CN209414368U - Subassembly of lock bolt - Google Patents
Subassembly of lock bolt Download PDFInfo
- Publication number
- CN209414368U CN209414368U CN201821842895.3U CN201821842895U CN209414368U CN 209414368 U CN209414368 U CN 209414368U CN 201821842895 U CN201821842895 U CN 201821842895U CN 209414368 U CN209414368 U CN 209414368U
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- China
- Prior art keywords
- screw thread
- derotation
- nut
- dextrorotation
- bolt
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Abstract
The utility model relates to bolt fastening technical field more particularly to a kind of subassembly of lock bolt.Including check bolt, lower nuts and upper nut, lower nuts and upper nut are sequentially arranged on check bolt, in the upper half of polished rod, successively staggered dextrorotation screw thread and derotation screw thread are set, the axis of dextrorotation screw thread and derotation screw thread all deviates the axis of polished rod, and is centrosymmetric with the axis of polished rod.It is more preferable compared to traditional double nut fastening effect by the way that oppositely oriented positive spin nut and derotation nut are arranged on bolt.Positive spin nut and derotation nut are fixed again by being threadedly engaged, can produce self-locking effect, further enhances fastening effect, and does not need very big fastening force, reduces the internal stress and damage of bolt.It is risen as high as the banks by being arranged between the dextrorotation that bolt intersects and derotation screw thread, in order to the loosening of upper and lower nut is prevented, so that installation process is more smooth.
Description
Technical field
The utility model relates to bolt fastening technical field more particularly to a kind of subassembly of lock bolt.
Background technique
Since the screw use of 16th century, bolt and nut component is widely used in life and industrial circle, however uses
Several centuries, bolt and nut component is still fastened by the mode for increasing pretightning force, is not had in the fastening means of bolt
It is greatly improved, when fastening force is excessive, be easy to cause bolt fracture problem.Sometimes through increase spring shim or increase
The mode of more nuts is fastened, when this kind of fastening means still need biggish pretightning force, over time can also exist pine
Dynamic problem.
Utility model content
To solve the above-mentioned problems and and propose a kind of subassembly of lock bolt.
A kind of subassembly of lock bolt, including check bolt, lower nuts and upper nut, lower nuts and upper nut according to
It is secondary to be mounted on check bolt, its main feature is that, the check bolt includes polished rod, and in the upper half of polished rod, setting successively interlocks
Dextrorotation screw thread and derotation screw thread, the axis of dextrorotation screw thread and derotation screw thread all deviates the axis of polished rod.
Preferably, the axis of the dextrorotation screw thread and the axis of derotation screw thread are centrosymmetric with the axis of polished rod.
Preferably, the handover zone position of the dextrorotation screw thread and derotation screw thread setting side wall is risen as high as the banks.
Preferably, the lower nuts include polyhedron and the cylinder that is vertically fixed on one transverse plane of polyhedron, multi-panel
Body and cylinder integration production, at polyhedron center, the circular hole of setting forms first through hole, first through hole together with cylinder inner hole
Dextrorotation internal screw thread is arranged in inner wall.
Preferably, the internal screw thread of the upper nut is derotation threaded hole.
Preferably, the lower nuts include polyhedron and the cylinder that is vertically fixed on one transverse plane of polyhedron, multi-panel
Body and cylinder integration production, at polyhedron center, the circular hole of setting forms first through hole, first through hole together with cylinder inner hole
Derotation threaded hole is arranged in inner wall.
Preferably, the internal screw thread of the upper nut is positive medial rotation screw thread.
Preferably, the second external screw thread is set on the outer wall of the cylinder, it is heavy in the end face center setting of upper nut
Hole, second internal screw thread of the setting for cooperating with the second external screw thread on counterbore inner wall, the second external screw thread and the second internal screw thread
Rotation direction is the same, can simultaneously be dextrorotation or derotation.
Preferably, end-beveling is set between the end face outside and outer circle of the cylinder, is connected in counterbore with first through hole
Interior transitional slope face is arranged in place.
The beneficial effects of the utility model are: the utility model relates to a kind of subassembly of lock bolt, by bolt
Oppositely oriented positive spin nut and derotation nut are set, it is more preferable compared to traditional double nut fastening effect.By being threadedly engaged dextrorotation
Nut and derotation nut are fixed again, can produce self-locking effect, further enhance fastening effect, and do not need very big fastening
Power reduces the internal stress and damage of bolt.It is risen as high as the banks by being arranged between the dextrorotation that bolt intersects and derotation screw thread, in order to
The loosening of upper and lower nut is prevented, so that installation process is more smooth.
Detailed description of the invention
Fig. 1 is the locking double bolt assembly structure oblique views of the utility model.
Fig. 2 is the locking double bolt assembly structural exploded views of the utility model.
Fig. 3 is the locking double bolt assembly structural front views of the utility model.
Fig. 4 is the A-A view of Fig. 3.
Fig. 5 is the utility model check bolt structure oblique view.
Fig. 6 is the utility model check bolt structural front view.
Fig. 7 is the utility model outer nut structure oblique view.
Fig. 8 is the utility model inner nut structure oblique view.
Fig. 9 is the E-E view of Fig. 4.
Wherein: 1- check bolt；2- lower nuts；3- upper nut；11- polished rod；12- dextrorotation screw thread；13- derotation spiral shell
Line；14- side wall is risen as high as the banks；15- cross-connecting area；21- polyhedron；22- cylinder；23- dextrorotation internal screw thread；The second external screw thread of 24-；The end 25-
Portion's chamfering；31- derotation threaded hole；The second internal screw thread of 32-；Transitional slope face in 33-.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
If Fig. 1 is the locking double bolt assembly structure oblique views of the utility model.Fig. 2 is the locking double bolt groups of the utility model
Part structural exploded view.Fig. 3 is the locking double bolt assembly structural front views of the utility model.Fig. 4 is the A-A view of Fig. 3.Fig. 9 is
The E-E view of Fig. 4.A kind of subassembly of lock bolt, including check bolt 1, lower nuts 2 and upper nut 3,2 He of lower nuts
Upper nut 3 is sequentially arranged on check bolt 1.The check bolt 1 includes polished rod 11, is arranged in the upper half of polished rod 11
The axis of successively staggered dextrorotation screw thread 12 and derotation screw thread 13, dextrorotation screw thread 12 and derotation screw thread 13 all deviates the axis of polished rod 11
Line.Interlaced dextrorotation screw thread 12 and derotation screw thread 13 be set on 11 top of polished rod, dextrorotation screw thread 12 and derotation screw thread 13
Length accounts for a greater part of of 11 overall length of polished rod.Dextrorotation screw thread 12 and derotation screw thread 13 all include outer circle as general screw thread and interior
Circle, only the center of polished rod 11, therefore dextrorotation screw thread 12 and derotation spiral shell are all deviateed in the center of dextrorotation screw thread 12 and derotation screw thread 13
The outer round thread of 11 central side of separate polished rod of line 13 wants high, with outer round thread from far from 11 central side of polished rod gradually toward connecing
11 central side of dipped beam bar, the i.e. outer circle of dextrorotation screw thread 12 and derotation screw thread 13 have separate 11 center of polished rod to close in polished rod 11
The outer round surface of the heart, dextrorotation screw thread 12 and derotation screw thread 13 is gradually embedded to the inner circle table of derotation screw thread 13 and dextrorotation screw thread 12 respectively
Face.Therefore, when dextrorotation screw thread 12 and derotation screw thread 13 are installed with lower nuts 2 and the engagement of upper nut 3 respectively, dextrorotation screw thread
12 telecentricity outer circle and the telecentricity outer circle of derotation screw thread 13 are respectively acting on lower nuts 2 and upper nut 3, and dextrorotation screw thread 12
Nearly heart outer circle and the nearly heart outer circle of derotation screw thread 13 be embedded in the inner circle of derotation screw thread 13 and the inner circle of dextrorotation screw thread 12 respectively,
Dextrorotation screw thread 12 and derotation screw thread 13 will not interfere with each other.The axis of the dextrorotation screw thread 12 and the axis of derotation screw thread 13 are with light
The axis of bar 11 is centrosymmetric.Lower nuts 2 and upper nut 3 are being installed respectively by dextrorotation screw thread 12 and derotation screw thread 13
When, lower nuts 2 and upper nut also corresponding bias.
If Fig. 5 is the utility model check bolt structure oblique view.Fig. 6 is the utility model check bolt structure main view
Figure.15 position of cross-connecting area of the dextrorotation screw thread 12 and derotation screw thread 13 setting side wall rises as high as the banks 14.Because of dextrorotation screw thread 12 and anti-
It revolves the respective outer circle of screw thread 13 and inner circle is all concentric, therefore the outer circle junction and dextrorotation spiral shell of dextrorotation screw thread 12 and derotation screw thread 13
The inner circle junction position of line 12 and derotation screw thread 13 is essentially identical.It is formed about in outer circle junction and inner circle junction position
Cross-connecting area 15.The feelings that the axis of axis and derotation screw thread 13 for dextrorotation screw thread 12 is centrosymmetric with the axis of polished rod 11
Condition, cross-connecting area 15 exist simultaneously dextrorotation screw thread 12 and derotation screw thread 13, and 13 height of dextrorotation screw thread 12 and derotation screw thread herein
It is all consistent.When installing lower nuts 2 and upper nut 3 respectively on the axis and derotation screw thread 13 of dextrorotation screw thread 12, dextrorotation spiral shell
Line 12 and derotation screw thread 13 may all influence lower nuts 2 and upper nut 3 simultaneously, be easy to cause installation lower nuts at this time
2 and when upper nut 3, it is stuck and twist motionless trouble.By rising as high as the banks 14 cross-connecting area 15 is scabbled into side wall, friendship can remove
It connects and exists simultaneously dextrorotation screw thread 12 and derotation screw thread 13 in area 15, avoid there is interference with lower nuts 2 and upper nut 3, make
At stuck problem, so that stubborn lower nuts 2 and upper nut 3 are easier.
If Fig. 7 is the utility model outer nut structure oblique view.Fig. 8 is the utility model inner nut structure oblique view.Under
Portion's nut 2 includes polyhedron 21 and the cylinder 22 being vertically fixed on 21 1 transverse plane of polyhedron, polyhedron 21 and cylinder 22 1
Bodyization production, at 21 center of polyhedron, the circular hole of setting forms first through hole together with 22 inner hole of cylinder, and first through hole inner wall is set
Dextrorotation internal screw thread 23 is set, the internal screw thread of upper nut 3 is derotation threaded hole 31.Alternatively, derotation screw thread is arranged in first through hole inner wall
Hole 31, the internal screw thread of upper nut 3 are positive medial rotation screw thread 23.Wherein polyhedron 21 is the rhombus column of mark, can be four side water chestnuts
Shape column, six while rhombus column perhaps eight while the upper surface that is fixed on rhombus column of rhombus column cylinder 22 center or lower end surface in
The heart.Dextrorotation internal screw thread 23, derotation threaded hole 31 or lower part is respectively set in lower nuts 2, upper nut 3 in this patent
Derotation threaded hole 31, dextrorotation internal screw thread 23 are respectively set on nut 2, upper nut 3.Divided by lower nuts 2, upper nut 3
Do not connect with dextrorotation screw thread 12, derotation screw thread 13 or lower nuts 2, upper nut 3 respectively with derotation screw thread 13, dextrorotation spiral shell
Line 12 connects.To need to reversely rotate upper nut 3 and lower nuts 2 respectively, locking spiral shell could be tightened or loosened simultaneously
Bolt 1.In actual use, often due to mechanical oscillation cause naturally to loosen, generally using spring pad between screw bolt and nut
The fixed form of circle and double nut, but the fixation of this kind of mode does not account for the basic reason of screw bolt and nut loosening, that is, adopts
It is fixed with spring washer and double nut, in fastening by very big fastening force, sometimes even by bolt abruption.In practical bolt
Sometime putting all be a vibration direction when vibration, common double nut is mounted on bolt, rotation direction be also it is identical, work as shake
When dynamic direction is identical as the rotation direction of nut, the nut of two identical rotation directions can loosen simultaneously.And the check bolt 1 in this patent is adopted
With oppositely oriented double thread, the rotation direction of the lower nuts 2, upper nut 3 that are engaged is also on the contrary, when the past pine of a nut
When direction is shaken, another nut can shake toward tight direction, and because the case where double nut all loosens without caused by, therefore this is specially
The check bolt 1 of benefit can play preferably fastening anti-loosing effect with the cooperation of lower nuts 2, upper nut 3 respectively.
Second external screw thread 24 is set on the outer wall of cylinder 22, counterbore is set in an end face center of upper nut 3, in counterbore
Setting is for the second internal screw thread 32 with the cooperation of the second external screw thread 24, the rotation of the second external screw thread 24 and the second internal screw thread 32 on inner wall
It can simultaneously be dextrorotation or derotation to the same.By the way that counterbore and the second internal screw thread 32 are arranged in upper nut 3, in lower part
Second external screw thread 24, the second internal screw thread 32 and the intermeshing of the second external screw thread 24 are set on the outer wall of the cylinder 22 of nut 2, so that
Lower nuts 2 are fixedly connected with upper nut 3, when lower nuts 2 and upper nut 3 connect into an assembly, and lower part
Again respectively with check bolt 1 with the threaded connection of opposite rotation direction, external vibration can only generate simultaneously for nut 2 and upper nut 3
In a direction, therefore the connection between lower nuts 2 and the assembly connected into of upper nut 3 and check bolt 1 is stronger.
When in use, first lower nuts 2 can be screwed on check bolt 1, upper nut 3 is reversely then screwed to check bolt 1
On.End-beveling 25 is set between the end face outside and outer circle of cylinder 22, the transition in counterbore and first through hole junction are arranged
Inclined surface 33.By the way that end-beveling 25 is arranged on the end face of 22 outer circle of cylinder, in counterbore and the setting of first through hole junction
Transitional slope face 33 passes through end-beveling 25 and interior transitional slope face 33 when upper nut 3 to be screwed in lower nuts 2
Cooperation so that upper nut 3 and lower nuts 2 cooperate it is closer.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and
Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model is answered
It is defined by the claims.
Claims (7)
1. a kind of subassembly of lock bolt, including check bolt (1), lower nuts (2) and upper nut (3), lower nuts (2) and
Upper nut (3) is sequentially arranged on check bolt (1), it is characterised in that: and the check bolt (1) includes polished rod (11),
In the upper half of polished rod (11), successively staggered dextrorotation screw thread (12) and derotation screw thread (13), dextrorotation screw thread (12) and derotation are set
The axis of screw thread (13) all deviates the axis of polished rod (11)；The axis of the dextrorotation screw thread (12) and the axis of derotation screw thread (13)
It is centrosymmetric with the axis of polished rod (11)；The setting of cross-connecting area (15) position of the dextrorotation screw thread (12) and derotation screw thread (13)
Side wall rises as high as the banks (14).
2. subassembly of lock bolt according to claim 1, it is characterised in that: the lower nuts (2) include polyhedron
(21) and the cylinder (22) that is vertically fixed on (21) one transverse plane of polyhedron, polyhedron (21) and cylinder (22) integration system
Make, at polyhedron (21) center, the circular hole of setting forms first through hole, the setting of first through hole inner wall together with cylinder (22) inner hole
Dextrorotation internal screw thread (23).
3. subassembly of lock bolt according to claim 2, it is characterised in that: the internal screw thread of the upper nut (3) is
Derotation threaded hole (31).
4. subassembly of lock bolt according to claim 1, it is characterised in that: the lower nuts (2) include polyhedron
(21) and the cylinder (22) that is vertically fixed on (21) one transverse plane of polyhedron, polyhedron (21) and cylinder (22) integration system
Make, at polyhedron (21) center, the circular hole of setting forms first through hole, the setting of first through hole inner wall together with cylinder (22) inner hole
Derotation threaded hole (31).
5. subassembly of lock bolt according to claim 4, it is characterised in that: the internal screw thread of the upper nut (3) is
Dextrorotation internal screw thread (23).
6. the subassembly of lock bolt according to claim 3 or 5, it is characterised in that: set on the outer wall of the cylinder (22)
The second external screw thread (24) are set, counterbore are set in an end face center of upper nut (3), setting is used for and second on counterbore inner wall
The second internal screw thread (32) of external screw thread (24) cooperation, the second external screw thread (24), can be with as the rotation direction of the second internal screw thread (32)
It is simultaneously dextrorotation or derotation.
7. subassembly of lock bolt according to claim 6, it is characterised in that: the end face outside and outer circle of the cylinder (22)
Between end-beveling (25) are set, the transitional slope face (33) in counterbore and first through hole junction are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842895.3U CN209414368U (en) | 2018-11-09 | 2018-11-09 | Subassembly of lock bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842895.3U CN209414368U (en) | 2018-11-09 | 2018-11-09 | Subassembly of lock bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209414368U true CN209414368U (en) | 2019-09-20 |
Family
ID=67933523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821842895.3U Expired - Fee Related CN209414368U (en) | 2018-11-09 | 2018-11-09 | Subassembly of lock bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209414368U (en) |
-
2018
- 2018-11-09 CN CN201821842895.3U patent/CN209414368U/en not_active Expired - Fee Related
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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: 20190920 Termination date: 20201109 |