CN207145418U - A kind of loose-proof screw - Google Patents
A kind of loose-proof screw Download PDFInfo
- Publication number
- CN207145418U CN207145418U CN201720993046.7U CN201720993046U CN207145418U CN 207145418 U CN207145418 U CN 207145418U CN 201720993046 U CN201720993046 U CN 201720993046U CN 207145418 U CN207145418 U CN 207145418U
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- cutting ferrule
- hole
- loose
- 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
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Abstract
The utility model belongs to machine component field, a kind of loose-proof screw, including bolt, nut and cap card are provided, bolt and nut screw thread are connected, opened up upwards in bolt axle fluted, through hole is radially offered in nut, cap card includes hollow cutting ferrule, card pin, spring and baffle plate, and hollow cutting ferrule is embedded in through hole, spring one end is fixed on the end cap of hollow cutting ferrule, the other end is connected with the baffle plate in hollow cutting ferrule, after card pin the inner passes through hollow cutting ferrule and through hole, is inserted in groove.In the utility model, when nut is rotated in place it is rear when, card pin under the action of the spring, card pin the inner tightly withstand in bolt indentation, nut, bolt is all rotated, effectively prevent nut, bolt looseness.
Description
Technical field
It the utility model is related to machine component field, and in particular to a kind of loose-proof screw.
Background technology
Screw is widely used in each field, and its operation principle is the screw thread being rotated into by nut in bolt, is connected with reaching
The purpose of pipe fitting.At present, known screw is after tightening, due to by expand with heat and contract with cold, time of vibration is influenceed screw will
Loosen, do not have fixed effect, particularly in some important places, screw one, which loosens, will result in immeasurable damage
Lose.
The content of the invention
For in the prior art the defects of, the utility model provides a kind of loose-proof screw, solves existing screw and easily loosens
The problem of.
Concrete technical scheme is as described below：
A kind of loose-proof screw, including bolt, nut and cap card, bolt and nut are connected using screw thread, the spiral shell
Stud shaft opens up fluted upwards, and the nut radially offers through hole, the cap card include hollow cutting ferrule, card pin, spring and
Baffle plate, the hollow cutting ferrule are embedded in the through hole, and the spring one end is fixed on the end cap of the hollow cutting ferrule, the other end with
Baffle plate connection in the hollow cutting ferrule, after described card pin the inner passes through the hollow cutting ferrule and the through hole, insert institute
State in groove.
The utility model, which is achieved in that, is fixed tightly in nut on bolt using spanner, after card pin and groove centering,
In card pin insertion groove, you can prevent nut left rotation and right rotation from loosening, in spanner clamping bolt and nut, will block using external force
Pin is pulled in cap card, and card pin the inner special shape can also be used by card pin and nut together precession bolt, recycle external force afterwards
Pull, revotating card pin, make in card pin insertion groove.
To better implement the present invention, can further limit, the through hole is opened in the nut close to the position of bottom,
The through hole includes endoporus and exit orifice, and the endoporus and the exit orifice are by step transition, and the diameter of the exit orifice is more than described
The diameter of endoporus, the hollow cutting ferrule are fixed on the exit orifice periphery.
Beneficial effect：Through hole is opened in nut close to the position of bottom, can reduce and set card cap to spanner fastening screw
Influence.
Preferably, described card pin the inner is yi word pattern, and the inner width of the card pin is more than the neighbouring screw thread of the bolt
Spacing, the inner thickness of the card pin is less than the spacing of the neighbouring screw thread of the bolt.
Beneficial effect, in nut precession bolt, card pin can be with nut together precession bolt, without nut precession process
In, also card pin is pulled in card cap using external force.
Preferably, the inner of the card pin yi word pattern has inclined-plane.
Beneficial effect, card pin can be prevented to be stuck in groove, can not rotary nut.
Further limit, the through hole longitudinal center line is vertical with the nut longitudinal center line or oblique.
Further limit, bolt axially offers some grooves, and the nut radially opens up and the number of recesses
The through hole to match.
Preferably, bolt is axially symmetric offers two grooves.
Further limit, the hollow cutting ferrule is welded or is integrally formed with the nut.
Compared with prior art, the utility model has the beneficial effect that：
When nut is rotated in place it is rear when, card pin under the action of the spring, card pin the inner tightly withstand in bolt indentation, make
Nut, bolt can not all rotate, and effectively prevent nut, bolt looseness.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art.In all of the figs, it is similar
Element or part are typically identified by similar reference.In accompanying drawing, each element or part might not be according to the ratios of reality
Draw.
Fig. 1 is the first example structure sectional view of the utility model；
Fig. 2 is bolt arrangement front view shown in Fig. 1；
Fig. 3 is bolt arrangement top view shown in Fig. 1；
Fig. 4 is nut structure front view shown in Fig. 1；
Fig. 5 is second of embodiment cap card structure schematic diagram of the utility model.
Reference：1st, bolt；11st, groove；2nd, nut；21st, through hole；211st, endoporus；212nd, exit orifice, 3, cap card；31st, in
Empty calorie set, 32, card pin；33rd, spring；34th, baffle plate；35th, inclined-plane.
Embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with accompanying drawing.Following examples are only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and this practicality can not be limited with this
New protection domain.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality
The ordinary meaning understood with new one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " " center ", " width ", " thickness ", " on ", " under ",
"front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " axial direction ", " radial direction ", " circumference " etc. refer to
The orientation or position relationship shown be based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and
Simplify description, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific azimuth configuration
And operation, therefore it is not intended that to limitation of the present utility model.
Describe the utility model preferred structure and effect in detail referring to the drawings.
Embodiment 1：A kind of loose-proof screw, including bolt 1, nut 2 and cap card 3, bolt 1 and the screw thread of nut 2, which coordinate, to be connected
Connect.
As shown in Figures 2 and 3, two grooves 11 are symmetrically opened up on the axial direction of bolt 1, can also be opened up one or more of
Groove 11.
As shown in figure 4, radially offer through hole 21, the quantity and groove of through hole 21 close to bottom position in nut 2
11 quantity is consistent, and the through hole 21 includes endoporus 211 and exit orifice 212, and endoporus 211 and exit orifice 212 are by step transition, and exit orifice
212 diameter is more than the diameter of endoporus 211.
As shown in figure 1, cap card 3 includes hollow cutting ferrule 31, card pin 32, spring 33 and baffle plate 34, the hollow outer wall of cutting ferrule 31 weldering
It is connected on the inner periphery of exit orifice 212, can also be integrally formed with nut 2, the one end of spring 33 is fixed on the end cap of hollow cutting ferrule 31,
The other end is connected with the baffle plate 34 in hollow cutting ferrule 31, after the inner of card pin 32 passes through hollow cutting ferrule 31 and through hole 21, insertion
In groove 11, card pin 32 is fixedly connected with baffle plate 34, and card pin 32 is in the presence of external force, and baffle plate 34 is with card pin 32 to middle empty calorie
Cover and moved at 31 end caps, after external force stops, the automatic rebounding under the effect of spring 33 with card pin 32 of baffle plate 34.
Embodiment 2：As shown in figure 5, with the basic structure identical of embodiment 1 in the case of, it is described as further optimization
The inner of card pin 32 is yi word pattern, and the inner width of the card pin 32 is more than the spacing of 1 neighbouring screw thread of bolt, and the card pin 32 is inner
Thickness be less than 1 neighbouring screw thread of bolt spacing, the inner of the yi word pattern of card pin 32 has inclined-plane 35.
This optimal way, when being easy to 2 precession bolt 1 of nut, card pin 32 is with nut 2 together precession, without using external force
Card pin 31 is stretched to hollow cutting ferrule 31, convenient working human users, the inner of the yi word pattern of card pin 32 is arranged to inclined-plane 35, prevented
Card pin 32 and nut 2 are stuck in groove 11 when rotating.
It needs to be emphasized that in embodiment 1 and embodiment 2, through hole 21 with nut 2 is vertical or oblique
Mounting cap card 3, so as to realize the purpose for preventing loosened screw.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type, it all should cover among claim of the present utility model and the scope of specification.
Claims (8)
1. a kind of loose-proof screw, including bolt (1) and the nut (2) with bolt (1) screw thread cooperation, it is characterised in that also
Including cap card (3), fluted (11) are opened up on the bolt (1) axial direction, through hole is radially offered in the nut (2)
(21), the cap card (3) includes hollow cutting ferrule (31), card pin (32), spring (33) and baffle plate (34), the hollow cutting ferrule (31)
In the embedded through hole (21), described spring (33) one end is fixed on the end cap of the hollow cutting ferrule (31), and the other end is with being located at
Baffle plate (34) connection in the hollow cutting ferrule (31), the card pin (32) are inner through the hollow cutting ferrule (31) and described logical
Behind hole (21), insert in the groove (11).
2. a kind of loose-proof screw according to claim 1, it is characterised in that the through hole (21) is opened in the nut
(2) close to the position of bottom, the through hole (21) includes endoporus (211) and exit orifice (212), the endoporus (211) and the exit orifice
(212) by step transition, and the diameter of the exit orifice (212) is more than the diameter of the endoporus (211), the hollow cutting ferrule
(31) it is fixed on the exit orifice (212) periphery.
3. a kind of loose-proof screw according to claim 1, it is characterised in that described card pin (32) the inner is yi word pattern, should
The inner width of card pin (32) is more than the spacing of the bolt (1) neighbouring screw thread, and the inner thickness of the card pin (32) is less than
The spacing of the neighbouring screw thread of the bolt (1).
4. a kind of loose-proof screw according to claim 3, it is characterised in that the inner of card pin (32) yi word pattern has
Inclined-plane (35).
A kind of 5. loose-proof screw according to claim 1, it is characterised in that through hole (21) longitudinal center line with it is described
Nut (2) longitudinal center line is vertical or oblique.
6. a kind of loose-proof screw according to claim 1, it is characterised in that bolt (1) axially offers some grooves
(11), the nut (2) radially opens up the through hole (21) to match with the groove (11) quantity.
7. a kind of loose-proof screw according to claim 6, it is characterised in that symmetrically offer two on bolt (1) axial direction
Groove (11).
8. a kind of loose-proof screw according to claim 1, it is characterised in that the hollow cutting ferrule (31) and the nut
(2) weld or be integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993046.7U CN207145418U (en) | 2017-08-09 | 2017-08-09 | A kind of loose-proof screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993046.7U CN207145418U (en) | 2017-08-09 | 2017-08-09 | A kind of loose-proof screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145418U true CN207145418U (en) | 2018-03-27 |
Family
ID=61666232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720993046.7U Expired - Fee Related CN207145418U (en) | 2017-08-09 | 2017-08-09 | A kind of loose-proof screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145418U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645253A (en) * | 2019-09-29 | 2020-01-03 | 宁波金鼎紧固件有限公司 | Nut and bolt assembly capable of self-locking |
| CN110821941A (en) * | 2019-09-29 | 2020-02-21 | 宁波金鼎紧固件有限公司 | Triangular tooth flange bolt assembly of lock takes one's place |
| CN110900964A (en) * | 2019-11-05 | 2020-03-24 | 江苏永兴金融设备有限公司 | Accurate mould in location |
-
2017
- 2017-08-09 CN CN201720993046.7U patent/CN207145418U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645253A (en) * | 2019-09-29 | 2020-01-03 | 宁波金鼎紧固件有限公司 | Nut and bolt assembly capable of self-locking |
| CN110821941A (en) * | 2019-09-29 | 2020-02-21 | 宁波金鼎紧固件有限公司 | Triangular tooth flange bolt assembly of lock takes one's place |
| CN110900964A (en) * | 2019-11-05 | 2020-03-24 | 江苏永兴金融设备有限公司 | Accurate mould in location |
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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: 20180327 Termination date: 20180809 |