CN207945182U - A kind of nut - Google Patents
A kind of nut Download PDFInfo
- Publication number
- CN207945182U CN207945182U CN201820355861.5U CN201820355861U CN207945182U CN 207945182 U CN207945182 U CN 207945182U CN 201820355861 U CN201820355861 U CN 201820355861U CN 207945182 U CN207945182 U CN 207945182U
- Authority
- CN
- China
- Prior art keywords
- annular
- mounting groove
- nut
- annular mounting
- buffer spring
- 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
Links
- 239000011148 porous material Substances 0.000 claims abstract description 14
- 230000000903 blocking Effects 0.000 claims abstract description 7
- 230000000875 corresponding Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000036316 preload Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003139 buffering Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000789 fastener Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Abstract
The utility model discloses a kind of nut, including nut body, nut body includes interconnecting piece and twists portion, interconnecting piece and twists and forms ring-shaped step between portion, and the periphery of interconnecting piece is provided with external screw thread and is connected with locking nut；Annular mounting groove is provided on ring-shaped step, annular mounting groove inner periphery is evenly arranged with several pre- apical pores, blocking step is formd between annular mounting groove and pre- apical pore, pre- mandril is installed in pre- apical pore, circular orientation step is provided on pre- mandril, the side of circular orientation step is provided with the buffer spring one abutted with blocking step, the other side is arranged with the buffer spring two on pre- mandril；Locking nut one end corresponding with annular mounting groove is provided with the pre- top boss of the annular abutted with buffer spring two.The utility model can effectively prevent the threaded portion that nut causes nut to be engaged between the two with the component that is spirally connected during installation is twisted because excessively exerting oneself and be damaged.
Description
Technical field
The utility model is related to technical field of fastening, are specifically related to a kind of nut.
Background technology
Nut is widely used in every field as a kind of common fastener, and nut is a kind of and bolt, screw rod etc.
It is threaded together the part for playing the role of fastening with externally threaded spiro union portion, the tightness of nut relies primarily between screw thread
It is spirally connected and to be formed.In order to ensure the fastening effect of nut and prevent to loosen, usually can nut firmly be twisted, until very
It is difficult twist until, can even be superimposed using two nuts also, such situation often causes nut and is spirally connected component
The threaded portion engaged between the two is damaged, even if not causing the threaded portion that nut and the component that is spirally connected engage between the two at that time
Damage, but once influenced by larger external force, the screw thread of interconnecting piece will be damaged because of larger stress concentration；Furthermore
Nut can occur to loosen and fall off under violent, permanent shock conditions, to cause certain loss.
Invention content
The technical problem to be solved by the utility model is to provide a kind of nuts, can effectively prevent nut and are twisted in installation
The threaded portion for causing nut to be engaged between the two with the component that is spirally connected because excessively exerting oneself during turning is damaged；It is effective simultaneously
Prevent nut because there is a situation where loosen, fall off for vibrations.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of nut, including nut body, nut body include interconnecting piece and twist portion, interconnecting piece and twist shape between portion
Step is circularized, the periphery of the interconnecting piece is provided with external screw thread and is connected with locking nut；It is provided on the ring-shaped step
Annular mounting groove, annular mounting groove inner periphery are evenly arranged with several pre- apical pores, are formed between annular mounting groove and pre- apical pore
Blocking step is installed on pre- mandril in the pre- apical pore, and pre- mandril is partially in annular mounting groove simultaneously, the pre- mandril
Upper and in annular mounting groove one end is provided with and the matched circular orientation step of annular mounting groove, the circular orientation platform
The side of rank is provided with the buffer spring one abutted with blocking step, the other side is arranged with the buffer spring two on pre- mandril；
Locking nut one end corresponding with annular mounting groove is provided with the pre- top boss of the annular abutted with buffer spring two, and annular is pre-
Top boss can match in annular mounting groove.
The annular pre- push up is provided with ring washer between boss and buffer spring two.
Subordinate's end set of twisting has annular inclined surface, annular inclined surface to begin to tilt upwards from pre- apical pore.
Inside and outside wall, buffer spring one and the buffer spring two of the ring washer have between annular mounting groove respectively
Gap.
The height of the pre- top boss of annular is less than the depth of annular mounting groove.
The ring washer is made of polytetrafluoro material.
What the utility model can reach has the technical effect that：
Compared with prior art, the utility model can make nut body to pre-tightening by pre- mandril during installation
A kind of elastic pre-stress is kept between component, even if twisting nut body exertin, and nut is nibbled between the two with the component that is spirally connected
The threaded portion of conjunction is also the elastic force of buffer spring one and buffer spring two mostly by more power, while also can be by twisting
Power between the threaded portion that locking locknut adjusting nut engages between the two with the component that is spirally connected, so effectively avoiding twisting nut sheet
The damage for twisting the threaded portion for causing nut and the component that is spirally connected to engage between the two of exertin during body.
Compared with prior art, the utility model finishes during use by nut twist-on, one He of buffer spring
The elastic force of buffer spring two is acted on by pre- mandril pre-tighten on component always, therefore between nut body and preload component always
Mutually keep elastic top power, thus it is effective prevent nut body because vibrations loosen fall off the case where.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments：
Fig. 1 is the sectional structure chart of the utility model；
Fig. 2 is the portions the A enlarged drawing of Fig. 1.
Specific implementation mode
It please refers to Fig.1, Fig. 2, the utility model provides a kind of nut, including nut body 1, and nut body 1 includes connection
It portion 2 and twists portion 3, interconnecting piece 2 and twists and form ring-shaped step 4 between portion 3, the periphery of the interconnecting piece 2 is provided with external screw thread
And it is connected with locking nut 5；Annular mounting groove 6 is provided on the ring-shaped step 4,6 inner periphery of annular mounting groove is uniformly arranged
There are several pre- apical pores 7, blocking step 8 is formd between annular mounting groove 6 and pre- apical pore 7, is installed in the pre- apical pore 7 pre-
Mandril 9, pre- mandril 9 are partially in annular mounting groove 6 simultaneously, on the pre- mandril 9 and one end in annular mounting groove 6
Be provided with 6 matched circular orientation step 10 of annular mounting groove, the side of the circular orientation step 10 is provided with and stops
The buffer spring 1 of the abutting of step 8, the other side are arranged with the buffer spring 2 12 on pre- mandril 9；The locking nut 5 with
6 corresponding one end of annular mounting groove is provided with the pre- top boss 13 of the annular abutted with buffer spring 2 12, the pre- top boss 13 of annular
It can match in annular mounting groove 6.
The annular pre- push up is provided with ring washer 14 between boss 13 and buffer spring 2 12.
3 lower end of portion of twisting is provided with annular inclined surface 15, and annular inclined surface 15 begins to tilt upwards from pre- apical pore 7.
Inside and outside wall, buffer spring 1 and the buffer spring 2 12 of the ring washer 14 respectively with annular mounting groove 6
Between have gap.
The height of the pre- top boss 13 of annular is less than the depth of annular mounting groove 6.
The ring washer 14 is made of polytetrafluoro material, because of the characteristic of polytetrafluoroethylene material, so ring washer
Have the advantages that low friction, high abrasion.
It makes an explanation below to the operation principle of the utility model：
When installing and using, locking nut 5 is twisted first, and the pre- top boss 13 of annular of 5 lower end of locking nut compresses buffering
Spring 2 12, buffer spring 2 12 is against on the circular orientation step 10 of pre- mandril 9 while its elastic force compresses pre- mandril 9, pre- to push up
Bar 9 compresses buffer spring 1 and movement, until pre- mandril 9 exposes the lower face for twisting portion 3, the length that pre- mandril 9 exposes can
Depending on actual use situation.
Then nut body 1 is started and is bolted, pre- mandril 9 is pressed on preload component when twisting to a certain extent
On, if twisting excessively, excessive is twisted power transferance in buffer spring by the meeting reverse compression of pre- mandril 9 buffer spring 2 12
On 2 12, and twist 3 lower end of portion be provided with annular inclined surface 15 it is observed that pre- mandril 9 stretching situation and whether have
There is active force, while when nut body 1 loosens, 2 12 elastic force of buffer spring can compress pre- mandril 9, and so that it is acted on pre-
On tight component, make to keep an active force between nut body 1 and preload component, to further prevent nut body 1 and bolt
Between because vibrations generate loosening due to fall off the case where.
A kind of nut provided above the utility model embodiment is described in detail, used herein specifically
A example is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to understand this
The revealed technical solution of utility model；Meanwhile for those of ordinary skill in the art, according to the thought of the utility model,
There will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as this reality
With novel limitation.
Claims (6)
1. a kind of nut, including nut body, it is characterised in that；Nut body includes interconnecting piece and twists portion, interconnecting piece and is twisted
Ring-shaped step is formed between transfer part, the periphery of the interconnecting piece is provided with external screw thread and is connected with locking nut；The annular table
Annular mounting groove is provided on rank, annular mounting groove inner periphery is evenly arranged with several pre- apical pores, annular mounting groove and pre- top
Blocking step is formd between hole, and pre- mandril is installed in the pre- apical pore, pre- mandril is partially in annular mounting groove simultaneously,
On the pre- mandril and one end in the annular mounting groove be provided with the matched circular orientation step of annular mounting groove, it is described
The side of circular orientation step is provided with the buffer spring one abutted with blocking step, the other side is arranged with delaying on pre- mandril
Rush spring two；Locking nut one end corresponding with annular mounting groove be provided with abutted with buffer spring two annular push up in advance it is convex
Platform, the pre- top boss of annular can match in annular mounting groove.
2. a kind of nut according to claim 1, it is characterised in that：The annular is pre- to push up between boss and buffer spring two
It is provided with ring washer.
3. a kind of nut according to claim 1, it is characterised in that：Subordinate's end set of twisting has annular inclination
Face, annular inclined surface begin to tilt upwards from pre- apical pore.
4. a kind of nut according to claim 2, it is characterised in that：Inside and outside wall, the buffer spring one of the ring washer
And buffer spring two has gap between annular mounting groove respectively.
5. a kind of nut according to claim 2, it is characterised in that：The pre- top boss height of annular is less than annular and installs
The depth of slot.
6. a kind of nut according to claim 2, it is characterised in that：The ring washer is made of polytetrafluoro material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355861.5U CN207945182U (en) | 2018-03-16 | 2018-03-16 | A kind of nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820355861.5U CN207945182U (en) | 2018-03-16 | 2018-03-16 | A kind of nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945182U true CN207945182U (en) | 2018-10-09 |
Family
ID=63697050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820355861.5U Expired - Fee Related CN207945182U (en) | 2018-03-16 | 2018-03-16 | A kind of nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945182U (en) |
-
2018
- 2018-03-16 CN CN201820355861.5U patent/CN207945182U/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: 20181009 Termination date: 20190316 |