CN110145532A - A kind of locking combination nut - Google Patents
A kind of locking combination nut Download PDFInfo
- Publication number
- CN110145532A CN110145532A CN201910435030.8A CN201910435030A CN110145532A CN 110145532 A CN110145532 A CN 110145532A CN 201910435030 A CN201910435030 A CN 201910435030A CN 110145532 A CN110145532 A CN 110145532A
- Authority
- CN
- China
- Prior art keywords
- tail
- long
- nut
- checknut
- head
- 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.)
- Pending
Links
- 230000008602 contraction Effects 0.000 claims abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a kind of locking combination nuts, including main nut and secondary nut, the main nut includes head and long-tail, the head and long-tail have coaxial through-hole, fastening thread is provided in the through-hole on head, checknut is provided in the through-hole of long-tail, the long-tail is contraction type long-tail, the outer surface of the long-tail is inclined surface, diameter of the long-tail close to head side is big compared with the other side, the pair nut is threadedly engaged with long-tail, the present invention is when fastening article, combination nut can be on the basis of fixed article, squeezing with the screw thread two sides of bolt has biggish frictional force, it prevents from leading to relaxation because of vibration.
Description
Technical field
The invention belongs to fastener nut field, more specifically to a kind of locking combination nut.
Background technique
Nut is exactly nut, is threaded together the part for playing the role of fastening, all manufacturing machines with bolt or screw rod
Tool must a kind of element according to the difference of material, be divided into carbon steel, stainless steel, several big types of non-ferrous metal (such as copper).
Nut is the part for closely connecting mechanical equipment, passes through the screw thread of inside, equivalent specifications nuts and bolt
It can just link together.
In nut and bolt fastening article, bolt passes through article, and back nut is covered and gradually revolved on bolt along screw thread
Tightly, the diameter of thread of usual nut is slightly larger than the diameter of the screw thread of bolt, as shown in figure 3, article is located at left side, nut 2 is by the right side
Lateral left side precession, before nut 2 contacts article surface, nut easily can rotate and advance along bolt 1, at this time nut
The screw thread of 2 screw thread and bolt 1 is without obvious extruding force, after nut contacts article surface, as shown in figure 4, continuing rotating nuts
2, nut will be started tightly by the blocking of article and the effect of screw thread, the screw thread right side of nut with the right side of bolt 1 at this time
Paste and squeeze, with screwing for nut, the screw thread (thread) and the screw thread extruding force of bolt of nut are increasing, by the two it
Between biggish frictional force article is fixedly clamped by the cooperation of nuts and bolt with preventing nut from reversely rotating, but vibrating
In scene, if nut some rotate backward, the screw thread of nut will reduce with the thread pressure of bolt until lose pressure, lead
It causes nut free to rotate, the effect of fixed article can not be provided, nut is by Automatic-falling when that can not find in time.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides one kind when fastening to article, and combination nut can be in fixation
On the basis of article, squeezing with the screw thread two sides of bolt has biggish frictional force, prevents from leading to relaxation because of vibration
Locking combination nut.
To achieve the above object, the present invention provides the following technical scheme that a kind of locking combination nut, including main nut and
Secondary nut, the main nut include head and long-tail, and the head and long-tail have coaxial through-hole, setting in the through-hole on head
There is fastening thread, checknut is provided in the through-hole of long-tail, the long-tail is contraction type long-tail, and the outer surface of the long-tail is
Inclined surface, diameter of the long-tail close to head side is big compared with the other side, and the pair nut is threadedly engaged with long-tail.
Several shrinkage joints are offered on the further long-tail, the shrinkage joint is by far from one lateral head side of head
To extension.
The further checknut has several segments for discontinuous screw thread, corresponding to the length of every section of checknut
Central angle is less than 60 °, and the distance of adjacent two sections of checknuts is less than the screw pitch of fastening thread in axial direction.
The further checknut has several segments for discontinuous screw thread, corresponding to the length of every section of checknut
Central angle is less than 60 °, and the distance of adjacent two sections of checknuts is greater than the screw pitch of fastening thread in axial direction.
It is discontinuous screw thread that the further checknut, which has several segments, and the lift angle of every section of checknut is not equal to
The lift angle of fastening thread.
The further secondary nut is provided with rubber ring towards main nut side.
Compared with prior art, the beneficial effects of the present invention are: by setting contraction type long-tail, when cooperating with bolt,
When main nut is not in contact with article to be fixed, secondary nut is not installed or positioned at the end of long-tail, and main nut easily can be reached quickly
Before article, with contact article and after screwing, secondary nut gradually screws long-tail, and long-tail is compressed, and the checknut at long-tail is tight
It is pressed on the screw thread of bolt, further increases frictional resistance；In the screw pitch of checknut and the not equal screw pitch of fastening thread, tightly
Gu screw thread is bonded with the one face squeezed tight of screw thread of bolt, and then a part and the screw thread one side of bolt cooperate checknut, separately
The cooperation of the screw thread another side of a part of checknut and bolt；It is similarly different from fastening thread lift angle in the lift angle of checknut
When, every section of checknut can squeeze the screw thread two sides of bolt simultaneously, even if main nut has rotation sign vibrating,
It still keeps squeezed tight between long-tail and bolt, main nut is prevented further to unscrew, the locking state of holding that can be permanent.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the locking combination nut of the present invention；
Fig. 2 is the schematic diagram of the section structure of long-tail in the present invention；
Fig. 3 is when nut and bolt cooperate in the prior art without squeezed state schematic diagram；
Fig. 4 is mutual squeezed state schematic diagram when nut and bolt cooperate in the prior art.
Appended drawing reference: 3, main nut；31, head；32, long-tail；321, checknut；322, shrinkage joint；6, secondary nut；
61, rubber ring.
Specific embodiment
The embodiment of the locking combination nut of the present invention is described further referring to Figures 1 and 2.
A kind of locking combination nut, including main nut 3 and secondary nut 6, the main nut 3 include head 31 and long-tail 32,
The head 31 and long-tail 32 have coaxial through-hole, are provided with fastening thread in the through-hole on head 31, in the through-hole of long-tail 32
It is provided with checknut 321, the long-tail 32 is contraction type long-tail 32, and the outer surface of the long-tail 32 is inclined surface, long-tail 32
Diameter close to 31 side of head is big compared with the other side, and the pair nut 6 is threadedly engaged with long-tail 32.
Before main nut 3 contacts article to be tightened, secondary nut 6 is in the end of long-tail 32 or does not assemble, at this time long-tail 32
In the state of scattering, after main nut 3 contacts and squeezes article and fix, secondary nut 6 screws long-tail 32, with secondary nut 6 by
Gradually close to the head of main nut 3 31, long-tail 32 is gradually compressed, and the checknut 321 of long-tail 32 is pressed on the surface of bolt, this
When head 31 fastening thread and a side of bolt squeeze friction be provided, and checknut 321 is directly embedded into the spiral shell of bolt
Among line, i.e., checknut 321 is contacted with the screw thread two sides of bolt and root, even if relaxation occurs for main nut 3, fastens spiral shell
Pressure reduces between line and bolt, and checknut 321 is still capable of providing certain pressure and main nut 3 is prevented to continue to loosen
(rotation).
The present embodiment preferably offers several shrinkage joints 322 on the long-tail 32, and the shrinkage joint 322 is by far from head
31 1 lateral head of portion, 31 direction extends, and the setting of shrinkage joint 322 enables long-tail 32 smoothly to shrink and open.
As shown in figure 3, preferably the checknut 321 has several segments for discontinuous screw thread to the present embodiment, every section anti-
Central angle corresponding to the length of loose screw thread 321 is less than 60 °, and the distance of adjacent two sections of checknuts 321 is less than fastening in axial direction
The screw pitch of screw thread, and the sum of central angle corresponding to all checknuts 321 on preferred any one circle is not more than 130 °.
Or the checknut 321 has several segments for discontinuous screw thread, corresponding to the length of every section of checknut 321
Central angle is less than 60 °, and the distance of adjacent two sections of checknuts 321 is greater than the screw pitch of fastening thread in axial direction.
After main nut 3 and the good article of bolt fastening, secondary nut 6 is tightened on long-tail 32, and every section of checknut 321 will
It is squeezed among the screw thread of bolt as possible, then the screw pitch due to checknut 321 is not equal to the screw pitch of fastening thread, and fastens spiral shell
The screw pitch of line is identical with the screw pitch of screw thread on bolt, then when checknut 321 is by among the screw thread for squeezing into bolt as possible,
A face contact squeeze of screw thread on part checknut 321 and bolt, another part checknut 321 will be with screw thread on bolt
Another side contact squeeze；Discontinuous screw thread guarantees that every section is loosened screw thread and can squeeze among the screw thread of bolt.
Checknut 321 can also be following form, and the screw thread that loosens has several segments for discontinuous screw thread, and every section locking
The lift angle of screw thread 321 is not equal to the lift angle of fastening thread.
In this case, every section of checknut 321 can carry out contact squeeze with the two sides of screw thread on bolt simultaneously.
On the two sides of loosening screw thread and bolt thread when equal contact squeeze, rotate if vibration main nut 3 occurs, long-tail
Checknut 321 on 32 still keeps the screw thread of original state and bolt to squeeze, and main nut 3 is made still to be difficult to rotate, and can avoid master
Nut 3 and bolt, which occur to loosen, is even freely rotated state without extruding.
The preferred secondary nut 6 of the present embodiment is provided with rubber ring 61 towards 3 side of main nut, and rubber ring can prevent pair
Loosened between nut and main nut, and rubber ring be set as an annular groove is set on secondary nut, rubber ring is put into
, can be replaced when aging occurs for rubber ring.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of locking combination nut, it is characterised in that: including main nut and secondary nut, the main nut includes head and length
Tail, the head and long-tail have coaxial through-hole, are provided with fastening thread in the through-hole on head, are provided in the through-hole of long-tail
Checknut, the long-tail are contraction type long-tail, and the outer surface of the long-tail is inclined surface, diameter of the long-tail close to head side
Big compared with the other side, the pair nut is threadedly engaged with long-tail.
2. locking combination nut according to claim 1, it is characterised in that: offer several contractions on the long-tail
Seam, the shrinkage joint far from one side of head to cephalad direction from extending.
3. locking combination nut according to claim 2, it is characterised in that: it is interruption that the checknut, which has several segments,
Formula screw thread, central angle corresponding to the length of every section of checknut is less than 60 °, and the distance of adjacent two sections of checknuts is small in axial direction
In the screw pitch of fastening thread.
4. locking combination nut according to claim 2, it is characterised in that: it is interruption that the checknut, which has several segments,
Formula screw thread, central angle corresponding to the length of every section of checknut is less than 60 °, and the distance of adjacent two sections of checknuts is big in axial direction
In the screw pitch of fastening thread.
5. locking combination nut according to claim 2, it is characterised in that: it is interruption that the checknut, which has several segments,
Formula screw thread, the lift angle of every section of checknut are not equal to the lift angle of fastening thread.
6. locking combination nut according to claim 2, it is characterised in that: the pair nut is arranged towards main nut side
There is rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910435030.8A CN110145532A (en) | 2019-05-23 | 2019-05-23 | A kind of locking combination nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910435030.8A CN110145532A (en) | 2019-05-23 | 2019-05-23 | A kind of locking combination nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145532A true CN110145532A (en) | 2019-08-20 |
Family
ID=67592988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910435030.8A Pending CN110145532A (en) | 2019-05-23 | 2019-05-23 | A kind of locking combination nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145532A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB617597A (en) * | 1944-07-28 | 1949-02-09 | Chester Dudley Tripp | Lock nut and method and apparatus for making same |
| US4293262A (en) * | 1979-06-08 | 1981-10-06 | Holmes Horace D | Reusable prevailing torque nut |
| DE3812720A1 (en) * | 1988-04-16 | 1989-10-26 | Wayss & Freytag Ag | Thread for self-bracing screw-connection |
| JPH01165813U (en) * | 1988-05-16 | 1989-11-20 | ||
| GB2282202A (en) * | 1993-09-28 | 1995-03-29 | Chiang Chih Chung | Lock nut capable of engaging resiliently another nut |
| US20100247266A1 (en) * | 2009-03-25 | 2010-09-30 | Tadeusz Staniszewski | Self-locking nut |
| CN202612330U (en) * | 2012-04-06 | 2012-12-19 | 天纳克同泰（大连）排气系统有限公司 | Locking nut applied in automobile exhaust system |
| CN103277386A (en) * | 2013-06-27 | 2013-09-04 | 余成鹏 | Convenient and stable thread structure |
| CN203585034U (en) * | 2013-12-09 | 2014-05-07 | 上海格姆特紧固技术有限公司 | Transverse double-cutting-groove nut |
| CN203756706U (en) * | 2013-12-26 | 2014-08-06 | 上海底特精密紧固件股份有限公司 | Controllable-pressure type locking combined nut |
| CN107740807A (en) * | 2017-11-29 | 2018-02-27 | 忻建国 | A kind of combination stop nut locked using tapered thread |
| CN207064441U (en) * | 2017-06-28 | 2018-03-02 | 昆明理工大学 | A kind of anti-loose lock nut |
-
2019
- 2019-05-23 CN CN201910435030.8A patent/CN110145532A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB617597A (en) * | 1944-07-28 | 1949-02-09 | Chester Dudley Tripp | Lock nut and method and apparatus for making same |
| US4293262A (en) * | 1979-06-08 | 1981-10-06 | Holmes Horace D | Reusable prevailing torque nut |
| DE3812720A1 (en) * | 1988-04-16 | 1989-10-26 | Wayss & Freytag Ag | Thread for self-bracing screw-connection |
| JPH01165813U (en) * | 1988-05-16 | 1989-11-20 | ||
| GB2282202A (en) * | 1993-09-28 | 1995-03-29 | Chiang Chih Chung | Lock nut capable of engaging resiliently another nut |
| US20100247266A1 (en) * | 2009-03-25 | 2010-09-30 | Tadeusz Staniszewski | Self-locking nut |
| CN202612330U (en) * | 2012-04-06 | 2012-12-19 | 天纳克同泰（大连）排气系统有限公司 | Locking nut applied in automobile exhaust system |
| CN103277386A (en) * | 2013-06-27 | 2013-09-04 | 余成鹏 | Convenient and stable thread structure |
| CN203585034U (en) * | 2013-12-09 | 2014-05-07 | 上海格姆特紧固技术有限公司 | Transverse double-cutting-groove nut |
| CN203756706U (en) * | 2013-12-26 | 2014-08-06 | 上海底特精密紧固件股份有限公司 | Controllable-pressure type locking combined nut |
| CN207064441U (en) * | 2017-06-28 | 2018-03-02 | 昆明理工大学 | A kind of anti-loose lock nut |
| CN107740807A (en) * | 2017-11-29 | 2018-02-27 | 忻建国 | A kind of combination stop nut locked using tapered thread |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190820 |
|
| RJ01 | Rejection of invention patent application after publication |