CN2306358Y - Locknut - Google Patents
Locknut Download PDFInfo
- Publication number
- CN2306358Y CN2306358Y CN 97227435 CN97227435U CN2306358Y CN 2306358 Y CN2306358 Y CN 2306358Y CN 97227435 CN97227435 CN 97227435 CN 97227435 U CN97227435 U CN 97227435U CN 2306358 Y CN2306358 Y CN 2306358Y
- Authority
- CN
- China
- Prior art keywords
- elastic ring
- nut
- utility
- model
- hexagon nut
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a pinch nut. The utility model is especially used in the places which are easy for slack connection under the condition of shock load and variable load, for example, the utility model is used in a flexible coupling device for steam turbines, etc. The lower end of the utility model is a common hexagonal nut, the top surface of the hexagonal nut is connected with threads for a threaded hole and an elastic ring which is continued with threads for the hexagonal nut, and a gap is between the elastic ring and the hexagonal nut. When the utility model is used, a screw bolt is penetrated from the position of the hexagonal nut, the elastic ring is expanded to connect with the screw bolt. After the elastic ring which is expanded is connected with the screw bolt, the elastic ring restores the original shape, and the screw bolt can be coated and locked. Compared with the common anti-loosening nut, the utility model has the advantages of simplicity, easy manufacture, and high quality.
Description
The utility model relates to a kind of fastening piece, and suitable especially being used in is prone to the loose place of connection under impulsive load, the varying load, as the locking nut of using on the steam turbine flexible coupling.
Existing lock nut is of a great variety, features and applications is respectively arranged, just provide a kind of as the patent No. 86204074 " lock nut " and be applicable to that use on the railway that is subjected to sharp pounding and impact, locomotive, mine, harbour, the pile driver can be through the two eccentric double-deck nut of dismounting repeatedly, but its complex structure, difficult processing, quality are difficult for guaranteeing.
The purpose of this utility model is to provide a kind of locking nut of the parts that are suitable for being used to being connected and fixed on impulsive load, varying load.
The utility model is achieved in that the locking nut lower end is common hexagon nut, and the upper-end surface of hexagon nut also connects screw screw thread and the continuous elastic ring of hexagon nut screw thread, and also gapped between elastic ring and hexagon nut.
Fig. 1, structural representation of the present utility model,
The plan view of Fig. 2, Fig. 1.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Hexagon nut (4) is general plain nut.
Elastic ring (2) has toroidal cavity (1), centre that the ring of screw is arranged in the middle of the upper surface.
Elastic ring (2) the screw degree of depth be two pitch communicate with hexagon nut (4) and screw thread continuous.Groove (1) on the elastic ring (2) plays the stiffening rib effect, increases elasticity, and its degree of depth is 1/3 pitch.Its external diameter is less than hexagon nut (4) inscribed circle diameter 1～2mm.With the contiguous block (5) that hexagon nut (4) has two places of symmetry to be connected as a single entity, all the other are that the gap (3) of two symmetrical parallel is 1/2～4/5 of a pitch.
After this locking nut is made, the upper surface of elastic ring (2) is pressed into the both sides symmetry and contiguous block (5) is located height, the low waveform in both sides with special tool, two minimum points symmetry also touches the upper-end surface of hexagon nut (4).
During use, bolt penetrates from hexagon nut (4), and elastic ring (2) distending is connected with bolt, connects back elastic ring (2) and restores to the original state again, and bolt is embraced jail locking.
The utility model compared with prior art, it is simple in structure, easily makes, and can be mass, quality is easy Guarantee that the elastic ring on it is except suitable spring washer effect and the in addition effect of clamping screw.
Claims (3)
1, a kind of locking nut, the lower end is common hexagon nut, it is characterized in that the upper-end surface of hexagon nut (4) also connects screw screw thread and the continuous elastic ring (2) of hexagon nut (4) screw thread, and also gapped between elastic ring (2) and hexagon nut (4).
2, locking nut according to claim 1, it is characterized in that elastic ring (2) is for there being toroidal cavity (1) in the middle of the upper surface, there is the ring of screw the centre, elastic ring (2) the screw degree of depth be two pitch communicate with hexagon nut (4) and screw thread continuous, its upper groove (1) degree of depth is 1/3 pitch, its external diameter is less than hexagon nut (4) inscribed circle diameter 1～2mm, with the contiguous block (5) that hexagon nut (4) has two places of symmetry to be connected as a single entity, all the other are that the gap (3) of two symmetrical parallel is 1/2～4/5 of a pitch.
3, locking nut according to claim 1 and 2, the upper surface that it is characterized in that elastic ring (2) is pressed into the both sides symmetry and contiguous block (5) is located height, the low waveform in both sides, and two minimum points symmetry also touches the upper-end surface of hexagon nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227435 CN2306358Y (en) | 1997-09-29 | 1997-09-29 | Locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227435 CN2306358Y (en) | 1997-09-29 | 1997-09-29 | Locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2306358Y true CN2306358Y (en) | 1999-02-03 |
Family
ID=33940847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97227435 Expired - Fee Related CN2306358Y (en) | 1997-09-29 | 1997-09-29 | Locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2306358Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106795905A (en) * | 2014-08-29 | 2017-05-31 | M·兰德维尔 | For the construction unit being axially fixed to part on bar and axle |
-
1997
- 1997-09-29 CN CN 97227435 patent/CN2306358Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106795905A (en) * | 2014-08-29 | 2017-05-31 | M·兰德维尔 | For the construction unit being axially fixed to part on bar and axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |