CN206770372U - Check bolt - Google Patents
Check bolt Download PDFInfo
- Publication number
- CN206770372U CN206770372U CN201720528692.6U CN201720528692U CN206770372U CN 206770372 U CN206770372 U CN 206770372U CN 201720528692 U CN201720528692 U CN 201720528692U CN 206770372 U CN206770372 U CN 206770372U
- Authority
- CN
- China
- Prior art keywords
- screw thread
- nut
- derotation
- loose structure
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a kind of check bolt, it is related to technical field of fastening.The bolt includes nut and the screw rod being connected with the nut, the screw rod is provided with one section of derotation screw thread opposite with the dextrorotation thread rotary orientation on the screw rod close to one end of the nut, derotation nut is combined with the derotation screw thread, the external diameter of the derotation screw thread is more than the external diameter of the dextrorotation screw thread, and the derotation screw thread on the annulus end face of one end of the dextrorotation threaded engagement with being provided with the first anti-loose structure.Locking, convenient disassembly the requirement of strength can be achieved by being provided with positive and reverse return screw thread and anti-loose structure in the utility model.
Description
Technical field
Technical field of fastening is the utility model is related to, is to be related to a kind of check bolt more specifically.
Background technology
Bolt is the widely used fastener among daily life manufactures in industrial production, and often coordinating with nut makes
With using the inclined-plane circular rotating of connector and the physics of frictional force and mathematical principle, fastening implements parts by easy stages.
But in the case where some are vibrated, the change of load or the change of environment cause the loosening of bolt top nut, cause to take off
Fall, have a negative impact to the structure or part of connection, cause damage, or even more serious accident occurs.It is existing to be anti-loosening
Following several ways are common are in technology.
（1）Several auxiliary screws are set on the nut of kingbolt bar, and auxiliary screw is passed through with corresponding auxiliary bolt,
The lower surface of nut is reached, auxiliary bolt lower surface is in contact with being arranged on the pad of nut lower surface, makes auxiliary bolt branch
Support realizes the pretension to kingbolt between nut and pad, by auxiliary bolt, prevents bolt from rotating, realizes locking.It is this
Connected mode, particularly in having the environment of vibration, anti-loosing effect is poor.
（2）Pairs of anti-loose nut, it is arranged on screw rod rod end, increases the fastening of bolt by two nut surface extruding
Property, this common locking mode, same anti-loosing effect is undesirable in the environment for have vibration.
（3）Adhesive is used in fastening bolt, can so be made troubles to dismounting.
Utility model content
The technical problems to be solved in the utility model is to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of check bolt,
By being provided with positive and reverse return screw thread and anti-loose structure, the locking requirement of strength can be achieved.
To achieve the above object, technical solution adopted in the utility model is：A kind of check bolt, including nut are provided
The screw rod being connected with the nut, the screw rod are provided with one section and the dextrorotation spiral shell on the screw rod close to one end of the nut
The oppositely oriented derotation screw thread of line, is combined with derotation nut on the derotation screw thread, and the external diameter of the derotation screw thread is more than described
The external diameter of dextrorotation screw thread, the derotation screw thread are locking with being provided with first on the annulus end face of one end of the dextrorotation threaded engagement
Structure.
Further, first anti-loose structure is multiple first anti-skid bulges being arranged on the annulus end face.
Further, first anti-loose structure is the multiple first locking ratchets being arranged on the annulus end face, institute
It is identical with the rotation direction of the dextrorotation screw thread to state the first locking ratchet.
Further, the second anti-loose structure is provided with the first end face that the derotation nut connects with connector.
Further, second anti-loose structure is multiple second anti-skid bulges being arranged in the first end face.
Further, second anti-loose structure is the multiple second locking ratchets being arranged in the first end face, institute
It is identical with the rotation direction of the dextrorotation screw thread to state the second locking ratchet.
Further, it is combined with clamp nut on the dextrorotation screw thread.
Further, the 3rd anti-loose structure is provided with the second end face that the clamp nut connects with connector.
Further, the 3rd anti-loose structure is multiple 3rd anti-skid bulges being arranged in the second end face.
Further, the 3rd anti-loose structure is the multiple 3rd locking ratchets being arranged in the second end face, institute
It is identical with the rotation direction of the derotation screw thread to state the 3rd locking ratchet.
Compared with prior art, it is using beneficial effect caused by above-mentioned technical proposal：The utility model is by setting
Positive and reverse return screw thread is equipped with, locking, convenient disassembly the requirement of strength can be achieved；By being provided with the first anti-loose structure, increase contact
Face frictional force, is easy to fastening connection piece, effectively prevents from loosening；By being provided with derotation nut, can make bolt produce it is larger it is pre- should
Power, further prevent to loosen, strengthen anti-loosening property.
Brief description of the drawings
Fig. 1 is the cross-sectional view for the check bolt that the utility model embodiment 1 provides.
Fig. 2 is the cross-sectional view for the check bolt that the utility model embodiment 2 provides.
Fig. 3 is the cross-sectional view for the check bolt that the utility model embodiment 3 provides.
Fig. 4 is the structural representation of nut 1 and screw rod 2 in Fig. 1.
Fig. 5 is the structural representation of nut 1 and screw rod 2 in Fig. 2.
Wherein, each reference in figure：1- nuts；2- screw rods；21- dextrorotation screw threads；22- derotation screw threads；23- annulus end
Face；The anti-loose structures of 24- first；3- derotation nuts；4- clamp nuts；5- first end faces；The anti-loose structures of 6- second；The ends of 7- second
Face；The anti-loose structures of 8- the 3rd；The connectors of 9- first；The connectors of 10- second.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, is described in further detail to the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Embodiment 1：In the present embodiment, Fig. 1 and Fig. 4 are referred to, the utility model includes nut 1 and connected with the nut 1
The screw rod 2 connect, the screw rod 2 are provided with one section and the rotation direction phase of dextrorotation screw thread 21 on the screw rod 2 close to one end of the nut 1
Anti- derotation screw thread 22, by being provided with positive and reverse return screw thread, the locking requirement of strength can be achieved；Coordinate on the derotation screw thread 22
There is derotation nut 3, by adjusting the derotation nut 3, can produce bolt more high-prestressed, further prevent to loosen, enhancing
Anti-loosening property；The external diameter of the derotation screw thread 22 be more than the dextrorotation screw thread 21 external diameter, the derotation screw thread 22 with it is described just
The first anti-loose structure 24 is provided with the annulus end face 23 of one end that rotation screw thread 21 connects, increases contact surface frictional force, is easy to tight
Be connected fitting, effectively prevents from loosening.
Check bolt provided by the utility model, compared with prior art, by being provided with positive and reverse return screw thread, it can be achieved strong
Power is locking, the requirement of convenient disassembly；By being provided with the first anti-loose structure, increase contact surface frictional force, be easy to fastening connection piece,
Effectively prevent from loosening；It by being provided with derotation nut, can produce bolt more high-prestressed, further prevent to loosen, enhancing is anti-
Loose performance.
Further, Fig. 1 and Fig. 4 are referred to, a kind of specific embodiment party as check bolt provided by the utility model
Formula, first anti-loose structure 24 are the multiple first locking ratchets being arranged on the annulus end face 23, and described first is locking
Ratchet is identical with the rotation direction of the dextrorotation screw thread 21, increases contact surface frictional force, is easy to fastening connection piece, effectively prevents from loosening.
Further, referring to Fig. 1, a kind of embodiment as check bolt provided by the utility model, institute
State and the second anti-loose structure 6 is provided with the first end face 5 that derotation nut 3 connects with connector, increase contact surface frictional force, be easy to
Fastening connection piece, effectively prevent from loosening.
Further, referring to Fig. 1, a kind of embodiment as check bolt provided by the utility model, institute
It is the multiple second locking ratchets being arranged in the first end face 5, the second locking ratchet and institute to state the second anti-loose structure 6
It is identical to state the rotation direction of dextrorotation screw thread 21, increases contact surface frictional force, is easy to fastening connection piece, effectively prevents from loosening.
Further, referring to Fig. 1, a kind of embodiment as check bolt provided by the utility model, institute
State and clamp nut 4 is combined with dextrorotation screw thread 21, to fastening connection piece.
Further, referring to Fig. 1, a kind of embodiment as check bolt provided by the utility model, institute
State and the 3rd anti-loose structure 8 is provided with the second end face 7 that clamp nut 4 connects with connector, increase contact surface frictional force, be easy to
Fastening connection piece, effectively prevent from loosening.
Further, referring to Fig. 1, a kind of embodiment as check bolt provided by the utility model, institute
It is the multiple 3rd locking ratchets being arranged in the second end face 7, the 3rd locking ratchet and institute to state the 3rd anti-loose structure 8
It is identical to state the rotation direction of derotation screw thread 22, increases contact surface frictional force, is easy to fastening connection piece, effectively prevents from loosening.
Embodiment 2：In the present embodiment, Fig. 2 and Fig. 5 are referred to, difference from Example 1 is, new as this practicality
A kind of embodiment for the check bolt that type provides, first anti-loose structure 24 are to be arranged on the annulus end face 23
Multiple first anti-skid bulges, further, first anti-skid bulge is shaped as the solids such as cylinder or cuboid or spheroid
Shape, increase contact surface frictional force, be easy to fastening connection piece, effectively prevent from loosening.
Further, referring to Fig. 2, a kind of embodiment as check bolt provided by the utility model, institute
It is multiple second anti-skid bulges being arranged in the first end face 5 to state the second anti-loose structure 6, and further, described second is anti-
Sliding convex shape is the three-dimensional shape such as cylinder or cuboid or spheroid, increases contact surface frictional force, is easy to fastening connection piece, has
Effect prevents from loosening.
Further, referring to Fig. 2, a kind of embodiment as check bolt provided by the utility model, institute
It is multiple 3rd anti-skid bulges being arranged in the second end face 7, further, the three proofings to state the 3rd anti-loose structure 8
Sliding convex shape is the three-dimensional shape such as cylinder or cuboid or spheroid, increases contact surface frictional force, is easy to fastening connection piece, has
Effect prevents from loosening.
Embodiment 3：In the present embodiment, referring to Fig. 3, being with embodiment 1 and the difference of embodiment 2, this reality is used as
With a kind of embodiment of the check bolt of new offer, second anti-loose structure 6 is to be arranged on the first end face 5
On the first groove, is embedded with the first magnet in first groove；By this setting, when first connector 9 is irony
During part so that the first end face 5 can hold first connector 9, increase contact surface adhesive force, and fixation is more firm,
Anti-loosening property is good.
Further, referring to Fig. 3, a kind of embodiment as check bolt provided by the utility model, institute
It is the second groove being arranged in the second end face 7 to state the 3rd anti-loose structure 8, and the second magnetic is embedded with second groove
Iron；By this setting, when second connector 10 is irony part so that the second end face 7 can hold described second
Connector 10, increase contact surface adhesive force, fixation is more firm, and anti-loosening property is good.
The derotation nut 3 is screwed into the screw rod 2 by the utility model first in use, referring to Fig. 1-Fig. 5
The derotation screw thread 22；Then first connector 9, second connector 10 and the clamp nut 4 are inserted successively
Enter the dextrorotation screw thread 21 to the screw rod 2, first anti-loose structure 24 is in contact with first connector 9, increase
Contact surface frictional force, it is easy to the fastening connection piece of clamp nut 4 so that first connector 9 and second connector
10 close connections；The derotation nut 3 is finally tightened, increases the prestressing force of bolt, and then prevents from loosening；Now, described second
Anti-loose structure 6 is in contact with the end face of first connector 9, the 3rd anti-loose structure 8 and second connector 10
End face is in contact, and increases the frictional force or adhesive force of nut and connector, prevents its loosening so that fixation is more firm, enhancing
Anti-loosening property；And due to the presence of positive and reverse return screw thread, when bolt looseness, due to the dextrorotation screw thread 21 and the derotation spiral shell
The thread rotary orientation of line 22 on the contrary, and then tighten the derotation nut 3, can further prevent to loosen.
Locking, convenient disassembly the requirement of strength can be achieved by being provided with positive and reverse return screw thread in the utility model；Pass through setting
There is the first anti-loose structure, increase contact surface frictional force, be easy to fastening connection piece, effectively prevent from loosening；By being provided with derotation spiral shell
Mother, can produce bolt more high-prestressed, further prevent to loosen, strengthen anti-loosening property；By being provided with the second anti-loose structure
With the 3rd anti-loose structure, the frictional force or adhesive force of increase nut and connector so that fixation is more firm, strengthens locking property
Energy.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its design is subject to equivalent substitution or change, should all cover within the scope of protection of the utility model.
Claims (10)
1. check bolt, including nut（1）With with the nut（1）The screw rod of connection（2）, it is characterised in that：The screw rod（2）
Close to the nut（1）One end be provided with one section with the screw rod（2）On dextrorotation screw thread（21）Oppositely oriented derotation screw thread
（22）, the derotation screw thread（22）On be combined with derotation nut（3）, the derotation screw thread（22）External diameter be more than the dextrorotation spiral shell
Line（21）External diameter, the derotation screw thread（22）With the dextrorotation screw thread（21）The annulus end face of the one end to connect（23）Upper setting
There is the first anti-loose structure（24）.
2. check bolt according to claim 1, it is characterised in that：First anti-loose structure（24）It is described to be arranged at
Annulus end face（23）On multiple first anti-skid bulges.
3. check bolt according to claim 1, it is characterised in that：First anti-loose structure（24）It is described to be arranged at
Annulus end face（23）On the multiple first locking ratchets, the first locking ratchet and the dextrorotation screw thread（21）Rotation direction phase
Together.
4. check bolt according to claim 1, it is characterised in that：The derotation nut（3）To connect with connector
End face（5）On be provided with the second anti-loose structure（6）.
5. check bolt according to claim 4, it is characterised in that：Second anti-loose structure（6）It is described to be arranged at
First end face（5）On multiple second anti-skid bulges.
6. check bolt according to claim 4, it is characterised in that：Second anti-loose structure（6）It is described to be arranged at
First end face（5）On the multiple second locking ratchets, the second locking ratchet and the dextrorotation screw thread（21）Rotation direction it is identical.
7. check bolt according to claim 1, it is characterised in that：The dextrorotation screw thread（21）On be combined with clamp nut
（4）.
8. check bolt according to claim 7, it is characterised in that：The clamp nut（4）To connect with connector
Biend（7）On be provided with the 3rd anti-loose structure（8）.
9. check bolt according to claim 8, it is characterised in that：3rd anti-loose structure（8）It is described to be arranged at
Second end face（7）On multiple 3rd anti-skid bulges.
10. check bolt according to claim 8, it is characterised in that：3rd anti-loose structure（8）It is described to be arranged at
Second end face（7）On multiple 3rd locking ratchets, the 3rd locking ratchet and the derotation screw thread（22）Rotation direction it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720528692.6U CN206770372U (en) | 2017-05-12 | 2017-05-12 | Check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720528692.6U CN206770372U (en) | 2017-05-12 | 2017-05-12 | Check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206770372U true CN206770372U (en) | 2017-12-19 |
Family
ID=60649758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720528692.6U Expired - Fee Related CN206770372U (en) | 2017-05-12 | 2017-05-12 | Check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206770372U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691879A (en) * | 2018-06-10 | 2018-10-23 | 汪友根 | A kind of positive and negative silk tooth bolt structure |
| CN113074180A (en) * | 2021-02-19 | 2021-07-06 | 何天麟 | Split nut |
| CN113202233A (en) * | 2021-05-25 | 2021-08-03 | 四川公路桥梁建设集团有限公司 | Mechanical self-locking type connecting sleeve structure and construction method |
-
2017
- 2017-05-12 CN CN201720528692.6U patent/CN206770372U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691879A (en) * | 2018-06-10 | 2018-10-23 | 汪友根 | A kind of positive and negative silk tooth bolt structure |
| CN113074180A (en) * | 2021-02-19 | 2021-07-06 | 何天麟 | Split nut |
| CN113202233A (en) * | 2021-05-25 | 2021-08-03 | 四川公路桥梁建设集团有限公司 | Mechanical self-locking type connecting sleeve structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20180512 |