CN206397898U - A kind of antivibration anti-loosing nut - Google Patents
A kind of antivibration anti-loosing nut Download PDFInfo
- Publication number
- CN206397898U CN206397898U CN201621343430.4U CN201621343430U CN206397898U CN 206397898 U CN206397898 U CN 206397898U CN 201621343430 U CN201621343430 U CN 201621343430U CN 206397898 U CN206397898 U CN 206397898U
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- wall section
- loosing
- nut
- antivibration
- loosing nut
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Abstract
The utility model is related to fastener areas, more particularly to a kind of antivibration anti-loosing nut.Antivibration anti-loosing nut includes body, and body inner peripheral surface is provided with internal thread, and the bottom of the tooth of the internal thread is provided with the inclined-plane for being used for that cooperation to be held out against with corresponding external screw thread tooth top, and the body, which is provided with, to be used to hold corresponding externally threaded clasping structure tightly.When mutually being tightened with conventional external screw thread, the clasping structure being arranged on body makes antivibration anti-loosing nut be held tightly with external screw thread, realize self-locking, simultaneously, the internal thread bottom of the tooth of antivibration anti-loosing nut of the present utility model is provided with inclined-plane, external screw thread tooth top is withstood on the inclined-plane of internal thread bottom of the tooth, so as to produce very big coupling mechanism force, prevent bolt opposing nut from moving axially, play anti-loosing effect, compared with current nut, antivibration anti-loosing nut of the present utility model has dual disconnecting prevention structure, anti-loosing effect is good, and it is simple in construction, directly screwed on during assembling, efficiency of assembling is high.
Description
Technical field
The utility model is related to fastener areas, more particularly to antivibration anti-loosing nut.
Background technology
Various machines and part will generally rely on threaded fastener assembly in being linked and packed, and normal thread is one 60 °
Complete cone is arranged to be formed with helix, and normal thread pair is supported the use, and the effect in assembling process in clamping force makes screw thread
Secondary 60 ° of inclined-planes are in contact, with assembling in place, under clamping force effect, and the two 60 ° of inclined-planes of contact for dorsad clamping force direction are produced
Friction, to meet basic locking requirement.Common nut can be released voluntarily in acutely or frequently vibrating, and cause equipment to be damaged
It is bad, lead to a disaster.Problem is released for solution nut, generally using methods such as locking plate, pin, chemical gluings, but passes through lock
Piece, pin realize that the method for nut anti-looseness is complicated, inconvenient using installing, and the method efficiency of assembling for passing through chemical gluing
Low and after chemical gluing nut does not allow easy to clean, and recycling rate of waterused is low.
Utility model content
The purpose of this utility model is to provide antivibration anti-loosing nut that is a kind of simple in construction and being capable of quick assembling.
To achieve the above object, the technical scheme of antivibration anti-loosing nut of the present utility model is：Antivibration anti-loosing nut
Including body, body inner peripheral surface is provided with internal thread, and the bottom of the tooth of the internal thread, which is provided with, to be used for and corresponding external screw thread tooth top top
The inclined-plane of tight fit, the body, which is provided with, to be used to hold corresponding externally threaded clasping structure tightly.
One end of the body is provided with least two open slots, the part on the body between adjacent two open slot to this
The tilted formation elastic arm of screwed hole of body, described elastic arm constitutes described clasping structure.
The body includes the cone wall section in body end, and the open slot is arranged in described cone wall section.
Crushed element of the body inner peripheral surface provided with protrusion, described crushed element constitutes the clasping structure.
The body includes circular straight wall section, and the crushed element is arranged on the circular straight wall section part of body inner peripheral surface
On, the wall thickness of circular straight wall section part is less than the wall thickness of remaining each several part on body.
The body includes cone wall section, and the crushed element is arranged on the cone wall section part of body inner peripheral surface.
Described crushed element is uniformly arranged at least two along cone wall section is circumferential, and the outer peripheral face of described cone wall section is provided with
The thickness of cone wall section in arc groove corresponding with crushed element, described arc groove region is less than cone wall section, and upper remaining is each
Partial thickness.
The body is provided with hold-fast ring, and the internal diameter of described hold-fast ring is less than the big footpath of internal thread, described hold-fast ring
Constitute described clasping structure.
Described crushed element corresponding region on body, which is inwardly extruded, to be formed.
The range of tilt angles of described inclined-plane and body inner peripheral surface is 25 degree to 35 degree.
The beneficial effects of the utility model are：The bottom of the tooth of the internal thread of body is provided with inclined-plane, and body, which is provided with, to be used to hold tightly
The clasping structure of stud.When mutually being tightened with conventional external screw thread, the clasping structure being arranged on body makes antivibration anti-loosing nut
Held tightly with external screw thread, realize self-locking, meanwhile, the internal thread bottom of the tooth of antivibration anti-loosing nut of the present utility model is provided with inclined-plane, outside
Screw thread tooth top is withstood on the inclined-plane of internal thread bottom of the tooth, so as to produce very big coupling mechanism force, prevents bolt opposing nut from moving axially,
Anti-loosing effect is played, compared with current nut, antivibration anti-loosing nut of the present utility model has dual disconnecting prevention structure, locking
Effect is good, and simple in construction, is directly screwed on during assembling, and efficiency of assembling is high.
Further, the crushed element on the body inner peripheral surface constitutes the clasping structure, by body inner peripheral surface
Crushed element is set, crushed element can be made to be remained when nut is vibrated to the axial limiting to nut, increased locking
Effect.
Further, body includes cone wall section, and the crushed element is arranged on the cone wall section part of body inner peripheral surface.If
Put the processing for facilitating crushed element in cone wall section.
Further, the body includes circular straight wall section, and the circle that the crushed element is arranged on body inner peripheral surface is straight
On wall section part, the wall thickness of circular straight wall section part is less than the wall thickness of each several part on body, and it is relatively thin that crushed element is arranged on wall thickness
Position it is convenient process, while nor affecting on the fastening effect of internal thread on body.
Brief description of the drawings
Fig. 1 fills for the internal thread of the specific embodiment 1 of antivibration anti-loosing nut of the present utility model with corresponding external screw thread
With rear stress diagram；
Fig. 2 is the internal and external threads stress contrast schematic diagram of the specific embodiment 1 of antivibration anti-loosing nut of the present utility model；
Fig. 3 is the structural representation of the specific embodiment 1 of antivibration anti-loosing nut of the present utility model；
Fig. 4 is the half sectional view of Fig. 3 left view；
Fig. 5 is the structural representation of the specific embodiment 2 of antivibration anti-loosing nut of the present utility model；
Fig. 6 is the half sectional view of Fig. 5 left view；
Fig. 7 is the structural representation of the specific embodiment 3 of antivibration anti-loosing nut of the present utility model；
Fig. 8 is the half sectional view of Fig. 7 left view；
Fig. 9 is the structural representation of the specific embodiment 4 of antivibration anti-loosing nut of the present utility model；
Figure 10 is the half sectional view of Fig. 9 left view.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment 1 of antivibration anti-loosing nut of the present utility model, as shown in Figures 1 to 4, antivibration anti-loosing nut
2 include the internal thread 22 on body 21, the inner peripheral surface of body 21.In the present embodiment, the external screw thread 11 of internal thread 22 and bolt 1 is matched somebody with somebody
Close.The bottom of the tooth of internal thread 22 be provided be used for when bolt 1 is assembled with antivibration anti-loosing nut 2 with the corresponding tooth of bolt external screw thread 11
Hold out against the inclined-plane 221 of cooperation, the tilt angle alpha of inclined-plane 221 and the body inner peripheral surface of antivibration anti-loosing nut 2 is 30 degree.Its
In his embodiment, the tilt angle alpha of inclined-plane and body inner peripheral surface can be 25 degree to 35 degree.The incline direction on inclined-plane 221 should
It is that on nut precession direction, the direction from close to nut axis to away from nut axis is tilted.
The tooth top of bolt external screw thread 11 is withstood on the inclined-plane 221 of the bottom of the tooth of internal thread 22 and with inclined-plane 221 into linear contact lay, outer spiral shell
The inclined-plane that the tooth top of line 11 withstands on internal thread bottom of the tooth can produce larger coupling mechanism force, as shown in figure 1, when clamping force is F, it is corresponding
Coupling mechanism force is 1.732F.As shown in Fig. 2 A is internal thread and external screw thread force analysis in the present embodiment, B is interior in the prior art
Screw thread and external screw thread force analysis, contrast understand that normal thread is under clamping force F effects in the prior art, and screw thread is mainly face
Contact with face, the corresponding cross force F1 for locking purpose is smaller, and has the trend gradually weakened, and the utility model
Antivibration anti-loosing nut the bottom of the tooth inclined-plane 221 of internal thread 22 effect under, inclined-plane 221 and the external screw thread tooth top of internal thread 22 are formed
The clamping force F vertically of linear contact lay, internal thread 22 and external screw thread 11 is after ramp effect, and corresponding cross force F1 is larger simultaneously
And it is uniform, more preferable anti-loosing effect can be realized.
Crushed element in crushed element of the body inner peripheral surface of body provided with protrusion, the present embodiment constitutes body 21 and used
In the corresponding externally threaded clasping structure of holding.Body 21 includes the cone wall section 211 in end, the cone wall section of body inner peripheral surface
Part is provided with the crushed element for three protrusions being arranged circumferentially along cone wall section（Deformation thereof amount is smaller, in accompanying drawing
It is not shown）, the outer peripheral face of cone wall section 211 is provided with groove 213 corresponding with the crushed element of protrusion, in the region of groove 213
The thickness for boring wall section is less than the thickness of remaining upper each several part of cone wall section, and the setting of groove 213 facilitates crush cones wall section to form protrusion
Crushed element.
The crushed element of three protrusions in the present embodiment passes through to the inside crimp in the region of groove 213 on body 21
Formed afterwards on the body inner peripheral surface of body, controllable interference occurs when assembling with external screw thread for three crushed elements to produce
Effective torque, it is ensured that antivibration anti-loosing nut 2 reaches the locking requirement of antivibration, even if due to assembling under fixed installation moment of torsion
Loosened caused by the complex working conditions such as ambient vibration, even if can ensure that product occurs under the axial limiting effect of crushed element
Loosening is not also released, and makes product pine without de-.
After antivibration anti-loosing nut 2 is assembled on bolt 1, three crushed elements make the internal thread of antivibration anti-loosing nut 2
22 hold tightly with the external screw thread 11 of bolt 1, realize self-locking, but the enclasping force mistake between three crushed elements and the external screw thread of bolt
The externally threaded damage of bolt can be caused when big.In order to avoid external screw thread is damaged, the internal thread of nut of the present utility model
Bottom of the tooth be provided with inclined-plane, external screw thread tooth top, which is withstood on, produces very big coupling mechanism force on the inclined-plane of internal thread bottom of the tooth, can prevent bolt with
Nut is moved axially relatively, and improves the anti-loosing effect of nut.Under the booster action on the inclined-plane at interior thread bottom, it can drop
Required enclasping force between low distressed structure and external screw thread, so as to prevent the external screw thread of bolt to be damaged, is improved externally threaded
Service life.The antivibration anti-loosing nut for causing to reuse excessive compared to the enclasping force of existing general clasping structure, this
Nut in embodiment is on the premise of the enclasping force of reduction clasping structure, by the locking that nut is realized on bottom of the tooth setting inclined-plane
Anticreep, can meet the reuse of at least more than 5 times, greatly reduce cost.
The specific embodiment 2 of antivibration anti-loosing nut of the present utility model, the area of the present embodiment and above-mentioned specific embodiment 1
It is not only that：As shown in Figure 5 and Figure 6, the body 31 of the antivibration anti-loosing nut 3 in the present embodiment includes circular straight wall section 311,
Crushed element is arranged on circular straight wall section in crushed element of the circular straight wall section provided with protrusion of body inner peripheral surface, the present embodiment
End constitute the throat structure of circular straight wall section.The crushed element of the present embodiment is also to be made up of crimp.By setting
The annular crushed element and the external screw thread of bolt put are held tightly, realize self-locking, and the crushed element of annular is compared along nut circumference
Spaced crushed element, annular crushed element and externally threaded top pressure area are bigger, and anti-loosing effect is more preferable.
The specific embodiment 3 of antivibration anti-loosing nut of the present utility model, the area of the present embodiment and above-mentioned specific embodiment 1
It is not only that：As shown in Figure 7 and Figure 8, the cone wall section 411 on the body 41 of the nut 4 of the present embodiment is provided with open slot 412,
Part between adjacent apertures groove is formed in elastic arm 413, the present embodiment to screwed hole is tilted, and open slot is provided with four, four
The part deformed on elastic arm into screwed hole constitutes the crushed element being arranged on the body inner peripheral surface of body, by elastic arm and outside
Screw thread is held tightly, realizes the locking of nut.Similarly, the analysis in embodiment 1, due to being set and external screw thread tooth top top in bottom of the tooth
Elastic arm in the inclined-plane of tight fit, the present embodiment need not too big elastic force, convenient processing, increase service life, while also can
It is enough to meet the requirement reused.
The difference of the specific embodiment 4 of antivibration anti-loosing nut of the present utility model, the present embodiment and above-described embodiment 1 is only
It is：As shown in Figure 9 and Figure 10, clasping structure includes the hold-fast ring 52 that nylon is made being installed on body 51.Hold-fast ring is consolidated
It is scheduled on body, and body is provided with the ring shaped retainer member 511 for being used for fixing hold-fast ring, ring shaped retainer member 511 encloses with body 51
Into the semi-surrounding structure with hold-fast ring accommodating chamber, facilitate the assembling of hold-fast ring.Ring shaped retainer member 511 is integral type with body 51
Structure.The internal diameter of hold-fast ring is less than the big footpath of internal thread, and external screw thread produces interference with hold-fast ring during assembling, and external screw thread is in hold-fast ring
Voluntarily tap out on medial surface, external screw thread is held tightly by hold-fast ring.Similarly, the inclined-plane of internal thread bottom of the tooth can be carried out to external screw thread
Locking, reduction hold-fast ring is to externally threaded enclasping force, increase nut, externally threaded service life.
External screw thread interferes to produce enclasping force with hold-fast ring when internal thread in the present embodiment is assembled with external screw thread, it is ensured that
Nut is issued to locking requirement in fixed installation moment of torsion.The material for wherein holding part tightly can also be other resinous woods such as PP resins
Material, can also be sheet metal, when holding part tightly for sheet metal, and the thickness of sheet metal is less than externally threaded pitch, when external screw thread is assembled
Interference is produced with sheet metal, so as to produce the enclasping force held tightly to external screw thread.In other embodiment, the material for holding part tightly can be with
Other softer metals such as fine aluminium, now hold tightly part material hardness should with external screw thread can setting installation moment of torsion
Interfere and can smoothly be installed in place with holding part during installation and be defined.
In the other embodiment of antivibration anti-loosing nut of the present utility model, the profile of above-mentioned nut can be Shi Erjiao,
Corner etc.；Above-mentioned body can not set cone wall section, and the crushed element of protrusion is set directly at appointing on the body inner peripheral surface of body
Meaning position, effect is preferably held tightly of course for that can play, while convenient install, crushed element is preferably provided at nut precession
The rear end in direction；Annular crushed element on above-mentioned circular straight wall section part can be arranged far from the position of end；It is above-mentioned
The crushed element of annular can be not provided with circular straight wall section part, and is uniformly arranged at least two spaced variant parts
Point；Above-mentioned annular crushed element can set at least two.
Claims (10)
1. antivibration anti-loosing nut, including body, body inner peripheral surface are provided with internal thread, it is characterised in that：The internal thread
Bottom of the tooth is provided with the inclined-plane for being used for that cooperation to be held out against with corresponding external screw thread tooth top, and the body, which is provided with, to be used to hold corresponding outer spiral shell tightly
The clasping structure of line.
2. antivibration anti-loosing nut according to claim 1, it is characterised in that：One end of the body is provided with least two
Part on open slot, the body between adjacent two open slot is to the tilted formation elastic arm of screwed hole of body, described bullet
Arm constitutes described clasping structure.
3. antivibration anti-loosing nut according to claim 2, it is characterised in that：The body is included in body end
Wall section is bored, the open slot is arranged in described cone wall section.
4. antivibration anti-loosing nut according to claim 1, it is characterised in that：The body inner peripheral surface is provided with protrusion
Crushed element, described crushed element constitutes the clasping structure.
5. antivibration anti-loosing nut according to claim 4, it is characterised in that：The body includes circular straight wall section, institute
State crushed element to be arranged on the circular straight wall of body inner peripheral surface section part, the wall thickness of circular straight wall section part is less than on body it
The wall thickness of remaining each several part.
6. antivibration anti-loosing nut according to claim 4, it is characterised in that：The body includes cone wall section, described to become
Shape part is arranged on the cone wall section part of body inner peripheral surface.
7. antivibration anti-loosing nut according to claim 6, it is characterised in that：Described crushed element is circumferential along cone wall section
At least two are uniformly arranged, the outer peripheral face of described cone wall section is provided with arc groove corresponding with crushed element, described arc
The thickness of cone wall section in connected in star region is less than the thickness of remaining upper each several part of cone wall section.
8. antivibration anti-loosing nut according to claim 1, it is characterised in that：The body is provided with hold-fast ring, described
The internal diameter of hold-fast ring be less than the big footpath of internal thread, described hold-fast ring constitutes described clasping structure.
9. the antivibration anti-loosing nut according to claim any one of 4-7, it is characterised in that：Described crushed element is by this
Corresponding region inwardly extrudes to be formed on body.
10. the antivibration anti-loosing nut according to claim any one of 1-8, it is characterised in that：Described inclined-plane and body
The range of tilt angles of inner peripheral surface is 25 degree to 35 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621343430.4U CN206397898U (en) | 2016-12-08 | 2016-12-08 | A kind of antivibration anti-loosing nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621343430.4U CN206397898U (en) | 2016-12-08 | 2016-12-08 | A kind of antivibration anti-loosing nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397898U true CN206397898U (en) | 2017-08-11 |
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ID=59509406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621343430.4U Active CN206397898U (en) | 2016-12-08 | 2016-12-08 | A kind of antivibration anti-loosing nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545563A (en) * | 2016-12-08 | 2017-03-29 | 河南航天精工制造有限公司 | Antivibration anti-loosing nut |
-
2016
- 2016-12-08 CN CN201621343430.4U patent/CN206397898U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545563A (en) * | 2016-12-08 | 2017-03-29 | 河南航天精工制造有限公司 | Antivibration anti-loosing nut |
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