CN209654405U - Deformation type anti-loosen screw nut component - Google Patents
Deformation type anti-loosen screw nut component Download PDFInfo
- Publication number
- CN209654405U CN209654405U CN201821249384.0U CN201821249384U CN209654405U CN 209654405 U CN209654405 U CN 209654405U CN 201821249384 U CN201821249384 U CN 201821249384U CN 209654405 U CN209654405 U CN 209654405U
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- CN
- China
- Prior art keywords
- back taper
- nut
- stage body
- hole
- counterbore
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Abstract
The utility model discloses a kind of deformation type anti-loosen screw nut components, belong to fastener.It includes the male nut (3) that one end face has back taper stage body (4) with female nut (1) of back taper counterbore (2) and one end face；The surface of back taper counterbore (2) is interior elliptic conic shape structure, the screw thread of female nut (1) and the axis coaxle of the back taper counterbore；Back taper stage body (4) is oval frustum structure, the screw thread of public nut (3) and the axis coaxle of the back taper stage body.The utility model not only improved public nut to the coupling mechanism force of bolt, prevent thread looseness, but also be avoided that and shear action generated to bolt, improve bolt service life, moreover it is possible to nut assembly unbalance stress, the defects of thread pitch is big；It is a kind of nonstandard anti-loosen screw nut component.
Description
Technical field
The utility model relates to a kind of stop nut more particularly to a kind of deformation type anti-loosen screw nut components；Belong to fastener.
Background technique
Nut is the most common securing member of machinery field, general general standard fasteners.Plain nut be easy because
Mechanical frequent vibration and occur being threadedly coupled and loosen, or even fall off, cause the accident.For this purpose, increase is usually taken at present
The measures such as elastic opening washer, tooth form anti-skid washer, double nut avoid nut loosening, but effect not rationality.
In order to overcome universal standard nut interlocking effect it is poor, be easy loosen defect, " CN862040744 ",
The patent documents such as " CN982374054 ", " CN2014200982388 ", " CN2015206220490 ", " CN2016201826563 "
It discloses a kind of anti-loosen screw nut component with eccentric structure: including end face there is the public nut of the frustum of a cone and end face to have
Female nut of conical bore, the axis of thread and frustum of a cone axis or there are an eccentricities between circular cone axially bored line.It is former
Reason is: when male nut and female nut tightening, eccentricity can force male nut, female nut to be embraced respectively from both direction by bolt
Tightly, thread pitch is eliminated, to improve the coupling mechanism force of two nuts.Although above-mentioned patent can effectively avoid thread looseness, by
Bolt is held tightly from two opposite directions simultaneously in male nut and female nut, therefore radial shear can be generated to bolt, is influenced
Bolt service life.
Summary of the invention
In view of the above defects of the prior art, the utility model is intended to provide that a kind of locking effect is good, will not damage
Hurt the deformation type anti-loosen screw nut component of bolt.
To achieve the goals above, the utility model uses following technical scheme: it includes that one end face is heavy with back taper
Female nut in hole and one end face have the male nut of back taper stage body；The surface of back taper counterbore is interior elliptic conic shape structure,
The axis coaxle of the screw thread of female nut and the back taper counterbore；Back taper stage body is oval frustum structure, the screw thread of public nut
With the axis coaxle of the back taper stage body.
The hole base opening of back taper counterbore is ellipsoidal structure, hole top opening is circular configuration, and the platform bottom surface of back taper stage body is
Circular configuration, countertop are ellipsoidal structure；The short axle of hole base opening is less than platform basal diameter, and the long axis of countertop is greater than hole top opening
Diameter.
The hole base opening of back taper counterbore is circular configuration, hole top opening is ellipsoidal structure, and the platform bottom surface of back taper stage body is
Ellipsoidal structure, countertop are circular configuration；It is straight less than countertop that platform bottom surface long axis is greater than hole base opening diameter, hole top opening short axle
Diameter.
Compared with the prior art, the utility model on the basis of traditional structure by adopting the above-described technical solution, divide
The back taper counterbore surface on the back taper stage body surface of male nut or female nut has not been changed to ellipsoidal structure and has been eliminated partially
The heart away from, there is an advantage in that:
1) when two nut tightenings, back taper counterbore bottom hole can force the radially even generation elasticity in back taper stage body platform bottom
It deforms (contraction), to eliminate thread pitch and by bolt banding；Both improved public nut to the coupling mechanism force of bolt, prevent screw thread
The service life for loosening, and being avoided that and shear action is generated to bolt, improving bolt.
2) due to back taper stage body platform bottom can radially even contraction distortion, completely eliminate centering type stop nut
The big defect of component unbalance stress, screw thread unilateral gap, anti-loosing effect are more preferable.
3) when two nut tightenings, between back taper counterbore bottom hole and back taper stage body platform bottom, back taper counterbore Kong Dingyu
It is the cooperation of ellipsoidal structure and circular configuration between back taper stage body platform top, therefore can be in back taper counterbore and back taper platform
Two contact (area) patterns (or two contact band spots) uniformly distributed relative to axis are formed between body, increase the friction between two nuts
Power interlocks better reliability.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is the structural schematic diagram of the utility model mother's nut；
Fig. 3 is A-A cross-sectional view in Fig. 2；
Fig. 4 is the schematic perspective view of the utility model mother's nut；
Fig. 5 is the structural schematic diagram of the utility model public affairs nut；
Fig. 6 is B-B cross-sectional view in Fig. 5；
Fig. 7 is the schematic perspective view of the utility model public affairs nut.
In figure: female nut 1, back taper counterbore 2, hole base opening 2-1, hole top opening 2-2, male nut 3, back taper stage body 4, platform bottom
Face 4-1, countertop 4-2.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing.
The upper surface of female nut 1 offers the back taper counterbore 2 with its threaded coaxial as shown in Figure 1:, under public nut 3
There is the back taper stage body 4 being integrally connected and with its threaded coaxial in end face.The surface of back taper counterbore 2 is interior elliptic conic shape
Structure, back taper stage body 4 are oval frustum structure.
Embodiment 1, as shown in Fig. 2~7: the hole base opening 2-1 of back taper counterbore 2 is ellipsoidal structure, hole top opening 2-2 is round
Shape structure, the platform bottom surface 4-1 of back taper stage body 4 is circular configuration, countertop 4-2 is ellipsoidal structure；The short axle of hole base opening 2-1
The long axis of diameter, hole base opening 2-1 less than platform bottom surface 4-1 is equal to the diameter of platform bottom surface 4-1, and the long axis of countertop 4-2 is greater than hole
Top opening 2-2 diameter, countertop 4-2 long axis be equal to hole top opening 2-2 diameter.
Working principle
When two nut tightenings, since the wall thickness at the base opening 2-1 of hole is far longer than wall thickness at the 4-1 of platform bottom surface, circular configuration
Platform bottom surface 4-1 can be deformed into oval under the hole base opening 2-1 of ellipsoidal structure effect and wedge in the base opening 2-1 of hole；To
Keep the screw hole of public 4 bottom surface 4-1 of nut radially contracted and locks bolt banding.At the same time, at due to hole top opening 2-2
Wall thickness is far smaller than wall thickness at countertop 4-2, and the hole top opening 2-2 of circular configuration can squeezing in the countertop 4-2 of ellipsoidal structure
It is deformed into oval under swollen effect and forms cooperation with countertop 4-2；To realize between platform bottom surface 4-1 and hole top opening 2-2
Interlocking.
Embodiment 2, as shown in Fig. 2~7: the hole base opening 2-1 of back taper counterbore 2 is circular configuration, hole top opening 2-2 is oval
Shape structure, the platform bottom surface 4-1 of back taper stage body 4 is ellipsoidal structure, countertop 4-2 is circular configuration；The long axis of platform bottom surface 4-1
The short axle of diameter, platform bottom surface 4-1 greater than hole base opening 2-1 is equal to the diameter of hole base opening 2-1, and the short axle of hole top opening 2-2 is less than platform
The diameter of top surface 4-2, the long axis of hole top opening 2-2 are equal to the diameter of countertop 4-2.
Working principle
When two nut tightenings, since the wall thickness at the base opening 2-1 of hole is far longer than wall thickness at the 4-1 of platform bottom surface, ellipse knot
The platform bottom surface 4-1 of structure can be deformed into circle under the hole base opening 2-1 of circular configuration effect and wedge in the base opening 2-1 of hole；To make
The screw hole of public 4 bottom surface 4-1 of nut is radially contracted and locks bolt banding.At the same time, due to the wall at the top opening 2-2 of hole
Thickness is far smaller than wall thickness at countertop 4-2, and the hole top opening 2-2 of ellipsoidal structure can be swollen in squeezing for the countertop 4-2 of circular configuration
It is deformed into round under effect and forms cooperation with countertop 4-2；It is mutual between platform bottom surface 4-1 and hole top opening 2-2 to realize
Lock.
Claims (3)
1. a kind of deformation type anti-loosen screw nut component has female nut (1) and the one end of back taper counterbore (2) including one end face
Face has the public nut (3) of back taper stage body (4)；It is characterized by: the surface of back taper counterbore (2) is interior elliptic conic shape knot
Structure, the screw thread of female nut (1) and the axis coaxle of the back taper counterbore；Back taper stage body (4) is oval frustum structure, public spiral shell
The screw thread of female (3) and the axis coaxle of the back taper stage body.
2. deformation type anti-loosen screw nut component according to claim 1, it is characterised in that: the hole base opening of back taper counterbore (2)
(2-1) is ellipsoidal structure, hole top opening (2-2) is circular configuration, the platform bottom surface (4-1) of back taper stage body (4) be circular configuration,
Countertop (4-2) is ellipsoidal structure；The short axle of hole base opening (2-1) is less than platform bottom surface (4-1) diameter, the length of countertop (4-2)
Axis is greater than hole top opening (2-2) diameter.
3. deformation type anti-loosen screw nut component according to claim 1, it is characterised in that: the hole base opening of back taper counterbore (2)
(2-1) is circular configuration, hole top opening (2-2) is ellipsoidal structure, and the platform bottom surface (4-1) of back taper stage body (4) is ellipse knot
Structure, countertop (4-2) are circular configuration；The long axis of platform bottom surface (4-1) be greater than hole base opening (2-1) diameter, hole top opening (2-2) it is short
Axis is less than countertop (4-2) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821249384.0U CN209654405U (en) | 2018-08-03 | 2018-08-03 | Deformation type anti-loosen screw nut component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821249384.0U CN209654405U (en) | 2018-08-03 | 2018-08-03 | Deformation type anti-loosen screw nut component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209654405U true CN209654405U (en) | 2019-11-19 |
Family
ID=68505088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821249384.0U Active CN209654405U (en) | 2018-08-03 | 2018-08-03 | Deformation type anti-loosen screw nut component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209654405U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757700A (en) * | 2018-08-03 | 2018-11-06 | 王平安 | Deformation type anti-loosen screw nut component |
| CN108775325A (en) * | 2018-08-03 | 2018-11-09 | 王平安 | Deformation type combines stop nut |
| WO2021254248A1 (en) * | 2020-06-19 | 2021-12-23 | 黄林川 | Anti-vibration, anti-loosening wedge lock nut |
-
2018
- 2018-08-03 CN CN201821249384.0U patent/CN209654405U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757700A (en) * | 2018-08-03 | 2018-11-06 | 王平安 | Deformation type anti-loosen screw nut component |
| CN108775325A (en) * | 2018-08-03 | 2018-11-09 | 王平安 | Deformation type combines stop nut |
| WO2021254248A1 (en) * | 2020-06-19 | 2021-12-23 | 黄林川 | Anti-vibration, anti-loosening wedge lock nut |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |