CN109989988A - Jam nut - Google Patents
Jam nut Download PDFInfo
- Publication number
- CN109989988A CN109989988A CN201910344778.7A CN201910344778A CN109989988A CN 109989988 A CN109989988 A CN 109989988A CN 201910344778 A CN201910344778 A CN 201910344778A CN 109989988 A CN109989988 A CN 109989988A
- Authority
- CN
- China
- Prior art keywords
- notch
- nut
- abutting portion
- bolt
- slot
- 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.)
- Granted
Links
- 239000007787 solid Substances 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 11
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- 238000007373 indentation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
-
- 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
- F16B37/00—Nuts or like thread-engaging members
-
- 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
- F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention provides a kind of jam nuts, belong to connection and tightening technology field, including bolt, nut, plug connector, and the bolt end is equipped with notch, and the notch extends along the length direction of bolt and the two sides of in-and-out bolt；Plug connector for being axially inserted into the notch along bolt and rotary spacing is in notch, the plug connector from the exposed division of notch be the first abutting portion；For nut for connecting with the bolt thread, the nut is equipped with the second abutting portion for being clamped limitation nut rotation with the first abutting portion.Jam nut provided by the invention, the self-lock ability for solving existing bolt and nut connection type is lower, it occur frequently that the problem of loosening.
Description
Technical field
It with tightening technology field is more specifically to be related to a kind of jam nut the invention belongs to connect.
Background technique
It is high to be threadedly coupled standardization level, is easy to dismount, manufacture, and adapt to various operating conditions, therefore extensive
Using.But prolonged use is passed through in the threaded connection of bolt, nut, because the various factors such as friction, vibration, temperature obtain shadow
Sound can usually generate loosening, and the loosening of bolt, nut may will affect the operation of equipment, or even cause danger.
Summary of the invention
The purpose of the present invention is to provide a kind of jam nuts, it is intended to solve the self-locking energy of existing bolt and nut connection type
Power is lower, it occur frequently that the problem of loosening.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of jam nut is provided, comprising:
Bolt, the bolt end be equipped with notch, the notch along bolt length direction extend and in-and-out bolt two
Side；
Plug connector, for being axially inserted into the notch along bolt and rotary spacing is in notch, the plug connector from
The exposed division of notch is the first abutting portion；
Nut, for connecting with the bolt thread, the nut is equipped with for being clamped limitation spiral shell with the first abutting portion
Second abutting portion of mother's rotation.
Further, first abutting portion is entity bar or solid block, and second abutting portion is equipped with for being clamped
State the slot or notch of entity bar or solid block.
Further, the second abutting portion is entity bar or solid block, and first abutting portion is equipped with for being clamped the reality
The slot or notch of body rod or solid block.
Further, the plug connector is the shank that length is greater than the diameter of bolt, and first abutting portion is from described
The both ends for the shank that notch exposes, the both ends of the shank are additionally provided with baffle.
Further, second abutting portion is to be evenly equipped with multiple hooks along the nut circumference direction, and the hook is set
There are the slot or notch.
Further, second abutting portion is that multiple hooks are evenly equipped with along the nut circumference direction, adjacent two
The slot or notch are formed between hook, multiple slots or notch are L-shaped.
Further, second abutting portion is the bar on the nut.
Further, first abutting portion is cyclic annular and is circumferentially equipped with multiple hooks, and the hook is equipped with institute
State slot or notch.
Further, first abutting portion is cyclic annular and is circumferentially equipped with multiple hooks, two adjacent hooks
Between form the slot or notch, multiple slots or notch are L-shaped.
Further, the slot or indentation, there are equipped with position-limit mechanism, and the position-limit mechanism includes:
Limiting slot, on the side wall of the slot or notch；
Spring is set in the limiting slot；
Positioning pin, sliding sleeve are set in limiting slot and are exposed by means of spring from the side-walls, and the positioning pin passes through
Expose the closed end that the both ends of shank are limited in slot or notch by section.
The beneficial effect of jam nut provided by the invention is: compared with prior art, jam nut of the present invention is in spiral shell
Notch is set on bolt, the second abutting portion is set on nut and adds the plug connector mating with notch, is limited by notch
The plug connector rotation, and be clamped by means of the first abutting portion that the plug connector exposes notch with the second abutting portion and limit nut
Relative to the rotation of bolt, the self-lock ability of the connection type of bolt and nut is effectively increased, thread looseness is prevented.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of jam nut provided in an embodiment of the present invention；
Fig. 2 for Fig. 1 embodiment provide in nut structure diagram；
Fig. 3 for Fig. 1 embodiment provide in connector structure schematic diagram；
Fig. 4 be another embodiment of the present invention provides jam nut structural schematic diagram；
Fig. 5 for Fig. 4 embodiment provide in nut structure diagram；
Fig. 6 for Fig. 4 embodiment provide in connector structure schematic diagram；
Fig. 7 is the structural schematic diagram for the jam nut with limited position mechanism that Fig. 1 embodiment provides；
Fig. 8 is the nut and position-limit mechanism attachment structure schematic diagram that Fig. 1 applies the jam nut that example provides；
Fig. 9 is the A-A cross-sectional view of Fig. 8；
Figure 10 is the B partial enlarged view of Fig. 9.
In figure: 1, bolt；2, nut；3, shank；4, baffle；5, it links up with；6, positioning pin；7, spring；8, bar.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Also referring to Fig. 1 and Fig. 4, now jam nut provided by the invention is illustrated.The jam nut includes
Bolt 1, plug connector, nut 2,1 end of bolt are equipped with notch, and the notch extends and penetrates through along the length direction of bolt 1
The two sides of bolt 1；Plug connector along bolt 1 for being axially inserted into the notch and rotary spacing is in notch, the grafting
Part from the exposed division of notch be the first abutting portion；For being threadedly coupled with the bolt 1, the nut 2 is equipped with and is used for nut 2
The second abutting portion that limitation nut 2 rotates is clamped with the first abutting portion.The second abutting portion on the nut 2 is supported with described first
Contact portion clamping, and with the first abutting portion plug connector because being plugged in rotary spacing in 1 notch of bolt, to realize bolt
1 is self-locking with nut 2.
Notch is arranged on bolt 1, is arranged on nut 2 the compared with prior art for jam nut provided by the invention
The plug connector mating with notch is simultaneously added in two abutting portions, limits the plug connector by notch and rotates, and by means of described
Plug connector exposes the first abutting portion of notch and the clamping of the second abutting portion limits nut 2 relative to the rotation of bolt 1, effectively increases
The self-lock ability of the connection type of bolt and nut, prevents thread looseness.
As a kind of specific embodiment of jam nut provided in an embodiment of the present invention, referring to Fig. 1, described first supports
Contact portion is entity bar or solid block, and second abutting portion is equipped with slot or notch for being clamped the entity bar or solid block.
As another embodiment of the present invention provides a kind of specific embodiment of jam nut, referring to Fig. 4, second contradict
Portion is entity bar or solid block, and first abutting portion is equipped with slot or notch for being clamped the entity bar or solid block.
As a kind of specific embodiment of jam nut provided in an embodiment of the present invention, referring to Fig. 3, the plug connector
It is greater than the shank 3 of 1 diameter of bolt for length, first abutting portion is the two of the shank 3 exposed from the notch
End, the both ends of the shank 3 are additionally provided with baffle 4.The plug connector is plugged in 1 notch of bolt by shank 3, in grafting
Baffle 4 is arranged in 3 both ends of bar, and structure is simple, facilitates manufacture, at low cost, while can expose in 3 both ends of shank setting baffle 4
The shank 3 of notch and the second abutting portion effectively prevent shank 3 along own central axis line direction play when being clamped, so that structure
It is more stable.
A kind of specific embodiment as jam nut provided in an embodiment of the present invention is referring to Fig. 2, described second supports
Contact portion is that multiple hooks 5 are evenly equipped with along 2 circumferencial direction of nut, and the hook 5 is equipped with the slot or notch.Multiple hooks 5
It is circumferentially disposed at 2 edge of nut
A kind of specific embodiment as jam nut provided in an embodiment of the present invention is referring to Fig. 2, described second supports
Contact portion is that multiple hooks 5 are evenly equipped with along 2 circumferencial direction of nut, forms the slot or notch between two adjacent hooks 5,
The slot or notch are L-shaped.Hook 5 is L shape, by forming L-shaped slot or notch along 2 circumferencial direction arranged for interval of nut.
In the present embodiment, referring to Fig. 1, L-shaped hook 5 is circumferentially square if nut 2 is when rotating clockwise loosening
To clockwise towards placement；If nut 2 is when rotating counterclockwise loosening, L-shaped hook 5 along the circumferential direction direction counterclockwise
It places.When nut 2 is tightened to appropriate location, because 5 arranged for interval of hook form L-shaped slot, plug connector is opened wide along L-shaped slot
End enter L-shaped slot in, after by nut 2 with respect to bolt 1 slightly loosen rotate so that the closing of plug connector and L-shaped slot terminates
Touching, when nut 2 is loosened and rotated, plug connector can squeeze L-shaped groove closed end and namely link up with 5 inner walls, to stop nut 2 opposite
Bolt 1 loosens rotation.
As another embodiment of the present invention provides jam nut a kind of specific embodiment, please refer to Fig. 4 and Fig. 5,
Second abutting portion is the bar 8 on the nut 2.The bar 8 is symmetrically disposed on 2 two sides of nut.
As another embodiment of the present invention provides jam nut a kind of specific embodiment, referring to Fig. 6, described
One abutting portion is cyclic annular and is circumferentially equipped with multiple hooks 5, and the hook 5 is equipped with the slot or notch.Described first supports
Touching moves installation along the bolt 1 for the cyclic annular convenient plug connector contradicted with described first.
As another embodiment of the present invention provides jam nut a kind of specific embodiment, referring to Fig. 6, described
One abutting portion is cyclic annular and is circumferentially equipped with multiple hooks 5, forms the slot or notch between two adjacent hooks 5,
Multiple slots or notch are L-shaped.It is equipped with annular plate in the plug connector, is equipped with crossbeam, the annular plate in annular plate inner hole
Lower section and circumferentially be equipped with it is multiple hook 5.Hook 5 is L shape, L-shaped by being formed along 2 circumferencial direction arranged for interval of nut
Slot or notch.The crossbeam of the plug connector is plugged in the notch of the bolt 1, the two halves of the bolt 1 separated by notch
From crossbeam two sides, semicircle inner hole is pierced by respectively.
In the present embodiment, referring to Fig. 4, L-shaped hook 5 is circumferentially square if nut 2 is when rotating clockwise loosening
To counterclockwise towards placement；If nut 2 is when rotating counterclockwise loosening, L-shaped hook 5 along the circumferential direction direction clockwise
It places.When nut 2 is tightened to appropriate location, plug connector is inserted by means of crossbeam along 1 notch of bolt, plug connector is equipped with institute
The first abutting portion is stated, because 5 arranged for interval of hook form L-shaped slot, nut 2 is equipped with bar 8, bar 8 for first abutting portion
Open end along L-shaped slot enters in L-shaped slot, after nut 2 slightly loosened into rotation relative to bolt 1 so that bar 8 and L shape
Slot closing end in contact, nut 2 loosen rotate when, 5 inner walls are namely linked up in the closed end that bar 8 can squeeze L-shaped slot,
It is rotated to stop nut 2 to loosen relative to bolt 1.
As a kind of specific embodiment of jam nut provided in an embodiment of the present invention, Fig. 7 to Figure 10 is please referred to, it is described
Slot or indentation, there are equipped with position-limit mechanism, and the position-limit mechanism includes limiting slot, positioning pin 6, spring 7, and limiting slot is set to the slot
Or on the side wall of notch；Spring 7 is set in the limiting slot；6 sliding sleeve of positioning pin be set to limiting slot in and by means of spring 7 from
The side-walls are exposed, and the both ends of shank 3 are limited in the closed end of slot or notch by exposing section by the positioning pin 6.Bullet
7 one end of spring connects limiting slot, and the other end connects positioning pin 6.Spring 7 in its natural state, the side of slot described in positioning pin 6 or notch
Expose on wall.When first, which contradicts, is equipped with slot or notch, the position-limit mechanism is set on the first abutting portion；When the second conflict is equipped with
When slot or notch, the position-limit mechanism is set on the second abutting portion.
Fig. 7 to Figure 10 is please referred to, because the second abutting portion is equipped with slot, so position-limit mechanism is set to the second abutting portion
On the side wall of the slot of nut 2.When nut 2 is tightened to appropriate location, shank 3 along the notch of bolt 1 move into the slot or
The open end of notch will push 6 nut 2 of positioning pin on the side wall of the slot or notch to be retracted in limiting slot；It is backward to loosen
Direction fine rotation nut 2, shank 3 enter the closing end in contact of slot or notch, and shank 3 no longer squeezes positioning pin 6 at this time,
Positioning pin 6 spring 7 effect under from the side wall expose, if at this time nut 2 want loosen rotation, shank 3 will with slot or lack
The closing end in contact of mouth, so that nut 2 be stopped to loosen rotation；If nut 2 is wanted to tighten rotation by complexing action power, grafting
Bar 3 is contacted with positioning pin 6, stops its rotation, thus also avoid shank 3 because nut 2 tighten rotation generate abjection risk,
It can be more effectively locking.When disassembled, it pushes positioning pin 6 to enter limiting slot manually, suitably tightens rotating nut 2, take out and insert
Fitting then can separate bolt 1 with nut 2.Such structure is simple and easy to disassemble.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. jam nut characterized by comprising
Bolt, the bolt end are equipped with notch, and the notch extends along the length direction of bolt and the two sides of in-and-out bolt；
Plug connector, for being axially inserted into the notch along bolt and rotary spacing is in notch, the plug connector is from notch
Exposed division be the first abutting portion；
Nut, for connecting with the bolt thread, the nut is equipped with to be turned for being clamped limitation nut with the first abutting portion
The second dynamic abutting portion.
2. jam nut as described in claim 1, which is characterized in that first abutting portion is entity bar or solid block, institute
The second abutting portion is stated equipped with the slot or notch for being clamped the entity bar or solid block.
3. jam nut as described in claim 1, which is characterized in that the second abutting portion is entity bar or solid block, described the
One abutting portion is equipped with slot or notch for being clamped the entity bar or solid block.
4. jam nut as claimed in claim 2, which is characterized in that the plug connector is the grafting that length is greater than the diameter of bolt
Bar, first abutting portion are the both ends of the shank exposed from the notch, and the both ends of the shank are additionally provided with gear
Plate.
5. jam nut as claimed in claim 4, which is characterized in that second abutting portion is along the nut circumference direction
Multiple hooks are evenly equipped with, the hook is equipped with the slot or notch.
6. jam nut as claimed in claim 4, which is characterized in that second abutting portion is along the nut circumference direction
Multiple hooks are evenly equipped with, form the slot or notch between two adjacent hooks, multiple slots or notch are L-shaped.
7. jam nut as claimed in claim 3, which is characterized in that second abutting portion is the gear on the nut
Bar.
8. jam nut as claimed in claim 7, which is characterized in that first abutting portion is cyclic annular and circumferentially sets
There are multiple hooks, the hook is equipped with the slot or notch.
9. jam nut as claimed in claim 7, which is characterized in that first abutting portion is cyclic annular and circumferentially sets
There are multiple hooks, forms the slot or notch between two adjacent hooks, multiple slots or notch are L-shaped.
10. jam nut as claimed in claim 6, which is characterized in that the slot or indentation, there are equipped with position-limit mechanism, the limit
Position mechanism include:
Limiting slot, on the side wall of the slot or notch；
Spring is set in the limiting slot；
Positioning pin, sliding sleeve are set in limiting slot and are exposed by means of spring from the side-walls, and the positioning pin passes through exposing
The both ends of shank are limited in the closed end of slot or notch by section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344778.7A CN109989988B (en) | 2019-04-26 | 2019-04-26 | Anti-loose screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344778.7A CN109989988B (en) | 2019-04-26 | 2019-04-26 | Anti-loose screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109989988A true CN109989988A (en) | 2019-07-09 |
| CN109989988B CN109989988B (en) | 2024-06-04 |
Family
ID=67135369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344778.7A Active CN109989988B (en) | 2019-04-26 | 2019-04-26 | Anti-loose screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989988B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526282A (en) * | 2022-01-20 | 2022-05-24 | 淄博天恒电气设备有限公司 | Never-loosening bolt pair |
| CN115387610A (en) * | 2022-09-20 | 2022-11-25 | 中建八局第一建设有限公司 | Connecting structure for ultrahigh formwork conversion construction and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990019896A (en) * | 1997-08-30 | 1999-03-25 | 양재신 | Loosening prevention structure of bolt and slotted nut |
| KR20030073767A (en) * | 2002-03-13 | 2003-09-19 | 한국항공우주산업 주식회사 | conclusion member to be bolt and nut |
| JP2005106263A (en) * | 2003-09-26 | 2005-04-21 | Sakamura Mach Co Ltd | Castle nut |
| CN202381495U (en) * | 2011-12-15 | 2012-08-15 | 株洲市高远电池有限公司 | Bolt-on connection locking device for lithium ion battery pack |
| CN206539582U (en) * | 2017-03-10 | 2017-10-03 | 瑞安市丰宇标准件有限公司 | A kind of nut |
| CN210118336U (en) * | 2019-04-26 | 2020-02-28 | 姜建业 | Anti-loosening screw |
-
2019
- 2019-04-26 CN CN201910344778.7A patent/CN109989988B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990019896A (en) * | 1997-08-30 | 1999-03-25 | 양재신 | Loosening prevention structure of bolt and slotted nut |
| KR20030073767A (en) * | 2002-03-13 | 2003-09-19 | 한국항공우주산업 주식회사 | conclusion member to be bolt and nut |
| JP2005106263A (en) * | 2003-09-26 | 2005-04-21 | Sakamura Mach Co Ltd | Castle nut |
| CN202381495U (en) * | 2011-12-15 | 2012-08-15 | 株洲市高远电池有限公司 | Bolt-on connection locking device for lithium ion battery pack |
| CN206539582U (en) * | 2017-03-10 | 2017-10-03 | 瑞安市丰宇标准件有限公司 | A kind of nut |
| CN210118336U (en) * | 2019-04-26 | 2020-02-28 | 姜建业 | Anti-loosening screw |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526282A (en) * | 2022-01-20 | 2022-05-24 | 淄博天恒电气设备有限公司 | Never-loosening bolt pair |
| CN115387610A (en) * | 2022-09-20 | 2022-11-25 | 中建八局第一建设有限公司 | Connecting structure for ultrahigh formwork conversion construction and construction method |
| CN115387610B (en) * | 2022-09-20 | 2023-06-16 | 中建八局第一建设有限公司 | Connection structure for ultrahigh formwork transformation construction and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109989988B (en) | 2024-06-04 |
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