CN208966830U - A kind of novel dual stop nut external member - Google Patents
A kind of novel dual stop nut external member Download PDFInfo
- Publication number
- CN208966830U CN208966830U CN201821382034.1U CN201821382034U CN208966830U CN 208966830 U CN208966830 U CN 208966830U CN 201821382034 U CN201821382034 U CN 201821382034U CN 208966830 U CN208966830 U CN 208966830U
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- China
- Prior art keywords
- nut
- main
- inserted block
- main nut
- bolt
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- 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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Abstract
The utility model discloses a kind of novel dual stop nut external members, the bolt fastened including needs, the main nut and secondary nut covered on bolt, the main nut includes main nut body and the shim body that can be integrated with main nut body, and the side of main nut body opens up grooved hole；Shim body is equipped with elastic inserted block；One end of the pair nut is nut body, and the other end is the hollow cylinder stretched out, and hollow cylinder covers on main nut body.Being matched by the secondary nut of setting and main nut makes secondary nut generate retaining anti-loose effect to main nut, and elastic inserted block will receive radial thrust in the axial compression by secondary nut, elastic inserted block can be protruded into along the slot of main nut, and bolt is held out against, better anti-loosing effect is further reached.In addition, secondary nut also has certain protective effect to main nut.
Description
Technical field
The utility model relates to stop nut fields, more specifically, it relates to a kind of novel dual stop nut external member.
Background technique
Stop nut is widely used in always railway, ship and automobile and other industries, and with the development of economy, stop nut is adopted
With 30 ° of wedge-shaped checknuts come it is locking be no longer satisfied actual needs, especially in epoch of this increasingly fast development,
Requirement of the industrial production to stop nut is higher and higher.It is always a global problem that machanical fastener, which loosens, for nut
It is self-locking with locking characteristic in terms of research urgently break through.
The Chinese patent that an Authorization Notice No. is CN206234235U is now retrieved, which describe the locking spiral shells of integral type
Mother, including nut body and cyclic spring lock sheet, the cyclic spring lock sheet are arranged in nut body upper end and nut
Ontology is an integral structure；The cyclic spring lock sheet is bent to the threaded inside of nut body, and and nut body
Form an annular channel；The cyclic spring lock sheet internal diameter is less than nut body threaded portion internal diameter or the ring
Shape flexible locking piece and nut body threaded portion have slight dislocation axially or radially.But this stop nut can not expire
Sufficient industrial condition needs, and cyclic spring lock sheet may be loosened when encountering strenuous vibration, leads to the stop nut
It is ineffective.
Utility model content
The purpose of the utility model is to provide a kind of novel dual stop nut external members, reach better anti-loosing effect.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of novel dual stop nut external member, including for bolt main nut and secondary nut, the main nut include
The side of main nut body and shim body, main nut body opens up grooved hole；Shim body is equipped with elastic inserted block；The pair nut
One end be nut body, the other end is the hollow cylinder stretched out, hollow cylinder meeting when towards the axial movement of main nut body
Elastic inserted block is squeezed to drive elastic inserted block radially to insert to bolt；After secondary nut is separated with main nut, elastic inserted block complex displacement
It is dynamic to be detached from bolt to realize.
By adopting the above technical scheme, being matched by the secondary nut of setting and main nut makes secondary nut generate retaining to main nut
Anti-loose effect.And elastic inserted block will receive the radial thrust that secondary nut applies when secondary nut is moved axially towards main nut, from
And the slot along main nut protrudes into, and holds out against to bolt, further reaches better anti-loosing effect.Slot is the road of insertion
Diameter, the elastic inserted block for keeping main nut external realize the function of puller bolt.This set but also elastic inserted block top
It can stay in slot in a free state, improve the operability of puller bolt, while space can be saved.In addition, secondary nut pair
Main nut also has certain protective effect.
Preferably, after secondary nut is separated with main nut, elastic inserted block reset movement is to realize disengaging bolt.
By adopting the above technical scheme, when bolt needs to dismantle, secondary nut need to only be unscrewed, the elastic inserted block of main nut exists
The bolt held out against can be unclamped after not stressing automatically, restores initial position, can continue to use next time, not interfere with anti-loosing effect.
Preferably, the hollow cylinder is set as cone cell inclined-plane in the inner surface close to port position, and cone cell inclined-plane passes through axis
It is tangent in contact position to displacement and the positive camber of elastic inserted block.
By adopting the above technical scheme, secondary nut can effectively apply radial force to elastic inserted block during the fastening process, to make
Elastic inserted block puller bolt realizes locking functions.
Preferably, the threaded hole of the hollow cylinder and nut body is coaxial, and the internal diameter of hollow cylinder is greater than main nut body
The circumscribed circle diameter of cross section, the depth of hollow cylinder are greater than the height of main nut body.
By adopting the above technical scheme, so that secondary nut can cover main nut in complete fastening, to main nut and thereon
Elastic inserted block forms protective effect.
Preferably, the shim body is arranged on the end face of main nut body, with main nut body by integral forming.
By adopting the above technical scheme, main nut body and shim body will not generate friction, so as to avoid noise is generated.Only
Want the position of main nut body and bolt relatively fixed, the position of shim body is also relatively fixed, ensure that stability.Pass through main spiral shell
Parent and shim body are fixed together this structure, can once place in assembly and just complete installation, thus convenient for assembly.
Preferably, at least provided with two elastic inserted blocks in the shim body, and elastic inserted block is around the axle center of shim body
It is equally spaced.
By adopting the above technical scheme, elastic inserted block may make not need to store in vitro, therefore will not be due to small volume
It loses, so as to cause anti-loosing effect reduction.In addition, elastic inserted block is equally spaced by the axle center around shim body, spiral shell can be made
The pressure that bolt is subject to is also a kind of protection to bolt itself more evenly.
Preferably, the main body of elastic inserted block is the section that is squeezed of arc, and the top for the section that is squeezed is equipped with the wedge inserted to bolt
Shape block.
By adopting the above technical scheme, elastic inserted block can be generated in the axial compression by secondary nut squeezes the radial direction of bolt
Pressure, so that wedge block puller bolt be made to reach anti-loosing effect.Bolt external screw thread can be preferably abutted by the way that wedge block is arranged,
To more fully puller bolt.
Preferably, the top of the wedge block is located in slot in a free state.
By adopting the above technical scheme, it may make main nut that can smoothly be screwed into bolt in fastening, it is unobstructed.
In conclusion the utility model has the following beneficial effects:
1. by being arranged secondary nut and main nut is worked in coordination fastening, thus to main nut generation retaining anti-loose effect, together
When pair nut have protective effect to main nut；
2. elastic inserted block is in the axial compression by secondary nut, elastic inserted block can be protruded into along the slot of main nut, and
Bolt is held out against, better anti-loosing effect is further reached.
3. secondary nut need to only be unscrewed, the elastic inserted block of main nut is not stressing further, when needing demounting bolt
The bolt held out against can be unclamped automatically afterwards, restore initial position.Dual anti-loosing effect can release simultaneously, not need to use other works
Tool.
Detailed description of the invention
Fig. 1 is the main view after bolt in embodiment, main nut are combined with secondary nut；
Fig. 2 is the internal view of main nut and secondary nut in a disassembled state in embodiment.
In figure, 1, bolt；2, main nut；21, main nut body；211, internal thread hole；212, slot；22, shim body；
221, circular through hole；23, elastic inserted block；231, wedge block；232, be squeezed section；3, secondary nut；31, nut body；311, spiral shell
Pit；32, hollow cylinder；33, cone cell inclined-plane.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of novel dual stop nut external member is equipped with main nut on needing the bolt 1 fastened referring to Fig. 1 and Fig. 2
2 are used cooperatively with secondary nut 3, the secondary needs of nut 3 and main nut 2 and are just able to achieve dual anti-loosing effect.When fastening, need first with master
Nut 2 tightens bolt 1, is then screwed into secondary nut 3.It is close to main nut 2 in secondary nut 3 sufficiently to fasten bolt 1
While, the cone cell inclined-plane 33 of secondary nut 3 can make elastic 23 top of inserted block by squeezing the elastic inserted block 23 on main nut 2
The slot 212 that wedge block 231 passes through 2 side of main nut holds out against the bolt 1 of 2 the inside of main nut.
Main nut 2 includes main nut body 21 and shim body 22.Shim body 22 is horizontally installed on the one of main nut body 21
On a end face, be integrally formed with main nut body 21, the shaft core position of shim body 22 offer one it is interior with main nut body 21
The coaxial circular through hole 221 of threaded hole 211, the internal diameter of circular through hole 221 are identical as the internal diameter of internal thread hole 211.In gasket sheet
Opposite both ends are all cast with elastic inserted block 23, elastic inserted block 23 at equal intervals and are made of steel bar on 22 periphery of body, elastic inserted block
23 main body is the section 232 that is squeezed of arc, and the top of the section that is squeezed 232 is equipped with the wedge block 231 inserted to bolt 1.
Main nut body 21 offers the slot being square through 21 side of main nut body in the side being directed toward by wedge block 231
Hole 212,212 width of slot is of same size with 231 section of wedge block, and wedge block 231 can protrude into slot 212 and along slot
212 is mobile.Under original state, wedge block 231 is located in slot 212, and slot 212 is not stretched out on the top of wedge block 231
Both ends.
One end of secondary nut 3 is nut body 31, and the other end is stretched out based on 31 1 end faces of nut body
Hollow cylinder 32.The outer surface of hollow cylinder 32 is the extension of the outer surface of nut body 31, the inner surface of hollow cylinder 32
In the cylindrical shape coaxial with the threaded hole 311 of nut body 31, the internal diameter of hollow cylinder 32 is greater than 21 cross section of main nut body
Circumscribed circle diameter, the depth of hollow cylinder 32 are equal to the height of main nut body 21.Cylindrical inner surface is close to hollow cylinder 32
Port position when, begin to change into internal diameter constantly towards port increase cone cell inclined-plane 33.Cone cell inclined-plane 33 can pass through axial movement
It is tangent in contact position with the positive camber of the section 232 that is squeezed of elastic inserted block 23.
In use, first main nut 2 is screwed into since 22 one end of shim body the bolt 1 for needing to fasten.It tightens
After main nut 2, pair nut 3 is screwed into bolt 1 by 32 one end of hollow cylinder.The mistake of main nut 2 is moved closer in secondary nut 3
Cheng Zhong can be to bullet since the cone cell inclined-plane 33 of hollow cylinder 32 and the positive camber of the section 232 that is squeezed of elastic inserted block 23 mutually suit
Property inserted block 23 apply one and be screwed into the consistent axial force in direction with secondary nut 3 towards the radial force of bolt 1 and one, to make bullet
Property 23 top of inserted block wedge block 231 pass through slot 212, and directly hold out against the bolt 1 of the inside of main nut 2 along slot 212, play
First heavy anti-loose effect.After the fastening completely of secondary nut 3, hollow cylinder 32 is completely covered with elastic inserted block 23, to elastic inserted block
23 play a protective role.Meanwhile the basic end face of nut body 31 of secondary nut 3 is fitted closely with main nut 2, is risen to main nut 2
To the second heavy retaining anti-loose effect.
When needing demounting bolt 1, secondary nut 3 need to only be unscrewed, the elastic inserted block 23 of main nut 2 can be certainly after not stressing
It is dynamic to unclamp the bolt 1 held out against, return initial position.Dual anti-loosing effect can release simultaneously, not need to use other tools.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of novel dual stop nut external member, it is characterized in that: including main nut (2) and secondary spiral shell for fastening bolt (1)
Female (3), the main nut (2) includes main nut body (21) and shim body (22), and the side of main nut body (21), which offers, to be passed through
The slot (212) worn, shim body (22) are equipped with elastic inserted block (23)；One end of the pair nut (3) is nut body
(31), the other end is the hollow cylinder (32) stretched out, hollow cylinder (32) meeting when moving axially towards main nut body (21)
Elastic inserted block (23) is squeezed to drive elastic inserted block (23) radially to insert to bolt (1).
2. a kind of novel dual stop nut external member according to claim 1, it is characterized in that: when secondary nut (3) and main spiral shell
After female (2) separation, elastic inserted block (23) reset movement is detached from bolt (1) to realize.
3. a kind of novel dual stop nut external member according to claim 1, it is characterized in that: the hollow cylinder (32) exists
Inner surface close to port position is set as cone cell inclined-plane (33), and cone cell inclined-plane (33) pass through axial displacement and elastic inserted block (23)
Positive camber is tangent in contact position.
4. a kind of novel dual stop nut external member according to claim 1, it is characterized in that: the hollow cylinder (32) with
Coaxially, the internal diameter of hollow cylinder (32) is greater than the external of main nut body (21) cross section to the threaded hole (311) of nut body (31)
Circular diameter, the depth of hollow cylinder (32) are greater than the height of main nut body (21).
5. a kind of novel dual stop nut external member according to claim 1, it is characterized in that: the shim body (22) is set
It sets on the end face of main nut body (21), is integrally formed with main nut body (21).
6. a kind of novel dual stop nut external member according to claim 5, it is characterized in that: in the shim body (22)
At least provided with two elastic inserted blocks (23), and elastic inserted block (23) is equally spaced around the axle center of shim body (22).
7. a kind of novel dual stop nut external member according to claim 6, it is characterized in that: the main body of elastic inserted block (23)
For the section that is squeezed (232) of arc, the top of the section that is squeezed (232) is equipped with the wedge block (231) inserted to bolt (1).
8. a kind of novel dual stop nut external member according to claim 7, it is characterized in that: under free state, the wedge
The top of shape block (231) is located in slot (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382034.1U CN208966830U (en) | 2018-08-24 | 2018-08-24 | A kind of novel dual stop nut external member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821382034.1U CN208966830U (en) | 2018-08-24 | 2018-08-24 | A kind of novel dual stop nut external member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966830U true CN208966830U (en) | 2019-06-11 |
Family
ID=66752757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821382034.1U Expired - Fee Related CN208966830U (en) | 2018-08-24 | 2018-08-24 | A kind of novel dual stop nut external member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208966830U (en) |
-
2018
- 2018-08-24 CN CN201821382034.1U patent/CN208966830U/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 |
Granted publication date: 20190611 Termination date: 20200824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |