
Spring, which can press, to be wound on the thread of bolt.
In use, the oppositely oriented nut of selection thread rotary orientation and outer spring is fastened, in fastener cycle, make nut
Press workpiece, while carrying out normal axial grip to workpiece, the end of the other end of spring connecting portion and inner spring inside and outside order
The relative motion in the circumferential direction of inner spring and the same axis of outer spring, so as to make inner spring and outer spring opposite direction rotating, and
In the bolt and nut fastening structure finally obtained, inner spring, which presses, to be wound on the thread of bolt, and outer spring is then turned round, and provides spiral shell
Female pretightning force can carry out nut using the torsion more than nut loosening power supplement and twist when nut occurs returning loose trend
Tightly, so as to maintain fastener clamping force within normal range (NR).
Stop nut provided by the invention is simple in structure, convenient processing and manufacture, can be in controlled range, in the axial direction of nut
Clamping force tightens nut automatically when reducing, extend effective clamping time of the nut axial clamping force in normal range (NR), extends tight
The maintenance period of firmware reduces the number periodically tightened to screw thread pair, reduces workload.
In addition, stop nut provided by the invention has without carrying out the extra processing and manufacturings such as fluting trepanning on bolt
Effect ensure that the intensity of fastener in itself, be conducive to improve engineering safety.
According to the invention of technical solution 4 to 7, the end formation of the other end of outer spring is outside along one end from outer spring
Spring the other end extension direction bending hook portion, be provided on the end face of one end of nut be inserted into hole, outer spring it is another
One end is connect in a manner of the inside that hook portion is inserted into hole with nut.Alternatively, it is provided with ring on the end face of one end of nut
Shape card slot, the other end of outer spring are connect in a manner of the inside of end rings insertion annular slot with nut.Alternatively, outer spring
The other end is connect in a manner of the outside for being sheathed on nut with nut.Further, which is hex nut, and outer spring includes
Close to nut and the hexagon spring section of outside of nut and the coil component spring section of separate nut can be sheathed on.
Foregoing provide the three kinds of modes connected between outer spring and nut, regardless of using any connection mode,
The effect for making to be connected in a manner of no relative motion between nut and outer spring is can reach, is conducive to reach above-mentioned preload function.
In addition, above-mentioned several connection modes can be to be detachably connected, it as a result, can be in the elasticity of outer spring or inner spring
Power carries out integral replacing in the case of failing to elastic force locking member, and the entirety of the stop nut is avoided to scrap, is conducive to anti-
Loose nut is recycled, and saves processing and manufacturing cost.
The invention of technical solution 8 provides a kind of check bolt nut fastener, with pre-tightening sleeve and technical solution 3 to
The described stop nut of any one technical solution in technical solution 7.
Pre-tightening sleeve includes columnar body, is formed with along the axis direction of columnar body and is sequentially communicated in the inside of columnar body
Elastic force locking component assembling chamber and nut assembly cavity.
One end of the separate elastic force locking component assembling chamber of nut assembly cavity is connected with external environment.
The cavity wall of nut assembly cavity can be bonded with the outer wall of nut.
Elastic force locking component assembling chamber inside be formed with along columnar body axis direction extension tubular housing every
From component, the internal diameter of tubular housing isolated part is more than the outer diameter of inner spring, and the outer diameter of tubular housing isolated part is less than outer bullet
The internal diameter of spring.
Opening along the direction extension for the axis for being parallel to columnar body is provided on the peripheral wall of tubular housing isolated part
Mouth guide portion.
Opening guide portion can guide the end of the other end of inside and outside spring connecting portion and inner spring in the circumferential direction of columnar body
Upper relative motion, so as to which inner spring and outer spring be driven to be rotated respectively along respective rotation direction.
During fastening, pre-tightening sleeve is set in the outside of nut, and nut is made to be contained in nut assembly cavity, makes tubular housing
Isolated part is between outer spring and inner spring, and is respectively positioned on out the end of the other end of inside and outside spring connecting portion and inner spring
The inside of mouth guide portion, makes pre-tightening sleeve clamp nut in the axial direction, continues to compress, then, opening guide portion first connects inside and outside spring
Socket part is squeezed, and outer spring is rotated along its rotation direction, is further compressed, then, opening guide portion is to the end of the other end of inner spring
Head is squeezed, and inner spring rotation, outer spring and inner spring opposite direction rotating, outer spring are turned round, and inner spring Zhang Song is finally, inside and outside
The end of the other end of spring connecting portion and inner spring is collapsed by opening guide portion, and pre-tightening sleeve is screwed into bolt simultaneously together with nut
Nut is tightened by regulation torque.
In next step, preload sleeve is disengaged, when preload sleeve disengages, inner spring is fallen under the action of own resilient in bolt
Thread on and wind bolt thread at least one enclose, since inner spring is wound on thread, the other end of outer spring also connects
In on nut, thus, after disengaging preload sleeve, inner spring and outer spring do not remake circumferential movement, and outer spring is kept by turning round shape
State.
In this way, can persistently be turned round by outer spring, clamp force in the normality opposite with the loosening force of nut is provided, works as outer spring
Torsion be more than nut suffered by loosening force when so that nut is added make-up, to maintain fastener clamping force in normal model
It encloses.
The use of above-mentioned pre-tightening sleeve can simplify the step of elastic force locking member pre-tightens bolt and nut, grasp preload
The completion of work is quicker, and pretensioning effect is good.
According to the invention of technical solution 9, offered on the end face of one end of the separate nut assembly cavity of columnar body stubborn
Tightly use groove.Tightening tool can be inserted by the groove as a result, to tighten nut.
According to the invention of technical solution 10, nut label is provided on the lateral surface of nut, in the column master of pre-tightening sleeve
Pre-tightening sleeve label is provided on the lateral surface of body, opening is respectively positioned in the end of inside and outside spring connecting portion and the other end of inner spring and draws
In the case of the inside for leading portion, the central point line of nut label and pre-tightening sleeve label is parallel to the axis of columnar body.
According to this structure, first nut label and pre-tightening sleeve can be marked when pre-tightening sleeve is sheathed on the outside of nut
It is inserted in again after alignment, in this way, the position aligning time of the opening guide portion of pre-tightening sleeve can be saved, improves and pre-tighten efficiency.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram for the specific embodiment for representing elastic force locking member provided by the invention.
Fig. 2 is the nut for the first embodiment for representing stop nut provided by the invention and the connection knot of elastic force locking member
Structure schematic diagram.
Fig. 3 is the nut for the second embodiment for representing stop nut provided by the invention and the connection knot of elastic force locking member
Structure schematic diagram.
Fig. 4 is the structure diagram of the elastic force locking member for the 3rd embodiment for representing stop nut provided by the invention.
Fig. 5 is the nut for the fourth embodiment for representing stop nut provided by the invention and the connection knot of elastic force locking member
Structure schematic diagram.
Fig. 6 is the overall structure diagram for the pre-tightening sleeve for representing check bolt nut fastener provided by the invention.
Fig. 7 is to represent opening the present invention is to provide the pre-tightening sleeve for representing check bolt nut fastener provided by the invention
The structure diagram of mouth guide portion.
Reference numeral：1- nuts；11- is inserted into hole；12- nuts mark；2- elastic force locking members；21- inner springs；Outside 22-
Spring；221- hook portions；222- coil component spring sections；223- hexagon spring sections；Spring connecting portion inside and outside 23-；Spring shifting block in 24-；3-
Pre-tightening sleeve；31- tubular housing isolated parts；311- opening guide portions；First time guide surface of 3111-；It is guided on 3112- first
Face；3113- first collapses face；Second time guide surface of 3114-；Guide surface on 3115- second；3116- second collapses face；32- is pre-
Fixed label.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Overall structure according to the present invention can be divided into following several specific embodiments.
Elastic force locking member specific embodiment
Present embodiments provide a kind of elastic force locking member.
Fig. 1 is the structure diagram for the specific embodiment for representing elastic force locking member provided by the invention.
As shown in Figure 1, the elastic force locking member 2 includes inner spring 21 and is sheathed on the outer spring of the outside of inner spring 21
22。
The axis of inner spring 21 is same axis with the axis of outer spring 22, the direction extended along same axis, outer spring
The end of 22 one end is connect by inside and outside spring connecting portion 23 with the end of the same end of inner spring 21, the rotation direction of outer spring 22 with
Inner spring 21 it is oppositely oriented.
Further, the end of the other end of setting inner spring 21 forms the interior spring shifting block of the bend external to inner spring 21
24。
In addition, the present invention also provides a kind of stop nuts.
Stop nut embodiment one
Fig. 2 is the nut for the first embodiment for representing stop nut provided by the invention and the connection knot of elastic force locking member
Structure schematic diagram.
As shown in Fig. 2, the stop nut has the hex nut and bullet as nut 1 for being assembled with bolt
Power locking member 2.
Wherein, elastic force locking member 2 includes inner spring 21 and is sheathed on the outer spring 22 of the outside of inner spring 21.
The axis of inner spring 21 is same axis with the axis of outer spring 22, the direction extended along same axis, outer spring
The end of 22 one end is connect by inside and outside spring connecting portion 23 with the end of the same end of inner spring 21, the rotation direction of outer spring 22 with
Inner spring 21 it is oppositely oriented.
The other end of outer spring 22 is connect with nut 1, and inner spring 21, which can press, to be wound on the thread of bolt.
Further, the end of the other end of inner spring 21 forms the interior spring shifting block 24 of the bend external to inner spring 21.
Further, the other end of outer spring 22 is connect in a detachable manner with nut 1.
Further, annular slot is provided on the end face of one end of nut 1, the other end of outer spring 22 is with end
The mode of the inside of the embedded annular slot of circle is connect with nut 1.
Stop nut embodiment two
Fig. 3 is the nut for the second embodiment for representing stop nut provided by the invention and the connection knot of elastic force locking member
Structure schematic diagram.
As shown in figure 3, the stop nut has the hex nut and bullet as nut 1 for being assembled with bolt
Power locking member 2.
Wherein, elastic force locking member 2 includes inner spring 21 and is sheathed on the outer spring 22 of the outside of inner spring 21.
The axis of inner spring 21 is same axis with the axis of outer spring 22, the direction extended along same axis, outer spring
The end of 22 one end is connect by inside and outside spring connecting portion 23 with the end of the same end of inner spring 21, the rotation direction of outer spring 22 with
Inner spring 21 it is oppositely oriented.
The other end of outer spring 22 is connect with nut 1, and inner spring 21, which can press, to be wound on the thread of bolt.
Further, the end of the other end of inner spring 21 forms the interior spring shifting block 24 of the bend external to inner spring 21.
Further, the other end of outer spring 22 is connect in a detachable manner with nut 1.
Further, the end of the other end of outer spring 22 is formed along from one end of outer spring 22 to outer spring 22
The hook portion 221 of the direction bending of other end extension, is provided on the end face of one end of nut 1 and is inserted into hole 11, outer spring 22
The other end is connect in a manner of the inside that hook portion 221 is inserted into hole 11 with nut 1.
Stop nut embodiment three
Fig. 4 is the structure diagram of the elastic force locking member for the 3rd embodiment for representing stop nut provided by the invention.
As shown in figure 4, compared with second embodiment, by " further, the other end of inner spring 21 in second embodiment
End form the interior spring shifting block 24 of from the bend external to inner spring 21." structural modification be：
Further, the end of the other end of inner spring 21 extends along the tangential direction of inner spring 21.
Other structures are identical with the structure of second embodiment.
Stop nut example IV
Fig. 5 is the nut for the fourth embodiment for representing stop nut provided by the invention and the connection knot of elastic force locking member
Structure schematic diagram.
As shown in figure 5, the stop nut has the hex nut and bullet as nut 1 for being assembled with bolt
Power locking member 2.
Wherein, elastic force locking member 2 includes inner spring 21 and is sheathed on the outer spring 22 of the outside of inner spring 21.
The axis of inner spring 21 is same axis with the axis of outer spring 22, the direction extended along same axis, outer spring
The end of 22 one end is connect by inside and outside spring connecting portion 23 with the end of the same end of inner spring 21, the rotation direction of outer spring 22 with
Inner spring 21 it is oppositely oriented.
The other end of outer spring 22 is connect with nut 1, and inner spring 21, which can press, to be wound on the thread of bolt.
Further, the end of the other end of inner spring 21 forms the interior spring shifting block 24 of the bend external to inner spring 21.
Further, the other end of outer spring 22 is connect in a detachable manner with nut 1.
Further, the other end of outer spring 22 is connect in a manner of being sheathed on the outside of nut 1 with nut 1.
Further, outer spring 22 includes the hexagon spring section of close nut 1 and the outside that can be sheathed on nut 1
223 and far from nut 1 coil component spring section 222.
Above-mentioned stop nut is being carried out in use, the oppositely oriented nut 1 of selection thread rotary orientation and outer spring 22
It is fastened, for example, as shown in Figures 1 to 4, the rotation direction of setting outer spring 22 is left-handed, and the rotation direction of inner spring 21 is dextrorotation,
Then, rotation direction is selected to be fastened for the nut 1 of dextrorotation.
In fastener cycle, nut 1 is made to press workpiece, while carrying out normal axial grip to workpiece, spring connects inside and outside order
The relative motion in the circumferential direction of inner spring 21 and the same axis of outer spring 22 of the end of the other end of socket part 23 and inner spring 21,
So as to make inner spring 21 and 22 opposite direction rotating of outer spring, and in the bolt and nut fastening structure finally obtained, inner spring 21 is tight
Pressure is wound on the thread of bolt, and outer spring 22 is then turned round, and provides nut pretightning force, can occur returning loose trend in nut 1
When, supplement is carried out to nut 1 using the torsion more than nut loosening power and is tightened, so as to maintain fastener clamping force in normal range (NR)
Within.
Stop nut provided by the invention is simple in structure, convenient processing and manufacture, can be in controlled range, in the axis of nut 1
Automatically nut 1 is tightened when being reduced to clamping force, extends effective clamping time of 1 axial clamping force of nut in normal range (NR), prolongs
The maintenance period of long fastener reduces the number periodically tightened to screw thread pair, reduces workload.
In addition, stop nut provided by the invention has without carrying out the extra processing and manufacturings such as fluting trepanning on bolt
Effect ensure that the intensity of fastener in itself, be conducive to improve engineering safety.
In addition, the present invention also provides a kind of check bolt nut fasteners.
Fig. 6 is the overall structure diagram for the pre-tightening sleeve for representing check bolt nut fastener provided by the invention.Fig. 7 is
Represent that the present invention is to provide the knots of the opening guide portion for the pre-tightening sleeve for representing check bolt nut fastener provided by the invention
Structure schematic diagram.
As shown in fig. 6, the check bolt nut fastener has pre-tightening sleeve 3 and any of the above-described kind of stop nut.
Wherein, pre-tightening sleeve 3 includes columnar body, be formed in the inside of columnar body axis direction along columnar body according to
The elastic force locking component assembling chamber and nut assembly cavity of secondary connection.
One end of the separate elastic force locking component assembling chamber of nut assembly cavity is connected with external environment.
Nut assembly cavity is formed as the hexagonal prismoid shape cavity that cavity wall can be bonded with the outer wall of nut.
Elastic force locking component assembling chamber inside be formed with along columnar body axis direction extension tubular housing every
From component 31, the internal diameter of tubular housing isolated part 31 is more than the outer diameter of inner spring 21, the outer diameter of tubular housing isolated part 31
Less than the internal diameter of outer spring 22.
It is provided on the peripheral wall of tubular housing isolated part 31 along the direction extension for the axis for being parallel to columnar body
Be open guide portion 311.
Opening guide portion 311 can guide the end of the other end of inside and outside spring connecting portion 23 and inner spring 21 in columnar body
Circumferential direction on relative motion, so as to drive inner spring 21 and outer spring 22 respectively along respective rotation direction rotate.
Further, the structure of the opening guide portion 311 is as shown in fig. 7, to form the two of the opening guide portion 311 phases
Opposite is respectively the first opening face and the second opening face, as lower end, to be assembled close to one end of nut assembly cavity with separate nut
One end of chamber is upper end, then：The first opening face includes guide surface 3112 and first on first time guide surface 3111, first and collapses
Face 3113, the second opening face include corresponding to second time guide surface 3114 of first time guide surface 3111, corresponding to drawing on first
Guide surface 3115 and the second gathering face 3116 for collapsing face 3113 corresponding to first on the second of guide face 3112, wherein, first
Lower guide surface 3111, first collapse face 3113, second collapse on face 3116 and second guide surface 3115 respectively with columnar body
Axis parallel；The lower end of guide surface 3112 is connect with the upper end of first time guide surface 3111 on first, and is guided on first
Lower end of the upper end in face 3112 with the first gathering face 3113 after being tilted close to the direction of guide surface 3115 on second is connect；Second
The upper end of lower guide surface 3114 is connect with the lower end of guide surface on second 3115, and the lower end of second time guide surface 3114 is to separate
The direction of first time guide surface 3111 tilts；The upper end of guide surface 3115 is connect with the lower end in the second gathering face 3116 on second.
The end of the other end of inside and outside spring connecting portion 23 and inner spring 21 can be located at the inside of opening guide portion 311.
Further, it offers to tighten on the end face of one end of the separate nut assembly cavity of columnar body and uses groove.
In addition, nut label 12 is provided on the lateral surface of nut 1, on the lateral surface of the columnar body of pre-tightening sleeve 3
Pre-tightening sleeve label 32 is provided with, opening guide portion is respectively positioned in the end of inside and outside spring connecting portion 23 and the other end of inner spring 21
In the case of 311 inside, the central point line of nut label 12 and pre-tightening sleeve label 32 is parallel to the axis of columnar body.
During fastening, the side of the axis of columnar body is parallel to the central point line of nut label 12 and pre-tightening sleeve label 32
Formula is directed at pre-tightening sleeve 3, pre-tightening sleeve 3 is set in the outside of nut 1, and nut 1 is made to be contained in nut assembly cavity, makes tubular cavity
Body isolated part 31 is between outer spring 22 and inner spring 21, and make the other end of inside and outside spring connecting portion 23 and inner spring 21
End is respectively positioned on the inside of opening guide portion 311, makes clamp nut 1 in the axial direction of pre-tightening sleeve 3, continues to compress, then, under second
Guide surface 3114 squeezes inside and outside spring connecting portion 23, and outer spring 22 is rotated along its rotation direction, further compresses, then, on first
Guide surface 3112 squeezes the end of the other end of inner spring 21, and inner spring 21 rotates, and makes outer spring 22 and inner spring 21
Opposite direction rotating, outer spring 22 are turned round, and inner spring 21 opens pine, finally, the end of inside and outside spring connecting portion 23 and the other end of inner spring 21
Head is collapsed by the first gathering face 3113 and the second gathering face 3116, and together with nut 1 pre-tightening sleeve 3 is screwed into bolt and by regulation
Torque tightens nut 1.
In next step, pre-tightening sleeve 3 is disengaged, when pre-tightening sleeve 3 disengages, inner spring 21 is fallen under the action of own resilient in bolt
Thread on and wind bolt thread at least one enclose, since inner spring 21 is wound on thread, the other end of outer spring 22
It is connected on nut 1, thus, after disengaging pre-tightening sleeve 3, inner spring 21 does not remake circumferential movement, outer spring 22 with outer spring 22
It keeps by the state of torsion.
In this way, can persistently be turned round by outer spring 22, clamp force in the normality opposite with the loosening force of nut 1 is provided, when outer
When the torsion of spring 22 is more than the loosening force suffered by nut 1 so that nut 1 is added make-up, to maintain fastener clamping force
In normal range (NR).
The use of pre-tightening sleeve 3 can simplify the step of elastic force locking member 2 pre-tightens bolt and nut, make pretensioning operation
Completion it is quicker, and pretensioning effect is good.
In addition, in several specific embodiments of above-mentioned stop nut, the other end of outer spring is set can tear open
The mode of dress is connect with nut.It as a result, can be in the case where the elastic force of outer spring or inner spring fails to elastic force locking member
Integral replacing is carried out, the entirety of the stop nut is avoided to scrap, is conducive to recycle stop nut, saves processing system
Cause this.
In addition, in the specific embodiment of above-mentioned check bolt nut fastener, filled in the separate nut of columnar body
It offers to tighten on the end face of one end with chamber and uses groove.Tightening tool can be inserted by the groove as a result, to twist nut
Tightly.
In addition, in the specific embodiment of above-mentioned check bolt nut fastener, set on the lateral surface of nut
There is nut label, pre-tightening sleeve label is provided on the lateral surface of the columnar body of pre-tightening sleeve, in inside and outside spring connecting portion and interior bullet
In the case that the end of the other end of spring is respectively positioned on the inside of opening guide portion, nut label and the central point of pre-tightening sleeve label connect
Line is parallel to the axis of columnar body.
According to this structure, first nut label and pre-tightening sleeve can be marked when pre-tightening sleeve is sheathed on the outside of nut
It is inserted in again after alignment, in this way, the position aligning time of the opening guide portion of pre-tightening sleeve can be saved, improves and pre-tighten efficiency.
In addition, in above-mentioned several specific embodiments, the concrete structure of the present invention is illustrated, but it is unlimited
In this.
For example, in elastic force locking member specific embodiment, the end of the other end of inner spring is set to be formed to inner spring
Bend external interior spring shifting block, but not limited to this, can not also set above-mentioned interior spring shifting block, but sets inner spring
The end of the other end extends along the tangential direction of inner spring, is equally reached the locking function of above-mentioned elastic force locking member, but
It is the setting of interior spring shifting block, is more conducive to and rotation process is carried out to inner spring and outer spring.
In addition, in above-mentioned several specific embodiments, set the other end of outer spring in a detachable manner with
Nut connects.
But not limited to this, and the other end of outer spring can also be fixedly connected with nut, be equally reached above-mentioned
Pre-tighten function, still, according to the structure in specific embodiment, set the other end of outer spring in a detachable manner with spiral shell
Mother's connection can carry out integral replacing in the case where the elastic force of outer spring or inner spring fails to elastic force locking member as a result,
The entirety of the stop nut is avoided to scrap, is conducive to recycle stop nut, saves processing and manufacturing cost.
In addition, in above-mentioned several specific embodiments, setting nut is hex nut, further, in locking spiral shell
In female embodiment three, setting outer spring includes close to nut and can be sheathed on the hexagon spring section of outside of nut and separate
The coil component spring section of nut, set check bolt nut fastener specific embodiment in, nut assembly cavity is formed as chamber
The hexagonal prismoid shape cavity that body wall can be bonded with the outer wall of nut.
But not limited to this, and the shape of the nut can be diversified forms, and be not limited solely to hex nut, for example,
The nut can also be pentagon nut or tetragonal nut or octagon nut or round nut etc., three kinds of stop nut embodiment, outside
The close nut of spring and the external springs section of nut and the specific embodiment party of check bolt nut fastener can be sheathed on
In formula, the shape of nut assembly cavity is changed according to the shape of nut.
In addition, in the specific embodiment of above-mentioned check bolt nut fastener, filled in the separate nut of columnar body
It offers to tighten on the end face of one end with chamber and uses groove.
But not limited to this, can not also set above-mentioned tighten with groove, but the peripheral surface of columnar body to be set
The modes such as prismatic surface are set to, to realize the function by pre-tightening cover screwing nut, still, according to the knot in specific embodiment
Structure, set it is above-mentioned tighten with groove, rundown process operation is easier, and the processing and manufacturing for pre-tightening housing is easier.
In addition, in the specific embodiment of above-mentioned check bolt nut fastener, set on the lateral surface of nut
There is nut label, pre-tightening sleeve label is provided on the lateral surface of the columnar body of pre-tightening sleeve, in inside and outside spring connecting portion and interior bullet
In the case that the end of the other end of spring is respectively positioned on the inside of opening guide portion, nut label and the central point of pre-tightening sleeve label connect
Line is parallel to the axis of columnar body.
But not limited to this, and above-mentioned nut can not also be set to mark and marked with pre-tightening sleeve, be equally reached above-mentioned
Preload function, still, according to the structure in specific embodiment, above-mentioned nut is set to mark and pre-tightening sleeve label, can be
When pre-tightening sleeve is sheathed on the outside of nut, first will again it be inserted in after nut label and pre-tightening sleeve label alignment, in this way, preload can be saved
The position aligning time of the opening guide portion of set improves and pre-tightens efficiency.
In addition, in the specific embodiment of above-mentioned check bolt nut fastener, the structure of setting opening guide portion
As shown in fig. 7, it is respectively the first opening face and the second opening face to form the two of the opening guide portion opposite faces, with close to spiral shell
One end of female assembly cavity is lower end, using one end far from nut assembly cavity as upper end, then：Draw under including first in the first opening face
Guide face, guide surface and first collapses face on first, the second opening face include corresponding to second time guide surface of first time guide surface,
Corresponding to guide surface on second of guide surface on first and collapse the second of face corresponding to first and collapse face, wherein, under first
Guide surface, first collapse face, second collapse face and second on guide surface respectively with the axis parallel of columnar body；First
The lower end of upper guide surface is connect with the upper end of first time guide surface, and the upper end of the first guide surface is to close to guide surface on second
Direction is connect after tilting with the lower end in the first gathering face；The upper end of second time guide surface is connect with the lower end of guide surface on second,
And the lower end of second time guide surface is tilted to the direction far from first time guide surface；The other end of inside and outside spring connecting portion and inner spring
End can be located at opening guide portion inside.
But not limited to this, and the structure of above-mentioned opening guide portion can also be：
It is respectively the first opening face and the second opening face to form the two of the opening guide portion opposite faces, with close to nut
One end of assembly cavity is lower end, using one end far from nut assembly cavity as upper end, then：The first opening face includes the first guide surface
Face is collapsed with first, the second opening face includes collapsing face corresponding to the second guide surface of the first guide surface and corresponding to first
Second collapse face, wherein, first collapse face and second collapse face respectively with the axis parallel of columnar body；First guide surface
Upper end with first gathering face lower end connect, and the lower end of the first guide surface to far from the second guide surface direction inclination；The
The upper end of two guide surfaces connect with the lower end in the second gathering face, and the lower end of the second guide surface is to the direction of separate first guide surface
It tilts.The end of the other end of inside and outside spring connecting portion and inner spring can be located inside of opening guide portion etc..
As long as opening guide portion is enable to guide the end of the other end of inside and outside spring connecting portion and inner spring in columnar body
Circumferential direction on relative motion, so as to drive inner spring and outer spring respectively along respective rotation direction rotate.
In addition, the stop nut of the present invention and check bolt nut fastener, it can be by the various structures of the above embodiment
It is composed, can equally play above-mentioned effect.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of elastic force locking member, which is characterized in that the outer spring including inner spring He the outside for being sheathed on the inner spring,
The axis of the axis of the inner spring and the outer spring is same axis,
The direction extended along the same axis,
The end of one end of the outer spring is connect by inside and outside spring connecting portion with the end of the same end of the inner spring,
The rotation direction of the outer spring is oppositely oriented with the inner spring.
2. according to the elastic force locking member described in claim 1, which is characterized in that the end shape of the other end of the inner spring
Into the interior spring shifting block of the bend external to the inner spring.
3. a kind of stop nut, for being assembled with bolt, which is characterized in that have nut and claim 1 or right will
The elastic force locking member described in 2 is sought, wherein,
The other end of the outer spring is connect with the nut,
The inner spring, which can press, to be wound on the thread of the bolt.
4. according to the stop nut described in claim 3, which is characterized in that the end of the other end of the outer spring forms edge
The hook portion of direction bending extended from one end of the outer spring to the other end of the outer spring, in one end of the nut
End face on be provided with and be inserted into hole, the other end of the outer spring in a manner that the hook portion is inserted into the inside for being inserted into hole with
The nut connection.
5. according to the stop nut described in claim 3, which is characterized in that be provided on the end face of one end of the nut
Annular slot, the other end of the outer spring are connected in a manner of the inside that end rings are embedded in the annular slot with the nut
It connects.
6. according to the stop nut described in claim 3, which is characterized in that the other end of the outer spring is described to be sheathed on
The mode of the outside of nut is connect with the nut.
7. according to the stop nut described in claim 6, which is characterized in that the nut be hex nut, the outer spring
Hexagon spring section including the close nut and the outside that the nut can be sheathed on and the circle far from the nut
Spring section.
8. a kind of check bolt nut fastener, which is characterized in that have in pre-tightening sleeve and claim 3 to claim 7 and appoint
Stop nut described in one,
The pre-tightening sleeve includes columnar body, and the axis direction along the columnar body is formed in the inside of the columnar body
The elastic force locking component assembling chamber and nut assembly cavity being sequentially communicated,
One end far from elastic force locking component assembling chamber of the nut assembly cavity is connected with external environment,
The cavity wall of the nut assembly cavity can be bonded with the outer wall of the nut,
The tubular cavity along the axis direction extension of the columnar body is formed in the inside of elastic force locking component assembling chamber
Body isolated part, the internal diameter of the tubular housing isolated part are more than the outer diameter of the inner spring, the tubular housing isolation part
The outer diameter of part is less than the internal diameter of the outer spring,
The direction extension along the axis for being parallel to the columnar body is provided on the peripheral wall of the tubular housing isolated part
Opening guide portion,
The opening guide portion can guide the end of the other end of the inside and outside spring connecting portion and the inner spring in the column
Relative motion in the circumferential direction of shape main body, so as to which the inner spring and the outer spring be driven to be rotated respectively along respective rotation direction.
9. according to the check bolt nut fastener described in claim 8, which is characterized in that in the separate of the columnar body
It offers to tighten on the end face of one end of the nut assembly cavity and uses groove.
10. according to the check bolt nut fastener described in claim 8, which is characterized in that in the lateral surface of the nut
On be provided with nut label, be provided on the lateral surface of the columnar body of the pre-tightening sleeve pre-tightening sleeve label,
The inside of the opening guide portion is respectively positioned in the end of the inside and outside spring connecting portion and the other end of the inner spring
In the case of, the central point line of the nut label and pre-tightening sleeve label is parallel to the axis of the columnar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185118.4A CN108223547A (en) | 2018-03-06 | 2018-03-06 | Elastic force locking member, stop nut and check bolt nut fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185118.4A CN108223547A (en) | 2018-03-06 | 2018-03-06 | Elastic force locking member, stop nut and check bolt nut fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223547A true CN108223547A (en) | 2018-06-29 |
Family
ID=62667013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810185118.4A Pending CN108223547A (en) | 2018-03-06 | 2018-03-06 | Elastic force locking member, stop nut and check bolt nut fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223547A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280031A (en) * | 2021-05-21 | 2021-08-20 | 图力古日 | Strong-stability special-shaped double-screw assembly for mechanical configuration |
| CN113669350A (en) * | 2021-07-29 | 2021-11-19 | 河北光兴半导体技术有限公司 | Anti-loosening bolt structure |
| CN113958589A (en) * | 2021-10-25 | 2022-01-21 | 东风小康汽车有限公司重庆分公司 | Vibration-damping bolt |
-
2018
- 2018-03-06 CN CN201810185118.4A patent/CN108223547A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280031A (en) * | 2021-05-21 | 2021-08-20 | 图力古日 | Strong-stability special-shaped double-screw assembly for mechanical configuration |
| CN113669350A (en) * | 2021-07-29 | 2021-11-19 | 河北光兴半导体技术有限公司 | Anti-loosening bolt structure |
| CN113958589A (en) * | 2021-10-25 | 2022-01-21 | 东风小康汽车有限公司重庆分公司 | Vibration-damping bolt |
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