CN209724933U - A kind of positive and negative check bolt nut - Google Patents
A kind of positive and negative check bolt nut Download PDFInfo
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- CN209724933U CN209724933U CN201920574244.9U CN201920574244U CN209724933U CN 209724933 U CN209724933 U CN 209724933U CN 201920574244 U CN201920574244 U CN 201920574244U CN 209724933 U CN209724933 U CN 209724933U
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- thread
- negative check
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Abstract
The utility model discloses a kind of positive and negative check bolt nuts, including the first nut, the second nut and bolt；Intersect compound positive thread and anti-thread are provided on the screw rod of the bolt；First nut and the second nut are successively bolted on the screw rod, the two arranged in series and are fitted closely；The internal screw thread direction of rotation of first nut and the second nut is in oppositely arranged.Positive and negative check bolt nut provided by the utility model, it is provided with intersect compound positive thread and anti-thread simultaneously on same section of screw rod, fastening effect is generated by the reversed thread of the first nut and the second nut, more more dynamic, tighter, achieve the purpose that locking, have the effect of locking, antivibration, and do not limit the position of the first nut and the second nut on screw rod, the same set of bolt and nut can be applied to different operating scene to fix the mechanical structure of different-thickness.
Description
Technical field
The utility model relates to mechanical fasteners field more particularly to a kind of positive and negative check bolt nuts.
Background technique
In modern allegro development pattern, the development of increasingly mechanization saves a large amount of manpower and material resources, and efficiency has
Bigger raising.Also occur some mechanical problems, such as the various screws mechanically for manufacturing production simultaneously
It loosens, is unable to run so that some machine components be made to damage even entire mechanical equipment.
Utility model content
In order to overcome at least one defect described in the above-mentioned prior art, the utility model provides a kind of positive and negative check bolt
Nut.
The utility model is that technical solution used by solving the problems, such as it is:
A kind of positive and negative check bolt nut, including the first nut, the second nut and bolt；It is set on the screw rod of the bolt
It is equipped with intersect compound positive thread and anti-thread；First nut and the second nut are successively bolted on the screw rod,
It the two arranged in series and fits closely；The internal screw thread direction of rotation of first nut and the second nut is in oppositely arranged.
Positive and negative check bolt nut provided by the utility model is provided with simultaneously on same section of screw rod and intersects again
The positive thread and anti-thread closed generates fastening effect by the reversed thread of the first nut and the second nut, more more dynamic tighter, reaches
The purpose of locking has the effect of locking, antivibration, and does not limit the position of the first nut and the second nut on screw rod, same
Different operating scene can be applied to fix the mechanical structure of different-thickness by covering the bolt and nut.
Further, intermeshing first flute profile is respectively arranged on the opposite face of first nut and the second nut
Face and the second Profile of AT.
Enhance the locking of the first nut and the second nut using the intermeshing of the first Profile of AT and the second Profile of AT as a result,
Power.
Further, there is ring-shaped distributed several angled protrusions, second Profile of AT in first Profile of AT
It is upper to have and the intermeshing groove of the angled protrusions.
Further, fixing end of first nut close to the bolt, the inclined direction of the angled protrusions and
The internal screw thread direction of rotation of one nut is identical.
Further, the fixing end of first nut far from the bolt, the inclined direction of the angled protrusions and
The internal screw thread direction of rotation of one nut is opposite.
As a result, by the cooperation of the inclined direction of angled protrusions and nut internal screw thread direction of rotation, the spiral shell is further strengthened
Locking, antivibration the effect of bolt nut also has the function of preventing layman from removing.
Further, the height of the angled protrusions is less than the screw pitch of the bolt and nut.Facilitate as a result, the first nut with
The locking of second nut.
Further, mark is provided on first nut and the second nut.It is straight when facilitating staff's operation as a result,
It connects and correct nut is chosen according to mark.
In conclusion positive and negative check bolt nut provided by the utility model has the following technical effect that
1) on same section of screw rod simultaneously be provided with intersect compound positive thread and anti-thread, by the first nut with
The reversed thread of second nut generates fastening effect, more more dynamic tighter, achievees the purpose that locking, has the effect of locking, antivibration, and
Do not limit the position of the first nut and the second nut on screw rod, the same set of bolt and nut can be applied to different operating scene with
The mechanical structure of fixed different-thickness；
2) by the cooperation of the inclined direction of angled protrusions and the first nut internal screw thread direction of rotation, the spiral shell is further strengthened
Locking, antivibration the effect of bolt nut also has the function of preventing layman from removing；
3) height of angled protrusions is less than the screw pitch of bolt and nut, facilitates the locking of the first nut and the second nut；
4) by mark, correct nut is directly just chosen according to mark when staff's operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is the perspective view of the explosion of positive and negative check bolt nut shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the first nut shown in FIG. 1 and the second nut；
Fig. 4 is the structural schematic diagram of the utility model embodiment 2；
Fig. 5 is the structural schematic diagram of the first nut shown in Fig. 4 and the second nut.
Wherein, appended drawing reference meaning is as follows:
1, bolt；11, screw rod；12, fixing end；2, the first nut；21, the first Profile of AT；22, angled protrusions；3, second
Nut；31, the second Profile of AT；32, groove.
Specific embodiment
In order to better understand and implement, the following will be combined with the drawings in the embodiments of the present invention, to the utility model
Technical solution in embodiment is clearly and completely described.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that limitation the utility model.
Embodiment 1
Refering to fig. 1 to Fig. 3, the utility model discloses a kind of positive and negative check bolt nuts, including the first nut 2, second
Nut 3 and bolt 1；The bolt 1 includes screw rod 11 and the fixing end 12 for being fixed on described 11 one end of screw rod, the bolt
Intersect compound positive thread and anti-thread are provided on 1 screw rod 11, the nut of different internal screw threads direction of rotation is equal as a result,
It can cooperate with screw rod 11 and be spirally connected.First nut 2 and the second nut 3 are successively bolted on the screw rod 11, the two series connection row
It arranges and fits closely；The internal screw thread direction of rotation of first nut 2 and the second nut 3 is in oppositely arranged.Described positive and negative anti-
In loose bolt and nut, fastening effect is generated by the reversed thread of the first nut 2 and the second nut 3, it is more more dynamic tighter, reach locking
Purpose, have the effect of locking, antivibration, and do not limit the position of the first nut 2 and the second nut 3 on screw rod 11, it is same
Different operating scene can be applied to fix the mechanical structure of different-thickness by covering the bolt and nut.
In the present embodiment, intermeshing is respectively arranged on the opposite face of first nut 2 and the second nut 3
One Profile of AT 21 and the second Profile of AT 31 utilize the intermeshing enhancing the of the first Profile of AT 21 and the second Profile of AT 31 as a result,
The coupling mechanism force of one nut 2 and the second nut 3.
Refering to fig. 1 and Fig. 3, there are ring-shaped distributed several angled protrusions 22 in first Profile of AT 21, described the
Have and the intermeshing groove 32 of the angled protrusions 22 in two Profile of AT 31.
In the present embodiment, when installation described in fixing end 12 of first nut 2 close to the bolt 1, first flute profile
Face 21 is located at the lower section of the first nut 2, the internal screw thread direction of rotation phase of the inclined direction of the angled protrusions 22 and the first nut 2
Together.Specifically, first nut 2 is anti-thread nut, second nut 3 is positive thread nut, and is located at the first nut 2
Lower section.It when the first nut 2 turns outward, need to rotate clockwise, at this point, the vertical plane of the vertical plane of angled protrusions 22 and groove 32
It offsets, the first nut 2 will drive the second nut 3 to rotate clockwise to lock the first nut 2；When the second nut 3 turns outward,
It need to rotate counterclockwise, at this point, the vertical plane of groove 32 and the vertical plane of angled protrusions 22 offset, the first nut 2 will prevent the second nut 3
Rotation.Thus, it is possible to further strengthen locking, antivibration the effect of the bolt and nut, also prevent layman from removing
Function.
Really, the first nut 2 can also be positive thread nut, and the second nut 3 is anti-thread nut, and locking principle is with aforementioned
Unanimously.
Preferably, the height of the angled protrusions 22 is less than the screw pitch of the bolt and nut, be able to facilitate the first nut with
The locking of second nut.
In the present embodiment, it is additionally provided with mark on first nut 2 and the second nut 3, to distinguish the peace of nut
Dress sequence directly chooses correct nut according to mark when facilitating staff's operation.
Embodiment 2
Refering to Fig. 4 and Fig. 5, the difference of embodiment 2 and embodiment 1 is only that on the first nut and the second nut.At this
In embodiment, the position of the first nut 2' and the second nut 3' opposite can be changed, at this point, the first nut 2' is far from described
The fixing end of bolt 1, the first Profile of AT 21' are located at the top of the first nut 2', the inclined direction of the angled protrusions 22'
It is opposite with the internal screw thread direction of rotation of the first nut 2'.Specifically, the first nut 2' is anti-thread nut, second spiral shell
Female 3' is positive thread nut, and is located at the top of the first nut 2'.When the second nut 3' is turned outward, need to rotate counterclockwise,
At this point, the vertical plane of groove 32' and the vertical plane of angled protrusions 22' offset, the second nut 3' will drive the first nut 2' to turn counterclockwise
It moves to lock the second nut 3'；It when the first nut 2' is turned outward, need to rotate clockwise, at this point, the vertical plane of angled protrusions 22'
It offsets with the vertical plane of groove 32', the second nut 3' will prevent the rotation of the first nut 2'.
Really, the first nut 2' can also be positive thread nut, and the second nut 3' is anti-thread nut, in front of locking principle
It states consistent.
In conclusion positive and negative check bolt nut disclosed in the utility model, is arranged simultaneously on same section of screw rod 11
There are intersect compound positive thread and anti-thread, fastening is generated by the reversed thread of the first nut 2 and the second nut 3 and is made
With, it is more more dynamic tighter, achieve the purpose that locking, have the effect of locking, antivibration, and does not limit the first nut 2 and the second nut 3 exists
Position on screw rod, the same set of bolt and nut can be applied to different operating scene to fix the mechanical structure of different-thickness；It is logical
The inclined direction of angled protrusions 22 and the cooperation of the first nut internal screw thread direction of rotation are crossed, the anti-of the bolt and nut is further strengthened
Loose, antivibration effect, also there is the function of preventing layman from removing.
Technological means disclosed in the utility model is not limited only to technological means disclosed in above embodiment, also
Including technical solution consisting of any combination of the above technical features.It should be pointed out that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (7)
1. a kind of positive and negative check bolt nut, including the first nut, the second nut and bolt, it is characterised in that:
Intersect compound positive thread and anti-thread are provided on the screw rod of the bolt；
First nut and the second nut are successively bolted on the screw rod, the two arranged in series and are fitted closely；
The internal screw thread direction of rotation of first nut and the second nut is in oppositely arranged.
2. positive and negative check bolt nut according to claim 1, it is characterised in that: first nut and the second nut
Intermeshing first Profile of AT and the second Profile of AT are respectively arranged on opposite face.
3. positive and negative check bolt nut according to claim 2, it is characterised in that: having in first Profile of AT is in ring
Several angled protrusions of shape distribution, have in second Profile of AT and the intermeshing groove of the angled protrusions.
4. positive and negative check bolt nut according to claim 3, it is characterised in that: first nut is close to the bolt
Fixing end, the inclined direction of the angled protrusions is identical as the internal screw thread direction of rotation of the first nut.
5. positive and negative check bolt nut according to claim 3, it is characterised in that: first nut is far from the bolt
Fixing end, the inclined direction of the angled protrusions is opposite with the internal screw thread direction of rotation of the first nut.
6. positive and negative check bolt nut according to claim 4 or 5, it is characterised in that: the height of the angled protrusions is small
In the screw pitch of the bolt and nut.
7. positive and negative check bolt nut according to any one of claims 2 to 5, it is characterised in that: first nut and
Mark is provided on second nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920574244.9U CN209724933U (en) | 2019-04-25 | 2019-04-25 | A kind of positive and negative check bolt nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920574244.9U CN209724933U (en) | 2019-04-25 | 2019-04-25 | A kind of positive and negative check bolt nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209724933U true CN209724933U (en) | 2019-12-03 |
Family
ID=68673043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920574244.9U Active CN209724933U (en) | 2019-04-25 | 2019-04-25 | A kind of positive and negative check bolt nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209724933U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958702A (en) * | 2019-04-25 | 2019-07-02 | 陈四中 | A kind of positive and negative check bolt nut |
| CN110987445A (en) * | 2019-12-18 | 2020-04-10 | 江苏科技大学 | Vibration-proof adjusting support |
| WO2023162404A1 (en) * | 2022-02-25 | 2023-08-31 | 志郎 畠山 | Non-loosening fastening structure |
-
2019
- 2019-04-25 CN CN201920574244.9U patent/CN209724933U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958702A (en) * | 2019-04-25 | 2019-07-02 | 陈四中 | A kind of positive and negative check bolt nut |
| CN110987445A (en) * | 2019-12-18 | 2020-04-10 | 江苏科技大学 | Vibration-proof adjusting support |
| CN110987445B (en) * | 2019-12-18 | 2021-10-19 | 江苏科技大学 | Vibration-proof adjusting support |
| WO2023162404A1 (en) * | 2022-02-25 | 2023-08-31 | 志郎 畠山 | Non-loosening fastening structure |
| JP2023124746A (en) * | 2022-02-25 | 2023-09-06 | 志郎 畠山 | Fastening structure without loosening |
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